INFORMATION OF THE
SYSTEM PROTECTION DEPARTMENT
B.E.S. & T. UNDERTAKING
[ Information mandatory under Section 4 of Chapter II of Right to Information Act, 2005]
1
4.(b) (i)} The particulars of the department, functions and duties
Name of the Department
System Protection Department
Address
2nd Floor, Technical Training Centre Bldg., BEST Wadala
Depot, Wadala, Mumbai- 400 031.
Contact No.
022-24186301, 24186304
E-mail
desp@bestundertaking.com
system_protection@yahoo.com
1.0
Formation of System Protection Department
The erstwhile Meters and Relays Department was carrying out three major functions viz.,
Meters, Relays and HV metering. In the advent of the Electricity Act, 2003, a need was
felt to restructure the Electric Supply Branch to segregate the activities as Field Operating
establishment, Customer Care establishment, Planning Establishment and Ancillary
Establishment for smooth working and flexibility in horizontal mobility of the personnel
for better utilization. Accordingly while restructuring the supply branch the Meters &
Relays Department was bifurcated into two departments as Meters Department under
Customer Care establishment (Supply Business) and System Protection Department
under Field Operating establishment (Wire Business) vide Administrative Order no. 359
dated 07.09.2011. The System Protection Department has been kept under the direct
control of Chief Engineer (Maint. / Work). System Protection department has started its
functioning from 22nd October 2011 and its office is located at 2nd floor, T.T.C. building,
Wadala Depot.
1.1
Organization of the department:
The department set up is shown in the attached organization chart. Please refer
Annexure- I. The activities of the department are mainly related with five O & M
Divisions. Hence each zone of O & M Divisions is assigned to five Assistant Engineers.
2
2.0
Activities of System Protection Department :
The System Protection department is responsible for carrying out activities of testing and
maintenance of all the relays installed in various Receiving stations for the protection of
our 110 kV, 33 kV and 11 kV network. The discriminative tripping is the backbone of
any distribution system since it helps in isolating the exact fault area and thus avoids the
unnecessary revenue loss which otherwise would have incurred if the healthy network
also would have tripped along with faulty network. At present (till February 2013) there
are 54 nos. of RSS, out of which 4 nos. are 110 kV RSS. In addition to the above 9 nos.
of new RSS are in pipeline and are expected to be commissioned in the recent future.
Besides tripping messages are also attended by the System Protection Department for
investigation and for taking corrective measures, if any.
The Functions and duties of department
I)
Technical Functions
1..0
The System Protection Department carries out following major functions
i) Setting and testing of Relays & other equipments prior to commissioning of new RSS
ii) Setting and testing of Relays & other equipments prior to replacement of equipments
in existing RSS
iii) Routine maintenance which includes inspection, testing and attending defects of CT,
PT and Relays
iv) Tripping investigations and remedial actions
v) Trip coil testing of DSS Breakers at Distribution Workshop, Kussara
vi) Study of drawings of various equipments received from manufacturers
vii) To adopt proper protection system
viii) To derive the relay setting for adopted protection system.
1.2
The above functions consists of following activities
a)
Routine Testing
i)
Outgoing Feeder Relay testing
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b)
c)
d)
ii)
Capacitor Feeder Relay testing
iii)
Transformer Relay testing
iv)
OCB overhauling
v)
AVR inspection and overhauling
Tripping
i)
Transformer tripping investigation
ii)
Feeder tripping investigation
iii)
Defective AVR repairs / replacement
iv)
Defective CT & PT replacement
v)
Defective Relay replacement
New commissioning and replacement jobs
i)
Noting of details & rough drawings
ii)
HV CT and NCT testing
iii)
LV CT testing
iv)
HV & LV PT testing
v)
Through testing
vi)
RD & REF Stability testing
vii)
Report & maintaining Fair History book
viii)
RVT testing
ix)
Conventional relay replacement by Numerical Relay in South Zone.
Commissioning of new SCADA System
i)
HV, LV and NCT testing
ii)
HV & LV PT testing
iii)
Through testing
iv)
RD & REF Stability testing
v)
Report & maintaining Fair History book
vi)
Commissioning of AREVA make relays on feeder.
4
e)
Miscellaneous
i) Materials arrangement
ii) Office work
II)
Establishment and Administrative Section Function
1.0 Activities :
1.1
Establishment:
i. Maintaining staff position
ii. Initiating various proposals relating to Establishment matters
iii. Keeping staff record, file, register etc.
1.2
Administrative :
1.2.1
Procurement of stationary & material
1.2.2
Arranging various payments
1.2.3
House-keeping
1.2.4
Initiating various proposals relating to Administrative matter
1.2.5
Keeping records
2.0
Records and Registers
2.1
Registers
2.1.1 Establishment
2.2
2.1.1
Staff Record, Bus Token
2.1.2
Staff position, Superannuation
2.1.3
Final Dues Payment
2.1.4
Service Record File Movement
Dispatch:
Inwards/Outward/File movement/Tenders & Inspection Forms/Purchase Forms
2.3
Administration :
Bill Voucher, Deputation, Brief-case, Verification of Registration of Motor cars,
Computer repairing & servicing, Inventory, Overtime, Sunday working, Purchase Form,
Issue of Napkins/ Soap, Leave, Attendance, Zerox copy records, Imprest Cash, Annual
Maintenance Contract of Computer/ Printers, Casual Labour Attendance & Payment, etc..
5
2.4
Files:
2.4.1 Establishment & Administration
2.4.2 Miscellaneous
4.(b)(ii)} The powers and duties of System Protection Department
Officers and Employees
Designation
Grade
On Roll Staff
Divisional Engineer
A-3
1
Superintendent
A-4
1
Assistant Engineer
A-5
5
P1/T-8
6
A/GVIII
1
Foreman
P1/T7
5
Asst. Foreman
P1/T6
4
Tradesman
P1/T3
1
Nawghany
P1/T1
5
M.V. Driver
P2/G3
1
Clerk {Supervisor (P)}
A/GVII
1
Shop Recorder {Supervisor (P)}
A/GVII
1
Sepoy
A/GV I
1
i)
Officers
Foreman General
Asst. Admin. Officer
ii) Technical Staff
iii) Administrative Staff
6
1.0
The Powers and Duties of Divisional Engineer:
Divisional Engineer System Protection Department is over all in-charge of System
Protection Department. He is directly reporting to Chief Engineer Maintenance for
efficient administration and functioning of the department.
1.1
Duties & Responsibilities
1.1.1
To ensure smooth and satisfactory working of the department.
1.1.2
To supervise the activities of the department as mentioned under para D (3.0) and
guide the officers and staff under his control.
1.1.3
To initiate new methods / developing supportive work atmosphere for
economizing and increasing efficiency of the department.
1.2
1.1.4
To control the budget grants.
1.1.5
Attending different departmental/ outdoor meetings.
1.1.6
Complying with Standing Orders/ Service Regulations.
1.1.7
Guiding for preparing MIS/Administrative Report.
1.1.8
Guiding for preparing different proposals/reports.
Administrative Functions
1.2.1
To sanction Leave Forms of A & B grade Officers working in System Protection
Department.
1.2.2
To certify the attendance of the officers and staff and to sanction of various types
of Bills vouchers, Overtime etc.
1.2.3
To approve payment advices of various types of monthly allowances payable to
officers and staff, casual labour payments.
1.2.4
To determine the staff requirement for smooth working of the department. To take
up the matter with higher authorities and concerned panel chairmen for filling up
of the vacancy.
1.2.5
Writing of Confidential reports of Officers & staff working under him.
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2.0
The Powers and Duties of Superintendent:
Superintendent, System Protection Department, the second senior most officer, is
reporting to the Divisional Engineer System Protection and shall be responsible for the
following activities:
2.1
He is overall in-charge of the activities mentioned under para D (3.0) and shall
assist Divisional Engineer for
2.1.1
Ensuring smooth and satisfactory working of the department.
2.1.2
To supervise the activities of the department as mentioned in para D (3.0) and
guide the officers and staff under his control.
2.1.3
To initiate new methods / developing supportive work atmosphere for
economizing and increasing efficiency of the department.
2.1.4
To control the budget grants.
2.1.5
To prepare proposals for purchase of new equipments considering the new
development in the relaying field.
2.1.6
To approve protection system adopted for various R.S.S.
2.1.7
To approve settings adopted for various R.S.S.
2.1.8
To sublet satisfactory training of Probationary Engineers. Senior Stipendiary
Apprentices
2.1.9
To visit at work site for ensuring programming of the numerical relays at the time
of commissioning of Receiving Sub Stations and to ensure relay testing, through
testing and stability test of Receiving Sub Stations Transformers.
2.1.10 To attend Tender Committee meeting.
2.1.11 To carry out Inspection of new material purchased and clear the Inspection
Memo.
2.1.12 To assist Assistant Engineer to offer the comments on specification & drawing of
Control Relay Panel, Primary switchgear, Secondary switchgears & Bus Section
switchgears used in RSS & 11kV switchgears including RMU in DSS.
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2.2
Administrative Functions
2.2.1
Sanction Leave Forms of Officers & Staff working in System Protection
Department.
2.2.2
Certify the attendance, Taxi Bills, Xerox Bills, and Overtime etc.
2.2.3
Writing of Confidential reports of Officers & staff working under him.
2.2.4
Supervision of Officers & staff working under him.
2.2.5
Drafting inter-departmental notes and letters.
2.2.6
Recommending tenders for procurement of Materials/equipments.
2.2.7
Attending different inter-departmental/ outdoor meetings.
2.2.8
Complying with Standing Orders/ Service Regulations.
2.2.9
Assisting Assistant Engineers for preparing MIS/Administrative Report.
2.2.10 Assisting Assistant Engineers for preparing different proposals/reports.
2.2.11 Assisting Assistant Engineers for budget provision.
3.0
The Powers and Duties of Assistant Engineers
3.1
Duties & Responsibilities
There are five posts of Assistant Engineers in the System Protection Department for five
zones i.e. Central North, North East, North West, South & Central South. Assistant
Engineers are responsible to Superintendent Engineer for the major activities mentioned
under para D (3.0) and shall carryout:
3.1.1
To derive setting of protective relay for adopted protection system.
3.1.2
Repairs, setting and testing of Protective relays in Receiving Sub-Stations.
3.1.3
Current and Potential transformer testing in Receiving Sub-Stations.
3.1.4
Repairing, setting and testing of AVR‘s i.e. Automatic Voltage Regulating relays.
3.1.5
CT and Trip Coil testing of OCB/VCB/RMU in Distribution Workshop, Kussara.
3.1.6
Procurement of equipment/Instrument, tools and spares for System Protection
Department.
3.1.7
Up-keeping an account of relays, AVR‘s and other equipments / instruments of
System Protection Department.
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3.1.8
Carry out pre-commissioning tests on equipments/ instruments of Receiving Sub
stations
3.1.9
Carry out pre-commissioning tests on equipments of Distribution Sub stations as
and when required.
3.1.10 Commissioning of new protective relays on trial basis.
3.1.11 Preparing commissioning report of Receiving Sub stations.
3.1.12 Initiating proposals for scrapping of protective relays, equipments/instruments,
tools, auxiliary C.T.‘s etc.
3.1.13 Carrying out tripping investigation in the Receiving Sub Stations & preparing
tripping investigation report.
3.1.14 Inspection of Materials received against Purchase Order.
3.1.15 To sublet satisfactory training of Probationary Engineers. Senior Stipendiary
Apprentices
3.1.16 To program the numerical relays at the time of commissioning of equipments in
new / existing Receiving Sub Stations.
3.1.17 To carryout testing of Current and Potential transformers in Receiving SubStations.
3.1.18 To carry out commissioning tests i.e. relay testing, through testing and stability
tests of Transformers in Receiving Sub Stations.
3.1.19 To carry out commissioning tests i.e. relay testing, through testing of feeders in
Receiving Sub Stations.
3.1.20 To offer the comments on specification & drawing of Control, Alarm Relay
Panel, Primary switchgear, Secondary switchgears & Bus Section switchgears
used in RSS & 11kV switchgears including RMU in DSS.
3.1.21 To prepare different formats for relay testing and through testing of Outgoing
feeders, Capacitor feeder and Power Transformer to ease testing.
3.1.22 To arrange repairing of protection relays, instruments, AVRs, Auxiliary relay
from Manufacturer and administrative procedure thereof.
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3.2
Administrative Functions
3.2.1
Sanction Leave Forms of Staff working in System Protection Department.
3.2.2
Certify the attendance, Taxi Bills, Xerox Bills, and Overtime etc.
3.2.3
Writing of Confidential reports of staff working under him.
3.2.4
Supervision of staff working under him.
3.2.5
Drafting inter-departmental notes and letters.
3.2.6
Recommending tenders for procurement of Materials/equipments.
3.2.7
Attending different departmental/ outdoor meetings.
3.2.8
Complying with Standing Orders/ Service Regulations.
3.2.9
Assisting Sectional Head for preparing MIS/Administrative Report.
3.2.10 Assisting Sectional Head for preparing different proposals/reports.
3.2.11 Forwarding statement of Group Incentive Bonus.
3.2.12 Assisting Sectional Head for budget provision.
4.0
The Powers and Duties of Foreman General (T-8)
4.1
Duties and Responsibilities
Foreman General is responsible to Assistant Engineer for the following activities for the
jobs mentioned under para D (3.0).
4.1.1
Arranging testing equipments for relay setting and testing at site.
4.1.2
Repairs and testing of protective relays, Automatic Voltage Regulating relays in
Receiving Sub Stations.
4.1.3
CT and Trip coil testing of RMU/VCB in Distribution Workshop, Kussara.
4.1.4
Procurement of various electrical/electronic items and stationary for the relay
testing crew.
4.1.5
Keeping account of spares parts, relays, auxiliary C.T.‘s etc. pertaining to System
Protection Department.
4.1.6
Maintaining/updating various registers of System Protection Department.
4.1.7
Maintaining different technical drawing, documents of protection system
equipments, testing equipment, instruments etc.
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4.1.8
Carrying out Pre-commissioning test of protection system at Receiving Sub
Stations.
4.1.9
Carrying out tripping investigations as & when required.
4.1.10 Preparing and forwarding tripping investigation reports.
4.1.11 Attending complaints pertaining to protection system received from concerned
departments.
4.1.12 Supervision of staff working under him.
4.1.13 Writing report after completion of job.
4.1.14 Ensuring that all the jobs/activities assigned to him are carried out in reasonable
time.
4.1.15 Ensuring that the quality of the job assigned is maintained.
4.1.16 Assisting SCADA installation crew for checking the healthiness of circuits.
4.1.17 Maintenance of different registers, files associated with Commissioning of
Receiving Sub Stations equipments/ instruments and Routine Relay Testing.
4.1.18 The job completion message shall be lodge in the respective Control.
4.1.19 Ensuring that vehicles and log books are maintained properly.
4.1.20 To maintain the fair history books for each RSS with all technical details and
connection diagrams as per actual wiring carried out.
4.1.21 To carry out activities as mentioned under para D (3.0)
4.1.22 Recommended leave forms of staff working under him.
4.1.23 Assisting SSP/AESP for preparing MIS and Annual Report.
4.1.24 Preparing and forwarding incentive statements to TIE Department.
4.1.25 Maintaining Leave Attendance Register of staff working under him.
4.1.26 Any other work in emergency entrusted by officers.
4.1.27 To arrange repairing of protection relays, instruments, AVRs, Auxiliary relay
from Manufacturer.
4.1.28 To carryout Current and Potential transformer testing in Receiving Sub-Stations.
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5.0
The Duties and Responsibilities of Foreman (T-7)
5.1
Duties and Responsibilities
Foreman is responsible to Foreman General for the following activities and for the jobs
mentioned under para D (3.0).
5.1.1
Repairs and testing of protective relays Receiving Sub-Stations.
5.1.2
Repairing and testing of AVR i.e. Automatic voltage Regulating relays in
Receiving Sub Stations.
5.1.3
CT and Trip coil testing of VCB/RMU in Distribution Workshop, Kussara.
5.1.4
To carryout Current and Potential transformer testing in Receiving Sub-Stations.
5.1.5
To maintain electrical/electronic items, tools kit & spares allotted for relay
testing.
5.1.6
Maintaining/ Up keeping equipments/instruments pertaining for relay testing.
5.1.7
Ensure that vehicle log book is maintained properly.
5.1.8
Submitting report of defective relays/equipments attended.
5.1.9
Any other work in emergency entrusted by officers.
5.1.10 If called, he shall report in shift duty.
5.1.11 Testing of relays in Receiving Sub Stations and carry out the adjustments to get
the required relay characteristic.
5.1.12 To carry out through testing of transformer and feeders in Receiving Sub Stations.
5.1.13 To carry out stability tests of transformer in Receiving Sub Stations.
5.1.14 To carry out the pre-commissioning tests in case of New/Re-modeling of
Receiving Stations.
5.1.15 To Assist Foreman General / Assistant Engineer to carry out Tripping
Investigation in Receiving Sub Stations.
5.1.16 To carry out activities as mentioned in Technical manual under para D (3.0).
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6.0
The Duties and Responsibilities of Assistant Foreman (T-6)
6.1
Duties and Responsibilities
The Assistant Foreman is responsible to Foreman for the following activities and for the
jobs mentioned under para D (3.0).
6.1.1
Assisting to Foreman to carry out outdoor/indoor repairing/overhauling of
protective relays/instruments, relay testing set etc.
6.1.2
Attending complaints pertaining to protection system.
6.1.3
Reporting distribution workshop for VCB/RMU testing.
6.1.4
Submitting reports of damaged/repaired relays/instruments etc.
6.1.5
Assisting to Foreman during site testing.
6.1.6
Cleaning of control panels, relays & feeder panels & its associated wiring in the
Receiving Sub Stations.
6.1.7
Assisting to Foreman General/Foreman/Nawghany for material shifting.
6.1.8
If called, he shall report in shift duty.
6.1.9
Any other work in emergency entrusted by officers/supervisor.
6.1.10 Routine inspection of Automatic Voltage Regulating Relay (AVR) & attending
AVR complaints.
6.1.11 Assisting to Foreman for CT & Trip coil testing of Distribution Sub-Station
Breaker in Distribution workshop, Kussara.
6.1.12 Assisting Foreman General/Foreman for Pre-commissioning tests at Receiving
Sub Stations.
6.1.13 Assisting Foreman General/Foreman for repair/replacement and testing of
protective relays.
6.1.14 Cash purchase of electronic/electrical items.
6.1.15 Submitting reports of damaged/repaired relays, AVRs etc. to Foreman General.
6.1.16 Any other job as and when instructed by officers/supervisors.
6.1.17 Assisting testing crew for loading/unloading relay testing equipments/instruments.
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7.0
The Duties of Nawghany:
7.1
Duties
7.1.1
Loading/unloading of relay testing & equipments safely.
7.1.2
Assisting testing crew while carrying out relay testing activity.
7.1.3
Cleaning the relay testing set/ instruments before carrying out testing.
7.1.4
He should take initiative for learning different activities carried out in the in
the
System Protection Department.
7.1.5
If called, he shall report in the shift duty.
7.1.6
If required, he should dispatch files/reports etc. to other departments.
7.1.7
To guard relay testing set/ instruments.
7.1.8
Cleaning of relay store room
7.1.9
To maintain his day to day diary.
7.1.10 Cleaning of vehicle.
7.1.11 Assisting Officers and Admin. Staff whenever needed.
7.1.12 Intimating to the officer/supervisor if any abnormality/accident occurred.
7.1.13 Cleaning of control/relay panel & feeder panels in the Receiving Sub-Stations.
7.1.14 Any other work as and when instructed by officers/supervisors.
8.0
M.V. Driver
He shall drive the undertaking‘s all type of vehicles.
9.0
Duties and Responsibilities of Administrative Officers and Staff of System
Protection Department
9.1
The Powers and Duties of Assistant Administrative Officer
Assistant administrative officer shall be responsible to Divisional Engineer System
Protection for establishment and administrative matters of the department.
9.1.1
To ensure proper maintenance of Staff Record Files
9.1.2
To ensure proper maintenance of the attendance registers
9.1.3
To ensure proper maintenance of the register for office equipment and furniture
9.1.4
Controlling budget grants
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9.1.5
To ensure proper maintenance of the filing system of the department
9.1.6
To ensure proper maintenance of the Imprest Cash account.
9.1.7
Complying with the provisions of various statutory Acts, viz. Factories Act,
Payment of Wages Act, Worker‘s Compensation Act, etc.
9.1.8
Complying with Standing Orders & Service regulation
9.1.9
To assist for preparing deputation allowance, cash advances & JE bills and
maintaining its register
9.1.10 To ensure proper maintenance of Incoming and outgoing papers record (dispatch
work)
9.1.11 Putting up notes for filling up vacancies and following them up.
9.1.12 Ensuring that staff records are maintained properly
9.1.13 Ensuring that the attendance sheets/registers are maintained and initiating cases
for taking action against the staff, having irregular attendance
9.1.14 Preparing the establishment schedule and Capital & Revenue budgets
9.1.15 Putting up sanction forms for purchase of dead stock and capital items and
maintaining the register up to date
9.1.16 Ensuring proper maintenance of filing system and ensuring that all the papers are
properly and correctly filed
9.1.17 Compiling administration reports
9.1.18 Ensuring that all procedure regarding administrative matters are properly
followed in accordance with the Service Regulations / Standing Orders
9.1.19 Supervision of clerical staff
9.1.20 Ensuring that all office records are properly maintained
9.1.21 Ensuring that outward bill memos are correctly prepared within a reasonable time
9.1.22 Ensuring that all returns with respect to Employment Exchange, statement of
performance, targets, monthly report of absenteeism, etc are sent in time
9.1.23 Controlling stationary items
9.1.24 Initiating and following up the cases for procurement of materials, timely issue of
monsoon apparels/ uniforms allowance and stitching allowance, diaries, etc.
16
9.1.25 Initiating notes pertaining to staff matters, such as filling up of post, creation /
abolition of post scholarships, advances, recovery statements, etc and
procurement of capital and dead stock items.
9.1.26 Monitoring timely submission of monthly statements.
9.2
The Duties of Clerk/Supervisor (P) :
The Clerk/Supervisor (P) is responsible to AAOSP for following duties & functions:
9.2.1
Preparation of monthly statements like tenders & Inspection Forms, pending
cases, VIP statements, etc.
9.2.2
Receiving and sending papers and files, etc.
9.2.3
Initiate various notes & letters regarding establishment and staff matters.
9.2.4
Releasing final bills follow up of Establishment proposals.
9.2.5
Putting up proposals for silver medal and wrist watch on BEST Day.
9.2.6
Issue of Uniform allowance, stitching charges and washing allowance advice etc.
9.2.7
Preparing payment advice for Field Duty, Hazardous and Distribution loss
Allowance/Overtime/Meal Allowance, casual labour payment etc.
9.2.8
Preparing Bill Vouchers towards the payment of Deputation, Medical
Reimbursement, Car Advance, etc.
9.2.9
Verification of Motor Driving Licence
9.2.10 Issue of Service Certificates and general certificates, Identification notes
9.2.11 Sending Monthly, quarterly, half yearly, yearly and occasional statements
regarding establishment matters to various departments.
9.2.12 Checking of various applications like P.F./Society Loan, Medical reimbursement,
Housing Loan Subsidy, Pension and application from Ex-employees children‘s
for employment, etc. for certification.
9.2.13 Filing of Staff Record papers.
9.2.14 Keeping Inward/Outward file movement, Tender & Inspection Forms, Overtime
& Purchase Forms
9.2.15 Compilation of files
9.2.16 Filing of all office file papers
17
9.2.17 Initiating Brief-case proposals and maintaining its register
9.2.18 Work regarding payment of Scholarship
9.2.19 Any other work entrusted by AAOSP
9.3
The Duties of Shop-Recorder/Supervisor (P):
The Shop-Recorder/Supervisor (P) is responsible to AAOSP for following duties &
functions:
9.3.1
Attending Administration queries
9.3.2
Initiating proposals like procurement of any material etc.
9.3.3
Maintaining Inventory & related works
9.3.4
To send monthly absentee memos of officers
9.3.5
To send monthly absentee reports
9.3.6
Keeping Imprest cash and maintaining its registers, bills of purchase through
Imprest cash etc.
9.3.7
Follow up of Stores proposals of System Protection Departments
9.3.8
Procurement of material which is a non-stock items
9.3.9
Collecting information for System Protection Department
9.3.10 Sending Work Requisition regarding complaints for civil work and its follow up
9.3.11 Procuring stationary
9.3.12 Assisting AAOSP in preparing Revenue & Capital Budgets
9.3.13 Motor Vehicle Statement and related work
9.3.14 Initiating Purchase Forms and keeping Sanction Forms Register
9.3.15 Preparation of outward Bill Memos and related work
9.3.16 Maintaining attendance, leave record and Keeping LTA records of all staff of the
department
9.3.17 Producing leave record for promotion assessment, silver medals etc.
9.3.18 Preparing absentee memo of ‗A‘ & ‗B‘ grade officers
9.3.19 Preparing daily e-job sheet of casual labours and staff.
9.3.20 Preparing payment advice for Field Duty, Hazardous and Distribution loss
Allowance/Overtime/Meal Allowance, casual labour payment etc.
9.3.21 Preparing bill voucher for payment of hiring charges of vehicle.
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9.3.22 Maintaining attendance of Graduate Apprentice / Trainee Apprentice and
forwarding their progress report to DETIE
9.3.23 Filing of all papers of System Protection Departments in their respective files
9.3.24 Any other work entrusted by AAOSP.
9.4
Sepoy :
The sepoys will carry out following duties and functions:
9.4.1
Receiving papers, files etc. from various departments/ sections / staff and
forwarding the same to the concerned department/sections/ staff on getting
acknowledgment, whenever it is necessary.
9.4.2
Forwarding dispatch to various offices of the Undertaking and other private
parties whenever required and also collecting the same back from those offices.
9.4.3
To deliver Undertaking‘s letter / Memo at the residence of employees and officers
9.4.4
Collecting the keys of the department to open the department in the morning and
depositing the same to Security post after closing the department in the evening.
9.4.5
To open the department‘s doors, windows in the morning, to clean the tables &
chairs of the staff and closing the same in the evening
9.4.6
To attend bell of cabins and calls of the staff
9.4.7
To make arrangements of tea/coffee
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4.(b)(iii)} i) The procedure followed in the decision making process
including channels of supervision and accountability in
case of technical activities
Sr.
No.
1
1.1
1.2
1.3
Decision Making Process
Commissioning of new RSS & Replacement jobs in
existing RSS
Derive relay setting for New RSS & replacement
job
Writing a nameplates of switchgears, Breakers,
Current Transformers, Potential Transformers,
CARPs and Power Transformers in rough book &
Fair Book
Drawing of CT & PT circuits in rough book & Fair
Book
Channels of
Supervision
Accountability
SSP/DESP
AESP
SSP/DESP
AESP
Charge Engineer /
Foreman General
Foreman / Asst
Foreman
AESP
Foreman
1.4
Testing of Current Transformers by Omicron make
CT Analyser
AESP
1.5
Testing of Potential Transformer
AESP
1.6
Setting & testing of relays
AESP
1.7
Testing of Tap-Change Control Relays
1.8
Tightening of all connections
1.9
Through testing from CT end as per testing sheet
Charge Engineer /
Foreman General
Charge Engineer /
Foreman General
AESP
1.10 RD & REF Stability Testing as per testing sheet
AESP
Confirmation for tripping of HV Breakers on
different protection and transformer commands
AESP
1.11
1.12 Prepare a Fair book for each job
AESP
Log a message for completion of work at
Supervisory/System Control
Logging of message from control in the logbook
1.14
provided in the dept.
1.13
Sr.
No.
Decision Making Process
1.15
Co-ordination of System Protection Dept. and
SCADA (T&E Dept.) for SCADA job
20
AESP/SSP
AESP/SSP/DESP
Charge Engineer /
Foreman General,
AESP
Charge Engineer/
Foreman General
Charge Engineer/
Foreman General
Foreman/Asst.
Foreman
Foreman/Asst.
Foreman
Charge Engineer/
Foreman General
Charge Engineer/
Foreman General
Charge Engineer/
Foreman General
Charge Engineer/
Foreman General
Charge Engineer /
Foreman General
Charge Engineer /
Foreman General
Channels of
Supervision
Accountability
AESP/SSP/DESP
Charge Engineer /
Foreman General
Co-ordination of System Protection Dept. with
1.16 various O&M Divisions for outages for Routine
Testing jobs & Tripping Investigation.
AESP/SSP/DESP
Charge Engineer /
Foreman General
AESP/SSP
Charge Engineer /
Foreman General
Charge Engineer /
Foreman General
Foreman
2.0
Routine relay testing of Transformer
3.0
Routine relay testing of Feeder
4.0
OCB overhauling
Foreman
5.0
AVR inspection and overhauling
Foreman
6.0
Tripping Investigation
7.0
Replacement of Defective relays, CTs & PTs
AESP/SSP/DESP
AESP
To mark attendance of staff and their booking for
outdoor and indoor activity
Arrangement of vehicle, Transportation of Material
9.0
& Tools.
Procurement Tools & Equipments for carrying out
10.0
Routine Activities
Repairing & Scrapping of Tools, Equipments,
11.0
Relays
Comments on Specifications, Drawings of
12.0
Equipments for DSS & RSS
The overall in-charge and accountability is with DESP
8.0
AESP
AESP/SSP
Foreman/ Asst.
Foreman
Foreman/ Asst.
Foreman
Charge Engineer /
Foreman General
Charge Engineer /
Foreman General
Charge Engineer /
Foreman General
Charge Engineer /
Foreman General
AESP/SSP
AESP
AESP/SSP
Charge Engineer /
Foreman General
AESP/SSP/DESP
AESP
ii) The procedure followed in the decision making process including
channels of supervision and accountability in case of
administrative activities
Sr.
No.
Decision Making Process
1
As regards to the various administrative functions
carried out by the administrative staff as mentioned
in duties and responsibilities of the administrative
staff, the administrative work is carried out as per
the set procedure /policies/ guidelines issued and
approved by management vide various circulars,
Administrative Order, Procedure Order, S.R. & S.O.
etc.
21
Channels of
Supervision
Accountability
AAOSP/DESP
The concerned
administrative staff
initiating the work during
the course of duty.
TECHNICAL MANUAL AND WORK PROCEDURES
a)
TERMINOLOGY
1.0
Protective System: is a team of protection relays, circuit breakers, CT‘s, PT‘s,
Secondary control cables, trip circuit, battery system accessories etc.A combination of
protective gear designed to secure under predetermined conditions, usually abnormal, the
disconnection of an element of a power system, or to give an alarm signal or both.
2.0
Protective Scheme: The co-ordination arrangement for the protection of one or more
elements of power system.
3.0
Protective Relay: A relay is designed to initiate disconnection of a part of an electrical
installation or to operate a warning signal, in case of a fault or other abnormal condition
in the installation. A device designed to produce sudden pre-determined changes in one
or more electrical circuits after the appearance of certain conditions in the electrical
circuit controlling it.
3.1
Relays are compact analog, digital and numerical devices that are connected throughout
the power system to detect intolerable or unwanted conditions within an assigned area
such that to maintain a high degree of service continuity and limit the equipment damage.
4.0
Protected Zone: A portion of a power system protected by a given protection system or a
part of that protective system.
5.0
Main Protection: Protection normally expected to take the initiative in case of a fault in
the protection zone.
6.0
Back up Protection: Protection provided to act as substitute for the main protection in
the event of failure or inability of the latter.
22
6.1
Relay Back-up: An arrangement, which provides an additional relay using the
same or alternate principle of operation from that of the main relay (It is
preferable to have separate C.T. and if necessary separate P.T. for relay backup)
6.2
Circuit Breaker Back-up: An arrangement at the next which provides isolation
from source when circuit breaker nearest to fault fails to open or in case there is
failure of the secondary current or voltage. (It is usually of a time delay relay
operated from the main protection and connected to trip all the incoming feeders.)
6.3
Remote Back-up: An arrangement at the next station in the direction towards
source, which trips after a delayed time if the circuit breaker in the faulty section
is not tripped.
7.0
Instantaneous Relay: A relay, which operates and resets with no intentional time delay.
8.0
IDMT Inverse Definite minimum time relay: An inverse time relay having an
operating time that tends towards a minimum definite value with increase in electrical
characteristic quantities.
9.0
Setting: The limiting value of a characteristic or energizing quantity at which the relay is
designed to operate under specified conditions.
9.1
Plug Setting Multiplier (PSM): A range of current setting for varying the relay
operating current provided in the relay.
9.2
Time Setting Multiplier (TMS): A means of adjusting the travel of the disk and
thereby varying the time of operation of the relay for a given value of the fault
current.
9.3
Pick-Up (PU): A relay is said to pick-up when it changes from the unenergized
position to the energized position.
9.4
Drop Out: A relay drop out when it moves from energized position to
unenergized position.
23
10.0
Burden: The loading imposed by the circuits of the relay on the energized power source
or sources, expressed as the product of voltage and current (Volt –amperes or Watts if
PC) for a given condition which may be either at setting or at rated current or voltage.
11.0
Characteristic Curve: The curve showing the operating value of the characteristic
quantity corresponding to various values or combinations of the energizing quantities.
12.0
Residual Current: The algebraic sum of all the currents in a system is Residual Current.
13.0
Residual Voltage: The algebraic sum of all the phase to earth voltages in a system is
Residual Voltage.
14.0
Knee Point Voltage: The sinusoidal voltage of rated frequency applied to secondary
terminals of a current transformer, all other winding being open circulated, which when
increased by 10% Causes the exciting current to increase by 50%.
b)
PRINCIPLE OF PROTECTIVE SYSTEM
Every electrical equipment is designed to work under specified normal conditions. In
case of short circuits, earth faults etc. an excessive current will flow the windings of the
connected equipment and cause abnormal temperature rise, which will damage the
winding. Further it may cause total shunt down of unit, which will result in heavy loss of
revenue.
A fault in electrical equipment is defined as a defect in its electric circuit due to which
flow of current is diverted from the intended path. Faults are caused by breaking of
conductors or failure of insulation.
Fault impedance is generally low and fault currents are generally high. During the faults,
the voltages of three phases become unbalanced and the supply to the neighboring circuit
is affected. Fault currents being excessive, they can damage not only faulty equipment
but also the installation through which the fault current flows.
There are several causes of faults occurring in a particular electrical system. Faults can be
minimized by improved system design, improved quality of equipment, better and
adequate protective system, better operation and maintenance etc. however, fault cannot
be eliminated.
24
c)
FUNCTIONS OF PROTECTIVE SYSTEM
1)
To sound an alarm, so that the operator may take some corrective action.
2)
To close the trip circuit of circuit breaker so as to disconnect a faulty component
during an abnormal fault condition such as overload, under voltage, temperature
rise, unbalanced load, reverse power, under frequency, short circuit etc.
3)
To disconnect the faulty parts as quickly as possible as to minimize the damage to
the faulty part and to prevent subsequent faults.
4)
To localize the effect of fault by disconnecting the faulty part from healthy parts
causing least disturbances to the healthy system (to improve the system stability
and service continuity.
d)
REQUIREMENT OF PROTECTIVE SYSTEM
Protective system should have following qualities
1.0
Selectivity: The protective system should discriminate between abnormal and normal
conditions. It is ability of protective system to determine the point at which the fault
occurred and should isolate the only faulty portion from remaining healthy system to
minimize or no damage to system.
2.0
Speed: Protective system should disconnect a faulty element as quickly as possible, in
order to improve power system stability, minimize the damage and to increase the
possibility of second type of fault development.
Fault Clearing Time = Relay Time + Breaker Time
= Fault Instant (Relay Pick Up) to Closing of relay contact
+ Closing of relay contacts to Final breaker OFF.
The relay time of fast relay is in order of few cycles. Modern protective relay has
operating time of about 1 cycle. For Inverse Definite Minimum Time (IDMT) relays,
relay time can be adjusted between 6 seconds to 60 seconds.
3.0
Sensitivity: It is capability of relay to operate reliably under the actual minimum fault
condition. It is desirable to have the protection as sensitive as possible in order that it
shall operate for low value of actuating quantity.
25
4.0
Stability: It is quality of protective system so that it remains inoperative and stable for
fault beyond the protective zone.
5.0
Reliability: The protective system should not fail to operate in event of faults in
protected zone. Also there should not be component failure of protective system.
6.0
Adequateness: Protection provided for any equipment should be adequate.
e)
RELAY CLASSIFICATION:
1) Protection Relays: which detects defective lines, defective apparatus or other
dangerous conditions on Power system and gives commend to trip one or more
breakers which desired to operate. e.g. O/C, E/F, U/V etc.
2) Auxiliary Relays: This operates in response to operation of parent relays e.g. Master
Trip relay.
3) Monitoring Relays: Which verify the conditions on power system or in protection
system e.g. Trip supervision relay.
4) Regulating Relays: Which are activated when an operating parameter devices from
pre-determined limits e.g. AVR relay.
f)
Classification of Relays according to operating Input quantity:
1.0
Relays operate when quantity rises / drops above/below a specified value.
1.1
Current operated relay : O/C for Overload, E/F for Earth fault
1.2
Voltage operated relay: U/V,O/V
1.3
Power operated relay: Directional relay or Reverse power relays
1.4
Pressure operated Relay: PRV
1.5
Frequency operated relay: U/F, O/F, df/dt
1.6
Temperature operated relay: OTI,WTI
26
g)
Classification of Relays according to operating time:
1.
Instantaneous relay: operate in negligibly time interval
2.
Definite time lag relay: operate after set time lag
3.
Inverse Definite Minimum Time (IDMT) relay: operate as per characteristic curve
selected.
TYPICAL CHARASTERISTIC CURVE FOR RELAY
Formula for time of operation of IDMT relays
3 sec Normal Inverse:
1.3 sec Normal Inverse:
0.6 sec Normal Inverse:
Very Inverse:
Extreme Inverse:
= (0.14 x TMS) / {(If/In) 0.02 - 1}
= (0.06 x TMS) / {(If/In) 0.02 - 1}
= (0.028 x TMS) / {(If/In) 0.02 - 1}
= (13.5 x TMS) / {(If/In) 1 - 1}
= (80 x TMS) / {(If/In) 2 - 1}
h)
Classification of Relays according to performance category:
1.
Directional relay
2.
Distance relay
3.
Differential relay
i)
Classification of Relays according to operating principle:
1.0
Electromechanical relay
2.0
Static/Solid state relay
3.0
Microprocessor/numerical relay
1.0
Electromechanical Relay:
An electrical relay in which the designed response is developed by the relative movement
elements under the action of a current or voltage input circuit.
27
2.0
Static/Solid State Relay:
Static relays are those in which the measured AC quantities are manipulated in analog
form and converted in to binary voltages. Logic circuits or microprocessor compare the
phase relationships of binary form to make a trip decision.
3.0
Numeric Relay:
Numeric relays are those in which the measured AC quantities are sequentially sampled
and converted in to numeric data form. A microprocessor performs mathematical and
logical operations on the data to make a trip decision.
Electromechanical
I
Microprocessor
I0
Static
I
Comparator
0/1
I
A
D
C
Memory
CPU
0/1
I0
Examples of Relay Panels
MicroprocessorBased Relay
Old Electromechanical
The Numerical relay have data acquisition capabilities and provide useful service data
such as load current, fault current and others parameters, historic data, fault data. These
relays have programmable settings, programmable input and output relay contact and
continuous self-monitoring against any internal failures.
28
Advantages of Digital Relays
Multifunctional
Compatibility with
digital integrated
systems
Low maintenance
(self-supervision)
Highly sensitive,
secure, and
selective
Adaptive
Highly reliable
(self-supervision)
Reduced burden
on
CTs and VTs
Programmable
Versatile
Low Cost
Standard device numbers for relay as per ANSI Code:
2
:Timer relay
27
: U/V relay
59
: O/V relay
59N
: Neutral displacement relay
50
: Instantaneous O/C relay
51
: I.D.M.T O/c relay
50N
: Instantaneous E/F relay
51N
: I.D.M.T. E/F relay
67
: Directional O/C relay
67N
: Directional E/F relay
64R
: Restricted E/F relay
64S
: Standby E/F relay
87
: Differential relay
49
: Thermal O/L relay
63
: Transformer Aux Faults (Oil temp, Winding Temp, buchholz, OSR, PRD)
52
: Circuit breaker
52a
: Circuit breaker No contact
52b
: Circuit breaker NC contact
86
: Master trip/ Inter trip relay
25
: Synchro Check relay
95
: Trip circuit supervision relay
29
j)
Procedural Work:
1.0
Overview
1.1
PROTECTION SYSTEM OF THE B.E.S.T. NETWORK
The BEST Undertaking, on behalf of the BRIHAN MUMBAI MAHANAGARPALIKA
is the licensees for distribution of electric power within the City limits of MUMBAI.
Bulk power at 110 / 33 / 22 kV voltage levels is transmitted from TPC‘s five main
receiving stations at Carnac, Parel, Dharavi, Mahalaxmi and Backbay through
underground cables to BEST's 54 nos receiving sub stations in BEST System. These are
bifurcated into 5 zones namely North West, North East, Central North Zone, Central
South and South Zones for operational convenience.
110 kV RSS – 4 Nos -
Khetwadi (CS), DBA RSS (CN),
Nariman Point (S) & Backbay RSS (S)
33kV HT Room – 4 Nos -
Jalan Mill (CN), Penninsula (Dawn Mill) (NW),
Futurex Marathon(CN) & VSNL (NW).
33kV kV DSS – 1 Nos –
Morarji Mill (NE)
33kV – 22kV / 11kV – 6.6 kV RSS – 45 Nos –
North East Zone –
Sion Fort, Wadala, Raoli Hill, Kingsway, KEM Hospital,
Sewree, Swan Mill RSS
North West Zone –
Dharavi, PMGP, Mahim Causeway, Mahim, Prabhadevi,
Nestle, Worli, Shitaladevi, Standard Mill RSS
Central North Zone –
Mahalaxmi, Pochkhanwala, Parel, Kussara, Mazgoan
Dock, Byculla, Tardeo, Mumbai Central, Nair Hospital,
Lovegroove, Lalbaug, Worli Dairy RSS
Central South Zone –
Esplanade, Mumbadevi, Girgaum,Neapean Sea, Nimkar
Marg, Malabar Hill, Masjid, J J Hospital, Grant Road
South Zone –
Navy Nagar, Colaba, G T Hospital, Marine Drive, Apollo,
Hutatma Chowk, Naval Dock, Ballard Estate
30
The BEST Undertaking has installed 100 MVA (110/33kV, YnYn0), 45 MVA (110/1111kV, YnZn11), 16-20 MVA (33/11kV, Dyn1), 16 MVA (33/11kV, Dyn1), 10 MVA
(22/11-6.6 kV, Dyn1) and 3.2 MVA (33kV/415-415Volts, DZn0Zn0) power transformers
with neutral star point solidly earthed. The power transformers are provided with OLTC
gear to regulate and maintain the 6.6 kV or 11kV voltages fairly constant. The typical
single line diagram of RSS is as below
Protection gear comprises of current & potential transformers, relays inter-connecting
wiring, contractors, trip coils etc. Control & Trip circuit of switchgears at 110KV / 33KV
/ 22KV Receiving Sub Stations operate on 110VDC supply. The method of tripping used
is shunt tripping i.e. trip coil is operated separately by 110VDC supply in Receiving
Stations
CIRCUIT BREAKER
CT‘S
R PHASE
Y PHASE
B PHASE
TRIP
COIL
O/C,
Inst
o/c
RELAY
CONTAC
T
E/F,
Inst
E/F
31
110 VDC
The relays current setting and time setting are based on either Definite Minimum Time (DMT)
principle or Inverse Definite Minimum Time (IDMT) depending on the type of relays used.
T
i
m
e
i
n
m
s
e
c
Current
1.1.1 PROTECTION IN RECEIVING SUBSTATION
At 110kV RSS level, we have adopted following types of protections
a)
On HV side of Transformer –Dir & Non Dir O/C & E/F, U/V, O/V.
b)
On LV side of Transformer –Dir & Non Dir O/C & E/F, U/V, O/V
c)
For Transformer protection – Ratio Differential protection HV
HV Restricted Earth Fault (REF) protection
LV Restricted Earth Fault (REF) protection
Buchholz Relay
Pressure Release Device (PRD)
Oil Surge Relay (OSR)
OTI & WTI Trip
d)
For Outgoing Feeder –
Non Dir O/C & E/F
At 33kV & 22kV RSS level, we have adopted following types of protections
a)
b)
c)
On HV side of Transformer – Non Dir E/F, Non Dir O/C, U/V, O/V.
On LV side of Transformer – Non Dir E/F, Non Dir O/C, U/V, O/V
For Transformer protection – Ratio Differential protection
LV Restricted Earth Fault (REF) protection
Buchholz Relay
Pressure Release Device (PRD)
Oil Surge Relay (OSR).
d)
For Outgoing Feeder –
Non Dir E/F, Non Dir O/C
e)
For Capacitor Feeder –
Non Dir E/F, Non Dir O/C, U/V, O/V, NDR
32
1.1.2 PROTECTION IN DISTRIBUTION SUBSTATION
Further, it is step down to 11-6.6 kV voltage levels by distribution transformers
11kV/415 Volts at DSS. 11kV network is connected in ring but operated in radials.
At DSS level, OCB/VCB of outgoing feeder has combined overload protection for
Overload on R & B Phase and earth fault on neutral circuit. OCB/VCB of transformer
feeder has combined overload protection for Overload on R & B Phase but earth fault
protection is kept without T/L fuse on neutral circuit for instantaneous Earth fault.
The method of tripping in DSS is ―Series tripping‖ i.e. the trip coils are operated directly
by CT‘s current. DSS breakers are normally provided with two O/L trip coils in R & B
phase and one earth fault trip coil in return neutral of three star connected CT‘s secondary
circuit. The time lag (T/L) fuses are connected across these trip coils, O/L trip coil and
earth trip coils are of size of 5 amps and 2 amps respectively.
Due to overload or short circuit or earth fault in network, 5 Amps / 2 Amps or more
current flows through the T.L. fuses of overload trip coil / E/F trip coil respectively. TL
fuse blows and current starts flowing through O/L / E/F trip coil which causes tripping of
circuit breaker.
SERIES TRIPPING IN DSS OUTGOING FEEDER SWITCHGEAR
R PHASE
Y PHASE
PHPHASEP
B PHASE
HASE
CIRCUIT
BREAKER
O/L
TRI
P
COI
L
O/L
TRIP
COIL
33
E/F
TRIP
COI
L
T/L
FUSE
(2A)
T/L
FUSE
(5A)
1.1.3 PROTECTION IN LV NETWORK
Transformer secondary is connected to LV bus bar through copper links and transformer
breaker protects HV side of transformer.
Distributors are provided with 315 Amps HRC fuses at LV boards and LV pillars which
provide protections against faults on distributors.
At service position, 400A / 200A fuse base are provided with 400A and 200A HRC
fuses. At large LV installations, switch fuse unit of appropriate size is provided.
Re-wirable fuses in branch cutouts of 100A, 63A, 32A, 16A are provided at branches
feedings meters. These branch cutouts are provided on Meter Boards to protect the meter
against fault in the consumer‘s installation.
1.1.4 PROTECTION OF 33kV/22kV CABLES:
a) UNDER VOLTAGE RELAY :
Any fault occurring on 33KV/22KV cable operates protection gear at TATA‘s Receiving
Stations. When 33KV/22KV supply fails we get the indication at the Receiving Station
and Supervisory/ System Control Room. At Receiving Station, we are having under
voltage relay which gives indication of supply failure on 33KV/22KV side.
b) DIRECTIONAL OVER CURRENT & EARTH FAULT RELAY :
Normally B.E.S.T. network is radial right from Tata‘s transformer up to LV network.
But, when carrying out operation for load transfer, we keep power transformers in
parallel either of the same Receiving Station or of different Receiving Stations. In the
said circumstances if a fault occurs on 33kV / 22kV cable, then the affected bus section
will be reverse fed by other power transformer (after switchgear at the TATA‘s
Receiving Station has tripped). To avoid this, we use Directional over current and earth
fault relay, which operates (indicating power flow is reverse i.e. from 11kV to 22/33 kV
side). This protection scheme is typically employed on110kV & 33kV sides in 110kV
RSS.
34
Directional Overcurrent Protection
Basic Principle
I
V
F1
F2
Relay
Reverse Fault (F2)
Forward Fault (F1)
I
V
V
I
1.1.5 PROTECTION OF POWER TRANSFORMERS:
a) OVER CURRENT AND EARTH FAULT RELAY (O/C+E/F):
Three-Phase Diagram of the Protection Team
CB
CTs
Protected
Equipment
Control
Relay
VTs
Transformer is protected by Non Directional IDMT & Instantaneous type 3-phase over
current and Earth fault relay on 33KV/ 22KV side and by Non Directional IDMT type 3phase over current and Earth fault relay on 11KV side.
35
b) RESTRICTED EARTH FAULT RELAY : (REF RELAY)
Restricted Earth Fault (REF) Relay operates on the Merz-Price Circulation current
principle with CTs of identical ratio and ratings in LV CT and NCT. This relay operates
only when fault occurs between secondary of the power transformer up to 11KV bus bar
and neutral of transformer which is protection zone for REF relay. The relay is connected
across the parallel combination of CTs in High Impedance mode.
a. DIFFERENETIAL RELAY
Differential Protection Principle
CTR
CTR
Protected
Equipment
Internal
Fault
87
IDIF > ISETTING
Relay Operates
36
Differential relay is used to detect any internal fault on HV or LV winding of the
transformer. This relay operates on the Merz-Price Circulation current principle. As long
as there is no fault in the transformer then current on 33kV / 22kV and 11kV side is the
same. So there is no current in the differential relay.
Due to fault in the transformer (Internal Faults), there is an imbalance between primary
current and secondary current, which operates the relay. Thereby, cause tripping of 33 kV
/ 22 kV and 11 kV breakers to isolate power transformer.
Protection gear of differential relay is designed with due care of No load current, Inherent
phase shift in winding of transformers and Change of turns and so current ratio due to
OLTC operations.
During External Faults: when there is external fault in network of transformer, fault
current flows in both HV as well as LV side CT‘s causing resulting zero current in
operating coil of differential relay.
37
c)
BUCHHOLZ RELAY :
Buchholz relay is fitted between the transformer main tank and conservator. If any fault
e.g. core bolt insulation failure, short circuit in laminations, loss of oil due to heavy
leakage occurs in the HV or LV winding of transformer resulting in local heating of oil
and gas formation, then these gases is trapped in the Buchholz relay. It cause operation of
upper float and gives an alarm, which give some idea of nature of fault.
If serious nature of fault inside the transformer due to short circuit between phases,
winding earth faults, bushing failure it operate both floats provided in buchholz relay and
gives the trip command to primary & secondary breakers of transformer.
d)
PRESSURE RELEASE DEVICE : (PRD)
This device operates during excessive pressure developed in the transformer main tank
due to internal fault occurred in it & it will give the direct tripping command to primary
& secondary circuit breakers.
e)
OIL SURGE RELAY : ( OSR)
This relay is fitted between the OLTC & Conservator. If any fault occurs in the OLTC of
transformers resulting in local heating of oil and gas formation, then these gases is
38
trapped in the OSR & it will give the direct tripping command to primary & secondary
circuit breakers.
Trip commands of Buchholz relay, PRD and OSR are wired up through Ratio Differential
relay to get disturbance recordings at time of fault.
i. DIFFERENT TRANSFORMER PROTECTION
Fault Type
1.2
Needed Protection
Phase-Phase faults
Differential, Over current
Phase-Earth faults
Differential, Earth Fault, Restricted Earth Fault
Inter-turn Faults
Differential, Buchholz
Core Faults
Differential, Buchholz
Tank Faults
Differential, Buchholz, Tank Earth Fault
Over Heating
Thermal Overload
INSTRUMENT TRANSFORMERS
The magnitude of current and voltage in a power system are usually too high to be
handled by the secondary equipments like measuring instruments and relays, control
circuits. Therefore, the instruments produce a scaled down replica of the primary input
quantities within the accuracy. The measuring instruments and protective relays are
connected in secondary circuit of instrument i.e. current and voltage transformers.
1.3
CURRENT TRANSFORMERS (CT)
Primary current is not controlled by condition of secondary circuit in current transformer.
Hence, primary current is dominant factors in the operation of current transformer. The
performance requirements of the instrument transformers depend upon their applications.
CTs classified into three basic types.
39
a) Measuring Current Transformer: Measuring Current transformers used for
measurement handle steady current closed to rated values. Ammeters, Energy Meters etc
are connected in measuring CT circuit.
Measuring CTs are specified in term of Accuracy Class, rated VA Burden and Instrument
Safety Factor (ISF).
Instrument Safety Factor:
It is the ratio of instrument limit primary current to the rated primary current. Instrument
limit current of a metering current transformer is a maximum value of primary beyond
which current transformer core becomes saturated.
Accuracy Class –0.1, 0.2, 0.5S, 0.5, 1, 3
VA Burden – 5, 10, 15, 30
ISF – 5, 10
For metering core, we have adopted 0.5 class for outgoing feeders and 0.5S for HV & LV
side CTs with ISF = 5.
b) Protection Current transformers: Protection current transformers used for protection
handle fault quantities in multiple of rated values. Protection relays, trip are connected in
protection CT circuit. Current transformers step down current high value to low value.
Protection CTs are specified in term of Class, rated VA Burden and Accuracy Limit
Factor (ALF). Standard errors are specified at rated current and ALF times rated current
with rated burden connected. For given CT, VA and ALF are inversely related. If
connected burden is less than rated, ALF would increase.
Standard Error Class - 5P, 10P, 15P
ALF - 5, 10, 15, 20, 30
VA Burden – 5, 10, 15, 30
For protection core, we have adopted 5P20 class, 15 VAfor outgoing feeders, HV & LV
side CTs. This means that CT will have a Composite Error (difference between Ideal Sec
40
current and actual sec current) of +/- 5% at 20 times rated current and a ratio error of +/1% at rated current with rated connected burden of 15VA.
c) Protection CTs for Special Application: For balanced protections like Differential,
REF, where balance is required between the associated CTs with close tolerance.
For such applications, CTs of class PS are used which are specified in term of Knee Point
voltage (Vk), Magnetising current (Im) at Vk and at Vk/2, CT secondary resistance (Rct).
For class PS CTs, the turn ratio errors are limited to 0.25% which helps in maintaining
balance between the protection systems during the fault condition.
Specification / Name plate of PS class core:
CT ratio = 300/5
Vk>= = 104 Volts
Im at Vk/2 = 50 mA
RCT at 750C = 0.3 ohm
Magnetizing Characteristic of CT: the magnetizing characteristic of a CT is a plot
between secondary applied voltage the corresponding magnetizing current taken by the
CT.The excitation curve can be divided into Ankle point, linear region, Knee point and
saturation.
The knee point is defined as a point on the excitation curve where a 10% increase in the
secondary voltage would cause 50% increase in exciting current.
Saturation
Knee Point
Voltage
Exciting voltage
Knee Point
Ankle Point
41
Exciting current
1.4
EFFECTS OF SECONDARY OPEN CIRCUIT:
The primary current of CT is independent of its secondary loading. With shorted
secondary (directly or through the connected burden), the counter flux produced by the
secondary keeps the core flux below the saturation level.
Load current in electrical system always flows through CT primary. If the secondary gets
open circuited with the primary carrying current, the entire primary current will behave as
excitation current and is spent in magnetizing the core, producing high core flux. This
results in increased secondary voltage. This develops extremely high pulses of voltage
which may not be measured by voltmeter. But this voltage may breakdown the CT
insulation and may cause accident to personnel. That is why CT secondary should not
be kept open and should always be shorted.
1.5
CURRENT TRANSFORMER DETAILS:
We are using different types of CTs in systems from 110kV to 11kV voltage level. CTs
are specified for Insulation level, rated primary current and Short Circuit Withstand
current.
Service Voltage: System Voltage in which CT is to be installed e.g. 11kV, 22kV, 33kV
and 110kV etc.
Rated primary current: It is value of rated current of equipment at CT location which CT
should carry continuously.
Rated Secondary current: Rated secondary current is specified as 1A or 5A. It is preferred
to use 5A as secondary current for indoor panels where internal wiring length is short and
1A where wiring length i.e. control cable length is long. It is value of rated current of
equipment at CT location which CT should carry continuously.
Short Time Withstand Current: It is maximum fault current value which CT can
withstand for short time rated. A current transformer is overloaded while system short
circuit currents are flowing and will be short-time rated. Normally system fault current is
considered as value of STC even though real fault current is less.
42
Standard times for which the CT must be able to carry rated short-time current (STC) are
0.25, 0.5, 1.0, 2.0 or 3.0 seconds. Specified values for STC are 18.4 KA for 3 Sec for
11kV CT and 26.3KA for 3 Sec for 33 kV CT.
1.6
CURRENT TRANSFORMER TESTING
CT is tested for Ratio, Polarity and Knee Point Voltage. Earlier CT testing is carried out
by Conventional method i.e. using primary injection set, dimmer, energy meter, voltmeter
and ammeter. This method involves typical connection of many conventional instruments
and manual calculations.
Recently, Omicron make CT Analyser set was purchased. Voltage and current is injected
from secondary side of CT. Values of current and voltage is sensed at Primary and
secondary terminals of CT. Final results are derived from these values in CT Analyser.
1.6.1 CT RATIO AND POLARITY TEST:
1.6.2 CT KNEE POINT VOLTAGE TEST:
43
1.7
POTENTIAL TRANSFORMERS (PT)
Whenever the values of voltage in a power circuit are too high to permit convenient
direct connection of measuring instruments or relays, coupling is made through voltage
transformers. Voltage transformers are much like small power transformers, differing
only in details of design that control ratio accuracy over the specified range of output.
The performance requirements of the instrument transformers depend upon their
applications. PTs classified into three basic types.
a) Measuring Voltage Transformer: Measuring VTs used for measurement handle steady
voltages closed to rated values. Voltmeters, Energy Meters etc are connected in
measuring VT circuit.
Measuring VTs are specified in term of Voltage Ratio, Accuracy Class, Rated VA
Burden and Rated Voltage Factor.
Accuracy Class –0.1, 0.2, 0.5, 1, 3
VA Burden – 5, 10, 15, 30
Voltage factors, with the permissible duration of the maximum voltage is 1.2 continuous
& 1.5 for 30 sec between line and earth in an effectively earthed network.
Rated Voltage Factor (Vf): The voltage factor (Vf) is an upper limit of operating voltage,
expressed in per unit of rated voltage. This is important for correct relay operation and
operation under unbalanced fault conditions on unearthed or impedance earthed systems,
resulting in a rise in the voltage on the healthy phases.
For metering core, we have adopted 0.5 class for HV & LV side VTs with Voltage factor
= 1.2 continuous & 1.5 for 30 sec. This means that VT will have a % Ratio Error of +/0.5% at 80% to 120% of rated voltage with rated connected burden of 50VA.
Protection Voltage transformers: Protection VTs used for protection to handle fault
quantities in multiple of rated values. Protection relays are connected in protection VT
circuit. VTs step down high voltage value to low voltage value.
44
For protection purposes, accuracy of voltage measurement may be important during fault
conditions, as the system voltage might be reduced by the fault to a low value.
Protection VTs are specified in term of Voltage Ratio, Accuracy Class, Rated VA Burden
and Rated Voltage Factor.
Accuracy Class –3P, 6P
VA Burden – 5, 10, 15, 30
Voltage factors, with the permissible duration of the maximum voltage is 1.2 continuous
& 1.5 for 30 sec between line and earth in an effectively earthed network.
For protection core, we have adopted 3P class, 50 VA for HV & LV side VTs. This
means that VT will have a % Ratio Error of +/- 3% at 5% to 1.2 times rated voltage with
rated connected burden of 50VA.
1.8
CAPACITOR BANK PROTECTION
1.8.1 Under-Voltage protection:
During power failure, it is essential that capacitor bank should trip and should not be reenergized till it discharges to safe value of 50 Volts or less. This is reason for providing 5
minutes delays for capacitor feeder in closing circuit when capacitor switched OFF or
Tripped.
This relay should be instantaneous type with low voltage setting. Voltage setting value is
decided to 80% of normal voltage.
1.8.2 Over-Voltage protection:
Over voltage protection is provided for tripping capacitor bank when system voltage
exceeds the maximum permissible voltage i.e. 110% of the rated voltage. This relay
should be instantaneous type.
1.8.3 Neutral Displacement Protection:
This type of protection is required I case of a single star connected capacitor bank.
Primary winding of the Residual Voltage Transformer (RVT) is connected in Delta to
45
capacitor bank and the secondary winding of RVT is connected in open delta. Two
secondary terminals of RVT are wired up to NDR relay.
Under balanced condition of the capacitor bank, voltage across the open delta terminals is
almost Zero. But in event of failure of one or partial unit in a capacitor bank, neutral is
shifted and this is reflected on the open delta terminals. This unbalanced voltage value is
specified value depends on numbers of units in capacitor bank. A setting for NDR is
selected as 5 Volts for 1 Sec.
The modern Numerical relay does not require open delta voltage from RVT. But this
relay requires 3phase, 4wires voltage of Star connected secondary winding of RVT and
this relay derive Open Delta Voltage internally.
2.0
TESTING AND MAINTENACE OF PROTECTION RELAYS
Unlike other equipment, the protection relays remain without any operation until a fault
develops. For a reliable service and to ensure that the relay is always vigilant, proper
maintenance is must and must be carried out periodically.
2.1
MAINTENANCE TESTS:
Maintenance tests are done in field periodically. The performance of relay is ensured by
better maintenance. Basic requirement of sensitivity, selectivity, reliability and stability
can be satisfied by proper maintenance.
Due to operating conditions in substation, dirt and dust may accumulate on relays, relay
contacts. To avoid this relays are to be cleaned periodically.
Loose electrical connection can cause extra and may result in false operation of relay. To
avoid this, all the relay connections are to be tightened every now and then.
To confirm that relay operation at the particular setting under particular conditions for
which the relay is meant for operation, we should perform number of tests on relays
periodically (ROUTINE RELAY TESTING).
To confirm the breaker operation by closing of relay contacts by operating relay for
particular protection (THROUGH TESTING).
Secondary injection tests i.e. relay testing, tripping tests are to be carried out at least once
in a year.
46
2.2
SECONDARY CURRENT INJECTION TEST SET
Secondary current injection set is used to carry out secondary injection tests, is used to
inject current in CT secondary circuit to checks operation of relays and tripping of
breaker. It comprises calibrated variable current and voltage supplies and timer devices
which used for relay testing and obtaining their characteristics.
Secondary injection does not check overall system including CT‘s. It is rare occasion for
fault in CT, secondary test is sufficient for routine testing.
In System Protection Dept, there are 4 nos of 1 phase conventional type secondary
current injection set. There are 3nos(Doble – 1 no &Ponova – 2 nos) of laptop operated 3
phase secondary current injection sets with 3 phase current and 3 phase voltage outputs.
2.3
PRIMARY CURRENT INJECTION TEST SET
Protection relays is fed from a CT‘s secondary in the switchgear to be protected. Primary
current injection testing checks all parts of the protection circuit by injecting the test
current through primary circuit of CT‘s. Primary current injection set comprise current
supply unit, control unit and other accessories. Test set can give variable output current
47
by means of built-in auto transformer. Set is connected to AC single phase supply. The
output is connected to primary circuit of CT and can be varied by control unit of the set.
Using the primary current injection set, relay pickup and tripping of relays can be
checked. This test set is used for carrying out Stability tests for Restricted Earth Fault
(REF) test.
2.4
ROUTINE RELAY TESTING:
Steps to be followed in Routine Relay Testing
Cleaning of protection Relay, Auxiliary relays
All the connections from CT & PT end to relay terminals are to be tightened
Setting of relay is checked for assigned values and parameter as per testing sheet.
Testing of individual relay for each protection function
Through Testing from CT end to check relay operation for its each protection function.
Confirm tripping of breaker as per tripping scheme.
2.5
COMMISSIONING TESTS:
Commissioning tests are field tests to prove the performance of relays circuit in actual
service while carrying out new commissioning jobs and replacement jobs.
Steps to be followed in commissioning tests
Checking wiring on basis of the circuit diagram / drawing
Current Transformer (CT) testing for CT ratios, Polarity, Knee point voltage.
Potential Transformer (PT) testing for PT ratios, Polarity, Phasing.
Relay setting and individual relay testing by secondary current injection set.
Checking secondary circuit by injecting current by secondary current injection set and
confirm tripping of the breaker by operating relay for particular protection (THROUGH
TESTING).
Stability tests for Ratio Differential (RD) test by energizing primary side at reduced
voltage i.e. from 415 Volts, 3 phase source.
Stability tests for Restricted Earth Fault (REF) test by primary current injection test set.
48
2.6
RATIO DIFFERENTIAL (RD) STABILITY TEST
RD Stability test is carried out at time of commissioning, replacement jobs and tripping
of transformer on RD & REF relay indication.
Material required – 3 core copper cable
Confirm that HV and LV circuit breakers are OFF and Isolated and Tap position of
OLTC at tap no 5 (Normal tap).
While carrying RD Stability test, Secondary side of power transformer is shorted before
Circuit breaker and after LV CT‘s.
Remove the 33/22kV Incoming cable in HV Breaker and connect 415 Volts, 3 phase, 3
wire, 50 Hz supply through 63/100Amps ICTP in HV switchgear to charge power
transformer. Take HV breaker at Service position and check On & OFF operation of HV
Breaker from Control panel.
Check Ph-Ph & Ph-N voltage at ICTP. Insert fuses and switch ON ICTP. Check PhasePhase & Phase-N supply at connection in HV breaker. Switch ON HV Breaker which
will charge the transformer.
As per RD Stability format for particular relay, note down reading for HV & LV side
currents on HV, LV relays and Multi Function Meters and HV & LV side currents,
Operating currents (Differential / Spill currents), Restraining currents and REF current on
RD relay.
49
Confirm that primary value of HV, LV side currents shall be match with calculated value
for particular MVA capacity and CT ratio.
2.7
RESTRICTED EARTH FAULT (REF) STABILITY TEST
REF Stability test is carried out at time of commissioning, replacement jobs and tripping
of transformer on REF relay indication.
Material required – Single core copper welding cable, Primary current injection set, Tong
Tester, Multimeter
Confirm that HV and LV circuit breakers are OFF and Isolated.
While carrying REF Stability test, connect current cables of primary current injection set
as per drawing for R phase NORMAL connection i.e. POWER FLOW Condition as per
Power Flow so that LV CT and NCT should be in current circuit.
Inject 50 Amps current and confirm that primary value of current of LV side & NCT side
shall be same.
Increase Injected current by primary injection set up to 300 Amps and As per REF
Stability format for particular relay, note down reading for LV side currents on LV relays
and Multi-Function Meters and LV side & NCT side currents, Operating current (REF
Differential current) on RD relay.
50
Confirm that Operating (REF Differential) current in RD relay should be Zero and there
is no tripping on REF relay.
SHORT the Stabilizing Resistor and Repeat the above procedure in Normal condition.
Repeat the above procedure for Y & B Phase in Normal condition.
NOTE: While carrying out above REF Stability current, as we are injecting 300 amps
current in LV side of transformer there is tripping of RD relay. Thus we can confirm the
operation of RD relay by primary injection testing.
Interchange P1 & P2 connection either at NCT or Line CT to create for FAULT
condition i.e. ABNORMAL Connection.
Inject 50 Amps current in R phase in abnormal condition & WITHOUT shorting
Stabilizing resistor. Note down reading for LV side currents on LV relays and MultiFunction Meters and LV side & NCT side currents, Operating current (REF Differential
current) on RD relay.
Ramp up current slowly and observe REF differential current on RD relay. Confirm that
when REF differential current about to set value of REF setting, there is tripping of REF
relay.
SHORT the Stabilizing Resistor and Repeat the above procedure for R phase in abnormal
condition.
Take HV & LV breakers at TEST position and check tripping of both breakers through
Master Trip relays on operation of REF relay by injecting current in ABNORMAL
condition without shorting the Stabilizing resistor.
51
3.0 DETAILS OF THE WORK CARRIED OUT WHILE PERFORMING FOLLOWING JOBS
I) REPLACEMENT OF PRIMARY SWITCHGEAR
i
Writing of Switchgear and Breaker nameplates in rough book.
ii
Writing of Current transformers nameplates along with drawing in rough book.
iii
iv
v
vi
vii
viii
Drawing of CT current circuit up to Terminal block in LV compartment in rough book
showing CT Terminals, CT Ferrules and Terminals Blocks.
Pictorial diagram of CT showing P1 & P2, CT Terminal Block, Location of S1, S2 & S3)
showing actual location in switchgear.
Writing of Potential transformers nameplates along with drawing in rough book.
Drawing of PT current circuit up to Terminal block up to LV compartment in rough book
showing PT Terminals, PT Ferrules and PT Terminals Blocks.
Pictorial diagram of PT showing Primary Terminals, PT Terminal Block, Location of a, a1
& n) showing actual location in switchgear.
Testing of Current transformers by Omicron make CT Analyser from Terminal Blocks in
current circuit
ix
Testing of Potential transformers for Ratio Test after removing PT from switchgear.
x
Testing of Potential transformers for Ratio test for both ratio while PT is at service position
in switchgear. Check voltage at Terminal Blocks in LV compartment.
xi
Transformer Relay setting by respective relay software through Laptop if required.
xii
Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
xiii
As per CT polarity and Power flow, finalise of CT Star point on HV side for O/C+E/F &
RD protection
xiv
Tightening of all connection.
xv
Through testing from CT end as per testing sheet.
xvi
RD Stability Testing as per testing sheet
xvii
Confirmation for tripping of HV Breakers on different protections and transformer
commands.
xviii
Confirmation of HV & LV voltage on relay display and Terminal blocks.
xix
Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits from CT & PT
terminal to Relay terminals.
xx
Log a message for completion of work at Supervisory / System Control.
II)
REPLACEMENT OF BUS SECTION
i
Writing of Switchgear and Breaker nameplates of Incomer, Outgoing and Capacitor feeders
in rough book.
52
ii
Writing of Current transformers nameplates of Incomer, Outgoing and Capacitor feeders
along with drawing in rough book.
iii
Writing of Serial Numbers of all CTs in rough book.
iv
Drawing of CT current circuit up to Terminal block in LV compartment of Incomer,
Outgoing and Capacitor feeders in rough book showing CT Terminals, CT Ferrules and
Terminals Blocks.
Pictorial diagram of CT showing P1 & P2, CT Terminal Block, Location of S1, S2 & S3)
showing actual location in switchgear.
Writing of Potential transformer nameplates (PT Unit & PT Assembly) along with drawing
in rough book.
Drawing of PT current circuit up to Terminal block up to LV compartment in rough book
showing PT Terminals, PT Ferrules and PT Terminals Blocks.
Pictorial diagram of PT showing Primary Terminals, PT Terminal Block, Location of a, a1
& n) showing actual location in Incomer switchgear.
Testing of Current transformers by Omicron make CT Analyser from Terminal Blocks in
current circuit
v
vi
vii
viii
ix
x
Testing of Potential transformers for Ratio Test after removing PT from switchgear.
xi
Testing of Potential transformers for Ratio test for both ratio while PT is at service position
in switchgear. Check voltage at Terminal Blocks in LV compartment.
xii
Collection of all data required for calculation of Relay setting
xiii
Calculation of relay setting and its tabulation
xiv
Bus section Relay setting by respective relay software through Laptop.
xv
Bus section Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
xvi
Transformer Relay setting by respective relay software through Laptop if required.
xvii
Transformer Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
xviii
As per CT polarity and Power flow, finalise of CT Star point on HV side for O/C+E/F &
RD protection
xix
Tightening of all connections.
xx
Through testing from CT end as per testing sheet.
xxi
REF Stability Testing as per testing sheet
xxii
RD Stability Testing as per testing sheet
xxiii
Confirmation for tripping of HV & LV Breakers on different protections and transformer
commands.
xiv
Confirmation of HV & LV voltage on relay display and Terminal blocks.
xxv
Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits from CT & PT
terminal to Relay terminals.
xxvi
Log a message for completion of work at Supervisory / System Control.
53
III) REPLACEMENT OF CONTROL, RELAY & ALARM PANELS
i
Writing of CARP nameplates, Relay details (Make, Models, Sr Nos) in rough book.
ii Collection of all data required for calculation of Relay setting
iii
Calculation of relay setting and its tabulation
iv
Relay setting by respective relay software through Laptop.
v
Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
vi
vii
vii
As per CT polarity and Power flow, finalise of CT Star point for O/C+E/F, RD, REF protection
After installation of CARP, Drawing of CT current circuit up to relay terminal in rough book
showing Terminals Blocks with ferrules.
Drawing of PT voltage circuit up to relay terminal in rough book showing Terminals Blocks
with ferrules.
ix
Tightening of all connections.
x
Through testing from CT end as per testing sheet.
xi
REF Stability Testing as per testing sheet
xii
RD Stability Testing as per testing sheet
xiii
Checking of all transformer commands from marshalling box.
xiv
Confirmation for tripping of HV & LV Breakers on different protections and transformer
commands.
xv
Confirmation of HV & LV voltage on relay display and Terminal blocks.
xvi
Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits
xvii Log a message for completion of work at Supervisory / System Control.
IV) REPLACEMENT OF POWER TRANSFORMER
i
Writing of power transformer nameplates in rough book.
ii
Collection of all data required for calculation of Relay setting for new transformer
iii
Calculation of relay setting and its tabulation
iv
Relay setting by respective relay software through Laptop.
v
Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
vi
Change the HV, LV & NCT CT ratio as per setting sheet
vii
As per CT polarity and Power flow, finalise of CT Star point for O/C+E/F, RD, REF
protection
54
viii
After installation of CARP, Drawing of CT current circuit up to relay terminal in rough book
showing Terminals Blocks with ferrules.
ix
Change the PT ratio as per new transformer ratio.
x
Drawing of PT voltage circuit up to relay terminal in rough book showing Terminals Blocks
with ferrules.
xi
Tightening of all connections.
xii
Through testing from CT end as per testing sheet.
xiii
REF Stability Testing as per testing sheet
xiv
RD Stability Testing as per testing sheet
xv
Checking of all transformer commands from marshalling box.
xvi
Confirmation for tripping of HV & LV Breakers on different protections and transformer
commands.
xvii
Confirmation of HV & LV voltage on relay display and Terminal blocks.
xviii Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits
xix Log a message for completion of work at Supervisory / System Control.
V) COMMISSIONING OF NEW RECEIVING SUBSTATION
a)
Commissioning of Primary Breaker
i
Writing of Switchgear and Breaker nameplates in rough book.
ii
Writing of Current transformers nameplates along with drawing in rough book.
iii
Drawing of CT current circuit up to Terminal block in LV compartment in rough book
showing CT Terminals, CT Ferrules and Terminals Blocks.
Pictorial diagram of CT showing P1 & P2, CT Terminal Block, Location of S1, S2 & S3)
showing actual location in switchgear.
iv
v
Writing of Potential transformers nameplates along with drawing in rough book.
vi
Drawing of PT current circuit up to Terminal block up to LV compartment in rough book
showing PT Terminals, PT Ferrules and PT Terminals Blocks.
Pictorial diagram of PT showing Primary Terminals, PT Terminal Block, Location of a, a1 &
n) showing actual location in switchgear.
Testing of Current transformers by Omicron make CT Analyser from Terminal Blocks in
current circuit
vii
viii
ix
Testing of Potential transformers for Ratio Test after removing PT from switchgear.
x
Testing of Potential transformers for Ratio test for both ratio while PT is at service position in
switchgear. Check voltage at Terminal Blocks in LV compartment.
xi
Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits
55
b) Commissioning of Secondary Bus Section
i
Writing of Switchgear and Breaker nameplates of Incomer, Outgoing and Capacitor feeders
in rough book.
ii
Writing of Current transformers nameplates of Incomer, Outgoing and Capacitor feeders
along with drawing in rough book.
iii
Writing of Serial Numbers of all CTs in rough book.
iv
v
vi
vii
viii
ix
Drawing of CT current circuit up to Terminal block in LV compartment of Incomer,
Outgoing and Capacitor feeders in rough book showing CT Terminals, CT Ferrules and
Terminals Blocks.
Pictorial diagram of CT showing P1 & P2, CT Terminal Block, Location of S1, S2 & S3)
showing actual location in switchgear.
Writing of Potential transformer nameplates (PT Unit & PT Assembly) along with drawing in
rough book.
Drawing of PT current circuit up to Terminal block up to LV compartment in rough book
showing PT Terminals, PT Ferrules and PT Terminals Blocks.
Pictorial diagram of PT showing Primary Terminals, PT Terminal Block, Location of a, a1 &
n) showing actual location in Incomer switchgear.
Testing of Current transformers by Omicron make CT Analyser from Terminal Blocks in
current circuit
x
Testing of Potential transformers for Ratio Test after removing PT from switchgear.
xi
Testing of Potential transformers for Ratio test for both ratio while PT is at service position in
switchgear. Check voltage at Terminal Blocks in LV compartment.
xii
Collection of all data required for calculation of Relay setting and its tabulation.
xiii
Bus section Relay setting by respective relay software through Laptop.
xiv
Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
xv
Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits for Outgoing &
Capacitor Feeders
c)
Commissioning of Power Transformer
i
Writing of power transformer nameplates in rough book.
ii
Change the HV, LV & NCT CT ratio as per setting sheet
iii
iv
As per CT polarity and Power flow, finalise of CT Star point for O/C+E/F, RD, REF
protection
After installation of CARP, Drawing of CT current circuit up to relay terminal in rough book
showing Terminals Blocks with ferrules.
v
Change the PT ratio as per new transformer ratio.
vi
Drawing of PT voltage circuit up to relay terminal in rough book showing Terminals Blocks
with ferrules.
vii
Fair work of all Nameplate of transformer.
56
d) Commissioning of Control, Relay and Alarm Panels
i
Writing of CARP nameplates, Relay details (Make, Models, Sr Nos) in rough book.
ii
Collection of all data required for calculation of Relay setting
iii
Calculation of relay setting and its tabulation
iv
Relay setting by respective relay software through Laptop.
v
Relay testing by 3 phase current injection set (Doble/PONOVO) as per testing sheet.
vi
As per CT polarity and Power flow, finalise of CT Star point for O/C+E/F, RD, REF
protection
After installation of CARP, Drawing of CT current circuit up to relay terminal in rough book
showing Terminals Blocks with ferrules.
Drawing of PT voltage circuit up to relay terminal in rough book showing Terminals Blocks
with ferrules.
vii
viii
ix
Tightening of all connections.
x
Through testing from CT end as per testing sheet.
xi
REF Stability Testing as per testing sheet
xii
RD Stability Testing as per testing sheet
xiii
Checking of all transformer commands from marshalling box.
xiv
Confirmation for tripping of HV & LV Breakers on different protections and transformer
commands.
xv
Confirmation of HV & LV voltage on relay display and Terminal blocks.
xvi
Fair work of all Nameplate, CT & PT Diagrams and CT & PT circuits
xvii
Log a message for completion of work at Supervisory / System Control.
4.0
TRIPPING INVESTIGATION:
4.1
Whenever there is any tripping of Transformers and outgoing feeders in system reported
by O&M Departments. Such as Power Transformer tripping, feeder tripping, Power
Transformer tripping along with feeder tripping, tripping without relay indication,
tripping of feeder breaker for downward fault, etc. The tripping investigation is carried
out to ascertain the correct operation of protection relays, analysis of operation of relays,
type of fault in the system.
4.2
For carrying out tripping investigation, outage of transformer/feeder is taken.
57
4.3
Initially, we carry out through testing without disturbing protection system. Then relay
characteristic is verified by secondary current injection method. For proper co-ordination,
suitable action like increase/decrease TMS setting value etc. is done. For finding out the
cause of tripping, the necessary data such as SCADA report, fault report, fault event data
recorded in the relay and disturbance recorder data is analyzed. If setting is changed,
same is kept under observation.
4.4
The tripping investigation report is lodged in respective Controls and forwarded to
concerned O&M Department.
5.0
PROCEDURE IN RESPECT OF TESTING OF TAP-CHANGE CONTROL
RELAYS
5.1
General:
All Power Transformers installed in our Receiving Sub Stations are provided with onload tap-change gear i.e. the taps of transformer can be changed when the transformer is
on load. This tap change gear can be operated manually by checking or electrically by
remote control or automatic control.
5.2
All the automatic voltage regulating relays (AVR) are inspected for the correct operation
of OLTC. The automatic operation of tap-change control can be described as follows:
5.2.1 Automatic Voltage regulating relay, which is sensitive to change in voltages, is connected
across secondary side of Potential Transformer installed on 110kV side of Power
transformer. Whenever the Secondary voltage of Power Transformer increases or
decreases by 150 Volts, the secondary voltage of Potential Transformer will increase or
decrease by approx.1.5voltage (P.T. ratio 11000/110 Volts). This change in voltage starts
the voltage regulating relay which immediately gives impulse to a timing relay. If the
system voltage remains in this condition for more than 60 seconds, timer completes and
an electrical impulse is given to operate on load tap change gear (OLTC) to lower or raise
the tap to maintain voltage within permissible limit.
58
4.(b)(iv)) The norms set for discharge of functions
1) The monthly group incentive bonus scheme for the employees of the erstwhile Meters
and Relays Department working in the ‗Testing and Repairs Section‘ was in existence
till 31.03.2010 who are required to carry out the work of overhauling and testing of
meters as well as relays, punch clocks, other measuring instruments, minor gadgets,
etc. under the approved I.B. Scheme no. 51 for the group no. 518 & 519.
The purpose of implementation of this scheme was to improve efficiency at a minimum
cost and
i) To maintain reliability of operation and accuracy of performance of various types of
energy meters,
ii) Ensuring that the protective, indicating and regulating relays operate at the required
settings with proper indication,
iii) Ensuring that all protective and testing equipments that are procured complies with
the requirements of the specification.
Before the establishment of System Protection Department in the year 2011 the Relay
testing activity was under erstwhile Meters and Relays Department. Under the scheme
no. 51 activities carried out by System Protection Department are given at sr. no. 29 to
32, 45, 46, 56, 60, 61, 72 & 75 under the head Activity Description (Appendix I) and the
standard man minutes required in Appendix II of the scheme enclosed as Annexure – II.
The same is summarized below.
Activities of System Protection Department and Standard Man- Minutes required for
measured activities and output per month
Sr.
No.
1)
Sr. No. as per GIB
Scheme no.51
29
a)
Activity Description
Std. ManMinutes
Avg. Output
per month
Relay Testing in RSS with annunciation relay
On outgoing feeders
i)
Conventional Relay
287
40
ii)
Numerical Relay
145
18.23
305
6.38
b)
On Capacitor Panel
i)
Conventional Relay
59
ii)
c)
Numerical Relay
On Transformer control panel for
i)
Conventional Relay
ii)
Numerical Relay
d)
241
2.69
960
8.21
0
0
1027
3.38
33/22 kV
On transformer Control Panel for 110 kV
i)
Conventional Relay
ii)
Numerical Relay
0
2)
30
Relay testing in DSS
3)
31
OCB testing in
a)
Distribution workshop
240
27.13
b)
Substation
480
0
4)
32)
130
26.46
5)
45)
Inspection of Tap change control panels in
RSS
Relay overhauling in RSS while testing
Std. ManMinutes
Avg. Output
per month
a)
On outgoing feeders
i)
Conventional Relay
ii)
Numerical Relay
b)
Sr.
No.
On capacitor panel
i)
Conventional Relay
ii)
Numerical Relay
Sr. No. as per GIB
Scheme no.51
c)
Activity Description
On Transformer control panel for 33/22 kV
i)
Conventional Relay
ii)
Numerical Relay
d)
6)
7)
46
56)
8)
60)
9)
61)
10)
11)
72)
75)
480
On transformer Control Panel for 110 kV
i)
Conventional Relay
ii)
Numerical Relay
Relay overhauling in DSS while testing
Attending to relay complaints (investigation
of mal-operation of relays in Receiving SubStn)
Work in connection of new relay/ new relay
panels
Attending to complaints of AVR
Attending to relay complaints (investigation
of mal-operation of relays in Receiving SubStation)
Work in connection of new relay/ new relay
panels
60
4.(b)(v) The rules, regulations, instructions, manuals and records
held and used by employees of the department for
discharging functions
Please refer Annex- III
4.(b)(vi) The statement of the categories of documents that are held
by department or under its control
Please refer Annex- IV
4.(b)(vii)) The particulars of any arrangement that exists for
consultation with or representation by the members of
the public in relation to the formulation of its policy or
implementation thereof :Not applicable to System Protection Department
4.(b)(viii)) A statement of the boards, councils, committees and other
bodies consisting of two or more persons constituted as its
part or for the purpose of its advice and as to whether
meeting of those boards, councils, committees and other
bodies are open to the public or the minutes of such
meetings are accessible for public :Not applicable to System Protection Department
61
4.(b)(ix)) A directory of its officers and employees:Sr.
No
.
1
2
3
4
5
6
7
8
9
10
11
12
Shri P.D.Gunjal
Shri S.N.Pawar
Shri. G. E. Bains
Shri. S.S. Kulkarni
Shri. R. B. Zope
Shri. S.D. Joglekar
Shri. M. M. Shaikh
Shri P.R.Shelar
Shri P.G.Dhuri
Shri H.K.Patil
Shri A.K.Hajare
Shri. K. C. Thakur
13
Shri. S. C. Tawade
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Shri R.V.Manjalkar
Shri V.D.Tawde
Shri J.N.Patil
Shri P.P.Redij
Shri S.R.Satkar
Shri V.R.Borate
Shri V.M.Shelar
Shri S.G.Wairkar
Shri P.S.Chavan
Shri A.B.Pawar
Shri D.B.Gamare
Shri S.M.Shirke
Shri Z.S.Jadhav
Shri D. G. Jadhav
28
Shri S.R.Surve
29
30
31
Smt. T.M.Velankar
Shri M.K.Bhosle
Smt. S.S.Godkar
Name of Officer/Staff
Designation
Grade
Ch.No.
P.S.No
Divisional Engineer
Superintendent
Asst. Engineer
Asst. Engineer
Asst. Engineer
Asst. Engineer
Asst. Engineer
Foreman General
Charge Engineer
Charge Engineer
Foreman General
Foreman General
Charge Engineer
Foreman
Foreman
Foreman
Foreman
Foreman
Assistant Foreman
Assistant Foreman
Tradesman
Nawghany
Nawghany
Nawghany
Nawghany
Nawghany
M. V. Driver
Asst.Admin.
Officer
Supervisor(P)
Supervisor(P)
Sepoy
A-3
A-4
A-5
A-5
A-5
A-5
A-5
T-8
T-8
T-8
T-8
T-8
T-8
T-7
T-7
T-7
T-6
T-6
T-6
T-6
T-3
T-1
T-1
T-1
T-1
T-1
P2/ G3
215168
214129
215166
215301
215410
215591
215557
204138
403778
403780
403821
403815
403830
403832
403874
403883
403884
403867
407340
408767
410680
411102
411177
413322
413401
320162
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
163/02
463/02
463/02
463/02
463/02
463/02
463/02
463/02
A/G VIII
212492
163/02
A/G VII
A/G VII
A/G I
212801
211220
280879
163/02
163/02
163/02
62
219004
4.(b)(x))
The monthly remuneration received by each of its officers
and employees including the system of compensation as
provided in its regulations:
Sr.
No.
Name of Officer/Staff
Designation
1
Shri P.D.Gunjal
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Shri S.N.Pawar
Divisional
Engineer
Superintendent
Shri. G. E. Bains
Shri. S.S. Kulkarni
Shri. R. B. Zope
Shri. S.D. Joglekar
Shri. M. M. Shaikh
Asst.Engineer
Asst.Engineer
Asst.Engineer
Asst.Engineer
Asst. Engineer
Shri P.R.Shelar
Shri P.G.Dhuri
Shri H.K.Patil
Shri A.K.Hajare
Foreman General
Foreman General
Foreman General
Foreman General
28
Shri S.R.Surve
29
30
31
Smt. T.M.Velankar
Shri M.K.Bhosle
Smt. S.S.Godkar
Shri. K. C. Thakur
Foreman General
Charge Engineer
Shri. S. C. Tawade
Shri R.V.Manjalkar
Shri V.D.Tawde
Shri J.N.Partil
Shri P.P.Redij
Shri S.R.Satkar
Shri V.R.Borate
Shri V.M.Shelar
Shri S.G.Wairkar
Shri P.S.Chavan
Shri A.B.Pawar
Shri D.B.Gamare
Shri S.M.Shirke
Shri Z.S.Jadhav
Foreman
Foreman
Foreman
Foreman
Foreman
Assistant Foreman
Assistant Foreman
Painter
Nawghany
Nawghany
Nawghany
Nawghany
Nawghany
Shri D. G. Jadhav
M. V. Driver
Asst. Admin.
Officer
Supervisor(P)
Supervisor(P)
Sepoy
63
- As per March 2015
Basic Pay
(Rs.)
Monthly Remuneration
(Basic+Allowances)
23780/-
72897/-
25835/20270/19280/19280/20825/19775/21380/17895/17895/16265/15910/13685/15020/15020/14050/13815/13815/13580/14775/12055/10875/10505/10505/8450/5930/14285/-
86433/61638/68355/64159/63251/66723/72694/56425/56104/45821/51178/38564/39500/39433/42197/41512/41509/41880/45344/36570/29051/31846/28100/25998/18171/37369/-
18785/-
57526/-
14530/15275/6180/-
41763/43132/15195/-
4.(b)(xi)) The budget allocated to each of its agency, indication the
particulars of all plans, proposed expenditures and
reports on disbursement made:No direct budget allocation is proposed by department for capital expenditure.
The budget provision for the individual job undertaken by the department for dead
stock and capital expenditures is made by the department
The budget allocation :The plan proposed:Not applicable to System Protection Department
4.(b)(xii)) The manner of execution of subsidy program including
the amount allocated and the details of beneficiaries of
such program: Not applicable to System Protection Department
4.(b)(xiii)) Particular of recipients of concessions, permits or
authorization granted by it:Not applicable to System Protection Department
4.(b)(xiv)) Details in respect of the information, available to or held
by it, reduced in an electronic form:The work of System Protection Department is not directly related with outside
peoples. The information in respect of working procedure in respect of activities
carried out by the department and the information in respect of officers and staff
is available in the electronic form on the Undertaking‘s website
www.bestundertaking.
64
4.(b)(xv)) The particulars of facilities available to citizens for
obtaining information including the working hours in a
library or reading room, if maintained for public use :No such library or reading room is provided.
4.(b)(xvi)) The names, designation and other particulars of the
public information as may be prescribed and thereafter
updated these publications every year:Shri. P.D. Gunjal
Divisional Engineer System Protection Department
4.(b)(xvii)) Such other information as may be prescribed: - NIL
65
Annex- I
SYSTEM PROTECTION DEPARTMENT ORGANISATION CHART
DIVISIONAL ENGINEER
SYSTEM PROTECTION
Supdt.
SYSTEM PROTECTION
AESP-1
SOUTH &
CENTRAL
SOUTH ZONE
AESP-2
SOUTH &
CENTRAL
SOUTH ZONE
AESP-3
COMMISSIONING OF NEW
RSS & REPLACEMENT JOBS
IN EXISTING RSS, BOOKING
OF STAFF / LOGISTICS,
PREPARING OF MIS REPORT
AESP-4
CENTRAL
NORTH ZONE ,
NORTH EAST
ZONE, NORTH
WEST ZONE
AESP-5
CENTRAL
NORTH ZONE ,
NORTH EAST
ZONE, NORTH
WEST ZONE
÷
FOREMAN GENERAL -1
OFFICE
FOREMAN
GENERAL -2
FOREMAN
GENERAL -3
FOREMAN
GENERAL -4
FOREMAN
GENERAL -5
66
FOREMAN
GENERAL-6
AAOSP
Annex- II
SYSTEM PROTECTION DEPARTMENT
Approved Group Incentive Bonus Scheme no. 51
for the group no. 518 & 519
( The document Group Incentive Bonus Scheme no. 51 is re-typed below)
67
Scheme No. 51
Group No. 518,519
Date: 01.04.2008 to
31.03.2010
GROUP INCENTIVE BONUS SCHEME NO. 51 FOR TESTING AND REPAIRS
SECTION OF THE METERS AND RELAYS DEPARTMENT
1.
OBJECTIVES:
1.1 This monthly group incentive bonus scheme for the employees working in the ‗Testing and
Repairs Section ‗ of the Meters and Relays Department, who are carrying out the work of
overhauling and testing of meters as well as relays, punching clock, other measuring
instruments, minor gadgets, etc. is being introduced for the purpose of :
a) Providing an easy way to compute the performance level of each group by relating the
input manpower of the group with its work output.
b) Providing for incentive bonus payments which are related to the improved performance
level maintained by each group, during the month as envisaged under BCR 780 dated
24.10.1977.
1.2
In the end result, it is expected to increase the productivity of these sections by
encouraging greater co-ordinated effort, by reducing absenteeism, and by promoting
better participation by supervisory and other staff engaged in ancillary work and auxiliary
work.
1.3
Specifically, the scheme would achieve the following:-
1.3.1 Maintaining the reliability of operation and accuracy of performance of energy meters,
M.D. meters and Sine meters at a high standard, by proper periodic attention.
1.3.2 Ensuring that the protective, indicating and regulating relays operate at the required
settings with proper indication.
1.3.3 Ensuring that all protective and testing equipment that is procured complies with the
requirements of the specifications.
1.4
In short, the prime objective is to improve efficiency at minimum cost by the payment of
incentive bonus.
68
2.
2.1
SCOPE:
This scheme covers two distinct and separate groups.
2.1.1 Group- ‗A‘
Group ‗A‘ comprises all tradesmen on direct work, indirect work, helpers, tradesmen on
ancillary and auxiliary work and unmeasured work, supervisors and Deputy Engineers
connected with the testing activities.
2.1.2 Group- ‗B‘
Group ‗B‘ comprises all tradesmen on direct work, indirect work, helpers, tradesmen on
ancillary and auxiliary work and unmeasured work, supervisors and Dy.Engineers
working connected with the activities of the Repairs Section and the Instrument Section.
2.1.3 In this scheme total 5 nos. of M.V.drivers who are working in Meters & Relays
Department are included.
3.
ACTIVITES
3.1
The activities performed by these sections are listed in Appendix ‗I‘
4.
DESIGN OF THE SCHEME :
4.1
Standard Time
4.1.1 Standard times in standard man minutes have been worked out based on : Work
measurement, analysis of past data and analytical estimating or major parts of activities in
the Testing Section and Repairs Section.
4.1.2 The standard times for the various activities carried out in the Testing Section and the
Repairs Section are shown in Appendix IIA and Appendix IIB respectively.
4.2
Allocation of manpower
4.2.1 Average expected monthly outputs for different activities of the groups are worked out
based on past data, modified for future needs and converted into standard man-minutes
(See Appendix IIIA and Appendix IIIB).
4.2.2 In addition to the quantified and measured activities, the section also perform
unmeasured activities. These are listed in Appendix IV.
69
4.2.3 Manning
4.2.3.1 The number of indirect workers required for a achieving the outputs referred at 4.2.1, is
calculated based on the sections working for 25days a month and 45.25hrs, a week.
Average performance level is assumed to be 135%(See Appendix VA and Appendix VB)
4.2.3.2 The allocation of manpower ( as direct and indirect) for, executing he measured as well
as the unmeasured work and the requirements for leave reserve at 15%, are also shown in
Appendix ‗V‘
4.2.3.3 Manning will be reviewed as and when necessity arises due to addition or reduction of
activities sustained changes in the composition of monthly outputs. Under these
circumstances, addition or reduction to the number of employees allocated on the
permanent basis will be on the recommendations of the Joint Work Study Committee and
the approval of Addl.GM(ES).
4.3
Computing Average Group Efficiency(AGE)
4.3.1 From the output from the various activities in the month, the total standard man-minutes
produced by each of the group will be calculated using the standard time for each
activity. The AGE for each of the group will then be calculated using the formula.
Total std man-min. produced by the group X 100
AGE = --------------------------------------------------------------452.5 X Total No. of direct worker days available
during the month
This formula for computing group efficiency is based on the output by the direct workers
in the group whose number is shown in Appendix VA and VB.
4.3.2 The Average Group Efficiency(AGE) shall be used for obtaining the Factor for Incentive
Bonus(GIB) which would be the percentage of basic salary payable as incentive bonus to
each member of the group, subject to other stipulation laid down in Appendix VA and
VB, Appendix VII and in clauses under section 6 relating to quality.
4.4
Payment of Incentive Bonus
The relationship between AGE and FIB is given in Appendix VI. These payments shall
be effected every month. For standard performance, i.e. 115% performance level (or
AGE) the amount of incentive payable is 18% of the basic salary and for 153%
performance level (or AGE) it is 45%. No Incentive Bonus is payable below 115%
performance level.
70
5.
QUANTITY OF PRODUCTION
5.1
The Asst. Engineer or Superintendent with the help of the Dy. Engineer and the
supervisors, is expected to : schedule and plan the activities well in advance, ensure
availability of materials and special equipment for the activities planned, and co-ordinate
transport of men and materials. While every effort shall be made to maximize production,
standards of safety and quality shall be maintained.
6.
QUALITY CHECKING
6.1
On Line Quality Checks
The Supervisor shall spot check the work of every Meter Tester once a day and if he
finds that the error is out of limits he shall direct the Meter Tester to repeat the test and
correct the meters which require adjustment.
For the above purpose, the test shall be ―Speed Test at U.P.F. and half load‖ and it shall
be carried out when the meters which require adjustment.
6.1.2 Final Quality Checks :
6.1.2.1 A ‗Dial Test‘ shall be performed on each and every tested meter on a separate bench as
stipulated below :
A. SINGLE PHASE
----------------------------------------------------------------------------------------Meter Rating
Test Current
Permissible Range of Error
Amps.
Amps.
----------------------------------------------------------------------------------------40
20
+ 1% to + 2.5%
20
20
--do-10
5
--do-5
5
--do—
----------------------------------------------------------------------------------------B. THREE PHASE
----------------------------------------------------------------------------------------Meter Rating
Test Current
Permissible Range of Error
Amps.
Amps.
----------------------------------------------------------------------------------------100
50
+ 1% to + 2.5%
50
50
--do-30
10
--do-25 & 20
--do------------------------------------------------------------------------------------------
71
If any meter gives an error beyond the range stipulated above :
a) The entire batch shall be restricted:
b) The concerned Meter Tester shall lose his FIB 1% for each such instance.
6.1.2.2 C.T. Meters
After the Meter Tester has finished all the tests, the Asst. Engr. Shall ask him to repeat
the ―Speed Test at U.P.F. ½ load‖ and certify the quality as acceptable or not. For the
purpose of incentive scheme only the output certified by the Asst. Engr. is acceptable,
shall be counted. The Asst. Engr. Is authorized to deduct up to a maximum of 5% from
the FIB for the month for any member of the group who produces output of bad quality.
A record of such deduction shall be kept in the department.
6.2
Repair Section
6.2.1 It should be noted that bad quality of output in repaired and overhauled meters will affect
the output of the Testing Section. Hence, the Testing Section will be required to call for
the services of the Repairs Section whenever the meters are to be adjusted beyond the
reasonable means of the Testing Section.
6.2.2 In the above referred circumstances the repairs section will immediately render the
required services/assistance.
6.3
For all other activities bad quality will result in reduction of bonus earned by any member
of the group who produces it as follows :
In case of any detection and reporting of bad quality, the Asst. Engr. is authorized to
deduct up to a maximum of 5% from the FIB for the month, earned by that member, for
each lapse duly confirmed.
7.
OTHER RULES GOVERNING THE SCHEME
7.1
Other rules governing the scheme are shown in Appendix VII
8.
RECOMMENDED PROCEDURE FOR PAYMENT
8.1
REPORTING OUTPUTS :
monthly input and output statement, in the prescribed format( Appendix VIII ) shall be
submitted, in duplicate, by the division to the JWSC, by the fifth working day of the
following month. This shall include ‗On Roll‘ strength of tradesmen as on the first and
sixteenth of the month. Each pages of this statement should be certified by ‗A‘ grade
officer.
8.2
Joint Work Study Committee shall calculate the AGE and declare the FIB for the group
by the 8th working day of that month, and forward one copy to the division through the
concerned Deputy Chief Engineer.
72
8.3
The Divisional Engineer shall then certify the eligibility and extent of bonus payable to
each member of the group according to Clause 4.3.2 and advise SMA by the 12th working
day of the month.
8.4
Payment of the incentive bonus for the month shall be effected along with the succeeding
month‘s salary
8.5
The above procedure may be reviewed by the JWSC to ensure timely payments.
9.0
RESERVATION CLAUSES
9.1
the modified scheme will be introduced from 1st of April 2008, for a period of 2 years,
and will be extended further after two years. The management reserves the rights to
review, modify alter or cancel this incentive scheme.
9.2
The management also reserves the right to add to or to subtract from the proposed
allocated manpower for reason such as, exigencies of work, seasonal fluctuations, change
in pattern, etc. which may arise in future.
9.3
The management also reserves the right to modify methods, process, standards, etc. work
study of activities affected by such changes shall be carried out by JWSC and the scheme
would be modified to the extent necessary.
10.
REVIEW
10.1
Based on the experience gained during its operation, the entire scheme may be reviewed.
If not action to the country is taken, the scheme would continue from month to month.
****************************
73
Scheme No. 51
Appendix I
Clause 3.1
ACTIVITY OF METER TESTING DEPARTMENT
TESTING AND REPAIRS SECTION
Sr.No.
ACTIVITY DESCRIPTION
1.
2
3
4
5
6
Testing of SP kwh meter on S/A bench (New)
Testing of SP kwh meter on conv.bench(New)
Testing of SP kwh meter on S/A bench (Repaired)
Testing of SP kwh meter on conv. bench (Repaired )
Testing of SP BC kwh meter with machanics
Testing of SP BC kwh meter without machanics
Official testing of sp kwh meter with party/ Laboratory testing of SP kwh
meters
Official testing of SP kwh meter without party
Testing of SP kwh incoming meters for vendor analysis on S/A bench.
Testing of SP kwh incoming meters for vendor analysis on conv. bench.
Testing SP prepayment meter on S/A bench
Testing SP static meter on S/A bench
Testing SP static meter on conv. bench with TVE
Diel Test on SP kwh after sealing
Testing of PP kwh meter on S/A bench,conv.bench(Rep.)
Testing of PP BC kwh meter without mech.
Testing of PP static meter on S/A bench with software
Testing of PP static meter on S/A bench without software
Testing of PP static meter on conv. bench with TVE
Testing of PP kwh prepayment meter on S/A bench
Testing of incoming PP kwh meter for vendor analysis on S/A bench
Testing of incoming PP kwh meter for vendor analysis on Conv. bench
Official testing of PP kwh meter with party/ Laboratory testing of PP kwh
meters
Official testing of PP kwh meter without party
Inspection /Attending to HV metering Installation
Testing & Adjusting HV metering installation
RSS/RSM Calibration for BEST
Reading of R.S.M. with presence of Tata
Relay test. In RSS with annouciation relay
a) On outgoing feeders :
I ) Conventional relay
II ) numeric relay
b) On capacitor panel:
I) Conventional relay
II) numeric relay
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
74
Sr.No. ACTIVITY DESCRIPTION
c) on Tran.Control panel for 33/22 kv :
I ) Conventional relay
II ) numeric relay
d) On Tran. Control panel for 110kv :
I) Conventional relay
II) numeric relay
30
Relay testing in DSS
31
OCB testing in
a) Distribution Worksop
b) Sub.Station
32
Inspection of Tap change control panel in RSS
33
Overhauling of new SP kwh Meter
Overhauling of new SP kwh Meter (when additional inductive loop is
34
provided)
35
Overhauling of old ok PP kwh Meter
36
Repairing & overhauling of damage SP kwh meter
37
Repairing of terminal block
38
Overhauling of new PP kwh meter
39
Overhauling of old ok PP kwh meter
40
Repairing & overhauling of damage PP meter
41
Inspection & check of damage/stop Meter
42
Salvaging/scrapping of SP/PP meter
43
Breaking Of PP meter cover
44
Jewel checking
45
Relay Overhauling in RSS while testing
a) On outgoing feeders :
I ) Conventional relay
II ) numeric relay
b) On capacitor panel:
I ) Conventional relay
II ) numeric relay
c) On Tran.Control panel for 33/22 kv :
I ) Conventional relay
II ) numeric relay
d) On Tran. Control panel for 110kv :
I) Conventional relay
II ) numeric relay
46
Relay Overhauling in DSS while testing
47
Attending to message stopped punching clock on emergency basis
48
Overhauling of punching clock
49
Routine checking / winding of punching clock
a) Dadar/Wadala/Colaba
b) Site Depot
75
Sr.No.
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
ACTIVITY DESCRIPTION
Repairing/Overhauling of electronic punching clock
Overhauling of time winding clock
Changing the lift of punching clock
Testing and calibration of precision instruments
Training
Repairing and maintaining, modifying testing panels
Attending to relay complaints(investigation of maloperation of relays in RSS)
Computer data feeding of all tested meters
Making and fixing potential links and helping of bad curve meters
Repairing and maintaining, modifying testing panels
Work in connection of new relay/ new relay panels
Attending to complaints of AVR
Accucheck testing, TVE, RSS testing
Incoming RSS testing of single phase and three phase
Special instruction and check up of H.V. consumers meters
Attending complaints of H.V.consumer metering from other departments
Keeping accounts of stock of H.V.metering equipments and replenish the stock
To carry out remote metering system wiring
Maintenance of panel and equipment
Repairing and overhauling various types of relays, timers, cable fault burning,
locating equipments, multimeters, meggers and winding coil of differential
relays
Inspecting and maintaining stock of new meters
Fabricating minor items
Attending to relay complaints(Investigation of maloperation of Relays in RSS)
Repairing and overhauling of various types of indicator/recording instruments
such as voltmeter, ammeters, wattmeters, power fector meter, tongtester etc.
Attending to M.D.Meter and backstopped complaints at site
Work in connection of new relays/new relay panels
Examination of I/O, I/Q/polyphase meters for ascertaining charecterstics
Meter Testing on Intrax Test Bench(Aomi Automatic)
a) 1-phase Conventional Meter(New)
b) 1-phase Conventional Meters (Repaired)
c) 3-Phase Static Meter(New)
d) 3-phase Static Meter(Incoming)
e) 3-phase Conventional Meter(Repaired)
f) Laboratory 3 phase Conventional Meter
g) Laboratory 3 phase Static Meter
76
Scheme no.51
Group no.518
Appendix II A
(Clause 4.1.2)
STANDARD MAN-MINUTES FOR MEASURED ACTIVITIES OF
TESTING SECTION OF METER & RELAYS DEPARTMENT
SR.NO.
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B
1
2
3
4
5
6
7
8
9
10
C
1
2
3
ACTIVITY DESCRIPTION
SP KWH METER TESTING :
Testing of SP kwh meter on S/A bench (New)
Testing of SP kwh meter on conv.bench(New)
Testing of SP kwh meter on S/A bench (Repaired)
Testing of SP kwh meter on conv. bench (Repaired )
Testing of SP BC kwh meter with machanics
Testing of SP BC kwh meter without machanics
Official testing of sp kwh meter with party/ Laboratory testing of
SP kwh meters
Official
testing of SP kwh meter without party
Testing of SP kwh incoming meters for vendor analysis on S/A
bench. of SP kwh incoming meters for vendor analysis on conv.
Testing
bench. SP prepayment meter on S/A bench
Testing
Testing SP static meter on S/A bench
Testing SP static meter on conv. bench with TVE
Diel Test on SP kwh after sealing
PP Meter Testing
Testing of PP kwh meter on S/A bench,conv.bench(Rep.)
Testing of PP BC kwh meter without mech.
Testing of PP static meter on S/A bench with software
Testing of PP static meter on S/A bench without software
Testing of PP static meter on conv. bench with TVE
Testing of PP kwh prepayment meter on S/A bench
Testing of incoming PP kwh meter for vendor analysis on S/A
bench of incoming PP kwh meter for vendor analysis on Conv.
Testing
bench
Official testing of PP kwh meter with party/ Laboratory testing of
PP kwh meters
Official
testing of PP kwh meter without party
H.V.Metering
Inspection /Attending to HV metering Installation
Testing & Adjusting HV metering installation
Reading of R.S.M. with presence of Tata
77
STD TIME
Unit
Man-Mins
Count
32
45
42
45
105
157
133
153
32
35
123
30
35
9
110
556
102
121
94
98
80
94
140
170
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
83
100
450
Install
Install
R.S.M.
D
1
2
3
E
Relay test. In RSS with annouciation relay
a) On outgoing feeders :
I ) Conventional relay
II ) numeric relay
b) On capacitor panel:
I ) Conventional relay
II ) numeric relay
c) on Tran.Control panel for 33/22 kv :
I ) Conventional relay
II ) numeric relay
d) On Tran. Control panel for 110kv :
I) Conventional relay
II ) numeric relay
Relay testing in DSS
OCB testing in
a) Distribution Worksop
b) Sub.Station
Inspection of Tap change control panel in RSS
Meter Testing on Intrax Test Bench(Aomi Automatic)
a) 1-phase Conventional Meter(New)
b) 1-phase Conventional Meters (Repaired)
c) 3-Phase Static Meter(New)
d) 3-phase Static Meter(Incoming)
e) 3-phase Conventional Meter(Repaired)
f) Laboratory 3 phase Conventional Meter
g) Laboratory 3 phase Static Meter
SP : Single Phase
PP : Poly Phase
BC : Bad curve
S/W : Software
S/A : Semi Automatic
RSM : Reference std. Meter
RSS : Rotating substandard
78
287
145
Panel
Panel
480
241
Panel
Panel
950
0
Transf.
Transf.
1027
0
480
Transf.
Transf.
Sub-stn
240
480
130
OCB
OCB
RSS
35
38
54
76
65
114
85
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Scheme No.51
Group No. 519
Appendix II B
( Clause 4.1.2)
STANDARD MAN- MINUTES FOR MEASURED ACTIVITY OF
REPAIR SECTION OF METER & RELAYS DEPARTMENT
SR.
NO.
ACTIVITY DESCRIPTION
Std. time
A
SP Overhaauling /Repairing
1
Overhauling of new SP kwh Meter
32
Meter
2
39
Meter
3
Overhauling of new SP kwh Meter
( when additional loop is provided)
Overhauling of old OK SP kwh Meter
80
Meter
4
Repairing and overhauling of damaged SP kwh meter
120
Meter
5
Repairing of terminal block
120
Meter
6
Inspection & check of SP damaged / stop meter
15
Meter
7
Salvaging/ repairing of SP meter
30
Meter
B
PP Overhauling / Rpairing
1
Overhauling of new PP kwh meter
96
Meter
2
Overhauling of old ok PP kwh meter
160
Meter
3
Repairing & overhauling of damaged PP meter
240
Meter
4
Inspection & check of PP damage / stop kwh meter
30
Meter
5
Salvaging / scrapping of PP meter
30
Meter
6
Brazing of PP meter cover
20
Meter
7
Jewel checking
3
Meter
C
Relay Overhauling in RSS while testing
1
a) On outgoing feeders:
i) Conventional Relay
287
Panel
ii) Numeric relay
145
Panel
i) Conventional Relay
305
Panel
ii) Numeric relay
241
Panel
589
Trans
Man Mins
Unit of Count
b)On capacitor panel
a) On the Control panel for 33 /22 kv
i) Conventional Relay
Trans
ii) Numeric relay
b) On the transformer control panel 110 kv
1027
i) Conventional Relay
Trans
Trans
ii) Numeric relay
79
SR.
NO.
ACTIVITY DESCRIPTION
Std. time
2
Relay Overhauling in DSS while testing
3
OCB Testing in
Man Mins
480
a) Distribution Workshop
240
b) Sub station
480
D
Punching Clock
Section
1 message stopped punching clock on emergency basis
Attending to
140
2 of punching clock
Overhauling
3034
3
Routine checking
winding of punching clock
c) Dadar /Wadala / Colaba
10
d) Site Depot
85
4
Repairing /Overhauling of electronic punching clock
430
5
Overhauling of Time winding clock
775
6
Changing the lift of punching clock
960
80
Unit of Count
Scheme No.51
Group No. 518
AppendixIII A
( Clause 4.2.1)
AVERAGFE EXPECTED MONTHLY OUTPUT OF
TESTING SECTION OF METER & RELAYS DEPARTMENT
(PERFORMANCE OUTPUT OF THE YEAR APRIL -2006 TO MARCH- 2008)
Sr.
No.
Total Output per Month
ACTIVITY DESCRIPTION
2006-2007
20072008
Avg. o/p
per month
(2006-08)
Std.
man
mins.
Total man
minutes
Grade
A
SP KWH METER TESTING:
1
Testing of SP kwh meter on S/A bench (New)
0
0
0
32
0
T5/T4
2
Testing of SP kwh meter on con. bench (New)
1852.92
1055.22
1454.07
45
65433.15
T5/T4
3
Testing of SP kwh meter on S/A bench (Repaired)
260
0
130
42
5460
T5/T4
4
Testing of SP kwh meter on con. bench (Repaired)
292.8
553.09
422.95
48
19455.47
T5/T4
5
Testing of SP BC kwh meter with mechanics
0
0
0
105
0
T5/T4
6
Testing of SP BC kwh meter without mechanics
85.29
217.81
141.55
157
22223.35
T5/T4
7
Official Testing of SP kwh meter with party / Laboratory
Testing of SPKwh meters
110.42
47.475
79.09
133
10518.87
T5/T4
8
Official Testing of SP kwh meter without party
4.92
7.18
6.05
153
925.55
T5/T4
7
23.8
15.4
32
422.8
T5/T4
0
1
0.5
35
17.5
T5/T4
0
0
0
123
0
T5/T4
33.5
7
22.75
30
682.5
T5/T4
0
0
0
35
0
T5/T4
4580
4363.5
4476.25
9
40293.25
T5/T4
O/P of
T5 /T4
9
10
Testing of SP kwh incoming meters for vendor analysis on
S/A bench
Testing of SP kwh incoming meters for vendor analysis on
conv. bench
11
Testing of SP prepayment meter on S/A bench
12
Testing of SP static meter on S/A bench
13
Testing of SP meter on conv. Bench with TVE
14
Dial Test on kwh meter after sealing
125209.38
B
PP meter testing:
1
Testing of PP kwh meter on S/A bench/ conv. Bench (rep.)
111.73
117.5
114.62
110
12606.2
T6 /T5
2
Testing of PP BC kwh meter witjhout mech.
26.22
61.08
43.65
556
24269.4
T6 /T5
3
Testing of PP static meter on S/A bench with software
33.25
35.25
34.75
102
3544.5
T6 /T5
4
Testing of PP static meter on S/A bench without software
632.5
217.25
424.88
121
51410.43
T6 /T5
5
Testing of PP static meter on con. Bench with TVE
210.63
0
105.32
94
9900.08
T6 /T5
6
Testing of prepayment meter on S/A bench
0
0
0
98
0
T6 /T5
0
0
0
80
0
T6 /T5
0
0
0
94
0
T6 /T5
103.09
100.75
101.92
140
14266.8
T6 /T5
15.36
20.75
18.06
170
3070.2
T6 /T5
O/P of
T6 /T5
7
8
9
10
Testing of incoming PP kwh meter for vendor analysis on
S/A bench
Testing of incoming PP kwh meter for vendor analysis on
conv. bench
Official testing of PP kwh meter with party /Laboratory
Testing of PP KWH meters
Official testing of PP kwh meter without party
81
119071.7
Total Output per Month
Sr.
No.
ACTIVITY DESCRIPTION
C
H.V. METERING
1
Avg.
o/p
per month
(2006-08)
Std.
man
mins.
Total man
minutes
Grade
2006-2007
20072008
Inspection / Attending to HV metering installation
479.5
355.18
422.34
83
35064.22
T6 /T7
2
Testing and Adjusting HV metering installations
13
25.55
20.83
100
2083
T6 /T7
3
Reading of R.S. M. with presence of TATA
13
6.5
9.75
450
4387.5
T6 /T7
O/P of
T6 /T7
D
RELAY TEST IN RSS WITH ANNOUCIATION RELAY :
1
a) On Outgoing feeders:
41524.72
I) Conventional relay
42.17
37.83
40
287
11480
T 7
ii) numeric relay
23.29
13.17
18.23
145
2643.35
T 7
I) Conventional relay
6.92
5.83
6.38
480
3062.4
T 7
ii) numeric relay
2.67
2.7
2.69
241
648.29
T 7
I) Conventional relay
8.08
8.33
8.21
960
7881.6
T 7
ii) numeric relay
0
0
0
0
0
T 7
I) Conventional relay
6.75
1
3.38
1027
3471.26
T 7
ii) numeric relay
0
0
0
0
0
T 7
RELAY TESTING IN DSS:
0
0
0
480
0
T 7
O/P of
T 7
b) On capacitor relay
c) On Tran. Control Panel for 33 / 22 kv
d) On Tran. Control Panel for 110 kv
2
3
29186.9
OCB TESTING IN:
a) Distribution Workshop
27.17
27.08
27.13
240
6511.2
T 8
b) Substation
0
0
0
480
0
T 8
E
Inspection of Tap Change control panel in RSS
21
31.91
26.46
130
3439.8
T 8
O/P of
T 8
F
S/P Meter Testing on INTRAX Test Bench ( 1 ph
conventional meter NEW)
P/P Meter Testing on INTRAX Test Bench ( 3 ph
conventional meter Repaired)
1337.17
2243.92
1790.54
35
62668.9
T 4/T5
500
408.92
454.46
65
29539.9
T5/T6
G
SP : Single Phase
PP : Poly Phase
BC : Bad Curve
S/ W: Software
S/A : Semi Automatic
RSM : Reference Std. Meter
RSS : Rotating Sub Standard
82
9951
Scheme No.51
Group No. 519
AppendixIII B
( Clause 4.2.1)
AVERAGFE EXPECTED MONTHLY OUTPUT OF
REPAIRS SECTION OF METER & RELAYS DEPARTMENT
(PERFORMANCE OUTPUT OF THE YEAR APRIL -2006 TO MARCH- 2008)
2598.45
0.00
883.20
214.40
0.00
1531.67
5162.50
Avg. o/p per
month
(2006-08)
3362.44
0.00
601.03
240.83
0.00
1825.84
5407.92
Std.
man
mins.
32
39
80
120
120
15
30
Total
107598.08
0.00
88282.40
28899.60
0.00
24387.45
132237.60
378405.13
T-4
T-4
T-4
T-4
T-4
T-4
T-4
0.00
142.88
59.88
386.63
639.17
153.44
558.91
0.00
251.92
218.73
406.83
649.00
406.42
615.25
0.00
197.60
138.80
396.53
594.08
279.93
587.08
96
160
240
30
30
20
3
B8-7=
B1-5=
0.00
31884.00
33312.00
11905.00
17822.40
5595.60
1761.24
7350.84
84625.40
T-6
T-6
T-6
T-6
T-6
T-6
T-6
42.17
23.29
37.83
13.17
40.00
15.23
287
145
11480.00
2643.35
T-6
T-6
6.32
2.67
6.85
2.70
6.38
2.69
500
241
1645.00
647.09
T-6
T-6
8.06
0.00
8.33
0.00
8.21
0.00
689
--
4835.69
0.00
T-6
T-6
2.33
0.00
1.00
0.00
1.67
0.00
1027
-C1
480
1715.09
0.00
23267.12
0.00
T-6
T-6
Total Output per Month
2006-2007
2007-2008
Sr.
No.
A
1
2
3
4
5
6
7
SP Overhaauling /Repairing
Overhauling of new SP kwh Meter
Overhauling of new SP kwh Meter
( when additional
is provided)
Overhauling
of old loop
SP kwh
Meter
Repairing and overhauling of damaged SP kwh meter
Repairing of terminal block
Inspection & check of SP damaged / stop meter
Salvaging/ repairing of SP meter
4126.42
0.00
896.58
257.25
0.00
1720.00
5653.33
B
1
2
3
4
5
6
7
PP Overhauling / Rpairing
Overhauling of new PP kwh meter
Overhauling of old PP kwh meter
Repairing & overhauling of damaged PP meter
Inspection & check of PP kwh meter
Salvaging / scrapping of SP/PP meter
Brazing of PP meter cover
Jewel checking
C
1
Relay Overhauling in RSS while testing
b) On outgoing feeders:
i) Conventional Relay
ii) Numeric relay
c) On capacitor panel
i) Conventional Relay
ii) Numeric relay
d) On the Control panel for 33 /22 kv
j) Conventional Relay
ii) Numeric relay
e) On the transformer control panel 110 kv
j) Conventional Relay
ii) Numeric relay
ACTIVITY DESCRIPTION
Total man
minutes
Grade
2
Relay Overhauling in DSS while testing
0.00
0.00
0.00
3
OCB Testing in
c) Distribution Workshop
d) Sub station
27.17
0.00
27.08
0.00
27.13
0.00
240
480
C3=
6511.20
0.00
6511.20
T-5
T-5
651.67
4.50
657.42
4.33
654.55
4.42
140
3034
49635.60
13410.28
T-7 /T-6
T-7 /T-6
1542.42
361.50
9.06
0.00
3.00
1485.00
301.00
7.33
2.00
3.00
1513.71
331.25
8.21
1.00
3.00
10
85
430
775
960
15137.10
28156.25
3530.30
775.00
2880.00
T-7 /T-6
T-7 /T-6
T-7 /T-6
T-7 /T-6
T-7 /T-6
Punching D
Clock Section
Attending1to message stopped punching clock on emergency basis
2 of punching clock
Overhauling
3
Routine checking
winding of punching clock
e) Dadar /Wadala / Colaba
f) Site Depot
4
Repairing /Overhauling of electronic punching clock
5
Overhauling of Time winding clock
6
Changing the lift of punching clock
SP : Single Phase
PP : Poly Phase
Scheme No.51
83
T-5
Group No. 519
AppendixIV
( Clause 4.2.2)
UNMEASURED WORK
Testing Section:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Testing and calibration of precision instruments
Training
Repairing and maintaining, modifying testing panels
Attending relay complaints ( Investigation of mal-operation of relays in Receiving
Sub station)
Making and fixing potential links and helping in the testing of bad curve meters
Repairing and maintaining, modifying testing panels
Work in connection of new relay /new relay panels
Attending to complaints of AVR
Accucheck testing, TVE, RSS testing
Incoming RSS testing of single phase and three phase
Special instruction and check up of H.V. consumers meters
Attending complaints of H. V. consumer metering from other departments
Keeping accounts of stock of H.V. metering equipment and replenish the stock
To carry out remote metering system wiring
Computer data feeding of all tested meters
RSS /RSM calibration for BEST
Repairs Section
1
2
3
4
5
6
7
8
9
10
Maintenance of panel and equipment
Repairing and overhauling various types of relays, timers, cable fault burning locating
equipments, multimeters, meggers and winding coil of differential relays
Inspecting and maintaining stock of new meters
Fabricating minor items
Attending to relay complaints ( Investigation of mal-operation of relays in Receiving
Sub station)
Repairing and overhauling various types of indicators /recording instruments such as
voltmeter, ammeters, wattmeters, power factor meter, tong tester etc.
Attending to M.D. meter and back stopped complaints at site
Work in connection of new relays / new relay panels
Examination of I/O IQ / Polyphase maters forascertaining characterstics
Training
84
Scheme No.51
Group No. 519
AppendixVA
( Clause 4.2.3.1)
ALLOCATION OF MANPOWER FOR TESTING SECTION OF MRE DEPARTMENT
A
Requirement of Direct Workers
(Based on Input Man-Minutes of 11313 per man per month)
1
Testing Assistant ‗B‘ & ‗C‘ in grade T5 /T4
(For Single Phase Meter Testing)
Expected output per month in standard man-minutes=Sum (A1 to =
A13)
125209.4
Therefore no. of men required at
a)
100% performance level
=
11.07
b)
135% performance level
=
8.20
= 8 say
2
Testing Assistant ‗C‘ in Grade T 4
( For Dial test)
Expected output per month in standard man-minutes=(A14)
Therefore no. of men required at
=
40288.25
a)
100% performance level
=
3.56
b)
135% performance level
=
2.64
= 3 say
3
Assistant Forman in Grade T 6 / T 7
( For H.V.Metering section)
Expected output per month in standard man-minutes=Sum (C1 to C3) =
Therefore no. of men required at
41534.72
a)
100% performance level
=
3.67
b)
135% performance level
=
2.72
= 3 say
85
4
Testing Assistant ‗A‘ in grade T6
(For work done outside department)
Expected output per month in standard man-minutes={D3(a) to E)
=
9951
Therefore no. of men required at
a)
100% performance level
=
0.88
b)
135% performance level
=
0.85 =1 say
5
Testing Assistant ‗A‘ & ‗B‘ in Grade T 6 /T 5
( For work done in the department i.e. Testing of polyphase meter)
Expected output per month in standard man-minutes=(B1 to B 10)
=
119071.7
Therefore no. of men required at
a)
100% performance level
=
10.53
b)
135% performance level
=
7.80=8 say
6
Senior Testing Assistant in Grade T 7
( For Relay Testing)
Expected output per month in standard man-minutes=(D1+D2)
= 8 say
=
29186.9
Therefore no. of men required at
a)
100% performance level
=
2.58
b)
135% performance level
=
1.91=2 say
O/P of Testing of S/P meters on Intrax =57716.38 ( on mandays lost
basis)
Therefore no. of men required at
= 2 say
a)
100% performance level
=
5.10
b)
135% performance level
=
3.78=4 say
8
Testing Assistant ‗B‘ in Grade T 5 /T 6
= 4 say
O/P of Testing of S/P meters on Intrax =45589.01 ( on mandays lost
basis)
Therefore no. of men required at
a)
100% performance level
=
4.03
b)
135% performance level
=
2.96=3 say
= 3 say
86
Scheme No.51
Group No. 519
AppendixV A
( Clause 4.2.3.2)
B. ALLOCATION OF MANPOWER FOR TESTING SECTION
Sr.
No.
Category
Staff at
Staff at
Remarks
100%
135%
16
12
Direct testing on testing benches
1.a)
Testing Assistant‘B‘ in grade T4/T5
b)
--do--
2
Indirect including LR @ 15%
c)
--do--
1
Indirect work computer data entry for testing of
incoming meters & Record maintaining
Total
15
2.a)
Testing Assistant‘A‘ in grade T5/T65
14
12
Direct
b)
Asst. Foreman in grade T 6
3
2
Direct ( H. V. Metering)
c)
--do--
2
Indirect including LR @ 15%
d)
--do--
2+4
Indirect work computer data entry for testing of
incoming meters & Record maintaining
e)
--do--
2
Supervision
Total
24
3.a)
Sr.Testing Assistant‘A‘ in grade T7
2
2
Direct ( relay testing)
b)
Foreman in grade T 7
2
1
Direct ( H. V. Metering)
c)
--do--
1
Indirect including LR @ 15%
Total
4
Std. Test Asst. Gr. T-8
5 a)
Testing Asst. ‗C‘ in grade T 4
b)
--do--
4
Total
6
4
1
(Standard Laboratory)- Indirect Unmeasured activities
13
Direct for Dial Test
1
Indirect including LR @ 15%
15
Meter Mechanic, Gr. T-4
2
Indirect unmeasured work for BC meters
Meter Mechanic, Gr. T 5
1
Helping Tester in Bad curve meters
7
Nawghany
10
8
Repairs Asst., Gr. T -7
1
Indirect helper in measured & un measured working
including LR @ 15%
Indirect unmeasured work ( maintenance of test bench)
9
Foreman, Gr. T-7
3
Indirect unmeasured work ( Appendix IV)
Commissioning of new RSS
10
Foreman Gr. T 7
2+3
Supervision and H. V. Metering installations
11
Foreman General Gr. T8
5+1
Supervision ( Testing & H.V. Metering)
12
Sub Engineer, Gr. G/GV
2
Supervision (Indoor)
13a)
Dy. Engineer, Gr. G/GVI
1
Indirect unmeasured work ( meter checking)
b)
--do--
1+2
Supervision (Outdoor)
14
M.V. Driver G 3
3
H.V. Metering Installations & Relay Testing
C
Total No. of Direct Workers
32
D
Employees strength covered in the scheme
85
87
Scheme No.51
Group No. 519
AppendixV B
( Clause 4.2.3.1)
ALLOCATION OF MANPOWER FOR REPAIRS SECTION OF MRE DEPARTMENT
A
1
Requirement of Direct Workers
(Based on Input Man-Minutes of 11313 per man per month)
Meter Mechanic in grade T4
(For Single Phase Meter overhauling & repairing)
Expected output per month in standard man-minutes=Activity A
=
378405.13
Therefore no. of men required at
a)
100% performance level
=
33.45
b)
135% performance level
=
24.78=25
2
Meter Mechanic in grade T5
( For Poly phase meter & Relay overhauling & repairing)
Expected output per month in standard man-minutes=(B1 to B5 & C3)
say
=25 say
=
101134.6
Therefore no. of men required at
a)
100% performance level
=
8.94
b)
135% performance level
=
6.62=7
Expected output per month in standard man-minutes=Sum (C1 +B6+B7)
=
30626.96
= 7 say
say
Therefore no. of men required at
a)
100% performance level
=
2.71
b)
135% performance level
=
2.01=2
say
= 2 say
4
Repairs Assistant inGrade T 6 / T 7
( Overhauling /repairing punching clock)
Expected output per month in standard man-minutes=Sum (D1 to =
D6)
Therefore no. of men required at
113524.63
a)
100% performance level
=
10.03
b)
135% performance level
=
7.43=7 say
= 7 say
88
Scheme No.51
Group No. 519
AppendixV B
( Clause 4.2.3.2)
B. ALLOCATION OF MANPOWER FOR REPAIRS SECTION
Sr.
No.
Category
1.a)
Meter Mechanic in grade T 4
b)
--do--
2.a)
b)
Sr. Mechanic /Asst. Foreman/ Repairs
assistant in grade T 6
--do--
3.a)
Meter Mechanic in grade T 5
b)
--do--
4
Repairs Assistant ingrade T 7
Staff at
Staff at
100%
135%
33
25
Direct
4
LR @ 15%
Remarks
Total
29
10
5
Direct
1
Indirect including LR @ 15%
Total
6
9
7
Direct
1
LR @15%
Total
8
4
4
Direct
1
Indirect including LR @ 15%
--do-Total
5
5
Nawghany (T1)
21
6
Mucadam T3
3
7
Painter T3
6
8
Sr. Painter ( T 4)
3
9
Asst. Foreman, Gr. T-6
1+3
Indirect unmeasured work
10
Foreman Gr. T 7
1+3
Supervision
11
Foreman General Gr. T8
3+2
Supervision
12
Dy. Engineer, Gr. G/GVI
1
Supervision
13
M.V. Driver G 3
2
Transportation of materials
C
Total No. of Direct Workers
41
D
Employees strength covered in the scheme
95
89
Indirect helper in measured & unmeasured
work including LR @ 15%
Supervision of nawghanies
Indirect
unmeasured
work
(Appendix-I) LR @ 15%
Indirect
unmeasured
work
(Appendix-I) LR @ 15%
including
including
Scheme No.51
Group No. 519
AppendixVI
( Clause 4.4)
INCENTIVE BONUS FOR VARIOUS PERFORMANCE LEVELS
Sr. No. Average Group Efficiency ( A.G. E.) %
Factor for Incentive Bonus ( F.I. B. **)
1
Below 115.00
0
2
115.00 to 117.00
18
3
117.01 to 119.00
20
4
119.01 to 121.00
22
5
121.01 to 123.00
24
6
123.01 to 125.00
26
7
125.01 to 127.00
28
8
127.01 to 129.00
30
9
129.01 to 131.00
32
10
131.01 to 133.00
34
11
133.01 to 135.00
35
12
135.01 to 137.00
36
13
137.01 to 139.00
37
14
139.01 to 141.00
38
15
141.01 to 143.00
39
16
143.01 to 145.00
40
17
145.01 to 147.00
41
18
147.01 to 149.00
42
19
149.01 to 151.00
43
20
151.01 to 153.00
44
21
Above 153.00
45
** Factor for Incentive Bonus is the percentage of Effective Basic salary ( i.e. Basic salary –
3300/- ) payable as Incentive Bonus to members of the group and compliance with other
rules governing the scheme.
Rs. 3300/- is merged D.A. Of March 96 in the Basic Salary
90
Scheme No.51
AppendixVII
( Clause 7.1)
1.0
OTHER RULES GOVERNING THIS SCHEME
The employee will be eligible for 100% of declared Factor of Incentive Bonus (FIB) or
part of declared F.I. B. depending on his absenteeism in a calendar month. The eligibility
of the employee for earning bonus as a percentage of declared F.I. B. will be as per the
following table, subject to para 2.0
Percentage of F.I. B. eligible
out of the declared F.I. B.
______________________
Limit of No. of days absence
(not available for duty)
in the month
________________________
100%
80%
60%
30%
0%
______________________
upto 3 days
4, 5 or 6 days
7, 8 days
9, 10 days
more than 10 days
_________________________
2.0
It there is more than one holiday in a month, the limit of no. of days absence ( not
available for duty ) will be increased by as many as the number of additional holidays (
i.e. in excess of one) unless they are called upon to work on one or more of these
holidays.
3.0
Employee transferred from one post carrying bonus to another also carrying bonus will
be governed by the conditions of the second post unless the transfer is effected on the 16th
of the month or there after, in which case, they will be governed by the conditions
applicable to the first post.
4.0
Employees on deputation for training or refresher course, except those which are
organised by the Undertaking, will be treated as not on duty during the period of
deputation for computing the bonus payable.
5.0
For easy computation and payment of bonus to employees, the amount of Rs. 0.50 or less
will be ignored and Rs. 0.51 and above will be rounded off to Rs. 1/-
6.0
An amount of Rs. 20/- per punishment (censure and above) imposed during the calendar
month and Rs. 20/- per day of absence ( no leave granted) during the calendar month will
be deducted from the bonus. However, deductions will not be carried forward to the next
month.
91
Scheme No.51
AppendixVIII
( Clause 8.1)
PART B : INPUT
B-1 EMPLOYEES ALLOCATED UNDER ITEMS MARKED IN APPENDIX- V
SR. NO.
NAME
CHECK NO
CATEGORY
GRADE
ON ROLL ON
DESIGN
1ST
16TH
ATTENDAN
CE IN DAYS
B-2 EMPLOYEES ALLOCATED UNDER ITEMS NOT MARKED IN APPENDIX- V
SR. NO.
NAME
CHECK NO
CATEGORY
GRADE
ON ROLL ON
DESIGN
92
1ST
16TH
ATTENDAN
CE IN DAYS
Scheme No.51
Group no. 518
AppendixVIIIA
( Clause 8.1)
PART- A:- OUTPUT
OUTPUT AND INPUT STATEMENT OF TESTING SECTION OF METERS AND
RELAYS DEPOARTMENT FOR THE MONTH OF
SR.
NO.
ACTIVITY DESCRIPTION
Std. time
A
SP KWH METER TESTING:
1
Output (Qty.)
Man Mins
Unit of Count
Testing of SP kwh meter on S/A bench (New)
32
Meter
2
Testing of SP kwh meter on con. bench (New)
45
Meter
3
Testing of SP kwh meter on S/A bench (Repaired)
42
Meter
4
Testing of SP kwh meter on con. bench (Repaired)
46
Meter
5
Testing of SP BC kwh meter with mechanics
105
Meter
6
Testing of SP BC kwh meter without mechanics
157
Meter
7
Official Testing of SP kwh meter with party / Laboratory Testing 133
of SPKwh meters
Meter
8
Official Testing of SP kwh meter without party
Meter
9
Testing of SP kwh incoming meters for vendor analysis on S/A 32
bench
Meter
10
Testing of SP kwh incoming meters for vendor analysis on conv. 35
bench
Meter
11
Testing of SP prepayment meter on S/A bench
123
Meter
12
Testing of SP static meter on S/A bench
30
Meter
13
Testing of SP meter on conv. Bench with TVE
35
Meter
14
Dial Test on kwh meter after sealing
9
Meter
B
PP meter testing:
1
Testing of PP kwh meter on S/A bench/ conv. Bench (rep.)
110
Meter
2
Testing of PP BC kwh meter witjhout mech.
556
Meter
3
Testing of PP static meter on S/A bench with software
102
Meter
4
Testing of PP static meter on S/A bench without software
121
Meter
5
Testing of PP static meter on con. Bench with TVE
94
Meter
6
Testing of prepayment meter on S/A bench
98
Meter
7
Testing of incoming PP kwh meter for vendor analysis on S/A 80
bench
Meter
8
Testing of incoming PP kwh meter for vendor analysis on conv. 94
bench
Meter
9
Official testing of PP kwh meter with party /Laboratory Testing 140
of PP KWH meters
Meter
10
Official testing of PP kwh meter without party
170
Meter
C
H.V. METERING
1
Inspection / Attending to HV metering installation
83
Installation
2
Testing and Adjusting HV metering installations
100
Installation
3
Reading of R.S. M. with presence of TATA
450
RSM
153
93
Std. Man
produced
mins.
SR.
NO.
ACTIVITY DESCRIPTION
Std. time
D
RELAY TEST IN RSS WITH ANNOUCIATION RELAY :
1
a) On Outgoing feeders:
Man Mins
Output (Qty.)
Unit of Count
I) Conventional relay
ii) numeric relay
b) On capacitor relay
I) Conventional relay
ii) numeric relay
c) On Tran. Control Panel for 33 / 22 kv
I) Conventional relay
ii) numeric relay
d) On Tran. Control Panel for 110 kv
I) Conventional relay
ii) numeric relay
2
RELAY TESTING IN DSS:
3
OCB TESTING IN:
a) Distribution Workshop
b) Substation
E
Inspection of Tap Change control panel in RSS
F
Meter Testing on INTRAX Test Bench
a) 1-Phase Conventional Meter ( New)
b) 1-Phase Conventional Meter ( Repaired)
c) 3- Phase Static Meter ( New)
d) 3- Phase Static Meter ( Incoming)
e) 3- Phase Conventional Meter ( Repaired)
f) Laboratory 3- Phase Conventional Meter
g) Laboratory 3- Phase Static Meter
SP : Single Phase
S/A : Semi Automatic
PP : Poly Phase
RSM : Reference Std. Meter
BC : Bad Curve
RSS : Rotating Sub Standard
S/ W: Software
94
Std. Man
produced
mins.
SYSTEM PROTECTION DEPARTMENT
Annex- III
The rules, regulations, instructions, manuals
and records held and used by employees of the
department for discharging functions
Sr
No
DESCRIPTION
1
11O / 33kV, 110/11kV EQUIPMENTS DRAWINGS
2
33 kV EQUIPMENTS DRAWINGS
3
22 kV EQUIPMENTS DRAWINGS
4
11 kV EQUIPMENTS DRAWINGS
5
OTHER EQUIPMENTS DRAWINGS
6
CATALOGUE FILE
7
SPECIFICATION FILE
8
DOCUMENTS
9
EQUIPMENTS
10
GENERAL
11
RSS
12
RELAY ORDER FILES
13
ESTABLISHMENT FILES *
14
STORES FILES *
15
ADMINISTRATIVE FILES *
16
TRAINING FILES *
17
STATSTICAL FILES *
18
STUDY FILES *
19
STAFF SERVICE RECORDS FILES *
* Please refer Annex- IV
95
11O / 33kV, 110/11kV EQUIPMENTS DRAWINGS
Sr
No
FILE NAME
DESCRIPTION
1
MR/PROT/EQ.DRG.A1
110 kV VXL Make CP/RP of KHETWADI RSS
2
MR/PROT/EQ.DRG.A2
110 kV GIS Breaker TOSHIBA Make of KHETWADI
RSS
3
MR/PROT/EQ.DRG.A3(1)
110/11 kV UE Make CP/RP of NARIMAN PT. RSS
3A
MR/PROT/EQ.DRG.A3(2)
110/11 kV Control / Alarm / Metering Drawing of
UNITRON Make of NAPEANSEA RSS
4
MR/PROT/EQ.DRG.A4
110 kV GIS BKR AEG Make of NARIMAN POINT RSS
5
MR/PROT/EQ.DRG.A5
110 kV GIS NISSIN Make of BACKBAY RSS
6
MR/PROT/EQ.DRG.A6
110/33 kV ABB Make CP/RP of BACKBAY RSS
7
MR/PROT/EQ.DRG.A7
8
MR/PROT/EQ.DRG.A8
9
MR/PROT/EQ.DRG.A9
10
MR/PROT/EQ.DRG.A10
110/11-11 kV CP/RP 45 MVA of BACKBAY RSS
11
MR/PROT/EQ.DRG.A11
Backbay RSS Bus Transfer & Disconnector Panel &
CP/RP Bus Transfer Scheme
12
MR/PROT/EQ.DRG.A12
Metering Panel of 110 kV BACKBAY RSS
13
MR/PROT/EQ.DRG.A13
14
MR/PROT/EQ.DRG.A14
15
MR/PROT/EQ.DRG.A15
16
MR/PROT/EQ.DRG.A16
17
MR/PROT/EQ.DRG.A17
Drawing For Areva Make CARP at Nariman Point RSS.
18
MR/PROT/EQ.DRG.A18
ABB Make Alarm & Warning Panel For Khetwadi RSS
Type CAP
19
MR/PROT/EQ.DRG.A19
ABB Make Control & Relay Panel For Khetwadi RSS
Type KRTA - 1
20
MR/PROT/EQ.DRG.A20
33kV Incoming Feeder C & R PANEL Easan Reyrolle.
110 kV ABB Make Out Going Panel For NP1 & NP2 Of
BACKBAY RSS
110/33/11 kV ABB Make ANNUNCIATION Panel Of
BACKBAY RSS
110 kV ABB Make CP/RP For 110KV Incomer 1,2,3 of
BACKBAY RSS ABB Volume 3c
Disturbance Recorder, Busbar Protection & Mosaic
Mimic Board of 110 kV Backbay RSS
145 kV GIS LOCAL CONTROL PANEL Of
KHETWADI RSS
110 kV GIS ABB Switchgear BACKBAY RSS Drawing
Volume 3A
TATA's GRANT ROAD Drawing For 110 kV
KHETWADI RSS
96
33 kV EQUIPMENTS DRAWINGS
Sr
No
FILE NAME
DESCRIPTION
1
MR/PROT/EQ.DRG.B1
33 kV Voltas SF6 Breaker Drawing
2
MR/PROT/EQ.DRG.B2
33 kV ABB SF6 Breaker Drawing Nair Hosp. RSS
3
MR/PROT/EQ.DRG.B3
33 kV Siemens GIS Breaker Drawing Dharavi RSS
4
MR/PROT/EQ.DRG.B4
33 kV Jyoti MOCB Breaker
5
MR/PROT/EQ.DRG.B5
33 kV VXL CP/RP Panel Drawing with Static Type Hub- 41 Relay
6
MR/PROT/EQ.DRG.B6(1)
33 kV Alind CP/RP Drawing (Old Version)
6A MR/PROT/EQ.DRG.B6(2)
33 kV Alind CP/RP Drawing (New Version)
7
MR/PROT/EQ.DRG.B7
33 kV ABB GIS Breaker Drawing Backbay RSS
8
MR/PROT/EQ.DRG.B8
33 kV E. E. CP/RP Panel Drawing
9
MR/PROT/EQ.DRG.B9
33/11 kV VXL Make CP/RP Drawing With Conventional
Differential Relay
10
MR/PROT/EQ.DRG.B10
33 kV Siemens VCBs at 110 kV Khetwadi RSS
11
MR/PROT/EQ.DRG.B11
33 kV CP/RP Panels (Numerical) Siemens Drawing
12
MR/PROT/EQ.DRG.B12
33 kV Sw/Gr Drawing Jyoti Make
13
MR/PROT/EQ.DRG.B13
33/22 kV ABB Make SF6 Sw/Gr Drawing Malbar Hill
RSS
14
MR/PROT/EQ.DRG.B14
33/22 kV ABB Make Primary Switchgear Drawing
15
MR/PROT/EQ.DRG.B15
33 kV Siemens Make CP/RP Drawing
16
MR/PROT/EQ.DRG.B16
33 kV ABB Make 1500 MVA SF6 Sw/Gr Drawing
17
MR/PROT/EQ.DRG.B17(1)
33/11 kV CP/RP Areva Make
18
MR/PROT/EQ.DRG.B17(2)
33/22/11 kV CP/RP Areva Make New Updated Drawing
19
MR/PROT/EQ.DRG.B18
20
MR/PROT/EQ.DRG.B19
21
MR/PROT/EQ.DRG.B20
22
MR/PROT/EQ.DRG.B21
23
MR/PROT/EQ.DRG.B22
33 kV, 1500 MVA, VCB, Indoor, Sw/Gr Areva Make
Drawing
33/22/11 kV Transformer CP/RP Type DTRCR Easun
ReyRolle Make Drawing
33 kV ER MAKE CP/RP FOR 33 KV POWER
TRANSFORMER (REV-B Dtd. 18.04.07 (NEW ER
PANEL)
Siemens Make 36 kV GIS at 33 kV Receiving Substation
(Compact RSS)
ER Make CARP (CSPC Relay) at Grant Road 33 kV
Receiving Substation (Drg No ER 1360)
97
Sr
No
FILE NAME
DESCRIPTION
24
MR/PROT/EQ.DRG.B23
25
MR/PROT/EQ.DRG.B24
26
MR/PROT/EQ.DRG.B25
27
MR/PROT/EQ.DRG.B26
28
MR/PROT/EQ.DRG.B27
ER Make CARP (CSPC Relay) at Various 33 kV
Receiving Substation (Drg No ER 1463)
ABB Make 33 kV, 1500 MVA, SF6, Indoor, Sw/Gr
Drawing (Year 2009), ML-1, Colaba-3, Tardeo-2,3
ER make CARP for 33kV Radially connected DSS
(Morarji Mill 33kV / 415 Volts) Drg No 1601
ABB Make 33 kV, 1500 MVA, SF6, Indoor, RMU,
Motorised
CGL make VCB, 1500MVA, Switchgears
22 kV EQUIPMENTS DRAWINGS
Sr
No
FILE NAME
DESCRIPTION
1
MR/PROT/EQ.DRG.C1
22 kV TMG Make ABCB BREAKER Drawing
2
MR/PROT/EQ.DRG.C2
22 kV BB Make ABCB BREAKER Drawing.
3
MR/PROT/EQ.DRG.C3
22 kV BB Make CP/RP Drawing
4
MR/PROT/EQ.DRG.C4
22 kV VOLTAS Make CP/RP Drawing
5
MR/PROT/EQ.DRG.C5
22 kV Breaker Drawing (Internal Wiring Diagram)
11 kV EQUIPMENTS DRAWINGS
Sr
No
FILE NAME
1
MR/PROT/EQ.DRAWING.D1
11 kV Siemens VCB Breaker Drawing.
2
MR/PROT/EQ.DRAWING.D2
11 kV Biecco VCB Breaker Drawing
3
MR/PROT/EQ.DRAWING.D3
11 kV Biecco OCB Breaker Drawing.
4
MR/PROT/EQ.DRAWING.D4
11 kV C & G VCB Breaker Drawing.
5
MR/PROT/EQ.DRAWING.D5
11 kV Jyoti VCB Breaker Drawing.(ABB Relay)
6
MR/PROT/EQ.DRAWING.D6
11 kV Jyoti VCB Breaker Drawing.(L & T Relay)
7
MR/PROT/EQ.DRAWING.D7
11 kV GEC VCB Breaker Drawing.
8
MR/PROT/EQ.DRAWING.D8
11 kV S & S VCB Breaker Drawing.
9
MR/PROT/EQ.DRAWING.D9
11 kV Jyoti VCB Breaker Drawing.(With Static Jyoti
Relay)
DESCRIPTION
98
Sr
No
FILE NAME
DESCRIPTION
10
MR/PROT/EQ.DRAWING.D10 11 kV Voltas VCB Breaker Drawing.
11
MR/PROT/EQ.DRAWING.D11 11 kV RMU Drawing.
12
MR/PROT/EQ.DRAWING.D12 11 kV MET Make DSS Sw/Gr Drawing
13
MR/PROT/EQ.DRAWING.D13
14
MR/PROT/EQ.DRAWING.D14 11 kV, 250 MVA Alstom DSS Sw/Gr VMX Drawing
15
MR/PROT/EQ.DRAWING.D15 11 kV, 350 MVA, Alstom RSS Sw/Gr A To D Drawing
16
MR/PROT/EQ.DRAWING.D16 11 kV OCB BY VCB Sw/Gr VMX Alstom Drawing
17
MR/PROT/EQ.DRAWING.D17 11 kV Jyoti Sw/Gr Wiring Diagram, Argus Relay
18
MR/PROT/EQ.DRAWING.D18
19
MR/PROT/EQ.DRAWING.D19
20
MR/PROT/EQ.DRAWING.D20
21
MR/PROT/EQ.DRAWING.D21
22
MR/PROT/EQ.DRAWING.D22
23
MR/PROT/EQ.DRAWING.D23
24
MR/PROT/EQ.DRAWING.D24
25
MR/PROT/EQ.DRAWING.D25
11 kV, 250 MVA, 400A, C&G Sw/Gr Ala-I / Xlv
Drawing
11 kV, 350 MVA, VCB Areva Make Switchgear
Drawing
11 kV, 350 MVA, VCB Alstom Make Switchgear
Drawing with Areva Relay
11 kV, 350 MVA, VCB Bieeco Make Switchgear
Drawing with Areva Relay
11 kV, 350 MVA, VCB Siemens Make Switchgear
Drawing with Siemens Relay
ER Make 11 kV, 350 MVA Switchgear Drawing
(Dharavi)
ER Make 11 kV 350 MVA Switchgear Drawing (Worli
Dairy RSS)
Schneider Make 11 kV, 350 MVA Swgr Drawing
(Nariman Point RSS)
11kV ERL make VCB switchgear Drawing (Nimkar
Marg, Girgaum)
OTHER EQUIPMENTS DRAWINGS
Sr
No
FILE NAME
DESCRIPTION
1
MR/PROT/EQ.DRAWING.E1 AVR
2
MR/PROT/EQ.DRAWING.E2 Primary And Secondary Injection Set
3
MR/PROT/EQ.DRAWING E3 OLTC Internal Wiring Diagram
4
MR/PROT/EQ.DRAWING.E4 EE Make Relay (Internal Wiring Diagram)
5
MR/PROT/EQ.DRAWING.E5 INTERNAL CIRCUIT OF RELAY TYPE B-3 Reyrolle Make
6
MR/PROT/EQ.DRAWING.E6 Internal Circuit Of Relay Reyrolle O/C, E/F
99
Sr
No
FILE NAME
DESCRIPTION
7
MR/PROT/EQ.DRAWING.E7 Areva Make Frequency Relay Panel Drawing
8
MR/PROT/EQ.DRAWING.E8
SCADA Drawing under Areva SCADA Project (Wadala,
Sitaladevi, Dharavi, KEM BS No 2, Nestle, Sewree)
CATALOGUE FILE
Sr
No
FILE NAME
DESCRIPTION
1
MR/Prot/Cat - 1
U.E. (VXL) make Electromechnical Relay
2
MR/Prot/Cat - 2
E.E Relay Type VTT
3
MR/Prot/Cat - 3
Metropolitan Vickers Electromechnical Relay
4
MR/Prot/Cat - 4
Brown Brovery Electromechnical relay
5
MR/Prot/Cat - 5
Ashida Relay Numeric Protection Relay Protection for Power
System and Master Mind
6
MR/Prot/Cat - 6
Siemens Relay
7
MR/Prot/Cat - 7
L & T Relay
8
MR/Prot/Cat - 8
GEC Alstom Numeric Relay
9
MR/Prot/Cat - 9
Jyoti Static Relay
10
MR/Prot/Cat - 10 ( 1 )
Easun ReyRolle Electromechnical Relay and Other catalogues
11
MR/Prot/Cat - 10 ( 2 )
Easun ReyRolle Numerical Relay
12
MR/Prot/Cat - 10 ( 3 )
DuoBais Auxilliary Argus-8 Relay
13
MR/Prot/Cat - 10 ( 4 )
VATECH RHO Prot & Control Argus-1
14
MR/Prot/Cat - 11 ( 1 )
Alind Static Relay
15
MR/Prot/Cat - 11 ( 2 )
Alind Transformer CPRP
16
MR/Prot/Cat - 11 ( 3 )
Alind TDTA 32,33
17
MR/Prot/Cat - 12
SEG Relay for DSS
18
MR/Prot/Cat - 13
ABB Relay for DSS
19
MR/Prot/Cat - 14 ( 1 )
ABB SPACOM Relay VOLUME 1
20
MR/Prot/Cat - 14 ( 2 )
ABB RE Series Relay CPRP RELAY
MR/Prot/Cat - 14 ( 3 )
ABB Relay SPAC 538C & 531C, SPAJ 115C, SPAD346,
KAD(SBHA& SS) RAICA RXCSF and PSU 14, TSR ICM21,
Transformer Terminal
21
100
Sr
No
FILE NAME
DESCRIPTION
22
MR/Prot/Cat - 14 ( 4 )
ABB relay SPAEC (010, 011) SACO, SPAF(140C & 340C)
23
MR/Prot/Cat - 14 ( 5 )
ABB Buyers SUTOR (1991 - 9L)
24
MR/Prot/Cat - 14 ( 6 )
ABB make Numerical Meter Protection relay type SPEM 14(7)
25
MR/Prot/Cat - 14 ( 7 )
ABB make Protection Relay in Theory and Application
26
MR/Prot/Cat - 14 ( 8 )
ABB make Switchgear (11kV RMU) Relay
27
MR/Prot/Cat - 14 ( 9 )
ABB make SPAC-310C, SPAC 312C Feeder Terminal
28
MR/Prot/Cat - 14 ( 10 )
ABB make meters / Transducers / Disturbance Recorder other
relays Volume II
29
MR/Prot/Cat - 14 ( 11 )
ABB make 110kV Backbay RSS Operation Manual Volume III
30
MR/Prot/Cat - 14 ( 12 )
ABB make Indatac 65C
31
MR/Prot/Cat - 14 ( 13 )
ABB make SPAJ-160C
32
MR/Prot/Cat - 15
Alstom Relay
33
MR/Prot/Cat - 16
GE MULTILIN Relay
34
MR/Prot/Cat - 17
BTH & C&H (E/H) Relay
35
MR/Prot/Cat - 18
AEG Relay
36
MR/Prot/Cat - 19
ABB Distributor Relay
37
MR/Prot/Cat - 20
Doble Products Catalogue
38
MR/Prot/Cat - 21
---
39
MR/Prot/Cat - 22
Protection / Aux. CT PT & Core Balance CT
40
MR/Prot/Cat - 23
Safety Manual for Electrical system
41
MR/Prot/Cat - 24
Multimeter, Tong Testor, Variac, Timers
42
MR/Prot/Cat - 25
Primary & Secondary Current Injection set (Doble)
43
MR/Prot/Cat - 26
Transducers
44
MR/Prot/Cat - 27
HRC Fuse Characteristics
45
MR/Prot/Cat - 28
Doble Protest User Guide
46
MR/Prot/Cat - 29
A.V.R.
47
MR/Prot/Cat - 30
Annunciation Panels of RSS
48
MR/Prot/Cat - 31
11kV Switchgear of Different makes
101
Sr
No
FILE NAME
DESCRIPTION
49
MR/Prot/Cat - 32
Disturbance Recorder ABB make
50
MR/Prot/Cat - 33
3-phase circuit breaker Analyser
51
MR/Prot/Cat - 34
Gas Operated Relays for Transformers
52
MR/Prot/Cat - 35
List of Publications of CBIP
53
MR/Prot/Cat - 36
Software Manual for Spec. Relay
54
MR/Prot/Cat - 37
Cable fault location technique ROBOTRON (M/s. PCI Ltd.)
55
MR/Prot/Cat - 38
Yellow Pages
56
MR/Prot/Cat - 39
Indian Electrical Contractor and traders (Bulletin)
57
MR/Prot/Cat - 40
Products of JVS Electronics Pvt.Ltd.
58
MR/Prot/Cat - 41
59
MR/Prot/Cat - 42
60
MR/Prot/Cat - 43
61
MR/Prot/Cat - 44
62
MR/Prot/Cat - 45
63
MR/Prot/Cat - 46
64
MR/Prot/Cat - 47
Areva training on MICOM Master Class
65
MR/Prot/Cat - 48
Doble India - Power System Prot. Notes Steady State Automated
Relay testing & Dynamic Relay testing
66
MR/Prot/Cat - 49
Easun Reyrolle Ltd. Hosur (Transmission & Distribution)
67
MR/Prot/Cat - 50
VATECH REYROLLE Technical Duobias-M Transformer
Protection
68
MR/Prot/Cat - 51
ABB Feeder Terminal SPAC-310C SPAC 312-C
69
MR/Prot/Cat - 52
Siemens fixed mounted Ring main unit upto 24kV SF6 Insulated
type B/D, J14
70
MR/Prot/Cat - 53
Multi-function meter RISHAB make
71
MR/Prot/Cat - 54
CSPC PL-300 Multi-function Protection
72
MR/Prot/Cat - 55
MICOM P631, P632 & P634 Transformer Differential Protection
Panel
73
MR/Prot/Cat - 56
MECO-G Shortform Catalogue
SCADA System (Central South Zone) training Manual Volume
1&2
Areva MICOM Overcurrent Relay P-111 Theory Application P128 and 124, 121
Alstom MICOM P-125 / P-126 / P-127 Dir & Non-Dir. Relay
SIEMENS make multi-functional Protective relay with Bay
Controller (SIPROTECH 7SJ-62 V4-2)
Siemens make Differential Protection Relay for Transformer
Generator for Motor Bus Bar SIPROTECH 7UT612 V4-0
Ashida Electronics Pvt.Ltd. Operation Manual for OC/EF
Protection Relay
102
Sr
No
FILE NAME
DESCRIPTION
74
MR/Prot/Cat - 57
Operation Manual (Cat) for multi-function meter (GATEC) Meter
used in Easun Reyrolle (CPRP)
75
MR/Prot/Cat - 58
Product Selection Guide Selec
76
MR/Prot/Cat - 59
77
MR/Prot/Cat - 60
78
MR/Prot/Cat - 60-I
79
MR/Prot/Cat - 60-II
80
MR/Prot/Cat - 61
81
MR/Prot/Cat - 62
Catalogue and Manual for OMICRON make CT Analyser
82
MR/Prot/Cat - 63
Manual for ABB make 33kV 1500MVA SF6 switchgears
83
MR/Prot/Cat - 64
Manual for PONOVA make 3 phase Current Injection Set
84
MR/Prot/Cat - 63
Megger Catalogue for Current Injection Set
85
MR/Prot/Cat - 63
ELSPEC Product Catalogue
MICOM- P921 / P922 / P923 Voltage & Frequency Relays Areva
make (Technical Guide)
Catalogue and O & M Manual for Areva make CPRP at Nariman
Point RSS
Integrated Catalogue and O & M Manual for Areva make CPRP at
Nariman Point RSS
Micom P127, P632, MVAAM21, MVAJM25, MVAXM25 Areva
Relay
Catalogue and Manual for ER make CPRP (CSPC Relay) at Grant
Road RSS
SPECIFICATION FILE
Sr
No
FILE NAME
DESCRIPTION
1
MR/Prot/Sp - 1
145kV GIS SW.GR.
2
MR/Prot/Sp - 2
11kV, 350 MVA VCB SW/GR.
3
MR/Prot/Sp - 3
CP/RP for 33/11kV RSS
4
MR/Prot/Sp - 4
36kV GIS SW/GR. 110kV BACKBAY RSS SP.NO.1220395
5
MR/Prot/Sp - 5
110/33kV CP/RP and Metering Panel for 110kV BACKBAY RSS
SP.NO.A-440195
6
MR/Prot/Sp - 6
110V DC, Portable Power Supply SP.NO.9802
7
MR/Prot/Sp - 7
Primary Current Injection set
8
MR/Prot/Sp - 8
Secondary Current Injection set
9
MR/Prot/Sp - 9
Variac, Single Phase SP.NO.9804
10
MR/Prot/Sp - 10
AVR
103
Sr
No
FILE NAME
DESCRIPTION
11
MR/Prot/Sp - 11
Digital Time Interval Meter (Timer)
12
MR/Prot/Sp - 12
Digital Tong Tester and Multimeter
13
MR/Prot/Sp - 13
33kV, SF-6 Sw/Gr. SP.NO.1220181
14
MR/Prot/Sp - 14
11kV, 2300 MVA Cap. Bank 11kV Reactor
15
MR/Prot/Sp - 15
11kV 250 MVA Sw/Gr. for DSS
16
MR/Prot/Sp - 16
High Speed Tripping Relay for SP.NO.9902
17
MR/Prot/Sp - 17
OCB for DSS SP.NO.1280197
18
MR/Prot/Sp - 18
O/C. + E/F Relay
19
MR/Prot/Sp - 19
Capacitor Protection Relay
20
MR/Prot/Sp - 20
Differential & RE/F Relay
21
MR/Prot/Sp - 21
Bus Bar Protection
22
MR/Prot/Sp - 22
Auto Transformer Protection
23
MR/Prot/Sp - 23
Thermal Overload Protection
24
MR/Prot/Sp - 24
Under/Over Voltage Protection
25
MR/Prot/Sp - 25
Motor Protection
26
MR/Prot/Sp - 26
R.M.U.
27
MR/Prot/Sp - 27
Distribution Transformer
28
MR/Prot/Sp - 28
Disturbance Recorder
29
MR/Prot/Sp - 29
11kV 250 MVA VCB for DSS Automation
30
MR/Prot/Sp - 30
Core Balance C.T.
31
MR/Prot/Sp - 31
HRC Fuses
32
MR/Prot/Sp - 32
DC Supply unit
33
MR/Prot/Sp - 33
For 90 MVA Power Transformers
34
MR/Prot/Sp - 34
For 400 kV CP for MSEB
35
MR/Prot/Sp - 35
For T.L. fuses SP.NO.PL1040102
36
MR/Prot/Sp – 36
Supply, installation, testing commissioning & maintenance of 11kV 350 MVA
Indoor VCB Switchgear with local SCADA, SPEC. NO. 1250102 Part -I
Supply, installation, testing commissioning of 11kV, 350 MVA, Indoor,
VCB Switchgear SPEC.NO.1250109. (DGMES Approved) Part - II
104
Sr
No
FILE NAME
DESCRIPTION
37
MR/Prot/Sp - 37
36kV GIS SW/GR. For SENAPATI BAPAT MARG RSS
38
MR/Prot/Sp - 38
Control, Relay Alarm and Metering Panel for SENAPATI BAPAT
MARG RSS, SPEC No 440605
39
MR/Prot/Sp - 39
145 kV GIS for SENAPATI BAPAT MARG RSS SPEC No 440605
40
MR/Prot/Sp - 40
Frequency Relay Panel
41
MR/Prot/Sp - 41
HP Compaq make Laptop Computer
41A MR/Prot/Sp - 41A
42
MR/Prot/Sp - 42
43
MR/Prot/Sp - 43
43A MR/Prot/Sp - 43A
11kV, 350 MVA, Indoor, VCB Switchgear (Spec no 1250107)
Control, Relay and Alarm Panel for Nariman Point 110kV RSS
Control, Relay and Alarm Panel for 33kV Radial (Open Ring)
Operated Network (Compact RSS) (Spect No 044B00009)
36kV GIS at 33kV Receiving Substation (Compact RSS) (Spect No
1390006)
Control, Relay and Alarm Panel for 110kV Khetwadi RSS and 33kV
Grant Road RSS (Spect No 0440008)
Control Relay and Alarm Panel 110 kV for various RSS . (Spect No
044009)
Portable Single Phase Secondary Current Injection Set for Relay
Testing
33kV SF6 Insulated Metal Enclosed Indoor Extensible RMU with
VCB, Spec No 1350010
44
MR/Prot/Sp - 44
45
MR/Prot/Sp - 45
46
MR/Prot/Sp - 46
47
MR/Prot/Sp - 47
48
MR/Prot/Sp - 48
11 KV 350 MVA Indoor VCB SP No. 1250013
49
MR/Prot/Sp - 49
11 KV 250 MVA Indoor VCB SP No. 1390112
50
MR/Prot/Sp – 50
11 KV 250 MVA Indoor VCB SP No. 1390113 ( Horizontal Type)
51
MR/Prot/Sp – 51
52
MR/Prot/Sp - 52
33 KV 1500 MVA Indoor SF 6 VCB Switch Board Panel Set
SP No. 122B0013
33 KV 1500 MVA VCB SW. GR. Bus Coupler For Futurex,
Peninsula & Elphinston Order No. 4200968672
DOCUMENTS
Sr
No
FILE NAME
DESCRIPTION
1
MR/Prot/Doc - 1
Fault Level Calculation
2
MR/Prot/Doc - 2
Steady State / Transient / Dynamic Relay Testing
3
MR/Prot/Doc - 3
BEST Protection System
105
Sr
No
FILE NAME
DESCRIPTION
4
MR/Prot/Doc - 4
CT/PT
5
MR/Prot/Doc - 5
Cable Fault locating technique
6
MR/Prot/Doc - 6
Feeder Protection
7
MR/Prot/Doc - 7
Power Transformer Protection
8
MR/Prot/Doc - 8
Bus Bar Protection
9
MR/Prot/Doc - 9
Oil Filled Cables
10
MR/Prot/Doc - 10
SCADA
11
MR/Prot/Doc - 11
Capacitor & Reactor Protection
12
MR/Prot/Doc - 12
Distribution Transformer Protection
13
MR/Prot/Doc - 13
Motor Protection
14
MR/Prot/Doc - 14
Tata Fault Level & Relay Settings 2
15
MR/Prot/Doc - 15
Earth Mat
16
MR/Prot/Doc - 16
Electro Static Discharge & Control
17
MR/Prot/Doc - 17
IE Rule and Act
18
MR/Prot/Doc - 18
Distance Protection
19
MR/Prot/Doc - 19
Thermal Overload Protection
20
MR/Prot/Doc - 20
Harmonics
21
MR/Prot/Doc - 21
Communication Protocol
22
MR/Prot/Doc - 22
Integrated Protection Control and Communication Benefits and C.B.I.P.
23
MR/Prot/Doc - 23
AVR Document
24
MR/Prot/Doc - 24
Transformer Protection Guide
25
MR/Prot/Doc - 25
Core Balance CT
26
MR/Prot/Doc - 26
Indian Electricity Rules 1937
27
MR/Prot/Doc - 27
Instrumentation & Control
28
MR/Prot/Doc - 28
Electricity Bill 2003
29
MR/Prot/Doc - 29
Protection, Measurement & Control
30
MR/Prot/Doc - 30
O&M Manual for C&G make 16 MVA 33/11kV Transformer for
Ballard RSS
106
Sr
No
FILE NAME
DESCRIPTION
31
MR/Prot/Doc - 31
Seminar Documents
32
MR/Prot/Doc - 32
NPTI Power System Protection Manual, Bangalore
33
MR/Prot/Doc - 33
34
MR/Prot/Doc - 34
35
MR/Prot/Doc - 35
Training Program on Power System Protection at ESCI,
Hyderabad
Technical Data version Jan 2008 IEC 61850/103, Protocol, Tap
Charger Control & Transformer Monitoring System
Training Program on Power System Protection, Selection &
Application of Numerical Relays at ESCI, Hyderabad
EQUIPMENTS
Sr
No
FILE NAME
DESCRIPTION
1
MR/Prot/Eq - 27
Standardization of FRLS control cable & CTs
2
MR/Prot/Eq - 40
SCADA System for RSS (AREVA SCADA Project File)
3
MR/Prot/Eq - 44
CP/RP for 33/11kV Power Transformer
4
MR/Prot/Eq - 44A
Frequency Relay Panel
5
MR/Prot/Eq - 52
11kV 250 MVA VCB to DSS Automation & Distribution
Automation
6
MR/Prot/Eq - 103
Core Balance (Split Core) CT / Protection
7
MR/Prot/Eq - 107
Potential Transformer / RVT / NDR
8
MR/Prot/Eq - 122
33kV, 1500 MVA, VCB / SF6 Switchgear
9
MR/Prot/Eq - 125
11kV, 350 MVA, VCB RSS Switchgear
10
MR/Prot/Eq - 128
OCB for DSS / VCB Testing in Workshop
11
MR/Prot/Eq - 134
11kV R.M.U. at DSS
12
MR/Prot/Eq - 135
33kV R.M.U. at 33kV DSS / HT Room
13
MR/Prot/Eq - 139
11kV, 250 MVA, VCB DSS Switchgear
14
MR/Prot/Eq - 141
Distribution Transformer
15
MR/Prot/Eq - 201
Primary & Secondary Current Injection Set
16
MR/Prot/Eq - 202
AVR Correspondence
17
MR/Prot/Eq - 203
Auxiliary Current Transformer
107
Sr
No
FILE NAME
18
MR/Prot/Eq - 204
Repairing of defective Relays from outside parties
19
MR/Prot/Eq - 205
PC correspondence
DESCRIPTION
20 MR/Prot/Eq - 206
Procurement of equipment / instrument / tools ( Copies of Doble
proposal Secondary Current Injection Set)
21 MR/Prot/Eq - 207
Procurement of relays / AVRs
22
MR/Prot/Eq - 208
Repairing of equipment / instrument / tools
23
MR/Prot/Eq - 209
Scrapping of equipment / instrument / tools
24
MR/Prot/Eq - 210
Scrapping of relays
25
MR/Prot/Eq - 212
Relay correspondence
26
MR/Prot/Eq - 213
Relay connection details for Relay testing
27
MR/Prot/Eq - 214
English Electric (GEC Alstom) Relays
28
MR/Prot/Eq - 215
Jyoti Relay correspondence
29
MR/Prot/Eq - 216
Relay for Capacitor protection
30
MR/Prot/Eq - 217
Measurement of Switchgears Operation timings
31
MR/Prot/Eq - 218
Testing equipments / instrument Inventory
32
MR/Prot/Eq - 219
List of defective relays
33
MR/Prot/Eq - 220
VHF set
34
MR/Prot/Eq - 221
Compact Sub-station
GENERAL
Sr
No
FILE NAME
DESCRIPTION
1
MR/Prot/Relay - 1
Statistical data of Relay Section
2
MR/Prot/Relay - 2
Trial installation of Relay
3
MR/Prot/Relay - 3
DSS SW/GR Test Reports
MR/Prot/Relay - 4
MIS of Relay section
MR/Prot/Relay - 4(1)
Main MIS File
MR/Prot/Relay - 4(2)
North Zone MIS
4
108
Sr
No
FILE NAME
DESCRIPTION
MR/Prot/Relay - 4(3)
Central North Zone MIS
MR/Prot/Relay - 4(4)
Central South Zone MIS
MR/Prot/Relay - 4(5)
South Zone MIS
MR/Prot/Relay - 5(1)
Stores Correspondence
MR/Prot/Relay - 5(2)
Administrative Orders(stores)
6
MR/Prot/Relay - 6
Issue of permanent Gate pass / Entry Pass
7
MR/Prot/Relay - 7
11kv changeover
8
MR/Prot/Relay - 8
Non moving item
9
MR/Prot/Relay - 9
Relay filing index
10
MR/Prot/Relay - 10
Work study of Relay section
11
MR/Prot/Relay - 11
Input/output statements
12
MR/Prot/Relay - 12
Different formats used in Relay section
13
MR/Prot/Relay - 13
Statistical Bulletin of Supply Branch
14
MR/Prot/Relay - 14
Coordination meeting with TPC (TATA Coordination)
15
MR/Prot/Relay - 15
Training programme
16
MR/Prot/Relay - 16
Deputation Reports
17
MR/Prot/Relay - 17
SCADA correspondence
18
MR/Prot/Relay - 18
Discipline & Disciplinary action
19
MR/Prot/Relay - 19
Routine Relay testing programme
20
MR/Prot/Relay - 20
Vehicle
21
MR/Prot/Relay - 21
ISI specification ETDC
22
MR/Prot/Relay - 22
Stores notes position of major items
23
MR/Prot/Relay - 23
Tripping investigation messages
24
MR/Prot/Relay - R24
Sending holiday working booking schedule
25
MR/Prot/Relay - R25
Telephone & Telecom correspondence(Relay)
26
MR/Prot/Relay - R26
HV Consumer
27
MR/Prot/Relay - R27
4
5
Tender Recommendations
109
Sr
No
28
FILE NAME
MR/Prot/Relay - R28
Drawings for comments
MR/Prot/Relay - R28A
Drawing for comments SBM 36kV GIS
MR/Prot/Relay - R28A1
Drawing for comments SBM 36kV GIS Sw/Gr.
MR/Prot/Relay - R28B
Drawing for comments CP/RP 33/22/11kV Areva
MR/Prot/Relay - R28C
Drawing for comments CP/RP 33/22/11kV Transformer
Protection
MR/Prot/Relay - R28D
Drawing for comments 110kV SBM RSS CP/RP
MR/Prot/Relay - R28E
MR/Prot/Relay - R28F
MR/Prot/Relay - R28G
MR/Prot/Relay - R28H
MR/Prot/Relay - R28I
28
DESCRIPTION
MR/Prot/Relay - R28J
MR/Prot/Relay - R28K
MR/Prot/Relay - R28L
MR/Prot/Relay - R28M
MR/Prot/Relay - R28N
MR/Prot/Relay - R28O
MR/Prot/Relay - R28P
MR/Prot/Relay - R28Q
MR/Prot/Relay - R28R
MR/Prot/Relay - R28S
Drawing on comments 110kV Nariman Point RSS CARP
AREVA
Comments on Drawing of Areva make 11kV 350MVA VCB
Switchgears
Comments on Specification of 11kV, 350 MVA VCB
Switchgears (Nariman Point RSS)
Comments for 33kV 1500MVA ABB make SF6 switchgear
Comments on Drawing of ER make CARP (Drawing No ER
1463) for various RSS
Comments on Drawing 11kv VCB FOR NARIMAN POINT
RSS-AREVA MAKE
Comments on drawing on relay based SCADA in N & CN
ZONE by M/S Areva.
Comments on drawing submitted by M/S.CGL for 11kV VCB
Swgr for DSS(2011)
Comments on drawing submitted by M/S. BIECCO for 11kV
VCB for RSS.
Comments on drawing submitted by M/S.EASUN REYROLL
for 11kV VCB for RSS.
Comments on drawing submitted by M/S.EASUN REYROLL
for CARP.
Comments on drawing submitted by M/S. CGL for 33kV VCB
Switchgear for RSS.
Comments on drawing of 11kV VCB for N P RSS submitted by
M/S. AREVA
Comments on drawing submitted by M/S. CGL for 33kV VCB
for RSS.
Comments on drawing of Indoor, 33kV RMU submitted by
M/S. ABB
29
MR/Prot/Relay - R29
E-mails received & sent
30
MR/Prot/Relay - R30
Tender for comments
110
Sr
No
FILE NAME
DESCRIPTION
31
MR/Prot/Relay - R31
Classified list of Indian Standards
32
MR/Prot/Relay - R32
General
33
MR/Prot/Relay - R33
TATA Correspondence
34
MR/Prot/Relay - R34
KLG ISSUES RELATED RSS
35
MR/Prot/Relay - R35
Schedule of Estimates & Schedule of Charges
RECEIVING SUBSTATION (HISTORY & TRIP INVESTIGATION)
File No
Sr.
No.
RSS Name
History
Trip investigation
1
BYCULLA RSS
1- A
1- B
2
MAHALAXMI RSS
2- A
2- B
3
WORLI RSS
3- A
3- B
4
GRANT ROAD
4- A
4- B
5
BALLARD ESTATE
5- A
5- B
6
MALABAR HILL
6- A
6- B
7
WADALA RSS
7- A
7- B
8
PRABHADEVI RSS
8- A
8- B
9
MARINE DRIVE RSS
9- A
9- B
10
APOLLO RSS
10- A
10- B
11
COLABA RSS
11- A
11- B
12
HUTATMA CHOWK RSS
12- A
12- B
13
PAREL RSS
13- A
13- B
14
KUSSARA RSS
14- A
14- B
15
GIRGAUM RSS
15- A
15- B
16
MAHIM RSS
16- A
16- B
17
KINGSWAY RSS
17- A
17- B
111
File No
Sr.
No.
RSS Name
History
Trip investigation
18
BACKBAY 22kV RSS
18- A
18- B
19
ESPALANADE RSS
19- A
19- B
20
DHARAVI RSS
20- A
20- B
21
NARIMAN POINT RSS
21- A
21- B
22
MANDVI RSS
22- A
22- B
23
CUMBALLA HILL RSS
23- A
23- B
24
NAVAL DOCK RSS
24- A
24- B
25
BOMBAY CENTRAL RSS
25- A
25- B
26
LOVE GROVE RSS
26- A
26- B
27
MUMBADEVI 22kV RSS
27- A
27- B
28
MAHIM CAUSEWAY RSS
28- A
28- B
29
SITLADEVI RSS
29- A
29- B
30
KHETWADI 110kV RSS
30- A
30- B
31
TRADE CENTRE 22kV S/S
31- A
31- B
32
MASJID 22kV S/S
32- A
32- B
33
WORLI DAIRY RSS
33- A
33- B
34
SION FORT 33kV S/S
34- A
34- B
35
SEWRI RSS
35- A
35- B
36
NAPEANSEAN ROAD RSS
36- A
36- B
37
G.T. HOISPITAL 33kV RSS
37- A
37- B
38
BACKBAY 110kV RSS
38- A
38- A
38A
BACKBAY 110kV RSS RELAY SETTING
38 (A-1)
39
RACE COURSE RSS
39- A
39- B
40
KEM HOSPITAL RSS
40- A
40- B
41
NAIR HOSPITAL RSS
41- A
41- B
42
Dr BABASAHEB AMBEDKAR RSS
42-A
42-B
43
NESTLE RSS
43-A
43-B
112
File No
Sr.
No.
RSS Name
History
Trip investigation
44
NAVY NAGAR RSS
44-A
44-B
45
RAOLI HILL RSS
45-A
45-B
46
MAZAGAON DOCK RSS
46-A
46-B
47
POCHKANWALA RSS
47-A
47-B
48
PMGP 501 RSS
48-A
48-B
49
TARDEO RSS
49-A
49-B
50
LALBAUG RSS
50-A
50-B
51
J.J. HOSPITAL RSS
51-A
51-B
52
VSNL HT ROOM
52-A
52-B
53
STANDARD MILL RSS
53-A
53-B
54
MORARJI MILL 33KV DSS
54-A
54-B
55
MARATHON FUTUREX HT ROOM
55-A
55-B
56
NIMKAR MARG RSS
56-A
56-B
57
SWAN MILL RSS
57-A
57-B
58
NISH AVIGHNA 33KV DSS (PROP)
58-A
58-B
59
DAWN MILL HT ROOM
59-A
59-B
60
KESHAV & COMPANY
60-A
60-B
61
ELPHINSTONE MILL RSS
61-A
61-B
62
SIMPLEX MILL RSS
62-A
62-B
63
MGM HOSPITAL RSS
63-A
63-B
64
APOLLO MILL RSS
64-A
64-B
65
NAMAN MID TOWN (PARSHAD)
65-A
65-B
66
NIRMAL PARK RSS
66-A
66-B
113
RELAY ORDER FILES
SR.NO.
FILE NO.
SUBJECT
1
MR/Prot/Order/0-1
Easun Rey Rolle Relay (Part – I, II & III)
2
MR/Prot/Order/0-2
Doble USA make 3-Phase Secondary current injection Set
3
MR/Prot/Order/0-3
Siemens Relay
4
MR/Prot/Order/0-4
L & T Relay
5
MR/Prot/Order/0-5
Areva (Alstom) Relay (Part - I & II)
6
MR/Prot/Order/0-6
Motawani Instruments
7
MR/Prot/Order/0-7
ABB Relay
8
MR/Prot/Order/0-8
Accord Enterprises
9
MR/Prot/Order/0-9
Ashida Electronics
10
MR/Prot/Order/0-10
Bieeco Lawriee
11
MR/Prot/Order/0-11
Omicron CT Analyser (Datalock)
12
MR/Prot/Order/0-12
EMCO make AVR
13
MR/Prot/Order/0-13
PONOVA make 3 Phase Current Injecting Set
14
MR/Prot/Order/0-14
Aplab SCR Pre-regulated Bench Rack
15
MR/Prot/Order/0-15
Crompton Greaves
16
MR/Prot/Order/0-16
Sifang
17
MR/Prot/Order/0-17
Schneider
18
MR/Prot/Order/0-18
Predeep Sales & Service AVR
19
MR/Prot/Order/0-19
Single Phase Secondary Current Injection set
114
SYSTEM PROTECTION DEPARTMENT
Annex- IV
The statement of the categories of
documents that are held by or under
department’s control
115
Sr.
No.
File No
Description
Category
1
All files as
mentioned
in AnnexIII
The rules, regulations, instructions, manuals and records
held and used by employees of the department for
discharging functions as per the list attached in AnnexIII, However These files will be scrapped after 5 year
when the equipment is obsolete or taken out of service.
A
ESTABLISHMENT FILES
2
Est.1
Establishment Schedule- staff strength
A
3
Est.2
Creation of post(proposals)
A
4
Est.3
Revalidation of Post
A
5
Est.4
Appointment
A
6
Est.5
Probation/Confirmation
B
7
Est.6
Promotion-Promotion policy
B
8
Est.7
Reversion
B
9
Est.8
Transfer
B
10
Est.9
Separation
A
11
Est.10
Trade Test
B
12
Est.10A
Representation to B.C.
B
13
Est.11
Grading of Staff
A
14
Est.12
Seniority List
B
15
Est.13
Acting Arrangement
B
16
Est.14
Deputation
B
17
Est.15
Loan Arrangement
C
18
Est.16
Attendance
B
19
Est.17
Leave
B
20
Est.18
Working Hours
C
21
Est.19
Discipline & Disciplinary Action
B
22
Est.20
Standing Orders
A
23
Est.21
Service Regulation
A
24
Est.22
Fidelity Insurance
B
116
Sr.
No.
File No
25
Est.23
Overtime/Holiday Working
B
26
Est.24
Meal Allowance
C
27
Est.25
Other allowance
C
28
Est.26
Payment & Recoveries
B
29
Est.27
ID/BT(Bus Pass)
C
30
Est.28
Uniforms - Clothing
B
31
Est.29
Periodical Returns(Ex.Employee)
C
32
Est.30
Festival Advance
C
33
Est.31
Grains
C
34
Est.32
Quarters
B
35
Est.33
Scholarship
C
36
Est.34
PF/SF/EMF/FP Scheme & Gratuity
C
37
Est.35
Welfare
C
38
Est.36
Certificates - Circular for issue of certificates, copies of
certificates issued to employees
C
39
Est.37
Civil Defence
C
40
Est.38
Accident & Assaults (Except Ele. Acc)
C
41
Est.39
Medical
C
42
Est.40
Residential Address
C
43
Est.41
Voluntary Subscription
D
44
Est.42
Qualification & Experience for post
A
45
Est.43
Employees State Insurance
C
46
Est.44
Incentive Bonus Scheme
B
Description
Category
STORES
47
Stores - 1
Stores matters & Procedures
A
48
Stores - 2
Specification ISI
A
49
Stores -3
Literature Technical Data
B
50
Stores - 4
Stores Material Catalogue
A
117
Sr.
No.
File No
51
Stores - 5
Stock position of vital item
C
52
Stores -6
Requirement of Material
C
53
Stores - 7
Annual Contract
B
54
Stores - 8
Material Test Report/Inspection Report
B
Description
Category
55
Stores - 19 Scrapping & disposal
B
56
Stores - 26 Purchase form/Tender/Quotation
B
ADMINISTRATIVE FILES
57
Adm.1
Vehicles
C
58
Adm.2
Telephones & Telecomm.
C
59
Adm.3
Office Building
C
60
Adm.4
Office Accommodation
A
61
Adm.5
Locks & Keys
B
62
Adm.6
Office Furniture & Equip- Capital
A
63
Adm.7
Office Furniture & Equip- Dead Stock
A
64
Adm.8
Tools & Equip Capital
A
65
Adm.9
Tools & Equip Dead Stock
A
66
Adm.10
Stationary & Printing
D
67
Adm.11
Capital Inventory
A
68
Adm.12
Departmental Manual
A
69
Adm.13
Administrative Report
A
70
Adm.14
BEST Committee & Corporation matters
B
71
Adm.15
Circulars
B
72
Adm.16A
Procedure Orders-Guidelines
A
73
Adm.17
Delegation of powers
A
74
Adm.18
Administrative Orders
A
75
Adm.19
Confidential Papers
A
76
Adm.20
Security Arrangement
B
77
Adm.21
Theft & Properties
B
118
Sr.
No.
File No
78
Adm.22
Strikes
C
79
Adm.23
Records Classification
A
80
Adm.24
Audit queries
B
81
Adm.25
Accounts matters
B
82
Adm.27
Budget Estimates
B
83
Adm.28
Budget Control
B
84
Adm.31
Supply Branch Conference
A
85
Adm.34
Stores & Engineering Conference
B
86
Adm.40
Union Matters
B
87
Adm. 41
Public Relations.
C
88
Adm.45
Canteen
C
89
Adm.46
Imprest Cash
B
90
Adm.48
Meeting of Other Departments
B
91
Adm.49
Reports on visits & inspection
C
92
Adm.52
Awards/Rewards to employee
B
93
Adm.58
Instruction given by AGMS/CES
A
Description
Category
TRAINING
94
Trg.1
Training - Policy & Suggestions.
C
95
Trg.2
Training - in outside institutions.
C
96
Trg.3
Training - Prob Engr./SSA/Engg. Student.
C
97
Trg.5
Training in M.V. Driving.
C
98
Trg.9
Technical Lectures and Visits
C
99
Trg.11
Workers Education Scheme
C
STUDY
100
Study - 11
Computerization
B
101
Study - 15
I.B. Scheme & Operational Efficiency.
A
119
Sr.
No.
File No
Description
Category
STATISTICS
102
Stat - 28
Management Information.
A
103
Stat - 29
System Coincide KVA Maximum Demand (MD).
C
104
Stat - 36
Monthly Statistical Returns of Electric Supply
A
105
Stat - 53
Schemes - Monthly Reports of Pending Cases.
C
STAFF RECORDS
106
Service Record Files of the Officers & Staff
CATEGORY WISE PERIOD:
A - INDEFINITE PERIOD B - 10 YEARS
C - 5 YEARS D - 3 YEARS E - 2 YEARS
120
A