POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING
OF 230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS
AT KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
VOLUME 3 OF 3
BID FORM, PRICES AND SCHEDULES
DECEMBER 2014
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
INDEX TO VOLUMES
Volume 1 of 3
Section 1 - Instruction to Bidders
Section 2 - Bid Data Sheet
Section 3 - Evaluation and Qualification Criteria
Section 4 - Bid Forms
Section 5 - Eligible Countries
Section 6 - Employer’s Requirements
Section 7 - General Conditions of Contract
Section 8 - Special Conditions of Contract
Section 9 - Contract Forms
Volume 2 of 3
Scope of Work
Technical Specifications
Drawings forming Part of Specifications
Volume 3 of 3
Bid Forms
Schedule A
Schedule B
Schedule C
Schedule D
Schedule E
Schedule F
Schedule G
Schedule H
Schedule I
Schedule J
Schedule A: Requirements
Introduction & Preamble to the Price & Technical Schedules
Bid Prices
Bar Chart Programme of Key Activities
Manufacturers, Places of Manufacture and Testing
Technical Particulars and Guarantees
Departure from Specifications
Proposed Alternative Standards to which Equipment shall Provided
Proposed Contract and Site Organization
Drawings and Documents to be Submitted with Bid
Proposed Subcontractors
SA-2
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE A
INTRODUCTION & PREAMBLE TO THE PRICE
& TECHNICAL SCHEDULES
Schedule A: Requirements
SA-3
SCHEDULE A: INTRODUCTION & PREAMBLE TO THE
PRICE & TECHNICAL SCHEDULES
BRIEF DESCRIPTION OF THE WORKS
1) SECTION OF WORK NO. 1: 230KV EXTENSION IN EXISTING 230/132KV KHULNA SOUTH
SUBSTATION
230 kV Outdoor Double busbar with Circuit breaker bypass arrangement Switchyard
The existing 230kV outdoor switchyard has two spare bays for the connection of two overhead line
circuits to upcoming Mongla 230kV substation. This contract includes the design, supply, installation
& testing & commissioning of new overhead lines terminal equipment in the switchyard, associated
line control, protection & metering equipment, extension of fiber optic multiplexer equipment for
protection & communication and extension of existing digital fault recorder (SIMENS, Germany
make) & integration with the existing NLDC system and associated equipments with all related civil
works. The contract also includes supply of line protection panels for two overhead lines and
fiber optic multiplexer equipment for the remote station at Mongla.
DESCRIPTION OF THE WORKS
The descriptions presented below outline the basic requirements for each Section of the Works.
This schedule is not intended to detail each and every item necessary to complete the works, but to
outline the facilities to be provided under the contract. The Contractor shall be responsible for
ensuring that all items necessary for the safe, efficient and complete functioning of the work in
compliance with the Specification are provided, be they described or not.
The following method of reference shall be used to identify the various items required.
ITEM
A
B
C
D
E
F
G
H
I
J
PLANT DESCRIPTION
230 kV Switchgear
Control, Protection, Metering.
Multicore Cables
Earthing and Lightning Protection
Batteries, Chargers and DC Distribution
LVAC Distribution
Civil Works and Foundations
Building Lighting, Small Power and Air Conditioning
Fiber Optic Multiplexer Equipment for Communication and Protection and necessary
RTUs required for and integration with the existing NLDC system.
Digital Fault and Disturbance Recorder (DFDR)
The Contractor is to carry out the works taking full account of the limitations imposed by existing
sites and the requirement to maintain all existing supplies during the construction works. Any
temporary works, structures, connections, etc, necessary to achieve this requirement are to be included
in the bid price.
Schedule A: Requirements
SA-4
SCHEDULE A
REQUIREMENTS
I) SECTION OF WORK NO.1: EXTENSION OF EXISTING KHULNA SOUTH 230KV
SUBSTATION FOR TWO NOS. LINE BAYS TO MONGLA
The equipment to be supplied, installed and commissioned is shown on Drawing No.
PGCB/DESIGN/2014/SS/KS-02 & 03, with single line diagram of main connections, control and
protection requirements shown in drawing no. PGCB/DESIGN/2014/SS/KS-01:The Contractor shall be deemed to have visited site, inspected, gathered data and verified details of the
as-built system in order to design supply and interface his new equipment. All necessary materials,
adjustment, dismantling, remedial, and tidying up work in order to complete the work specified shall
be included in the contract price. This includes all ancillary equipment such as cabling, earthing,
LVAC and DC supplies, steel support structures, lightning protection, switchyard lighting and
associated civil works, foundations, drainage, cable trenching and site finishes.
Item
1A
Description
245 kV Switchgear, equipment connection and steel structures
The 245 kV switchgear shall comply with the particular requirements as detailed in
the Schedule of Technical Requirements included as Appendix A1 to this section and
shall comprise the following:Design, supply, delivery, installation, testing & commissioning of two spare 230 kV
Overhead Line circuit bays in the existing 230kV double busbar switchyard
arrangement to connect two 230kV overhead line circuits from upcoming Maitree
Super Thermal Power Project (STPP) 230kV substation complete with all necessary
ancillary equipment and associated works.
1A1
Design, supply, delivery, installation, testing & commissioning of new two (2) sets of
245 kV, 3150A, 40kA, 50Hz, 1050kVp BIL, live tank type, single-pole operation,
SF6 gas circuit breakers with spring-stored energy operating mechanism.
1A2
Design, supply, delivery, installation, testing & commissioning of new two (2) sets of
245kV, 1600A, 40kA, 50Hz, 1050kVp BIL, single throw horizontal center air break
, post type, motor operated disconnectors with motor and manual operated earthing
switches.
1A3
Design, supply, delivery, installation, testing & commissioning of new eight (8) sets
of 245kV, 1600A, 40kA, 50Hz, 1050kVp BIL, single throw horizontal center air
break, center rotating post type, motor operated disconnectors.
1A4
Design, supply, delivery, installation, testing & commissioning of new six (6) nos. of
single-phase, 4-core, multi ratio, 245kV, 1600A, 40kA, 50Hz, 1050kVp BIL, post
type current transformer.
Schedule A: Requirements
SA-5
1A5
Design, supply, delivery, installation, testing & commissioning of new six (6) nos. of
single-phase, 245kV, 40kA, 50Hz, 1050kVp BIL, capacitor type voltage
transformers.
1A6
Design, supply, delivery, installation, testing & commissioning of six (6) nos. of
186kV continuous operating voltage, 10kA nominal discharge current, 50Hz, Heavy
duty station class, gapless metal oxide type, single phase surge arresters.
1A7
One (1) lot of conductors for jack bus , jumper & equipment connections as required
to complete 245kV switchgear as specified in the technical specifications and bid
drawings.
1A8
Design, supply, delivery, installation, testing & commissioning of four (4) nos. of
245kV post type support insulators required for completing 245kV switchgear
connections.
1A9
One (1) lot of insulators and fittings including all necessary clamps and connectors
required for completing 245kV switchyard specified in the technical specifications
and bid drawings.
1A10
One (1) lot of steel structures for gantry and equipment supports structures including
nuts & bolts and cable tray including all necessary fitting & fixing accessories
required for completing 245kV switchgear specified in the technical specifications
and bid drawings.
1B
Control, Protection and Metering
All control, protection, alarm and metering panels are to be installed in the existing
control building.
The equipment to be supplied, installed and commissioned is shown on Drawings
nos. PGCB/DESIGN/2014/SS/KS-01:-
1B1
Complete Control & protection panels for two (2) sets of overhead line circuits to
Mongla (Mongla -1 & 2).
1B2
Extension, connection and modifications to existing busbar protection to
accommodate two new lines and synchronization with existing system.
1B3
Supply, delivery and installation of Tariff meter in the existing panels. The tariff
meters shall be programmable & recordable digital 3-phase, 4-wire import and
export MWh and MVArh meters (accuracy class 0.2) including necessary
software for two Overhead Line feeder circuit. For each feeder minimum two
meters (one main & one check) shall be provided. Tariff Metering is to be supplied
from Europe, USA or Japan origin. Printed catalogue, operation and service manual
are to be provided.
Schedule A: Requirements
SA-6
1B4
Complete line protection panels for two (2) sets of overhead line circuits from Khulna
South (Khulna South-1 & 2) at Mongla. The panels shall be supplied only and
handover for future installation by other contractor at Mongla.
1C
Multicore Cables
1C1
Complete set of multicore low voltage XLPE auxiliary power and control cables
required for connection of all items and equipment supplied under the Contract shall
be supplied, installed, glanded, terminated and have individual cores identified.
1D
Earthing and Lightning Protection
1D.1
Complete set of design, supply and installation for extending of earthing system and
lightning protection screen including connections, connectors and clamps, for the
additional switchgear and ancillary equipment being installed.
1E
DC Distribution Connection
1E1
One (1) lot of modification of existing DCDB system by necessary additional
switchgear (MCB/MCCB), cables, connectors etc. required for the additional plant
being installed, shall be provided.
1F
LVAC Distribution Connection
1F1
One (1) lot of modification of existing LVAC existing systems for substation services
including supply of all necessary additional switchgear (MCB/MCCB), bus material,
connection cables, lugs etc. to provide the 415/240V supplies to all equipment being
supplied under this turnkey bid.
1G
Civil Works and Foundations
1G1
Complete design, supply and construction of all civil items required for the
outdoor works suitable for switchyard gantry & equipment foundations, cable
trenches, surfacing, gravel laying and drainage system etc.
1H
Lighting & Small Power.
1H1
Complete design and calculations, supply, installation and commissioning of
equipment to provide lighting (sodium light) for security, roadway and switchyard
and emergency DC lighting at strategic locations for equipment operations and
inspections to suit the substation overall arrangement for the additional switchgear
and ancillary equipment to be installed under this turnkey bid.
1I
Fibre Optic Multiplexer Equipment for Teleprotection and Communication
1I1
The equipment to be supplied, installed and commissioned shall be as shown on
Drawing Nos. PGCB/DESIGN/2014/SS/KS-04. The scope of supply is summarised
as follows:1 set - Extension of existing teleprotection equipment (AREVA, France make DIP
5000 type) and fibre optic multiplexer equipment (AREVA, France make
MSE 5010 type/ABB, Switzerland make FOX515 type) at Khulna (South)
Substation for two new line circuits (Mongla 1 & 2) for protection and
communication (voice and data)
Schedule A: Requirements
SA-7
1I2
One (1) lot of underground optical fibre (48 cores) cables from terminal box at
230kV gantry structures (For Mongla-1 & 2 line feeders) to MDF (Main distribution
Frame) in control room. The Contract includes supply and installation of underground
optical fibre and pigtail cables with adequate length.
1I3
Extension of existing Remote Terminal Units (RTU, AREVA, France make C262
type) system for new two line bays and connection & integration with the existing
NLDC (National Load Despatch Center) system.
1I4
One (1) lot complete set of design, supply, installation and commissioning of fibre
optic multiplexer equipment covering five (5) related substation optical interfaces
with necessary works to interface with existing system is to be provided for:
21 relay for each transmission line protection (through fibre cores)
21 relay carrier signal (main and back-up)
SCADA data from switchgear and control system
Hot-line telephone system
Substation LAN system
This equipment including panels shall be for supply only and handed over for future
installation by other contractor at Mongla.
1J
Digital Fault Disturbance Recorder
1J1
Extension and modification of existing Digital Fault Disturbance Recorder (DFDR)
system (SIEMENS, Germany make SIMEAS model DFR) to monitor the proposed
Mongla 1 & 2 line feeders using available analog and digital inputs in existing DFDR
system.
Schedule A: Requirements
SA-8
APPENDIX A1
SCHEDULE OF TECHNICAL REQUIREMENTS OF
245kV AIR INSULATED SWITCHGEAR (AIS)
Sl. No. Description
1.
2.
3.
Site Condition
Max. Altitude above sea level
Max. Ambient temperature outdoor
Min. Ambient temperature outdoor
Max. Ambient relative humidity
Max. Seismic acceleration at floor level
- horizontal
- vertical
Unit
M
230kV
%
not more than 1000
+45
+4
100
G
G
0.2
0.2
Electrical Data
Rated Voltage
Rated Frequency
Insulation Level
- lightning impulse withstand
- switching impulse withstand
- 50 Hz withstand 1 minute
Rated continuous current at 40
ambient temperature
- main busbar
- line bay
Rated short time withstand
- current
- duration
Rated peak withstand current
Secondary Circuit
Auxiliary voltage
- for control and signal
- for remote control
V dc
V dc
110
110
V ac
%
415/240
-15/+10
- for heating
- tolerances
Schedule A: Requirements
KV
Hz
245
50
kVp
kVp
KV
1050
—
460
A
A
2000
1600
KA
Sec
KA
40
1
100
SA-9
4.1
245kV Class Circuit Breakers
1
Type
Outdoor, SF6 insulated,
live tank type
2
Standard
IEC 62271-100
3
Rated voltage
245 kV
4
Rated short-duration power frequency withstand voltage (1 min.)
- Between line terminal and ground
- Between terminals with CB open
- Between terminals with isolator open
460 kV rms
460 kV rms
530 kV rms
Rated lightning impulse withstand voltage
- Between line terminal and ground
- Between terminals with CB open
- Between terminals with isolator open
1050 kV peak
1050 kV peak
1200 kV peak
6
First pole to clear factor
1.5
7
Rated current
3150 A
8
Rated short circuit breaking current
40 kA rms
9
Rated short circuit making current
100 kA peak
10
Short time withstand current for 1 sec.
40 kA rms
11
Max. radio interference voltage for frequency between 0.5MHz 1000 micro V
and 2MHz in all positions
(at 156 kV rms)
12
Total closing time
Not more than 150 ms
13
Total breaking time
65 ms
14
Operating mechanism
Spring or Springhydraulic combination
15
Rated duty cycle
O-0.3S-CO-3min-CO
16
Reclosing
Single phase & Three
phase auto-reclosing
17
Creepage distance
25 mm/kV
18
Number of closing coils
1
19
Number of tripping coils
2
20
Number of auxiliary contacts for:
- Making
- Breaking
- Middle position
Min. 12
Min. 12
0
Protection class
IP55
5
21
Schedule A: Requirements
SA-10
5.
245kV Disconnector Switches/Isolators and Earthing Switch
1
Type
Outdoor,
single throw horizontal center air
break, center rotating post type,
2
Standard
IEC 62271-102
3
Rated voltage
245 kV
4
Rated short-duration power frequency withstand voltage
(1 min.)
460 kV rms
- To earth
530 kV rms
- Across isolating distance
5
Rated lightning impulse withstand voltage
- To earth
- Across isolating distance
6
1050 kV peak
1200 kV peak
Rated normal current
-
Line bay
1600 A
7
Rated short circuit current (Ith), 1s
40 kA rms
8
Rated short circuit current (Idyn)
100 kA peak
9
Creepage distance of insulator
25 mm/kV
10
Operating mechanism of isolator / earthing switch
AC motor operated
11
Number of auxiliary contacts for main switch
- Making
- Breaking
- Middle position
Min. 6
Min. 6
Min. 1
Number of auxiliary contacts for earthing switch
- Making
- Breaking
- Middle position
Min. 6
Min. 6
Min. 1
12
13
Radio interference level for 0.5 MHz to 2 MHz
6.
Instrument Transformers
6.1
Instrument Transformers
1000 micro V
(at 156 kV rms)
245 kV
1
Rated lightning impulse withstand
voltage
2
Rated switching impulse withstand
voltage
3
1050 kVp
-
Power frequency withstand voltage (1
min.)
Schedule A: Requirements
460 kVrms
SA-11
-
4
Corona extinction voltage
156 kVrms
5
Radio interference level for 0.5 MHz to
2 MHz
1000 micro V
(at 156 kVrms)
6
Partial discharge level
10 pC
7
Type of insulation
Class A
6.2
1
245kV Class Current Transformers
Core Nos.
4
2
Ratio
1600-800/1
3
Class of accuracy
4
Burden (VA)
5
Min. knee point voltage at lowest ratio (Volts)
6
Max. magnetizing current guaranteed at
knee point voltage & the lowest ratio(mA)
M.R.
7
Max. resistance of secondary winding at
75 0C and at lowest ratio(ohms)
M.R.
6.3
1
-
- Protection : 5P20
- Metering : Class 0.2
30VA
245kV Class Voltage Transformer
Rated voltage levels
>1kV@ max ratio for protection
core
<150V@ max ratio for metering
core
245 kV
2
High frequency capacitance for entire Within 80% to 150% of rated capacitance
carrier frequency range
3
Rated Voltage Factor
1.2 continuous; 1.5 for 30 seconds
4
Rated total capacitance(pF)
4400, +10% and -5%
5
Phase angle error (minutes)
20
6
Acceptable limit of variation of total + 50% and -20% of the rated capacitance
capacitance over the entire carrier
frequency range
7
Equivalent series resistance over the entire Less than 40
carrier frequency range or temperature
range (ohms)
8
Stray capacitance and stray conductance As per IEC-358
of low voltage terminal over the entire
capacitance.
9
Standard reference range of frequencies 97% to 103% for protection
for which the accuracies are valid
99% to 101% for metering
Schedule A: Requirements
SA-12
10
Core details
Core-I :
Core-II :
11
Purpose
Protection
Metering
12
Secondary Voltage
110/√3
110/√3
13
Burden (VA)
150
150
14
Class of accuracy
3P
0.5
15
Rated total thermal burden(VA)
150
150
16
One minute power frequency
4(10 if the low voltage terminal is exposed)
withstand voltage between LV terminal
and earth(kV rms)
17
Withstand voltage for secondary winding 2
(kV rms)
7
1
Surge Arresters
Max. highest system voltage
245kV
2
Type
Outdoor type, ZnO, Gapless
3
Standard
IEC 60099-4
4
Rated voltage
186kV
5
Max. continuous operating voltage
160kVrms
6
Nominal discharge current
10kA
7
Discharge class
Heavy
duty 3
8
Surge counter
Yes
9
Leakage current detector
Yes
Schedule A: Requirements
SA-13
APPENDIX A2
SCHEDULE OF TECHNICAL REQUIREMENTS OF
FIBRE OPTIC MULTIPLEXER EQUIPMENT
UNIT
SL.Nos.
DESCRIPTION
1.0
GENERAL:
1.1
1.2
1.3
1.4
1.5
1.6
1.7
2.0
2.1
3.0
3.1
3.2
Type of multiplexer
Complying to ITU-T rec.
Transmission Capacity
Access capacity on 64 kbit/s
Access capacity on 2 Mbit/s
Redundant central processor
Digital cross connect function
Available AGGREGATES:
Optical aggregates (ITU-T G.957)
Available TRUNK INTERFACES:
HDB3, 2 Mbit/s interfaces per module
Complying to ITU-T rec.
3.3
HDSL, 2Mbit/s interface: no of copper wires
Capacity on 2Mbit/s or on 1Mbit/s
Capacity selectable
4.0
4.1
4.1.1
4.1.2
Available USER INTERFACES
Voice interfaces for trunk lines:
1 + 1 com path protection, available for all
Analogue, 4wire with E&M: Input level
Output level
Analogue, 2wire with E&M: Input level
Output level
Digital, 2Mbit/s CAS or PRI
Voice interfaces for remote subscriber:
2wire, subscriber side
2wire, PABX side
Integrated teleprotection
Interface for Commands:
Number of independent commands
Transmission time max.
Signal voltage
1 + 1 com path protection
Interface(s) for Differential Protection:
Electrical interface: G.703
Optical Interface
Data: channels per module
4.1.3
4.1.4
4.2
4.2.1
4.2.2
4.3
4.3.1
4.3.1.1
4.3.1.2
4.3.1.3
4.3.1.4
4.3.2
4.3.2.1
4.3.2.2
4.4
Schedule A: Requirements
SA-14
Mbit/s
channels
channels
REQUIRED
SDH: ADM
Yes
STM-4: 620
Minimum 200
Minimum 40
Shall be available
Fully non-blocking
L-1.1, L-1.2
Nos.
Nos.
ch
ch / pair of wire
Minimum 8
G.703,
transparent
G.704, selectable
4
or
2
30 or 15
30
/
2
pairs
30
/
1
pair
15 / 1 pair
Yes
dBr
+7.5 .. –16
+7.0 .. –16.5
+6.5 .. –12.5
–1.0 .. -20
dBr
Yes
dBr
dBr
Nos.
ms
Vpeak
kbit/s
kbit/s
-5 .. +4 / -7.5 .. -1
-5 .. +4 / -7.5 .. -3
4
6
250
Yes
64
Minimum 64
4.4.1
4.4.2
4.4.3
4.4.4
4.4.5
4.4.6
4.4.7
4.5
4.5.1
4.5.2
4.6
4.6.1
4.6.2
4.6.3
4.6.4
1 + 1 com path protection, available for all
V.24/V.28 (RS-232): up to 38.4kbit/s
V.11/X.24 (RS-422): 64kbit/s
V.35: 64kbit/s
V.36 (RS-449): 64kbit/s
G.703: 64kbit/s
Ethernet:
10/100 BaseT
WAN capacity
Protocols
Integrated alarm gathering module:
Number of external alarms per module
Auxiliary power supply for ext. contacts
Network Management System
Type/Name of configuration tool
For fault / configuration management
For local / remote operation
Data communication network (DCN)
4.7
4.7.1
4.7.2
4.7.3
4.8
4.8.1
4.8.2
Ambient Conditions:
Storage: ETS 300 019-1-1, class 1.2
Transport: ETS 300 019-1-2, class 2.2
Operation: ETS 300 019-1-3, class 3.1E
Power Supply
Operation
Fully redundant power supply
Schedule A: Requirements
SA-15
Nos.
Nos.
Nos.
Nos.
Nos.
Nos.
Mbit/s
Nos.
Yes
4
4
4
2
8
1
Min: 2x 2Mbit/s
Min.: IP
Min. 20
Yes
Yes / yes
Yes / yes
Ethernet / IP
Ethernit / OSI
°C / % hum
°C / % hum
°C / % hum
VDC
-25 .. + 55 / class 1.2
-25 .. + 70 / class 2.2
-5 .. +45 / class 3.1E
48 / 60
Yes
(-15/+20%)
or
APPENDIX A3
SCHEDULE OF TECHNICAL REQUIREMENTS OF
INSULATOR
1
2
3
4
5
6
7
8
Rated Voltage
Lightning impulse withstand positive and
negative (kVp) (Dry and wet)
Switching impulse withstand voltage (kVp)
One min. power freq. withstand voltage (kVrms)
(Wet and Dry)
Total creepage distance (mm) pedestal
Total min. cantilever strength (kg)
Corona extinction voltage (kVrms)
Total min. height of insulator (mm)
245kV
1050
460
-
6125
800
156
2500
APPENDIX A4
SCHEDULE OF TECHNICAL REQUIREMENTS OF
INSULATOR STRING
1
2
3
4
5
6
7
8
9
10
11
12
Rated voltage
Type
Size of insulators units (mm)
Creepage distance of individual insulator unit
(Minimum or as required to obtain total
creepage distance, mm)
Electromechanical strength (kN)
Power frequency withstand voltage of the
complete string (kVrms)
Lightning impulse withstand voltage of the
complete string with C.C. ring (Dry and wet, kVp)
Switching surge withstand voltage of the complete
string with C.C. rings(Dry & wet, kVp)
Power frequency puncture withstand voltage for a
string insulator unit
Minimum corona extinction voltage level of the
complete string with C.C. ring (Dry, kVrms)
R.I.V. Level of the complete string with C.C. ring.
(micro V)
Total creepage distance of complete insulator
string (mm)
Schedule A: Requirements
SA-16
245kV
Anti FOG
255 x 145
430
120
460
1050
1.3 times the
actual wet
flashover
voltage of
the unit.
156
1000
6125
. Sl.
(A)
APPENDIX A5
SCHEDULE OF TECHNICAL REQUIREMENTS
DIGITAL FAULT AND DISTURBANCE RECORDER [DFDR]
FOR KHULNA SOUTH SUBSTATION
ITEM
UNITS
GENERAL
1
2
3
Manufacturer’s name & address
Type
Power Supply
-Power supply for printer
(B)
ANALOGUE INPUTS
1
Number of Channel
2
3
Nominal Current
Nominal voltage
- Current
Frequency response
Cut-off frequency
(a) Bandwidth
(b) Attenuation at
(c) Auto adjusted anti-aliasing filters
for chosen sampling rate
Simultaneously
programmable
sampling rate for all feeders/inputs
-Locally Changeable
-Remotely Changeable
4
5
d
e
Possible sampling rates
6
7
8
9
DC coupled inputs
Resolution
Accuracy
Burden
1. Current Circuit at IN
2. Voltage Circuit
Over load
1. Current
2. Voltage circuit
10
(C)
VDC
VAC
4-for current & 4 for voltage
Total 8 for 230kV
Amp
Vac/Vdc
mA/Amp
dB
dB
Yes/No
1A/5A
Yes
Min 2 for FAST and SLOW
Recording
Yes/No
Yes/No
Yes
Yes
3 different samplig rates:
Samples/sec Slow. 1Hz-500Hz
Samples/sec fast: 0.5 kHz – 6kHz
Samples/sec continuous (variable rate)
Yes/No
Yes
bits
12 or better
%
Min 0.5
VA
VA
% In
% Vn
DIGITAL INPUTS
Schedule A: Requirements
110
230
SA-17
100% In continuously, Min 600
% in for 1 Second
2Vn and max. 350 Vn
16 for 230kV
min. 360
1
Number of Channel
2
3
-Expandability (Without and time
skew)
Selectable input level
Vdc
Type
4
Resolution
(D)
MEMORY
1
2
3
4
5
6
Size
Type
Pre-fault time (fast scanning rate)
Post-fault (fast scanning rate
Pre and Post-fault time (slow
scanning rate)
In-Built hard disk (auto-maintained
Sl.
(E)
ITEM
UNITS
SENSORS/ TRIGERRING CRITERIA
N/O or N/C, 110 VDC
Potential or potential free
contact
ms
MB
sec
sec
sec
64 MB or Higher
Solid State
0.1-2 user programmable
0.1-2 user programmable
min. 180 user programmable
GB
min. 4 GB
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
All sensors/trigerrs are preferable
Programmable and Virtually recordable
Logical combination sensor
Three phase over or under Voltage /
Current
Mono phase over or under Voltage /
Current
*du/dt, dp/dt, dq/dt, [Single/3 Phases], df/dt.
etc.
RMS [Voltage / Current]
Zero Sequence
Negative, Positive Sequence
Frequency
DC Step
Pendling / Swing
Digital level and edge
Sensor trigger
Event Trigger
Manual Trigger
Remote Trigger
(F)
CLOCK SYSTEM
1.
2.
3.
4.
Internal Clock
Yes/No
Accuracy
External Synchronization
Yes/No
Time resolution between 2 synchronized
pulses
1.
2.
3.
4.
Schedule A: Requirements
SA-18
Yes/No
Yes
Yes/No
Yes/No
Yes
Yes
Yes/No
Yes
Yes/No
Yes
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
(G)
OUTPUT
CONTACT
ALARM
RELAY
1.
Max. operation Voltage DC/AC
2.
3.
4.
Make and carry for 0.5 sec
Carry Continuously
Break ( DC ) – resistive
(H)
INTERFACE
FOR
COMMUNICATION
1.
2.
3.
4.
5.
Full definition compression
Maximum transmission rate
Standard serial port ( EIA-232-D)
Printer Port
Dedicated serial port for modem
(I)
PRINTER DATA
1.
2.
3.
4.
Vac
Vdc
A
A
W
/ 250 Vac or above, 60 Vdc or
above
Min 8A
Min 5A
DATA
Yes/No
bits / Sec
Yes / No
Yes/No
Yes/No
Yes
Yes
Yes
Yes
Printer amplitude (scaling peak to peak)
Time Scal (mm / s )
Printer resolution
Auto printing
mm
Yes/No
Yes
(J)
Fault Priority transmission
Yes/No
Yes
(K)
Fault location (distance calculation)
Yes/No
Yes
(L)
Test certificates from internationally Yes/No
recognized Laboratories
Yes
(M) COMMUNICATION AND REMOTE
ANALYZING UNIT
1. Processor Pentium
(MHz)
Yes/No
Yes/No
(Mb)
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
2. Co-Processor Pentium
3. Main memory capacity
4. Color graphics board S-VGA
5. Screen S-VGA
6. Hard disk unit
7. Printer
8. Modem
Yes, at least 450 MHz
Pentium
Yes
Yes, at least 64 MB
Yes
Yes
Yes, at least 40 GB
Yes
Yes.
*Note: du/dt=Change of voltage, dp/dt=Change of active power, dq/dt=change of reactive power, df/dt=Change of frequency.
Schedule A: Requirements
SA-19
Schedule A: Requirements
SA-20
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA SOUTH
SUBSTATION ON TURNKEY BASIS
Item
Description
Schedule B1: Plants Supplied from Outside the Employer's Country
Foreign Currency(F/C) Price ……….
Unit
Qty
Country Unit Price Total Price Insurance Freight Total Price
of origin
FOB
FOB
CIF
1
1A
2
245 kV Air Insulated Switchgear
1A.1
SF6 Circuit breaker, live tank, single pole
operating
sets
2
1A.2
Single throw horizontal center air break , post
type disconnector switch with E/S , 1600A
sets
2
1A.3
Single throw horizontal center air break, center
rotating post type disconnector switch without E/S
, 1600A
sets
8
1A.4
Single phase current transformer
nos.
6
1A.5
Single phase capacitive voltage transformer CVT
nos.
6
1A.6
Single phase surge arrester
nos.
6
1A.7
Flexiable Conductor for jackbus , jumper &
equipment connection
lot
1
1A8
Post insulators
nos.
4
1A.9
Strain Insulators and fittings including all
necessary clamps and connectors
lot
1
i)
ii)
iii)
1A.10
Insulator
Fittings
Clamps & Connectors
Steel Structures & cable tray
lot
lot
lot
1
1
1
i)
Gantry Column including nuts bolts
lot
ii)
Gantry Beam including nuts bolts
iii)
Equipment support structures including nut&bolts
lot
1
iv)
Cable tray including fitting, fixing accessories
lot
1
Schedule B1-1
3=1x2
4
5
6=3+4+5
Local Currency(L/C) Price (in Taka)
Local
Local
Total L/C
transport &
Insurance
Cost
handling cost to destination
to destination
7
8
9=7+8
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA SOUTH
SUBSTATION ON TURNKEY BASIS
Item
Description
Schedule B1: Plants Supplied from Outside the Employer's Country
Foreign Currency(F/C) Price ……….
Unit
Qty
Country Unit Price Total Price Insurance Freight Total Price
of origin
FOB
FOB
CIF
1
1B
1B.1
Control, Protection and Metering
Complete control & protection panel for two sets
of overhead line circuits to Mongla (Mongla -1 &
2)
set
2
1B.2
Extension, connection and modification to
existing busbar protection and sunchronizing with
existing system
lot
1
1B.3
Tariff meters(Imp & exp) for two new lines
lot
1
set
2
lot
1
lot
lot
1
1
lot
lot
1
1
Lot
1
Lot
1
lot
1
1B.4
1C.
1C.1
i)
ii)
1D.1
i)
ii)
1E
1E.1
1F
Complete protection panels for two (2) sets of
overhead line circuits from Khulna South (Khulna
South-1 & 2) at Mongla
Multicore Cables
Multicore Low Voltage power and control cable
LV power Cable
LV Control Cable
Earthing and Lightning Protection System
Earthing System
Lightning Protection System
DC Distribution Connection
Extension of existing DC distribution system with
necessary MCB/MCCB etc. for connecting the
new line feeder equipment with 110V & 48V DC
system
1F.1
LVAC Distribution
Extension of existing LVAC system for connecting
the new line feeder equipment
1H
1H1
Lighting and small power
Lighting & Small power
2
Schedule B1-2
3=1x2
4
5
6=3+4+5
Local Currency(L/C) Price (in Taka)
Local
Local
Total L/C
transport &
Insurance
Cost
handling cost to destination
to destination
7
8
9=7+8
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA SOUTH
SUBSTATION ON TURNKEY BASIS
Item
Description
Schedule B1: Plants Supplied from Outside the Employer's Country
Foreign Currency(F/C) Price ……….
Unit
Qty
Country Unit Price Total Price Insurance Freight Total Price
of origin
FOB
FOB
CIF
1
1I
2
Fiber Optic Multiplexer Equipment for
Teleprotection and Communication
1I.1
Extension of Indoor type Fibre Optic Multipexer
Equipment for communication and protection for
Mongla 1 & 2
Lot
1
1I.2
Fibre Optic cable(48 cores) and termination box
Lot
1
1I.3
Necessary works for integration of New bays with
existing Areva, France make NLDC system.
Lot
1
1I.4
i) Fibre Optic Multipexer Equipment for
communication & protection at Mongla
Lot
1
ii) Hot line Telephone system
Lot
1
Lot
1
1J
Digital Fault Disturbance Recorder
1J1
Extension and modification of existing digital
fault disturbance recorder
Total price
Schedule B1-3
3=1x2
4
5
6=3+4+5
Local Currency(L/C) Price (in Taka)
Local
Local
Total L/C
transport &
Insurance
Cost
handling cost to destination
to destination
7
8
9=7+8
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA SOUTH
SUBSTATION ON TURNKEY BASIS
Item
Description
Schedule B1: Plants Supplied from Outside the Employer's Country
Foreign Currency(F/C) Price ……….
Unit
Qty
Country Unit Price Total Price Insurance Freight Total Price
of origin
FOB
FOB
CIF
1
2
Schedule B1-4
3=1x2
4
5
6=3+4+5
Local Currency(L/C) Price (in Taka)
Local
Local
Total L/C
transport &
Insurance
Cost
handling cost to destination
to destination
7
8
9=7+8
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA
SOUTH SUBSTATION ON TURNKEY BASIS
Schedule B2: Plants Supplied from within the Employer's country
Unit
Item
Qty
Description
1
1A
245 kV Air Insulated Switchgear
1A.1
SF6 Circuit breaker, live tank, single pole
operating
sets
2
1A.2
Single throw horizontal center air break , post
type disconnector switch with E/S , 1600A
sets
2
Single throw horizontal center air break, center
1A.3 rotating post type disconnector switch without
E/S , 1600A
sets
8
1A.4 Single phase current transformer
nos.
6
nos.
6
nos.
6
lot
1
Single phase capacitive voltage transformer
CVT
1A.6 Single phase surge arrester
1A.5
1A.7
Flexiable Conductor for jackbus , jumper &
equipment connection
1A8
Post insulators
nos.
4
Strain Insulators and fittings including all
1A.9
necessary clamps and connectors
lot
1
i)
ii)
iii)
lot
lot
lot
1
1
1
insulator
Fittings
Clamps & Connectors
Country
of origin
Foreign Currency in ……..
Local Currency in Taka
Unit Price
Total Price
Unit Price
Total Price
Transport Insurance
Total L/C
EXW
EXW
EXW
EXW
& Handling
Cost
Excluding VAT Excluding VAT Excluding VAT Excluding VAT to distination
Excluding VAT
on EXW
2
3=1x2
4
5=1x4
6
7
8=5+6+7
1A.10 Steel Structures & cable tray
i)
Gantry Column including nuts bolts
lot
ii)
Gantry Beam including nuts bolts
Equipment support structures including
nut&bolts
Cable tray including fitting, fixing accessories
lot
1
lot
1
iii)
iv)
Schedule B2-9
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA
SOUTH SUBSTATION ON TURNKEY BASIS
Schedule B2: Plants Supplied from within the Employer's country
Unit
Item
Qty
Description
1
Control, Protection and Metering
Complete control & protection panel for two
1B.1 sets of overhead line circuits to Mongla
(Mongla -1 & 2)
Country
of origin
Foreign Currency in ……..
Local Currency in Taka
Unit Price
Total Price
Unit Price
Total Price
Transport Insurance
Total L/C
EXW
EXW
EXW
EXW
& Handling
Cost
Excluding VAT Excluding VAT Excluding VAT Excluding VAT to distination
Excluding VAT
on EXW
2
3=1x2
4
5=1x4
6
7
8=5+6+7
1B
set
2
lot
1
1B.3 Tariff meters(imp & exp) for two new lines
Complete protection panels for two (2) sets of
lot
1
1B.4 overhead line circuits from Khulna South
set
2
lot
1
lot
lot
lot
lot
lot
1
1
1
1
1
Lot
1
Lot
1
lot
1
1B.2
1C.
Extension, connection and modification to
existing busbar protection and sunchronizing
(Khulna South-1 & 2) at Mongla
Multicore Cables
Multicore Low Voltage power and control
cable
i)
LV power Cable
LV Control Cable
ii)
1D.1 Earthing and Lightning Protection System
i)
Earthing System
ii)
Lightning Protection System
1E
DC Distribution Connection
1E.1 Extension of existing DC distribution system
with necessary MCB/MCCB etc. for
connecting the new line feeder equipment with
110V & 48V DC system
1C.1
1F
LVAC Distribution
1F.1 Extension of existing LVAC system for
connecting the new line feeder equipment
1H
Lighting and small power
1H1 Lighting & Small Power
Schedule B2-10
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA
SOUTH SUBSTATION ON TURNKEY BASIS
Schedule B2: Plants Supplied from within the Employer's country
Unit
Item
Qty
Description
1
Country
of origin
Foreign Currency in ……..
Local Currency in Taka
Unit Price
Total Price
Unit Price
Total Price
Transport Insurance
Total L/C
EXW
EXW
EXW
EXW
& Handling
Cost
Excluding VAT Excluding VAT Excluding VAT Excluding VAT to distination
Excluding VAT
on EXW
2
3=1x2
4
5=1x4
6
7
8=5+6+7
1I
Fiber Optic Multiplexer Equipment for
Teleprotection and Communication
1I.1 Extension of Indoor type Fibre Optic
Multipexer Equipment for communication and
protection for Mongla 1 & 2
Lot
1
1I.2 Fibre Optic cable(48 cores) and termination
box
Lot
1
1I.3 Necessary works for integration of New bays
with existing Areva, France make NLDC
system.
Lot
1
1I.4 i) Fibre Optic Multipexer Equipment for
communication & protection at Mongla
Lot
1
ii) Hot line Telephone system
Digital Fault Disturbance Recorder
Lot
1
Lot
1
1J
1J1 Extension and modification of existing digital
fault disturbance recorder
Total Price
Sub Total Price in words............................................................................................................................................................................
Schedule B: Bid Price
Schedule B2-11
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA
SOUTH SUBSTATION ON TURNKEY BASIS
Schedule B2: Plants Supplied from within the Employer's country
Unit
Item
Qty
Description
1
Country
of origin
Foreign Currency in ……..
Local Currency in Taka
Unit Price
Total Price
Unit Price
Total Price
Transport Insurance
Total L/C
EXW
EXW
EXW
EXW
& Handling
Cost
Excluding VAT Excluding VAT Excluding VAT Excluding VAT to distination
Excluding VAT
on EXW
2
3=1x2
4
5=1x4
6
7
8=5+6+7
Schedule B2-12
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230KV EXTENSION IN
EXTENSION 230/132KV SUBSTATIONS AT KHULNA SOUTH ON TURNKEY BASIS
CONTRACT NO : PGCB/230KV/SS/KS
Schedule No. B3 : Design Services
Design
Local Currency in Taka
Item
Desctiption
Unit
Qty
Foreign Currency
-
All Design Cost for this Contract
is deemed to be included in
Schedule Nos. B1, B2, and B4.
-
-
Not applicable
Not applicable
-
-
Total Price carried to Summary of Price Schedule
Schedule B3-1
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN
EXISTING 230/132kV KHULNA SOUTH SUBSTATION ON TURNKEY BASIS
Schedule_B4 -Installation & Other Services
Item
1A
Description
Unit
Qty
(1)
245 kV Air Insulated Switchgear
1A.1
SF6 Circuit breaker, live tank, single pole operating
sets
2
1A.2
Single throw horizontal center air break , post type
disconnector switch with E/S , 1600A
sets
2
1A.3
Single throw horizontal center air break, center
rotating post type disconnector switch without E/S ,
1600A
sets
8
1A.4
Single phase current transformer
nos.
6
1A.5
1A.6
nos.
nos.
6
6
lot
1
nos.
4
i)
Single phase capacitive voltage transformer CVT
Single phase surge arrester
Flexiable Conductor for jackbus , jumper & equipment
connection
Post insulators
Strain Insulators and fittings including all necessary
clamps and connectors
Insulator
lot
1
ii)
Fittings
lot
1
Clamps & Connectors
Steel Structures & cable tray
lot
1
i)
Gantry Column including nuts bolts
lot
ii)
Gantry Beam including nuts bolts
Equipment support structures including nut&bolts
1A.7
1A8
1A.9
iii)
1A.10
iii)
iv)
Cable tray including fitting, fixing & accessories
lot
1
lot
1
Local Currency Prices in Bangladesh Taka
Unit Price
(2)
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN
EXISTING 230/132kV KHULNA SOUTH SUBSTATION ON TURNKEY BASIS
Schedule_B4 -Installation & Other Services
Item
1B
Description
Unit
Qty
(1)
Control, Protection and Metering
1B.1
Complete control & protection panel for two sets of
overhead line circuits to Mongla (Mongla -1 & 2)
set
2
1B.2
Extension, connection and modification to existing
busbar protection and synchronization with existing
system
lot
1
1B.3
Tariff meters (imp & exp) for two new lines
lot
1
1C.
Multicore Cables
1C.1
Multicore Low Voltage power and control cable
lot
1
i)
ii)
1D.1
lot
lot
lot
1
1
1
i)
LV power Cable
LV Control Cable
Earthing and Lightning Protection System
Earthing System
lot
1
ii)
Lightning Protection System
lot
1
1E
DC Distribution Connection
Lot
1
Lot
1
1E.1
1F
1F.1
Extension of existing DC distribution system with
necessary MCB/MCCB etc. for connecting the new
line feeder equipment with 110V & 48V DC system
LVAC Distribution
Extension of existing LVAC system for connecting the
new line feeder equipment
Local Currency Prices in Bangladesh Taka
Unit Price
(2)
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN
EXISTING 230/132kV KHULNA SOUTH SUBSTATION ON TURNKEY BASIS
Schedule_B4 -Installation & Other Services
Item
1G1
Description
Unit
Qty
(1)
Civil Works and Foundation
i)
Outdoor gantry foundation
Lot
1
ii)
Outdoor equipment Foundation
Lot
1
iii)
Cable trench extension
Lot
1
iv)
Surface drain extension
Lot
1
v)
vi)
vii)
Internal Road extension
Switchyard surface finishing
Gravel laying
Lot
Lot
Lot
1
1
1
1H
Lighting and small power
1H1
Lighting & Small Power
lot
1
1I
Fiber Optic Multiplexer Equipment for Teleprotection and
Communication
1I.1
Extension of Indoor type Fibre Optic Multipexer
Equipment for communication and protection for
Mongla 1 & 2
Lot
1
1I.2
Fibre Optic cable(48 cores) and termination box
Lot
1
1I.3
Necessary works for integration of New bays with
existing Areva, France make NLDC system.
Lot
1
1J
Digital Fault Disturbance Recorder
1J1
Extension and modification of existing digital fault
disturbance recorder system
Lot
1
Total:
Local Currency Prices in Bangladesh Taka
Unit Price
(2)
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN
EXISTING 230/132kV KHULNA SOUTH SUBSTATION ON TURNKEY BASIS
Schedule_B4 -Installation & Other Services
Item
Description
Unit
Qty
(1)
Local Currency Prices in Bangladesh Taka
Unit Price
(2)
kV EXTENSION IN
KEY BASIS
rency Prices in Bangladesh Taka
Total Price
(3)
kV EXTENSION IN
KEY BASIS
rency Prices in Bangladesh Taka
Total Price
(3)
kV EXTENSION IN
KEY BASIS
rency Prices in Bangladesh Taka
Total Price
(3)
kV EXTENSION IN
KEY BASIS
rency Prices in Bangladesh Taka
Total Price
(3)
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING 230/132kV KHULNA SOUTH SUBSTATION ON TURNKEY BASIS
SCHEDULE B5: SUMMARY OF PRICE SCHEDULE
Foreign Currency Price:
Foreign Currency Prices
Description of Works
1
Extension of
Khulna South
Substaton
Outside Employer's Country
Total Price FOB
Insurance
Freight
Total CIF Price
2
3
4
5=(2+3+4)
Outside Employer's Country (Schedule B1)
Within the
Employer's
Country
Total EXW Price
Total
Excluding VAT
EXW
6
F/C
Cost
Excluding VAT on
7=5+6
N/A
Within Employer's Country (Schedule B2)
N/A
N/A
N/A
N/A
Design Service (Schedule B3)
N/A
N/A
N/A
N/A
N/A
`
N/A
TOTAL FOREIGN CURRENCY AMOUNT
Local Currency Price:
Local Currency Prices in Bangladesh Taka
Within the Emplyoer's Country
Description of Works
1
Outside Employer's Country (Schedule B1)
Extension of
Khulna South
Substaton
Total Price
EXW incuding
VAT
Transportation &
Handling to
destination
Insurance to
Destination
Installaton and
other services
Total Amount
Local Insurance to
Destinaton
Local Transportaton
& Handling Cost to
Destinaton
2
3
4
5
6=2+3+4+5
7
8
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Within Employer's Country (Schedule B2)
Installation & other Service (Schedule B4)
Outside the Employer's Country
N/A
N/A
N/A
N/A
TOTAL AMOUNT (Bangladesh Taka)
TOTAL CONTRACT PRICE in words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The above price shall appear on the FORM OF PRICE BID
N/A: Not applicable.
plus Bangladesh Taka . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schedule B: Bid Price
Schedule B5-1
Total L/C Cost
excluding VAT on
EXW
9=6+7+8
Schedule B5-2
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE C
BAR CHART PROGRAMME OF KEY ACTIVITIES
SC-1
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE C
TIMES FOR DELIVERY AND COMPLETION
The individual dates are all contractually binding.
The times given under Column D are the commissioning target dates at present planned to be
achieved and may be the subject of mutual adjustment.
Column A details the earliest dates by which access to site can be given for storage purposes.
The times entered under column B are to be the dates guaranteed for arrival at Site of the first
shipment of parts for the circuits in question being also the dates when the contract requires
access to the Site for plant erection, to the extent necessary to enable him to proceed with
work to meet the dates under column C guaranteed for complete delivery, erection and
commissioning of the shipment.
The times include all necessary control, relay, metering, auxiliary power ancillary equipment
to enable the respective circuit or item of plant to be completely commissioned and put into
commercial operation, together with such other associated equipment, e.g. busbars, etc as
will ensure that subsequent shutdown are unnecessary or at least only of a temporary or short
time nature.
The dates assume an order is placed by . . . . . . . . . . . . . . . . . . . . .
(to be advised or stated by Bidder)
Site
Khulna
South
A*
Latest Access
Permitted
7 days from the
date of signing of
the Contract
B*
Guaranteed Arrival
of first shipment
C*
Guaranteed
Completion
365 days
D*
Target
Completion
* Time in days, from contract effective date.
Preliminary SLD, overall layout and control building drawings of the Technical
Specifications shall be provided within 2.0 months of the contract commencing date.
SC-2
Design, Supply, Erection, Testing & Commissioning of 230kV Extension of Existing 230/132kV Khulna South Substation
SCHEDULE C
BAR CHART PROGRAM M E OF K EY ACTI VI TI ES
1
2
3
Equipment
Drawings of single line diagram
Drawings of 132kV and 33kV Switchgear Layout
Drawings of 132kV Switchgear Equipment
Manufacture of 132kV &33kV Switchgear Equipment
Manufacture of Control, Protection, and Metering System
Factory Routine Test
Delivery of equpment to site
Foundation
Calculation/Drawings of gantry structures and equipment supports
Calculaiton /Drawings of control building
Calculaiton /Drawings of earthing System
Construction and Installation Works
Site Survey
Geo-technical survey
Switchyard
- Piling
- Foundation works incl. earthing
- Cable trenches
- Gantry and equpment support installation
switchgear equipment installation
- Busbars, Jumper condcutors and OH earthwire installation
Construction of Control Building/GIS Bulding
Cable laying & Termination
Installation of LVAC & DC system
Installation of Indoor equipment (Control, protection, metering & FOX and
DFDR etc.)
Testing & Commissioning
Note: Time to complete the plant and services from the effective date is 12 months
SC-3
4
5
6
7
8
9
Time Period in month
10
11
12
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE D
MANUFACTURERS, PLACES OF MANUFACTURE AND TESTING
Schedule D: Manufactures, place of manufacture and testing
SD-1
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY,ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE D
MANUFACTURERS, PLACES OF MANUFACTURE AND TESTING
The following Subcontractors and/or manufacturers are proposed for carrying out the item of
the facilities indicated.
Bidders are free to propose more than one for each item.
Item
1
Description
Proposed
Subcontractors/
Manufacturers
245 kV AIS SWITCHGEAR
Steel Structure
Circuit Breaker
Disconnector
Current Transformer
Voltage Transformer
Surge Arrester
Flexible Conductor
Earth Wire
Clamps
Connectors
Insulator
-Post
-Disc
Schedule D: Manufactures, place of manufacture and testing
SD-2
Place of
Manufacture
Place of
Testing and
Inspection
Item
Description
Proposed
Subcontractors/
Manufacturers
Fittings
Steel Structures
2
PROTECTION
METERING AND
CONTROL
Panels
Instruments
Protective relays
Meters
Transducers
Energy Meter
3
4
DFDR
DC EQUIPMENT
Distribution Boards
5
6
415 kV SWITCH FUSE
BOARD
MULTICORE CABLES
XLPE Insulated Cables
Cable trays
7
EARTHING
Copper flatbar/ Copper
conductor
Insulated copper
Schedule D: Manufactures, place of manufacture and testing
SD-3
Place of
Manufacture
Place of
Testing and
Inspection
Item
Description
Proposed
Subcontractors/
Manufacturers
Conductor
Earthing Rod
Exothermic Joint
8
FIBRE OPTIC
MULTIPLEXER
EQUIPMENT
9
SITE ERECTION AND
COMMISSIONING BY
CIVIL WORKS
Design to be performed
by:Constructed by:-
Schedule D: Manufactures, place of manufacture and testing
SD-4
Place of
Manufacture
Place of
Testing and
Inspection
Item
Description
Schedule D: Manufactures, place of manufacture and testing
Proposed
Subcontractors/
Manufacturers
SD-5
Place of
Manufacture
Place of
Testing and
Inspection
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE E
TECHNICAL PARTICULARS AND GUARANTEES
Technical particulars & Guarantees
SE-1
SCHEDULE E
TECHNICAL PARTICULARS AND GUARANTEES
General
230kV AIR INSULATED SWITCHGEAR (AIS)
Sl. No. Description
Unit
1.
Site Condition
Max. Altitude above sea level
m
Max. Ambient temperature outdoor ℃
Min. Ambient temperature outdoo ℃
r
Max. Ambient relative humidity
%
Max. Seismic acceleration at floor level
- horizontal
g
- vertical
g
2.
Electrical Data
Rated Voltage
kV
Rated Frequency
Hz
Insulation Level
- lightning impulse withstand
kVp
- switching impulse withstand
kVp
- 50 Hz withstand 1 minute
kV
Rated continuous current at 40℃
ambient temperature
- main busbar and bus coupler
A
- transformer bay
A
- line bay
A
Rated short time withstand
- current
kA
- duration
Sec
Rated peak withstand current
kA
3.
Secondary Circuit
Auxiliary voltage
- for control and signal
V dc
- for remote control
V dc
- for heating
- tolerances
V ac
%
Technical particulars & Guarantees
SE-2
230kV
PART 1 - SWITCHGEAR
1.1
HV OUTDOOR CIRCUIT BREAKERS
Bidders Data
Sl.
No.
Description
1
Manufacturer
2
Type Reference (Manufacturer’s designation)
3
Number of Poles
4
Rated Voltage
5
Rated frequency
6
Rated normal current-feeder/transformer/bus
coupler
A
7
Rated breaking currents:
Line charging
Cable charging
Small inductive
kA rms
8
Rated short-circuit breaking current
kA,rms
9
First pole to clear factor
10
Rated transient recovery voltage for terminal faults
if other than standard
11
Rated characteristics for short-line faults
12
Rated short-circuit making current
13
Rated operating sequence
14
Rated duration of short-circuit
s
15
Rated out of phase breaking current
kA
16
Rated opening time
ms
17
Rated break time
ms
18
Rated closing time
ms
19
Unit
kV
kA
Maximum arcing time of any duty cycle to IEC 56
ms
20
Is circuit-breaker re-strike free
Yes/No
21
Test Authority
22
Test Certificate ref.
23
Rated short time withstand current
kA
24
Rated duration of short-circuit
s
25
Rated peak withstand current
kA
26
Rated insulation levels:-
26.1
Lightning impulse withstand to earth
kV pk
(wave shape 1.2/50µs)
Technical particulars & Guarantees
SE-3
245kV
Bidders Data
Sl.
No.
Description
Unit
26.2
Lightning impulse withstand across open
kV pk
contacts (wave shape 1.2/50µs)
26.3
Power frequency voltage withstand to earth
kV rms
26.4
Power frequency voltage withstand across open
contacts
kV rms
27
Rated supply pressure of gas for interruption
MPa (g)
28
Limits for correct operation
max
min
MPa (g)
MPa (g)
29
Frequency of operation
yr-1
30
Operating mechanism Manufacturer
31
Mechanism Type:
32
Trip free/or fixed trip
33
Is lockout facility fitted?
34
Closing supply
Volts
Amps
V
A
max/min
35
Rated supply voltage of shunt opening release
V
36
Current required at rated supply voltage to open
circuit-breaker
Spring charging motor
- Current
- Voltage
AC/DC
A
37
A
V
38
Number of auxiliary switch contacts
- normally open
- normally closed
- adjustable
39
Other auxiliary loads:
Voltage:
Current:
40
Degree of Protection for
(a)
auxiliary circuits
(b)
moving parts
41
Minimum clearances in air:
(a)
between phases
(b)
phases to earth
(c)
across interrupters
(d)
live parts to ground level
mm
mm
mm
mm
Minimum creepage
(a)
to earth
(b)
across interrupter terminals
mm
mm
Radio interference voltage
μV
42
43
Technical particulars & Guarantees
SE-4
245kV
Bidders Data
Sl.
No.
Description
Unit
44
Guaranteed maximum gas leakage
% per
annum
45
Number of interrupters per pole
46
Material of interrupter chamber
47
Wall thickness of interrupter chamber
48
Material of contact surfaces primary arcing
49
Length of each break
mm
50
Length of stroke
mm
51
Operating rod for moving contact(s) material
dimensions, etc.
52
Weight of circuit-breaker unit complete
53
Maximum shock load imposed on floor or
foundations when opening under fault conditions
(state whether tension or compression)
245kV
mm
kg
kg
54
Quantity of gas in complete three-phase circuit
breaker
55
Maximum pressure rise in circuit breakers due to
the making or breaking of rated current
56
Routine pressure test on circuit-breaker tanks or
containers
57
Pressure type test on circuit-breaker tanks or
containers
58
Interrupting gas pressure at 20C Normal
59
Limits of gas pressure at 20C Maximum
Minimum
60
Period of time equipment has been in commercial
operation
61
Number of the same type of circuit breakers
supplied to date
1.2
DISCONNECTORS AND EARTHING SWITCHES
Bidders Data
Sl.
No.
Description
1
Manufacturer
2
Type Number
3
Operating type
(a)
Unit
horizontal/vertical break
Technical particulars & Guarantees
SE-5
245kV
Sl.
No.
Bidders Data
Description
Unit
(b)
Pantograph
(c)
Number of support insulation for pole
(d)
Number of breaks per pole
(e)
Material of contact surfaces
(f)
Type of Contacts
4
Rated normal current
A
5
Rated short time withstand current
kA, rms
6
Rated duration of short time current
s
7
Rated peak withstand current
kA pk
8
Rated insulation levels:
8.1
Lightning impulse withstand to earth
(waveshape: 1.2/50µs)
kV pk
8.2
Lightning impulse withstand across open contacts
(waveshape: 1.2/50µs)
kV pk
8.3
Power frequency voltage withstand to earth
kV rms
8.4
Power frequency voltage withstand across open
contacts
kV rms
9
Method of operation
10
Type of operating mechanism
manual/power
11
Operating power
12
Voltage/pressure rated
max
min
V/MPa(g)
V/MPa(g)
V/MPa(g)
13
Consumption electric
A
14
Operating time: open max
min
ms
ms
15
Operating time: close max
min
ms
ms
16
Manual operating torque
kNm
17
Load switching capability
A
18
Mechanical Terminal Load
N
19
Insulator Creepage
mm
20
Radio interference voltage
mV
21
Number of auxiliary switches
normally open
normally closed
adjustable
Technical particulars & Guarantees
SE-6
245kV
Sl.
No.
Bidders Data
Description
22
Other auxiliary loads
voltage
current
23
Mechanical endurance:
Unit
245kV
Number of operations carried out for mechanical
operation test
24
Degree of protection for
1)
auxiliary circuits
2)
moving parts
25
Total weight of three pole disconnector complete
26
Type test certificate date/reference
27
Period of time equipment has been in commercial
operation
28
Number of the same type of disconnectors supplied
to date
1.3
kg
CURRENT TRANSFORMERS (line bay)
Sl.
No.
Bidders Data
Description
1
Manufacturer/type
2
Rated primary current
A rms
3
Rated secondary current
A rms
4
Rated frequency
Hz
5
Highest voltage for equipment
kV
6
Rated insulation level - primary winding
kV
7
Lightning impulse withstand
kV pk
8
(a)
(b)
kV rms
kV rms
9
Insulator creepage (phase to earth)
10
Electrical dissipation factor at power frequency test
voltage
11
Radio influence voltage measured at U/3 1 MHz
µV
12
13
Rated short term thermal current for 1s
Rated short term thermal current for 3s
A rms
A rms
14
Rated dynamic current
kA pk
15
Insulation class
16
Number of secondary windings
Location of core
Unit
Power frequency withstand (dry)
Power frequency withstand (wet)
Technical particulars & Guarantees
mm
SE-7
245kV
17
18
Core 1 Rated output
Accuracy class *
Accuracy limit factor
Core 2 Rated output
Accuracy class *
Accuracy limit factor
Core 3 Rated output
Accuracy class *
Accuracy limit factor
Core 4 Rated output
Accuracy class *
Accuracy limit factor
Class x winding:
Rated knee point emf
Exciting current
*including instrument security factor where
applicable
Is earth screen fitted between primary and
secondary windings
Type test certificate ref/date
1.4
Sl.
No.
V
A
VOLTAGE TRANSFORMERS
Description
Unit
Bidder’s Data
245kV
1
Manufacturer
-
2
Type No.
-
3
Transformer type
-
4
Rated primary voltage
kV rms
5
Rated secondary voltage for each secondary
winding
kV rms
6
Accuracy class for each winding
Rated output for each winding
Rated volt-ampere rating for each winding
7
Rated voltage factor
8
Type of Insulation
9
Maximum temperature rise
C
10
Short-circuit withstand capability
kA rms
11
Primary insulation
11.1
Lightning impulse withstand dry
kV pk
11.2
(a)
(b)
kV rms
kV rms
12
Partial discharge magnitude
pC
13
Total external creepage distance
mm
VA
VA
Power frequency withstand wet
Power frequency withstand dry
Technical particulars & Guarantees
SE-8
Sl.
No.
Description
Unit
245kV
14
Radio influence voltage measured at
11 Um/3 at 1 MHz
µV
15
Total installed weight
kg
16
Capacitor
16.1
High voltage capacitor (C1)
pF
16.2
Intermediate - voltage capacitor (C2)
pF
16.3
Total Capacitor (Cn)
pF
17
18
19
20
Open circuit intermediate voltage
Rated open-circuit intermediate voltage
Reference range of frequency
Reference range of temperature
kV
kV
+/- Hz
o
C
21
Protective device to limit overvoltage
1.5
SURGE ARRESTERS
Sl.
No.
Description
1
Manufacturer
2
Model Number
3
Type:
4
Continuous operating voltage
kV rms
5
Rated voltage
kV rms
6
Standard nominal discharge current
kA
7
Reference current at ambient temperature
mA
8
Reference voltage for above
kV rms
9
Steep current impulse residual voltage
kV pk
10
Lightning impulse residual voltage at
5kA
10kA
20kA
kV pk
kV pk
kV pk
11
Bidder’s Data
Unit
Bidder’s Data
245kV
Duty Class
12
Discharge class
13
Pressure relief class
14
Nominal diameter of resistor blocks
15
Number of resistor blocks connected electrically
in parallel
Technical particulars & Guarantees
mm
SE-9
16
Number of separately housed units per phase
17
Overall height of arrester (without supporting
structure)
m
18
Overall height of arrester including grading ring
if applicable
mm
19
Clearances:
phase to earth (from centre line)
phase to phase (centre line to centre line)
mm
mm
20
Overall Weight of arrester (without supporting
structure)
kg
21
Maximum cantilever strength
Nm
22
Maximum force due to wind (at maximum
specified gust speed)
Nm
23
Minimum creepage distance over insulator
housing
mm
24
Insulator shed profile - Reference Document
25
Terminal palm details - Drawing No.
26
Earthing terminal - Drawing No.
27
Type & Description of surge monitoring device
28
Type test certificate ref/date
29
Number of the same type of surge arresters
supplied to date
1.6
POST TYPE INSULATORS
Sl.
No.
Nominal System Voltage
1
Manufacturer
2
Insulator material
3
IEC.273 reference
4
Insulator type and manufacturer’s reference
5
Maximum working vertical load: tension
compression
kN
kN
6
Minimum failing load (tension)
kN
7
Maximum bending working load
kN
8
Minimum failing load (torsion)
Nm
Technical particulars & Guarantees
245 kV
SE-10
9
Minimum failing load (bending)
10
Shed profile (to be enclosed with Tender)
Drawing No.
11
Greatest diameter
12
Number of units in one insulator
13
Overall length per complete post
mm
14
Weight of complete post
kg
15
Electrostatic capacity
pF
16
Power frequency withstand voltage (dry)
kV
17
Power frequency withstand voltage (wet)
kV
18
Dry lightning impulse withstand voltage
1.2/50 micro sec. Wave
kV
Minimum creepage distance:
(a)
Specified, subject to acceptable
shed profile
(b)
Guaranteed
mm
mm
20
Protected creepage distance
mm
21
Radio influence voltage measured at Um/3 at
1 MHz
µV
19
1.7
kN
mm
INSULATOR STRINGS
Sl.
No.
Nominal System Voltage
1
Manufacturer
2
Insulator type (normal) and
manufacturer’s reference
3
Insulation material
4
Number of units per string
5
Outside diameter
mm
6
Distance between centres
mm
7
Length of string overall
mm
8
Maximum working load
kN
9
Minimum failing load per unit
kN
Technical particulars & Guarantees
245 kV
SE-11
10
Mechanical routine load test
kN
11
Electro-mechanical failing load
kN
12
Mechanical failing load
kN
13
Electrostatic capacity
pF
14
Weight of complete string
kg
15
50 Hz 1 minute withstand voltage of unit
(dry)
kV
16
50 Hz 1 minute withstand voltage of unit
(wet)
kV
17
Minimum 50 Hz puncture voltage
kV
18
Dry lightning impulse withstand voltage
of string1.2/50 micro sec. Wave
kV
Minimum creepage distance per unit:
(a)
Specified, subject to acceptable
shed profile
(b)
Guaranteed
mm
mm
20
Protected creepage distance per unit
mm
21
Radio influence voltage measured at
Um/3 at 1 MHz
µV
1.8
CONDUCTORS AND CONNECTIONS
19
Sl. No.
Nominal System Voltage
A.
FLEXIBLE CONDUCTORS
Manufacturer
1
2
3
245 kV
4
Conductor material
Material specification
aluminium alloy
Minimum use of grease
5
Number of sub conductor per phase
6
7
8
Nominal diameter of conductor
Rated current (site rating)
Temperature rise at rated current
9
10
11
Short time withstand current for 1 sec
Peak withstand current
Conductor spacer type description reference:
Technical particulars & Guarantees
SE-12
/
C
12
Creep period of conductor
B.
1
SHIELD WIRES
Manufacturer
2
3
Conductor material
Material specification
aluminium alloy
C.
CLAMPS AND FITTINGS
Manufacturer
years
Types
Maximum working stresses
D
STEEL STRUCTURES
1
Manufacturer
2
Proposed standards for steel
Technical particulars & Guarantees
SE-13
2.
AUXILIARY POWER AND MULTICORE CONTROL CABLES
Item
Number of core
Core section
Core diameter
Conductor insulation
Type of filler
Type of tape
Sheath thickness
Sheath outer diameter
Armour wires
Armour wires diameter
Outer covering
Outer covering thickness
Completed cable:
diameter
weight per metre
maximum drum length
Minimum installed bending
radius
Maximum conductor temperature
01
02
03
04
mm2
mm
mm
mm
mm
no.
mm
type
mm
kg
m
mm
C
SE-14
05
06
07
08
09
10
11
12
13
14
15
PART 3- FOR DCDB & LVAC EQUIPMENT
Sl.No.
3.1
Description
Bidder's Data
Miniature Circuit Breakers
For DCDB
1
Manufacturer
2
Manufacturer’s type designation
3
Rating
Amps
4
Fault Rating for 1 sec
KA
5
Voltage
Volts
3.2
Miniature Circuit Breakers for LVAC
1
Manufacturer
2
Type
3
Rating
Amps
4
Fault Rating for 1 sec
kA
PART 4 - PROTECTION
4.1
LINE PROTECTION FOR 230 kV OVERHEAD
LINE BETWEEN KHULNA –MONGLA
Bidders Data
MAIN 1 DISTANCE PROTECTION
1
Manufacturer
2
Manufacturer’s type designation
3
Phase switched
Yes/No
4
Zone switched
Yes/No
5
Number of zones
6
Shape of impedance characteristic
Zone 1
Zone 2
Zone 3
7
Reverse looking element (blocking signal initiation)
8
Sensitivity:
8.1
Minimum operating current
Earth faults
Phase faults
amps
amps
SE-15
8.2
8.3
8.4
8.5
8.6
Minimum necessary voltage for fault at zone 1 reach
point (if applicable)
Earth faults
Phase faults
Volts
Volts
Minimum zone 1 ohmic impedance to which relay can
be set
Ohms
Maximum zone 1 ohmic impedance to which relay can
be set and maintain accuracy
Ohms
Minimum zone 2 ohmic impedance to which relay can
be set
Ohms
Maximum zone 2 ohmic impedance to which relay can
be set and maintain accuracy
Ohms
MAIN 1 DISTANCE PROTECTION
(Continued)
8.7
Maximum zone 3 ohmic reach
Forward reach
Reverse reach
ohms
ohms
Arc forward and reverse reach setting independent
of each other?
Yes/No
Can resistance and reactance reaches be set
independent of each other
Yes
11
Directional sensitivity
volts
12
Current transformer requirements
13
Voltage transformer requirements
14
Back up zone time ranges
Zone 2
Zone 3
9
10
15
secs
secs
Method used to clear close-in faults
(a)
which occur when line is already energised
in service
(b)
which exist upon line energisation
SE-16
16
Has distance protection previously been used in the
type of blocking scheme offered for this contract?
If yes:
(a)
(b)
17
number of schemes in service
year first in service
Approximate number of years distance relay in
service. (A complete reference list should be
submitted stating client, system voltage and year of
going into service).
SE-17
Yes/No
MAIN 1 DISTANCE PROTECTION (Continued)
18
Zone 1 operating times when relay fed from capacitive voltage transformer. This
section must be completed in addition to supplying diagrams showing the effect of
source to line ratio and fault position on operating times.
18.1
Earth faults:
Operating time m.sec
Source to Line
Ratio
Fault Position
% of Relay Setting
1
0 (relay point)
50
90
10
0
50
90
30
0
50
90
18.2
Minimum
Maximum
Phase to Phase Faults
Operating time m.sec
Source to Line
Ratio
Fault Position
% of Relay Setting
1
0 (relay point)
50
90
10
0
50
90
30
0
50
90
SE-18
Minimum
Maximum
18.3
Three Phase Faults:
Operating time m.sec
Source to Line
Ratio
Fault Position
% of Relay Setting
1
0 (relay point)
50
90
10
0
50
90
30
0
50
90
19
Minimum
Directional Earth Fault Protection
Associated with Main 1 Distance Protection
19.1
Manufacturer
19.2
Manufacturer’s type designations
19.3
Current setting range:
(a) Forward element
(b) Reverse element
19.4
A
A
Minimum polarising quantity required for correct
directional decision
Voltage
(a) Forward element
V
(b) Reverse element
V
Current
(a) Forward element
(b) Reverse element
19.5
Characteristic angle
19.6
Time ranges:
(a) Blocking scheme
(b) Back-up
19.7
19.8
V
V
degrees
sec
sec
Has protection previously been used in the
blocking scheme offered for this contract?
CT requirements
SE-19
Yes
Maximum
4.2
LINE PROTECTION FOR 230 kV OVERHEAD
LINE BETWEEN KHULNA –M0NGLA
MAIN 2 DISTANCE PROTECTION
Bidders Data
1
Manufacturer
2
Manufacturer’s type designation
3
Phase switched
Yes/No
4
Zone switched
Yes/No
5
Number of zones
6
Shape of impedance characteristic
Zone 1
Zone 2
Zone 3
7
Reverse looking element (blocking signal initiation)
8
Sensitivity:
8.1
Minimum operating current
Earth faults
Phase faults
amps
amps
Minimum necessary voltage for fault at zone 1 reach
point (if applicable)
Earth faults
Phase faults
Volts
Volts
Minimum zone 1 ohmic impedance to which relay can
be set
ohms
Maximum zone 1 ohmic impedance to which relay can
be set and maintain accuracy
ohms
Minimum zone 2 ohmic impedance to which relay can
be set
ohms
Maximum zone 2 ohmic impedance to which relay can
be set and maintain accuracy
ohms
8.2
8.3
8.4
8.5
8.6
SE-20
4.2
MAIN 2 DISTANCE PROTECTION
(Continued)
8.7
Maximum zone 3 ohmic reach
Forward reach
Reverse reach
ohms
ohms
Arc forward and reverse reach setting independent
of each other?
Yes/No
Can resistance and reactance reaches be set
independent of each other
Yes
11
Directional sensitivity
volts
12
Current transformer requirements
13
Voltage transformer requirements
14
Back up zone time ranges
Zone 2
Zone 3
9
10
secs
secs
15
Method used to clear close-in faults
(a) which occur when line is already energised in
service
(b) which exist upon line energisation
16
Has distance protection previously been used in the
type of blocking scheme offered for this contract?
If yes:
(a) number of schemes in service
(b) year first in service
17
Approximate number of years distance relay in
service. (A complete reference list should be
submitted stating client, system voltage and year of
going into service).
SE-21
Yes/No
4.2
MAIN-2 Distance Protection (continued)
18
Zone 1 operating times when relay fed from capacitive voltage transformer. This
section must be completed in addition to supplying diagrams showing the effect of
source to line ratio and fault position on operating times.
18.1
Earth faults:
Source to Line
Ratio
1
30
Phase to Phase Faults
Source to Line
Ratio
1
30
10
30
Operating time m.sec
Minimum
Maximum
Three Phase Faults:
Source to Line
Ratio
1
Fault Position
% of Relay Setting
0 (relay point)
50
90
0
50
90
0
50
90
10
18.3
Operating time m.sec
Minimum Maximum
0 (relay point)
50
90
0
50
90
0
50
90
10
18.2
Fault Position
% of Relay Setting
Fault Position
% of Relay Setting
0 (relay point)
50
90
0
50
90
0
50
90
SE-22
Operating time m.sec
Minimum
Maximum
19
Directional Earth Fault Protection
Associated with Main 1 Distance Protection
19.1
Manufacturer
19.2
Manufacturer’s type designations
19.3
Current setting range:
(a) Forward element
(b) Reverse element
19.4
A
A
Minimum polarising quantity required for correct
directional decision
Voltage
(a) Forward element
V
(b) Reverse element
V
Current
(a) Forward element
(b) Reverse element
19.5
Characteristic angle
19.6
Time ranges:
(a) Blocking scheme
(b) Back-up
19.7
19.8
V
V
degrees
sec
sec
Has protection previously been used in the
blocking scheme offered for this contract?
Yes
CT requirements
4.3
230 kV AUTO RECLOSE EQUIPMENT
4.3.1
Auto Reclose Relay
1
Manufacturer
2
Manufacturer’s type designations
3
Dead time ranges:
(a) High speed single phase reclosure
(b) Delayed three phase reclosure
secs
secs
4
Reclaim time range
secs
5
Does the circuit breaker duty cycle permit any
combination of dead time and reclaim time within
the above ranges?
Yes/No
4.3.2
Dead Line Check Relays
1
Manufacturer
SE-23
2
Manufacturer’s type designations
3
Voltage setting ranges
(a) Busbar voltage
(b) Line voltage
volts
volts
4
Any time delays (specify function and value)
4.3.3
Synchronising Check Relays
1
Manufacturer
2
Manufacturer’s type designations
3
Setting ranges
(a) Phase angles
(b) Voltage difference
(c) Frequency
degrees
volts
Hz
4
Any time delays (specify function and value)
4.4
BUSBAR PROTECTION
1
Manufacturer
2
Manufacturer’s type designations
3
Operating principle, e.g. high impedance
4
Minimum relay setting
5
Sensitivity of scheme, (allowing for CT
magnetising current, etc)
6
Maximum through fault current at which
protection is stable
A
A
7
CT requirements
8
Estimated magnetising current at relay setting
A
9
Operating time at twice relay minimum setting
msec
10
Operating time at ten times relay minimum
setting
msec
4.5
4.5.1
1
CIRCULATING CURRENT PROTECTION
T-Point Protection
2
Manufacturer’s type designations
3
Operating principle, e.g. high impedance
4
Minimum relay setting
Manufacturer
A
SE-24
5
Sensitivity of scheme, (allowing for CT
magnetising current, etc)
6
Maximum through fault current at which
protection is stable
A
7
CT requirements
8
Estimated magnetising current at relay setting
A
9
Operating time at twice relay minimum setting
FEEDER END Protection
msec
4.5.2
1
Manufacturer
2
Manufacturer’s type designations
3
Operating principle, e.g. high impedance
4
Minimum relay setting
5
Sensitivity of scheme, (allowing for CT
magnetising current, etc)
6
Maximum through fault current at which
protection is stable
A
A
7
CT requirements
8
Estimated magnetising current at relay setting
A
9
Operating time at twice relay minimum setting
msec
SE-25
4.6
INVERSE TIME OVERCURRENT AND
EARTH FAULT PROTECTION
1
Manufacturer
2
Manufacturer’s type designations
3
Inverse time element
3.1
Range of current settings:
- overcurrent
- earth fault
amperes
amperes
3.2
Range of operating times at highest timing setting
at ten times current setting
seconds
3.3
Range of operating times at highest timing setting
at twice current setting
seconds
4
High set instantaneous element
Range of settings:
- overcurrent
- earth fault
amperes
amperes
5
Transient overreach at X = 10
R
6
Operating time with Maximum offset current at 5
times current setting
7
Burden of relay on minimum inverse time element
current setting at a current ten times setting
- overcurrent
- earth fault
SE-26
msecs
VA
VA
4.7
BREAKER FAILURE PROTECTION
1
Manufacturer
2
Manufacturer’s type designations
3
Setting of current elements:
- phase faults
- earth faults
amperes
amperes
4
Timer setting range
seconds
5
Burden of relay at minimum current setting at 10
times CT secondary rated current during:
- phase fault
- earth faults
VA
VA
6
Operating time
reset time
m secs
m secs
4.8
TRIPPING RELAYS
1
Manufacturer
2
Manufacturer type designation
3
Nominal operating voltage
V
4
Minimum operating voltage
V
5
Operation indicator
6
Operating time at nominal voltage
m sec
7
Contact rating:
Make and carry continuously
Make and carry for 3 secs
Break:
resistive
Inductive
VA
VA
watts
VA
4.9
OVERALL FAULT CLEARANCE TIMES AT
KHULNA
1
Busbar Faults
2
Main protection relay operating time
ms
Auxiliary and tripping relay time (where used)
ms
Circuit breaker time
ms
Total
ms
KHULNA –MONGLA 230kV Line Faults
SE-27
2.1
2.2
Fault Clearance at Khulna (Main 1)
Distance protection maximum operating time
ms
Permissive scheme time delay
ms
Auxiliary relay time (where used)
ms
Circuit breaker time
ms
Total clearance time at Khulna
ms
Fault Clearance at Khulna (Main 2)
Distance protection maximum operating time
ms
Permissive scheme time delay
ms
Auxiliary relay time (where used)
ms
Circuit breaker time
ms
Total clearance time at Khulna
ms
4.10
OVERALL FAULT CLEARANCE TIMES AT
Mongla
1
Busbar Faults
230 kV
Main protection relay operating time
ms
Auxiliary and tripping relay time (where used)
ms
Circuit breaker time
ms
Total
ms
2
KHULNA-MONGLA 230kV Line Faults
2.1
Fault Clearance at Mongla (Main 1)
2.2
Distance protection maximum operating time
ms
Permissive scheme time delay
ms
Auxiliary relay time (where used)
ms
Circuit breaker time
ms
Total clearance time at Mongla
ms
Fault Clearance at Mongla (Main 2)
Distance protection maximum operating time
SE-28
ms
Permissive scheme time delay
ms
Auxiliary relay time (where used)
ms
Circuit breaker time
ms
Total clearance time at Mongla
ms
SE-29
PART 5
Digital Fault and Disturbance Recorder [DFDR]
5.1
Digital Fault and Disturbance
Recorder [DFDR]
(A)
GENERAL
1
2
3
(B)
1
2
3
4
5
d
e
6
7
8
9
10
(C)
1
2
3
4
(D)
1
2
3
4
5
6
Manufacturer’s name & address
Type
Power Supply
-power Supply for printer
UNITS
VDC
VAC
ANALOGUE INPUTS
Number of Channel
-Expandability
Nominal Current
Nominal voltage
- Current
Frequency response
Cut-off frequency
(a) Bandwidth
(b) Attenuation at
(c) Auto adjusted anti-aliasing filters for
chosen sampling rate
Simultaneously programmable sampling
rate for all feeders/inputs
-Locally Changeable
-Remotely Changeable
Possible sampling rates
DC coupled inputs
Resolution
Accuracy
Burden
1. Current Circuit at IN
2. Voltage Circuit
Over load
1. Current
2. Voltage circuit
DIGITAL INPUTS
Amp
Vac/Vdc
mA/Amp
dB
dB
Yes/No
Yes/No
Yes/No
Samples/sec
Samples/sec
Samples/sec
Yes/No
bits
%
VA
VA
% In
% Vn
Number of Channel
-Expandability (Without and time skew)
Selectable input level
Type
Resolution
Vdc
ms
MEMORY
Size
Type
Pre-fault time (fast scanning rate)
Post-fault (fast scanning rate
Pre and Post-fault time (slow scanning rate)
In-Built hard disk (auto-maintained
MB
sec
sec
sec
GB
SE-30
BIDDER’S DATA
Sl.
(E)
ITEM
SENSORS/ TRIGERRING CRITERIA
UNITS
Yes/No
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
All sensors/trigerrs are preferable
Programmable and Virtually recordable
Logical combination sensor
Three phase over or under Voltage / Current
Mono phase over or under Voltage / Current
*du/dt, dp/dt, dq/dt, [Single/3 Phases], df/dt. etc.
RMS [Voltage / Current]
Zero Sequence
Negative, Positive Sequence
Frequency
DC Step
Pendling / Swing
Digital level and edge
Sensor trigger
Event Trigger
Manual Trigger
Remote Trigger
(F)
CLOCK SYSTEM
1.
2.
3.
4.
Internal Clock
Accuracy
External Synchronization
Time resolution between 2 synchronized pulses
(G)
1.
2.
3.
4.
(H)
BIDDER’S DATA
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
Yes/No
OUTPUT ALARM RELAY CONTACT
Max. operation Voltage DC/AC
Make and carry for 0.5 sec
Carry Continuously
Break ( DC ) – resistive
Vac / Vdc
A
A
W
INTERFACE FOR DATA COMMUNICATION
1.
2.
3.
4.
5.
Full definition compression
Maximum transmission rate
Standard serial port ( EIA-232-D)
Printer Port
Dedicated serial port for modem
Yes/No
bits / Sec
Yes / No
Yes/No
Yes/No
(I)
PRINTER DATA
1.
2.
3.
4.
Printer amplitude (scaling peak to peak)
Time Scal (mm / s )
Printer resolution
Auto printing
mm
Yes/No
(J)
Fault Priority transmission
Yes/No
(K)
Fault location (distance calculation)
Yes/No
(L)
Test certificates from internationally recognized
Laboratories
Yes/No
(M)
COMMUNICATION AND REMOTE ANALYZING UNIT
(MHz) Yes/No
1. Processor Pentium
2. Co-Processor Pentium
Yes/No
3. Main memory capacity
(Mb) Yes/No
4. Color graphics board S-VGA
Yes/No
5. Screen S-VGA
Yes/No
6. Hard disk unit
Yes/No
7. Printer
Yes/No
8. Modem
Yes/No
*Note: du/dt=Change of voltage, dp/dt=Change of active power, dq/dt=change of reactive power, df/dt=Change of frequency.
SE-31
SE-32
PART-6:
Extension of Existing AREVA, France make Fibre Optic
Multiplexer Equipment For Communication and Protection
6.1
FIBRE OPTIC MULTIPLEXER
EQUIPMENT
6.1.1
6.1.1.1
6.1.1.2
6.1.1.3
GENERAL:
Name of the Manufacturer
Model No.
Type:
Unit
Bidders Data
Bidder shall provide all necessary information which deem to be necessary to complete the project in
all respects.
SE-33
PART-7:
Extension of Existing AREVA, France make Remote Terminal
Unit (RTU) Equipment For SCADA
7.1
REMOTE TERMINAL UNIT (RTU)
EQUIPMENT
7.1.1
7.1.1.1
7.1.1.2
7.1.1.3
GENERAL:
Name of the Manufacturer
Model No.
Type:
Unit
Bidders Data
Bidder shall provide all necessary information which deem to be necessary to complete the project in
all respects.
SE-34
PART 8 - FIBRE OPTIC MULTIPLEXER EQUIPMENT
SL.
No.
1
2
3
Description
Unit
GENERAL:
Manufacturer
Model No.
Type
Type of multiplexer
Complying to ITU-T rec.
Transmission Capacity
Mbit/s
channels
channels
Access capacity on 64 kbit/s
Access capacity on 2 Mbit/s
Redundant central processor
Digital cross connect function
Available AGGREGATES:
Optical aggregates (ITU-T G.957)
Available TRUNK INTERFACES:
HDB3, 2 Mbit/s interfaces per module
No.
Complying to ITU-T rec.
HDSL, 2Mbit/s interface: no of copper wires
- Capacity on 2Mbit/s or on 1Mbit/s
- Capacity selectable
4
5
6
7
8
9
10
11
Available USER INTERFACES
Voice interfaces for trunk lines:
1 + 1 com path protection, available for all
Analogue, 4wire with E&M: Input level
Output level
Analogue, 2wire with E&M: Input level
Output level
Digital, 2Mbit/s CAS or PRI
Voice interfaces for remote Subscriber:
2wire, subscriber side
2wire, PABX side
Integrated teleprotection
No.
ch
ch / pair of wir
e
dBr
dBr
dBr
dBr
dBr
dBr
Interface for Commands:
Number of independent commands
Transmission time max.
Signal voltage
1 + 1 com path protection
Interface(s) for Differential Protection:
Electrical interface: G.703
Optical Interface
Data: channels per module
1 + 1 com path protection, available for all
V.24/V.28 (RS-232): up to 38.4kbit/s
V.11/X.24 (RS-422): 64kbit/s
V.35: 64kbit/s
V.36 (RS-449): 64kbit/s
G.703: 64kbit/s
Ethernet:
10/100 BaseT
WAN capacity
Protocols
No.
ms
Vpeak
kbit/s
kbit/s
No.
No.
No.
No.
No.
No.
Mbit/s
Mbit/s
Integrated alarm gathering module:
Number of external alarms per module
Auxiliary power supply for ext. contacts
No.
SE-35
Bidder’s Data
SL.
No.
12
13
14
Description
Unit
Network Management System
Type/Name of configuration tool
For fault / configuration management
For local / remote operation
Data communication network (DCN)
Ambient Conditions:
Storage: ETS 300 019-1-1, class 1.2
Transport: ETS 300 019-1-2, class 2.2
Operation: ETS 300 019-1-3, class 3.1E
Power Supply
Operation
Fully redundant power supply
Bidder’s Data
°C / % hum
°C / % hum
°C / % hum
VDC
Bidder shall provide all necessary information which deem to be necessary to complete the
project in all respects.
SE-36
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE F
DEPARTURES FROM THE SPECIFICATION
Schedule F: Departure from Specification
SF-1
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY,ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE F
DEPARTURES FROM THE SPECIFICATION
Bidders are to list all departures from the requirements of the specification in this schedule.
All departures whether they be commercial, financial, technical or of a contractual nature are
to be included and shall be submitted with the Technical proposal
Any item that does not have a departure listed in this schedule will be deemed to be in full
accordance with the requirements of the specification.
No other document or detail accompanying the tender will be considered in evaluating
departures.
Bidders are not permitted to offer any alternative to this schedule.
Item
Volume
Clause
Schedule F: Departure from Specification
Detail of Departure from Specification
SF-2
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE G
PROPOSED ALTERNATIVE STANDARDS
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE G
PROPOSED ALTERNATIVE STANDARDS TO WHICH
EQUIPMENT SHALL BE PROVIDED
The bidder shall list below all the alternative engineering and design Standards, which he
proposes to use in his design, manufacture and testing of equipment to be supplied. Should
these standards differ from the specified standard in any respect, the bidder shall detail the
differences between the proposed and specified standard.
Compliance with any standard equal or superior to those specified will be considered
acceptable.
In the absence of any listed alternative standard, it is deemed that the standards specified in
the Tender documents are fully complied with.
Specified Standard
Schedule G: Proposed Alternative standards
Alternative Standard
Number
Title
SG-2
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE H
PROPOSED CONTRACT AND SITE ORGANISATION
Schedule H: Proposed contract & site organization and site resources
SH-1
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE H
PROPOSED CONTRACT & SITE ORGANISATION
Personnel
Bidders should provide the names of suitably qualified personnel to meet the requirements specified
in Section 3 (Evaluation and Qualification Criteria) of Volume 1 of 3 of the Bidding Document. The
data on their experience should be supplied using the Form below for each candidate.
Form PER – 1: Proposed Personnel
1.
Title of position*
Name
2.
Title of position*
Name
3.
Title of position*
Name
4.
Title of position*
Name
*As listed in Section 3 (Evaluation and Qualification Criteria).
Schedule H: Proposed contract & site organization and site resources
SH-2
Form PER – 2: Resume of Proposed Personnel
Position
Personnel
information
Name
Date of birth
Professional qualifications
Present
employment
Name of employer
Address of employer
Telephone
Contact (manager / personnel officer)
Fax
E-mail
Job title
Years with present employer
Summarize professional experience in reverse chronological order. Indicate particular technical and
managerial experience relevant to the project.
From
To
Company / Project / Position / Relevant technical and management experience
Schedule H: Proposed contract & site organization and site resources
SH-3
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE I
DRAWING AND DOCUMENTS TO BE SUBMITTED WITH BID
Schedule I: Drawings and Documents
SI-1
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE I
DRAWINGS AND DOCUMENTS TO BE SUBMITTED WITH TENDER
Please refer to Volume 1 of 3 in Section 6 (Employers Requirements) of the
Bidding Document.
Schedule I: Drawings and Documents
SI-2
POWER GRID COMPANY OF BANGLADESH
LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF
230KV EXTENSION IN EXISTING 230/132KV SUBSTATIONS AT
KHULNA SOUTH ON TURNKEY BASIS
[CONTRACT NO. PGCB/230kV/SS/KS]
SCHEDULE J
PROPOSED SUBCONTRACTORS
Schedule J: Proposed Subcontractor
SJ-1
POWER GRID COMPANY OF BANGLADESH LIMITED
BIDDING DOCUMENT
FOR
DESIGN, SUPPLY, ERECTION, TESTING & COMMISSIONING OF 230kV EXTENSION IN EXISTING
230/132KV KHULNA SOUTH SUBSTATION ON TRUNKEY BASIS.
SCHEDULE J
PROPOSED SUBCONTRACTORS
The bidder shall propose a list of the Sub-contractors in the following table as per sub-clause
2.6, Item 7, Section-3, Evaluation and Qualification Criteria, Volume 1 of 3 of the Bidding
Document.
Sl. No.
Name and Address of the Subcontractor
Signature
Date
Schedule J: Proposed Subcontractor
SJ-2
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