CH- E-16 – GTP CONTENT
GTP No
1
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
28
29
30
31
32
33
34
35
36
37
38
39
Name of Items
11kV VCB (Outdoor)
33kV VCB (Outdoor) & 33 kV VCB (Indoor)
11kV CT
33kV CT
11kV Metering Unit
55sqmm AAAC
HTTV meter
POWER TRF
STATION TRF-100 kVA
Transformer oil
33kv HG fuse
11kv HG fuse
33kv Isolator
11kV Isolator
33KV AB SWITCH
11KV AB SWITCH
PSC Pole
100sqmm AAAC
148sqmm AAAC
33kv Pin Insulator
11kv Pin Insulator
33 kV Surge Arrester
11kv Surge Arrester
Numerical Relay
25KVA DTR GTP
63 KVA DTR GTP
100 KVA DTR GTP
33kV & 11kV V cross arm
RS joist
HT STAY SET
Stay wire
Tension clamp
Suspension clamp
Back clamp
F clamp
Flexible cu bond
Earthing pipe
Earthing Coil
33 kV B&S Insulator
CH- E-16 – GTP CONTENT
40
41
42
43
44
45
11 kV B&S Insulator
LT Distribution Box
LT 3 half-core
LT 2-CORE
ACSR Zebra
11kV 3 Core line 300sqmm
GTP NO-1 Guaranteed Technical Particulars of 11kV Circuit Breaker(Indoor)
SI. No
Name of the Particulars
Desired Value
1
Make
2
Service type
3
No. of Poles
4
Nominal system voltage
11 kV
5
Highest system voltage
12kV
6
Rated normal current at 50°C
Bidder's Offer
Indoor
3
i)
For Bus-bar of Circuit Breaker
1250A
ii)
For Interrupter
630A
7
Rated short circuit breaking current (rms)
25kA
8
Rated short circuit making current (peak)
62.5kA
9
Rated short time current withstand capability for
3 sec.
25kA
Page No-1 of 2 / 11kv VCB
10
Rated insulation level:
i)
One minute power frequency withstand voltage
to earth (wet and dry) rms
28kV
ii)
Impulse withstand voltage to earth with
1 .2/50 µsec, wave of +ve and —ve polarity
(Peak)
75KV
11
First — pole — to clear factor
1.5
12
Rated operating sequence (for auto reclosing)
0-0.3 Sec- CO-3 minCO
13
Maximum break time
3 cycles
14
Rated out of phase breaking current
25% of the symmetrical
short circuit breaking
current
15
Maximum pole scatter
10 mili seconds
16
Rated Auxiliary supply for spring charge motor,
lamp & heater circuit.
230V A.C
17
Rated supply voltage for trip/close coil
48 V D.C
Page No-2 of 2 / 11kv VCB
GTP NO - 2 (i) Guaranteed Technical Particulars of 33 KV VCB (Outdoor)
SI. No Name of the Particulars
1
Make
2
Service type
Indoor
3
No. of Poles
3
4
Nominal system voltage
33KV
5
Highest system voltage
36KV
6
Rated normal current at 50°C
i)
7
For Interrupter
Rated short circuit breaking current (rms)
25KA
Rated short circuit making current (peak)
62.5KA
9
Rated short time current withstand capability for 3
sec.
25KA
i)
Rated insulation level:
One minute power frequency withstand voltage to
earth (wet and dry) rms
Impulse withstand voltage to earth with
1 .2/50psec, wave of +ve and —ve polarity (Peak)
Bidder's Offer
1250A
8
10
ii)
Desired Value
70kv
170KV
Page No-1 of 3 / 33KV VCB intdoor type
First — pole — to clear factor
11
12
13
14
Rated operating sequence (for auto reclosing)
Maximum break time
Rated out of phase breaking current
1.5
0-0.3 Sec- CO-3 min-CO
3 cycles
25% of the symmetrical short
circuit breaking current
15
Maximum pole scatter
16
Rated Auxiliary supply for spring charge motor,
lamp & heater circuit.
230V A.C
17
Rated supply voltage for trip/close coil
48V D.C
18
Minimum creepage distance (mm)
900 mm
19
Minimum protected creepage distance (mm)
20
Total break time in MS
21
At 10% rated interrupting capacity
<80ms
21 a
At rated interrupting current
<80ms
21 b
Arcing Time
<15ms
22
Make time
<100ms
23
Minimum reclosing time at full rated interrupted MVA
from the instant of Trip coil energisation
10 mili seconds
As Per IS
300ms
Page No-2 of 3 / 33KV VCB intdoor type
24
Minimum dead time for 3 phase closing
25
one time dry power frequency withstand test voltage
between line terminal and ground objects
70kv
26
onemin dry power frequency withstand test voltage
between terminal with breaker contacts open
80kV
27
Type of main contacts
28
Type of Aux. Contacts
29
Materials of auxilliary contacts
30
Voltage distribution between breaker
31
Type of device if any ,used to limit the rate of rise or
restriking voltage
Nil
32
Voltage grading device if any used
Nil
33
Number of auxiliary contacts provided
34
300ms
Copper Alloy
i) those closed when breaker is closed
6
i) those open when breaker is closed
6
Type of operating mechanism
Page No-3 of 3 / 33KV VCB intdoor type
Spring charged due to closing both
manual and motorized Spring
operated
i) Opening
Spring charged due to closing both
manual and motorized Spring
operated
ii) Closing
35
Frequency at which contacts are to be replaced
36
Nos of terminal connetor
37
Short circuit type test certificate furnished
38
Circuit breaker weight
39
Minimum clearance in air
40
After 100 full short circuit
operations
6
i) Between phases
>480mm
ii)Live parts to earth
>320mm
iii) Live parts to ground level
>3700mm
iv)Between Liver parts & ground object
>320mm
Bushing of insulators
Page No-4 of 3 / 33KV VCB intdoor type
i) Type of bushing
Porcelain
ii)Dry 1 min power frequency withstand test voltage
70kV
iii)
Dry flash over value
>75kV
iv)
Wet flashover value
>75kV
v) 1.2/50 impulse withstand
170KVp
vi)
Creepage distance
900 mm
vii) Puncture value of bushing
>75kV
viii) Weight of bushing
<45kG
Page No-5 of 3 / 33KV VCB intdoor type
GTP NO -2 (ii) Guaranteed Technical Particulars of 33 KV VCB (Indoor)
SI. No Name of the Particulars
1
2
3
4
5
6
Desired Value
Bidder's Offer
Make
Service type
No. of Poles
Nominal system voltage
Highest system voltage
Indoor
3
33KV
36KV
Rated normal current at 50°C
i)
800A
For Bus-bar of Circuit Breaker
ii)
For Interrupter
630A
7
Rated short circuit breaking current (rms)
25KA
8
9
Rated short circuit making current (peak)
Rated short time current withstand capability for 3 sec.
10
Rated insulation level:
i)
One minute power frequency withstand voltage to
earth (wet and dry) rms
62.5KA
25 kA
70kV
Page No-6 of 3 / 33KV VCB intdoor type
ii)
Impulse withstand voltage to earth with
1 .2/50psec, wave of +ve and —ve polarity (Peak)
11
First — pole — to clear factor
12
Rated operating sequence (for auto reclosing)
170KV
1.5
0-0.3 Sec- CO-3 min-CO
13
Maximum break time
14
Rated out of phase breaking current
15
16
Maximum pole scatter
Rated Auxiliary supply for spring charge motor,
lamp & heater circuit.
17
Rated supply voltage for trip/close coil
48V D.C
18
Minimum creepage distance (mm)
900 mm
19
(a)
( b)
20
21
Total break time in MS
At 10% rated interrupting capacity
At rated interrupting current
Arcing Time
Make time
<80ms
<80ms
<15ms
<100ms
22
23
24
Minimum reclosing time at full rated interrupted MVA
from the instant of Trip coil energisation
Minimum dead time for 3 phase closing
one time dry power frequency withstand test voltage
between line terminal and ground objects
3 cycles
25% of the symmetrical short
circuit breaking current
10 mili seconds
48 V DC/230V A.C
300ms
300ms
70kv
Page No-7 of 3 / 33KV VCB intdoor type
25
26
27
28
29
30
31
32
33
one time dry power frequency withstand test voltage
between terminal with breaker contacts open
Type of main contacts
Type of Aux. Contacts
Materials of auxilliary contacts
Voltage distribution between breaker
Type of device if any ,used to limit the rate of rise or
restriking voltage
Voltage grading device if any used
Number of auxiliary contacts provided
i) those closed when breaker is closed
ii) those open when breaker is closed
Type of operating mechanism
i) Opening
ii) Closing
34
Frequency at which contacts are to be replaced
35
Nos of terminal connetor
36
37
Short circuit type test certificate furnished
Circuit breaker weight
80kv
Copper Alloy
Nil
Nil
6
6
Spring charged due to closing both
manual and motorized Spring
operated
Spring charged due to closing both
manual and motorized Spring
operated
After 100 full short circuit
operations
6
GTP NO – 3 GUARANTEED TECHNICAL PARTICULARS FOR 11KV CURRENT TRANSFORMERS
Sl.
No.
Name of the Particulars
Desired Value
1
Make
2
Type of CT Installation
3
Type of mounting
4
Suitable for system frequency
5
Rated Voltage (KV rms)
11
6
Nominal System Voltage (KV rms)
11
7
Highest System Voltage (KV rms)
12
8
Current Ratio (A/A)
9
Method of earthing the system where the current transformers
will be installed
10 Rated Continous Thermal Current (A)
11
Single phase, dead tank, oil-filled
Poly Crate hermetically sealed
outdoor, self-cooled.
Pedestal type
50 HZ (- 5% to +3%)
400-200 -100/1-1-1 A
Effectively earthed
120% of rated primary current
Acceptable limit of temperature rise above 500C ambient
temperature for continuous operation at rated continuous
thermal current
(a)W inding
400C
(b) OIL
350C
Bidder’s Offer
(c )External surface of the core, metallic parts in contact with
or adjacent to, insulation.
11 1.2/50 micro second lighting impulse withstand voltage (kVP)
12
(dry)
13
1 Minute dry power frequency withstand voltage primary (kV
rms)
14 1 Minute dry power frequency withstand voltage secondary
(KV rms)
40ºC
75
28
3
15 Minimum creepage distance of porcelain Housing (mm)
350
Rated short time withstand current for 3 second duration at all
16 ratios (KA rms)
25
Instrument security factor at all ratios for metering core
17
18
Maximum rated short time thermal current density of the
primary winding copper conductor (A/mm2 ) at all ratios
Type of Core
Not more than 5.0
92
Torroidal type
0. 15g (Vertical)
19
Seismic acceleration
Accuracy class of standard C.T to be used during testing
20 towards determination of ratio errors and phase angle errors
for metering cores.
0.3g (Horizontal)
0.05 or better.
GTP NO -4 GUARANTEED TECHNICAL PARTICULARS FOR 33 KV CURRENT
TRANSFORMERS
Sl.
Name of the Particulars
No.
1
Make
Desired Value
Single phase, dead tank, oil
filled, hermetically sealed,
outdoor, self-cooled
2
Type of CT/Installation.
3
Type of mounting.
4
Suitable for system frequency.
5
Rated voltage (KV rms)
33
6
Nominal system voltage (KV rms)
33
7
Highest system voltage (KV rms)
36
8
Current ratio (A/A)
9
Method of earthing the system where the
current transformer will be installed.
10
Rated continuous thermal current (A)
Bidder's Offer
Pedestal type
50 HZ (+ 5 % to -3%)
a) 400-200/1-1-1A
Solidly Effectively earthed.
120 % of rated primary
current
Page No-1 of 3 / 33kv CT
11
(a)
(b)
(c)
Acceptable limit of temperature rise
above 50°C ambient temperature for
continous operation at rated continuous
thermal current.
Winding
45°C
Oil
40°C
External surface of the core, metallic
parts in contact with or adjacent to,
45°C
insulation.
12
Acceptable partial discharge level
Less than 10 pico coulombs
13
Maximum radio interference voltage at
l. l times the maximum rated voltage.
Less than 500 micro volts
14
l.2/50 micro second lightning impulse
withstand voltage (KVP) (dry)
170
15
16
1 minute dry power frequency withstand
voltage primary (KV rms)
Switching Impulse with stand and
voltage (KVP)
70
17
l Minute dry power frequency withstand
voltage secondary (KV rms)
3
18
Minimum creepage distance of porcelain
Housing (mm)
900
19
Rated short time withstand current for 3
second at all ratios (KA rms)
25KA
20
Instrument security factor at all ratios for
metering core.
Not more than 5.0
Page No-2 of 3 / 33kv CT
21
Minimum rated short time thermal
current density of the primary winding at
all ratios (A/mm2)
22
Application, current ratio, output burden,
accuracy class, minimum knee point
voltage, secondary winding resistance,
maximum excitation current at minimum
knee point voltage etc.
23
Type of core
24
Seismic acceleration
25
Accuracy class of standard C.T. to be
used during testing towards
determination of ratio errors and phase
angle errors for metering cores.
As per clause No9.6.3- Note
of IS: 2705 (Part-I)/l992
0.15g (Vertical)
0.3g (Horizontal)
0.05 or better.
Page No-3 of 3 / 33kv CT
GTP NO- 5 GUARANTEED TECHNICAL PARTICULARS OF OUTDOOR OIL IMMERSED 3P4W,11 KV,5A MU (CT: PT UNITS).
Sl no Particulars
Requirement
1
Maker’s name & adress
To be indicated
2
Manufacturer’s Type & Design
To be indicated
3
Type of cooling
To be indicated
4
Nominal System Voltage
11 KV
5
Highest System Voltage
12 KV
6
Frequency.
Specification of CT & PT of Metering
Unit
50 HZ
7
To be furnished by the bidder
Current Transformer
Type
Accuracy Class
A
Oil immersed
0.2
Rated output
15 VA
Insulation level
28KVrms / 75 KVpk
Short time thermal current rating for 1
sec
Saturation factor
Normal current density of primary
winding
Knee Point Voltage
CT Primary 6 KA for up to20/5A &
13KA for >20/5A
To be indicated
=<1 .6 Amps per Sq.mm
To be indicated
Page No-1 of 9 / 11kV metering unit
Continuous percentage over load
120%
ISF
As per IS
Potential Transformer
B
Type
PT ratio
Rated output VA/phase
Class of accuracy
Oil immersed
11 KV/√3V /110/ √3V
50
0.2
Insulation level
28KVrms / 75 KVpk
Winding connection
Rated voltage factor & duration
8
Star/Star
To be indicated
Dimension of MS hot dip Galvanized tank
i
Height mm
ii
Breadth mm
iii
Length mm
Thickness of MS Tank Side walls
9
i)
Bottom
To be indicated
3.15mm
ii
Top
5 mm
iii
Edge bending in the Top Cover
To be provided
iv
Standard pressure & duration that can
be withstand.
To be indicated
Weight of core and winding
10
Current transformer
A.
Core
To be indicated
Primary winding
To be indicated
Page No-2 of 9 / 11kV metering unit
Secondary winding
To be indicated
Potential transformer
B.
Core
To be indicated
Primary winding
To be indicated
Secondary winding
To be indicated
i) Quantity of oil in Ltr
11
ii)
12
( Min 45 Ltrs)
To be indicated
Grade of Oil
To be indicated
Total weight of complete ME including
all accessories and oil
To be indicated
Resistance of primary & secondary winding per phase at 75° C:CT Winding (i) Primary
13
PT Winding
14
To be indicated
(ii) Secondary
To be indicated
(i) Primary
To be indicated
(ii) Secondary
To be indicated
Maximum attainable winding
temperature
85° C
Minimum phase to phase distance
255mm
Shortest distance between metal part &
earth
190 mm
15
Make & type of HT bushing
To be indicated
Page No-3 of 9 / 11kV metering unit
16
Creepage distance of HV bushing
17
18
19
i
ii
iii
20
Bi-metallic terminal connector with nut,
plain washer, spring washer & check
nut suitable for aluminum conductor as
per CT rating.
300mm (Min)
6 nos to be provided
Type of core material
To be indicated
Type & thickness of gasket used on
Top cover tank
To be indicated
Secondary terminal box
To be indicated
HV bushing
To be indicated
Details of Metering Unit
CT details
A
Cross section area of each turn of
CT winding (in sq. mm.)
Primary winding
To be indicated
Secondary winding
To be indicated
No. of turns
Primary winding
To be indicated
Secondary winding
To be indicated
Winding material
Page No-4 of 9 / 11kV metering unit
Primary winding
To be indicated
Secondary winding
To be indicated
PT details
B
i
Cross Section area of each turn of
PT (in sq. mm.)
a
Primary winding
To be indicated
b
Secondary winding
To be indicated
ii
Number of turns
a
Primary winding
To be indicated
b
Secondary winding
To be indicated
c
Winding materials
i
Primary winding
Secondary winding
Identification/marking of
Primary terminals
Incoming
Outgoing
Secondary terminals
CTs
PTs
Size and material of
Primary studs
Secondary studs
ii
21
i.
a
b
ii
a
b
22
i.
ii
To be indicated
To be indicated
RM, YM, BM
RL, YL, BL
1s1- 1s2, 2s1-2s2, 3s1-3s2
r,y,b,n
M12 up to 20A & M16 >20A
M6
Page No-5 of 9 / 11kV metering unit
23
24
25
Secondary Chamber shall have double
door type & sealing arrangement in
both the doors.
Secondary chamber shall have
double door (inner & outer) with
suitable arrangement for sealing
of both the doors. The inner door
shall be of transparent
polycarbonate so that secondary
terminal connections can be
viewed with out breaking the inner
door seals.
Name Plate
The name plate shall be nondetachable type & fixed with rivets,
not with bolts & nuts. The
nameplate should bear year,
month of manufacture , Guaranty
period & other data as per IS.
Sealing arrangements
The secondary terminal box cover,
tank cover and inspection cover
sealing arrangements have to be
done with sealing bolts at all corners
and bolts should be at least 10 mm
diameter GI bolts spaced maximum
70 mm apart. Sealing holes also to be
provided in the bolts fitted with
bushing & body for sealing, so that
one can not open the bushing with out
breaking seals.
Page No-6 of 9 / 11kV metering unit
26
Galvanization of Tank
Metering Unit tank including top
cover shall be hot deep
galvanized.
27
Gap between I/C & O/G Studs of same
phase
minimum 15º angle with the
vertical axis to maintain a good
distance at stud levels.
GUARANTEE TECHNICAL PARTICULARS FOR OIL
Sl. No Characteristic.
Particulars.
The oil shall be clear and
transparent and free from
suspended matter or sediments
and should conform to or latest
versions.
IS-335/93
1
Appearance.
2
Density at 27 degrees C (max)
3
Kinematic Viscosity at 27 degrees C
(max)
4
To be furnished by the bidder
Interfacial Tension at 27 Degrees C (max)
Flash point, pensky – marten (closed)
(min)
5
0.89 g/cm.
27 CST.
0.04 N/M.
140 Degrees C.
Pour point (max)
6
-10 Degrees C.
Neutralisation Value:
7.
a) Total acidity (max)
b) In-organic acidity alkalinity.
0.01.
Nil
Page No-7 of 9 / 11kV metering unit
8
Corrosive sulphur.
Non-corrosive.
Electric Strength (breakdown voltage/ minute)
9
10
a)
New unfiltered oil.
30 KV (rms)
b)
After filtration.
50 KV (rms)
Dielectric dissipation factor(Tan delta at
90 Deg. C (min)).
0.005.
Specific resistance (Resistivity).
11
12
a) At 90 Deg. C (min)
30x1 012 ohms- cm.
b) At 27 Deg. C (min)
500x1 012 ohms-cm
Oxidation stability
a) Neutralisation value after oxidation
(max)
b) Total sludge after oxidation (max)
0.2 mg KOH/g
0.05% by Weight.
Ageing characteristics after accelerating ageing (open breaker method with
copper catalyst) for 96 Hrs.as per ASTM D. 1934-1978)
a) Specific resistance (Resistivity)
a. At 27 Deg. C (min)
b. At 90 Deg. C (min)
2.5 x 1012 ohms-cm
0.20 x 1012 ohms-cm
13
Page No-8 of 9 / 11kV metering unit
b) Dielectric dissipation factor Tan
delta at 90 Deg. C (max)
0.2
c) Total sludge value (max)
0.5
d) Total acidity (max)
0.5
14
Presence of oxidation inhibitor.
Nil
15
Water content (max)
50 ppm
Page No-9 of 9 / 11kV metering unit
GTP NO-6 GUARANTEED TECHNICAL PARTICUALRS OF 55MM2 AAAC
Sl.No.
Description
1
Manufacture’s Address
2
Indian Standard No. IS 398 (Part-4)1 994
3
IEC Standard No.IEC 1089
4
Materials of conductor
Unit
55mm
2
IS 398 (Part-4)1 994
IEC 1089
AAAC
Balco, Hindalco,Kunj
Alloys,Nalco & any other
approved sources.
5
Aluminum alloy redraw rod manufacturer
6
Drawing aluminum wire manufacturer
7
Standing complete conductor manufacturer
8
Nos. of Strands
9
Dia of each strand
mm
10
Total cross-sectional area of conductor
mm
11
Overall dia of stranded conductor
Mm
9.45
12
Mass of conductor per kilometer(without grease)
Kg
149.2
7
2
3.15
55
Bidder'sOffer
13
Mass of grease per kilometer of conductor (Approx.)
Kg
N.A.
14
Total mass of greased conductor per
ki lometer(Approx.)
Kg
149.2 without grease
15
Conductor grease type
16
Ultimate strength of conductor
Newton
16030
17
Assumed equivalent modulous of elasticity of
conductor
N/ mm
2
62038
18
Assumed equivalent co-efficient of elasticity
N/ mm
2
62038
19
Assumed equivalent co-efficient of linear expansion
Per °C
23.0x1 0-6
20
Maximum length of conductor supplied in one drum
Km
6.0±5%
21
Maximum D.C. resistance at 20ºC
Ohm/Km
0.621
22
Maximum full load current at 75°C (40°C ambient)
Ampere
191
23
Individual Aluminum alloy strands
a. Tensile breaking stress
N.A.
N/ mm
2
299.4
b. Elongation on 200mm length in breaking
%
4
c. Maximum electrical resistance at 20°C
Ohm/Km
4.29
24
Particulars of raw material
Minimum purity of Aluminum alloy
%
97.25
Type
Si-Mg
i. Si
%
0.50 to 0.90
ii. Mg
%
0.6 to 0.90
iii. Fe Max
%
0.5
iv. Cu Max
%
0.1
v.Mn Max
%
0.03
vi. Cr Max
%
0.03
vii.Zn Max
%
0.1
viii.
%
0.06
%
0.03
Aluminum redraw rod conforming to
Elements
B Max
ix. Other Element each Max
Total Max
25
DC resistance of conductor at 20°C(Max)
26
Standard length of conductor that can be
manufactured
0.1
Ohm/Km
0.621
Meter
2000±5%
27
Maximum length of conductor that can be
manufactured
28
Toleranceonstandardlengthofconductor
29
Direction of layer for outside layer
30
Weight of the drum (only)
Meter
3000
%
±5%
RH/LH
RH
Kg
150 to 180
GTP NO-7 GUARANTEED TECHNICAL PARTICULARS FOR 3 PHASE 4 WIRE CT! PT OPERATED
FULLY STATIC AMR COMPATIBLE TRI-VECTOR ENERGY METERS ( Common Protocol Energy Meter Conforming to companion
standard for IEC 62056!IS1 5959) Category-A
Sl.
Particulars
No.
Desired Value
1
Make
2
Type
3
Country of origin
4
Application
5
Rated Voltage
6
Rated Current (Basic current)
7
Frequency
50 Hz ± 5 %
8
Overload capacity
200% of Ib
9
Minimum starting current in % of
base current
10 Short Time Current
3PH 4 Wire, Tri vector Energy Meter (AMR
Compatible)
India
3 phase 4 wire, CT PT operated
(i)For CT/PT operated HT Meters-Suitable for
operation from 11 0V Ph-Ph or 63.5V Ph-N
1A for -/1A,5A for -/5A
As per IS 14697: 1999
As per IS 14697: 1999
11 Loss in potential circuit
Less than 1.5 Watt & 8VA per phase
12 Loss in Current circuit
Less than 1 VA
13 Power Factor
Bidder’s Data
0.0 Lag -Unity- 0.0 Lead
Page No-1 of 10 / HTTV 3 PH Meter
14 Change in error due to
a.
Variation in frequency
50 Hz +/- 5%
b.
Variation in temperature
As per IS 14697: 1999
Variation in voltage
As per IS 14697: 1999
c.
15 Accuracy Class
Constructional Requirement/Meter
Cover
LT- 0.5s, HT-0.2s
As per Clause:-5.0 of Tech.
16
Sealing arrangement
17 Meter Cover & Case
18
Meter Case Opening Temper
Recording
Specification.
As per Clause:-5.1 of Tech. Specification.
As per Clause:-5.1.1 of Tech. Specification.
19 Terminal & Terminal Block
As per Clause:-5.2 of Tech. Specification.
20 Terminal Cover
As per Clause:-5.3 of Tech. Specification.
21 Terminal Arrangement
As per Clause:-5.4 of Tech. Specification.
22 Connection Diagram
As per Clause:-5.5 of Tech. Specification.
23 Sealing of Meter
As per Clause:-5.6 of Tech. Specification.
Page No-2 of 10 / HTTV 3 PH Meter
24
Working environment & degree of
protection.
As per Clause:-6 of Tech. Specification.
25
Manufacturing Process assembly &
Testing
As per Clause:-7 of Tech. Specification.
26 Displays
As per Clause:-8.0 of Tech. Specification.
27 Non Volatile Memory
28 Battery Back
up
Performance under
29 Influence Quantities
The data stored in the meters shall not be lost
in the event of power failure. The meter shall
have Non Volatile Memory (NVM), which does
not need any battery backup. The NVM shall
have a minimum retention period of 10 years.
In case of failure of power supply the meter
could be powered up the meter could be
powered up through an internal battery
backup with a push button arrangement.
As per IS -14697/1 999
(re-affirmed 2004) & CBIP
Page No-3 of 10 / HTTV 3 PH Meter
Technical Report
Out Put Device
As per Clause:-10 of Tech.
30
Specification.
31 RTC
As per Clause:-11 of Tech. Specification.
Quantities to be measured &
32 displayed.
As per Clause:-12 of Tech. Specification.
33 Demand Integration Period
Should be programmable & 15 min by default.
34 MD Reset
Auto reset at 24:00 hrs at the end of each
billing cycle.
35 Marking
As per Clause:-15 of Tech. Specification.
36 Communication Capability
As per Clause:-16 of Tech. Specification.
37 HHU
As per Clause:-17 of Tech. Specification.
38 Free supply of HHU
One DLMS Compliant HHU shall be provided
by the supplier to DISCOM free of cost for
each 50(fifty) meters for data down loading. It
shall be compatible to the DLMS compliant
energy meters that are to be
procured/supplied on the basis of this
technical specification
Tamper & Fraud
As per Clause:-18 of Tech.
39
Page No-4 of 10 / HTTV 3 PH Meter
39
monitoring features
40 Abnormality Events Detection
41
Load Survey capability Parameter
Logged
Specification.
As per Table A6.1 to A6.7 “Data Exchange for
Electricity Meter Reading, Tariff and Load
Control – Companion Specification”
enclosed).
1 .Real Time Clock – Date and Time.
1
2.Current – IR 3. Current – IY 4.Current – IB
2
5.Voltage – VRN 6.Voltage – VYN 7.Voltage –
VBN 8.Block Energy kWh
9.Block Energy – kvarh – lag 10.Block Energy
– kvarh – lead 11 .Block Energy – kVAh
ii.
Logging interval
iii. No. of days of Load Survey
iv. Apparent Calculation
42 TOD TIMING (Both MD & ENERGY)
(PROGRAMMABLE,15 Minutes by default )
60 power on days
Lag + Lead
00: 00 Hrs to 06:00 Hrs 06:00 Hrs to 24:00
H rs
Page No-5 of 10 / HTTV 3 PH Meter
43 MD RESET REQUIRED
44 Software Locking
45 Software
46 Meter Reading Protocol
AUTO MODE ONLY, MANUAL RESET NOT
REQUIRED
The meter shall have password protected
software locking provision for changing the
TOD timings & MD integration period.
The firm has to provide required base
computer & MRI software for data down
loading & analysis with free of cost.
The Supplier has to provide Meter Reading
Protocols for billing parameters, tamper data
etc. at free of cost.
GUARANTED TECHNICAL PARTICULARS FOR POLYCARBONATE OR SMC OR COMBINATION OF POLYCARBONATE & SMC PILFER
PROOF METER BOX TO HOUSE THE THREE PHASE FOUR WIRE HTTV ENERGY METERS
Sl.
Characteristics
No.
Requirements
1
Manufacturer’s / Supplier’s name and
address with works address.
2
Material used for box body
Poly Carbonate/SMC (Sheet Moulding
Compound)ref-IS: 13410/1992 /IS:14772
:2000Combined
3
Color of Box
Dark Admiral Gray/off White/Transparent
4
Dimensions of box (L x W x H)
5
Meter Fixing Arrangement
Bidders Data
45x38x20 CM (approx)
Adjustable Meter Mounting Arrangement may
be provided to accommodate any make of
Meters (like Secure, L&T etc.).
Page No-6 of 10 / HTTV 3 PH Meter
6
Earthing Provisions
7
Thickness of meter box
a.
From Back Side
b.
From all other sides
8
To be provided
2.5 mm Back Side 2.0 mm all other side.
Clearance of meter from box surface
approx. :(Varies from meter to meter)
a.
Right , Left
b.
Top side
1 cm
c.
Bottom side ( from meter terminals)
12 cm
d.
Bottom side ( from terminals cover)
8 cm
e.
Front side
11cm
9
Additional “D” Port
10 cm
Additional “D” Port provision provided in the
inner door of the box with sealing arrangement
for downloading data through MRI.
Page No-7 of 10 / HTTV 3 PH Meter
10
Doors
11 Push button hole
12 The material of inner door shall be
Provision of two (Inner door & outer door)
arrangement to be provided.
Push button hole shall be done by DISCOMs
at the time of installation.
SMC
For cable entry, one suitable circular holes
13 Cable Entry Hole.
14
Type of Use Meter Box should be
suitable for
15 Suitable to house
fitted with adjustable glands will be provided at
the bottom of the box for cable inlet and outlet.
Internal diameter of the gland will be such as
to accommodate the control cable having
outer diameter 25-30mm.The cable entry hole
position can be changed by DISCOMs as per
the field requirement & will be narrated during
the placement of Purchase Order.
Meter Box should be suitable for indoor &
outdoor use.
The meter box will be suitable to house one
number three-phase four-wire HTTV energy
meter & a modem of any make.
Page No-8 of 10 / HTTV 3 PH Meter
16 The meter box shall comply with
IS:1 3410- 1992
Meter Box will have a roof tapering
17 Roof tapering
arrangement for easy flow of rainwater, as per
sample.
18 Hinges
Box cover will be fixed with minimum three
nos hinges in each door well protected against
corrosion. Box cover will be able to open by
more than 120 degrees. Concealed hinges
should fix the Box and cover, with hardware
from inside in such a manner that it can’t be
manipulated from outside.
19 Gasket
Soft rubber gasket for protection from ingress
of dust and water will be provided on all
around the box.
20 Handle
Handle/Knob will be provided on the Box door
for easy door opening.
The box shall be provided with two (inner &
outer) doors. A viewing window must be
provided in inner door if not transparent. One
21 Inner door, viewing window & D-Port. D-Port provision for communication must be
provided in the inner door of each box with
sealing arrangements.
Page No-9 of 10 / HTTV 3 PH Meter
Fixing Holes
Box shall be provided with 4 nos. fixing holes
of 6 mm diameter at all four corners of meter
box.
For holding and sealing the outer door, U-
22
Sealing & Latches.
shaped latches/clamps with two sealing holes
will be provided. Two nos Latches will be
provided on the base of the box. These
metallic parts will be protected against
corrosion. Provision shall be made for sealing
of doors at two locations.
The viewing window for meter reading will be
24 Viewing window
made of break resistant, UV stabilized,
transparent Polycarbonate of minimum 2.0
mm. Thickness the transparent window will be
properly welded/fixed in rigid way with meter
Adjustable meter mounting arrangement to be
provided in such a way that the display portion
of any make meter can be easily aligned with
25 Adjustable meter mounting Arrangem
et the viewing window of outer door, So that
meter reading can be done easily without
opening any door of meter box.
Purchase order No. & Date, Property of
26 Name Plate.
Owner Name-OPTCL. will be mentioned on
metallic name plate in such a manner that it
will not be erased & removed easily. Name of
Manufacturer will be embossed on meter box
cover.
Page No-10 of 10 / HTTV 3 PH Meter
GTP NO-8 GUARANTEED TECHNICAL PARTICULARS FOR POWER
TRANSFORMERS OF3.1 5 MVA,5 MVA & 8 MVA
Sl. No .
1
a)
b)
c)
d)
e)
f)
g)
2
3
a)
b)
4
a)
b)
5
6
7
8
a)
b)
9
10
Name of the Particulars
Name and address of the Manufacturer
Transformer
HV & LV Bushings
Bimetallic connectors
Transformer Oil
On load tap changer
Instruments
Neutral Bushing CTs
Service ( Indoor / Outdoor )
Normal continuous rating in KVA under site conditions at all
taps :
HV winding (KVA)
LV winding (KVA)
Rated Voltage
HV winding (KV )
LV winding (KV)
Rated frequency (Hz)
No. of phases
Type of transformer
Connections
HV winding
LV winding
Connections symbols
HV – LV
Tappings
Bidder's offer
a)
b)
Range
Number of steps
c)
Position of tapping on HT winding for high voltage variation
d)
e) 11
a)
b)
c)
d)
e)
Reference ambient temperatures
Maximum ambient air temperature (0C)
Maximum daily average ambient temperature (0C)
Minimum ambient air temperature (0C)
Maximum yearly weighted average ambient temperature (0C)
Maximum temperature rise over ambient temperature
Top oil by thermometer (0C)
HV & LV windings by resistance measurement (0C)
Hot Spot Temperature rise of windings(0 C)
Limit for hot spot temperature for which the transformer is
designed (0 C)
Temperature gradient between windings and oil (0C)
f)
Type of maximum winding temperature indicator (0C)
12
a)
b)
c)
d)
13
14
15
Voltage to earth for which the star point will be insulated
Cooling type
Losses
a)
No-Load loss at rated voltage & rated frequency (KW)
b)
Load loss at rated current at Normal Tap at 750 C (KW )
Max. Current density in winding at rated current for normal tap
position
HV winding (Amps/ sq.mm.)
LV winding (Amps / sq.mm.)
16
a)
b)
17
a)
b)
Impedance voltage at rated current ,rated frequency and at 750 C
expressed as percentage of rated voltage at :Principal (normal) tap (%)
Highest tap (%)
c)
18
a)
b)
c)
19
a)
b)
Lowest tap (%)
Reactance at rated current & frequency as percentage of rated
voltage at:
Principal (normal) tap
Highest Tap
Lowest Tap
Resistance at 750 C
H.V. winding at normal tap position
L.V. winding
Resistance voltage drop at 750 C winding temperature expressed as
percent of rated voltage (%)
c)
i) Principal/ normal tap
ii) Highest tap
iii)
Lowest tap
20
a)
b)
c)
Insulation level
Separate source power frequency voltage withstand
i) HV winding (KV rms)
ii) LV winding (KV rms)
Induced over voltage withstand
i) HV winding (KV rms)
ii) LV winding (KV rms)
Full wave lightning impulse withstand voltage
i) HV winding (KV peak)
d) Power frequency high voltage tests
i) Test voltage for one minute withstand test on high voltage
windings (induced)
ii) Test voltage for one minute withstand test on low voltage
windings
iii) Test voltage for one minute withstand test on neutral end of low
voltage windings
e) Lightning impulse withstand tests
i) Impulse test on high voltage winding 1.2/50 p sec full wave
withstand (KV peak)
ii) Impulse test on low voltage winding 1.2/50 p sec full wave
withstand (KV peak)
iii) Wave form for impulse test
No load current, no load loss, no load power factor at normal
21
ratio and frequency (Amp/ KW/ P.F.)
a) 10 percent of rated voltage
b) 25 percent of rated voltage
c) 50 percent of rated voltage
d) 85 percent of rated voltage
e) 100 percent of rated voltage
f) 105 percent of rated voltage
g) 110 percent of rated voltage
h) 112.5 percent of rated voltage
i) 115 percent of rated voltage
j) 120 percent of rated voltage
k) 121 percent of rated voltage
22 Efficiency at 75º C at unity power factor
a) Full load
b) 75% load
c) 50% load
d) 25% load
23 (a)
a)
b)
The minimum percentage of load at which the transformer will
run at maximum efficiency (%)
b) Maximum efficiency of the transformer
24 Regulation at full load at 75º C
a) At unity power factor (%)
b) At 0.8 power factor (lagging) (%)
25 Core data
Grade of core material used
Thickness of core plate lamination (mm)
c)
Whether core laminations are of HIB cold rolled grain oriented
d) Details of oil ducts in core, if any
i) Whether in the plane & at right angle to the plane of winding
a)
b)
c)
a)
b)
c)
d)
e)
f)
ii) Across the plane of lamination
e) i) Insulation of core lamination
ii) Insulation of core plates
iii) Type of core joints(Mitred or Mitred Step-lap)
26 Flux density
Designed maximum flux density at rated voltage and rated
frequency (Tesla)
Designed maximum operating flux density which the
transformer can withstand for one minute at normal tap
(Tesla)
Designed maximum operating flux density which the
transformer can withstand for five seconds at normal tap
(Tesla)
27 Inter-Tap insulation
Extent of extreme end turns reinforcement
Extent of end turns reinforcement
Extent of turn adjacent to tapping reinforced
Test voltage for 10 seconds 50Hz inter-turn insulation test on (a)
Test voltage for 10 seconds 50Hz inter-turn insulation test on
(b)
Test voltage for 10 seconds 50Hz inter-turn insulation test on (c)
28 Windings:
a) Material
b) Type of windings:
i) HV windings
ii)
LV windings
c)
d)
e)
29
Insulation of HV windings
Insulation of LV windings
Insulation between HV & LV windings
Continuous rating under following conditions:
a)
At 40°C ambient air temp. at site
b)
At 30°C ambient air temp. at site
c)
At 20°C ambient air temp. at site
30 Transformer Tank
a)
Material
b)
Thickness
- Top
- Sides
- Bottom
c)
Details of painting
- Inner surface
- Outer surface
31 Dimensions of 3 phase transformers:
a)
Max. Height to top of bushings (mm)
b)
Over-all length (mm)
c)
Over-all breadth (mm)
Weight data of transformer components : (Tolerance + 5% )
32
(approximate values not allowed )
a)
b)
c)
Core excluding clamping (Kg)
Core with clamping (Kg)
HV winding insulated conductor (Kg)
d)
e)
f)
g)
h)
i)
LV winding Insulated conductor (Kg)
Coils with insulation (Kg.)
Core and windings (Kg)
Weight of steel (Kg)
Fittings and accessories (Kg)
Oil required for first filling including 10% extra (ltrs / Kg )
1. Oil in main tank ( Ltrs)
Oil in the conservator (Ltrs)
Oil in the radiators ( Ltrs )
Oil in the OLTC (Ltrs.)
Overall total quantity of oil with 10% extra oil for first
filling (ltrs / Kg)
1. Transportation weight excluding accessories (Kg)
2. Shipping details
i) Weight of heaviest package (Kg.)
ii) Dimension of largest package (Kg)
Untanking weight (Kg)
Total weight of transformer with oil and fittings (Kg)
Bushing data :
Type of bushing insulator
i) HV
ii) LV
i i i ) N e utra l
Material of bushing (inner part / outer part)
Weight of bushing insulator (Kg.)
Quantity of oil in one bushing (lt.)
Minimum dry withstand & flash over power frequency voltage of
bushing (KV)
2.
3.
4.
5.
j)
k)
l)
33
a)
b)
c)
d)
e)
f)
g)
h)
i)
j)
k)
l)
m)
Minimum wet withstand & flash over power frequency voltage
of bushing (KV)
Minimum withstand & flashover impulse level (KV)
Voltage rating (KV)
Current rating (Amps.)
Thermal Short Time current & Duration
Rated Dynamic current & its duration
Cantilever with stand loading
Clearance in oil
- phase to phase (mm)
n)
o)
- phase to earth (mm)
Creepage distance in oil & air (mm)
Minimum level of immersing / medium (oil ) (mm)
p)
Maximum pressure of immersing medium (oil) Kg/ cm2
q)
r)
Free space required at top for removal of bushings (mm)
Angle of mounting
34
Details of CT to be provided in the neutral for REF protection.
a)
b)
c)
Outdoor bushing type
No. of cores and their function
Location (Line / Neutral)
d)
Current rating for various cores (Primary / Secondary)
e)
VA burden / Knee Point voltage (Core wise)
f)
35
Magnetising current at half knee point voltage. (mA)
Classification (PS class) core wise
Test voltage
Construction details
Conservator (Main Transformer and OLTC)
a)
Total volume of the Conservator (Cub mtr / Ltr.)
g)
h)
i)
b)
36
37
a)
b)
38
a)
b)
c)
Volume of the conservator between the highest and lowest level
(Cubic mtr. / Ltrs )
Calculated time constants for natural cooling
Type of axial coil supports :
HV winding
LV winding
Details of On Load tap changer
Make
Type
Rating
i)
ii)
iii)
iv)
Rated Voltage
Rated current
Ste p v olta ge
Number of steps
v)Rated Short Circuit Current
Whether Diverter switch provided with gas vent and buchholz
relay (Yes / No )
Whether a separate oil surge relay with trip contacts provided
e)
(Yes / No)
f) Pressure relief valve
Details of motor device unit housed in kiosk / mounted on tap
g)
changer
h)
running
d)
Whether Remote control panel provided with Control scheme
for simultaneous operation of Tap changer when transformers
are
in parallel and independent control when in independent
i) Details
of equipment in the OLTC kiosk
operation.
j) Details of OLTC panels
i) automatic tap changer relay
ii) literature of all the relays
iii) dimensions of OLTC, Panel L x B x H
iv) thickness of sheet
v) degree of protection
vi) details of equipment supplied
39 Dispatch details :
a) Approx. mass of heaviest Package (Kg)
b) Approx. dimensions of largest Package
i )
Length (mm)
i i )
Breadth (mm)
a)
b)
c)
d)
e)
f)
a)
b)
c)
d)
e)
f)
g)
i i i )
Height (mm)
40 Un-tanking height (mm)
41 Bimetallic connectors
HV
/
LV
Normal current rating (A)
Short time current rating (A)
Tensile strength (Kg)
Maximum temperature limit
Dimensional sketch enclosed indicating tolerances (Yes/No)
Minimum clearance (mm)
- Phase to phase
Phase to Earth
42CORE ASSEMBLY :Core diameter (mm )
Core window height (mm )
Core leg centre (mm )
Gross core cross – sectional area (m2)
Total height of core (mm )
Details of top end frame
Details of Bottom end frame
Details of clamp plate (material, thickness, insulation)
h)
i) Total core weight (Kg )
j)
Core loss, basing on core loss graph at operating flux density
(rated voltage and rated frequency ) ( KW )
k) Core stacking factor
l) Net core area (Sq.m)
m)
Margin towards corner joints, cross-fluxing, dielectric loss
(KW)
n) Total core loss at rated voltage and rated frequency (KW )
o) Describe location / method of core grounding
p) Details of core- belting
i) Material , grade and type
ii)
Width
iii)
Thickness
iv) Fixing method
43 DETAILS OF WINDING
a) Type of winding
b) Material of the winding conductor
c) Maximum current density of windings at rated current and
conductor area
d) Whether windings are pre-shrunk ?
e) Whether adjustable coil clamps are provided for HV and LV
windings ?
f) Whether steel rings are used for the windings ? If so, whether
these are split ?
g)
Whether electrostatic shields are provided to obtain uniform voltage
distribution in the windings ?
h) Winding Insulation ( Type & Class )
i) Insulating material , used for
i) H.V winding
ii)
LV winding
iii)
Tapping connection
j) Insulating material used between
i) L.V and H.V winding
ii) Core & L.V winding
k) H.V to H.V winding between phases
l) Type of axial supports
i) H.V winding
ii)
L.V winding
m) Type of radial supports
i) H.V winding
ii)
L.V winding
n) Maximum allowable torque on coil clamping bolts
o) Clamping ring details
i) Thickness of ring mm
ii) Diameter of ring mm
iii) No. & size of pressure screw
p) Bare conductor size (mm)
i) HV
ii) LV
q) Insulated conductor size (mm)
i) HV
ii) LV
r) No. of conductor in parallel ( Nos.)
i) HV
ii) LV
s) No. of turns / phase
i) HV
ii) LV
t) No. of discs / phase
i) HV
ii) LV
u) No. of turns / Disc
i) HV
ii) LV
v) Gap between discs (mm )
i) HV
ii) LV
w) Inside diameter (mm )
i) HV
ii) LV
x) Outside diameter (mm )
i) HV
ii) LV
y) Axial height after shrinkage (mm )
i) HV
ii) LV
z) D.C Resistance
0
i) L.V winding at 75 C (Ohms )
0
ii) H.V winding at normal tap at 75 C (Ohms )
iii)
H.V winding at highest tap at 750 C (Ohms )
iv)
H.V winding at lowest tap at 750 C (Ohms )
2
0
2
0
v) Total I R losses at 75 C for normal tap (KW )
vi) Total I R losses at 75 C for highest tap (KW )
vii ) Total I2R losses at 750 C for lowest tap (KW )
0
vii Stray losses including eddy current losses in winding at 75 C
i) (KW)
a) Normal tap position
b) Highest tap position
c) Lowest tap position
d)
Any special measures, taken to reduce eddy current
losses and stray losses. Mention in details
ix) Load losses at 750 C (I2 R + Stray )
a) Normal tap position (KW )
b) Highest tap position (KW)
c) Lowest tap position (KW )
Details of special arrangement, provided to improve surge voltage
x)
distribution in the windings.
44 DETAILS OF TANK :
a) Material of Transformer tank
b) Type of tank
c) Thickness of sheet (No approximate value to be mentioned)
i) Sides (mm)
ii)
Bottom (mm )
iii)
Cover (mm )
iv ) Radiators (mm)
d) Inside dimensions of main tank (No approximation in
dimensions to be used )
i) Length (mm)
ii)
Breadth (mm)
iii)
Height (mm )
e) Outside dimensions of main tank (No approximation in
dimensions to be used )
i) Length (mm)
ii)
Breadth (mm)
iii)
Height (mm)
f) Vacuum recommended for hot oil circulation (torr / mm of Hg)
g) Vacuum to be maintained during oil filling in transformer tank
(torr / mm of Hg)
h) Vacuum to which the tank can be subjected without distortion
(torr / mm of Hg)
i) No. of bi-directional wheels provided
j) Track gauge required for the wheels
i) Transverse axis
ii) Longitudinal axis
k) Type and make of pressure relief device and minimum
pressure at which it operates (Kpa )
45 CONSERVATOR :a) Thickness of sheet (mm)
b) Size (Dia x length ) (mm)
c) Total volume (Litres)
Volume between the highest and lowest visible oil levels
d)
(Litres)
GTP NO- 9 GUARANTEED AND OTHER PARTICULARS FOR 100kVA STATION
TRANSFORMERS
Sl. No. Name of the Particulars
Desired Value
Bidder's Offer
1 Make
2 Name of Manufacturer
3 Place of Manufacture
4 Voltage Ratio
33/0.4kV
5 Rating in kVA
100kVA
6 Core Material used and Grade:
a)
Flux density
b)
Over fluxing without saturation
(Curve to be furnished by the
Manufacturer in support of his
claim)
7 Maximum temperature rise of:
a)
windings by resistance method
b)
Oil by thermometer
8 Magnetizing (no-load) current at:
a)
90% Voltage
b)
100% Voltage
c)
110% Voltage
9 Core loss in watts:
a)
Normal voltage
b)
Maximum voltage
10 Resistance of windings at 20°C,750C
(with 5% tolerance)
a)
HV Winding (ohms)
b)
LV Winding (ohms)
Load losses (watts) at 75°C
11 at normal tap(100% Load
Condition)
TOTAL Losses (Load loss
+No Load Loss)at 100%
12 load at 75°C at rated
Voltage, frequency & at
normal tap.
13 Total Losses at 50% load at 75°C
14 Current density used for: (Ampere/sq mm)
a)
HV Winding.
b)
LV Winding.
15 Clearances: (mm)
a)
Core and LV
b)
LV and HV
c)
HV Phase to phase
d)
End insulation clearance to
e)
Any
earthpoint of winding to tank.
16 Efficiency at 75°C
a)
Unity P.F and
b)
0.8 P.F.
1)
125°C load
2)
100°C load
3)
75°C load
4)
50°C load
5)
25°C load
17
Regulation at:
a)
Unit P.F.
b)
0.8 P.F. at 75ºC
18
% Impedance at 75ºC
19
Flash test:(i)
HV 70 kV/ 50HZ for 1 minute
(ii)
LV 3 kV /50 Hz for 1 minutes.
20
Over potential test (Double voltage and
Double frequency for 1 minute)
21
22
Impulse test.
Mass of : (kg)
a)
b)
c)
d)
e)
f)
23
Oil Data:
1)
2)
3)
4)
24
Quantity for first filling
(minimum) (litre)
Grade of oil used.
Maker’s name
BDV at the time of filling (kV)
Transformer:
1)
2)
3)
a)
b)
25
Core lamination (minimum)
Windings (minimum)
Tank and fittings
Oil
Oil quantity (minimum) (litre)
Total weight
4)
Radiation:
1 )
e x c l u d i n g
2)
3)
4)
Overall length x breadth x
height (mm x mm x mm)
Tank length x breadth x height
Thickness of plates for
Side plate (min)
Top and bottom plate (min)
Conservator Dimensions.
Heat dissipation by tank
walls top and
bottom
Heat dissipation by cooling tube
Diameter and thickness of
cooling tube.
Whether calculation sheet for
selecting cooling
area to ensure that the
transformer is capable
of giving continuous rated
output without
exceeding temperature
rise is enclosed.
26
27
28
29
30
Inter layer insulation provided in design for:
1)
Top and bottom layer
2)
In between all layer
3)
Details of end insulation.
Whether wedges are provided at
4)
50ºC turns of the HV coil.
Insulation materials provided.
a)
For Conductors
1 HV
2 LV
b)
For Core.
Material and Size of the wire used.
HV
Dia (mm)
Number of conductors in
Total
cross sectional area
parallel
LV
Dia (mm)
Number of conductors in
Total cross sectional area
parallel
Whether the name plate gives all particulars as required in
Particulars
of bushings HV/LV
tender
1)
Maker’s name
2)
Type IS-3347/IS-2099/IS-7421
3)
Rating as per IS
4)
Dry power frequency voltage
withstand test
5)
Wet power frequency
voltage withstand test.
Note:
The following shall be specifically confirmed:
1)
Whether the offer conforms to the limits of impedance mentioned in the specification.
2)
Whether the offer conforms to the limits of temperature rise mentioned in the specification.
3)
Whether the losses of the transformers offered are within the limits specified.
4)
Whether the transformer offered is already type tested for the design and test reports
enclosed.
Sl. No. Description
1
Core Grade
2
Core diameter(mm)
3
Gross core area(Sq cm)
4
Net core area(Sq cm)
5
6
Flux density(Tesla)
Mass of core(Kg)
7
Loss per kg of core at the
specified flux density(watt)
To be specified by Bidders
8
10
Core window height(mm)
Center to enter
distance of the
core(mm)
No.of LV Turns
11
No.of HV turns
12
Size of LV
conductor
bare/covered
(mm)
13
Size o HV
conductor
bare/covered
(mm)
14
No. of parallels
15
Current density of LV
winding.(A/sq mm)
9
16
17
18
19
20
21
22
23
24
25
Current density of HV
winding.(A/sq mm)
Wt. of the LV winding for
Transformer (kg)
Wt. of the HV winding for
Transformer (Kg)
No. of LV Coils/phase
No. of HV Coils/phase
Height of LV Winding.(mm)
Height of HV Winding.(mm)
ID/OD of HV winding(mm)
ID/OD of LV winding(mm)
Size of the duct in LV winding(mm)
26
Size of the duct in HV winding(mm)
27
Size of the duct between
HV and LV(mm)
29
30
HV winding to LV
winding
HV winding to tank clearance(mm)
clearance(mm)
Calculated impedance(%)
31
HV to earth creepage distance(mm)
32
LV to earth creepage distance(mm)
28
GTP NO – 10 GUARANTEED TECHNICAL PARTICULARS of Transformer OIL
SL. NO.
1
Name of the
Particulars
Appearance
4
Density at 29.5° C (Max)
gm/cc
Viscosity, Kinematic at 27° C
(Max)
Interfacial Tension at 27° C
(Min) Newton / M
5
Flash point, Pensky Marten
(closed) in °C (min).
2
3
6
7
Pour point in ° C (Max)
Neutralisation value
a) Total acidity, mg KOH/gm
(Max)
b) Inorganic acidity / alkalinity
8
Corrosive sulphur (Copper
strip) 19 hours at 140°C
9
Electric strength (Breakdown
Voltage ) KV (rms).
10
a) New unfiltered oil (min).
b) After filteration (min).
Dielectric dissipation factor
(Tan Delta) at 90°C (Max).
Desired Value
Clear and transparent
free from suspended
matter or sediments.
0.89
27
0.04
140
-6
0.03
Nil
Non corrosive
60
60
0.002
Bidder's Offer
11
12
13
Specific resistance (resistivity)
a) at 90° C , ohm-cms (Min)
35 x 1012
b) at 27° C , ohm-cms (Min)
1500 x 1012
Oxidation stability.
a) Neutralisation value, after
Oxidation for 164 hours at
100°C mg KOH/gm (Max).
0.4
b) Total sludge, after 164
hours at 100°C wt. % (max).
0.1
Ageing characteristics after
accelerated Ageing (open
beaker method with copper
Catalyst) for 96 hours at 115°C
a) Specific
resistance(resistivity)
i) at 27°C, ohm-cms (Min)
i) at 90°C, ohm-cms (Min)
b) Dielectric dissipation factor
(Tan Delta ) at 90°C, , ohmcms (Min)
c)Total acidity, mg KOH/gm
(max)
d) Total sludge value, Wt. %
(max)
2.5 x 1012
0.2 x 1012
0.2
0.05
0.05
14
Presence of oxidation inhibitor
15
Water content, ppm (max)
i) Proportion of classes of
hydrocarbons in the crude oil
including content of aromatic
hydrocarbons.
16
ii) Details of barrel (Size,
gauge inside/outside
coating/weight of empty drum
not less than 18 Kg.)
iii) List of equipments for
testing of oil as per revised
ISS
iv)Electric strength(breakdown
voltage ) KV (Min)
a) Value of the fresh sample in
the supplied sealed drums
KV(Min).
b) Value after filling in
transformer upto & within 3
months (Min)
The oil shall not contain
anti oxidant additives.
20
GTP NO-11 GUARANTEED TECHNICAL PARTICULARS FOR 33kV , 200 AMP, 3 POLE, H.G. FUSE
Sl.
No.
Name of the Particulars
Desired Value
1
Maker's name and country or origin
To be specified by the tenderer .
2
Suitable for mounting
Horizontal only.
3
Number of supporting post insulator
per phase
4 nos. 22KV/24KV Post Insulator
per phase as per ISS - 2544/ 1973
4
Post Insulator
(a)
Maker's name and country or orgin
(b)
Type of cemeting
(c )
(d)
(e)
(f)
(g)
(h)
(I )
5
(a)
(b)
One minute power frequency
withstand voltage dry
One minute power frequency
withstand voltage wet.
Visible discharge voltage
Dry Flashover Voltage
Power frequency puncture withstand
voltage
Impulse withstand voltage(Switching
Position)
Creepage distance
Impulse withstand voltage for positive
and negative polarity (1.2/50 micro
second wave)
Across the isolating distance
To earth & between poles
Bidder’s
Offer
To be specified by the tenderder.
To be quoted original cemented only.
80 KV RMS
70 KV RMS.
27 KV RMS
To be specified by the tenderder.
1.3 times of actual dry flash over
voltage.
170KV (peak)
380mm minimum. (actual
creepage distance for which type
test have been conducted is to be
specified by the bidder )
195 KV (peak)
170 KV (peak)
Page No-1 of 2 / HG FUse 33 kV
6
(a)
(b)
7
8
9
10
One minute power frequency
withstand voltage
Across the isolating distance
To earth & between poles
Rated normal current and rated
frequency.
Operating Voltage
Vertical clearance from top of
insulator cap to mounting Channel
Height of the riser for carrying the
horns.
11
Details of Arcing Horns
12
Riser Unit
(250mm total height).
13
Supporting Channels
14
Galvanisation
15
Weight of each pole (complete)
80 KV (RMS)
70 KV (RMS)
200 amps, 50 Hz , 3 Pole
33 KV
508 mm (minimum)
250mm from the cap (top) of
insulator.
Copper rod having 8.32 mm dia
Silver-plated provided with
screwing arrangement for fixing
use wire made of copper casting.
(Total length 995mm). All the
bolts, nuts and washers should be
made out of brass.
(a) The shape of connectors may be
made of straight copper Flat of
(b) 170mm height G.I. Riser made
of 25mm nominal bore medium
gauge G.I. Pipe welded with 2 nos.
G.I. Flat of 35 x 5 mm at both ends
fixed with 10mm dia stainless
steel, bolts and nuts with flat
stainless steel spring washers.
100 x 50 x 6 mm M.S. Channel
(galvanized)
All ferrous parts should be
galvanized as per IS-2633/1 972 &
all non-ferrous part should be duly
electroplated with silver.
To be specified by the tenderder.
GTP NO-12
GUARANTEED TECHNICAL PARTICULARS FOR 11kV 200 AMP, 3 POLE, H.G. FUSE .
Sl.
No.
Name of the Particulars
1
Maker's name and country or origin
2
Suitable for mounting
Horizontal only.
3
Number of supporting post insulator
per phase
2 nos. 12KV Post Insulator per phase as
per ISS -2544/ 1973
4
Post Insulator
Desired Value
(a)
Maker's name and country or orgin
To be specified by the tenderer.
(b)
Type of cementing
To be quoted original cemented only.
(c )
One minute power frequency
withstand voltage dry
28 KV RMS
(d)
One minute power frequency
withstand voltage wet.
28 KV RMS
Bidder’s Offer
Page No-1 of 4 / HG FUSE11 kV
(e)
Visible discharge voltage
9KV RMS
Dry Flashover Voltage
To be specified by the tenderer.
(g)
Power frequency puncture withstand
voltage
1.3 times of actual dry flash over voltage.
(h)
Impulse withstand voltage(Switching
Position)
75KV (peak)
(I )
Creepage distance
380mm minimum. (actual creepage
distance for which type test have been
conducted is to be specified by the bidder
)
5
Impulse withstand voltage for
positive and negative polarity (1.2/50
micro second wave)
(f)
(a)
Across the isolating distance
85KV (peak)
(b)
To earth & between poles
75 KV (peak)
6
One minute power frequency
withstand voltage
(a)
Across the isolating distance
32 KV (RMS)
(b)
To earth & between poles
28 KV (RMS)
Page No-2 of 4 / HG FUSE11 kV
7
Rated normal current and rated
frequency.
200 amps, 50 Hz , 3 Pole
8
Operating Voltage
11 KV
9
Vertical clearance from top of
insulator cap to mounting Channel
254 mm (minimum)
10
Height of the riser for carrying the
horns.
150mm from the cap (top) of insulator.
Details of Arcing Horns
Copper rod having 7.62 mm dia Silverplated provided with screwing
arrangement for fixing use wire made of
copper casting. (Total length 635mm). All
the bolts, nuts and washers should be
made out of brass.
11
Page No-3 of 4 / HG FUSE11 kV
Riser Unit
12
(250mm total height).
(a) The shape of connectors may be made
of straight copper Flat of size adequate
enough to carry a current density not less
than 1.5 Amp/ mm2. 2 Nos of 3/8” G.I.
Bolts, double nuts, plain and spring
washers and 2 nos. solder less bimetallic
shockets per each connector suitable up
to 100 mm2 AAA conductor.
(b) 100mm height G.I. Riser made of
19mm nominal bore medium gauge G.I.
Pipe welded with 2 nos. G.I. Flat of 30 x 5
mm at both ends fixed with 10mm dia
stainless steel, bolts and nuts with flat
stainless steel spring washers.
Supporting Channels
75 x 40 x 6 mm M.S. Channel
(galvanized)
14
Galvanisation
All ferrous parts should be galvanized as
per IS-2633/1972 & all non-ferrous part
should be duly electroplated with silver.
15
Weight of each pole (complete)
To be specified by the tenderer.
13
Page No-4 of 4 / HG FUSE11 kV
GTP NO- 13 GURANTEED TECHNICAL PARTICULARS OF ISOLATOR(33kV)
Sl.No
Name of the Particulars
Desired Value
Double end break Centre post rotating,
gang operated
1
Main switch
2
Service
3
Applicable standard
4
Pole
5
Rated voltage nominal/ Maximum
6
Rated Frequency
7
System earthing
Effectively earthed
8
Temperature rise
As per relevant IS/IEC publication
9
Insulation level impulse with stand voltage
a) Across Isolating distance
Bidder's Offer
Outdoor
IS : 9921 / IEC-129/IEC-62271-102
3 pole gang operator
33/36 kV
50 Hz (+5% to -3%)
195 kVpeak
Page No-1 of 2 / 33kV Isolator
b) To earth & between poles
170 kVpeak
10 1 minute power frequency withstand voltage
a) Across Isolating distance
80 kVpeak
b) To earth & between poles
70 kVpeak
11
Rated current in Amp
1250
12
Short time current for 3 sec
25kA
13
Operating mechanism
14
Auxiliary voltage
a) Control & Inter lock
15
Motorised
33kV
48 DC 80% to 110%
Safe duration of overload
Page No-2 of 2 / 33kV Isolator
16
a)150% of rated current
5 minute
b)120% of rated current
30 minute
Minimum creepage distance of support
and Rotating insulator
i) Mounting structure
ii) Terminal connector type
iii)
Control
900mm
Upright on G.I structure
Bimetallic clamp
Local
Page No-3 of 2 / 33kV Isolator