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BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 1 of 14
A. 415V PMCC/MCC, 415V AC & 220V DC DB/SVB/FB,220V DC STARTER
1.1 Make : BHEL-EPD
1.2 Type : Drawout for PMCC/PCC/MCC/SVB
Fixed for DB/FB/MCCB
1.3 Reference Standard : IS: 13947and IEC 60439-1
1.4 Voltage (Nom./ variation) Volt : 415 / Voltage variation is ±10% and
Frequency variation is +3 to -5%
1.5 Phase, Frequency No., Hz : 3, 50
1.6 Short Circuit Rating
a) Interrupting Symmetrical KA : 50
b) Short time for 1 sec. KA rms : 50
1.7 Insulation Level
1-min., 50 Hz Voltage withstand KV rms : 2.5
1.8 Construction
a) Metal clad, air insulated, floor mounting Yes/No : Yes
b) Suitable for mounting against
building wall Yes/No : Yes
1.9 Enclosure
a) Degree of Protection : IP – 52 for rating <=1600A
IP – 42 for rating >1600A
b) Minimum thickness of sheet metal mm : 1.6 for door, 2.0 for frame
1.10 PMCC/MCC fully assembled,
wired and tested at factory Yes/No : Yes
R1
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BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 2 of 14
2.0 CONSTRUCTION
2.1 Design
a) Completely compartmentalised : YES, with metal/insulating partitions between
compartments except for FBs which are non-
compartmentalised.
b) Working height limits from floor level : limited between 250 and 1800mm
2.2 Drawout features provided for
a) Circuit breaker with SERVICE, TEST
and ISOLATED position Yes/No : Yes
b) Voltage Transformers Yes/No : Yes
c) Protective Relays Yes/No : Yes
d) MCC module provided with service
test& isolated position Yes/No : Yes
2.3 Breaker Cubicle
a) Breaker cubicles restricted
to bottom 2-tiers only Yes/No : Yes
b) Working height limits
from floor level : limited between 450 and 1800mm
2.4 Control Compartment provided
with individual front access door? : Yes
2.5 PMCC/MCC section provided with
a) Removable back cover : Yes
b) Full height cable chamber : Yes
2.6 Horizontal wire way for inter panel wiring : Yes
2.7 All meter, switch and relays flush
R1
R1
R1
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 3 of 14
mounted type Yes/No: Yes
3.0 BUSBAR
3.1 Make : HINDALCO/JINDAL
3.2 Material : Aluminium,grade-63401
3.3 Reference, Standard : IS 5082 (E91E)
3.4 Maximum temperature rise in Deg.over 50 Deg.C : 40 with plain bolted joint
: 55 with silver plated bolted joint
3.5 Short-time current for 1 sec. KA rms. : 105
3.6 Minimum clearance of barebusbar and connection
a) Phase to phase mm : 25
b) Phase to ground mm : 25
3.7 Busbars colour coded Yes/No : Yes
3.8 Bus Support Insulator
a) Make : DDE
b) Type : Non-hygroscopic,
Flame retardant, High tensile strength Track resistance type.
c) Voltage class KV : 415
d)Creepage @25 mm/kV : Min 28 mm
4.0 CIRCUIT BREAKER
4.1 Make :C&SElectric/L&T/GE/Siemens/Schnieder
4.2 Type : Air break
4.3 Reference Standard : IEC: 60947-2
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 4 of 14
4.4 Rated Voltage V : 415
4.5 Rated Frequency Hz : 50
4.6 No. of Poles : 3
4.7 Rated Currents
a) Continuous (at site condition,
50 Deg.C ambient & within cubicle) Amp. : As per rating approved
b) Short-time Current for1 second KA rms. : 50
4.8 Maximum temperature rise over
50 Deg.C ambient Deg.C. : 40
4.9 Rated Operating Duty : Continuous
4.10 Operating duty : 0-3'-CO-3'-CO
4.11 Rated Making Current KA.peak : 105
4.12 Insulation Level
1-minute 50 Hz voltage withstand KV rms. : 2.5
4.13 Minimum clearance in air
a) Between poles mm : 25
b) Between live parts & ground mm : 25
4.14 Operating Mechanism
a) Type : Closing – Motor wound spring
Tripping – shunt trip
b) No. of breaker operations stored :
c) Anti-pumping features provided ? : Yes
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 5 of 14
4.15 Spring Charging Motor
a) Rating W : As per manufacturers standard
b) Voltage V : 220V D.C.
4.16 Closing Coil
a) Voltage V : 220V D.C.
b) Permissible Voltage variation % : (85 - 110%)
4.17 Tripping Coil
a) Voltage V : 220V D.C.
b) Permissible Voltage variation % : (70 - 110%)
4.18 For trip circuit supervision can the
tripping coil be connected in series with :
a) Green lamps when breaker is open : Yes
b) Red lamps when breaker is closed : Yes
5.0 FUSE
5.1 Make : S&S/L&T/GE/Siemens/Alstom /CGL
5.2 Type : HRC
5.3 Reference standard : IS: 13703 / IEC: 60269
5.4 Rupturing capacity KArms (sym) : AC – 80, DC - 25
6.0 CONTACTORS
6.1 Make :C&SElectric/L&T/GE/Siemens/Schnieder/ABB
6.2 Type : Air break electro magnetic
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 6 of 14
6.3 Reference standard : IS: 13947-4-1 / IEC-60947-4-1
6.4 Duty class : AC - Class III-category
AC3 for unidirectional drives and
AC4 for bi- directional /inching duty drives
DC - Class I - category DC2.
6.5 Utilization category : Reversible Motor – AC4
Non - Reversible Motor – AC3
6.6 Auxiliary Contacts furnished per Contactor :
a) Normally open (NO) : 4 min
b) Normally closed (NC) : 4 min
7.0 CONTROL & INDICATIONS
7.1 Push Buttons
a) Make :BCH/L&T/Schneider/Siemens/Tecknic Control
Cands/C&S Electric/GE/Vaishno/ABB/GEC
Alstom/RAAS Control/TM/Honeywell/
Tele mechanic
b) Type & Cat. No. :Spring Return Push To Actuate
c) Contact rating : DDE
i) Make & Continuous Amp :
• 240 V AC Amp : DDE & 10A
• 220 V DC Amp : DDE & 2A
7.2 Lamps (LED Type)
a) Make : Siemens/RASS(C&S Electric)/Vaishno/Alstom Ltd.
BCH/GE/Schneider/Concord/ABB/Essen Deinki/
TM/Siemens/Tecknic Controls/Binay Siemens
b) Type & Cat. No. : Led Clustered Aluminium Indium
Gallium Phosphide Technology & DDE
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 7 of 14
c) Voltage : DDE
8.0 CURRENT TRANSFORMER
8.1 Make : Automatic Electric/Indcoil/Kappa Electricals/
Pragathi Electricals/Prayog/Silkaans/C&S
Electric/Precise Electricals/Southern
Electricals/ABB/Siemens/Kalpa/Jyoti/Telk
8.2 Type : Cast Resin
8.3 Reference Standard : IS: 2705
8.4 C.T. Ratios as per drawings ? : Yes
8.5 Rated frequency : 50 Hz
8.6 Class/ALF or ISF/VA burden furnished for :
a) Differential C.T. : PS
b) Relaying C.T. : 5P10
c) Metering C.T. : Class 0.5 ISF < 5
8.7 Short-Circuit Withstand
a) Short-time current for 1 sec. KA rms. : 50
b) Dynamic current KA peak : 105
8.8 Class of Insulation : ‘E’ or Better
8.9 Temperature rise over 50 Deg.C ambient : 30
8.10 Basic Insulation level KV rms : 2.5
9.0 VOLTAGE TRANSFORMER
9.1 Make : Automatic Electric/Indcoil/Kappa Electricals/
Pragathi Electricals/Prayog/Silkaans/C&S
Electric/Precise Electricals/Southern
Electricals/ABB/Siemens/Kalpa/Jyoti/Telk
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 8 of 14
9.2 Type : Cast Resin
9.3 Reference Standard : IS: 3156
9.4 Voltage ratio : 415/110
9.5 Rated frequency : 50 Hz
9.6 Accuracy class : 3P
9.7 VA burden : DDE
9.8 Over Voltage factor
a) Continuous : 1.9
b) 30 seconds : 3
9.9 Class of Insulation : ‘E’ or Better
9.10 Temperature rise over 50 Deg.C ambient : 40
9.11 Basic Impulse Level Kvp : 2.5
9.12 Winding Connection
a) Primary : star
b) Secondary : star
9.13 Fuses
a) Continuous rating Amp. : DDE
b) Symmetrical fault rating KA rms. : 50
10.0 RELAYS
10.1 Drawout type with built in test facilities : Yes
10.2 Type of mounting : Fixed
10.3 Reference Standard : IS-3231
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 9 of 14
10.4 Protections offered for feeders:
1. Incomer feeder : 51, 51N, 51SN, 64, 27, 74(TCS)
VT Fuse Failure, CB failure
2. Motor Feeder :Thermal model with negative sequence
current,Voltage compensated acceleration
U/V,O/V, overload protection, short circuit&
SC backup,Current unbalance, Ground
Fault, Temperate monitoring (stator, bearing ), Phase reversal.
3. Outgoing Feeder : 51, 51N
Apart from protection relays, each electrically operated breaker shall be provided withanti-pumping (94)(inbuilt of breaker), lockout (86) Lockout relay shall be hand reset type.
11.0 METERS
11.1 Make : DDE
11.2 Type : switchboard
11.3 Reference Standard : IS-722
11.4 Size : 96 x 96 mm with 240 Deg. scale,
11.5 Scale : Full
11.6 Accuracy class : ± 2%
11.7 Meter Switch
a) Make : DDE
b) Type : Rotary
c) Cat. No. : DDE
12.0 SECONDARY WIRING
12.1 Type of Insulation : PVC
12.2 Voltage grade : 1100 V
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 10 of 14
12.3 Conductor material : Copper
12.4 Conductor Size (Minimum)
a) Potential & Control Circuit : 1.5 Sq.mm
b) Current Circuit : 2.5 Sq.mm
12.5 Wires identified at both
ends with markers ? : YES
13.0 TERMINAL BLOCK
13.1 Make : Phoenix/Connect well/Elemex/Wago/
Essen Deinki/Technoplast/Tosha/
Controls&Switchgear/Jainson
13.2 Type : box-clamp
13.3 Voltage grade : 1100 V
14.0 CABLE TERMINATION
14.1 Cable termination/connection
furnished as specified : Yes
14.2 Cable termination kit furnished
a) Make : NA
b) Type : NA
c) Complete with all accessories : NA
14.3 Cable entry provision from top and bottom Yes/No : Yes
14.4 Cable Lugs
a) Type : crimp
b) Material : tinned copper
14.5 Cable Gland
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 11 of 14
a) Type : Double compression
b) Material : Nickel plated Brass
c) With tapered washer : YES
d) With armour clamp : YES
14.6 Removable Gland Plate
a) Material for multicore cable : CRCA
b) Material for I/C cable : CRCA
c) Thickness of the plate : 3
15.0 BUSDUCT CONNECTION
15.1 Busduct connection suitable for-
a) Top entry Yes/No : YES
b) Side entry Yes/No : NO
15.2 Busduct connection as per
drawing furnished Yes/No : Yes
16.0 GROUND BUS
16.1 Ground bus furnished : YES
16.2 Material : Galvanized steel
16.3 Size : 75 x 10 mm
17.0 NAME PLATE
17.1 Material : anodized aluminium
17.2 Thickness : 3 mm
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV SWITCHGEAR
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 12 of 14
18.0 SPACE HEATER/PLUG SOCKET
18.1 Cubicle Heater
a) Thermostat controlled : Yes
18.2 Plug Socket
a) Type : 3 pin , Industrial
b) Rating : 5 A
19.0 A.C./D.C. SUPPLY
19.1 Isolating switch fuse unit for incoming supply :
a) A.C. - type & rating : 4-pole, double throw & DDE
b) D.C. - type & rating : Double pole, double throw with off & DDE
c) Three position DC selector switch : Rotary type & 220V DC
19.2 Isolating switch fused unit at each cubicle :
a) A.C. - type & rating : 4-pole, single throw & 415V
b) D.C. - type & rating : 2- pole double throw with off & 220V
20.0 PAINTING
20.1 Finish-
a) Inside : as per specification
b) Outside : battle ship grey IS: 632 as per IS-5
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV BUSDUCT
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 13 of 14
B. 415 V NON SEGREGATED PHASE BUSDUCT
1.1 Type : Non-segregated
1.2 Service : Indoor/Outdoor
1.3 Rated Voltage V : 415
1.4 Phase Nos. : 3
1.5 Frequency Hz : 50
1.6 Combined Voltage And : 10%(absolute sum)
Frequency Variation
1.7 Service voltage : 240 V AC �10%, 1-phase
(for space heater)
2.0 One(1) minute power frequency : 2.5 KV(rms)
Withstand voltage(minimum)
3.0 Rated Continuous Current Amp :As per approved drawing
4.0 Maximum temperature rise over 50 Deg.C ambient
a) Bus conductor
i) With Silver Plated bolted joints : 55�C
ii) With Plain or Tin joints : 40�C
b) Bus enclosure and structure : Accessible Portion 20°C
Non-accessible Portion 30°C
5.0 Rated Short Time Current Symmetrical Momentary
KA for 1 Sec. KA peak
Main Run . : 50 KA 105 KA
6.0 Material
a) Conductor :Aluminium
BHEL-EPD
BANGALORE
DOCUMENT TITLE:
2X660MW IB VALLEY TPS
DATA SHEET
LV BUSDUCT
DOCUMENT NO. EP-3-GN-107-001
SECTION : II
REV NO. :01 ; DATE: 5/03/2014
Page 14 of 14
b) Enclosure :Sheet steel below 2000A
Aluminium alloy Above 2000A
7.0 Shipping Section(Maximum) : 3M
8.0 Bus Insulator
a) Voltage class KV : 1.1
b) Creepage distance mm : 28mm/KV
c) Material : Flame retardant, non-hygroscopic, high
strength track resistant
d) Conductor mounting : Fastened through fixed and slip joints
e) Earth Clearance : 25 mm
9.0 Switchgear Terminal Adaptor Box
a) Material of enclosure :Aluminium
b) Thickness of enclosure mm :3mm
c) Thickness of enclosure cover/ Canopy : 2mm
10.0 Minimum clearance for bus bar and connection
a) Phase to phase :25mm
b) Phase to earth :25mm
Recommended