Transformer

 

Transformer Fittings And Accessories

 

Oil conservator with drain plug and oil filling hole

Oil level indicator

Drain valve with plug

Filter valve with plug

Air release vent

Explosion vent

Lifting lugs

Unidirectional rollers

Body earthing terminals

Outdoor type H. V. Bushing

L.T. cable box

Separate neutral earthing bushing

Offload tap changing switch

Thermometer pocket

Silica gel breather

Rating and diagram plate

Optional fittings provided with oil-cooled transformers include:

H.T. cable box

Dial thermometer

Buchholz relay

Bi-directional rollers

Jacking pads

Magnetic oil level gauge

Marshaling box

POWER TRANSMISSION TRANSFORMERS TYPES

 

Power Transformers

Rated power: from ≤ 100 MVA to > 400 MVA

Application areas: power generation, power transmission, industry, infrastructure

Features: Available in special low noise version, designed to be highly efficient with “green” transformer options

Reactors

Rated power: from ≤ 10 MVA to > 400 MVA

Application area: power transmission

Features: Available in special low noise version, designed to be highly efficient with “green” transformer options

Transformers for Industrial Applications

Rated power: from ≤ 10 MVA to > 400 MVA

Application area: industry

Phase Shifting Transformers

Rated power: from ≤ 10 MVA to > 400 MVA

Application area: power transmission, industry

Features: Available in special low noise version, designed to be highly efficient with “green” transformer options

HVDC Transformers

Rated power: from ≤ 10 MVA to > 400 MVA

Application area: power transmission

Features: Available in special low noise version, designed to be highly efficient with “green” transformer options

Distribution Transformers

Rated power: from 5 kVA bis ≤ 30 MVA

Application areas: distribution MV, industry, infrastructure

Features: Designed to be highly efficient with a “green” transformer option

Cast-Resin Transformers

Fluid-Immersed Distribution Transformers

Voltage regulator

Traction Transformers

Rated power: ≤ 10 MVA

Application area: mobility

Industrial plugs and socket

 Range of industrial plugs and sockets into four groups:

Easy & Safe are high-quality products for basic applications.

Tough & Safe are products for demanding applications and environments.

Critical & Safe are sockets with additional safety functions.

Fast & Safe are industrial plugs, connectors, inlets, and socket-outlets with screwless terminal connectors

Standard Electrical Equipment Makes

 

Sr. No.	Item	IS No.	Makes
1	Transformer	IS: 2026/1977	Crompton Greaves, NGEF, Kirloskar, BHEL, Andrewyule, Bharat Bijlee, Alsthom, ABB, Voltamp, Siemens, GEC, Voltas, TELK
2	11 kV/HT Vacuum Circuit Breaker, SF-6/11kV gas-filled Circuit Breaker	IS: 3427 for VCB	GEC, Siemens, Andrew yule, Crompton Greave, Alsthom(Areva), Jyoti, ABB, BHEL, Alind, L&T,  Schneider, Biecco Lawrie.
3	ACB(11kV)	IS: 13118/1991	Siemens, L&T, Crompton Greave, Schneider, Jyoti, GEC, MEI, ABB, Merlin Gerin, Moeller, Biecco Lawrie.
		IS: 13947/1993
4	PSS/CSS with HT/LT switchgear, transformer, and connected accessories	IS:11171/85 for dry-type transformer	ABB, Siemens, L&T, Crompton Greave, BHEL, GEC, Kirloskar, Alsthom(Areva), Schneider
5	MCCBs, MCBs, ELCBS, RCCBs, DB, ICTPN, TP, HRC fuse, Changing over switch, Switch Fuse Unit	IS: 8828/96 for MCB	L&T, Crompton Greave, Siemens, Legrand, Jyoti, GEC, Andrew yule, BCH, Schneider, ABB, Moeller, Merlin Gerin
		IS: 13947(Part-1&5/Sec1)/93for MCCB
		IS: 12640(Part-1)/2000 for RCCB
		IS: 13703(Part-2/Sec1)/93 for HRC fuse
		IS: 13947(Part-3)/93 for SFU
6	XLPE Cable 11/33kV grade	IS:7098(Part-2)/1985	Asian, NICCO, Universal, CCI, Torrent, Fort Gloster, INCAB, Industrial Cable, Polycab
7	PVC/XLPE Power Cables up to 1.1kV grade	IS: 694/1990 for PVC cable	CCI, Universal Cable,  Polycab, NICCO, Torrent, Asian, Fort Gloster, Finolex, Incab, Industrial Cable
		IS: 1554(Part1)/1988 for heavy-duty PVC cable
		IS:7098(Part-1)/1988 for XLPE cable
8	Instrument Voltmeter, Ammeter, PF meter	IS:1248 for Analog	Automatic Electric, Meco, Industrial Meter, Motwani, Toshniwal, L&T, Siemens, Rishab, IMP, Shanti, Moeller(HPL).
9	11kV Cable End Termination & Jointing kits	IS: 13573/92	Raychem, M-Seal, Safe system, Xicon brand of CCI, Hari consolidated(Cable seal brand), Densons(Yamuna)
10	Relays	IS: 3231/65	Siemens, L&T, Alsthom, EA SUN REY Roll, ABB, BHEL, Jyoti, Alind, GE, BCH, Minilec, Enercon
11	Luminaries, MH, HPSV, T-5 fittings, CFL & related accessories	IS: 9974(Part-1)/83 for HPSV	Phillips, Crompton, Bajaj, GE, Osram, Wipro.
		IS:10322(Part-5), 10322(Part2&3)/84 for Luminaries
		IS:15111 for CFL
12	PVC insulated Elect. Wires Sheathed/ unsheathed, PVC flexible LT cable, multicore, single-core, Flat cable for submersible pumps	IS: 694/1990 for PVC cable	Finolex, Asian,  Fort Gloster, CCI, NICCO, Universal,  In-cab, Torrent, Uniflex, RPG, Polycab, ICL, Unistar
13	Current Transformer	IS: 2705(Part3)/92	Automatic Electric, CGL, C&S, MECO, KAPPA, Siemens, L&T, Schneider
14	On line UPS, Servo Stabilizer, Inverter, CVT	IS:13314/92 for Inverter	AEI, BHEL, Hind Rectifier, L&T, NGEF, Siemens, Hi-rel, Autometer,  Enertech, Pyramid, APC, Dubas, Luminous, Microtech, TATA Libert
		IS:11260/85 for voltage Stabilizer
15	Rotary Switches. Selector Switches	Relevant IS	Kaycee, L&T, Salzer, GE, ABB, C&S, Siemens, HPL, Moeller
16	Exhaust fan/Air Circulator/ Bracket & Pedestal fans/Ceiling fan	IS: 374/79 for ceiling fan	Crompton, Khaitan, GEC, Usha, Philips, Bajaj, Polar, Orient, Almonard.
		IS: 2312/63 for Exhaust fan
		IS:875(Part3), BSTN-10025/1993, CPE III TRT/1996 of ILE UK.
		Octagonal Pole
		S355JO.
		Galvanization
		IS: 2629
		BSEN ISO-1461
18	Electronic Energy Meter	IS:13779/1999	L&T, IMP, HPL, Secure, ABB, Enercon,
		IEC:62053-21
19	Central Air Conditioning Plants & Package type plant	IS:8148 for the package type.	Voltas, Blue Star, Sidwell, Fedder Lloyd, Videocon, Amtrex, Carrier, Frick, Shriram, Hitachi, O General, Mitsubishi
		IS:1391 for Room Air Conditioners.
20	Capacitors- PF correction for Electrical General Services	IS:13340/93	ABB, BHEL, Indian Capacitors, Khatau Junker, Shreem, Unistar, WS Insulators, L&T, Hind Rectifier, Voltas, Siemens, Schneider, Indian Condenser, EPCOS
		IS:13341/92
21	DG Sets- Portable	IS: 13364(Part-1)/92 for Alternator	Birla Yamaha, CGL, Shriram Honda
		IS:1001/91 for Diesel Engine
22	DG Engine	IS:13364	Cummins, Kirloskar, Caterpillar, Ashok Leyland, Penta-Volvo
23	Alternator for DG set	IS:4722/2001	KEC, CGL, Stamford, Leroy-Somer, Kirloskar-Green
		IS:4728/1975
24	Induction Motor	IS:235/96	Bharat Bijlee, BHEL, CGL, GE, Jyoti, Kirloskar, Siemens, ABB, NGEF, Alsthom
		IS:12615/2004
25	LT Switchgear & control gears- Contactors & motor starters, Energy-Efficient Soft Starter panel/ Earthing Switch, Single phase preventer	IS:13947(Part1)/1993	ABB, CGL, Jyoti, L&T, MEI,  NGEF,  Siemens, Telemecanique & control (India) (TC), Legrand(MDS), BCH, Standard, GEC, BHEL, Minilec, Enercon, Andrewyule, C&S, N.N. Planner, Power Boss, Schneider.
		IS:13947(Part4)/1993
26	Pumps- Submersible	IS: 8034/2002 for submersible pump sets IS: 9283/1995 for motors of submersible pump sets	Calama, CGL, Jyoti, Kirloskar, KSB, TEXMO, SABAR
		IS: 14220/1994 for open well submersible pump sets
27	Timers- electronic solid-state	Relevant IS	ABB, BHEL, GE, Jyoti, L&T, BCH, Siemens, Minilec, Legrand
28	Water Coolers	IS: 1475/2001	Blue Star, Fedders, Kelvinator, Shriram, Sidwell, Voltas
29	Electrical accessories (Piano switch, Plugs & sockets, ceiling rose, Angle holder, holders,)	IS: 3854/88 for switches	SSK(Topline),  Anchor(Penta-ornet), Precision(Prime), Vinay(Clair-30), CONA(Nice-Indian), Leader, Legrand, ABB
		IS: 1293/88 for plugs& sockets
		IS: 371/79 for ceiling rose
		IS: 1258/79 for lamp holder bakelite
30	Bell Buzzer	IS:2268/1988 or latest	CONA, MAX, Anchor, Leader, SSK
31	Electronic fan regulator	IS:11037/1984	Anchor, Usha, ERIK, Rider
32	Solar cell/Module system	Relevant IS	TATA BP, BEL, BHEL, REIL, MOSER BEAR, CEL, Sharp Business Systems (India) Ltd.
33	Solar Lighting system	Relevant IS	DGS&D approved vendors on RC
34	GI/MS Pipe	IS: 1239(Part-1)/90	TATA, Jindal, TT Swastik, Prakash Surya
35	Geysers	IS:2082/93	Bajaj, Usha, Crompton, Spherehot, Recold, Venus.
36	Lifts & Escalators	IS:14665/2000	OTIS, Thysson Krup, Shindler, KONE, Mitsubhisi.
37	LEDs	Relevant IS	BHEL, Indo Asian Fusegear Ltd., Switch control (India), Siemens, GE, ABB, L&T, Moeller.
38	Solar Water Heaters	Relevant IS	As per MNES approved sources.
39	Solar Distilled Water Plants	Relevant IS	Makes can be approved on the recommendation of divisions.
41	Air Cooling Plants	Relevant IS for its concern equipment	Voltas, Blue Star, Carrier
42	Battery Charger for other than battery room for Train Lighting	IS:2026	Hind Rectifier, Usha Rectifier, Suresh Electrical, Pyramid, Automatic Electric, Delta Elect., Trinity Elect., Universal Ind. Products, Venus Engg., RS Power.
		IS:3895
43	Battery Charger for the battery room	As per RDSO specification having a re-generation facility	Amar Raja, Exide, RS Power
44	PVC Conduit Pipe & Casing capping for electrical wiring	IS:9537/93	Precision, A.K.G., Polycab, Finolex, Prestoplast
45	Aluminum Ladders	IS:4571/1977	Sumer, Beatfire
46	LT Panels	As per Relevant IEC	From CPRI tested firms.
47	Air Curtain	Relevant IS	Aircon, ALMONARD, Technocrate, Thermadyne, Mitzwak
48	Lighting Arrestor	IS:5621/1980 with latest amendment/ revision (specification for hollow insulators for use in electrical equipment)	(a) Jayshree Make – JSI (b) WSI (c) Shesashayee (d) BHEL (e) Luster Ceramics (f) Shakti make (g) Oblum make. Any other make approved by the PGVCL/GUVNL. Creepage Distance: 11KV – 320 mm. 22KV – 600 mm.
49	Power transformer		BHEL, Bharat Bijlee, EMCO, Kanohar
50	66KV Circuit Breaker		ABB, Siemens, AREVA
51	66KV Isolator		ABB, AREVA.
52	66KV Current Transformer		ABB, CGL, BHEL, TELK
53	66KV CVT		ABB, TELK, CGL, BHEL
54	66KV LA		ABB, CGL
55	Control and Relay Panel		ABB, AREVA, Siemens
56	1.1KV Grade control and power Cable		Universal, KEI, GEMSCAB, Polycab, Paramount, CCI, Torrent, Krishna, HVPL
57	Batteries		Exide, Amco, Amaraja, HBL nife
58	Battery Charger		Chhabi, HBL, Caldyne, Masstech, DUBAS, Statcon
59	Station Transformer Transformer		CGL, Kotson, Voltamp, Kanohar, EMCO, AREVA,
60	Fire Protection system		Vijay, Unitech, Technofab, Mather & Platt, Steelage.
61	11KV switchgear		ABB, AREVA, Siemens

Sub Station Short Circuit Current Capacity

 

Sub Station Capacity & Short Circuit Current Capacity:

As per GERC
Voltage	Sub Station Capacity	Short Circuit Current
400 KV	Up to 1000 MVA	40 KA  (1 to 3 Sec)
220 KV	Up to 320 MVA	40 KA  (1 to 3 Sec)
132 KV	Up to 150 MVA	32 KA  (1 to 3 Sec)
66 KV	Up to 80 MVA	25 KA  (1 to 3 Sec)
33 KV	1.5 MVA to 5 MVA	35 KA (Urban) (1 to 3 Sec)
11 KV	150 KVA to 1.5 MVA	25 KA (Rural) (1 to 3 Sec)
415 V	6  KVA to 150 KVA	10 KA  (1 to 3 Sec)
220 V	Up to 6 KVA	6 KA  (1 to 3 Sec)

 Sub Station Capacity & Short Circuit Current Capacity:

As per Central Electricity Authority
Voltage	Sub Station Capacity	Short Circuit Current
765 KV	4500 MVA	31.5 KA for 1 Sec
400 KV	1500 MVA	31.5 KA for 1 Sec
220 KV	500 MVA	40 KA for 1 Sec
110/132 KV	150 MVA	40 KA or 50 KA for 1 Sec
66 KV	75 MVA	40 KA or 50 KA for 1 Sec

 

Fire Extinguishers

 

Class of Fire
CLASS	Type of Fire	Type of Fire Extinguisher
Class A	Fires involving Paper, Wood, Textile, Packing materials and the like.	Water, foam, ABC dry power and halocarbons.
Class B	Fires involving Oil, Petrol, Solvent, Grease, Paints, Celluloid and the like.	Foam, dry powder, clean agent and carbon dioxide extinguishers
Class C	Fires involving Electrical Hazards, Motor Vehicle Gaseous substance under pressure.	Dry powder, clean agent and carbon dioxide extinguishers
Class D	Fires involving Chemicals, Metal and active like Magnesium ,titanium	Extinguishers with special dry powder for metal tires

Area covered by Fire Extinguisher (NBC)
Type of Fire Extinguishers	Coverage (Floor) Area
Water/ Sand Bucket	100 sq.mt.
Sprinklers	6 sq.mt.
Extinguishers (9 Liter)	600 sq.mt.
Heat Detectors	16 sq.mt.
Hydrant Riser (Outlet 100 mm dia with landing valve and First aid hose reel)	930 sq.mt
Smoke Detectors	50 sq.mt.

Different Types of Fire Extinguishers for Different Classes of Fires ( IS 2190 )
Type of Extinguisher	IS	Type of Fires
		Class A	Class B	Class C	Class D
water type (gas cartridge)	IS 940 , IS 13385	S	NS	NS	NS
water type (stored pressure)	IS 6234	S	NS	NS	NS
mechanical foam type (gas cartridge)	IS 10204, IS 13386	S	S	NS	NS
mechanical foam type (stored pressure)	IS 14951,IS 15397	S	S	NS	NS
dry powder type (stored pressure)	IS 13849	S	S	S	NS
dry powder type (gas cartridge)	IS 2171 , IS 10658	S	S	S	NS
dry powder type for metal fires	IS 11833	NS	NS	NS	S
carbon dioxide type	IS 2878, IS 8149	NS	S	S	NS
clean agent gas type	IS 15683	S	S	S	NS
halon 1211 type	IS 4862 , IS 11108	S	S	S	NS

 

Area covered by Fire Extinguisher (NBC)
Type of Fire Extinguishers	Coverage (Floor) Area
Water/ Sand Bucket	100 sq.mt.
Sprinklers	6 sq.mt.
Extinguishers (9 Liter)	600 sq.mt.
Heat Detectors	16 sq.mt.
Hydrant Riser (Outlet 100 mm dia with landing valve and First aid hose reel)	930 sq.mt
Smoke Detectors	50 sq.mt.

Different Types of Fire Extinguishers for Different Classes of Fires ( IS 2190 )
Type of Extinguisher	IS	Type of Fires
		Class A	Class B	Class C	Class D
water type (gas cartridge)	IS 940 , IS 13385	S	NS	NS	NS
water type (stored pressure)	IS 6234	S	NS	NS	NS
mechanical foam type (gas cartridge)	IS 10204, IS 13386	S	S	NS	NS
mechanical foam type (stored pressure)	IS 14951,IS 15397	S	S	NS	NS
dry powder type (stored pressure)	IS 13849	S	S	S	NS
dry powder type (gas cartridge)	IS 2171 , IS 10658	S	S	S	NS
dry powder type for metal fires	IS 11833	NS	NS	NS	S
carbon dioxide type	IS 2878, IS 8149	NS	S	S	NS
clean agent gas type	IS 15683	S	S	S	NS
halon 1211 type	IS 4862 , IS 11108	S	S	S	NS

 

Area covered by Fire Extinguisher (NBC)
Type of Fire Extinguishers	Coverage (Floor) Area
Water/ Sand Bucket	100 sq.mt.
Sprinklers	6 sq.mt.
Extinguishers (9 Liter)	600 sq.mt.
Heat Detectors	16 sq.mt.
Hydrant Riser (Outlet 100 mm dia with landing valve and First aid hose reel)	930 sq.mt
Smoke Detectors	50 sq.mt.

Different Types of Fire Extinguishers for Different Classes of Fires ( IS 2190 )
Type of Extinguisher	IS	Type of Fires
		Class A	Class B	Class C	Class D
water type (gas cartridge)	IS 940 , IS 13385	S	NS	NS	NS
water type (stored pressure)	IS 6234	S	NS	NS	NS
mechanical foam type (gas cartridge)	IS 10204, IS 13386	S	S	NS	NS
mechanical foam type (stored pressure)	IS 14951,IS 15397	S	S	NS	NS
dry powder type (stored pressure)	IS 13849	S	S	S	NS
dry powder type (gas cartridge)	IS 2171 , IS 10658	S	S	S	NS
dry powder type for metal fires	IS 11833	NS	NS	NS	S
carbon dioxide type	IS 2878, IS 8149	NS	S	S	NS
clean agent gas type	IS 15683	S	S	S	NS
halon 1211 type	IS 4862 , IS 11108	S	S	S	NS