P-14/2021-22/DTR/RC/PC-III

Supply of Bushing in replacement of broken one as per IS:3347 of 1979 & IS: 2099 of 1986 and their latest amendment

33 KV 250 Amps

12 KV 250 Amps

12 KV 630 Amps

1.1 KV 250 Amps

1.1 KV 630 Amps

1.1 KV 1000 Amps

Supply of Studs for Busing complete with Nuts, Washers and Cap Fittings according to requirement conforming to IS:3347 of 1979 & IS: 2099 of 1986 and their latest amendment

Brass Stud with Brass Fittings complete with Nuts, Washers & Cap Fittings- 12 KV 250 Amps

Brass Stud with Brass Fittings complete with Nuts, Washers & Cap Fittings- 1.1 KV 250 Amps

Brass Stud with Brass Fittings complete with Nuts, Washers & Cap Fittings- 1.1 KV 630 Amps

Brass Stud with Brass Fittings complete with Nuts, Washers & Cap Fittings- 1.1 KV 1000 Amps

Aluminium Stud with Aluminium Fittings complete with Nuts, Washers etc.- 12 KV 250 Amps

Aluminium Stud with Aluminium Fittings complete with Nuts, Washers etc.- 1.1 KV 250 Amps

Copper Stud with Copper Fittings complete with Nuts etc.- 12 KV 250 Amps

Copper Stud with Copper Fittings complete with Nuts etc.- 1.1 KV 250 Amps

Copper Stud with Copper Fittings complete with Nuts etc.- 1.1 KV 630 Amps

Copper Stud with Copper Fittings complete with Nuts etc.- 1.1 KV 1000 Amps 30 mm Stud

Copper Stud with Copper Fittings complete with Nuts etc.- 1.1 KV 1000 Amps 25 mm Stud

Brass Stud with Brass Fittings complete with Nuts, etc. 34 KV/250 Amps

Copper Stud with Brass Fittings complete with Nuts etc. 34 KV/250 Amps

Oil Seal of Bushing made of Neoprene rubber

1.1 KV 250 Amps

1.1 KV 630 Amps

1.1 KV 1000 Amps

12 KV 250 Amps

33 KV 250 Amps

Supply of C.I./M.S. Clamp for Fixing of HT Bushing

33 KV Busing

11 KV Busing

Supply of Arcing Horn assembly

33 KV Single Gap Clamp

11 KV Single Gap Clamp

Supply of Insulating materials for assembly

Phase separator, Spacers, axial ducts, cylinder’s core yoke insulation- Raman make sigma con. 3.1 pre-compressed pressphan paper board

Phase separator, Spacers, axial ducts, cylinder’s core yoke insulation- ”K” Grade Scnapatty White lay pre-compressed Press Board- with thickness of 0.75 mm

Phase separator, Spacers, axial ducts, cylinder’s core yoke insulation- ”K” Grade Scnapatty White lay pre-compressed Press Board- with thickness of 1.5 to 3.2 mm

Phase separator, Spacers, axial ducts, cylinder’s core yoke insulation- ”K” Grade Scnapatty White lay pre-compressed Press Board- with thickness of 5 mm

Inter-leaved insulating paper between the layers of the winding- Epoxy dotted Kraft Paper- with thickness of 3 Mil

Inter-leaved insulating paper between the layers of the winding- Epoxy dotted Kraft Paper-with thickness of 4 Mil

Inter-leaved insulating paper between the layers of the winding- Epoxy dotted Kraft Paper-with thickness of 5 Mil

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 10 KVA to 25 KVA 11/0.433 KV 3 Ph. Each Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 50/63 KVA Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 100/160 KVA Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 250 KVA Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 300/315 KVA Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 500 KVA Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 630 KVA Transformers

Other (viz Ampere tape, Cotton Tape, Bakelite Tube and Sleeve Rings)- For 100 KVA 33/0.433 KV Transformers

Supply of Neoprene Rubberized Gasket Sheet

3 mm Thickness

5 mm Thickness

6 mm Thickness

Rotary Switch with Handle

250 KVA 5 Position

250 KVA 7 Position

315 KVA 5 Position

315 KVA 7 Position

500 KVA 5 Position

500 KVA 7 Position

630 KVA 5 Position

630 KVA 7 Position

Supply of finished new E.C. Grade Copper Conductor with insulation (Loss: Max. 5% allowed)

Supply of finished new E.C. Grade Copper Strip DPC (50 Sq. mm) with insulation (Loss: Max. 5% allowed)

Supply of finished new Aluminium Conductor Coils/Wires with insulation (Loss: Max. 5% allowed)

S.E. up to 25 KVA

S.E. above 25 KVA

TPC/DPC

Supply of finished new Aluminium Strip DPC/TPC (Loss: Max. 5% allowed)

Supply of M.S. Bolts & Nuts (assorted size) according to requirement (size to be mentioned as per BS 916 BSW)- For all ratings

Supply of Hot-Trip galvanized Nut, Bolts & Washers - Assorted size- For all ratings

Supply of Silica gel Breather with container and first filling

10-25 KVA 11/6.6/6/0.4 KV

50/63 KVA 11/6.6/6/0.4 KV

100/160 KVA 11/6.6/6/0.4 KV

250 KVA 11/6.6/6/0.4 KV

315 KVA 11/6.6/6/0.4 KV

500/630 KVA 11/6.6/6/0.4 KV

Supply of New Cooling round pipe including Welding & Fittings

Supply of Drain Valve / Filter Valve with plug in replacement of old one

BASE PLATE WITH FIXING/ NAME PLATE WITH FIXING/ DTR Indexing

BASE PLATE WITH FIXING (The Base Plate is to be made of M.S. Material 2.5 mm thick measuring 6”x4” to be fixed with the body of the Transformer Tank suitably by continues welding on tank body)

NAME PLATE WITH FIXING: (The Name Plate is to be made of anodized Aluminum 0.6 mm thick measuring 4”x2”. The Name Plate is to be fixed on the base plate by machine screws and welded. The Name Plate should indicate the following)- Name of the Repairer’s Firm/ Name of the Store where from received/ Make/Serial No./ Voltage ratio/ KVA ratings/ % Impedance at 75°C/ Load Loss at 100% Loading/ No load Loss at rated voltage & freq./ Total Loss at 50% loading (If applicable)/ Date of test (The above particulars are to be letter punched on the Name Plate. The general lettering should be attached on Aluminium Plate and anodized)

DTR Indexing (As per instruction of ordering officer)- As per circular by The Director (Dist) Communicated vide memo no. Director (Dist)/ B-6/2(1-52) & (53-78), dated-15.01.09

Joint preliminary/final Survey and preparation of report together with estimate of repair work involved (to be submitted in quadruplicate)

10 KVA/16 KVA/25 KVA/, 11/6.6/6/0.433 KV

50 KVA/63 KVA, 11/6.6/6/0.433 KV

100/160 KVA, 11/6.6/6/0.433 KV

250 KVA, 11/6.6/6/0.433 KV

315 KVA, 11/6.6/6/0.433 KV

500 KVA/630 KVA, 11/6.6/6/0.433 KV

50 KVA, 33/0.433 KV

100 KVA, 33/0.433 KV

250 KVA, 33/0.433 KV

Re-assembly of Transformer found condemned after inspection

10 KVA/16 KVA/25 KVA/, 11/6.6/6/0.433 KV

50 KVA/63 KVA, 11/6.6/6/0.433 KV

100/160 KVA, 11/6.6/6/0.433 KV

250 KVA, 11/6.6/6/0.433 KV

315 KVA, 11/6.6/6/0.433 KV

500 KVA/630 KVA, 11/6.6/6/0.433 KV

50 KVA, 33/0.433 KV

100 KVA, 33/0.433 KV

250 KVA, 33/0.433 KV

Labour Charges for preparation and fittings of new Copper Coil in replacement of damaged ones by providing inter-layer insulation (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

11/6.6/6 KV Coils- HV Coils Insulation TPC

11/6.6/6 KV Coils- HV Coils Insulation DPC

11/6.6/6 KV Coils- HV Coils Insulation SE

33 KV Coils- HV Coils Insulation TPC

33 KV Coils- HV Coils Insulation DPC

33 KV Coils- HV Coils Insulation SE

400 Volts Coils- LV Coil Insulation DPC (Round)

400 Volts Coils- LV Coil Insulation DPC (Rectangular)

Labour Charges for rewinding of existing Copper Conductor

Labour Charges for rewinding with re-insulation of existing Copper Conductor with replacement of inter-layer insulation (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)- 33 KV Coil: TPC/DPC

Labour Charges for rewinding with re-insulation of existing Copper Conductor with replacement of inter-layer insulation (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)- 11 KV 6.6 KV Coil: DPC/TPC

Labour Charges for rewinding without re-insulation of existing Copper Conductor- 33 KV Coil: TPC/DPC

Labour Charges for rewinding without re-insulation of existing Copper Conductor- 11 KV 6.6 KV Coil: DPC/TPC

Labour Charges for rewinding with re-insulation with inter-layer insulation of old LV (400/415/433 Volts) Copper Coil with ducting (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

LV Coils Insulation DPC (Round)

LV Coils Insulation DPC (Rectangular)

Labour Charges for preparation and fitting of finished new Aluminium Coil by providing new inter-layer insulation

11 KV 6.6/6 KV Coils- Insulation DPC (Round)

11 KV 6.6/6 KV Coils- Insulation SE (Round)

400 Volts Coils (with ducting)- Insulation DPC (Round)

400 Volts Coils (with ducting)- Insulation DPC (Rectangular)

Labour Charges for rewinding with replacement of inter-layer insulation of old Aluminium Wire : 11/6.6 KV Coils (DPC/TPC) (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

Labour Charges for rewinding with re-insulation of existing 400 Volts Aluminium Coils by providing new inter-layer insulation with ducting (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

Re-Assembly and Boxing up of Core and Coil after through cleaning, drying and reconnection of Coils including testing charges (Double Voltage Double Frequency test included)

10/16/25 KVA, 11/6.6/6/0.433 KV

50 /63 KVA, 11/6.6/6/0.433 KV

100/160 KVA, 11/6.6/6/0.433 KV

250 KVA, 11/6.6/6/0.433 KV

315 KVA, 11/6.6/6/0.433 KV

500 /630 KVA, 11/6.6/6/0.433 KV

50 KVA, 33/0.433 KV

100 KVA, 33/0.433 KV

250 KVA, 33/0.433 KV

External Painting of Transformers

10/16/25 KVA, 11/6.6/6/0.433 KV

50 /63 KVA, 11/6.6/6/0.433 KV

100/160 KVA, 11/6.6/6/0.433 KV

250 KVA, 11/6.6/6/0.433 KV

315 KVA, 11/6.6/6/0.433 KV

500 /630 KVA, 11/6.6/6/0.433 KV

50 KVA, 33/0.433 KV

100 KVA, 33/0.433 KV

250 KVA, 33/0.433 KV

Transformer Tank repairing charges for Electrical Welding

Gas Cutting of lit of sealed type transformer

Filtration of Insulating Oil at suitable temperature in steam line type filter machine- New/reclaimed Oil (Process loss 2%)

Joint preliminary/final survey and preparation of report together with estimate of repair work involved (to be submitted in quadruplicate)

10 KVA/16 KVA/25 KVA, 11/6.6/6/0.433 KV

50 KVA/63 KVA, 11/6.6/6/0.433 KV

Re-assembly of Transformer found condemned after inspection

10 KVA/16 KVA/25 KVA, 11/6.6/6/0.433 KV

50 KVA/63 KVA, 11/6.6/6/0.433 KV

Labour Charges for preparation and fittings of new Copper Coil in replacement of damaged ones by providing inter-layer insulation (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

11/6.6/6 KV Coils- HV Coils Insulation SE

400 Volts Coils- LV Coil Insulation DPC (Round)

400 Volts Coils- LV Coil Insulation DPC (Rectangular)

Labour Charges for rewinding with re-insulation with inter-layer insulation of old LV (400/415/433 Volts) Copper Coil with ducting (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

LV Coils Insulation DPC (Round)

LV Coils Insulation DPC (Rectangular)

Labour Charges for preparation and fitting of finished new Aluminium Coil by providing new inter-layer insulation

11 KV 6.6/6 KV Coils- Insulation SE (Round)

400 Volts Coils (with ducting)- Insulation DPC (Round)

400 Volts Coils (with ducting)- Insulation DPC (Rectangular)

Labour Charges for rewinding with re-insulation of existing 400 Volts KV Aluminium Coils by providing new inter-layer insulation with ducting (Inter layer insulation material is to be used as per recommendation of manufacturer of Insulating material)

Re-Assembly and Boxing up of Core and Coil after thorough cleaning, drying and reconnection of Coils including testing charges (Double Voltage Double Frequency test included)

10/16/25 KVA, 11/6.6/6/0.433 KV

50 /63 KVA, 11/6.6/6/0.433 KV

External Painting Transformers

10/16/25 KVA, 11/6.6/6/0.433 KV

50 /63 KVA, 11/6.6/6/0.433 KV

Transformer Tank repairing charges for Electrical Welding

Gas Cutting of lit of sealed type transformer

Filtration of Insulating Oil at suitable temperature in steam line type filter machine- New/reclaimed Oil (Process loss 2%)

Gouri Powertech

M/S UNITED BUILDERS

TAMRALIPTA ELECTRICALS

DREAM ELECTRICS

SREE LALJI

EASTERN ENGINEERS

M/S RAMKAMAL ELECTRICAL WORKS

CONCO ENGINEERS CO OPERATIVE SOCIETY LTD.

CONCO ENGINEERS CO-OPERATIVE SOCIETY LTD.

RASMIC

MRIGENDRA ELECTRICAL AND ELECTRONICS

SUN ELECTRICALS

M/S G S ELECTRO TECH

SUSANTA KUMAR BISWAS

SSA INDUSTRIES

M/s RNK ELECTRICALS

TRANS ELECTRICALS

A.P.INDUSTRIES

TRANS ELECTRICAL

UDYOG ENGINEERING WORKS

SAMBHUNATH ELECTRICALS INDUSTRIES

ASHA ELECTRIC WORKS

STARMAKE ENTERPRISE

SHREE LAKSHMI TRANSFORMER AND CONTRACTOR

ACAM CONSTRUCTION

M/S H.C TRADING CO.

Northern Electricals and Transformer Works

MELCONS ELECTRICALS

Nikhil Electrical

PAUL & CO

ELECTROTRANS ENGINEERING COMPANY

JBA Electricals

RELIABLE ELECTRO ENGINEERING

RELIABLE ELECTRO ENGINEERING

POWER & POWER

SHIVSAKTI ENGINEERING CORPORATION

NEW RTS INDUSTRIES

R.K. INDUSTRIES

ARUN ENTERPRISES

TKS Enterprise

ELECTRICAL INTERNATIONAL

MAHENDRA ENGINEERING CO

CALSON ELECTRICALS

AHK Corporation

M/S EQUIPMENT CONTROLLER

M/S. SUBRATA MONDAL

M/S. MAA DURGA ENTERPRISE

SREE KRISHNA ENTERPRISE

M C ELECTROS

MS SPDARS NATH ELECTRIC

Barua Trading Co.

SMG ELECTRICALS

POWER INTERNATIONAL

POWER CONTROL

RANJIT KUMAR BHOWMIK

Impelco Electric Company

Power Proof & Co.

HOSSEN ELECTRICALS

RAKSHIT ENTERPRISES

DAS CONSTRUCTION

JISHNU TECHNOCRACY

OHM ELECTRICAL

PRASANTA KUMAR PAL

MS NATIONAL ELECTRICAL

SUSILA INDUSTRIES

GOPAL ELECTRICAL COMPANY

SUJALA INDUSTRIES

SREE KRISHNA ELECTRICAL INDUSTRIES

SUNRISE INDUSTRIES

G.S.INDUSTRIES

GOURI CONSTRUCTION CO.

MODERN TRANSFORMER

Electropulse Industries

TRINAYANI ELECTRICAL

M/S LOKENATH ELECTRICALS

PIGMY ELECTRICALS

ELECTRICALS EMPIRE

BABA LOKENATH ELECTRICAL ENTERPRISE

M. B ELECTRICALS

RELIABLE ELECTRICAL COMPANY

SHRABANI ENTERPRISE

RAJA BHATTACHARJEE

KALYAN ELECTRICALS

MONDAL TRANSFORMER INDUSTRIES

PUSHPA INTERNATIONAL

SUROMA TRANSLINE VILLAGE INDUSTRIAL SOCIETY

Maa Tara Electrical Works and Sales Service

HOSSAIN ELECTRIC COMPANY PRIVATE LTD

M/S VISHNU TECHNOLOGY

NEW ELECTRICAL CORPORATION

SHRISTI ENGINEERING WORKS

TMS Udyog

NATARAJ ENTERPRISES

M. SAHA AND CO.

AKASH INDUSTRIES

POWER VOLT ELECTRIC

Siddhi Vinayak Traders

ELECTRICAL INTERNATIONAL

M/S DHIRENDRA NATH SARKAR

M/S DEBNATH ELECTRICALS

M/S. ELECTRO INDIA

WESTERN ENGINEERS

P. S. ELECTRICAL WORKS

Impelco Transformer Pvt. Ltd.

CITY ELECTRICAL WORKS

BHANUKA ENTERPRISES

M/S R N ENTERPRISE

MAHESH ELECTRICAL INDUSTRIES

Dipa Construction

GHOSH ENTERPRISE

UNIVERSAL ELECTRICAL ENGINEERING

Velocity Industries

TPS ELECTRO LINKS

M/S. BIDYUT ELECTRICALS

Power Control Nigam

New Dooars Industries

M M ELECTRICAL WORKS

BIJAY TRANSFORMER

D.S. ENTERPRISE

BARUA & CO.

TAPAS DUTTA

MBS ENTERPRISE

M/s. Sujata Electric

K.M.T INDUSTRIES

STP ELECTRO ENGINEERS

VOLTALLY

BHANUKA ELECTRICALS

MAA TARA ELECTRICALS

Lokenath Industries

OM SHAKTI TRANSFORMERS LIMITED

TMS Udyog Unit II

ElectroTrade

S G ELECTRICAL

Barua Trading Co.

MS NATIONAL ELECTRICAL

OHM ELECTRICAL

PRASANTA KUMAR PAL

BARUA & CO.

RELIABLE ELECTRO ENGINEERING

RELIABLE ELECTRO ENGINEERING

J J ELECTRIC

M M ELECTRICAL WORKS

BIJAY TRANSFORMER

Power Control Nigam

D.S. ENTERPRISE

ACAM CONSTRUCTION

DAS CONSTRUCTION

AHK Corporation

RANJIT KUMAR BHOWMIK

M/S VISHNU TECHNOLOGY

M/S. ELECTRO INDIA

S G ELECTRICAL

MRIGENDRA ELECTRICAL AND ELECTRONICS

SHRABANI ENTERPRISE

PAUL & CO

SUN ELECTRICALS

TAMRALIPTA ELECTRICALS