West Bengal Sdc

Technical BO

Works

ELECTRICAL WORKS ORG

Repairing of 150 KVA Oil type Transformer and Servicing of HT OCB Installed at the substation of SPLPIM Kalyan Nadia

Public Works Department

SPLPIM, Kalyani | Nadia, West Bengal

Amount: Refer DocsCloses: 21 Sept 2026Closed

Timeline

Published9 Sept 2026
Closed21 Sept 2026
Technical Evaluation29 Sept 2026
Award—

Bids

3 Bids23 Sept 2026

#	Company	Status
1	DECADON ENGINEERING Admitted-Fee/PreQual/Technical	Admitted-Fee/PreQual/Technical
2	HALDER ELECTRIC Admitted-Fee/PreQual/Technical	Admitted-Fee/PreQual/Technical
3	SUNLIGHT CONSTRUCTION Admitted-Fee/PreQual/Technical	Admitted-Fee/PreQual/Technical

Tender Value

Refer Docs

EMD Value

₹6,650

Closing Date

21 Sept 2026, 2:00 pmClosed

Tender Inviting Organisation

Name

Assistant Engineer, PWD, Ranaghat Electrical SD

Address

Office of the Assistant Engineer, PWD Ranaghat Electrical Sub-Division Silver Jubilee Road, Ranaghat, Nadia - 741201

Work Description

Repairing of 150 KVA Oil type Transformer and Servicing of HT OCB Installed at the substation of SPLPIM Kalyan Nadia

Tender Information

Tender ID

2026_WBPWD_5023262_1

Reference Number

WBPWD/AE/e-NIT/10/RH/26-27

Tender Type

Open Tender

Product Category

ELECTRICAL WORKS ORG

Form of Contract

Item Wise

Period of Work

10 days

Location

SPLPIM, Kalyani

Source Website

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Eligibility / Pre-Qualification

Please refer Tender documents.

Documents Required

5 documents required · 5 mandatory

Fee/PreQual/Technical

RequiredNIT (.pdf)

Required2911 (.pdf)

RequiredEMD (.pdf)

RequiredOther Technical Documents (.pdf)

Finance

RequiredBOQ (.xls)

Fee & Financial Details

EMD Fee Amount

₹6,650

Important Dates

Last Activity

23 Sept 2026

Published

9 Sept 2026

Bid Opening

23 Sept 2026

Download Starts

9 Sept 2026

Download Ends

21 Sept 2026

Submission Starts

14 Sept 2026

Bill of Quantities

Item RateBoQ_Ver3.0INR

BoQ1 (22 items)

Sl No	Description	Qty	Unit	Est. Rate	Est. Amount
1Attending the breakdown and charge for observation, testing the fault of the transformer, including jungle cutting from the road to the field where the outdoor transformer is installed. incl.
1.1	Dismantling the old, damaged 11/.0415 KV, 150 KVA transformer by opening the HT & LT side cables, earthing attachment etc.	1	Item	-	-
2	Drawing out the transformer oil from the existing burnout transformer and pouring it into an empty jar, clear dram.	82	Lit.	1	₹82
3Washing the cores and copper windings by hot transformer oil (two times) carefully and cleaning the cores by soft brush and soft cotton clothes after drying the cores & windings should be cleaned by Carbon Tetrachloride solution properly for de-moisturize and raise the I.R. value. incl.
3.1	Cleaning and washing the transformer tank firstly by using transformer oil and secondly by new hot transformer oil, draining out the transformer oil and drying the total surface by cleaning with a cotton cloth. The following work to be done -- (i) Repairing the leakage of the tank by proper welding. (ii) Painting with red Becktol Vernish inside the tank.	1	Job	2	₹2
4	Charges for lifting of HV & LV coils by maintaining the following process :- i) Dismantling the tap changing switch on the top of the frame work & marking the terminals. ii) Disconnecting the interconnections between the coils by applying the soldering iron. ii) Top frame work holding the core should be removed by unbolting the bolts & nuts, top lamination of the core should be removed part by part carefully. iv) Lifting the core part by part.	1	Job	2	₹2
5	Making new H.V. coils by super enemeled insulated coating copper wire as per specification in respect of inner & outer dia, thickness and same size of wire, number of turns, layers per coils etc. same as of others existing L.V. coils by winding machines after making DPC (4.210Kg/Coil).	5	Nos	4	₹20
6	Charges for making DPC (Double paper cover) for each H.V. coils (all old & new coils) winding wire.	19	Nos	5	₹95
7	Charges for making DPC (Double paper cover) for each L.V. coils winding wire.	3	Nos	6	₹18
8Charges for after making winding both H.V. & L.V. coils should be placed in varnish impregnating plant for impreguation of coils with varnish including supply of required material for this work. Incl. a) For H.V. Coils

Stage Documents

Stage Summary Snapshot

stage.html

html • 0.02 MB

Technical Bid Opening

tech_bid_open.pdf

PDF

Documents

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Tender Page Snapshot

details.html

html • 0.03 MB

NIT Documents

Tendernotice_1.pdf

PDF • 0.48 MB

Work Item Documents

2911.pdf

Tender Documents • 0.50 MB

BOQ_5106644.xls

BOQ • 0.29 MB

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Company

DECADON ENGINEERING

Admitted-Fee/PreQual/Technical

HALDER ELECTRIC

Admitted-Fee/PreQual/Technical

SUNLIGHT CONSTRUCTION

Admitted-Fee/PreQual/Technical

Sl No	Description	Qty	Unit	Est. Rate	Est. Amount
1Attending the breakdown and charge for observation, testing the fault of the transformer, including jungle cutting from the road to the field where the outdoor transformer is installed. incl.
1.1	Dismantling the old, damaged 11/.0415 KV, 150 KVA transformer by opening the HT & LT side cables, earthing attachment etc.	1	Item	-	-
2	Drawing out the transformer oil from the existing burnout transformer and pouring it into an empty jar, clear dram.	82	Lit.	1	₹82
3Washing the cores and copper windings by hot transformer oil (two times) carefully and cleaning the cores by soft brush and soft cotton clothes after drying the cores & windings should be cleaned by Carbon Tetrachloride solution properly for de-moisturize and raise the I.R. value. incl.
3.1	Cleaning and washing the transformer tank firstly by using transformer oil and secondly by new hot transformer oil, draining out the transformer oil and drying the total surface by cleaning with a cotton cloth. The following work to be done -- (i) Repairing the leakage of the tank by proper welding. (ii) Painting with red Becktol Vernish inside the tank.	1	Job	2	₹2
4	Charges for lifting of HV & LV coils by maintaining the following process :- i) Dismantling the tap changing switch on the top of the frame work & marking the terminals. ii) Disconnecting the interconnections between the coils by applying the soldering iron. ii) Top frame work holding the core should be removed by unbolting the bolts & nuts, top lamination of the core should be removed part by part carefully. iv) Lifting the core part by part.	1	Job	2	₹2
5	Making new H.V. coils by super enemeled insulated coating copper wire as per specification in respect of inner & outer dia, thickness and same size of wire, number of turns, layers per coils etc. same as of others existing L.V. coils by winding machines after making DPC (4.210Kg/Coil).	5	Nos	4	₹20
6	Charges for making DPC (Double paper cover) for each H.V. coils (all old & new coils) winding wire.	19	Nos	5	₹95
7	Charges for making DPC (Double paper cover) for each L.V. coils winding wire.	3	Nos	6	₹18
8Charges for after making winding both H.V. & L.V. coils should be placed in varnish impregnating plant for impreguation of coils with varnish including supply of required material for this work. Incl. a) For H.V. Coils

Sl No

Description

Qty

Unit

Est. Rate

Est. Amount

1Attending the breakdown and charge for observation, testing the fault of the transformer, including jungle cutting from the road to the field where the outdoor transformer is installed. incl.

1.1

Dismantling the old, damaged 11/.0415 KV, 150 KVA transformer by opening the HT & LT side cables, earthing attachment etc.

Item

Drawing out the transformer oil from the existing burnout transformer and pouring it into an empty jar, clear dram.

Lit.

₹82

3Washing the cores and copper windings by hot transformer oil (two times) carefully and cleaning the cores by soft brush and soft cotton clothes after drying the cores & windings should be cleaned by Carbon Tetrachloride solution properly for de-moisturize and raise the I.R. value. incl.

3.1

Cleaning and washing the transformer tank firstly by using transformer oil and secondly by new hot transformer oil, draining out the transformer oil and drying the total surface by cleaning with a cotton cloth. The following work to be done -- (i) Repairing the leakage of the tank by proper welding. (ii) Painting with red Becktol Vernish inside the tank.

Job

₹2

Charges for lifting of HV & LV coils by maintaining the following process :- i) Dismantling the tap changing switch on the top of the frame work & marking the terminals. ii) Disconnecting the interconnections between the coils by applying the soldering iron. ii) Top frame work holding the core should be removed by unbolting the bolts & nuts, top lamination of the core should be removed part by part carefully. iv) Lifting the core part by part.

Job

₹2

Making new H.V. coils by super enemeled insulated coating copper wire as per specification in respect of inner & outer dia, thickness and same size of wire, number of turns, layers per coils etc. same as of others existing L.V. coils by winding machines after making DPC (4.210Kg/Coil).

Nos

₹20

Charges for making DPC (Double paper cover) for each H.V. coils (all old & new coils) winding wire.

Nos

₹95

Charges for making DPC (Double paper cover) for each L.V. coils winding wire.

Nos

₹18

8Charges for after making winding both H.V. & L.V. coils should be placed in varnish impregnating plant for impreguation of coils with varnish including supply of required material for this work. Incl. a) For H.V. Coils