Tender For Complete Repairing/Rewinding Of 315Kva, 6.6Kv/550V Mine Line Make Flp Transwitch Unit No. Ts-009 Sl. No. 0836 Of Khottadih Colliery And Complete Repairing Of 315 Kva, 3.3 Kv/550V Tsu Of Khottadih Colliery.
Tender Value
9.36 Lakhs
Estimated cost
Bid Submission
20 Aug 2026
4 days left
EMD
11800
Bank guarantee accepted
Document Fee
Ref. Documents
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Paschim Bardhaman → West Bengal
EMD Exemption
Not Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Complete Repairing/Rewinding Of 315Kva, 6.6Kv/550V Mine Line Make Flp Transwitch Unit No. Ts-009 Sl. No. 0836 Of Khottadih Colliery And Complete Repairing Of 315 Kva, 3.3 Kv/550V Tsu Of Khottadih Colliery.
BOQ
| Sl. No. | Item Description |
| 1 | Complete Repairing/Rewinding of 315KVA, 6.6kV/550V Mine Line make FLP Transwitch Unit no. TS-009 Sl. No. 0836 of Khottadih Colliery . (Inclusive of EPF/CMPF) |
| 2 | Dismantling the coil from core for weighment |
| 3 | Gaskets, nuts, bolts and other hardware items. |
| 4 | Silver Brazing Electrode, DA & oxygen dove tail. |
| 5 | Fitting of reformed coils in the limbs with requiredinsulation and necessary coil connection. |
| 6 | Assembling of Tran switch. |
| 7 | Drying of transformer at recommended temperatureand testing. |
| 8 | Cleaning & de-carbonization of old primary Conductor. |
| 9 | Cleaning and de-carbonization of old secondary. |
| 10 | Providing EL grade new conductor for Primary side. |
| 11 | Providing EL grade new conductor for Secondary side. |
| 12 | Re-insulation of old primary conductor withDGC/Nomex insulation with Class F-materials. |
| 13 | Re-insulation of old secondary conductor withDGC/Nomex insulation with class F materials. |
| 14 | Cost towards double glass covering & varnishing withheat treatment. |
| 15 | Cost of Pulling out the outlet valve including supply &fitting the outlet valve as per existing specification. |
| 16 | Reformation of secondary coils as per original shape with class-F board glass fiber molded cylinder of heavysec, plan spacers- |
| 17 | Thinner and varnish including baking drying out atrecommended temperature |
| 18 | Repairing of Tape changer Switch. |
| 19 | Testing of the Transformer. |
| 20 | To & Fro Transportation with handling charges. |
| 21 | Less Scrap value |
| 22 | Overhead & Supervision Cost @ 10% |
| 23 | Complete repairing of 315 KVA, 3.3 kV/550V TSU of Khottadih Colliery. (Inclusive of EPF/CMPF) |
| 24 | Dismantling of Core & Winding from transformer tank as well as old primary & Secondary coils fromcore. |
| 25 | Cost of towards supply of New Electrolyte grade enameled Double fiber glass covered pre varnished copper strips for Primary Winding@ 74Kg Per Lim × 3 Limb. |
| 26 | Cost of towards supply of New Electrolyte grade enameled double fiber glass covered pre varnished copper strips for Secondary coils@54Kg per Limb × 3 Limb… |
| 27 | Insulation cost pf Primary & Secondary Coils |
| 28 | Cost of F Class Insulating materials such as Fiber glass sheet, oil duct, coil separator (Chips), Nomex Paper,Nomex tape etc. |
| 29 | Cost towards double glass covering & varnishing withheat treatment. |
| 30 | Cost of D.A., Oxygen, brazing Rod. |
| 31 | Reformation of Primary & Secondary Coil |
| 32 | Supply of Wooden forma for formation of Primary &Secondary coils. |
| 33 | Supply of F class Varnish |
| 34 | Supply of thinner |
| 35 | Cost of painting charges inner side of above Trans switch unit by anticorrosive paint & two coat ofmetallic paints. |
| 36 | Re-assembling of new coils with inter connectionwith proper blazing, baking/heating properly to improve IR value upto required level. |
| 37 | Repairing of Tape changer switch. |
| 38 | Testing charges of the Transformer. |
| 39 | To & Fro Transportation with handling charges. |
| 40 | Scrap value of old Conductor |
| 41 | Overhead & Profit @ 10% |
| 42 | Total impact of GST for the purpose of CTC Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Aug 10, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedAug 20, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 4 daysAug 21, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 5 daysTender Documents
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