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💬 Talk to Our Bidding ExpertCorrigendum Preventive Maint in Kolkata - Complete Tender Details
Find eligibility criteria, important deadlines, bidding requirements, and download official documents for "Corrigendum Preventive Maint" in Kolkata, India.
West Bengal Electronics Industry Development Corporation Limited
Kolkata, West Bengal, India
NTID 46559245
- Opening Date : Mon 21st September, 2026
- Closing Date : Fri 18th September, 2026
- ₹ 106849.00
- NTID 46559245
Key Values: Document Cost: 500.00 | EMD: 2150.00 | Estimated Cost: 106849.00
Tender Description
Corrigendum : Preventive Maintenance And Overhauling Of Electrical Main Lt Panel At Taratala It Park
Documents
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Document-1
721.3 kBOil_India_ExtraDoc...Oil_India_ExtraDocument-GCO0449P23.pdf
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Document-2
721.3 kBOil_India_ExtraDoc...Oil_India_ExtraDocument-GCO0449P23.pdf
Latest Corrigendum List
| # | Corrigendum Title | Corrigendum Type |
|---|---|---|
| 1 | Bid Closing Date Extended further Corrigendum | Date |
BOQ Items Total Items : 7 | Total Qty : 72
| # | Item | Quantity | Units |
|---|---|---|---|
| 1 | MAINTENANCE SERVICE & OVERHAULING of HT OCB (Oil Circuit Breaker) rating 11000 volts, 400 amp (make: Siemens) which includes a) Draw out the OCB. b) filteration of transformer oil till desired BDV attained as per IS c) Cleaning & greasing of all moving contact parts. d) Checking tightness of busbar, CT connection etc. e) Checking the copper contacts. f) Checking of relays and meters g) Replacement of Spring charge h) Testing of OCB Panel includes i) Insulation resistance ii) contact resistance iii) PI test iv) BDV test of insulating oil | 1 | Nos |
| 2 | MAINTENANCE SERVICE & OVERHAULING of 04 nos. LT ACB (Air Circuit Breaker) rating 415 volts, 1660 amps (make: ABB) installed at LT Panel (cleaning & greasing of moving contacts, checking of tightness of all nuts & bolts of busbar & terminal, checking drawout mechanism with all internal parts, checking healthyness of main & isolating contacts, checking auto interlocking mechanism with all control wiring as per circuit diagram & necessary rectification if required). Testing of ACB (IR, Contact Resistanc Test etc.) with test kit. | 4 | Nos |
| 3 | MAINTENANCE SERVICE & OVERHAULING Preventive maintenance of 1000 kVA, 11 kV/433 V, 3-phase, 50 Hz, oil-immersed ONAN-cooled distribution transformer, vector group Dyn11, including isolation, visual inspection, checking for oil leakage, oil level, silica gel breather replaced, conservator, Buchholz relay (if provided), pressure relief device, temperature indicators, HV/LV cable terminations, and earthing connections. The work shall include tightening of all electrical connections, filteration of transformer oil till desired BDV attained as per IS, measurement of insulation resistance (IR), transformer oil BDV (Breakdown Voltage) test, High Voltage (HV/Dielectric Withstand) test, Open Circuit Test, Short Circuit Test, vector grouping & magnetic balance test, preparation of preventive maintenance report and restoration of the transformer to normal service. All necessary tools, calibrated test instruments, consumables, labour, safety precautions, and test reports shall be included. The work shall be carried out in accordance with relevant IS 2026, IS 1180, IS 1866, IEC 60076, and the Engineer-in-Charge's instructions. | 1 | Nos |
| 4 | MAINTENANCE SERVICE & OVERHAULING of LT Panel (including 350 KVAR APFC Panel, Isolators Panel) i) Cleaning of entire panel ii) Checking the tightness of busbar iii) Resetting of mechanism iv) Testing of Panel | 1 | LS |
| 5 | Supply and installation of LED indicator lamp for main LT panel, make: Reputed | 40 | Nos |
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