Tender For Supply, Installation, Testing And Commissioning Of Neutral Grounding Resistor (Ngr) 3.3 Kv Protection System In 33Kv/3.3Kv Power Transformers And 3.3Kv Dg Set At 33Kv Substation And Ngr 440V Protection System In 3.3Kv/550V/440V Power Trans
Tender Value
32 Lakhs
Estimated cost
Bid Submission
22 Oct 2026
4 days left
EMD
40100
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
Korea → Chhattisgarh
EMD Exemption
Not Available
Quantity
Not Available
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Address
Project Description
Tender for Supply, Installation, Testing And Commissioning Of Neutral Grounding Resistor (Ngr) 3.3 Kv Protection System In 33Kv/3.3Kv Power Transformers And 3.3Kv Dg Set At 33Kv Substation And Ngr 440V Protection System In 3.3Kv/550V/440V Power Transformers At Ncph, Rani Atari And Vijay West Ug Mines Of Chirimiri Area. Nit No: Secl/Chrm/Em/E-Nit/26-27/42 Dtd. 15.10.2026
BOQ
| Sl. No. | Item Description |
| 1 | a) 3.3 kV NGR Monitoringi) Protection panel control unit with E/L EF relay box, supply voltage 110V/220Vii) Cabinet enclosure 14 SWG powder coatediii) Pedestal frameiv) Resin cast NCT 1/190 mm (3.3 kV grade or above)v) Reactor terminal assemblyvi) Control knob gland platevii) Potential Transformerviii) NGR Monitoring Fail Safe Relay-range (100 mA to 10 A in step of 100mA)ix) Fuse enclosure, HRC fuse, connectors, glandsx) Control wires and bushing studs, buzzer(Electronic)xi) Powder coated control panel and resistance box with all accessories, Outdoor typexii) Power packunit2 nos. one for Fail Safe Relay & 2nd for NGR sensor b) 3.3 KV NGR resistance paneli) 3.3 kV NGR 190 ohms 10% punched type stainless steel non-megnetic Grid resisterii) Cabinet enclosure 14 SWG powder coatediii) Pedestal frameiv) Terminal and connection copper leadv) Gland and plate assemblySAFETY FEATURES FOR SET OF NGR with deployment as follows:04 Nos. for NCPH SA i.e. (i) 01 No. 3150 kVA, 33KV/3.3KV , Power Transformer. (ii) 01 No. 1600 kVA, 33KV/3.3KV , Power Transformer. (iii) 01 No. 2000 kVA, 33KV/3.3KV , Power Transformers (To be installed) & (iv) 01 No. 1010 kVA, 3.3kV Diesel Generator Set., 02 Nos. for Rani Atari UG Mine i.e. (v) 01 No. 2000 kVA, 33KV/3.3KV , Power Transformer & (vi) 01 No. 1010 kVA, 3.3kV Diesel Generator Set, 01 No. for Vijay West UG Mine i.e. (vii) 01 No. 1600 kVA, 33KV/3.3KV , Power Transformer. |
| 2 | Providing & fixing of NGR 440/550 V protection at surface substation ofNCPH Colliery R-6 Mine, NCPH Old Mine, CHP and Colony of NCPH Sub-Area & Rani Atari and Vijay UG Mines of Rani Atari SA.Supply and fixing of NGR & Sensitive Earth Fault Relay, SPP, Short circuit Relay etc. at secondary side of transformer: (22 Nos. NGRs for NCPH SA as mentioned below) :01 No. : 63 kVA, 3.3kV/440V transformer, 33/3.3kV Substation NCPH Colliery R-6 Mine01 No. : 315 kVA, 3.3kV/550V transformer, 3.3kV Substation NCPH Colliery R-6 Mine01 No. : 250 kVA, 550V/440V transformer, 3.3kV Substation NCPH Colliery R-6 Mine01 No.: 500 kVA, 3.3kV/550V transformer, 3.3kV Substation NCPH Colliery Old Mine01 No.: 100 kVA, 3.3kV/440V transformer, 3.3kV Substation NCPH Colliery Old Min01 No.: 630 kVA, 3.3kV/440V transformer, 3.3kV Substation NCPH CHP/Siding01 No.: 200 kVA, 3.3kV/550V transformer, 3.3kV Substation NCPH CHP/Siding01 No.: 75 kVA, 3.3kV/550V transformer, 3.3kV Substation NCPH CHP/Siding14 Nos.: 3.3kV/550V transformer of different capacities, NCPH Colony, NCPH Sub-Area (02 Nos. NGRs for Rani Atari UG Mine as mentioned below) : 01 No.: 160 kVA, 3.3kV/440V transformer, 3.3kV Substation 01 No.: 200 kVA, 3.3kV/440V transformer, 3.3kV Substation (02 Nos. NGRs for Vijay West UG Mine as mentioned below) : 01 No.: 160 kVA, 3.3kV/433V transformer, 3.3kV Substation 01 No.: 500 kVA, 3.3kV/550V transformer, 3.3kV Substation |
| 3 | Earthing with G.I. earth pipe 4.5 metre long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/ coke and salt as required (For NCPH - 52 Nos. & For RASA - 20 Nos.) |
| 4 | Total impact of GST for the purpose of CTC Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Oct 16, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedOct 22, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 4 daysOct 23, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 5 daysTender Documents
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