Tender For Providing Of Compact Sub Stn (250 Kva Transformer) And Connected Items At Lower Dahung And 01 X 15 Kva Genr Set For Ee Mech Section Under Ge Tenga
Tender Value
53 Lakhs
Estimated cost
Bid Submission
24 Sep 2026
4 days left
EMD
1.04 Lakhs
Bank guarantee accepted
Document Fee
1000
Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
siliguri → West Bengal
EMD Exemption
Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender For Providing Of Compact Sub Stn (250 Kva Transformer) And Connected Items At Lower Dahung And 01 X 15 Kva Genr Set For Ee Mech Section Under Ge Tenga
Corrigendum
| Sr No | Corrigendum Date | Corrigendum | Type | New Submission Date |
|---|---|---|---|---|
| 1 | 22-Aug-2026 | CORRIGENDUM NO 01 | Date | 17-Sep-2026 |
| 2 | 17-Sep-2026 | Bid Auto Extn Corrigendum | Bid Auto Extn Corrigendum | 24-Sep-2026 |
BOQ
| Sl. No. | Item Description |
| 1 | Supply and Installation of 11 KV Compact Sub Station 250 KVA consisting of following items :- |
| 2 | (A) HT SWITCHGEAR 11kV, 630Amps 21KA for 3 Sec. SF6 insulated Non-Extinsible Compact switchgear(Type CV) consisting ofOne No's fixed Manual load break switches(LBS) andone No. Fixed Manual Vacuum Circuit Breaker(VCB) having inbuilt load break switch and earth switch within SF6 insulated robotically welded non ferrite non magnetic stainless steel enclosure of thickness 2.0mm having IP 67, with series trip,self powered microprocessor based numerical 3 O/C & 1 E/F relay (IDMTL + Inst.) protection.Interconnection between HT switchgear and transformer shall be using 1Cx3x95 sq.mm Al. unarmorured XLPE Cable 1 No. Relay shall be self powered (50,50N,51,51N) with RS485 communication port 1 No. Protection CT shall be 40/1A 2.5VA 5P10. 1 Set. Standard Manometer (SF6 Gas Pressure Indicator) 1 No. Fault Passage Indicator(FPI) for incoming LBS only 1 No. Voltage presence indicator(VPIS) for incoming Healthy Indications 1 Set Manual push button for breaker ON/OFF 1 Set Mechanical Indication for Breaker & LBS ON/OFF/EARTHED. 3 No. Operating handle 1 No. All incoming modules of the RMU shall be capable for cable termination of 3C x 300 sq.mmAl XLPE Cable, incoming cable termination kits shall be in the scope of purchaser only. |
| 3 | (B) Transformer 250 KVA 11kV/433V Dyn11 Copper Wound Cast Resin Dry Type (AN) distribution Transformer with Off Circuit Tap Links (Make: ABB Approved vendors) 1No. Off Circuit Tap Links (OCTL), Tapping range +7.5% to -7.5% in a steps of 2.5% (6 Steps/7 Positions) Insulation Class:C, Temp. Rise Shall be 90 Deg. C Over an ambient of 50 Deg.C Temp. Transformer Losses: As per IS 2026 & IS 11171 No Load Losses : As per Manufacturers Standards Load Losses at 75 Deg.C : As per Manufacturers Standards % Impedance (%Z) shall be 6.25% (Subject to IS Tol.) Rating & Diagram (R&D) Plate (Fitted on Transformer) 1 No. Surge Arrestor (Fitted on Transformer CCA on HV Side) 1 No. Digital Winding Temp. Indicator with Alarm and Trip Contacts (With RS-485 Port). |
| 4 | (C) LT PANEL- 400A Aluminium Busbar (100% for Phase & 50% for Neutrals) Current density 1amp/sqmm, having IP2X, Fabrication using 1.5/2mm CRCA sheet steel complete with internal wiring consisting of following. INCOMER From transformer 400Amps 4P 50Hz 50KA Fixed Manual TypeMoulded Case Circuit Breaker (MCCB)with microprocessor based release for Overload (O/L), Short circuit (S/C) & Earth Fault (E/F) protection. 1 No. LED type Indicating Lamp - RYB, ON-OFF-TRIP. 1 Set. LT side metering CT 400A/ 5A, 5VA, Cl:1.0 1 Set Digital Multifunction Meter (MFM), CL-1.0 Accuracy with RS485 Port |
| 5 | (D) OUTDOOR ENCLOSURE Outdoor type enclosure having construction of Galvanised Sheet Steel having 1.5mm thickness for Non-load bearing & 2.0 mm for Load bearing partition sheets & Door with HRCA 4 mm base frame. The Enclosure shall have IP54 degree of protection for HT & LT switchgear compartment & IP23 degree of protection for Transformer compartment. The enclosure exterior shall be Powder Coated (Colour Light gray and dark gray ). Each compartment will be provided with the door and pad locking arrangement. The Compartment illumination lamp with door operated switch shall be provided for MV & LV compartment. As per IEC 62271-202 Please Enable Macros to View BoQ information |
| 6 | (D) OUTDOOR ENCLOSURE Outdoor type enclosure having construction of Galvanised Sheet Steel having 1.5mm thickness for Non-load bearing & 2.0 mm for Load bearing partition sheets & Door with HRCA 4 mm base frame. The Enclosure shall have IP54 degree of protection for HT & LT switchgear compartment & IP23 degree of protection for Transformer compartment. The enclosure exterior shall be Powder Coated (Colour Light gray and dark gray ). Each compartment will be provided with the door and pad locking arrangement. The Compartment illumination lamp with door operated switch shall be provided for MV & LV compartment. As per IEC 62271-202 Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 17, 2026
11:30 IST
Tender Published
Tender notice published.
Completed
Sep 17, 2026
18:00 IST
Corrigendum-1 Issued
Clarifications on tender conditions and amendments issued.
Completed
Sep 24, 2026
18:00 IST
Corrigendum-2 Issued
Clarifications on tender conditions and amendments issued.
Upcoming · 4 daysSep 24, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 4 daysOct 01, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 11 daysTender Documents
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