IISER-K/IWD/Elect/26-27/25
Indian Institute of Science Education and Research - Kolkata · Mohanpur, West Bengal · Repair, Maintenance & AMC Services · open
Key facts
- Tender value: ₹9K
- EMD: ₹20K
- Published: 02 Nov 2026
- Closing date: 16 Nov 2026
- Status: open
- Status as of: 07 Nov 2026 02:48 UTC
- Office: IISER Kolkata, Mohanpur Campus
Description
Servicing and maintenance of 11 KV HT VCBs at Electrical Sub-Stations of IISER-Kolkata, Mohanpur Campus, including replacement of damaged spare parts.
Eligibility & requirements
- Startup relaxation: No
- MSE relaxation: No
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Commercial terms
- Bid type: Item Rate
- Make in India (MII): No
- MSE preference: No
Line items (18)
- Servicing, contact-resistance measurement (micro-ohmmeter) and open/close timing test of HT VCBs and Isolator — 800A, SIEMENS Make 11 KV HT VCB including checking of vacuum-interrupter integrity as applicable, Cleaning, greasing and torque-checking of all bolted HT connections at the double-pole, gantry, bus links, VCB terminals to eliminate loose-connection hot-spots. with submission of test report as per the scope of work — Qty: 12 Complete Job
- Servicing, testing and calibration check-up of CT/PT and Protection Relays for Siemens 7SR1206/7SR1002 Numerical Protection Relays / Schneider make Mi Com P111 Numerical Relays at ESS-1 including secondary-injection testing of Overload (51), Instantaneous Short-Circuit (50) and Earth Fault (51N/50N) relay elements, verification of pick-up & operating time against the approved settings, and co-ordination with TCS relay with re-calibration where required, subject to on-site approval from the Engineer-in-Charge. Relay parameters must be conducted/verified through an authorised testing agency and a signed test certificate submitted. — Qty: 12 Complete Job
- Thermostat rod type 50-800c with Pair of Heater 80 Watt Strip Type — Qty: 12 set
- Double Bit Key Lock Bar Assembly(as per attached Photo) — Qty: 8 Nos.
- Door Interlock "L" Assembly for 11 kv(as per attached Photo) — Qty: 12 set
- TNC Switch Kaycee / Recom Make 40Amp (as per attached Photo) — Qty: 12 Nos.
- Castle Lock "A" Mark(as per attached Photo) — Qty: 12 set
- Rack In/Out Drive Spindle/Shaft Type 3AH0104IZ 800 Amps 26.3 KA — Qty: 2 set
- Trip Coil 24V DC. INSPROS,2.65Ω — Qty: 12 Nos.
- Closing Coil 24V DC. INSPROS,2.65Ω — Qty: 12 Nos.
- 11KV , 3.15Amp, HRC PT Fuse , Bussman-Eaton Power / Phonex Make, 12ABCNA3-15/B1 — Qty: 1 set
- Indication Lamp ON/OFF/PT/Auto Trip ( R , Y, B, A and G ) — Qty: 20 Nos.
- Nut & Bolt 8/15 Full Thread — Qty: 50 Nos.
- Bolt 8/55 Half Thread with washer — Qty: 50 Nos.
- O/C & E/F Relay 7SR1206-2JA, ARGUS, 1/5AMP Siemens make — Qty: 1 Nos.
- O/C & E/F Relay 7SR1002-2JA, ARGUS, 1/5AMP Siemens make — Qty: 1 Nos.
- Spring charge motor for 11 KV 1250 Amp HT VCB for existing 11 kv HT Switchboard at ESS-I HT VCB Model No:-8BK88-3AHO 104-IZ Ur -12KV,fr-50Hz,Ir-800A, Isc-26.3 kA, DC Comp-32%, — Qty: 1 Nos.
- SMPS Power pack 220v AC/24 v DC 1 kvA — Qty: 3 Nos.
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