Tender For Overhauling, Cleaning, Servicing And Checking Of 2 Nos. 500Kva Dry Type Transformer, 11 Kv 3-Panel Ht Vcb And Lt Acb Panel With Replacement Of Faulty Spare Parts Including Earthing Installation In The Sub-Station Of Barasat Government Medi
Tender Value
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Estimated cost
Bid Submission
17 Aug 2026
1 days left
EMD
8279
Bank guarantee accepted
Document Fee
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Non-refundable
Tender Type
Online
Tender Overview
Organization
Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
24 Paraganas North → West Bengal
EMD Exemption
Not Available
Quantity
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Project Description
Tender for Overhauling, Cleaning, Servicing And Checking Of 2 Nos. 500Kva Dry Type Transformer, 11 Kv 3-Panel Ht Vcb And Lt Acb Panel With Replacement Of Faulty Spare Parts Including Earthing Installation In The Sub-Station Of Barasat Government Medical College And Hospital In North 24 Parganas District.
BOQ
| Sl. No. | Item Description |
| 1 | Cleaning, Checking & Servicing of the 11KV, 630A, 3-Panel Board (VCB) along with busbar, risers, spouts and contacts followed by checking all the joints and also 3 nos. Vacuum Circuit Breaker unit drawn out from the panel including checking mechanical & electrical operation, contacts and healthiness of tripping mechanism including servicing & testing the same with Megger (2.5KV) in presence of Electrical Supervisor having professional registration. Thorough cleaning and checking of all the components of the Switch board incl. Potential Transformer, plugging chamber, Display Panel Board of HT VCB Panel equipped with Ammeter, Voltmeter, Selector Switches, Indicators and others etc. and replacing of space heater if required. |
| 2 | Checking & Cleaning of VI Housing and Breaker spout as per direction of EIC |
| 3 | Tightening of LT terminals of CT, PT and control terminals as per direction of EIC. |
| 4 | Charges for Testing CT Ratio & Insulation test as per direction of EIC. |
| 5 | Panel alignment incl. wiring checking & tightening as per direction of EIC. |
| 6 | Checking of Transformer Protection Auxiliary relays as per direction of EIC. |
| 7 | Testing the over current and earth fault tripping coils of the above H.T. 3-Panel Vacuum Circuit Breaker Panel Board by secondary injection Relay Testing Set including making necessary calibration for proper tripping according to full load current of the transformers incl. carrying charges of the Relay Testing Set from Co's workshop to work site. |
| 8 | Servicing, cleaning & checking of 500KVA Dry type, Dyn11 Transformer including checking all the Gasket joints, cable end terminals (Primary & Secondary) and tightening all components including taking care of preventive taping arrangements by S & F necessary materials as required incl. IR value measurement of HT and LT side of the same with Megger and checking of Neutral Earthing System connected with Brought Out Terminal of Transformer including taking care of preventive insulating arrangements by S & F necessary materials as required and testing the same with Earth Tester in presence of Electrical Supervisor having professional registration and also checking of Scanner for the Protection of Transformer including checking the setting & the health of the same and also checking of Alarm & Trip Circuit. |
| 9 | Servicing, cleaning & checking of the each part of main L.T. ACB Panel Board including busbar section and all the outgoing switches with their feeder cable connections including checking & tightening all the terminal joints, contacts with providing necy. nuts-bolts-washers etc. (if reqd.) & taking care of preventive insulating arrangements by S & F necessary materials as required and checking the insulation value by L.T. Measuring Kit as per direction of EIC and also checking of Display Panel Board of the L.T. Panel equipped with Ammeter, Voltmeter, Selector Switches, Indicators with their auxiliary circuits including testing the same. |
| 10 | Servicing, cleaning & checking of 2 nos. 415V, 800A, 50KA draw out type Air Circuit Breaker as incomer & 1 no. 800A ACB as bus coupler of said LT panel including IR value measurement of the same with Megger in presence of professionally registered Electrical Supervisor. |
| 11 | The scope of work also includes the followinga)Dismantling, cleaning and assembling of front cover, push button, locking device.b)Dismantling, cleaning of arc chute cover and terminal shield.c)Dismantling, cleaning, checking and assembling of arc chute.d) Dismantling, cleaning/greasing and assembling of electrical spring charging Motor. (In Electrical only)e)Dismantling, cleaning, checking/testing and assembling of tripping coil/closing coil. (In Electrical Only)f)Dismantling, cleaning & tightening of Protection Relay.g)Checking of main contact wear by physical inspection.h)Cleaning and greasing of Breaker main Mechanism by L&T recommended fully synthetic imported multipurpose grease to increase the reliability in terms of mechanical as well as electrical properties and their endurance.i)Inspection of main spring/tripping spring/locking spring.j)Dismantling, cleaning and greasing of spring charging handle.k)Inspection/cleaning of breaker rear terminals & greasing them.l)Inspection/cleaning of the changeover contacts of the OFF switch.m) Dismantling, cleaning/greasing and assembling of clusters.n)Dismantling, cleaning/greasing (as required) of hand pullout system, racking mechanism of breaker.o)Chassis and function position indicators.p)Checking and tightening of control unit connection block and chasis rear terminals. |
| 12 | Checking & testing of Sub-station Earthing system with the help of EARTH TESTER equipment in presence of Electrical Supervisor having professional registration including submission of Test Report. |
| 13 | Supply, delivery & installation of four channel Temperature Scanner for replacement of existing old defective one after dismantling the same incl. necy. disconnection and connection as reqd.Temperature Indication range : 0 to 300 deg.CNo. of Relay output : 4 (Fan, Alarm, Trip & Fault)Operating condition : Temp:- 30 to 70 deg. C Temperature Sensor input : RTD (Pt-100 IEC 60751)Output : analogue output DC 4-20mA (max. burden 600 Ohms)Aux. Supply : 90-260 V AC/DC (Make- PRECIMEASURE Control, model- PMC 2241-B / PEACON or approved by EIC) |
| 14 | Supply & fixing Lockable Trip Push Button (LTPB) i.e., Castle lock & key of type- AA (Make- L&T, cat no.- SL93148OOOA) for replacement of defective one after dismantling the same from the existing Buscoupler-Air Circuit Breaker of make- L&T, model- CN-CS 800 S1. |
| 15 | Supply & fixing stainless steel chrome finish round shape Cam Lock for LT ACB Panel door of heavy quality & approved make. |
| 16 | Supply and fixing 4.5 /5 Kg carbon dioxide (CO2) type fire extinguisher conforming to IS 15222-2002 on wall with discharge hose & nozzle fixed with suitable iron bracket on wall incl. all accessories. [Make- Fire Shield/ Ceasefire/ Minimax] |
| 17 | Supply and fixing safety instruction chart in word duly framed with 5mm thick glass cover on wall as required (approx. Front area 1.20 sq.mt.) |
| 18 | Supply and fixing 9 Litre capacity GI bucket painted in post office red colour with prior coat of red-oxide paint and written with white paint 'FIRE' and mounted on MS angle iron frame with bracket and suitable base of appropriate size & capacity incl. complete filling with sand etc. |
| 19 | Supply and fixing Shock Treatment Chart pasted on hard board duly mounted on a wooden frame with 5mm thick glass cover on wall with necy. scews, nuts, bolts etc. as reqd. (approximate front area 1.20 sq.metre) |
| 20 | Supply and delivery of rubber mat of approved make having 2 mtr. Length x 1 mtr. Wide and 12mm thick to withstand 15 KV dielectric strength as per IS 15652-2006. |
| 21 | Supply & Fixing Mild Steel Checker plate (Jindal/Bansal/Tata) of 6 mm thick after cutting and sizing by LPG industrial gas & gascutter of following sizes on the existing ducting and also providing arrangement of lifting the checker plate by means of suitable sizes of half round cutting hole on trench as per direction of EIC. |
| 22 | 0.85Mtr x 0.7Mtr - 3 nos.0.7Mtr x 0.45Mtr - 2 nos.0.75Mtr x 0.35Mtr - 2 nos.1.1Mtr x 0.75Mtr - 1 no.0.9Mtr x 0.8Mtr - 2 nos.0.8Mtr x 0.25Mtr - 2 nos. |
| 23 | Supply and fixing Voltmeter Selector Switch for existing 3-ph Voltmeter of LT panel in replacement of defective one after dismantling the same. (Make- L&T/ Kaycee) |
| 24 | Supply and fixing Ammeter Selector Switch for existing 3-ph Ammeter of LT panel in replacement of defective one after dismantling the same. (Make- L&T/ Kaycee) |
| 25 | Supply & Fixing GI sheet (20SWG) metal Cowl with MS flat iron frame & GI wire mesh on wall with necy. bolts & nuts (6 mm dia x 62 mm long) |
| 26 | 45 cm Exhaust fan (18\\") (for existing fan) |
| 27 | Supplying and fixing MCB SS enclosure with IP-20/30 protection, powder coated provision for two/four pole MCB, concealed in wall after cutting the wall & mending good the damages to original finish incl. painting, connection & provision for earthing attachment. [Make- Legrand/L&T/ABB] |
| 28 | 4-Way |
| 29 | Supply & fixing of 230V, 50Hz, 24 hrs. Digital Time Switch (Make- L&T GIC, Crono 67DDT0) in existing SS enclosure for controlling exhaust fan as per direction of EIC. |
| 30 | Distribution wiring in 1.1 KV single core stranded 'FR' PVC insulated & unsheathed copper wire (Make- RR Kabel/Polycab/Finolex/Havells) in 20mm size PVC rigid conduit 'FR' (Precision make) incl. necy. fittings as required. |
| 31 | 2 x 22/0.3 (1.5 sqmm) + 1 x 22/0.3 (1.5 sqmm) ECC (for exhaust fan) |
| 32 | Finishing the end of following XLPE/PVC armoured cables by crimping method incl. supplying and fixing solderless socket (Dowels make), tapes, anticorrosive paste & jointing materials : |
| 33 | 4 core 400 sqmm |
| 34 | 4 core 240 sqmm |
| 35 | 4 core 120 sq.mm. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Aug 03, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedAug 17, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 1 dayAug 19, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 3 daysTender Documents
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