Tender For Overhauling, Cleaning And Servicing Of 2 Nos. 500 Kva Dry Type Transformers, 3 Panel Ht Vcb & 2 Nos. Lt Acb Panel Including Earthing Installation In The Sub-Station Of The Administrative Building, Barasat, North 24 Parganas.
Tender Value
Ref. Documents
Estimated cost
Bid Submission
21 Sep 2026
10 days left
EMD
8712
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
24 Paraganas North → West Bengal
EMD Exemption
Not Available
Quantity
Not Available
Website
Contact Person
Address
Project Description
Tender for Overhauling, Cleaning And Servicing Of 2 Nos. 500 Kva Dry Type Transformers, 3 Panel Ht Vcb & 2 Nos. Lt Acb Panel Including Earthing Installation In The Sub-Station Of The Administrative Building, Barasat, North 24 Parganas.
BOQ
| Sl. No. | Item Description |
| 1 | Charge for Inspection of HT 3 Panel VCB to identify and rectify various defects within it to perform satisfactorily as per direction of EIC. |
| 2 | Checking & Servicing of the H.T. 3-Panel Switch Board (VCB) along with busbar, risers and sockets contacts. 3 Nos. withdrawing, section wise megger (2.5KV) testing. Thorough checking of VCB’s with their mechanism. All the components of the switch board incld. Spouts of the panel, P.T. plugging chamber .etc. thoroughly checking and cleaning. |
| 3 | Checking & Cleaning of VI Housing and Breaker spout as per direction of EIC |
| 4 | Tightening of LT terminals of CT, PT and control terminals as per direction of EIC. |
| 5 | Charge for Testing CT Ratio & Insulation test as per direction of EIC. |
| 6 | Panel aligment incl. wiring checking & tightening as per direction of EIC. |
| 7 | Checking of Transformer Protection Auxiliary relays as per direction of EIC. |
| 8 | Testing the overload and earth fault tripping coils of all the gears of H.T. 3-Panel Switch Board by secondary injection Relay Testing Set incld. Making necessary calibration for proper tripping according to full load current of the transformers incld. Carrying the Relay Testing set to and from site. |
| 9 | Servicing of L.T. Panel by cleaning the parts oiling the cams gears spring shaping the contracts if required checking the insulation value by L.T.Measuring Kit as per direction of EIC |
| 10 | Preventive maintenance shall be carried out once in year. Customer representative shall accompany engineer/team during preventive maintenance visit to site and shall necessary shout down of the equipment’s and access to the site after discharge through equipment.SCOPE OF PREVENTIVE MAINTENANCE OF LV ACBa) 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 Relayg) Checking of main contact wear by physical inspectionh) Cleaning and greasing of Breaker main Mechanism by Schneider recommended fully synthetic imported multipurpose grease to increase the reliability in terms of mechanical as well as electrical properties and their endurancei) Inspection of main spring/tripping spring/locking springj) Dismantling, cleaning and greasing of spring charging handlek) Inspection/cleaning of breaker rear terminals &greasing theml) Inspection/cleaning of the changeover contacts of the OF switchm) Dismantling, cleaning/greasing and assembling of clusters(applicable for draw out circuit breaker only)n) Dismantling, cleaning/greasing (as required) of hand pullout system, racking mechanism of the system. |
| 11 | Charges for Inspection for the 2Nos. 500KVA transformer to identify & rectify various defects within it by specialised technician personnel, servicing, cleaning, testing of all accessories of the 500KVA Transformer by highly skilled specialised technician personnel as per direction of EIC. |
| 12 | Earthing with 80 mm dia (Make- TATA - Medium) 3.04 meter long GI Pipe 13mm dia X 80mm long GI bolts. Double Nuts double washers at the both ends of Standard GI(Hot Dip) wire and S&F. 50mm dia GI pipe Protection (3- meter long) to be filled party under ground level partly above ground level to an average depth of 3.05meter for moram soil. |
| 13 | Making 450mmX 450mm Earth pit having 40 Nos brick wall with inside plastering and with heavy duty 6mm Spcial type M.S. Pit cover to cope with the load of a loaded truck. |
| 14 | Extra for treatment of soil by using salt and charcoal/coke for pipe electrode. |
| 15 | Supply & Fixing earth busbar of galvanized (Hot Dip) GI Flat 50mm x 6mm dia on wall having clearance of 6mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers spacing insulator etc. as required. |
| 16 | Insulating the 50x6 mm GI flat incl. S&F black heat shrink PVC sleeve etc. The PVC tube sleeve to be inserted on the GI flat and heat shrinkd by heating apparatus by skilled technician carefully without damaging the PVC sleeve as per direction of the EIC ( for transformer neutral earth busbar). |
| 17 | Dismantling all types of plain cement concrete works, stscking servicable materials at site and removing rubbish as directed with in a lead of 75mm. |
| 18 | Ordinary cement concrete with graded stone chips (20 mm) nominal size exluding shuttering and reinforcement if any in ground floor as per relevant IS Codes. (Pakur variety) |
| 19 | Testing of the Sub-station Euipment & System Earthing value by (0-10Ohms) Earth tester. |
| 20 | Finishing of the 400 Sq. mm. L.T. cable insulated armoured cable by crimping method incl. supplying and fixing solderless socket tapes anticorrosive paste & jointing materials. Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Sep 08, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedSep 21, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 10 daysSep 23, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 12 daysTender Documents
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