Tender For Urgent Rewinding Of Rotor Including Replacement Of Damaged And Burnt Out Components Of 6 Kv, 360 Kw, Ngef Make Slip Ring Induction Motor For 100 Cusec Capacity Swf Pump Unit. G At Dlps.
Tender Value
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Estimated cost
Bid Submission
20 Jul 2026
10 days left
EMD
40000
Bank guarantee accepted
Document Fee
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Non-refundable
Tender Type
Online
Tender Overview
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Tender ID
Competition Type
NCB
Bidding Type
Tender
Location / State
Kolkata → West Bengal
EMD Exemption
Not Available
Quantity
Not Available
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Project Description
Tender for Urgent Rewinding Of Rotor Including Replacement Of Damaged And Burnt Out Components Of 6 Kv, 360 Kw, Ngef Make Slip Ring Induction Motor For 100 Cusec Capacity Swf Pump Unit. G At Dlps.
BOQ
| Sl. No. | Item Description |
| 1 | TOTAL |
| 2 | Preliminary checking and testing of IR value, insulation leakage of startor, cracks of porcelin bushings, conn. Terminal leads, fibre glass terminal blocks and rotor end ring joints etc, before to detect the fault for 3.3 KV /6.6 KV sq. cage induction Motor.... (Rate as per I & W SCH-2022, ITEM NO. 5.3J.2 PG. 124) |
| 3 | Taking out carefully the slip ring set of the induction motor by removing the connection from the LRS unit and dismantling the top cover and bearing. (Open Quotation) |
| 4 | Taking out the 3.3 KV /6.6 KV sq. cage induction Motor from coupling end of 100/150 cusec vertical axial flow propeller pump after dismantling all connection including earthing etc. The motor is to be kept on wooden sleeper at a suitable distance from the floor without damaging the earthing strips and cables etc. as per direction of E.I.C... (Rate as per I & W SCH-2022, ITEM NO. 5.3J.1 PG. 124) |
| 5 | Dismantling the 6 kv HT motor after tripping the VCB manually & disconnection of the power & control cables after opening bolts and nuts, with the help of overhead crane & proper tools & tackels, and also stacking the HT power cable & Control cable on wooden sleeper at a suitable place as per direction of EIC... (Open Quotation) |
| 6 | Conducting statutory testing of the slip-ring such as resistance measurement, induction measurement, high pressure test as per relevant IS code of 6 kv motor and complete in all respect with proper care & caution. (Open Quotation) |
| 7 | Disassembling the motor end and opening of end shield covers, stator coil guard, taking out the rotor from the stator and placing it on the proper arrangement by hoisting mechanism. Thoroughly cleaning of the stator coil insulations, motor bearings, rotor core surface and end ring joints to demoisturishing of the deposited carbon with carbon tetrachloride and heating the stator by silicon heating elemenys periodicaly at a required temperature and covered with terpulin for heat protection along with the arrangement of compressedf air to blow the vapour moisture and to develop its IR value and varnishing with Dr. Beck’s graded CLASS-H varnish including jel epoxy coatying tyo prevent from the moisture Upto 475KW squirrelcage Induction motor of voltage rating 6.6KV... .. (Rate as per I & W SCH-2022, ITEM NO. 5.3J.3.2 PG. 124) |
| 8 | DRIVING END HOUSINGUnder cut of damaged DE side bearing housing portion, metal deposition on die under cut surface, machining, turning & polishing with proper tolerance according to the size of bearing outer. Work should be completed in all respects up to the satisfaction of E.I.C...... (Rate as per I & W SCH-2022, ITEM NO. 5.3J.8 PG. 125) |
| 9 | NON DRIVING END HOUSINGUnder cut of damaged N DE side bearing housing portion, metal deposition on the under cut surface, machining, turning & polishing with proper tolerance according to the size of bearing outer. Work should be completed in all respects up to the satisfaction of E, I.C.... (Rate as per I & W SCH-2022, ITEM NO. 5.3J.9 PG. 125) |
| 10 | DRIVING END SHAFT JOURNALUnder cut of damaged DE s ide bearing journal portion, metal deposition on the under cut surface, machining, turning & polishing with proper tolerance according to the size of bearing bore. Work should be completed in al| respects up to the satisfaction of E.I.C... . (Rate as per I & W SCH-2022, ITEM NO. 5.3J.10 PG. 125) |
| 11 | NON DRIVING END SHAFT JOURNALUnder cut of damaged DDE side hearing journal portion, metal deposition on the under cut surface, machining, turning & polishing with proper tolerance according to the size of bearing bore. Work shoul d be completed in all respects up to the satisfaction of E.1.C ..... (Rate as per I & W SCH-2022, ITEM NO. 5.3J.11 PG. 125) |
| 12 | Complete dismantling the slip-ring unit including carbon holder, carbon, slip-ring holder attachment. And also Checking & testing the dismantled 6 KV HT slip Sring motor for its stud & opening all insulation like glass tape, insulating packing etc. as per diretion of E.I.C. (Open Quotation) |
| 13 | Repairing & servicing of motor terminals HT bushing & terminal box. (Open Quotation). |
| 14 | To remove the rotor copper bars it has to be straighten, 2 copper bars in each slot … (Open Quotation) |
| 15 | Complete removal of damaged insulations, copper bars etc from the rotor with care & caution to avoid any damages as per the direction of EIC… (Open Quotation). |
| 16 | Rotor core Surface to be cleaned washed & dressed by proper way using CTC detergent. A light coat varnish to be applied on the rotor core after complete dressing and proper baking. and laminated wedges to be inserted in the slot portion. Overhang to be properly braced as per direction of EIC.... (Open Quotation). |
| 17 | Bending of copper bars, 2 copper bars in each slot to fix it in the rotor groove as per requirement… (Open Quotation). |
| 18 | Complete rewinding of rotor by 99% grade electrolytic copper bars along with socketing 195 numbers of copper strips in both ends & wires incl supply of insulation paper, nomex paper etc. … (Open Quotation). |
| 19 | Entire rotor core & winding assembly to be baked and varnished by using Dr. Beck's makes varnish. Thereafter, final coating of varnish to be applied for anti-coated moisture protecting tropical paint (Dr. Beck's paint). and Heat treatment of rotor by inserting it inside a heat chmaber for 72 hours... (Open Quotation). |
| 20 | S & F of 4m. Length of 95 sq.mm. /3.3 KV/6.6 KV grade H.T. glass copper leads with end finishing by 95 sq.mm. heavy duty dowells copper lug at STAR conn. Terminal leads including replacement of glass fibre terminal block and SS bolts etc. (I&W SCH-2022, ITEM NO- 5.3.J.4, P-125) |
| 21 | Properly cheeking, testing of developed IR value of the motor, leakage factor of bushings, terminal shortings, IR value of G.F.blocks etc. after the necessary repairing works for 3.3 KV /6.6 KV sq. cage induction Motor… (I&W SCH-2022, ITEM NO- 5.3.J.8, P-125) |
| 22 | Repairing of slip ring by first remove all the insulated sheath of Ring unit and gradually open out individually from its base. Then clean the slip-ring base unit thoroughly by heating arrangement and open out the damaged insulation layer upto the fully bare condition. After the metalizing of the damaged portion of the base unit of slip-ring it is to be sent to machine shop for alignment and smoothing of the outer & inner surface along with making key slots for making the locking arrangement with the motor shaft. After proper Machining & polishing the outer & inner surface of slip-ring unit and lapping it with 6 mm insulation sheet to its base and casting it whole with the insulation to insulate each phase of the rotor properly. After completion of insulation arrangement, slip-ring unit will be fit and fix its base individually maintain proper alignment of each ring as per motor design. The rings will be locked individually to its base. Finally insulate the whole unit by Dr Beck varnish to insulate from dirt & dust before re-alignment of complete slip-ring unit assembly for the last time... (Open Quotation). |
| 23 | Supply , fitting & fixing of carbon brush with pig tail (grade M16E) & holder as per required size & shape of existing for the 6.6 KV rated motor and complete in all respect as per direction of EIC. … (Open Quotation). |
| 24 | Refitting the 6.6 KV Slip ring set over the motor with all its necessary coupling accessories to its position including fifling fixing with bearing housing, non-reversable ratchet unit and pump shaft with proper tolerance and clearance and reconnection of terminal points of the completion of necessary work and satisfactory 2 hours trial run of the pump as perdirection of E.I.C. ... (Open Quotation). |
| 25 | Manufacture and supply of Motor coupling with pump as per specification, drawing or existing one with proper tolerance and finish as per direction. Of EIC along with Coupling Pin (Mat. CS IS1570-40C8 HOT RLD) in motor coupling…. (Open Quotation). |
| 26 | DYNAMIC BALANCINGTrueness check ing & dynamic balancing of rotor. (Certificate is to be Pro vided to Authority)… (I&W SCH-2022, ITEM NO- 5.3.J.12, P-125) |
| 27 | Structural M.S Bolt / Nut / Washer (Hot dipped Galvanised)… (I&W SCH-2022, ITEM NO- 22, P-68) |
| 28 | Reassembling the 3.3 KV /6.6 KV sq. cage induction Motor including placing the rotor into the stator, refixing the coil guard, prefixing the motor covers, terminal leads, terminal blocks, cable entry box, terminal box aftetr completion of repairing works. Upto 475KW squirrelcage Induction motor of voltage rating 6.6KV.. (I&W SCH-2022, ITEM NO- 5.3.J.5.2, P-125) |
| 29 | Painting with best quality epoxy primer & epoxy enamel paint (two coat ) of approved make and brand after necessary scapping cleaning etc. including smoothening surface by sand papering etc… (Open Quotation). |
| 30 | Necessary checking, testing & calibration of following relay (for 6 KV Panel) Each relay set consists of following relays MICOM P110 /122/127/ 1 NO. CGL 14N/C- 1 NO VAX31 - 1 NO, VAA-33-1NO VAMP-31 - 1 NO, VAJH-13-1NO, and For motor protection (6 kv motor): Each relay set consists of following relays C.T.M.M. Motor protection all relay and 1 NO. VAJH 13 - 1 NO.... (Open Quotation). |
| 31 | Refitting the pump motor (3.3 KV /6.6 KV sq. cage induction Motor) set with all its necessary coupling accessories to its original position including fitting fixing with bearing housing, non-reversable ratched unit and pump shaft with proper tolerance and clearance and reconnection of terminal points of the completion of necessary work and satisfactory 2 hours trial run of the pump motor set as per direction of E.I.C.... (Open Quotation). |
| 32 | To & from transportation of motor from work site to the repairer / servicer work shop and vice-versa including loading and unloading with proper care & as per direction of EIC…. (Open Quotation). |
| 33 | Hydra hire Charges … (Open Quotation). Please Enable Macros to View BoQ information |
AI Tender Summary
Tender Timeline
Jun 30, 2026
11:30 IST
Tender Published
Tender notice published.
CompletedJul 20, 2026
17:00 IST
Bid Submission Deadline
Online submission via eProcurement portal.
Upcoming · 10 daysJul 22, 2026
Bid Opening Date
Technical bids will be opened and evaluated.
Upcoming · 12 daysTender Documents
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