Name of Work: Complete Rewinding and Repairing of ABB Make 220 KW, 6600 V AC Squirrel Cage HT Motor of Turamdih Mill
Sl. No.
Item Description
1
Complete Rewinding of Stator core for 220 KW, 1487 RPM, 6600V, 3-Phase, Frame: 355L, ABB Make Squirrel Cage HT Induction Motor. This shall include Dismantling of motor, Removal of all coils from stator, Repairing of all the damaged slots and lamination in the affected portion, Ring Flux test of Stator core to identify any hot spot, Rewinding and remoulding all the damaged stator coils, Replacement of all wedges, copper bars etc. including cleaning, varnishing, backing etc. and all jobs as required. Hi-Pot test of individual coils as well as stator etc.
2
Complete Reapairing of Rotor for above HT Motor. This shall include disassembling of old bearings from rotor shaft, thorough cleaning, balancing of rotor using counter weights, brazing of caps joints (if required) and all jobs as required. Supply of DE and NDE Bearings (Make: SKF only) and Refixing of Bearings in the Rotor shaft, Dynamic balancing of the rotor. Assembly of Motor, Painting of the whole motor etc. and all other jobs required to make the rotor and stator ready for successful motor operation.
3
Testing of 220 KW, 6600 V AC Squirrel Cage HT Motor at the Contractor\"s Workshop after rewinding and repairing job. This includes Routine and Type Tests for the newly rewounded Stator winding and Original Certificates shall be submitted in triplicate to UCIL. This also includes supply and fixing of new HT bushings, insulators, terminal studs etc. for the HT motor in place of damaged parts if required.
4
To and Fro Transportation Cost of the 220 KW 6600 V AC HT Motor including Transit Insurance and Freight to be borne by the Contractor on F.O.R. Turamdih basis
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