CE/MTPSI/SEES/EMII/OT11/21-22

Amount

6.6 KV STATOR REWINDING (Resin rich technology): Charges for dismantling of motor, threading out the rotor, removing the wedges, Debrazing the connections for releasing the old coils, releasing all the 60 Nos. coils from the stator core pack, conducting hot spot test in stator core and placing the new coils and inserting the wedges back, replacement of all 12 Nos. RTD’s, making proper connection after feeding the new coils, brazing and insulating the links and take off leads, applying finishing varnishing to the overhang portion and drying work, cleaning the rotor, checking the rotor bars, checking the shaft trueness, varnishing and ovening, replacement of DE & NDE bearings, assembling of motor, conducting relevant tests on the motor and painting of the motor with two coats of smoke grey enamel paint. (Both DE & NDE) (new bearings will be supplied by TANGEDCO) (1 No for one motor)

FABRICATION OF NEW COILS :Charges for fabrication and supply of new stator coils using new class ‘F’ enamelled polymica covered electrolytic grade rectangular copper conductors, insulating the slot portion of the coil with semicatherm and insulating the overhang coil with semicaflex and fibre glass tape using epoxy as binding cement and conducting required tests. (Retrieved coils shall be retained by the contractor)

DYNAMIC BALANCING :Charges for dynamic balancing the rotor to grade G 2.5 at rated RPM

STATOR CORE RESTACKING : Charges for removing the stator core pack from the stator body, complete dismantling the stator core stampings, removing the old burnt core palt varnishes by chemical treatment, cleaning , removing the surface kinks, revarnishing with core plate varnish, restacking the stampings, locking and repositioning the core pack in to the stator body by hydraulic press and conducting the flux loop test to ascertain the restacked core healthiness and conducting the hot spot test.(1 No for one motor)

Charges towards providing sleeve for DE side housing bearing seating area. ( If required).

Charges towards replacement of NDE side housing bearing seating area. ( If required).

Charges towards replacement of NDE side housing made out of IS 2062. ( If required).

To and fro transport charges

Less credit: Cost of Saleable copper scrap,(- LESS )