63/MID/AN

Replacement of worn-out copper LT conductor of 2.25m long, 185 mm square single core multi strand flexible copper cable from segregator to slip ring assembly having required voltage and current carrying capacity as per original cables. One side of the cables shall have threaded brass adopter to be locked with the motor slip ring and L type copper thimble at the other end to be engaged with motor segregator. Both the fittings shall be properly fixed and soldered by way of brazing to the cable leads to avoid electric leakage through them .Fitting the cable leads to slip ring assembly from one end and to three phase segregator on other end. The job includes dismantling and removing of old worn out conductor copper leads installed on the motors at LIS Ranjan. Complete job in all respects.

Replacement of the damaged/ heated 3C x300 mm2 XLPE HT outdoor Cable ( approx 10 mtr ) from the bye pass oil switch and then providing and fitting of new 3C x300 mm2 XLPE HT outdoor Cable conforming to relevant IS standards, fitting of aluminum thimbles , securing connections with new set of nuts and bolts. Repair to Bye pass arrangement of 6.6 Kv, 2.5 MVA AVR Control unit by way of repairs to the Input , Output and Byepass isolating unit, Dismantling of damaged/ busted 04 isolators from the Byepass oil switches and then providing and fitting of new 04 no. isolators of 12 kV, 630A Normal & breaking capacity and cleaning of all the insulators and cleaning of oil tanks, after that providing and filling of fresh new transformer oil after de-moisturizing (approx. 240 ltrs.), making of all the connection of power cables. Complete job involves the cost of material, labour and transportation of men & machinery to site etc.

Replacement of damaged and worn out Carbon Brushes ( as per sample ) by way of Providing / fitting of new standard make and grade carbon brushes set to slip ring assembly of 650 HP BHEL make solid shaft 6.6 KV, 485 KW HT motors including commissioning, cost of material and labor charges. Complete job in all respect

Disconnecting of LT copper conductors from the carbon brushes holder brackets and then dismantling of damaged carbon brushes holder brackets from the slip ring assembly of the 650 hp motor. And then Providing and fitting of new carbon brushes holders bracket assembly to slip ring assembly ( as per sample ) of 650 HP BHEL make solid shaft 6.6 KV HT motors. Complete job with cost of material, labour charges, carriage of material to sight etc.

BEE AAR ENTERPRISES

G S ENGINEERING WORKS