e-NIT No.19 of 2024-25 dt.18-10-2024

Amount

Providing, fitting and replacement of machinery and equipment parts of slipring assembly of 1500HP 6.6 KV (BHEL make) of unit no 04 by way of disconnecting of all the electrical connections, water lubrication connections then removing slipring assembly from the motor. The job involves extraction of wornout parts of slipring assembly and providing fitting of new parts viz:- a). Carbon brushes ----- 24 nos. b). Brush holders ------08 nos. c). bakellite bushes (2.5 inche x1.5 inch in size) 12 nos. d).Bakellite bushes (1.5 inch x 1.00 inch in size) 12 nos. e). Procelin Insulators----- 24 nos. The job further includes HT insulation of 04 nos slipring rods, providing/ fitting of 185 sq.mm copper single core cable of 1.25mtr length -03 nos after proper crimping of I shaped and L- shaped copper thimbles on each side of wire respectively. Finally complete servicing of slip ring assembly by way of cleaning, brushing and removing carbon deposits and pits with the help of wire brush and emery paper, applying varnish and taking IR value after drying out varnish by making temporary temperature drying up process till IR value is achieved. Installation of slipring assembly on the motor, making all the electric connections of motor including tightening of nuts & bolts properly and then final testing of the motor on no load and then on full load. The job includes cost of material, labour charges and to & fro carriage charges etc. Complete job.(01 Job) Providing, fitting and replacement of electromechanical components of slipring assembly of motor of unit no 06 (Crompton Greaves make.) by way of disconnecting of all the electrical connections, water lubrication connections then removing slipring assembly from the motor. The job involves extraction of wornout parts of slipring assembly and providing fitting of new parts viz:- a). Carbon brushes (50x40x20mm) ----- 18 nos. b). Brackets ------04 sets. The job further includes HT insulation of 02 nos rods, providing/ fitting of 185 sq.mm copper single core cable of 2 feet length each -06 nos after proper crimping of I-shaped copper thimbles on both side of wire respectively. Finally complete servicing of slip ring assembly by way of cleaning, brushing and removing carbon deposits and pits with the help of wire brush and emery paper, applying varnish and taking IR value after drying out varnish by making temporary temperature drying up process till IR value is achieved. Installation of slipring assembly on the motor, making all the electric connections of motor including tightening of nuts & bolts properly and then final testing of the motor on no load and then on full load. The job includes cost of material, fitting and installlation charges and to & fro transportation charges etc. Complete job.(01 Job)

M/S UK MECH AND ELECT ENGG WORKS (BID ID -2210717)

R K ELECTRICAL MECHANICAL ENGINEERING AND FABRICATION WORKS (BID ID -2209803)