Replacement of damaged / wornout 3 phase DOL starter for submersible motor at pumping station Dalsar and replacement of damaged / wornout components of 100 HP motor at Kaghote stage-0.

Amount

Replacement of damaged / wornout 3 phase DOL starter for 7.5 HP submersible motor at pumping station Dalsar by way of disconnecting main power, extraction of damaged starter and thereafter providing and fitting of new DOL starter. The DOL starter provided should work normally for the maximum current range of installed 7.5 HP submersible motor and must have over load protection, single phase preventer, alongwith system for measuring and indication in the form of voltmeter and amperemeter fitted / attached to the starter. The single phase preventer should work in a way to prevent running of motor and trip off DOL starter in shortest possible time if any of phase fails so as to prevent damage to motor. The charges involve cost of material, labour, hiring charges tools and tackles etc. Rebate, if any, should be quoted separately.

Replacement of damaged / worn out components of 100 HP motor installed at pumping station Kaghote stage-0. The job involves dismantling of motor by opening the side covers, extraction of damaged bearings and damaged cooling fan. Job covers fabrication of cooling fan as per old sample in the workshop by way of preparation of mould, casting of aluminium fan, machining it by way of boring to the required inner dia of 70mm in incremental steps, making key way. Subsequently fitment of cooling fan in the motor alongwith providing and fitting of new bearing 6316-2nos. one each at DE and NDE. Closing the end covers, restoring electrical connections and testing the system on full load. Complete job includes cost of material, labour charges, hiring charges of tools and tackles etc. Rebate, if any, should be quoted separately.

GANPATI ELECTRICAL AND MECHANICAL WORKS

N B Engineering and Electric Works