Uttar Pradesh Power Transmission Corporation Limited Tender

Details of Work.

Repairing and Overhauling/ Servicing of 110 Volts Battery chargers ( 01 Nos. 110 V HBL (200 AH Capacity) at 132 KV S/S ATTARA and 02 Nos. Chloride Make Battery charger ( 500 AH Capacity each) at 220 KV S/S PAHADI . The work will include-(a) General cleaning outside and inside of the battery charger for the removal of dirt & dust using cleaner.(b) Checking of all coils, contactors, Filters, PCB Components & alarms and replacement if found defective.(c) Checking of all indication lamps and replacement of defective ones.(d) Checking & tightening of all the terminal connections.(e) Testing of charger operation Float& Boost mode as well as emergency mode. (f) Check the condition of rotary switches, push buttons. Cleaning & attending them for minor repairs ( replacement if found defective). The terminals of the rotary switch must be tightened. (g) Check all the fuses and replace with new one if found defective.

Repairing and Overhauling & Servicing of 33 KV VCB at 132 KV S/S Atarra Under ETD Banda. Work consist of : (a) Checking & Adjustment of Snatch gap travel of drive Insulators rod and tie rod of each Pole.(b) Replacement of all damaged and defective parts closing latch assembly, trip latch, close coil etc and its proper adjustment. Cleaning & greasing.(c) Oiling and Greasing of CRANK gear by openng of lock, circlip etc. (d) Dismentling of all pole linkage, pins and rod assembly, cleaning, greasing and its proper adjustment. (e) Check statisfactory close/trip operation of the breaker both by local remote.(f) Check close/trip timing by digital timer (g) Repairing of mechanism for solving the mechnical problem.. After Overhauling of VCB following test to be carried out. (i) Opening & Closing time of breaker of each Pole (ii) carring of contact resistance measurement of each Pole. (iii) Checking of Megger value of breaker Pole.