OVERHAULING OF CGL MAKE 145 KV SF-06 CIRCUIT BREAKER INSTALLED AT 20 MVAT T/F BAY AT 132 KV S/S KAYAMGANJ AND OVER HAULING OF COMPRESSOR INSTALLED AT 145 KV SF-6 C.B. OF 63 MVA T/F-II AT 132 KV S/S FATEHGARH UNDER ETD-FATEHGARH

Amount

Overhauling of CGL make 145 KV SF-6 Circuit Breaker. The job includes overhauling of complete mechanism assembly including opening of control valve assembly, holding latch anti-pumping pin, opening and cleaning of peneumatic system, cylender shock, absorber etc. cleaning & greasing of all these parts, opening of reservoir, checking of electrical connection & tightening them rectification of air leakage problem through NRV & safety valve. Replacement of consumable spares as roller D valve seat 'O' ring P-80, 'O' ring P-18, "O" ring P-7 etc and other damaged rings if necessary, also O ring of 6 mm and 12 mm gas pipe assembly of the mechanism. satisfactorily operation of breaker from local & remote of the following feeder at 132 KV S/S Kayamganj

132 KV Circuit Breaker type 120 SSM, 32A make 1995 of 20 MVA T/F Bay.

Complete dismantling of ELGI make compressor installed at 145 KV SF-6 circuit breaker of 63 MVA T/F-II at 132 KV S/S Fatehgarh and their thorough overhauling by way of cleaning and relpacing all gaskets (from manufacturer tune kit), draining of old lubricating oil, cleaning of reservoir, filling of new lubricating oil of suitable grade, assembling the compressor after complete overhauling and commissioning the same including replacement of worn out motor drive belt and filling up lubricating oil in compressor reservoir with SAE-40 grade lubricating oil includes oiling and greasing in mechanism & motor

SWITCHGEAR AND TRANSFORMER CARE CENTRE

M/S DHIRENDRA SINGH