repairing and overhauling of 5 nos.11kv grade, different type and make of controlling switchgears (a) 11kv, 400a, ocb, mei make sl no. 87047 for primary controlling of 3mva, 11/3.3kv, a. yule make transformer (b) 11kv, vcb, yule make sl no. 7112,secondary control of 3mva,33/11kv, marsons make transformer (c)11kv, 400a, ocb mei make sl no. 87048 for secondary controlling of 3.15mva, 33/11kv, kanohar make (d) 11kv,vcb, yule make sl no. 1525 for bokaro feeder (e) 11kv,630a, pce make sl no. hmv/2004/57 for controlling of iwsp, installed at mrss of bandk area. .
