tender for availing oem supervisory service for bushing gasket replacement of bhel make 220kv station transformer-a and 21 kv uats along with recommended spare for power transformer installed at 1x500 mw sgtps, mppgcl, birsinghpur. , generating transformer 200 mva, 21/400kv serial no: 6006195/97/98 yom-2006 , magnetic oil level gauge (molg) [complete details mentioned under tender schedule] , bellow pipe (for connecting to radiator to oil pump)[complete details mentioned under tender schedule] , inter connecting transformer 167mva, 400/220kv serial no.- 6006184/85/87 yom-2005 , paint shed for outer surface of power transformer type- ral 7035 [complete details mentioned under tender schedule] , oil surge relay (osr) for oltc [complete details are mentioned under tender schedule.] , unit auxiliary transformer 25 mva serial no.-6006166/67 yom-2004 , oil surge relay (osr) for oltc , work portion , bhel supervisory/expert services for assistance in hv/lv bushing gasket replacement of bhel make 220kv station transformer-a and 21 kv uats at 1x500 mw sgtps birsinghpur. .