procurement of 400/220kv 500mva power transformers 400 kv and 220 kv reactors lot_1-procurement of 4 nos. 400/220kv 500mva power transformers. lot ii- procurement of 2 nos. 400kv 125mvar bus type reactor and 420 kv, 3x50 mvar switchable line reactors and 1 no. 1x25 mvar, 220 kv bus reactor , main material/ items (transformer) , 400/220/33 kv, 500 mva autotransformer with all accessories (excluding transformer oil) as per technical specification , insulating oil for 500 mva 400/220/33 kv auto transformer with 10% spare oil , digital rtcc panel consisting of digital rtcc relay as per technical specification for transformers at s-i (1) above , optical temprature sensors alongwith measuring units alongwith all associated accessories/ fittings as per specification requirements for installation on all the auto transformers at si- (1) above. , on-line dissolved gas and moisture analyzer as per specification , mandatory spares , local & remote wti complete with sensing device & contacts , oil temperature indicator complete with contacts & sensing device , bushing (hv,iv & lv)(one no. each type) , pressure relief device , buchholz relay complete with assembly , magnetic oil level gauge , oil surge relay