procurement of spares of ece make ocb type hop 5 , earth leakage relay with current display system , idmt relay complete set with 2 over current relay & 1 earth fault/high set . , power pack unit , isolating spout assy . with nylon shroud . , auxiliary plug & socket assembly . , copper connection r phase . , copper connection y phase . , copper connection b phase . , jaw contact assy . set . , partition plate assy . , operating shutter assy . , ocb raising & lowering handle . , operating mechanisam complete set . , ece make epoxy potential transformer heavy duty 3 , 3 . 3kv/110 , pt connector set . , trolley complete with all accessories suitable for 3 . 3 kv , bus bar connection r/y/b . , right angle cable end box with support plate . , shunt trip coil assy . , epoxy resin cast current transformer ratio 300/150a . , high speed tripping relay . , elr core balance current transformer . , assorted hardware . , under & over voltage relay . , cable entry box . , n . v . auxiliary switch . , instrument chamber box complete with internal wiring & accessories .