procurement for replacement of different types of chinese make numerical relays and electro static relays for stage i 6 point 6 kv ht switch gear system by indigenous numerical relays and electro static relays under testing department , procurement for replacement of different types of chinese make numerical relays and electro static relays for stage-1, 6.6kv ht switch gear system by indigenous numerical relays and electro static relays under testing department, sgtpp through capex: 2024-25 , relay,motor protection,numerical auxiliary supply: 220-250v dc, ct input: 1a/5a (software selectable) having native iec 61850 protocol. , relay, numerical, motor diff. protection low & high impedance differential protection, auxiliary supply: 48-240 v dc, 6 ct inputs, 1a/5a (selectable), having native iec 61 850 protocol. , relay,non directional,numerical for tie incomer, outgoing& transformer feeder non-directional phase overcurent & earth fault with 4 ct inputs 1a/5a (3 inputs for phase current & 1 input for earth fault), 3 pt inputs, aux supply: 48-240 vd c having native iec 61850 with edition-2 , numerical relay, undervoltage, # 3 stage undervoltage (27) protection with dt & idmt characteristics, aux supply:48-240 vdc, for bus& feeder pt. , relay,tripping relay ( high speed tripping relay with hand reset provision, flush mounted, high burden type, auxiliary supply: 220v dc ± 10% ) , relay,bistable relay ( electrical reset, low burden type, auxiliary supply: 220v dc ± 10% ) => limited