bids are invited for 3 phase scr controller for constant voltage current card - 3 phase scr controller for constant voltage/current card rating 220v (cv/cc) part no cpc1a/b , high voltage and phase fail phase sequence reverse card rating 20va - high voltage & phase fail/ phase sequence reverse card, rating 20va, 456v/18-0-18v part no. hv & pf/psr card , charger dc under voltage circuit of solid state sensing type. rating. aux. supply 12v dc,actuating voltage 242v, resetting voltage 245v - charger dc under voltage circuit of solid statesensing type. rating. aux. supply 12v dc,actuating voltage 242v, resetting voltage 245v part no. dc u/v1 a/b. , load over voltage circuit of solid state sensing type. rating. aux. supply 12v dc rating actuating voltage 248v, resetting voltage 245v - load over voltage circuit of solid state sensing type. rating. aux. supply 12v dc, rating actuating voltage 248v, resetting voltage 245v part no. dc o/v1 a/b. , battery dc under voltage circuit of solid state sensing type.rating. aux supply 12v dc rating actuating voltage 198v resetting voltage 220v - battery dc under voltage circuit of solid statesensing type.rating. aux supply 12v dc, rating actuating voltage 198v resetting voltage 220v part no. bdc u/v1 , battery dc over voltage circuit of solid state sensing type rating aux. supply 12v dc actuating voltage 300v resetting voltage 296v - battery dc over voltage circuit of solid state sensing type rating aux supply 12v dc, actuating voltage 300v resetting voltage 296v part no.bdc o/v1. , load dc under voltage circuit of solid state sensing type rating aux supply 12v dc actuating voltage 198v resetting voltage 220v - load dc under voltage circuit of solid state sensing type.rating. aux supply 12v dc,actuating voltage 198v resetting voltage 220v part no. ldc u/v1 , load over voltage circuit of solid state sensing type with aux. supply 12v dc actuating voltage 248v resetting voltage 245v - load over voltage circuit of solid state sensing type