Can anybody tell me how to assign one of output LEDs for GE 469 ,745,750 relay to ABB 7.2KV breaker Rack-in Contact?i want to be able to see if breaker Racked in properly or not. some of output LEDs are already used for different purposes such as short circuit and ground fault protection.
We have got couple of VFD controller for our Cooling fans, fans are 600V motors, when we run them locally (bypassing the VFD) the voltage and current is normal (600V and 90Amps) but whenever we use our VFDs we are getting 480V and 120Amps therefore the controller gets hot, some times it causes...
One of Our Fast grounding disconnects(ABB ELK-EB14)in our GIS was tried to be operated while it was in Lock position therfore the mechanisim inside is jammed in close position , we opened up the front cover and released the locked mechanisim and open the disconnect manually .is there any...
We have a Heat trace Panel in our plant ,there 16 Digitrace 920 Controller inside the panel which are connected in series , some of those controller are blinking (showing alarm) but whenever i check the alarm history nothing coming up !! the problem is that blinking causes our DSC to get alarm...
