In our plant has been decided (because of bad design) to replace fuse-vacuum contactor protection scheme for a motor with breaker protection. The motor is 5MW, 11kV. For this purpose an entire switchboard will be changed.
The existing motor protection relays will be re-used. One of the relays...
Hello to all! I’m very glad that I discovered this excellent forum.
I have the following issue for you. I’m a maintenance electrical engineer in a plant with several HV motors 11kV/ 5.3 Mw electrical motors. The motors are protected by IMM 7960, multifunction relay (CEE relays made - UK). At...
