overcurrent and undervoltage relay coordination
overcurrent and undervoltage relay coordination
(OP)
Greetings:
Wondering if anyone can share their thoughts on (4.16kV/480V) overcurrent and undervoltage relay coordination. A range of fault currents (three-phase,line-to-ground,line-to-line,line-line-ground) and corresponding post-fault bus voltages could be calculated and compared to the UV dropout voltage. Operating time between UV and OC relays is compared. Operating times of 4.16kV and 480V is checked for selectivity. Thanks for your thoughts.
Wondering if anyone can share their thoughts on (4.16kV/480V) overcurrent and undervoltage relay coordination. A range of fault currents (three-phase,line-to-ground,line-to-line,line-line-ground) and corresponding post-fault bus voltages could be calculated and compared to the UV dropout voltage. Operating time between UV and OC relays is compared. Operating times of 4.16kV and 480V is checked for selectivity. Thanks for your thoughts.






RE: overcurrent and undervoltage relay coordination
RE: overcurrent and undervoltage relay coordination
RE: overcurrent and undervoltage relay coordination