Title :
Safety and ground fault protection in electrical systems
Author :
Yu, Luke ; Chow, Mark ; Bowen, Jay
Author_Institution :
Parsons Corp., USA
Abstract :
Power system safety is heavily related to electrical system grounding, and ground fault current that directly impacts human safety. Protective device characteristics (such as circuit breakers, relays and fuses) are examined and then related to ground fault current levels and trip times. Recommendations are given to improve the traditional grounding concepts. Finally, the design guidelines on safety are summarized, including the transfer voltage problems
Keywords :
earthing; fault currents; power system protection; safety; switchgear; circuit breakers; design guidelines; electrical system grounding; fuses; ground fault current; ground fault protection; grounding recommendations; human safety; power system safety; relays; transfer voltage problems; trip times; Circuit breakers; Circuit faults; Electrical safety; Fault currents; Grounding; Humans; Power system faults; Power system protection; Power system relaying; Protective relaying;
Journal_Title :
Industry Applications Magazine, IEEE
DOI :
10.1109/2943.655658
