Title :
Ground-fault protection and the problem of nuisance tripping of critical feeders
Author :
Nash, Hugh O., Jr.
Author_Institution :
Smith Seckman Reid Inc., Nashville, TN, USA
Abstract :
An attempt is made to look at National Electrical Code (ANSI/NFPA 70-1987) ground-fault protection (GEP) requirements in light of various risk factors. The author evaluates the risk factors related to arcing ground-faults and the possibility of nuisance tripping on critical feeders. The adequacy of state-of-the-art ground-fault protection equipment is examined. Emphasis is on applications to process industries and health-care facilities
Keywords :
arcs (electric); earthing; electrical faults; standards; ANSI/NFPA 70-1987; GEP; National Electrical Code; arcing ground-faults; critical feeder nuisance tripping; ground-fault protection; health-care facilities; process industries; Circuit faults; Current limiters; Fuses; Hospitals; Impedance; Manufacturing; Medical services; National electric code; Protection; Switches;
Conference_Titel :
Industrial and Commercial Power Systems Technical Conference, 1988. Conference Record, Papers Presented at the 1988 Annual Meeting.
Conference_Location :
Baltimore, MD
DOI :
10.1109/ICPS.1988.10973
