Title :
Solidly grounded low voltage source contribution to device interrupting duty
Author :
Simpson, Ronald H.
Abstract :
Application of low voltage circuit breakers for interrupting duty requires consideration of motor contributions, power factor of the fault current, and ground faults from solidly grounded sources. Under certain specific conditions ground fault duty can exceed the three-phase bolted fault value and over duty the equipment.
Keywords :
circuit breakers; fault currents; device interrupting duty; fault current; ground faults; low-voltage circuit breakers; power factor; solidly grounded sources; three-phase bolted fault; Circuit breakers; Circuit faults; Copper; Fault currents; Low voltage; Reactive power; Resistance; ground fault current calculations; low voltage circuit breaker interrupting duty; motor contribution to fault current; power factor of fault current;
Conference_Titel :
Pulp and Paper Industry Technical Conference (PPIC), Conference Record of 2010 Annual
Conference_Location :
San Antonio, TX
Print_ISBN :
978-1-4244-5676-5
DOI :
10.1109/PAPCON.2010.5556502
