Title :
Analysis on the false action and operation criteria for the generator circuit breaker failure protection
Author :
Wu Pengyue ; Wang TuanJie ; Han WeiWei ; Chen, Chen
Author_Institution :
Thermal Power Res. Inst., Xi´´an, China
Abstract :
According to analyzing an accident of generator circuit breaker (GCB) failure protection false action, this essay put forward that the current criteria of GCB failure protection would cause the protection rejecting act. The reason was analyzed that the current criteria of GCB failure protection could not start in single-phase grounding and phase fault of small current grounding system. It was suggested that using current and additional voltage to improve the criteria of GCB failure protection.
Keywords :
circuit breakers; earthing; failure analysis; machine protection; GCB failure protection; false action analysis; generator circuit breaker failure protection accident; operation criteria; protection rejecting act; single-phase grounding fault; small current grounding system; Circuit breakers; Circuit faults; Earth; Generators; Grounding; Stators; Breaker failure; GCB; false action; protection criteria; small current grounding;
Conference_Titel :
Advanced Power System Automation and Protection (APAP), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-9622-8
DOI :
10.1109/APAP.2011.6180410
