Analysis and Treatment Measures of Fault-free Tripping of Circuit Breaker in 10 kV Distribution Station
Fault-free tripping is an undesired tripping of a circuit breaker when there encounters no fault in the primary system.It is difficult to analyze the cause of this type of tripping.This paper systematically classifies the potential hazards or causes that may lead to fault-free tripping,which are mainly divided into factors such as the circuit breaker mechanical mechanism problems,the secondary wiring problem,the logic problem of the protection device,and the quality of the DC power supply.An undesired tripping event caused by induced voltage and the corresponding handling measures adopted,are specifically analyzed.
fault-free trippingsecondary wiringinduced voltage
NETL
NSTL
万方数据
