Abstract：For a 110kV line bay configured with Siemens 3AP1FG circuit breaker for primary equipment and SAC PSL621C protection device for secondary equipment, there is a situation in which neither the local mechanism anti-bouncing nor the remote operation box anti-bouncing function is configured. The working principle and verification method of the anti-bouncing circuit are introduced in detail. Through the analysis of the action sequence of the anti-bouncing relay, it is found that the position of breaker auxiliary contact transfers faster than the action of the anti-bouncing relay makes the function of the local anti-bouncing lost, and spring energy storage contact is accessed to the closing circuit makes the function of the remote anti-bouncing lost. According to the standards, the protection operation box anti-bouncing function is removed and the mechanism control box anti-bouncing function is rectified. The correction of the solution is verified through test.
王海波. 断路器分位防跳失败原因分析与整改措施[J]. 电气技术, 2022, 23(9): 81-85.
WANG Haibo. Cause analysis and rectification measures for the failure of anti-bouncing of circuit breaker. Electrical Engineering, 2022, 23(9): 81-85.
2022, Vol. 23 
