高压断路器控制回路常见问题分析及改进方法

Analysis the Common Problem of High Voltage Breaker Control Circuit and Its Improving Method

断路器是发电厂及变电所重要电气设备之一,是用来接通或断开电路,尤其是在电力系统发生短路故障时,断路器迅速动作将故障点切除,断路器工作性能好坏除了与本身的电气、机械、绝缘等性能有关,还与其控制、保护及二次回路接线是否完善合理有很大关系。文章对变电所电气调试施工中所遇到的断路器控制回路经常出现的问题及原因进行分析,并提出相应的改进方法,这些改进方法在工程实际中经过验证是可行的。

The breaker is the main electrical equipment of power plant and substation, switching-on and switching -open circuit, especially, rapidly removes the fault point while the power system occurs short- circuit fault. The working performance of breaker is not only related to the breaker＇ s electrical, machine and insulation etc. performances, but also related to the reasonable of the control, protect and secondary coil wiring. The paper analyses the common problems of breaker control circuit in substation electric debugging, and puts forward the relevant improving methods, those methods is feasible in practical engineering.