高压断路器跳闸控制回路改进

摘要

Principle and connection of the operation cabinet of the breaker Model LY-33 are introduced.Cause, result and handling course of the occurrence of the power failure of the first control circuit are analyzed, solution and measures are provided as well.%介绍了LY－33型断路器操作箱原理与接线，分析了第一路控制电源失电事件发生原因、后果及处理过程，提出了解决方法与措施。