断路器PT二次回路接线的带电作业分析

Analysis of Live Working on the Secondary Circuit Wiring of Circuit Breaker PT

阐述PT接线工作原理,设计了一种在带电作业条件下可以快速完成PT二次接线更换的工具。该工具两头设计成带航插的端子箱,在PT二次回路出现故障时不停电,可以进行消缺处理,而且能够快速给控制器供电。

This paper expounds the working principle of PT wiring and designs a tool that can quickly complete the replacement of PT secondary wiring under live working conditions.The tool is designed as a terminal box with aviation plugs at both ends,which does not cut off power in the event of a fault in the PT secondary circuit,can perform defect elimination processing,and can quickly supply power to the controller.