电力系统二次回路故障查找及处理分析

Fault Finding and Processing Analysis of Secondary Circuit in Power System

二次回路是电力系统最重要的组成部分。能否迅速查找和处理二次回路的故障,直接关系到电力系统的正常运行。目前,变电运行人员在二次回路识图、故障查找和处理方面的能力不容乐观,大多无法根据故障现象结合二次回路图纸准确定位故障设备、分析原因、查明故障点并处理好故障,不能达到"三熟三能"的要求[2]。因此,基于35 kV馈线断路器控制回路,将重点介绍电力系统二次回路故障查找和处理的一些常用方法。

The secondary circuit is the most important part of the power system. Whether the fault of secondary circuit can be found and dealt with quickly is directly related to the normal operation of power system. At present,the ability of substation operators in secondary circuit diagram recognition,fault detection and treatment is not optimistic. Most of them can not accurately locate the faulty equipment,analyze the reasons,identify the fault points and handle the faults according to the fault phenomena and secondary circuit drawings,and cannot meet the requirements of "three skilled and three competent".Therefore,based on the control circuit of 35 kV feeder circuit breaker,some common methods for fault detection and treatment of secondary circuit in power system will be introduced in detail.