站用400 V交流系统绝缘故障类型及危害分析

Insulation Fault Types and Hazard Analysis of Station 400 V AC System

交流供电系统是应用最为广泛的供电系统,供电系统设备种类众多,系统覆盖面积辽阔,所以交流系统故障发生在所难免。各种交流系统故障监测与保护均有反措,本文针对站用400 V交流供电系统分析,总结系统绝缘故障类型、分析故障危害,提出站用400 V交流供电系统在线监测需求与想法。

AC power supply system is the most widely used power supply system.There are many kinds of power supply system equipment,and the system covers a vast area,so AC system failure is inevitable.All kinds of AC system fault monitoring and protection have counter measures.This paper analyzes the station 400 V AC power supply system,summarizes the types of system insulation fault,analyzes the fault hazards,and puts forward the requirements and ideas of on-line monitoring of station 400 V AC power supply system.