电力变压器铁心绝缘故障的诊断及处理

ANALYSIS AND TREATMENT FOR CORE INSULATION FAILURE IN POWER TRANSFORMER

变压器铁心绝缘故障在变压器故障中占有相当大的比例。笔者对变压器铁心接地原理、铁心接地故障的诊断,采用直流冲击放电法处理240MVA变压器铁心接地故障实例作了介绍。

Core insulation failure in power transformer accounts for quite high proportion among transformer faults.This article introduces a case of treating240MVA power transformer's core insulation failure by DC discharge method.