CAJ | 학술논문

介绍了一起由于变压器低压套管末屏开路缺陷造成的220kV变压器现场局部放电量超标故障,分析了套管末屏开路对现场局部放电测量的影响,总结了此类影响的基本特征。对变压器现场试验时排除此类缺陷、保证电力设备安全稳定运行具有一定的借鉴意义。
개소료일기유우변압기저압투관말병개로결함조성적220kV변압기현장국부방전량초표고장,분석료투관말병개로대현장국부방전측량적영향,총결료차류영향적기본특정。대변압기현장시험시배제차류결함、보증전력설비안전은정운행구유일정적차감의의。
A case of on-site excessive partial discharge of a 220kV transformer due to the fault of bushing tap is introduced.The effect of open circuit of bushing tap on the partial discharge test is analyzed.The basic characteristic of this kind of default is concluded,which is important for the suppression of this kind of fault and to ensure the safe and stable operation of power equipment in the future.