220kV变压器局部放电量超标及其处理措施  

Treatment Measures of Exceeding Partial Discharge in 220 kV Transformer

作　　者：孙磊[1] 聂清海[1] 庄海峰[1] 

机构地区：[1]黄山供电公司,安徽黄山245000

出　　处：《安徽电力》2013年第2期10-13,共4页Anhui Electric Power

摘　　要：电力变压器是电网最重要的高压电气设备之一,同时也是导致电力系统事故频繁发生的大型设备之一,其运行的可靠性直接关系到电力系统的安全与稳定。变压器故障统计分析表明,绝缘故障是影响变压器可靠运行的重要原因之一,而局部放电又是引起变压器绝缘损坏的主要原因。结合现场1台220 kV主变压器绝缘局部放电量超标的生产运行实际,对变压器局放超标进行分析并提出处理方案。Power transformer is one of the most important high-voltage electrical equipments,which also leads to frequent accidents of electric power system.The running reliability is related to the safety and stability of electric power system. Statistics and analysis of transformer faults shows,insulation fault is one of the important reasons which influence the running reliability of transformers.Moreover,partial discharge(PD) is the main reason which causes the insulation damage of transformers.Combined with the scene a set of 220 kV main transformer insulation exceeding partial discharge of the real practical situations,this article will make a comprehensive analysis on the situation of exceeding partial discharge and illustrate the processing schemes.

关 键 词：KV变压器 局部放电 数据超标 分析 处理 

分 类 号：TM41[电气工程—电器] TM855