摘要
从金属氧化物避雷器带电检测的方法和原理出发,分析了阻性电流带电检测对避雷器进行故障诊断的有效性。结合利用带电检测手段发现的设备故障案例,通过停电试验和解体分析证实了避雷器故障的原因是密封不良造成氧化锌阀片进水受潮。验证了带电检测在避雷器绝缘诊断中的有效性,同时提出了避雷器状态检测应注意的问题。
This paper analyzes effectiveness of the resistive current live test for MOA （Metal Oxide Arrester） on the basis of live test methods and principles of MOA. In combination with equipment failure found by live detection, It is confirmed that the cause of arrester failure is caused by moisture from poor sealing of MOA valve by outage test and disintegration analysis;validity of the detection of charged MOA insulation diagnosis is verified. Meanwhile, the paper proposes precautions in status detection of MOA in the future.
出处
《浙江电力》
2015年第6期13-15,共3页
Zhejiang Electric Power
