摘要
通过对一起因放电计数监视器异常的金属氧化物避雷器进行解剖,发现内部有明显渗水痕迹。分析了M O A的结构和工作原理,对M O A出现故障的原因及故障分析方法进行了总结。指出密封材料的稳定性是衡量M O A的一项重要指标。
A metal oxide arrester(MOA) which monitor discharge count was abnormal was dissected and found damp in the interior.Aiming at the phenomena,structure and theory of the MOA were analyzed,the cause of the malfunction and fault analysis were summarized.A conclusion was drawn that the stability of sealing materials was an important indicators of the MOA.
出处
《现代建筑电气》
2010年第4期58-60,共3页
Modern Architecture Electric
