35kV复合绝缘氧化锌避雷器缺陷分析及应对措施

Analysis of Defects of 35kV Polymeric Insulating Zinc Oxide Arrester and its Counter-measure

介绍了复合绝缘金属氧化物避雷器的结构和工作原理,以500 kV变电站运行中两起35 kV复合绝缘避雷器故障为例,分析了复合绝缘避雷器故障产生原因,提出了及早发现避雷器缺陷的应对措施。

In this paper,the structure and working principle of polymeric metal oxide surge arrestor were introduced.Taking the defects found in two 35 kV polymeric metal oxide surge arrestor in the 500 kV substation as examples,the reason that caused these defects was analyzed.Counter-measure for defecting and preventing these defects in advance were put forward.