110 kV transformer neutral point in Xing'an Substation is designed according to non-uniform insulation,whose arrester selection is essential to the safety operation of transformer.The author analyses the neutral point arrester in Xing'an Substation,points out the wrong selection of arrester and gives the replacement proposal.%兴安变电所110kV变压器中性点是按分级绝缘设计的,其中性点避雷器选型尤为重要,它的保护特性直接影响变压器的安全运行,本文对兴安变中性点避雷器进行了分析,发现避雷器选型错误,提出更换建议。
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