牛　犇（中国航空规划设计研究总院有限公司，北京市 100120）

Analysis on Insulation Ablation Fault of Conductors in Low⁃voltage Compensation Cabinets

NIU Ben(China Aviation Planning and Design Institute(Group)Co.,Ltd.,Beijing 100120，China)

Abstract：The investigation process of a conductor insulation ablation fault in a low⁃voltage compensation cabinet is introduced,and the process of eliminating individual cases through their appearances and finding out the causes through measurement and destructive operation is reproduced.

Key words：low⁃voltage compensation cabinet;reactor;capacitor;harmonic wave;aluminum core winding;copper core winding;conductor insulation ablation;temperature rise

摘　要：介绍一起低压补偿柜内导线绝缘烧蚀故障的调查经过，再现透过表象排除个案、通过测量和破坏性操作找出故障原因的过程。

关键词：低压补偿柜；电抗器；电容器；谐波；铝芯绕组；铜芯绕组；导线绝缘烧蚀；温升

中图分类号：TU852　　　　　               文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2020.06.003