电流互感器故障分析及诊断

Fault Analysis and Diagnosis on Current Transformer

介绍了一起电流互感器故障的现场情况,分析诊断出了故障发生的原因为生产制造过程中,人工操作误差导致二次绕组间绝缘裕度过小,长时间运行后发生绝缘劣化击穿,并给出了预防此类故障的建议。

The field situation of a current transformer fault is introduced,and the causes of the fault are analyzed and diagnosed such that the insulation margin between the secondary windings is too small due to manual operation errors in the production and manufacturing process,and the insulation degradation breakdown might occur upon a long period of operation.Suggestions to prevent such faults are given so as to ensure the safe and stable operation of the substation.