一起10 kV电缆短路故障计算与分析

Calculation and Analysis of a 10 kV Cable Short Circuit Fault

介绍了一起典型的10 kV电缆中间头短路故障现象,从故障录波信息中对故障的发生经过进行了详细的分析。计算了短路电流,分析了继电保护装置的动作可靠性,针对事故发生原因给出了建议和措施。

This paper introduces a typical10kV cable middle head short circuit fault,which was analyzed in detail from the fault recorder information.The short circuit current was calculated and the reliability of the relay protection device analyzed.Suggestions and measures were provided based on the causes of the accident.