消弧线圈系统故障选线正确率提高的案例分析  

The Analysis on the Improvement of Fault Line Selection Accuracy in Arc Suppresion Coil Grouding System

作　　者：叶杰宏[1] 王一波 

机构地区：[1]广东工业大学自动化学院,广州510090 [2]广东电网佛山南海供电分公司,佛山528200

出　　处：《电气开关》2006年第4期53-56,共4页Electric Switchgear

摘　　要：结合某地区10kV小电流接地系统改造情况,分析了该地区中性点经消弧线圈接地系统故障选线正确率低的原因,然后提出了消弧线圈并联中值电阻的方案,并分析了该方案的选线原理。实际的运行结果表明,该方案能准确、快速地选出故障线路。According to the rebuilding situation of 10kV non-effectively grounded neutral mode in a region, the reason about the accuracy of fault line selection in arc suppresion coil grouding system is analised. Then,a method of arc suppresion coil with parallel resistance is put forward,and the principle of fault line selection in that method is analysed. The test results indicate that the method is able to figure out the fault line quickly and accuratly.

关 键 词：消弧线圈 故障选线 并联中值电阻 小电流接地 

分 类 号：TM475[电气工程—电器]