摘要
利用“电力系统接地与电磁干扰分析”软件包(CDEGS),计算了一条模拟的两变电站之间电力电缆发生短路故障时,电力电缆附近通信线上的感应电压(纵向感应电动势),同时考虑了地下金属管道的影响。分析了电力电缆、通信线和金属管道不同布局时,通信线和金属管道上的纵向感应电动势的差别及其原因,另外还考虑了变电站接地电阻对它们的影响。
The induced electromotive force on the communication line transmission line is calculated by virtue of the CDEG soft when short circuit fault occurs on transmission line between two substations. The buried metal pipes adjacent to the transmission line are taken into account. The causes and effects of the different distribution of the induced electromotive force on the communication line and the buried metal pipes are analyzed when distributions among communication line, the transmission line and the buried metal pipes is different. The influence of grounding resistance of the substation on the induced electromotive force on the communication line is also analyzed.
出处
《华北电力大学学报（自然科学版）》
CAS
北大核心
2003年第2期25-29,共5页
Journal of North China Electric Power University：Natural Science Edition
关键词
电力电缆
短路故障
通信线
金属管道
纵向感应电动势
双侧消去法
transmission line
short-circuit fault
communication line
buried metal pipes
induced electromotive force
double-sided elimination method
