| 电力电缆短路故障时通信线上感应电压的计算 |
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| 引用本文： | 焦超群,李琳,赵志斌,崔翔.电力电缆短路故障时通信线上感应电压的计算[J].华北电力大学学报,2003,30(2):25-29. |
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| 作者姓名： | 焦超群 李琳 赵志斌 崔翔 |
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| 作者单位： | 华北电力大学,电力工程系,河北,保定,071003 |
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| 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。
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| 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 |
| 文章编号： | 1007-2691(2003)02-0025-05 |
| 修稿时间： | 2002年4月1日 |
Calculation of induced voltage on communication line in case of a short circuit fault on transmission line |
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| JIAO Chao-qun,LI Lin,ZHAO Zhi-bin,CUI Xiang.Calculation of induced voltage on communication line in case of a short circuit fault on transmission line[J].Journal of North China Electric Power University,2003,30(2):25-29. |
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| Authors: | JIAO Chao-qun LI Lin ZHAO Zhi-bin CUI Xiang |
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| Abstract: | 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. |
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| Keywords: | transmission line short-circuit fault communication line buried metal pipes induced electromotive force double-sided elimination method |
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