| Limiting the Arc Over-voltage of 10 kV Grids in Application of Nonlinear Resistance |
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| 作者姓名： | CHEN Xian-lu TIAN Feng-lan XU Wen-qian LIU Yu - gen YUAN Tao |
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| 作者单位： | 1. Key Laboratory of High Voltage Engineering and Electrical New Technology, Ministry of Education, Electrical Engineering College of Chongqing University, Chongqing 400030, China ;2. Guiyangnan Power Supply Bureau, Guizhou Province Electric Power Co, Gu |
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| 摘 要： | The aufhors calculate and analyze the arcing grounding overvoltage of 10 kV power network in case of neutral ungrounded and grounding through nonlinear resistance using EMTP, with a actual 10 kV power network of a substation in Guizhou province as an example. The emulational calculation results show that the grounding method which grounds through nonlinear resisitance has the advantages of the other two methods, can better limit the arcing grounding overvoltage and can not stop the power supply .even one phase is grounded by fault, so it can ensure the security of the power networkg supply . the network neutral grounding through nonlinear resistance needs more deep study and analysis as a new network neutral grounding mehtod.
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| 关 键 词： | vneutral grounding nonlinear resistance arcing grounding overvoltage Volt-Amp. characteristics |
| 收稿时间： | 2006/3/10 0:00:00 |
| 修稿时间： | 2006/3/10 0:00:00 |
Limiting the Arc Over-voltage of 10 kV Grids in Application of Nonlinear Resistance |
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| CHEN Xian-lu,TIAN Feng-lan,XU Wen-qian,LIU Yu - gen,YUAN Tao.Limiting the Arc Over-voltage of 10 kV Grids in Application of Nonlinear Resistance[J].Storage & Process,2006(7):38-40. |
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| Authors: | CHEN Xian-lu TIAN Feng-lan XU Wen-qian LIU Yu - gen YUAN Tao |
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| Institution: | 1. Key Laboratory of High Voltage Engineering and Electrical New Technology, Ministry of Education, Electrical Engineering College of Chongqing University, Chongqing 400030, China ;2. Guiyangnan Power Supply Bureau, Guizhou Province Electric Power Co, Gu |
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| Abstract: | The aufhors calculate and analyze the arcing grounding overvoltage of 10 kV power network in case of neutral ungrounded and grounding through nonlinear resistance using EMTP, with a actual 10 kV power network of a substation in Guizhou province as an example. The emulational calculation results show that the grounding method which grounds through nonlinear resisitance has the advantages of the other two methods, can better limit the arcing grounding overvoltage and can not stop the power supply .even one phase is grounded by fault, so it can ensure the security of the power networkg supply . the network neutral grounding through nonlinear resistance needs more deep study and analysis as a new network neutral grounding mehtod. |
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| Keywords: | vneutral grounding nonlinear resistance arcing grounding overvoltage Volt-Amp characteristics |
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