| N600不正确接线的分析 |
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| 引用本文： | 成小胜,成峰波,成军蒲.N600不正确接线的分析[J].电力学报,2005,20(4):387-389. |
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| 作者姓名： | 成小胜 成峰波 成军蒲 |
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| 作者单位： | 晋城供电分公司,山西,晋城,048000 |
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| 摘 要： | 提出了消除N600多点接地的方法,通过对单相接地故障,零序方向保护拒动造成大面积停电事故的实例分析,得出电压互感器N600多点接地及其保护绕组N600与辅助绕组N600′共用,在电网发生接地短路时可能造成零序方向保护拒动或误动的结论,实践证明方法有效合理。
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| 关 键 词： | TV接线 零序电压 保护拒动 |
| 文章编号： | 1005-6548(2005)04-0387-03 |
| 收稿时间： | 2005-06-08 |
| 修稿时间： | 2005-07-06 |
The Anylasis About N600 Uncorrect Connecting Leads |
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| CHENG Xiao-sheng,CHENG Feng-bo,CHENG Jun-pu.The Anylasis About N600 Uncorrect Connecting Leads[J].Journal of Electric Power,2005,20(4):387-389. |
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| Authors: | CHENG Xiao-sheng CHENG Feng-bo CHENG Jun-pu |
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| Affiliation: | Jincheng Power Supply Sub-Company,Jincheng 048000, China |
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| Abstract: | The means that we gave for preventing N600 from grounding at many points were proved to be available by practice. The apprearance of zero sequence relay uncorrect action when net is in short grounding may cause TV N600 grounding at many points, and cause from that TV relay windings use the same N600 with its subwindings. We draw the conclution by analysing a representative example that when single phase short grounding failure takes place, the zero sequence relays failing to operate leads to max area blackout. |
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| Keywords: | TV connecting leads zero sequencevoltage relay fail |
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