| 500 kV输电线路故障跳闸原因分析及防止对策 |
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| 引用本文： | 赵联英.500 kV输电线路故障跳闸原因分析及防止对策[J].青海电力,2006,25(4):23-26. |
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| 作者姓名： | 赵联英 |
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| 作者单位： | 大同超高压供电公司,山西,大同,037006 |
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| 摘 要： | 输电线路故障跳闸现象严重影响线路功率的输送。文章对2001—2005年神大线等11条500 kV输电线路因雷击、鸟害、风偏等原因引起线路故障跳闸进行了原因分析,并从降低杆塔接地电阻、雨季前调节放电间隙、减小保护角等方面提出了超高压输电线路防雷保护的对策,可有效地减少线路跳闸率,提高线路运行的可靠性。
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| 关 键 词： | 500 kV输电线路 雷击事故 跳闸原因 保护角预防 |
| 文章编号： | 1006-8198(2006)04-0023-04 |
| 收稿时间： | 2006-04-17 |
| 修稿时间： | 2006年4月17日 |
Trip Fault Reason Analysis and Countermeasure of 500kV Transmission Line |
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| ZHAO Lian-ying.Trip Fault Reason Analysis and Countermeasure of 500kV Transmission Line[J].Qinghai Electric Power,2006,25(4):23-26. |
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| Authors: | ZHAO Lian-ying |
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| Affiliation: | ZHAO Lian-ying |
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| Abstract: | The paper analyzes trip fault reason of 500kV transmission line that was induced by lightning strike,birds and wind deviation from 2001 to 2005,and proposes countermeasures of preventing transmission line from lightening strike such as reducing pole tower grounding resistance,regulating discharge clearance before rainy season and decreasing protective angle,therefore effectively reduces trip retio of transmission line,and improves operating reliability of transmission line. |
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| Keywords: | 500 kV transmission line lightning strike accident trip reason protective angle prevention |
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