[1]元乙贺,尹相爱,刘大巍,等.考虑工作电压的66 kV同塔双回线路雷击闪络因素研究[J].电瓷避雷器,2020,(02):105-110.[doi:10.16188/j.isa.1003-8337.2020.02.017]
 YUAN Yihe,YIN Xiangai,LIU Dawei,et al.Study on Flashover Factors of 66 kV Double-Circuit Transmission Lines Considering Working Voltage[J].,2020,(02):105-110.[doi:10.16188/j.isa.1003-8337.2020.02.017]
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考虑工作电压的66 kV同塔双回线路雷击闪络因素研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
105-110
栏目:
避雷器
出版日期:
2020-04-25

文章信息/Info

Title:
Study on Flashover Factors of 66 kV Double-Circuit Transmission Lines Considering Working Voltage
作者:
元乙贺1 尹相爱2 刘大巍2 鲁志伟1
(1.东北电力大学电气工程学院, 吉林 吉林, 132012; 2.国网吉林省电力有限公司吉林供电公司, 吉林 吉林, 132012)
Author(s):
YUAN Yihe1 YIN Xiangai2 LIU Dawei2 LU Zhiwei1
(1.Electrical Engineering College Northeast Electric Power University, Jilin 132012, China; 2.State Grid Jilin Electric Power Company Limited Jilin Power Supply Company, Jilin 132012, China)
关键词:
66 kV 同塔双回 导线相序 工频相角
Keywords:
66 kV double circuits on the same tower phase sequence phase angle
DOI:
10.16188/j.isa.1003-8337.2020.02.017
摘要:
同塔双回输电线路多相故障会严重威胁电网的安全稳定运行,雷击杆塔具有随机性,不同雷击时刻工作电压的变化对线路耐雷性能有很大影响。选择66 kV某线路作为研究对象,结合该线路的具体参数,利用电力系统电磁暂态计算程序(ATP-EMTP)进行仿真计算。分析杆塔高度、接地电阻、工作电压中相角和导线相序排列方式等因素对雷击杆塔时闪络雷电流大小以及闪络相的影响,其中同相序排列耐雷性能最差应尽量避免。综合比较出耐雷性能最优的情况,为工程实际中66 kV线路差异化防雷提供理论依据。
Abstract:
Double circuit failures of double circuit transmission lines on the same tower will seriously threaten the safe and stable operation of the power grid. Lightning rod tower is random, and the difference of working voltage between different lightning strokes is very important to the lightning protection performance of the line. A line of 66 kV is selected as the research object, and combining with the specific parameters of the line, the simulation calculation is carried out by power system electromagnetic transient calculation program(ATP-EMTP). Analysis has been made about the influence of the height of the tower, the grounding resistance, the phase angle of the working voltage and the arrangement of the phase sequence of the conductor on the flashover current size and the flashover phase of the lightning rod tower. Comparison of lightning resistance performance, it provides a theoretical basis for comprehensive lightning protection of 66 kV lines in engineering practice, and realizes differential lightning protection.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-07-18作者简介:元乙贺(1993—),女,硕士,主要研究方向为电力系统高电压与绝缘技术。
更新日期/Last Update: 2020-04-25