配电网树线放电故障容性电流转移消弧实验研究

doi:10.11930/j.issn.1004-9649.202207017

中国电力 ›› 2022, Vol. 55 ›› Issue (11): 51-58.DOI: 10.11930/j.issn.1004-9649.202207017

配电网树线放电故障容性电流转移消弧实验研究

赵福平¹, 范松海¹, 冀一玮², 宁鑫¹, 尚豪², 宁文军², 赵莉华², 曾德华³

1. 国网四川省电力科学研究院有限公司，四川成都 610000;
2. 四川大学电气工程学院，四川成都 610065;
3. 四川赛康智能科技股份有限公司，四川成都 610000

收稿日期:2022-07-13 修回日期:2022-08-23 发布日期:2022-11-29
作者简介:赵福平（1994—），男，助理工程师，从事输电设备状态评价、电瓷防污闪技术及其应用、绝缘子老化及寿命评估等方面的研究，E-mail：1770379301@qq.com;宁文军（1987—），男，通信作者，副研究员，从事气体放电低温等离子体、电气设备状态监测与故障诊断等研究，E-mail：ningwj@scu.edu.cn
基金资助:
国家电网有限公司科技项目（20H0693）；国网四川省电力公司科技项目（35 kV和10 kV线路山火故障定位与防治技术研究, 52199720002J）。

Experimental Study on Capacitive Current Transfer Arc Suppression of Tree-line Discharge Fault in Distribution Network

ZHAO Fuping¹, FAN Songhai¹, JI Yiwei², NING Xin¹, SHANG Hao², NING Wenjun², ZHAO Lihua², ZENG Dehua³

1. State Grid Sichuan Electric Power Research Institute Co., Ltd., Chengdu 610000, China;
2. School of Electrical Engineering, Sichuan University, Chengdu 610065, China;
3. Sichuan Saikang Intelligent Technology Co., Ltd., Chengdu 610000, China

Received:2022-07-13 Revised:2022-08-23 Published:2022-11-29
Supported by:
This work is supported by Science and Technology Project of SGCC (No.20H0693), State Grid Sichuan Electric Power Company Science and Technology Project (Research on Fault Location and Prevention Techniques for Hill Fires on 35 kV and 10 kV Lines, No.52199720002J)

摘要/Abstract

摘要： 山区配电网发生树线放电故障可能诱发山火，因此需研究低成本、易控制的配电网树线放电故障消弧措施。基于10 kV配电线路实验平台，对配电网树线放电故障容性电流转移消弧进行了实验研究。实验表明，容性电流转移开关闭合后，故障点电弧或亮斑消失，烟雾消散，故障点电流由数百mA降低至20 mA左右，表明该方法具备良好的消弧效果。容性电流转移时间与接地转移开关固有动作时延接近。进一步设置了不同的容性电流和树木电阻，均能实现有效熄弧，且转移时间与树木电阻和容性电流均无明显关系，表明了容性电流转移消弧方法的普适性。

关键词: 配电网, 实验研究, 容性电流转移, 树线放电, 消弧

Abstract: The tree-line discharge faults of mountainous distribution networks may induce forest fires, so it is indispensable to study the low-cost and easy-to-control arc suppression measures for tree-line discharge faults in distribution networks. Based on a 10 kV distribution line experimental platform, the paper conducted an experimental study on the capacitive current transfer arc suppression for tree-line discharge faults in distribution networks. The experiments show that when the capacitive current transfer switch is closed, the arc or bright spot at the fault point disappears and the smoke dissipates, and the fault point current is reduced from several hundreds mA to about 20 mA, indicating that the method has a good arc suppression effect. The capacitive current transfer time is close to the intrinsic action time delay of the grounding transferring switch. Furthermore, different capacitive current and tree resistance are set to achieve effective arc suppression, and the transfer time is not significantly related to either tree resistance or capacitive current, demonstrating the universality of the capacitive current transfer arc suppression method.

Key words: distribution network, distribution network, capacitive current transfer, tree-line discharge, arc suppression

赵福平, 范松海, 冀一玮, 宁鑫, 尚豪, 宁文军, 赵莉华, 曾德华. 配电网树线放电故障容性电流转移消弧实验研究[J]. 中国电力, 2022, 55(11): 51-58.

ZHAO Fuping, FAN Songhai, JI Yiwei, NING Xin, SHANG Hao, NING Wenjun, ZHAO Lihua, ZENG Dehua. Experimental Study on Capacitive Current Transfer Arc Suppression of Tree-line Discharge Fault in Distribution Network[J]. Electric Power, 2022, 55(11): 51-58.

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配电网树线放电故障容性电流转移消弧实验研究

Experimental Study on Capacitive Current Transfer Arc Suppression of Tree-line Discharge Fault in Distribution Network

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配电网树线放电故障容性电流转移消弧实验研究

Experimental Study on Capacitive Current Transfer Arc Suppression of Tree-line Discharge Fault in Distribution Network

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