[1]杨跃光,苏俊源,孙泽中,等.棒-板-棒组合间隙雷电冲击特性试验研究[J].电瓷避雷器,2020,(03):68-73,80.[doi:10.16188/j.isa.1003-8337.2020.03.011]
 YANG Yueguang,SU Junyuan,SUN Zezhong,et al.Experiment Investigation on Breakdown Characteristics of Rod-Plate-Rod Gap Under Lightning Impulse Voltage[J].,2020,(03):68-73,80.[doi:10.16188/j.isa.1003-8337.2020.03.011]
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棒-板-棒组合间隙雷电冲击特性试验研究()
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《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年03期
页码:
68-73,80
栏目:
避雷器
出版日期:
2020-06-25

文章信息/Info

Title:
Experiment Investigation on Breakdown Characteristics of Rod-Plate-Rod Gap Under Lightning Impulse Voltage
作者:
杨跃光1 苏俊源1 孙泽中2 张予阳1 姒天军2 鲁海亮2
(1.中国南方电网超高压输电公司,广州 510663; 2.武汉大学电气工程学院,武汉 430072)
Author(s):
YANG Yueguang1 SU Junyuan 1 SUN Zezhong2 ZHANG Yuyang1 SI Tianjun2 LU Hailiang2
(1.China Southern Power Grid EHV Transmission Company, Guangzhou 510063, China; 2.School of Electrical Engineering, Wuhan University, Wuhan 430072, China)
关键词:
棒-板-棒组合间隙 雷电冲击电压 击穿电压 击穿时间 放电路径
Keywords:
rod-plate-rod gap lightning impulse voltage breakdown voltage breakdown time flashover route
DOI:
10.16188/j.isa.1003-8337.2020.03.011
摘要:
在电力系统中,常存在一些由悬浮物体和空气间隙构成的组合间隙,其放电行为相较常见空气间隙更为复杂,放电特性规律难以总结。针对此,设计了一种含悬浮金属板的棒-板-棒组合间隙试验装置,开展了棒-板-棒组合间隙在雷电冲击电压下放电特性的试验研究,并分析了电压极性、金属板尺寸和金属板位置对组合间隙的放电特性的影响。研究表明,金属板放置于间隙正中时,能够提升间隙的雷电冲击击穿电压。不过当金属板在棒电极附近时,击穿电压可能会低于棒-棒间隙,且不同电压极性下的情况存在差异。此外,金属屏障会增大间隙的放电时间分散性,并改变放电路径。
Abstract:
In power system, there are some combined gaps composed of floating objects and air gaps, the breakdown characteristics are difficult to sum up and more complex compared to the air gaps. In this paper, an experiment device with the Rod-Plate-Rod gap was designed, the breakdown characteristics of the Rod-Plate-Rod gap under the lightning impulse voltage were studied. The effects of voltage polarity, plate size and position on breakdown characteristics were analyzed. Research results show that metal plate could enhance the lightning impulse breakdown voltagewhen the metal plate is in the middle of the gap. In particular, when the metal plate got closer to the rod, the breakdown voltage became lower than the Rod-Rod gap and this phenomenon was related to the polarity of the voltage. In addition, the plate increased the dispersion of breakdown time and changed the flashover route. The research results have guiding significance to practical application.

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备注/Memo

备注/Memo:
收稿日期:2018-08-08 作者简介:杨跃光(1987—),男,硕士,工程师,从事超、特高压输电线路雷电防护方面的工作。 基金项目:国家自然科学基金青年科学基金项目(编号:51507119)。
更新日期/Last Update: 2020-07-07