[1]李红梅,周柏杰,谭东现,等.用于环保型C?GIS的氮气及干燥空气正极性雷电冲击特性研究[J].高压电器,2019,55(04):25-30.[doi:10.13296/j.1001-1609.hva.2019.04.004]
 LI Hongmei,ZHOU Baijie,TAN Dongxian,et al.Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco?friendly C?GIS[J].High Voltage Apparatus,2019,55(04):25-30.[doi:10.13296/j.1001-1609.hva.2019.04.004]
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用于环保型C?GIS的氮气及干燥空气正极性雷电冲击特性研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年04期
页码:
25-30
栏目:
研究与分析
出版日期:
2019-04-15

文章信息/Info

Title:
Study on Positive Lightning Impulse Characteristics of Nitrogen and Dry Air for Eco?friendly C?GIS
文章编号:
0025-0030
作者:
李红梅1 周柏杰2 谭东现3 薛健2 蔡凡一2 肖登明3
1. 上海海洋大学,上海201306;2. 南瑞集团公司(国网电力科学研究院有限公司),南京210000; 3. 上海交通大学电气系,上海200030
Author(s):
LI Hongmei1ZHOU Baijie2TAN Dongxian3XUE Jian2CAI Fanyi2XIAO Dengming3
1. Shanghai Ocean University,Shanghai 201306,China;2. Nari Group Corporation(State Grid Electric Power Research Institute Co.,Ltd.),Nanjing 210000,China;3. Department of Electric Engineering,Shanghai Jiao Tong University,Shanghai 200030,China
关键词:
气体绝缘环保型开关电场均匀度最大场强
Keywords:
gas insulationeco?friendly switchgearelectric field utilizationmaximum electric field strength
DOI:
10.13296/j.1001-1609.hva.2019.04.004
摘要:
采用氮气或干燥空气替代SF6作为绝缘介质是目前环保型柜式气体绝缘金属封闭开关设备(C?GIS)的 研究热点。要保证气箱内部结构紧凑、小型化的特征,需要充分掌握气体介质的绝缘特性,寻找电场均匀度 对气体高压击穿特性的影响规律。文中研究了在0.10、0.15 MPa压力下,不同电极形式、电极间隙下的两种 绝缘气体的正极性雷电冲击耐压特性。数据对比表明:干燥空气相比氮气具有更高的正极性雷电冲击电压 击穿特性。同时总结了最大击穿场强Emax与电场均匀度η之间的关系,得到C?GIS绝缘结构设计方面的关键 判据。
Abstract:
Using nitrogen and dry air to replace SF6 as the insulation material for eco?friendly cubic gas insulated switchgear(C?GIS)is very popular nowadays. To ensure the characteristics of compact structure and small size,en? gineers have to fully understand the insulation characteristics of the substitute gases. This article studies the funda? mental properties of dry air and N2 as the insulation medium from the respects of different electrode forms or elec? trodes gaps at 0.1 MPa and 0.15 MPa gas pressures. Comparison of experimental data indicates that the insulation withstand level of dry air is higher than Nitrogen for the positive lightning voltage. Simultaneously,we conclude the relation between the Emax(maximum electric field strength)and the η(electric field utilization)as the critical criteri? on of the C?GIS insulation structure designing.

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备注/Memo

备注/Memo:
收稿日期:2018?11?10; 修回日期:2019?01?14; 李红梅(1974—),女,博士,讲师,研究方向为电力系统 优化运行、电力设备优化设计。
更新日期/Last Update: 2019-04-16