[1]徐立新,周柏杰,谭东现.干燥空气绝缘环网柜中的复合绝缘工频特性研究[J].高压电器,2019,55(04):52-59.[doi:10.13296/j.1001-1609.hva.2019.04.008]
 XU Lixin,ZHOU Baijie,TAN Dongxian.88183279[J].High Voltage Apparatus,2019,55(04):52-59.[doi:10.13296/j.1001-1609.hva.2019.04.008]
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干燥空气绝缘环网柜中的复合绝缘工频特性研究()
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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:
52-59
栏目:
研究与分析
出版日期:
2019-04-15

文章信息/Info

Title:
88183279
文章编号:
0052-0059
作者:
徐立新1 周柏杰2 谭东现3
1. 国网内蒙古东部电力有限公司,呼和浩特010010;2. 南瑞集团有限公司(国网电力科学研究院有限公司), 南京211000;3. 上海交通大学电气系,上海200030)
Author(s):
XU Lixin1ZHOU Baijie2TAN Dongxian3
1. East Inner Mongolia Electric Power Cooperation Limited,Hohhot 0100101,China;2. Nari Group Corporation State Grid Electric Power Research Institute Co.,Ltd.,Nanjing 211000,China;3. Department of Electric Engineering,Shanghai Jiao Tong University, Shanghai 200030,China)
关键词:
干燥空气环网柜电场分布复合绝缘最大场强
Keywords:
dry airring main unitelectric field distributioncompound insulationmaximum field strength
DOI:
10.13296/j.1001-1609.hva.2019.04.008
摘要:
采用干燥空气替代SF6作为环网柜的绝缘介质满足了目前开关设备的环保型发展需求,但由于干燥空 气绝缘强度远低于SF6,需要对产品的固体—气体复合绝缘的配合进行深入研究,目前这方面的系统性研究 较少。文中首先采用不同形式的基础电极,研究了电场均匀度、气压和间隙对干燥空气间隙工频特性的影 响,得到了不同均匀度条件下的最大击穿电场强度数据。针对实际产品的套管位置开展了仿真和试验研 究,系统性分析了复合绝缘结构对最大电场强度位置和数值的影响。结果表明,间隙下的电场均匀度与最 大场强关系可作为复合绝缘耐压特性的判据,采用固体绝缘材料包覆、增大间隙以及优化电场均匀度等方 法可有效提高复合绝缘的耐压特性。
Abstract:
Using dry air replace sulfur hexafluoride(SF6)as insulation medium for ring main unit meets the require? ment of environmental protection development of switch equipment. However,the much lower dielectric strength of dry airthanSF6 make the further study on the solid?gas composite insulation become necessary,on which area the system? atical research work is limited. In this work,differenttypesoffundamentalelectrodeareusedtoresearchtheinfluenc? es of electrical field uniformity,gas pressure and gap distance on the power frequency characteristic. The data of maxi? mumbreakdownfieldstrengthondifferentfielduniformityisobtained.Simulationandexperimentalresearchesarecar? ried out on the insulation bush position of the actual product,on this basis,the influence of composite insulation struc? ture on the position and value of maximum electric field strength is systematically analyzed. The results show that,the relationship between electric field uniformity and maximum field strength under gaps can be the criterion for the char? acteristics of composite insulation. Also,the voltage withstanding properties of composite insulation can be improved effectivelybyusingsolidinsulationmaterialcovering,increasingdistanceandoptimizingelectricfielduniformity.

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备注/Memo

备注/Memo:
收稿日期:2018?08?17; 修回日期:2018?10?11; 徐立新(1966—),男,硕士,高级工程师,主要从事电力系 统设备制造及管理工作。
更新日期/Last Update: 2019-04-16