12kV固体绝缘环网柜开关模块局部放电问题分析

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (8167 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The structure of the solid-insulated ring main unit (SIRMU) directly affects the electric field distribution of the switch module after applying the voltage, and the discharge capacity is reflected in the PD test. In this paper, based on the theoretical analysis of electric potential, the switch module of SIRMU is taken as the research object, the change of electric field intensity of the bottom supporting sheet metal structure of the switch module before and after optimization is analyzed theoretically and simulated based on the electric field simulation software, and the wave spectrum and PD data are collected through the test prototype for verification. The test results show that the structure of supporting sheet metal at the bottom of the switch module of the SIRMU has a significant impact on the PD of the SIRMU. By cutting the supporting sheet metal parts on the outlet side of the switch module, the distance between the outlet position and the edge of the supporting sheet metal is maximized, which can improve the electric field distribution of the switch module and the whole SIRMU, then reduce the local discharge of the SIRMU. The method proposed in this paper can provide design ideas and solutions for improving the insulation life and service life of the SIRMU.

Key words： solid-insulated ring main unit (SIRMU) partial discharge electric field analysis insulation performance switch module

Received: 03 July 2020

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	LI Xiao
	HUI Jie
	LIU Deyu
	ZHAO Gaochao
	GUO Lili

Cite this article:

LI Xiao,HUI Jie,LIU Deyu等. Partial discharge analysis of switch module of 12kV solid-insulated ring main unit[J]. Electrical Engineering, 2021, 22(3): 56-60.

URL:

http://dqjs.cesmedia.cn/EN/Y2021/V22/I3/56

[1] 郑晓果, 周行, 宋晓生, 等. 固体绝缘开关柜技术发展现状[J]. 价值工程, 2013, 32(24): 39-40, 41.
[2] LEEUWERKE R P, ROBINSON A, TOBIAS J C, et al.Developments in ring main unit design for improved MV network performance[J]. Power Engineering Journal, 2000, 14(6): 270-277.
[3] High-voltage test techniques partial discharge mea- surement:IEC 60270—2000[S]. 2000.
[4] 向驰, 葛乐矣, 周学俊, 等. 配电网中的固体绝缘环网柜研究[C]//2013年中国电机工程学会年会. 四川: 成都, 2013: 1-5.
[5] 侯春光, 李秋红, 高有华. 12kV涂敷屏蔽层的固体绝缘环网柜局部放电分析与结构设计[J]. 高压电器, 2018, 54(6): 241-247.
[6] 兰剑, 王承玉, 李庆余. 中国配电开关应关注的发展热点[J]. 高压电器, 2015, 51(10): 217-220.
[7] 吴红亚, 李建基. 中压充气柜及固体绝缘柜发展探讨[J]. 电工技术, 2011(10): 55-56.
[8] 吴良云, 韩云, 陈友强. 12kV固体绝缘环网柜的研究与发展现状[J]. 电气技术, 2017, 18(6): 8-12.
[9] 金立军, 刘世杰, 苏庆. 国外环网供电及环网柜的发展趋势[J]. 高压电器, 2005, 41(4): 301-303.
[10] 刘桂华, 李水胜, 董淑春, 等. 固体绝缘环网柜中关键结构的设计与分析[J]. 高压电器, 2016, 52(8): 136-140.
[11] 罗凌, 杨朝翔, 梅红伟, 等. 10kV固体绝缘真空断路器外绝缘体电场[J]. 清华大学学报(自然科学版), 2015, 55(5): 585-591.
[12] 杨敬华, 范承勇. 40.5kV真空断路器绝缘结构电场分析及优化设计[J]. 电网技术, 2011, 35(12): 146-152.
[13] 师军伟, 吴小钊, 李俊豪, 等. 固体绝缘环网柜涂屏蔽层对复合绝缘电场的影响研究[J]. 电工技术, 2018(7): 18-20, 24.
[14] 潘浩, 殷庆铎, 高文胜. 固体绝缘中气隙尺寸对局部放电过程的影响[J]. 高电压技术, 2008, 34(3): 458-461.
[15] ZHANG Guanjun, ZHAO Wenbin, ZHENG Nan, et al.Research progress on surface flashover phenomena across solid insulation in vacuum[J]. High Voltage Engineering, 2007(7): 30-35.
[16] TAKASHIMA K, ZUZEEK Y, LEMPERT E R, et al.Characterization of a surface dielectric barrier dis- charge plasma sustained by repititive pulse[J]. Plasma Source Science and Technology, 2011, 20(5): 1-10.
[17] 刘玉春, 董雪生, 郎福成. 固体绝缘环网柜开关模块局部放电原因分析及解决方案[J]. 高压电器, 2018, 54(8): 246-251.
[18] 侯春光, 陈程, 曹云东. 固体绝缘材料局放特性与电场分布关系研究[J]. 智能电网, 2016, 4(8): 754-759.
[19] 颜群. 一种固体绝缘开关柜绝缘结构的设计与分析[J]. 机械研究与应用, 2009, 22(5): 77-78, 80.
[20] 盛剑霓. 工程电磁场数值分析[M]. 西安: 西安交通大学出版社, 1991.