接地导体密封圈在盆式绝缘子中的应用  

Research on Grounding Conductive Rings in Basin-type Insulators

作　　者：高锵源 郑雪钦[1] 张建宏 陈潇[1] GAO Qiangyuan ZHENG Xueqin ZHANG Jianhong CHEN Xiao(School of Electrical Engineering ＆ Automation, Xiamen University of Technology, Xiamen 361024, China Motic（ Xiamen ） Electric Group, Xiamen 361101, China)

机构地区：[1]厦门理工学院电气工程与自动化学院,福建厦门361024 [2]麦克奥迪(厦门)电气股份有限公司,福建厦门361101

出　　处：《厦门理工学院学报》2017年第3期29-33,共5页Journal of Xiamen University of Technology

摘　　要：采用接地导体密封圈替代传统绝缘橡胶密封圈,以提高现有盆式绝缘子的运行安全裕度,减少局部放电发生。仿真结果表明:无金属法兰和无屏蔽内环的盆式绝缘子在采用接地导体密封圈后,密封圈与SF_6的界面处最大电场降低了35%左右;带有金属法兰和带有部分屏蔽内环的盆式绝缘子在采用接地密封圈后,绝缘子法兰与环氧树脂浇注体间的气隙最大电场强度降低了47%左右。试验验证了该方案的有效性和可行性。In order to improve the safety margin of the basin-type insulator, discharge, the grounding conductor sealing ring is proposed to substitute for paper. Simulation results show that applying the grounding conductor sealing reduce the occurrence of partial the traditional seal ring in this ring to the basin-type insulator without metallic flanges or shield inner rings, the maximum electric field between seal ring and sulfur hexafluoride decreases about 35%. The maximum electric field in air gaps between metallic flanges and epoxy resin castings may reduce by 47% when the grounding conductor sealing ring is applied to the basin-type insulator with metallic flanges and partially shielded inner rings. The results of simulation and experiment have verified the effectiveness and feasibility of the prodosed scheme.

关 键 词：导体密封圈 局部放电 电场强度 盆式绝缘子 

分 类 号：TM216[一般工业技术—材料科学与工程]