江河隧道/城市管廊GIL的可靠性与适用性设计  

Reliability and Applicability Design of GIL in River Tunnel and Urban Pipe Corridor

作　　者：黎斌 张烈 张微 李松 张晓伟 王卫华[2] 熊赟超 张长虹[3] 刘婉莹[3] 盛康[3] LI Bin;ZHANG Lie;ZHANG Wei;LI Song;ZHANG Xiaowei;WANG Weihua;XIONG Yunchao;ZHANG Changhong;LIU Wanying;SHENG Kang(Beijing Power Equipment Group Co.,Ltd.,Beijing 102401,China;East China Electric Power Design Institute Co.,Ltd.,Shanghai 200001,China;CSG EHV Power Transmission Grid Co.,Ltd.,Guangzhou 510663,China)

机构地区：[1]北京电力设备总厂有限公司,北京102401 [2]华东电力设计院有限公司,上海200001 [3]中国南方电网超高压输电公司,广州510663

出　　处：《高压电器》2019年第6期1-14,共14页High Voltage Apparatus

摘　　要：介绍了过江河隧道及大城市市区综合管廊中高压/特高压GIL的特殊运行环境及要求,总结了GIL常见的运行故障,从绝缘、密封、电接触、母线及外壳支撑等方面分述了GIL可靠性结构设计要求及方案;从方便现场拆装、特性监测、寻找处理故障等方面分述了GIL的适用性设计要领,提出了长线GIL设置封闭式隔离开关分段运行理念以及局放监测系统的可靠性设计理念和应用设计理念。为确保GIL运行可靠性文中还特别强调了制造质量监控的重要性,为GIL的设计、制造和运行提供有益的借鉴。This paper introduces the special operation environment and requirements of GIL withhigh voltage or ultrahigh voltage(UHV)in the cross-river tunnel and the integrated pipe corridor in large cities.The common operation failures of GIL are summarized.The design requirements and scheme of GIL reliability structure are described in terms of insulation,seal,electrical contact,busbar and shell support.The essentials of GIL applicability design are discussed from the aspects of convenient field disassembly and assembly,characteristics monitoring,fault finding and treatment,etc.The concept of partitioned operation of long GIL with enclosed isolation switch and the design concepts of reliability and application of local discharge monitoring system are proposed.In order to ensure the reliability of GIL operation,the importance of manufacturing quality control is emphasized,which may provide reference for GIL’s design,manufacture and operation.

关 键 词：GIL内绝缘 绝缘件表面电场 高气密性 母线与外壳支撑 可靠性及适用性设计 制造质量监控 隧道/管廊GIL 

分 类 号：TM75[电气工程—电力系统及自动化]