220 kV某GIS设备伸缩节的放电分析
赵全胜1，何向东2，王青霞1，石云松1，李晓飞1，邵志中1
(1 国网河南省电力公司郑州供电公司，河南 郑州 450052;
2 郑州祥龙电力股份有限公司，河南 郑州 450006)
摘 要：气体绝缘开关设备 (GIS) 受制造技术、装配工艺、运行环境等因素影响，运行中可能会出现六氟化硫 (SF6) 气体泄漏、局部放电等故障。介绍了某 220 kV 气体绝缘设备伸缩节气室漏气放电， 220 kV 母差保护动作跳闸事故，解体故障气室，从环境、受力、导体等方面进行了故障分析，并给出了整改措施，对 GIS 设备的运行维护具有一定的借鉴意义。
关键词：气体绝缘开关设备 (GIS) ；伸缩节；SF6 泄漏；检查分析
中图分类号：TM591 文献标识码：B 文章编号：1007-3175(2022)03-0038-04
Discharge Analysis of 220 kV Expansion Joint of a GIS Device
ZHAO Quan-sheng1, HE Xiang-dong2, WANG Qing-xia1, SHI Yun-song1, LI Xiao-fei1, SHAO Zhi-zhong1
（1 Zhengzhou Power Supply Company, State Grid Henan Electric Power Company, Zhengzhou 450052, China;
2 Zhengzhou Xianglong Electric Power Co., Ltd, Zhengzhou 450006, China）
Abstract: Gas-insulated switchgear (GIS) might have SF6 gas leakage, partial discharge, and other faults during operation affected by factors such as manufacturing technology, assembly process, operating environment, etc.This paper introduced the leakage discharge phenomenon of 220 kV gas insulation equipment telescopic throttle chamber, the tripping accident of 220 kV bus differential protection action,the disassembly of the failure air chamber. The study analyzes the failure from different perspectives, such as environment, stress, conductor,etc., and provides the rectification measures, which have certain reference significance for the operation and maintenance of GIS equipment.
Key words: gas-insulated switchgear (GIS); expansion joint; SF6 leakage; check and analysis
参考文献
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