电气技术2025，Vol.26Issue(3)：65-69,5.
一起330kV气体绝缘金属封闭开关设备金属毛刺放电缺陷分析与处理
Analysis and treatment of metal burr discharge defects in a 330kV gas insulated switchgear
黎宏飞 1高宗宝 1张靖 1马亚光1
作者信息
- 1. 国家能源集团科学技术研究院有限公司,成都 610000
- 折叠
摘要
Abstract
The article introduces a case of analyzing and processing abnormal ultrasonic signals in the busbar air chamber of a 330kV gas insulated switchgear(GIS).By locating the amplitude and changing the operating status of the equipment,it is determined that the defect comes from the busbar chamber on the main transformer side.By analyzing the scatter plot and phase amplitude plot of the partial discharge ultrasonic signal,it is believed that the discharge of metal foreign objects at the bottom of the gas chamber is the main cause of the abnormal ultrasonic signal.After inspection of the manhole,it is found that there is a silver white metal sharp substance at the measuring point on the bottom of the tank body,which is generated during the production.This GIS busbar air chamber discharge is a typical case of metal tip discharge treatment,providing reference for the treatment of similar abnormal defects in the future.关键词
金属尖端放电/气体绝缘金属封闭开关设备(GIS)/异常超声波信号/气室Key words
metal tip discharge/gas insulated switchgear(GIS)/abnormal ultrasonic signal/air chamber引用本文复制引用
黎宏飞,高宗宝,张靖,马亚光..一起330kV气体绝缘金属封闭开关设备金属毛刺放电缺陷分析与处理[J].电气技术,2025,26(3):65-69,5.
