摘要
简述兰州东变750kV GIS 75221 A相隔离开关局放发生情况,简介GIS超声局放测试系统原理和测试流程,比较GIS设备局放测试的超声法和传统测量方法的优缺点并分析二者之间的相关联系,深入分析75221 A相内部局部放电特征,以诊断放电类型并进行放电定位原因分析。结果表明,AIA型超声局放仪适用于已经投运的GIS设备、SF6罐式断路器等设备的局放带电检测和短期的在线监测。
This paper briefly introduces the partial discharge occurrence on the 75221 phase A disconnector, as well as the testing system theory and testing process of GIS PD ultrasonic detecting; compares the advantages and disadvantages between the ultrasonic method and the traditional PD detecting method, deeply analyzes the PD characteristics of the internal phase 75221 A. The result shows that AIA PD ultrasonic instrument applicable to the apparatus such as： the GIS equipment, which has been put into operation, and SF6 tank breaker etc. for PD live detecting and short-term on-line monitoring.
出处
《高压电器》
CAS
CSCD
北大核心
2010年第8期6-9,共4页
High Voltage Apparatus
