摘要
运行中局部放电测试是检测GIL设备内部是否存在缺陷的最有效手段之一。文中对GIL设备运行中超声波局部放电测试发现的异常进行了分析。依据超声波局放测试、超声波/地电波/高频电流声电联合诊断测试、现场解体检查及返厂解体检查结果进行了综合分析判断,确定了局放异常产生的原因并提出运行建议。
Partial discharge （PD） test during equipment operation is one of the most effective methods for checking whether fault exists inside a GIL. In this paper, the GIL abnormal phenomena detected by ultrasonic PD test in operation are analyzed. The results obtained from ultrasonic PD test, combined uhrasonic/TEV/ high-frequency-current acoustic-electric diagnostic analyzed and judged comprehensively. As a result, test, on-site and manufacturer disassembly inspections are the reason for abnormal PD is determined, and corresponding suggestions are offered.
出处
《高压电器》
CAS
CSCD
北大核心
2017年第12期241-246,共6页
High Voltage Apparatus
关键词
局部放电
GIL
声电联合
解体检查
Partial discharge（PD）
GIL
acoustic-electric combined
disassembly inspection
