摘要
气体绝缘组合电器(Gas Insulated Switchgear,简称GIS)局部放电检测对于保证电器的安全运行具有重要意义。为了对GIS进行有效的故障诊断,试验设计了3种典型绝缘缺陷类型,通过超高频法对局部放电进行了检测,获得了n-q、q-Ф等分布图谱。结果表明:不同的局部放电类型具有不同图谱特征,且图谱差异明显,可以通过图谱特征对故障引起的局部放电进行识别,为GIS故障诊断和安全运行提供了参考依据。
Detecting partial discharges in GIS is significant in ensuring the safe operation. Todiagnose faults in GIS effectively, three typical insulation defects were designed. The partialdischarge was detected by ultra high frequency method, consequently the n-q and the q-Ф curveswere obtained. Results show that different partial discharge defects result in different curvecharacters. Differences between different curves are significant, which can help to identify thepartial discharge caused by faults. It provides a reference for diagnosing faults in GIS andoperating safely.
出处
《电工材料》
CAS
2014年第1期11-14,共4页
Electrical Engineering Materials
关键词
局部放电
超高频
图谱特征
识别
GIS
GIS
partial discharge
ultra high frequency
curve characters
identify