摘要
10～35kV金属封闭开关柜局部放电时导致绝缘损坏是事故发生的主要原因,本文主要介绍了开关柜局放检测的原理,采用暂态对地电压和超声波对开关柜内局部放电进行检测,并对试验数据进行分析研究。检测结果证明,局部放电检测对发现开关柜缺陷是有效的。
The PD of the 10kV-35kV Metal-enclosed switchgear is the main reason for the accident that the insulation is damaged. The paper mainly introduces the principle of the detection on the PD of the switchgear. The TEV methods and the ultrasound detection are adopted for the detection of the PD. The results show that the detection of the PD is effective to detect the defect of the PD of the switchgear.
出处
《电气技术》
2013年第6期58-60,共3页
Electrical Engineering
