UHF技术在高压开关柜状态检修中的应用

Application of UHF in Status Overhaul of High Voltage Switchgear

开关柜作为重要的电力设备,在长期的运行过程中,必然会出现绝缘老化的现象,导致局部放电产生,从而引发设备损坏与停电事故。本文结合一起10kV开关柜的局部放电实例,分析了开关柜局部放电产生的机理以及UHF方法的检测原理,并通过停电检查验证了UHF技术在开关柜状态检修中的应用效果。

As important power equipment, switchgear will inevitably appear the phenomenon of insulation deterioration in the long-term operation process, which will lead to partial discharge, causing equipment damage and power failure accidents. With an example of 10 kV switchgear, this paper analyzed the mechanism of partial discharge and the detection principle of UHF method. Finally, this paper verifies the application effect of UHF technology in the state maintenance of switchgear via power cut inspection.