综合应用多种带电检测手段确诊设备局部放电缺陷

Comprehensive Application of Various Live Detection Methods for Partial Discharge Detection

红外测温和超高频带电局部放电检测是目前较为成熟的带电检测手段。红外测温能对电气设备故障缺陷及绝缘性能做出可靠的预测;超高频带电检测可以有效排除干扰信号的影响,对局部放电产生的脉冲信号无损再现,根据其波形特点可判断故障缺陷的类型。多种带电检测手段的综合应用使传统电气设备的预防性试验检修提高到预知性的状态检修,提高了检修的针对性和效率。结合一起设备缺陷的发现与处理,验证了多种带电检测手段相结合判断设备缺陷的有效性,为促进带电检测水平的提升提供了一定参考。

Infrared temperature measurement and ultra charged detection method. Infrared temperature measurement high frequency PD （Partial Discharge） detection are currently mature can make reliable prediction to electrical equipment fault and insulation performance; Ultra high frequency charged PD detection can effectively remove the influence of the interference signal, and reappear the pulse signal of the partial discharge, so that the type of the fault defects can be judged according to waveform characteristics. By use of various method of live line inspection, the traditional electrical equipment preventive test maintenance could be raised to predictable condition based maintenance, improving the pertinence and efficiency of the maintenance. Combined with the discovery and treatment of equipment defects, the effectiveness of various method of live line inspection to judge equipment defect was verified, which provided a reference to the advance of live line inspection level.