电气设备局部放电的超声波检测方法  

The Study on Ultrasonic Measure in Partial Discharge of Electric Equipment

作　　者：张宇鹏[1] 杨永明[1] 杨承河[1] 王波[1] 

机构地区：[1]重庆大学输变电安全与电工新技术国家重点试验室,重庆400044

出　　处：《压电与声光》2010年第3期414-416,共3页Piezoelectrics & Acoustooptics

基　　金：重庆市自然科学重点基金项目资助(CSTC;2007BA3001)

摘　　要：针对传统方法检测局部放电信号的局限性,采用压电传感器研制了局部放电的超声波检测系统。利用该系统对空气中的局部放电进行了检测,并对不同的传感器以及不同强度放电源的检测结果进行了对比分析,得出局部放电产生的超声波特性及规律,初步探讨了障碍物对超声波信号传播的影响,为故障点局部放电识别及定位研究奠定了基础。For the limitations in the traditional way that detects the signal of partial discharge,we develop the ultrasonic detect system on partial discharge by using the different ultrasonic transducer.With this system,we detect the character of ultrasonic generated in the partial discharge in the air,and draw the conclusion by taking comparison and analysis on the detect results.In addition,we take preliminary research on the effect of the obstruction on the ultrasonic signal transmission,and it will offer the foundation of the detection and location of the partial discharge in the fault point.

关 键 词：超声波检测 局部放电 电气设备 

分 类 号：TM85[电气工程—高电压与绝缘技术]