摘要
分析超声波局放仪的工作原理和特性指标。提出一种声发射信号模拟测评法,详细分析了超声波局放仪高级功能测评主谐振频率、灵敏度、线性度和方向性4个性能指标。通过对超声波局放仪现场测评对比,验证了笔者所提测评方法的有效性。
The working principle and characteristic indexes of the ultrasonic partial discharge instrument were analyzed and an acoustic emission signal simulation and evaluation method was proposed,including the analysis in detail of four main performance indexes like the main resonance frequency,sensitivity,linearity and directivity of ultrasonic partial discharge instrument in the advanced functional evaluation. Comparing the ultrasonic partial discharge instrument on site verifies effectiveness of the evaluation method proposed.
作者
闫江宝
张长胜
周雷
谭向宇
YAN Jiang-bao;ZHANG Chang-sheng;ZHOU Lei;TAN Xiang-yu(Faculty of Information Engineering and Automation,Kunming University of Science and Technology;Yunnan Electric Power Research Institute,Yunnan Power Grid Co.,Ltd.;School of Control and Computer Engineering,North China Electric Power University)
出处
《化工自动化及仪表》
CAS
2019年第2期111-114,124,共5页
Control and Instruments in Chemical Industry
关键词
超声波局放仪
高压电气设备
绝缘
性能测评
超声波传感器
声发射信号模拟测评法
局部放电
ultrasonic partial discharge detector
high voltage electrical equipment
insulation
performance evaluation
ultrasonic sensor
acoustic emission signal simulation method
partial discharge
