基于TEV和AE的开关柜局部放电综合分析系统

A comprehensive analysis system of partial discharge in switchgear cabinet based on TEV and AE

在分析局部放电检测原理、方法和装置的基础上,采用暂态地电压和超声波联合检测的方法搭建了开关柜局部放电在线监测装置,开发了具备快速巡检和重症监护功能的综合分析软件,并在实际案例中进行了测试,验证了基于暂态地电压和超声波的开关柜局部放电综合分析系统的高准确性、高灵敏度和高抗干扰性。系统具有良好的便携性和灵活性,且具有开关柜全天候重症监护能力。

Based on the analysis of the detection principle,method and device of partial discharge,an online monitoring device for partial discharge in switchgear cabinet was built by using the method of transient earth voltage(TEV)and acoustic emission(AE),and a comprehensive analysis software with rapid inspection and intensive care functions was developed.The device was tested in practical cases,which verifies high accuracy,sensitivity and excellent anti-interference of the comprehensive analysis system of partial discharge in switchgear cabinet based on TEV and AE.The system is portable and flexible,and owns 24-hour intensive care for switchgear cabinets.