摘要
阐述超声波定位法和瞬时对地电压(transient earth voltages,TEV)定位法的局部放电检测定位原理。建立开关柜仿真模型,对其局部放电传播情况进行仿真分析。结合实例利用TEV定位法和超声波定位法对开关柜局部放电进行测试分析,测试结果表明,2种方法可有效查找设备的缺陷位置,消除事故隐患。
Inspection and location principle of partial discharge of ultrasonic location method and transient earth voltages (TEV) method is expounded. Simulation model of switch cabinet is built for simulation analysis of transmission of partial discharge. Partial discharge of switch cabinet is tested and analyzed in virtue of TEV location method and ultrasonic location method by combination with examples. The test result shows that the above two methods can effectively seek for the fault location on the equipment and eliminate the hidden hazards.
出处
《广东电力》
2011年第8期87-90,共4页
Guangdong Electric Power