一起110kV CVT红外异常的诊断分析  

Diagnostic Analysis on Abnormal Infrared of One 110 kV CVT

作　　者：邢立坤[1] 李国伟[1] 王俊波[1] 邱太洪[1] 

机构地区：[1]广东电网公司佛山供电局,广东佛山528000

出　　处：《电力电容器与无功补偿》2015年第1期68-72,共5页Power Capacitor & Reactive Power Compensation

摘　　要：针对一起110 kV电容式电压互感器(CVT)电磁单元盖板发热异常故障,结合CVT二次电压变化情况,通过对其进行绝缘电阻测试、介损及电容测试、局部放电等试验分析诊断故障原因,并解体验证诊断结果的准确性,为CVT故障诊断和运行维护提供了科学依据,并对CVT的运行维护提出建议。As for abnormal heat fault of the electromagnetic unit cover for 110 kV capacitor voltage transformer （CVT）, the reason of such fault is analyzed and diagnosed based on the secondary voltage variation of the CVT, on the test of insulation resistance, dielectric loss and capacitance as well as partial discharge etc, the correctness of the diagnosis result is verified through disassembly, which provides scientific reference to the fault diagnosis, operation and maintenance of the CVT as well as suggestions on operation and maintenance of the CVT.

关 键 词：电容式电压互感器(CVT) 红外测温 发热故障 故障诊断 

分 类 号：TM451[电气工程—电器]