XING LIKUN, LI GUOWEI, WANG JUNBO, et al. Diagnostic Analysis on Abnormal Infrared of One 110 kV CVT. [J]. Power capacitor & reactive power compensation, 2015, 36(1): 68-72.
XING LIKUN, LI GUOWEI, WANG JUNBO, et al. Diagnostic Analysis on Abnormal Infrared of One 110 kV CVT. [J]. Power capacitor & reactive power compensation, 2015, 36(1): 68-72. DOI: 10.14044/j.1674-1757.pcrpc.2015.01.016.
一起110kV CVT红外异常的诊断分析
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。
Abstract
As for abnormal heat fault of the electromagnetic unit cover for 110 k V 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
Keywords
capacitor voltage transformer(CVT)infrared thermometerheat faultfault diagnosis