HUANG Hai-bo, DUAN Jian-jia, LIU Wei-guo, et al. Diagnostic analysis of internal partial discharge fault for an oil-immersed current transformer[J]. 2015, 35(2): 35-36+40.
HUANG Hai-bo, DUAN Jian-jia, LIU Wei-guo, et al. Diagnostic analysis of internal partial discharge fault for an oil-immersed current transformer[J]. 2015, 35(2): 35-36+40.DOI:
油浸式电流互感器内部局部放电故障的诊断分析
摘要
介绍了一起油浸式电流互感器由于内部绝缘故障导致运行中油色谱分析不合格
通过油色谱跟踪分析、红外热像检测、高压介损、局部放电测量等有效技术手段
准确推断出故障的真实原因
并经解体检查发现了互感器内部存在局部放电故障。
Abstract
This article describes the fault of an oil-immersed current transformer due to internal insulation failure which cause oil chromatographic analysis failed. Through the effective technology methods including oil chromatographic tracking analysis
infrared thermography
high-voltage dielectric loss
partial discharge measurements
the exact causes of the failure are diagnosed. The internal partial discharge faults of transformer are found by strip inspection.