一起252kV GIS断路器异常发热缺陷分析

Analysis of abnormal heat defect of 252kV GIS circuit breaker

摘要:

本文针对一起220kV GIS设备断路器壳体发热缺陷进行了详细分析，利用红外热像图谱、X射线诊断技术、回路电阻测试等试验手段判断了缺陷性质，结合设备结构特点，进行分段测试后准确定位出缺陷位置并分析了故障原因，并通过解体检测验证了诊断结论，为GIS断路器类似故障诊断分析提供了科学依据，并对GIS断路器的运维提出了建议。

Abstract:

In this paper, a heat defect of 220kV GIS circuit breaker is analyzed in detail. The defect is judged by infrared thermography, X-ray diagnosis technology, loop resistance test and other test methods. Combined with the structural characteristics of the equipment, the defect location is accurately located and the heat reason is analyzed. The diagnosis conclusion is verified by disassembly detection. It provides a scientific basis for similar fault diagnosis and analysis, and puts forward some suggestions for operation and maintenance of GIS .