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Study of GIS disconnector internal fever by simulation and experiment

机译:通过仿真和实验研究GIS隔离部件内发

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Fever due to poor contact are one of the important reasons leading to the failure of GIS equipment. However, more researches on the heating characteristics and detection methods of GIS contacts are needed. In this paper, a finite element model of true type 550kV GIS disconnector is established to study the heating characteristics and the temperature distribution with different contact resistance and loads. A heating test platform of 550kV GIS is established in laboratory, the contact and shell temperatures are measured with different contact resistance and loads to compare with simulation results. The results indicate that there is a corresponding relationship between contact temperature and shell temperature of GIS disconnector, and the temperatures are positively associated with contact resistance and loads. The shell temperature can be regarded as the characteristic quantity indicating the state of GIS disconnector.
机译:由于接触不良而发烧是导致GIS设备失败的重要原因之一。然而,需要对加热特性和GIS触点的检测方法进行更多研究。在本文中,建立了真正的550kV GIS隔离磁带的有限元模型,以研究采用不同接触电阻和负载的加热特性和温度分布。在实验室建立了550kV GIS的加热测试平台,用不同的接触电阻和载荷测量接触和壳温度,以比较模拟结果。结果表明,GIS隔离开关的接触温度和壳温度之间存在相应的关系,并且温度与接触电阻和负载正相关。壳温可被视为指示GIS隔离开关状态的特征量。

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