Abstract
基于传热学原理建立了10 kV干式变压器的多物理场模型,包括能够表征固体传热和共轭传热的二维和三维物理模型。确定了10 kV干式变压器损耗的计算方法,得出了不同外部环境温度下的变压器温度场分布规律。基于温度场分布能够掌握10 kV干式变压器的实时运行状况,也可用于确定变压器发生其它类型故障时的最高工作温度点,为变压器的运行状态监测及热电偶埋设提供指导。 A multi-physics model of 10 kV dry-type transformer is established based on the heat transfer theory, including 2D and 3D model that are able to characterize the solid heating and conjugate heating. The calculation method of the 10 kV dry-type transformer losses is determined; trans-former temperature field distribution in different external ambient temperature is obtained. Based on the temperature distribution, the real-time operating conditions and the maximum op-erating temperature when other failures occur are ensured, which provide a theoretical basis for transformer condition monitoring and thermocouple embedded.
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