Abstract:A high voltage current transformer of the inverted type is a commonly used measurement equipment in power grids. The thermal behaviour of the current transformer has a significant impact on its operating conditions and is directly related to its service life. The study presents a three-dimensional simulation model of a 220 kV inverted-type oilimmersed current transformer, and the fluid and temperature field are analysed by the finite volume method. The simulation results show that the hot-spot temperature unde… Show more
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