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Abstract-High-temperature superconductors motors driven by power electronics or its startup requires an insulation system which prevents pulse voltage in Liquid Nitrogen.Materials like polyimide(PI) or fiber reinforced plastic materials are usually used in insulation system because of its high performance.Due to driven by power electrics,repetitive square wave voltage(RSWV) will be more appropriate than sinusoidal wave.So this paper presents characteristic of partial discharge(PD) of coil used Kapton under RSWV in liquid nitrogen(LN2).RSWV which has different parameters such as rise/fall time,frequency and duty cycle will significantly influence PD characteristics.Therefore,each condition will be measured by five same samples and same parameters of RSWV except rise time.The results,experimental site and more details will be introduced.
Index Term-insulation partial discharge repetitive square wave voltage liquid nitrogen
