INSULATION THICKNESS DESIGN PROCESS OF HIGHTEMPERATURE SUPERCONDUCTION CABLE USING CONVERSION COEFFICIENT

摘要

An insulation thickness design process of a high temperature superconduction cable using a conversion coefficient is provided to design the insulation thickness of a 22.9kV high temperature superconduction cable, by setting AC breakdown electric field characteristics, impulse breakdown electric field characteristics and partial discharge start electric field characteristics of a PPLP(Poly Propylene Laminated Paper) and setting a conversion coefficient. In an insulation thickness design process of a 22.9kV high temperature superconduction cable having hybrid insulation configuration of liquid nitrogen and an insulation paper, AC conversion coefficient(Mac) and impulse conversion coefficient(Mimp) with a model cable are applied to AC breakdown electric field, impulse breakdown electric field and partial discharge start electric field value as to a sheet sample of the insulation paper PPLP(PolyPropylene Laminated Paper).