Dielectric Characteristics of Composite dielectric Film for Pulsed Power Capacitors

커패시터용 복합유전체필름의 유전특성 분석

  • 박재도 (숭실대학교 전기공학과) ;
  • 곽희로 (숭실대학교 전기공학과) ;
  • 박하용 (삼척대학교 전기공학과) ;
  • 정종욱 (한국전력공사 전력연구원)
  • Published : 2001.07.18

Abstract

This paper describes the dielectric characteristics of composite dielectric film for pulsed power capacitors. The relative electric permittivity(${\varepsilon}'$) and the dielectric dissipation factor(tan$\delta$) were measured for polypropylene (PP) membranes, kraft paper for capacitors(CP) and composite dielectric films(PP+CP), respectively, in a frequency range of $1{\sim}10^4$[Hz], and in temperatures ranging from -50[$^{\circ}C$] to 110[$^{\circ}C$]. As a result, the variation of the electric permittivity was observed similarly for PP and CP. Dielectric dispersion was observed in frequency domain in PP, CP and composite dielectric films.

Keywords