Precise High Voltage Measurement System Using Ceramic Stack Element for Voltage Divider

분압용 세라믹 적층 소자를 이용하 정밀 고전압 계측 시스템

  • 윤광희 (세명대학교 전기공학과) ;
  • 류주현 (세명대학교 전기공학과) ;
  • 박창엽 (세명대학교 전기공학과) ;
  • 정영호 (한전 전력연구원 배전자동화 기술그룹) ;
  • 하복남 (한전 전력연구원 배전자동화 기술그룹)
  • Published : 2000.04.01

Abstract

In order to accurately measure the high voltage of 22.9[kV] power distribution lines we investigated the temperature dependence of measuring voltage on the number of stack layers in the voltage measurement system made from single and stack voltage divider capacitors (22, 44, 66 layers, respectively). Temperature coefficient of dielectric constant(TC$\varepsilon_{{\gamma}}$/)of voltage divider capacitors which were fabricated by BaTi $O_3$system ceramics showed the variations from -2.28% to +1.69% in the range of -25[$^{\circ}C$] ~50[$^{\circ}C$]) was decreased with increasing of stack number and the stack element of 66 layers showed the least error of $\pm$0.87%or of $\pm$0.87%.

References

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