Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Development and Its Characteristics of 7-dial Inductive Voltage Divider

7-dial Inductive Voltage Divider 제작과 그 특성 분석

  • 김한준 (한국표준과학연구원 전자기표준부 전기그룹) ;
  • 이래덕 (한국표준과학연구원 전자기표준부 전기그룹) ;
  • 강전홍 (한국표준과학연구원 전자기표준부 전기그룹) ;
  • 한상옥 (충남대학교 전기공학과)
  • Published : 1999.07.19
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Abstract

The 7-dial inductive voltage divider (IVD) which is divided the in put voltage precisely upto 10-7 were fabricated by using the toroidal cores made of super-mumetal strips of 0.025 mm thick and special decade switches. The cores ate of the initial permeability of 200,000 and magnetic flux density of 0.5 T. The in phase and quadrature ratio errors are evaluated to less than ${\pm}4{\times}10^{-7}$ and ${\pm}5{\times}10^{-6}$ rad. respectively. The fabrication techniques used are more discussed in this paper.

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