Development of Current and Voltage Sensors for Distribution switchgears

로고스키 코일과 저항 분압기 원리를 이용한 배전급 전류/전압 센서 개발

  • Choe, W.J. (Electrotechnology R&D Center, LG Industrial Systems) ;
  • Sohn, J.M. (Electrotechnology R&D Center, LG Industrial Systems) ;
  • Lee, B.W. (Electrotechnology R&D Center, LG Industrial Systems) ;
  • Oh, I.S. (Electrotechnology R&D Center, LG Industrial Systems)
  • Published : 2003.07.21

Abstract

In the distribution networks, it is required to develop compact and smart current and voltage sensors for compact and digital switchgears. The sensor developed newly adopt the priciple of rogowski coil for current sensing and resistive voltage divider for voltage sensing. The sensing characteristics and reliabilities were improved compared to conventional ones. In the near future, these voltage and current sensing apparatus will be widely used with electronic protection units for the distribution switchgear.

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