대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

변압기유의 전기적인 특성 (II)

Electrical Properties of Transformer Oils (II)

  • 이용우 (충남전문대학 전기과) ;
  • 조돈찬 (광운대학교 전기공학과) ;
  • 신만섭 (서울 산업대학교 전기공학과) ;
  • 이수원 (철도전문대학 전기신호과) ;
  • 홍진웅 (광운대학교 전기공학과)
  • Lee, Yong-Woo (Dep. of Electrical Engin., Chuing Nam Jonior College) ;
  • Cho, Don-Chan (Dep. of Electrical Engin., KwangWoon University) ;
  • Shin, Man-Seob (Dep. of Electrical Engin., Nat'l Seoul Polytechnic University) ;
  • Lee, Soo-Won (Dep. of Electrical and Signal Engin., Nat'l Railroad Junior College) ;
  • Hong, Jin-Woong (Dep. of Electrical Engin., KwangWoon University)
  • 발행 : 1995.07.20
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초록

In order to investigate the electrical properties for transformer oils, the dielectric properties and volume resistivity were made researches. To measure the characteristics of dielectric liquid, volume resistivity and dielectric loss, coaxial cylindrical liquid electrode was used, geometric capacitance was confirmed to 16[pF]. Highmegohm meter of VMG-1000 was used for measuring volume resistivity, the appling voltages were DC 100, 250, 500[V] in the temperature range of $20{\sim}100[^{\circ}C]$. Experiments for measuring the dielectric loss were performed at $20{\sim}120[^{\circ}C]$ in temperature range, $30{\sim}1.5{\times}10^5$[Hz] in frequency range and $300{\sim}1500$[mV] in voltage range and then, the result of experiment for the movement of carrier and the physical constants to contribute dielectric properties is introduced.

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