Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지

Dielectric characteristics of insulating oil for oil filled cables

Oil Filled 케이블용 절연유의 유전특성

  • 서정필 (서울산업대학 전기공학과) ;
  • 김왕곤 (서울산업대학 전기공학과) ;
  • 신성권 (동해전문대학 정보통신과) ;
  • 조경순 (광운대학교 전기공학과) ;
  • 홍징웅 (광운대학교 전기공학과)
  • Published : 1994.11.01

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Abstract

In order to investigate the dielectric characteristic insulating oil is chosen insulating oil for electric cable, and experiment is performed in the temperature range of 30∼120[$^{\circ}C$] and frequency range of 30∼1${\times}$10$\^$6/[㎐]. As a result, the observed linear decrease in tan $\delta$ value at the low frequency range is due to the influence of frequency, whereas the increase in tan $\delta$ value at high frequency range is contributed by the electrode's resistance and dielectric loss. The dipole moment and activation energy of specimen are obtained 1.22(debye) and 12.75∼18.66[㎉/㏖e] of high temperature region, 15.68 ∼ 20.6[㎉/㏖e] of low temperature region respectively.

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