지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.11
- 수록면
- 2,097 - 2,102 (6page)
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초록· 키워드
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Discharge analysis technique for dielectric liquid was presented by using the Finite Element Analysis (FEA) under a lightning impulse incorporating two-phase flow phenomena which described gas and liquid phases in discharge space. Until now, the response of step voltage has been extensively explored, but that of lightning impulse voltage was rarely viewed in the literature. We, therefore, developed an analyzing technique for dielectric liquid in a tip-sphere electrode stressed by a high electric field. To capture the bubble phase, the Heaviside function was introduced mathematically and the material functions for the ionization, dissociation, recombination, and attachment were defined in liquid and bubble, respectively. By using this numerical setup, the molecular dissociation and ionization mechanisms were tested under low and high electric fields resulted from the lightning impulse voltage of 1.2/50 μs. To verify our numerical results, the velocity of electric field wave was measured and compared to the previous experimental results which can be viewed in many papers. Those results had good agreement with each other.
목차
Abstract
1. 서론
2. 2상유동이 고려된 방전해석 모델
3. 결론
감사의 글
참고문헌
저자소개
참고문헌 (10)
참고문헌 신청
Markus Zahn / 1997 / Solid, Liquid, and Gaseous Electrical Insulation,” / Encyclopedia of Applied Physics, VCH Publishers, American Institute of Physics 18:431~466
F. M. O’Sullivan / 2007 / A Model for the Initiation and Propagation of Electrical Streamers in Transformer Oil and Transformer Oil Based Nanofluids
F. M. Meek / 1978 / Electrical Breakdown of Gases / John Willey & Sons
G. Massala / 1998 / Positive Streamer Propagation in Large Oil Gaps: Electrical Properties of Streamers / IEEE Trans. Diel. Elec. Insul 5(3)
O. Lesaint / 2002 / Streamer Initiation in Mineral Oil: Electrode Surface Effect under Impulse Voltage / IEEE Trans. Diel. Elec. Insul 9(1)
F. M. O’Sullivan / 2007 / A Model for the Initiation and Propagation of Electrical Streamers in Transformer Oil and Transformer Oil Based Nanofluids
F. M. Meek / 1978 / Electrical Breakdown of Gases / John Willey & Sons
G. Massala / 1998 / Positive Streamer Propagation in Large Oil Gaps: Electrical Properties of Streamers / IEEE Trans. Diel. Elec. Insul 5(3)
O. Lesaint / 2002 / Streamer Initiation in Mineral Oil: Electrode Surface Effect under Impulse Voltage / IEEE Trans. Diel. Elec. Insul 9(1)
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UCI(KEPA) : I410-ECN-0101-2013-560-000938467