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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.10 No.3
- 발행연도
- 2015.5
- 수록면
- 1,124 - 1,130 (7page)
이용수
초록· 키워드
오류제보하기
Moisture and high temperature are the most important factors that lead to the ageing of oil-paper insulation, but the research about space charge characteristics of oil-paper insulation does not take the combined effect of ambient temperature, moisture and thermal ageing into account. The pulsed electroacoustic (PEA) method was used to investigate the influence of moisture and temperature on space charge characteristics of oil paper at different ageing stages. The results showed that moisture could speed up formation of space charge in oil paper when water concentration was low, but the formation was restrained if the water concentration was high. At the beginning of thermal ageing, heterogeneous charge accumulation had predominance, but it gradually changed to homogeneous charge injection with ageing. It was believed that moisture concentration could speed up ageing and enhance charge accumulation on one hand, and accelerate or slow down the establishment speed of space charge on the other hand, therefore, charge accumulation type changed with ageing. The more seriously the oil-paper insulation was thermally aged, the deeper the trap energy level was, hence more space charge was trapped, which could be speeded up by increasing the ageing temperature, but the effect of ambient temperature did not fit the Arrhenius law.
목차
Abstract
1. Introduction
2. Experimental Details
3. Results and Discussions
4. Conclusion
References
참고문헌 (22)
참고문헌 신청
1. [학술대회논문] - M. Lessard / 1996 / Thermal ageing study of insulating papers used in power transformers / Electrical Insulation and Dielectric Phenomena : 854 ~ 859
2. [학술지(정기간행물)] - S. Q. Wang / 2012 / Effects of Paperaged State on Space Charge Characteristics in Oilimpregnated Paper Insulation / IEEE Trans. Dielectr. Electr. Insul 19 : 1871 ~ 1878
3. [학술지(정기간행물)] - D. Linhjell / 2007 / Dielectric response of mineral oil impregnated cellulose and the impact of ageing / IEEE Trans. Dielectr. Electr. Insul 14 : 156 ~ 169
4. [학술지(정기간행물)] - T. V. Oommen / 2006 / Cellulose insulation in oil-filled power transformers : part II maintainning insulation integrity and life / IEEE Electr. Insul. Mag 22 : 5 ~ 14
5. [학술지(정기간행물)] - Mizutani T / 1994 / Space charge measurement techniques and space charge in polyethylene / IEEE Trans. Dielectr. Electr. Insul 1 : 923 ~ 933
2. [학술지(정기간행물)] - S. Q. Wang / 2012 / Effects of Paperaged State on Space Charge Characteristics in Oilimpregnated Paper Insulation / IEEE Trans. Dielectr. Electr. Insul 19 : 1871 ~ 1878
3. [학술지(정기간행물)] - D. Linhjell / 2007 / Dielectric response of mineral oil impregnated cellulose and the impact of ageing / IEEE Trans. Dielectr. Electr. Insul 14 : 156 ~ 169
4. [학술지(정기간행물)] - T. V. Oommen / 2006 / Cellulose insulation in oil-filled power transformers : part II maintainning insulation integrity and life / IEEE Electr. Insul. Mag 22 : 5 ~ 14
5. [학술지(정기간행물)] - Mizutani T / 1994 / Space charge measurement techniques and space charge in polyethylene / IEEE Trans. Dielectr. Electr. Insul 1 : 923 ~ 933
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UCI(KEPA) : I410-ECN-0101-2016-560-001331271