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
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.7 No.3
- 발행연도
- 2012.5
- 수록면
- 312 - 319 (8page)
이용수
초록· 키워드
오류제보하기
The life of a power transformer is dependent on the life of the cellulose paper, which influenced by the hot spot temperature. Thus, the determination of the cellulose paper’s life requires identifying the hot spot temperature of the transformer. Currently, however, the power transformer uses a heat run test is used in the factory test to measure top liquid temperature rise and average winding temperature rise, which is specified in its specification. The hot spot temperature is calculated by the winding resistance detected during the heat run test. This paper measures the hot spot temperature in the single-phase, 154kV, 15/20MVA power transformer by the optical fiber sensors and compares the value with the hot spot temperature calculated by the conventional heat run test in the factory test. To measure the hot spot temperature, ten optical fiber sensors were installed on both the high and low voltage winding; and the temperature distribution during the heat run test, three thermocouples were installed. The hot spot temperature shown in the heat run test was 92.6℃ on the low voltage winding. However, the hot spot temperature as measured by the optical fiber sensor appeared between turn 2 and turn 3 on the upper side of the low voltage winding, recording 105.9℃. The hot spot temperature of the low voltage winding as measured by the optical fiber sensor was 13.3℃ higher than the hot spot temperature calculated by the heat run test. Therefore, the hot spot factor (H) in IEC 60076-2 appeared to be 2.0.
목차
Abstract
1. Introduction
2. Manufacture of 154kV transformer to measurethe hot spot temperature
3. Hot spot temperature measurement in 154kVtransformer
4. Conclusion
References
참고문헌 (12)
참고문헌 신청
1. [학술지(정기간행물)] - Susa, D. / 2009 / A Simple Model for Calculating Transformer Hot-Spot Temperature / IEEE Transactions on Power Delivery 24 : 1257 ~ 1265
2. [보고서] - G. Sliter / 2003 / Life Cycle Management Planning Source books(Volume 4: Large Power Transformers) Final Report
3. [기타자료] - / 1995 / IEEE Guide for loading mineral-oilimmersed transformers / IEEE C57.91
4. [학술대회논문] - Bicen, Y. / 2011 / An assessment on aging model of IEEE/IEC standards for natural and mineral oilimmersed transformer / IEEE International Conference on Dielectric Liquids : 1 ~ 4
5. [학술대회논문] - Jian Li / 2009 / Hot spot temperature models based on top-oil temperature for oil immersed transformers / IEEE Conference on Electrical Insulation and Dielectric Phenomena : 55 ~ 58
2. [보고서] - G. Sliter / 2003 / Life Cycle Management Planning Source books(Volume 4: Large Power Transformers) Final Report
3. [기타자료] - / 1995 / IEEE Guide for loading mineral-oilimmersed transformers / IEEE C57.91
4. [학술대회논문] - Bicen, Y. / 2011 / An assessment on aging model of IEEE/IEC standards for natural and mineral oilimmersed transformer / IEEE International Conference on Dielectric Liquids : 1 ~ 4
5. [학술대회논문] - Jian Li / 2009 / Hot spot temperature models based on top-oil temperature for oil immersed transformers / IEEE Conference on Electrical Insulation and Dielectric Phenomena : 55 ~ 58
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