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논문 기본 정보

자료유형
학술저널
저자정보
Xiao Liu (Chongqing University) Ruijin Liao (Chongqing University) Yandong Lv (Alstom Grid Technology Center) Jiefeng Liu (Chongqing University) Jun Gao (Chongqing University) Jian Hao (State Grid Chongqing Electric Power)
저널정보
대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.10 No.3
발행연도
2015.5
수록면
1,107 - 1,113 (7page)

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초록· 키워드

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Test temperature is an important factor affecting the measurement results of dielectric response of field power transformers. In order to better apply the polarization and depolarization current (PDC) to the condition monitoring of oil-paper insulation system in power transformers, the influences and elimination method of test temperature on PDC characteristic spectroscopy (PDC-CS) were investigated. Firstly, the experimental winding sample was measured by PDC method at different test temperatures, then the PDC-CS was obtained from the measurement results and its changing rules were discussed, which show that the PDC-CS appears a horizontal mobility with the rise of temperature. Based on the rules, the “time temperature shift technique” was introduced to eliminate the influence of test temperature. It is shown that the PDC-CS at different test temperatures can be converted to the same reference temperature coincident with each other.

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Abstract
1. Introduction
2. Preparation of Test Sample and PDC Measurement
3. Test results and analysis
4. Conclusion
References

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