Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.11a
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- Pages.97-99
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- 1998
Analysis of Impulse Response of Power Transformer using Electric Equivalent Circuit
등가회로를 이용한 전력용 변압기의 과도응답 특성 해석
- Chang, Kyung-Woon (Seoul National University) ;
- Hahn, Song-Yop (Seoul National University)
- Published : 1998.11.28
Abstract
This paper presents a numerical study of the behavior of the transformer winding, when stressed by the standard impulse voltage. The mathematical model of the transformer takes several points into the account. Capacitance of not adjacent winding as well as adjacent winding, eddy current loss caused by self and mutual inductance given as the functions of frequency. Not like the previous approach where calculation of capacitance is performed, in average sense. In this paper, capacitance of both adjacent and not adjacent winding is calculated using the numerical approach(B.E.M.), so they can get the more accurate value of capacitance. Because of frequency dependency of inductance, numerical-laplace-transform technique is required. Finally, to validate this approach, a simple test winding is simulated.
Keywords