Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07b
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- Pages.990-992
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- 2005
Prediction of Temperature Rise in EHV GIS Bus Bar by Coupled Magneto-Thermal F.E A
자계-열계를 결합한 초고압 GIS용 모선의 온도상승 예측
- Kim, Joong-Kyoung (Dept. of Elec. Eng. Dong-A Univ.) ;
- Min, Kyung-Jo (Dept. of Elec. Eng. Dong-A Univ.) ;
- Kim, Han-Kyun (Dept. of Elec. Eng. Dong-A Univ.) ;
- Hahn, Sung-Chin (Dept. of Elec. Eng. Dong-A Univ.)
- Published : 2005.07.18
Abstract
This paper presents a new magneto-thermal finite element analysis for predicting the temperature rise of the EHV GIS bus bar. The power losses of a bus bar calculated by the magnetic field analysis are used as the input data to predict the temperature rise for the thermal analysis. The heat-transfer coefficients on the boundaries are analytically calculated by applying the Nusselt number considering material constant and model geometry for the natural convection. The temperature distribution in a bus bar by coupled magneto-thermal finite element analysis shows good agreement with the experimental data.
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