Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2007.07a
- /
- Pages.894-895
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- 2007
Temperature Rise Prediction of 25.8kV 25kA Three-phase GIS Bus Bar
25.8kV 25kA 3상 GIS 모선의 온도상승 예측
- Kim, Joong-Kyoung (Dept. of Elec. Eng. Dong-A Univ.) ;
-
Hahn, Sung-Chin
(Dept. of Elec. Eng. Dong-A Univ.)
;
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Oh, Yeon-Ho
(Advanced Power Apparatus Group KERI)
;
-
Park, Kyong-Yop
(Advanced Power Apparatus Group KERI)
- Published : 2007.07.18
Abstract
This paper presents coupled analysis between finite element method and analytic technique for predicting temperature rise of 25.8kV 25kA three-phase GIS bus bar. The power losses and temperature distribution of three-phase GIS bus bar model are analyzed by magneto-thermal finite element method. The heat transfer coefficients on the boundaries are analytically calculated by applying Nusselt number considering material constant and model geometry for the natural convection. And these are used as the input data to predict the temperature rise of three-phase GIS bus bar model by coupled magneto-thermal F.E.A. The predicted temperature of 25.8kV 25kA three-phase GIS bus bar model shows good agreement with the experimental data.
Keywords