대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2002년도 하계학술대회 논문집 B
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- Pages.808-810
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- 2002
CFD-CAD 통합해석을 이용한 전력기기 온도상승 예측
Prediction of temperature rise of Electric Switching Device Using CFD-CAD Integrated Analysis
- Ahn, Heui-Sub (Electrotechnology R&D Center, LG Industrial Systems) ;
- Lee, Jong-C. (Electrotechnology R&D Center, LG Industrial Systems) ;
- Choi, Jong-Ung (Electrotechnology R&D Center, LG Industrial Systems) ;
- Oh, Il-Sung (Electrotechnology R&D Center, LG Industrial Systems)
- 발행 : 2002.07.10
초록
Higher current-rating and improved thermal performance are being sought for existing medium-voltage vacuum circuit breakers(VCB) in order to meet market needs which require to be compact and downsized. In this paper, thermal performance of medium voltage vacuum circuit breaker was investigated through experiments and numerical analysis. We changed several major parameters of current-rating and heat sink affecting on thermal behaviors in the breaker and observed the results. To predict the temperature distribution in complex three-dimensional (3-D) VCB components and gas, the commercial package was used to simulate conjugate heat transfer. Although some assumptions and simplifications were introduced to simulate the model, results from the computational model were in good agreement with actual temperature rise measurements obtained from experiments.
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