- 著者
- Yasunobu Yoshida Shigekazu Katagiri Masato Kawaguchi
- 出版者
- 一般社団法人 電気学会
- 雑誌
- 電気学会論文誌B(電力・エネルギー部門誌) (ISSN:03854213)
- 巻号頁・発行日
- vol.123, no.5, pp.602-607, 2003 (Released:2004-03-31)
- 参考文献数
- 7
- 被引用文献数
- 1 1
This paper describes the temperature rise and the thermal stability of tank type power capacitors and a analyzing method of the stability and permissible overload factor using a computer. When capacitor is operated at high ambient temperature and under excessive high voltage, the temperature of the dielectric rises higher and in some cases the capacitor looses the thermal balance and finally breakdowns thermally.We measured the heat radiation coefficient and temperature rise of the capacitor, and clarified that the radiated heat calculated from the heat radiation coefficient and the area of the tank coincided with the generated heat calculated from the output of the capacitor and the loss factor of the dielectric. Furthermore we developed analyzing method of thermal stability and permissible overload factor of capacitors using a computer. By this analysis it becomes possible to know the permissible overload factor and the temperature of the capacitor dielectric without performing the temperature rise test which requires long time and much cost.