Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2004.11d
- /
- Pages.97-99
- /
- 2004
The Evaluation of Characteristics for Insulating Oil Using the Distribution Transformer
배전용 변압기 절연유의 특성 비교 평가
- Lee, Byung-Sung (KEPRI KEPCO) ;
- Park, Young-Keun (KEPRI KEPCO) ;
-
Kim, Dong-Myung
(KEPRI KEPCO) ;
- Kim, Pil-Hwan (Chungnam Nat'l Univ.) ;
-
Han, Sang-Ok
(Chungnam Nat'l Univ.)
- Published : 2004.11.12
Abstract
Liquid-immersed pole transformers have utilized an insulation system consisting of natural cellulose-based materials and mineral oil for many years. If the transformers are installed with the abruptly changing load over limitation, its insulation materials are apt to unexpected aging with high temperature. Therefore we have been conscious of developing a transformer that is more thermally stable then conventional types. To measure temperature distribution in the winding of conventional and newly designed transformers, temperature sensors were installed fordirect reading of oil and conductor temperatures at transformers. And we conducted accelerating aging test for these transformers. The measuring data had made use of the design to hybrid insulation system. Also we could find the possibility of this insulation system to apply in pole mounted transformers.
Keywords