Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07b
- /
- Pages.1216-1218
- /
- 2005
Characteristics of Multiply Laminated HTS tapes for the Windings of Large Power Superconducting Transformers
대용량 초전도 변압기 권선용 다중선재의 특성
-
Kim, W.S.
(Electrical Engineering and Science Research Institute)
;
- Lee, S. (Electrical Engineering and Science Research Institute) ;
- Hwang, Y.I. (Korea Polytechnic University) ;
- Chang, T. (Korea Polytechnic University) ;
- Lee, H.G. (Korea Polytechnic University) ;
-
Hong, G.W.
(Korea Polytechnic University)
;
-
Choi, K.D.
(Korea Polytechnic University)
;
- Hahn, S. (Electrical Engineering and Science Research Institute)
-
김우석
(기초전력연구원)
;
- 이승욱 (기초전력연구원) ;
- 황영인 (한국산업기술대학교) ;
- 장데레사 (한국산업기술대학교) ;
- 이희균 (한국산업기술대학교) ;
-
홍계원
(한국산업기술대학교)
;
-
최경달
(한국산업기술대학교)
;
- 한송엽 (기초전력연구원)
- Published : 2005.07.18
Abstract
A high temperature superconducting power transformer gets its advantages over the conventional ones when the rated capacity of the HTS transformer becomes 30 MVA or more. The standard capacity of the recent 154 kV/ 22.9 kV power transformer is 3 phase 60 MVA in Korea which means that the rated current of the secondary becomes more than 1,500 amps. Considering the current capacities of the HTS wires being developed recently, it is inevitable to use the HTS wires in parallel in order to be applied to the power transformer. But nonuniform distribution of currents and large AC losses are major problems in parallel HTS windings setting aside the difficulties of making parallel windings. To solve these problems, several kinds of multiply laminated HTS wires were fabricated and tested for the application of these multiple wire to an HTS power transformer. Test results were compared with that of each other and the best were selected for the application to an HTS power transformer.
Keywords