Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2007.11a
- /
- Pages.242-242
- /
- 2007
Influence of Thermal Cycle Test of a 22.9 kV High Temperature Superconducting Cable System
22.9 kV 초전도케이블 시스템의 Thermal Cycle Test 영향
- Sohn, S.H. (KEPRI) ;
- Lim, J.H. (KEPRI) ;
-
Yang, H.S.
(KBSI)
;
-
Ryoo, H.S.
(KERI)
;
- Choi, H.O. (KBSI) ;
-
Sung, T.H.
(KEPRI)
;
-
Kim, D.L.
(KBSI)
;
-
Hwang, S.D.
(KEPRI)
- 손송호 (한전 전력연구원) ;
- 임지현 (한전 전력연구원) ;
-
양형석
(한국기초과학지원연구원)
;
-
류희석
(한국전기연구원)
;
- 최하옥 (한국기초과학지원연구원) ;
-
성태현
(한전 전력연구원)
;
-
김동락
(한국기초과학지원연구원)
;
-
황시돌
(한전 전력연구원)
- Published : 2007.11.01
Abstract
To verify the applicability of High Temperature Superconducting (HTS) cable system into the real grid, the HTS cable system with the specification of 22.9 kV, 1250 A, 100 m long was installed in the second quarter of 2006, and the long term field test has been in progress at the KEPCO's Gochang power testing yard. Apart from the conventional power cable, HTS cable system requires sufficient thermo-mechanical strength to endure a large temperature difference. To date, the KEPCO HTS cable system was cooled down and warmed to the room temperature several times to investigate the influence of thermal cycles experimentally. Dielectric properties, critical current dependance and heat losses were evaluated at each step of thermal cycle. The test results showed that thermal cycle did not induce the degradation of dielectric properties, and the critical current decreased to 5 % of the initial value.
Keywords