DocumentCode :
1412491
Title :
Progress on the Performance Test of KEPCO HTS Power Cable
Author :
Choi, Y.S. ; Kim, D.L. ; Yang, H.S. ; Sohn, S.H. ; Lim, J.H. ; Hwang, S.D.
Author_Institution :
Korea Basic Sci. Inst., Daejeon, South Korea
Volume :
21
Issue :
3
fYear :
2011
fDate :
6/1/2011 12:00:00 AM
Firstpage :
1034
Lastpage :
1037
Abstract :
The Korea Electric Power Corporation (KEPCO) HTS power cable has been successfully installed and operated for feasible confirmation since 2006 at Gochang power test center. The 3-phase 100 m long HTS power cable with 22.9 kV/1.25 kA was manufactured and cooled by subcooled liquid nitrogen. At the beginning stage, the cooling system was composed of a liquid nitrogen decompression cooling unit. No major fault has been observed during long term operating test. As a next step, cooling system was modified that a cryocooler was employed, resulting in the total cooling capacity of 4 kW at liquid nitrogen temperature. In this paper, the progress on the performance test of HTS power cable is reported. Temperature as well as pressure in the system is discussed with respect to the supplied current levels. Also, the installation of hybrid cooling system for real power grid application is described.
Keywords :
cooling; high-temperature superconductors; power cable testing; power grids; KEPCO HTS power cable; Korea Electric Power Corporation; cryocooler; hybrid cooling system; liquid nitrogen decompression cooling unit; liquid nitrogen temperature; performance test; power 4 kW; power grid application; size 100 m; subcooled liquid nitrogen; Cooling; Heating; High temperature superconductors; Nitrogen; Power cables; Superconducting cables; Temperature distribution; Cooling system; high temperature superconductor; power cable;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2010.2093496
Filename :
5675707
Link To Document :
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