Performance Test of 100 m HTS Power Cable System

Author

Lim, J.H. ; Sohn, S.H. ; Ryoo, H.S. ; Choi, H.O. ; Yang, H.S. ; Kim, D.L. ; Ma, Y.H. ; Ryu, K. ; Hwang, S.D.

Author_Institution

Korea Electr. Power Res. Inst., Daejeon, South Korea

Volume

19

Issue

3

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1710

Lastpage

1713

Abstract

In order to meet the needs of economical and stable power supply and high current density cable with compact size, several countries carry out researches on high temperature superconducting (HTS) cables. Korea Electric Power Corporation (KEPCO) established the HTS cable test center and installed 22.9 kV, 1250 A, 50 MVA, 100 m class HTS cable system to investigate the performances and application possibility in real power grids. The HTS cable system went through seven cool down and warm-up cycles and also many kinds of performance tests for 3 years. Rated voltage-current tests, over voltage tests, and measurements of heat loss and AC loss with various currents have been examined. Moreover, DC critical current tests were performed for checking conductor degradation before warming up or after cooling down. Through the performance tests of the HTS cable system, the overall efficiency and loss factors are estimated and compared with conventional power cables in this paper. We conclude the present status of HTS cable system and application possibility in the real power grid.

Keywords

high-temperature superconductors; power cable testing; superconducting cables; AC loss; DC critical current tests; HTS power cable system; KEPCO; Korea Electric Power Corporation; apparent power 50 MVA; conductor degradation; current 1250 A; distance 100 m; heat loss; high current density cable; high temperature superconducting; power grids; stable power supply; voltage 22.9 kV; DC critical current; HTS cable system; overall efficiency; power loss measurement;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2009.2018053

Filename

5109548