Long Term Performance Test of KEPCO HTS Power Cable

A project for verification of HTS power cable system by KEPCO (Korea Electric Power Corporation) was started in 2002. The HTS power cable system of 100 m, 22.9 kV, 1.25 kA has been installed and tested at the KEPCO's Gochang power testing center in Korea since 2006. A liquid nitrogen decompress...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2009-06, Vol.19 (3), p.1782-1784
Main Authors: Yang, Hyung Suk, Kim, Dong Lak, Sohn, Song Ho, Lim, Ji Hyun, Choi, Ha Ok, Choi, Yeon Suk, Lee, Byoung Seob, Jung, Won Moog, Ryoo, Hee Suk, Hwang, Si Dole
Format: Article
Language:English
Subjects:
AC loss
Air conditioning
Applied sciences
Cooling
Cooling systems
Design. Technologies. Operation analysis. Testing
Electric connection. Cables. Wiring
Electric power generation
Electrical engineering. Electrical power engineering
Electromagnets
Electronics
Exact sciences and technology
High temperature superconductors
HTS power cable system
Integrated circuits
Liquid nitrogen
Nitrogen
Operating temperature
Performance evaluation
Performance loss
performance test
Performance tests
Power cables
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Superconducting cables
Superconductivity
System testing
Thermal loading
Underground power cables
Various equipment and components
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Summary:A project for verification of HTS power cable system by KEPCO (Korea Electric Power Corporation) was started in 2002. The HTS power cable system of 100 m, 22.9 kV, 1.25 kA has been installed and tested at the KEPCO's Gochang power testing center in Korea since 2006. A liquid nitrogen decompression cooling system with a cooling capacity of 3 kW at 66 K and a closed-circulation system of subcooled liquid nitrogen were employed for this purpose. Several performance tests for the HTS power cable system, such as cooling capacity, electrical loading, heat load, AC loss and temperature stability, were performed at operating temperature of 66.4 K. Thermal cycle test including cool-down to liquid nitrogen temperature and warming up to room temperature, was also performed to investigate thermal cycle influences for 8 times. The reliability through the several demonstration tests over than 8,000 hours was proved.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2009.2019059