Title :
Fabrication and Installation Results for Albany HTS Cable
Author :
Masuda, Takato ; Yumura, Hiroyasu ; Watanabe, M. ; Takigawa, Hiroshi ; Ashibe, Y. ; Suzawa, Chizuru ; Ito, H. ; Hirose, Masayuki ; Sato, Kenichi ; Isojima, Shigeki ; Weber, C. ; Lee, Ron ; Moscovic, Jon
Author_Institution :
Sumitomo Electr. Ind. Ltd., Osaka
fDate :
6/1/2007 12:00:00 AM
Abstract :
The Albany project has installed a high temperature superconducting (HTS) cable with a 350 m length in 34.5 kV and 800 Arms in the real power grid of the National Grid Power Company. The type of the cable is a 3 cores in a cryostat. Bi-2223 wires manufactured with SEI new sintering method, CT-OP, is used as both superconducting conductor and shield. The Cable was manufactured and shipped to the Albany test site after passing various tests such as Ic measurement, voltage tests, pressurized tests, and so on. Cable installations into a 320 m long conduits and a 30 m long conduit under ground was completed successfully. The cable was pulled with 2.5 ton tension, which is within its allowable limit. A joint between the 320 m cable and the 30 m cable was assembled in an underground vault. Cable terminations were also assembled at both ends of the cable. After all of the installation, the initial cooling was conducted successfully and then in-grid operation was started on July 20th in 2006 after confirmation of cable performance.
Keywords :
bismuth compounds; cable shielding; calcium compounds; cryostats; high-temperature superconductors; strontium compounds; superconducting cables; Bi-2223 wires; BiSrCaCuO - System; cable installations; cooling; cryostat; high temperature superconducting cable; power cable joint; pressurized tests; sintering; size 30 m; size 320 m; size 350 m; superconducting conductor; superconducting shield; underground vault; voltage tests; Arm; Assembly; Cable shielding; Fabrication; High temperature superconductors; Integrated circuit testing; Manufacturing; Superconducting cables; Superconducting filaments and wires; Superconducting transmission lines; High-temperature superconductors; power cable installation; power cable joint; superconducting cables;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.898122