Title :
Installation and operation of the Southwire 30-meter high-temperature superconducting power cable
Author :
Stovall, J.P. ; Demko, J.A. ; Fisher, P.W. ; Gouge, M.J. ; Lue, J.W. ; Sinha, U.K. ; Armstrong, J.W. ; Hughey, R.L. ; Lindsay, D. ; Tolbert, J.C.
Author_Institution :
Oak Ridge Nat. Lab., TN, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
Southwire Company has installed, tested and is operating the first real-world application of a high-temperature superconducting cable system at its headquarters in Carrollton, GA, USA. The cable is powering three Southwire manufacturing plants, marking the first time a company has successfully made the difficult transition front laboratory to practical field application of an HTS cable. The cables are rated at 12.4-kV, 1250-A, 60 Hz and are cooled with pressurized liquid nitrogen at temperatures from 70-80 K. Before placing the cables into service, extensive offline electrical testing was performed including voltage withstand, measurement of DC critical current, extended load current testing, rated voltage testing and partial discharge measurement. The cables were energized on Jan. 5, 2000 for online testing and operation, and by the end of August 2000, had provided 100% of the customer load for 2164 hours
Keywords :
cable laying; electric current measurement; high-temperature superconductors; installation; insulation testing; partial discharge measurement; power cable insulation; power cable testing; superconducting cables; voltage measurement; 12.4 kV; 1250 A; 2164 h; 30 m; 60 Hz; 70 to 80 K; DC critical current measurement; extended load current testing; high-temperature superconducting power cable; offline electrical testing; partial discharge measurement; pressurized liquid nitrogen cooling; rated voltage testing; voltage withstand; Current measurement; High temperature superconductors; Laboratories; Manufacturing; Nitrogen; Partial discharge measurement; Performance evaluation; Superconducting cables; System testing; Voltage;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
