Testing of an HTS Power Cable Made from YBCO Tapes

Conference · Mon Jan 01 04:00:00 EST 2007

OSTI ID:930787

Gouge, Michael J ^[1]; Duckworth, Robert C ^[1]; Demko, Jonathan A ^[1]; Rey, Christopher M ^[1]; Lindsay, David T ^[1]; Roden, Mark L ^[1]; Tolbert, Jerry Carlton ^[1]

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1. ORNL

Oak Ridge National Laboratory (ORNL) has designed, built, and tested a 1.25-m-long, prototype high temperature superconducting (HTS) power cable made from second-generation YBa2Cu3Ox (YBCO)-coated conductor tapes. Electrical tests of this cable were performed in liquid nitrogen at 77 K. DC testing of the HTS cable included determination of the V-I curve with a critical current of about 2100 A, which was consistent with the critical currents of the two layers of 4.4-mm wide YBCO tapes. AC testing of the cable was conducted at currents up to about 1500 Arms. The ac losses were determined calorimetrically by measuring the response of a calibrated temperature sensor placed on the former and electrically by use of a Rogowski coil with a lock-in amplifier. Over-current testing was conducted at peak current values up to 4.9 kA for pulse lengths of 0.3-0.5 s. Test results are compared to earlier data from a 1.25-m-long power cable made from 1-cm-wide YBCO tapes and also comparable BSCCO cables. This commercial-grade HTS cable demonstrated the feasibility of second-generation YBCO tapes in an ac cable application.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: OE USDOE - Office of Electric Transmission and Distribution
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 930787
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
AC LOSSES
CABLES
CRITICAL CURRENT
LOCK-IN AMPLIFIERS
NITROGEN
ORNL
ROGOWSKI COIL
SUPERCONDUCTIVITY
TESTING
high-temperature superconductors
power transmission lines
superconducting cables