TYPE TEST RESULT FOR 22.9kV 50MVA HTS CABLE SYSTEM IN KOREA

摘要

High temperature superconducting (HTS) is regarded as one of the most promising technologies to satisfy the increasing needs for power demands in the future. In 2006, LS Cable developed HTS cable system including 100m long HTS cable, 3-phase in one cryostat terminations, joint box and cryogenic cooling system on the basis of technologies during 5 year various technical approaches including 6 months long term operation test for 30m HTS cable system in 2005. The developed HTS cable system was type tested following to the test specification which was proposed to IEC SB1 2006 in cooperation with KEPCO. The test loop was installed in the power testing center of Korea Electric Power Corporation (KEPCO) following to the on-site conditions such as 90 degree bend pipe duct, snakes in tunnel and on the ground including 180 degree U-bend. The proposed evaluation program consists of 30 days load cycle, severe thermal cycle, dielectric loss and security, partial discharge, DC critical current (Ic). The series of the test items has passed successfully.