DC Critical Current Test Method for 22.9 kV/50 MVA Superconducting Power Cable Considering the Uncertainty

• Published in: IEEE transactions on applied superconductivity Vol. 20; no. 3; pp. 1272 - 1275
• Main Authors: Choi, Sukjin, Lee, Sangjin, Sim, Kideok, Cho, Jeonwook, Lee, Soogil, Lee, Sang-Geun, Lee, Kyu Won, Lee, Sang Young, Kim, Dong Ho, Ko, Tae Kuk
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2010; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Critical current; Critical current (superconductivity); DC critical current; Direct current; Electric connection. Cables. Wiring; Electric power generation; Electrical engineering. Electrical power engineering; Electromagnets; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics; Electronics; Exact sciences and technology; IEC standards; Power cables; Power grids; Power systems; Standards organizations; Superconducting cables; superconducting power cable; Superconducting transmission lines; Superconductivity; Testing; Testing. Reliability. Quality control; Uncertainty; Various equipment and components; Voltage; voltage tap; Asia; Korea; Power cables; Standardization; voltage tap; Power electronics; DC critical current; superconducting power cable; uncertainty; Critical current; Electrical network; Direct current; Electric power; Power device; Test method; IEC standard; Superconducting cable; Comparative study
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2010.2043519

In Korea, the superconducting power cable has been developed since 2001, with the basic specifications of 22.9 kV/50 MVA. The superconducting power cable can carry more than 2 to 5 times higher electric power compared with conventional ones. It is important to test the DC critical current related with its power capacity before applying to the real power grid. In 1995, several international standards organizations including IEC, decided to unify the use of statistical terms related with "accuracy" or "precision" in their standards. It was decided to use the word "uncertainty" for all quantitative (associated with a number) statistical expressions. In this paper, we measured DC critical current of 22.9 kV/50 MVA superconducting power cable with several voltage tap and analyzed the uncertainty with these results. These analyzed results can be applied the standardization of the superconducting power cable.