AC loss measurement of the SMES/CIC conductor

✍ Scribed by S.W. Van Sciver; K. Bartholomew; A. Bonito Oliva; S. Welton

• Book ID: 104110769
• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 337 KB
• Volume: 34
• Category: Article
• ISSN: 0011-2275
• DOI: 10.1016/s0011-2275(05)80144-4

✦ Synopsis

We have performed a calorimetric measurement of the AC loss in a Cable-in-Conduit (CIC) conductor for the superconductive magnetic energy storage (SMES) application. A new technique is used based on the temperature rise in the He II in contact with the conductor. The sample is located in a cryostat and placed in the bore of a superconducting dipole magnet. A change in the transverse field produces an easily measurable temperature increase. The approach is used to measure the loss in a length of conductor developed as part of the Bechtel SMES-ETM project. The time constant measured for this sample is found to be 8.5 s, which is in the range of values estimated from a simple coupling current model.