✦ LIBER ✦

Frequency dependence of quench current of a.c. superconducting winding for linear induction motor

✍ Scribed by N. Amemiya; T. Sugita; T. Takao; O. Tsukamoto; Y. Tanaka; K. Oishi; H. Shimizu; S. Sato; Y. Yoneyama; S. Yatabe

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 464 KB
Volume: 31
Category: Article
ISSN: 0011-2275
DOI: 10.1016/0011-2275(91)90058-5

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✦ Synopsis

The frequency dependence of the quench current of the epoxy-impregnated windings of a superconducting linear induction motor (SLIM) has been measured at f = 20-300 Hz; the quench current decreases with increasing frequency. The a.c. losses of SLIM windings have been measured and the temperature rise of the windings due to the a.c. losses studied by a numerical analysis using the finite element method. Reasons for the decrease in quench current with increasing frequency are discussed in relation to the a.c. losses.