Title :
A study on stability of rotating magnets
Author :
Higuchi, N. ; Kaiho, K. ; Ishii, I. ; Nomura, H. ; Tateishi, H. ; Fuchino, S. ; Arai, K. ; Sekine, S. ; Natori, N. ; Kajikawa, K. ; Tamada, N. ; Onishi, T. ; Aiba, T. ; Iimura, T.
Author_Institution :
Electrotech. Lab., Tsukuba, Japan
fDate :
7/1/1996 12:00:00 AM
Abstract :
Stabilities of magnets in a high gravitational field up to 2000 G are discussed, based upon the experimental results of forced quench tests in a set of rotating magnets, in order to establish the stability design criterion of field windings of superconducting generators. Relations of propagation velocities, recovery currents, minimum quench energy and heat transfer characteristics are studied, a good agreement between the experimental results and a theory confirmed the improvement of magnet stability in a high gravitational field because of the enhanced heat transfer characteristics
Keywords :
electric generators; heat transfer; machine testing; machine windings; superconducting machines; superconducting magnets; thermal analysis; field windings; forced quench tests; gravitational field; heat transfer characteristics; minimum quench energy; propagation velocities; recovery currents; rotating magnets; stability design criterion; superconducting generators; Heat recovery; Heat transfer; Magnetic shielding; Power generation; Shafts; Stability criteria; Superconducting coils; Superconducting magnets; Testing; Wounds;
Journal_Title :
Magnetics, IEEE Transactions on
