Heater-induced quenches in a model field winding for the 70MW class superconducting generator

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6090108

Yoshimura, H; Ueda, A; Morita, M; Maeda, S; Nagao, M; Shimohata, K; Matsuo, Y; Nagata, Y; Yamada, T ^[1]; Tanaka, M ^[2]

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1. Mitsubishi Electric Corp., Amagasaki, Hyogo (Japan)
2. Super-GM, Umeda UN Bldg., 5-14-10 Nishitenma, Kita-ku 530 (JP)

This paper reports on quench studies performed using a model field winding for the 70MW class superconducting generator to investigate the minimum quench energy, the longitudinal and turn-to-turn quench propagation velocities and the temperature rise of the hot spot. The model field winding is a racetrack coil with 88 turns which was wound in a slot of the support structure and compressed by a flange. The stranded cable of 15 strands was selected as a conductor to reduce ac losses that will be generated at the system fault. A ceramic chip heater was glued on the surface of the racetrack coil to initiate quenches.

• OSTI ID: 6090108
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AC LOSSES
ALLOYS
CHROMEL
COMPRESSION
COPPER ALLOYS
DESIGN
ELECTRIC GENERATORS
ENERGY LOSSES
EQUIPMENT PROTECTION DEVICES
HEATERS
IRON ADDITIONS
IRON ALLOYS
LOSSES
MEASURING INSTRUMENTS
NICKEL ALLOYS
NICKEL BASE ALLOYS
QUENCHING
SUPERCONDUCTING COILS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING GENERATORS
TEMPERATURE MEASUREMENT
THERMOCOUPLES