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U.S. Department of Energy
Office of Scientific and Technical Information

Protective device for DC regulated power supplies for superconducting magnet coils

Patent ·
OSTI ID:6308943
A protective device for use with a DC regulated power supply for supplying DC current to a superconducting magnet coil includes a pair of flywheel diodes and a protective resistance connected in parallel with the superconducting magnet coil. When the DC regulated power supply malfunctions, the superconducting magnet coil is severed from the power supply, and the flywheel diodes take up the energy stored in the superconducting magnet coil to reduce the current flowing through the DC regulated power supply to zero instantaneously. When the superconducting magnet coil has a fault, the coil is separated from the DC regulated power supply, and the protective resistance takes up the energy stored in the superconducting magnet coil.
Assignee:
Mitsubishi Denki Kabushiki Kaisha (Japan)
Patent Number(s):
US 4467384
OSTI ID:
6308943
Country of Publication:
United States
Language:
English