Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Including superconductivity
Patent
1988-06-22
1989-09-19
Hix, L. T.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Including superconductivity
335216, H01H 4700
Patent
active
048687073
ABSTRACT:
A superconducting electromagnet apparatus wherein a superconducting main coil and a superconducting shield coil for reducing external magnetic field leakage generated by the main coil are magnetically, but not electrically, coupled, a single magnetizing power source is connected across the main coil, and persistent currect switches are respectively connected in parallel with the main coil and the shield coil.
REFERENCES:
patent: 3419904 (1968-12-01), Weaver et al.
patent: 3818396 (1974-06-01), Raphael
patent: 4535291 (1985-08-01), Lee et al.
Gray David M.
Hix L. T,.
Mitsubishi Denki & Kabushiki Kaisha
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