Current feed for a super-conducting magnet coil

Details Current feed for a super-conducting magnet coil Current feed for a super-conducting magnet coil

1979-12-27

1982-02-02

Shepperd, John W.

Electricity: circuit makers and breakers

Electric switch details

Contact

200239, 200267, H01H 162

Patent

active

043141234

ABSTRACT:
In a current feed for a superconducting magnet coil that can be short circuited, with a disconnecting device for separating a movable from a stationary cooled contact element, the mass ratio of the cooled contact element to the movable contact element is at least 5:1 and the cooled contact element is of elongated shape in the direction of the current flow, has a thermal resistance of at least 0.2 K/W for each 1000 amperes of current to be transmitted, has its end facing away from the contact region provided with cooling fins and is connected to the end of the coil, thereby keeping the amount of heat transmitted from the warm to the cold contact element relatively small and preventing undue warming of the coil end.

REFERENCES:
patent: 3278808 (1966-10-01), Bonfeld
patent: 3469050 (1969-09-01), Robinson et al.
patent: 3521207 (1970-07-01), Britton et al.
patent: 3551861 (1970-12-01), Boom et al.
patent: 3689856 (1972-09-01), Lambert et al.
patent: 3839689 (1974-10-01), Biltcliffe et al.

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