Method of cooling a current feed for very low temperature electr

Details Method of cooling a current feed for very low temperature electr Method of cooling a current feed for very low temperature electr

1991-11-19

1994-06-07

Picard, Leo P.

Electricity: conductors and insulators

With fluids or vacuum

With cooling or fluid feeding, circulating or distributing

174 151, 174 154, 505885, 505899, 505900, H01B 734, H01B 1200

Patent

active

053191544

ABSTRACT:
A current feed extends between a terminal at ambient temperature and an electrical equipment immersed in a cryogenic fluid and adapted to operate at variable current. The current feed is cooled by circulating an auxiliary cooling fluid at ambient temperature exchanging heat with the current feed. The auxiliary cooling fluid is introduced at an intermediate level of the current feed when the current exceeds a particular threshold and optionally all or some of the auxiliary cooling fluid is introduced at other levels nearer the electrical equipment at higher currents.

REFERENCES:
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patent: 3764726 (1973-10-01), Kohler et al.
patent: 3835239 (1974-09-01), Schmidt et al.
patent: 3900699 (1975-08-01), Penczynksi et al.
patent: 3959576 (1976-05-01), Penczynski et al.
patent: 4209658 (1980-06-01), Hilal
patent: 4369636 (1983-01-01), Purcell et al.
patent: 5183965 (1993-02-01), Lawless

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