System for supplying current to a group of high-current resistan

Details System for supplying current to a group of high-current resistan System for supplying current to a group of high-current resistan

1975-07-01

1977-01-04

Envall, Jr., R. N.

13 23, F27D 1104

Patent

active

040014878

ABSTRACT:
System for supplying current to a group of high-current resistance furnaces including a plurality of transformers switchingly connectible sequentially to the individual furnaces singly and together in parallel, the group of furnaces being subdivided into two subgroups of furnaces, each having one of said transformers associated therewith, and including a third transformer selectively switchingly connectible in parallel to the one and the other of the two subgroups of furnaces.

REFERENCES:
patent: 2911542 (1959-11-01), Hoffstatter

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