Individual heating element power control for a furnace

Details Individual heating element power control for a furnace Individual heating element power control for a furnace

1996-11-06

1999-02-09

Hoang, Tu Ba

Industrial electric heating furnaces

Arc furnace device

Power supply system

373102, H05B 7148

Patent

active

058704230

ABSTRACT:
During a heating process in a three-phase, electric furnace, power can be controlled by dividing the heating process into intervals and then controlling the average power generated during each of these intervals, and by individually controlling the power generated by each phase. The latter is accomplished without requiring access to a neutral wire.

REFERENCES:
patent: 1506443 (1924-08-01), Otis
patent: 1511050 (1924-10-01), Collins et al.
patent: 2422734 (1947-06-01), Jung
patent: 3141918 (1964-07-01), Tanaka
patent: 3736360 (1973-05-01), Bergman et al.
patent: 4021769 (1977-05-01), Edin et al.
patent: 4323763 (1982-04-01), Goldsmith

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