Procedure for controlling the type of arc in an electrical furna

Details Procedure for controlling the type of arc in an electrical furna Procedure for controlling the type of arc in an electrical furna

1984-03-08

1987-02-17

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Power supply system

323258, H05B 7148

Patent

active

046445595

ABSTRACT:
This invention concerns a procedure for controlling the type of arc in an electrical furnace (F), which comprises the monitoring (R) of the short circuit power of the network line (L) during a period of inactivity of the arc, whereby the value thus monitored is processed (B) to determine a primary voltage (V) to be maintained at a transformer (T2) supplying the electrodes of the furnace (F), and whereby the processing (E) combines fixed parameters (P) and at least variable parameters relating to:

REFERENCES:
patent: 3431344 (1969-03-01), Borrebach
patent: 3660583 (1972-05-01), Takanasi

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