Procedure for controlling the type of arc in an electrical furna

Industrial electric heating furnaces – Arc furnace device – Power supply system

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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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