The described methods and systems may be applied to electric arc furnace
installations. In this context, the method and system provide an
electrode position controller coupled to the feed rate controller so as
to predictively anticipate the introduction of new source material and
lower the electrodes so as to prevent arc extinguishment while variable
reactors are controlled to maintain predetermined power set-points. The
electrode position controller may be used in place of, or in addition to,
the variable reactance control system to take corrective action to
address power and/or current changes or unbalances.