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Series reactor for electric arc furnaces

Series reactors are installed in the feeder system of an electric arc furnace (EAF) on the primary side of the furnace transformer in order to improve the efficiency of the furnace, especially during the melting process. By increasing the source impedance of the EAF power supply, the electric arc will be stabilised, the consumption of the graphite electrodes and the tap-to-tap time (melting cycle) will be reduced.

The series reactors are commonly equipped with taps, typically in the range of 40 to 100% of the maximum inductance (usually in steps of 15% or 20%), to optimize the power factor for a certain melting process/cycle.

EAF reactor
Electric Arc Furnace

COIL INNOVATION GMBH A-4070 Eferding/AUSTRIA_Nikola-Tesla-Stra├če 1
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