DC Arc Furnaces

Until recently, AC Arc Furnaces were used for melting as generation & distribution of AC power was convenient. But with the progress in thyristor Technology, DC Supply has become a genuine alternative to AC Supply.

Due to the fast escalating costs of raw materials and electricity, it has become imperative to adopt a process which can compensate for high costs of these inputs, and DC Arc Melting Furnace is such an equipment. We can offer DC Arc Furnaces from 3 MW/ 5 MT to 100 MW / 100 MT capacity.

Features

• Lower graphite electrode consumption by 50%
• Decreased power consumption by 5-7%
• Reduced inrush currents and flicker due to stable and regulated arc
• Reduced metal loss and better recovery of Ferro alloys
• Reduced refractory consumption due to single arc in the center
• Decreased tap to tap time
• Temperature uniformity due to better stirring
• Inexpensive pollution control system due to reduced gas & dust load
• Control Circuit is developed in such a way so that it can also be used to convert any AC Arc Furnace to DC Arc Furnace
• Unique water cooled composite bottom electrode made of steel & copper. There is no danger of explosion as no water enters the furnace shell. Bottom electrode has a life of 1 -2 years, the same as hearth life.