We designed and developed three phase electric slag furnace based on confirm single phase and series phase ones. Three phase furnace is good to electric network balance and electric consumes is lower. So it is suitable for large tonnage electric slag furnace.Moulds with diameter bigger than 800mm can be used. Equipment Service Condition:Height above sea level:<1000 m Circumstance temperature:5-35°C Relative Humidity:85%Voltage hunting:<±5% Cooling water input temperature:5-30°C Cooling water input pressure:>0.25MPa No explosive dust, no steam and corrosive gas,good ventilation and no violent vibration.Technical parameter:Capacity /kg PhaseSpindle Diameter/mmTransformerCapacityRemarks200Single200240KVASingle Cantilever500Single300400KVASingle Cantilever1200Single380630Double Cantilever2000Single500800Double Cantilever3000Single6001000Double Cantilever5000Single7001400Double Cantilever8000Single8501800Double Cantilever10000Single9502300Double Cantilever15000Single10002600Double Cantilever20000Single12003200Double Cantilever10000Three9502300Double Cantilever15000Three10002400Double Cantilever20000Three12002700Double Cantilever40000Three15504200Double Cantilever80000Three20008100Double Cantilever120000Three23009600Double Cantilever