Three Phase to DC Welding Control for Resistance Welding

The three phase to DC system is phasing itself out over time as the MFDC system is providing better control at much lower system costs.

The three phase to DC control system can be configured with the welding transformer in three different configurations: Closed Delta, Wye, or Open Delta. Welding current output by three phase DC welding systems may continue on an uninterrupted basis.