... frequency AC 50Hz into the high frequency AC100KHZ, and reduces voltage through main transformer, insulating, two times ... for welding.Characteristics:A. Moistureproof/dustproof/saltproof treatment, EMC and EMIB. High inverter frequency, rapid dynamic respond, calm ... .E. Pulse frequency and pulse ration can be adjusted continuously and widely. Combat the pulsed switch and frequency range selecting, ...