... response and easy arc starting, arc stability performance, CharacteristicsUsing IGBT module, inverter frequency of 18 KHz, dynamic fast response and easy ... uniform, minimum spatter, even small current welding, is not so easy in arc welding and bonding undesirable phenomenon.Grid voltage compensation ... 250×450650×320×670650×320×670650×320×670650×320×670 IGBT Inverter DC arc welding machine(ZX7 series)