Welding Transformer Circuit Diagram. Mosfet inverter welding machine circuit diagram author. For a 800 watt transformer 50 volts at 16 amps and 1000 watt 50volts at 20 amps.
The primary current required by this size ac transformer type welder is about 50 amps at 230 volts. In this an arc welder is little different than a neon bulb. Foot control switch is operated the equipment circuits detect a short circuit on the output and allow only a very low current typically 5 8 amps to flow.
The rms short circuit secondary current specification indicates the maximum current that can be obtained from the transformer.
The cost of doing so is just slightly more. Welding transformers combined with reactors. The primary current required by this size ac transformer type welder is about 50 amps at 230 volts. In an arc welding machine electric discharge is used for welding.