Theory Of Operation - Lincoln Electric INVERTEC 300 TP Service Manual

GENERAL DESCRIPTION
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The Invertec 300 TP is an inverter based welding
power source that offer multi-mode (TIG and Stick)
constant current welding. The machines operates on
three phases input voltage 400Vac. The welding
response of these Invertec is optimized for the stick
(SMAW) and TIG (GTAW) welding processes.

THEORY OF OPERATION

300TP – WIRING DIAGRAM
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INVERTEC
Thanks to their IP23 rating and potted boards this
power source can be used in both factory or field
operations.
Water Cooler is available as an option and has to be
installed on the bottom of the machine.