6
3.2 Input Power
* Power supply waveform should be sine wave and frequency fluctuations with less than
±
1% of its rating.
* The fluctuations of input voltage must be lower than
±
10% of the rated value.
3.3 Equipment Principle
NOTES: This is inverter technology. The main part as follow:
Rectifier Filter IGBT Transformer Rectifier Choke
3.4 Equipment Structure
The INARC Inverter DC MMA Welder uses portable cabinet structure: the upper part of
front panel has been equipped with welding current adjustment knob, power indicator
(green), abnormal indicator (yellow). The output terminal is fitted with quick connector
both “+” and “-”. The back panel owns power switch, motor fan, input power cable. The
inside body of the machine includes PCB main board, electronic components, radiator
etc.
