Kemppi MASTERTIG AC/DC 2000 - 3.3. MMA WELDING

Operation principle
T001
R001
T003
V4
V6
TIG
V5
U
G5
When the chosen current type is AC, then the IGBTs V5 and V6 are conductive one at a time,
with 50…200 Hz frequency.
Block diagram
Cooling unit
control card
A005
Primary inverter
control card
A002
Sec. Inverter
Control card
A003
Spark card
A004
EMI-filt.
Primary
rectifying
Filtering
Primary
inverter
Main
transformer
Sec.
rectifying
Sec.
inverter
Spark transformer
P001
M
P
14