Lincoln Electric POWER-ARC 4000 SVM103-A Service Manual page 37

-THEORY OF OPERATION SECTION-
Theory of Operation .............................................................................................................Section E
Power Supply Operation ..............................................................................................E-1 - E-3
Engine, Excitation, Rotor and Stator ..............................................................................E-1
Rotor Field Feedback and Auxiliary Power.....................................................................E-2
Weld Winding and Reactor .............................................................................................E-3
Auxiliary Power Overcurrent Protection ................................................................................E-4
ENGINE
MECHANICAL
ROTATION
FIGURE E.1 – POWER-ARC 4000 BLOCK LOGIC DIAGRAM
TABLE OF CONTENTS
ROTOR
SLIP
RINGS
CAPACITOR
BRIDGE
RHEOSTAT
REACTOR
STATOR
ROTOR
STATOR
115 AND 230VAC
RECEPTACLES
Section E
OUTPUT
TERMINALS
POWER-ARC 4000