Theory of operation, Rotor field feedback and auxiliary power – Lincoln Electric EAGLE SVM192-A User Manual
Page 35
THEORY OF OPERATION
E-3
E-3
EAGLE™ 10,000
ROTOR FIELD FEEDBACK AND
AUXILIARY POWER
The AC voltage developed in the field winding is fed to
the full wave field bridge. The DC output of the bridge
is filtered by the field capacitor and controlled by the
printed circuit board according to the output control set-
ting.
This filtered and controlled voltage is fed to the
rotor winding via the brush and slip ring configuration.
As the feedback voltage is increased or decreased, the
outputs
of
the
weld
and
auxiliary
windings
are
increased or decreased.
When full field voltage is applied to the rotor and the
engine is running at high speed (3700 RPM), a 230 AC
voltage is developed in the stator auxiliary winding.
This winding is tapped to provide 115 VAC. The two
voltages, (115 VAC and 230 VAC), are connected to
the appropriate receptacles and offer 9000 watts (total)
of AC power.
FIGURE E.3 – ROTOR FIELD FEEDBACK AND AUXILIARY POWER
STARTER
ENGINE
BATTERY
IDLER
SOLENOID
OUTPUT
CONTROL
MECHANICAL
ROTAT ION
FIELD
CAPACITOR
ROTOR
SLIP
RINGS
115 & 230VAC
RECEPTACLES
ROTOR
STAT OR
STAT OR
REACTOR
RANGE
SWITCH
OUTPUT
BRIDGE
CHOKE
AC
AC
TERMINAL
TERMINAL
FLYWHEEL
ALTERNATOR
PRINTED CIRCUIT
BOARD
TOROID
TOROID
POSITIVE
POSITIVE
NEGATIVE
NOTE: Unshaded areas of Block Logic
Diagram are the subject of discussion