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THEORY OF OPERATION
E-4 E-4
POWERARC® 5500
WELD WINDING AND REACTOR
The AC voltage developed in the stator weld winding
is delivered, through the reactor, to the machine out-
put terminals. The POWERARC® 5500 provides the
user up to 125 amps of constant current AC welding
for stick electrodes. The reactor stores energy, and
this energy is released into the welding arc when the
AC voltage passes through the zero point. In this
manner the reactor enhances and stabilizes the AC
welding arc. The reactor is designed to provide opti-
mum welding characteristics when used with the rec-
ommended electrodes.
AUXILIARY POWER
OVERCURRENT PROTECTION
The POWERARC® 5500 watt auxiliary power winding
and circuitry is protected from an overload condition
by two 20 amp circuit breakers. The circuit breakers
are located below the output receptacles. They can
be manually reset.
FIGURE E.4 – WELDING OUTPUT
ENGINE
STATOR
STATOR
ROTOR
REACTOR
BRIDGE
CAPACITOR
RHEOSTAT
230VAC
RECEPTACLES
OUTPUT
TERMINALS
ROTATION
MECHANICAL
SLIP
R
INGS
R
OTOR
MAGNETO
CIRCUIT
LOW OIL
SWITCH
RUN/STOP
SWITCH
CIRCUIT
BREAKER
115VAC
RECEPTACLES
CIRCUIT
BREAKER
NOTE: Unshaded areas of Block Logic
Diagram are the subject of discussion
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