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RANGER® 10,000 & RANGER® 10,000 PLUS
THEORY OF OPERATION
E-4 E-4
WELD WINDING, REACTOR, AND
RANGE SWITCH
The stator weld winding is connected to the reactor
and range switch. The inductance in the reactor offers
an impedance to current flow. The reactor coil is
tapped at various points. As the range switch is ro-
tated, different amounts of reactor coil are brought into
the current path. As more turns of reactor are brought
into the circuit, the more impedance there is to current
flow. Simply stated, the more reactor in the circuit, the
lower the welding current.
If a constant voltage is desired for wire feeding, then
the reactor is bypassed and the range switch is con-
nected to a tap on the stator weld winding to provide
a lower but “stiffer” output voltage.
STARTER ENGINE
BATTERY
IDLER
SOLENOID
OUTPUT
CONTROL
M
ECHANICAL
R
OTATION
FIELD
CAPACITOR
ROTOR
SLIP
RINGS
115 & 230VAC
RECEPTACLES
ROTOR
STATOR
STATOR
REACTOR
RANGE
SWITCH
O
UTPUT
B
RIDGE
C
HOKE
AC
A
C
P
OLARITY
S
WITCH
E
LECTRODE
T
ERMINAL
WORK
TERMINAL
FLYWHEEL
ALTERNATOR
CV
TAP
PRINTED CIRCUIT
BOARD
FIGURE E.4 – WELD WINDING, REACTOR, AND RANGE SWITCH
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