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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 one of three taps on the stator weld winding
to provide a lower but “stiffer” output voltage.
THEORY OF OPERATION
E-4 E-4
RANGER 9 RANGER 9
Return to Section TOC Return to Section TOC Return to Section TOC Return to Section TOC
Return to Master TOC Return to Master TOC Return to Master TOC Return to Master TOC
WORK
TERMINAL
OUTPUT
CONTACTOR
ELECTRODE
TERMINAL
POLARITY
SWITCH
CHOKE
PART OF
RANGE
SWITCH
CAPACITORS
OUTPUT
RECTIFIER
BRIDGE
AC
AC
RANGE
SWITCH
REACTOR
STATOR
ROTOR
MECHANICAL
ROTATION
ROTOR
SLIP
RINGS
IDLER
SOLENOID
ENGINE
STARTER
BATTERY
FLYWHEEL
ALTERNATOR
PRINTER
CIRCUT
BOARD
FIELD
CAPACITOR
115 & 230VAC
RECEPTACLES
FIELD
BRIDGE
CONTACTOR CLOSURE
BY-PASS
BOARD
CONTACTOR CLOSURE
REMOTE
SWITCH
OUTPUT
CONTROL
6 PIN
AMPHENOL
14 PIN
AMPHENOL
115VAC
42VAC
FIGURE E.4 – WELD WINDING, REACTOR, AND RANGE SWITCH
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.