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E-5

E-5

THEORY OF OPERATION

FIGURE E.5 – OUTPUT BRIDGE, CHOKE, POLARITY SWITCH, AND OUTPUT TERMINALS

RANGE

SWITCH

 

AC

 

 

ELECTRODE

 

 

 

 

 

OUTPUT

CHOKE

POLARITY

TERMINAL

 

 

REACTOR

AC BRIDGE

 

SWITCH

 

 

 

 

 

 

WORK

STATOR

TERMINAL

MECHANICAL

ROTATION

ROTOR

STARTER ENGINESLIPROTOR

RINGS

Section

to Master

FLYWHEEL

ALTERNATOR

IDLER

STATOR

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SOLENOID

PRINTED

CIRCUT

BOARD

BATTERY

FIELD

CAPACITOR

115 & 230VAC

RECEPTACLES

OUTPUT

CONTROL

FIELD

BRIDGE

OUTPUT BRIDGE, CHOKE,

POLARITY SWITCH, AND OUTPUT

TERMINALS

The AC voltage developed in the stator weld winding is delivered, through the reactor and range switch, to the output bridge and polarity switch. Depending upon the setting of the polarity switch, either AC volt- age or DC voltage is delivered to the output terminals. If AC output is selected, then the current path is from the stator weld winding through the reactor, range switch and polarity switch to the output terminals. If a DC output is called for then the current path is through the Output Bridge, where the AC voltage is rectified to a DC voltage, and then to the choke, where the DC output is filtered. The filtered DC current path is through the Polarity Switch and on to the Output Terminals.

NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.

RANGER 8

Page 39
Image 39
Lincoln Electric SVM107-B service manual Output BRIDGE, Choke Polarity SWITCH, and Output Terminals