Lincoln Electric SVM192-A Rotor Field Feedback And Auxiliary Power, Theory Of Operation

Models: SVM192-A

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FIGURE E.3 – ROTOR FIELD FEEDBACK AND AUXILIARY POWER

E-3

THEORY OF OPERATION

E-3

 

FIGURE E.3 – ROTOR FIELD FEEDBACK AND AUXILIARY POWER

 

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MECHANICAL

ROTATION

STARTER ENGINE

FLYWHEEL

ALTERNATOR

IDLER

SOLENOID

BATTERY

OUTPUT

CONTROL

RANGE

SWITCH

 

AC

 

 

 

OUTPUT

CHOKE

POSITIVE

REACTOR

AC BRIDGE

 

TERMINAL

 

 

 

 

 

 

NEGATIVE

 

 

 

TERMINAL

STATOR

ROTOR

SLIPROTOR

RINGS

STATOR

TOROID

FIELD

CAPACITOR

115 & 230VAC

RECEPTACLES

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PRINTED CIRCUIT

BOARD

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.

NOTE: Unshaded areas of Block Logic

Diagram are the subject of discussion

EAGLE™ 10,000

Page 35
Image 35
Lincoln Electric SVM192-A Rotor Field Feedback And Auxiliary Power, FIGURE E.3 - ROTOR FIELD FEEDBACK AND AUXILIARY POWER