Chapter: Electrical Engineering and Instrumentation : Induction Machines and Synchronous Machines
V Curves
The curve which is drawn between armature current and field is called V-curves which are shown in Figure 3.20.
V Curves
The curve
which is drawn between armature current and field is called V-curves which are
shown in Figure 3.20.
In
general, over excitation will cause the synchronous motor to operate at a
leading power factor, while under excitation will cause the motor to operate at
a lagging power factor. The synchronous motor thus possesses a variable-power
factor characteristic.
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Electrical Engineering and Instrumentation : Induction Machines and Synchronous Machines : V Curves |
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Electrical Engineering and Instrumentation : Induction Machines and Synchronous Machines