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Figure 10.10 Terminal voltage of a synchronous generator under loading condition at different
power factors
Figure 10.11 (a) Phasor diagram at lagging power factor load; (b) phasor diagram at leading power
factor load
In the same way the phasor diagram for leading Power factor load current
I has been drawn as in Fig. 10.11 (b).
a
It is interesting to note that for leading power factor load, the terminal
voltage V is more than the induced EMF at no load.
10.12 VOLTAGE REGULATION OF A SYNCHRONOUS GENERATOR
Synchronous generators supply power to various loads at a particular
terminal voltage. The generator has to maintain its terminal voltage within a
specified limit. If there is very large change in the terminal voltage when load
