Page 787 - Basic Electrical Engineering

Figure 10.16 Single-line diagram illustrating load sharing by a synchronous generator

(a) Effect of change of excitation

Let V represent the busbar voltage and E ′ represent the induced EMF of the
b
1
incoming generator, G . Since the incoming generator is connected in
2
parallel, the two voltages V and E ′ are equal and opposite to each other as
i
B
shown in Fig. 10.17.