Electrical Power Systems Technology

Mechanical Systems 393

line voltage is applied to the rotors of both the generator and motor. The

stationary coils, or stator windings, are connected together as indicated.

When power is initially applied to the system, the motor will position it-

self according to the location of the generator shaft. No physical change

will take place after the motor unit aligns itself with the generator posi-

tion. Both units will remain in a stationary condition until some further ac-

tion takes place. Turning the generator shaft a certain number of degrees

Figure 14-31. Schematic diagram and symbols for a basic synchro unit

Figure 14-32. Circuit diagram of a basic synchro system