

Three-Phase Systems in Power Applications - Engineering
Q1: The term squirrel-cage applies to a type of three-phase ac generator.A
True
B
False
ANS:A - True Answer:A-True:Three phase squirrel cage induction motors can also be used as generators. For this to work the motor must either be connected to a grid supply or an arrangement of capacitors to provide excitation current. For the motor to work as a generator instead of a motor the rotor must be spun faster than its stator's synchronous speed. This will cause the motor to generate power after building up its residual magnetism. |


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