Rectifiers and Converters
Which of the following AC. motors is usually used in large motor-generator sets?

Synchronous motor
Any of the listed here
Squirrel cage induction motor
Slip ring induction motor

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Rectifiers and Converters
On which of the following factors the number of phases for which a rectifier should be designed depends?

All of the listed here
The power factor of the system should be high
The voltage regulation of the rectifier should be low
In the output circuit there should be no harmonics

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