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Ch 7

Authored by Dario Garcia

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Ch 7
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34 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Synchronous motors are similar to induction motors in that both have stator coils that produce a rotating magnetic field.

T

F

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the synchronous motor is overloaded to the point where the rotor is pulled out of step with the rotating magnetic field, no torque is developed and the OSR takes the motor off-line.

T

F

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A synchronous motor has a three-part rotor.

T

F

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The amortisseur winding of a synchronous motor is generally smaller than the squirrel-cage winding of a comparable induction motor because the winding is only used for starting and is not expected to dissipate heat from continuous operation.

T

F

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

At approximately 95% of synchronous speed, DC excitation is applied to the wound rotor section.

T

F

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An M-G set can be mounted at a remote location from the synchronous motor and cannot be used with more than one synchronous motor at a time.

T

F

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The exciter rotor output to the single-phase bridge controls the level of excitation in the main rotor DC field winding.

T

F

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