The revolving armature type alternator is capable of _____ power output and is, therefore, _____ often used than the revolving field type.
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An alternator containing eight poles per phase is turning at…
An alternator containing eight poles per phase is turning at 1500 RPM. What is the output frequency?
An alternator that has a separate small alternator mounted o…
An alternator that has a separate small alternator mounted on the shaft of its rotor is equipped with a(n) _____.
The non-rotating part of a revolving-field-type alternator i…
The non-rotating part of a revolving-field-type alternator is called the _____.
The motor that does not contain a wound armature, commutator…
The motor that does not contain a wound armature, commutator, or brushes is the _____ motor.
Counter-electromotive force (CEMF) and back-EMF are names fo…
Counter-electromotive force (CEMF) and back-EMF are names for the voltage induced into the armature of a DC motor.
In a compound DC motor control circuit, the field loss relay…
In a compound DC motor control circuit, the field loss relay will disconnect the _____ if power is lost to the _____.
A device that converts electrical energy into mechanical ene…
A device that converts electrical energy into mechanical energy is called a(n) _____.
Permanent magnet motors have _____ efficiency than conventio…
Permanent magnet motors have _____ efficiency than conventional field-wound motors.
The speed of the disc servomotor can be varied by changing t…
The speed of the disc servomotor can be varied by changing the amount of voltage supplied to the armature. The voltage is generally varied using _____.