The direction of magnetic field rotation is known as _____ rotation.
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In order to increase the efficiency of the cooling, some alt…
In order to increase the efficiency of the cooling, some alternators operate in a(n) _____ atmosphere.
The rotating part of a revolving-armature-type alternator is…
The rotating part of a revolving-armature-type alternator is called the _____.
Alternators of small kilovolt-ampere rating are generally __…
Alternators of small kilovolt-ampere rating are generally _____-cooled.
If one alternator does not produce sufficient power to suppl…
If one alternator does not produce sufficient power to supply a load, another alternator can be connected to the circuit. The second alternator is connected in _____.
The direct current that is an input to the alternator’s roto…
The direct current that is an input to the alternator’s rotor is the _____ current.
Power is carried to the outside circuit of a revolving armat…
Power is carried to the outside circuit of a revolving armature type alternator via brushes riding against the _____.
_______________ alternators have a fan attached to one end o…
_______________ alternators have a fan attached to one end of the shaft.
A three-phase alternator containing six poles is turning at…
A three-phase alternator containing six poles is turning at 1000 RPM. What is the output frequency?
What is one factor that controls the output frequency of an…
What is one factor that controls the output frequency of an alternator?