Give an overview of alternator control.
What will be an ideal response?
Alternators are often used to control the speed of several induction motors that require the same change in speed, such as motors on a conveyer line. The alternator is turned by a direct current motor or an AC motor coupled to an eddy current clutch. The output frequency of the alternator is determined by the speed of the rotor. The output voltage of the alternator is determined by the amount of DC excitation current applied to the rotor. Since the output voltage must change with a change of frequency, a variable voltage DC supply is used to provide excitation current. Most controls of this type employ some method of sensing alternator speed and make automatic adjustments to the excitation current.
You might also like to view...
When pulsating currents are connected to a three-phase four-wire system, triplen harmonic frequencies disrupt the normal phasor relationship of the phase currents and can cause the phase currents to add in the neutral conductor.
Answer the following statement true (T) or false (F)
A solenoid converts electrical energy into mechanical energy
Indicate whether the statement is true or false
Find the root of the following number: 
. (Round answer to the nearest thousandth or three places to the right of the decimal point).
What will be an ideal response?
What are the three transistor amplifier configurations?
What will be an ideal response?