Question

To implement armature voltage control, it must be ensured that:

• A. It is used on shunt machine
• B. It is used on series machine
• C. It is used on separately excited machine
• D. It is used on compound machine

Hint:

Armature voltage control works effectively on separately excited machines because their independent field excitation allows for easy control of the armature voltage and motor speed.

Answer 1

The Correct Option is C

Armature voltage control is a method of controlling the speed of a motor by adjusting the voltage applied to the armature. This type of control is typically used in separately excited machines where the field excitation is provided by an independent source, allowing precise control of the armature voltage and, consequently, the speed of the motor. For other types of machines like series or compound machines, the field excitation is not independent, and armature voltage control is not feasible in the same way. Thus, armature voltage control is best implemented on a separately excited machine.