What affects the output voltage of an AC generator?

Two key factors affect the magnitude of voltage induced. The speed at which the conductor moves through the fixed magnetic field and the strength of the magnetic field determine the output voltage. This speed is a function of the rotational speed (RPM) of the generator/engine.

What are the three main factor in which the value of the voltage generated by AC generator depends on?

The amount of voltage induced in the windings Page 17 3-16 depends mainly on three things: (1) the number of conductors in series per winding, (2) the speed (alternator rpm) at which the magnetic field cuts the winding, and (3) the strength of the magnetic field.

What are the factors that affect the voltage build up a DC shunt generator?

Conditions to build up the voltage in shunt generator:

• The shunt winding should have a residual magnetic field.
• The direction of the shunt winding and armature winding should be in such a way that flux generated by them should aid together.
• The shunt winding should have critical winding resistance.

How does AC generator increase voltage?

1) using a powerful electromagnet instead of a permanent magnet to make the magnetic field stronger.

1. 2) increasing the turns in coil.
2. 3) winding the coil round a soft iron core, would increase the strength of magnetic field..
3. 4) faster rotation of coil.
4. 5) increasing the area of coil.

What does the voltage regulator in an AC generator?

Purpose. The purpose of a voltage regulator is to maintain the output voltage of a generator at a desired value. As load on an AC generator changes, the voltage will also tend to change. Therefore, the output voltage of an AC generator varies with both changes in load (i.e., current) and changes in power factor.

What is meant by form factor of AC generator?

In electronics or electrical engineering the form factor of an alternating current waveform (signal) is the ratio of the RMS (root mean square) value to the average value (mathematical mean of absolute values of all points on the waveform).

What limits the voltage to which a generator can build up?

The terminal voltage of the generator limits to the steady state value, when the magnetic saturation of field pole cores being reached. The curve plotted between the E0 and If is called as the magnetisation curve.

What causes high voltage in a generator?

If the generator engine speed is unstable that means too high, then the voltage increase significantly. If working load is exceed than the generator efficiency, and then the voltage will be unstable. Sometimes voltage regulator components become hampered. On that occasions, voltage increases.