What happens to the output voltage on a shunt generator when the load increases?

In a shunt generator, the output voltage typically decreases when the load increases. This behavior is due to the internal resistance of the generator and the characteristics of the shunt field winding.

As the load on the generator increases, more current is drawn from the generator to supply the load. This results in a larger voltage drop across the internal resistance of the generator, which leads to a lower voltage available at the output terminals. Additionally, the increased current flowing through the shunt field winding can lead to a reduction in the magnetic field strength. A weaker magnetic field means less induced voltage, further contributing to the decrease in output voltage.

Thus, as load increases, the output voltage experiences a decline, demonstrating the typical performance characteristics of a shunt generator under varying load conditions.