Does DC voltage remain constant?

For example, the voltage across a DC voltage source is constant as is the current through a DC current source. The DC solution of an electric circuit is the solution where all voltages and currents are constant. Although DC stands for “direct current”, DC often refers to “constant polarity”.

How do we control the voltage on a DC generator?

The voltage of a separately-excited DC generator can be controlled by controlling generator speed, by using a variable field supply, or by a combination of both. A self-excited dc generator can be controlled by generator speed or by a rheostat or electronic circuit that reduces the field current.

How the terminal voltage is maintained constant in a DC shunt generator?

The terminal voltage can always be maintained constant by adjusting the load terminal. External characteristics of shunt dc generator When the load resistance of a shunt-wound DC generator is decreased, then load current of the generator increased as shown in above figure.

Can we keep current constant?

Energy can neither be created nor be destroyed. If you want to boost the electric current by keeping everything unchanged (Voltage and Circuit), it never possible.

Which will provide constant DC voltage?

The constant DC voltage is obtained by the processes rectification, filtering and regulation of the supply. Therefore, the correct order of operation is rectifier, filter, regulator and the option (C) is the correct answer.

What is the voltage regulation of a DC generator proportional to?

The voltage regulation of a DC generator is proportional. The resistance of the armature is what determines the voltage regulation in a DC generator. As load is added from no load to full load, the amount of output voltage drops.

What factor is kept constant when a generator is in operation?

The output of a generator is normally controlled by controlling the current in the field of the generator, the speed being constant for a set frequency.

What are reasons that the terminal voltage of a DC shunt generator drops on load?

Direct-Current Machines For all d.c. shunt generators, the terminal voltage decreases as the machine is loaded for the following reasons: 1. The e.m.f. generated is reduced due to the effect of armature reaction which causes magnetic saturation at one of the pole tips and hence a reduction in the flux per pole.