Generator Reviews

A Comprehensive Review On Dc Generator

The world is a privilege to have direct current (dc) generators today, as a great machine that can help convert mechanical energy into direct current or DC electricity that can be used in the offices, at homes and in different factories and locations. This piece is a complete review of the DC generator set to furnish you with all the details of what it has to offer.

PAY ATTENTION: Read: All You Should Know About AC Generator


DC Generator Review

A DC (direct current) generator can be described as an electrical machine that transforms mechanical energy into direct current electricity. This transformation of energy simply dwells on the principle of production of dynamically induced EMF (electromagnetic force).  So basically a DC engine can as well be used as DC motor without constructional changes.

How Does a DC generator work?

DC generator works with field coils that produce an electromagnetic field and an armature conductor are rotated into the field. So the electromagnetically induced the EMF that is created in the armature conductors. Fleming’s right hand rule gives the direction of induced current.

Main Parts

The main three parts of a DC generator are the follows:

  • The magnetic field system
  • The Armature
  • The commutator and brush gear

The subsidiaries are the magnetic frame, pole core, pole shoes, yoke, armature core brushes, windings, the bearing and shafts.

What is a DC generator Used For?

  • The main uses of the DC generator are to convert mechanical energy into direct current (DC) Electricity
  • It is used to power and for lighting purpose via the use of field regulator
  • The self-excited DC engine can be used for lighting battery
  • The supply of power for DC welding machines is made possible by DC engine
  • It is used to provide power to offices, hostels, and lodges
  • Dc generator over compound is used to reimburse the voltage drop in feeders.

Is Generator a DC or AC?

The truth is that both AC and DC generators use electromagnetic induction to create electricity, but the process involved for each differs. A DC engine creates a direct current that flows in a direction or one direction while an Ac generator generates an alternating current that reverses direction at the interval. So generators can be classified as DC and AC generators.

How can you Convert an AC into a DC generator?

To convert this, a process called rectification needs to be employed since it needs the straightening in the direction of the current. So a rectifier which is an electrical device will be used to convert AC (Alternating current) which helps to regularly reverse direction to DC (direct current). Wiring AC generators are very simple and it is known for them to begin creating electricity even for the first time there are used.

DC Generator Armature?

The armature in a DC generator is the part that rotates inside the fields to create electricity. The armature always rotates to convert the AC in the armature coils to DC while in the DC the armature converts the DC supply to AC to keep the armature rotating.

What is the Output of DC generator?

DC generator which is a rotating machine supplies an electrical output with current and unidirectional voltage. The current output of the DC engine travels in a single direction from positive to negative. It uses a DC generator called the commutators in it which transforms the AC to DC.


The following are the features and characteristics of a DC Generator

  • It is a mechanical device that transforms mechanical energy into direct current electrical power
  • Its electric current always flows in one direction
  • With DC generator, its current flows rotates in a fixed field
  • It has commutators that enable the current to flow in only one direction
  • It has spilt-ring commutators
  • These generators power very large electric motors
  • It produces a low voltage compared to AC generator.

Difference Between DC motor and DC Generator?

The DC motor and its generator can be differentiated via the following ways:

The most difference between these two is mostly about their conversion mechanism, while DC motor converts electrical energy into mechanical energy, DC generator on the other hand converts mechanical energy into electrical energy.  Again, DC motor EMF is less than its terminal voltage in the armature but in DC generator, the created EMF is more than its terminal voltage.  

In DC generator the EMF is based on the torque applied while in DC motor the torque is based on the EMF. So basically, these two are opposite of one another and as well serve the opposite functions.  Lastly, DC generator EMF is created by the armature winding rotating in the magnetic field of the generator while the motor EMF is generated via the armature winding rotating in the magnetic field of the motor.

Can DC Motor be Use as a Generator?

Absolutely, it can be used. Even a brushed magnet motor can be used and it all about spinning the shaft and it creates DC current and voltage. So basically DC motor can be used as a generator.

What is the Difference Between AC and DC Generator?

The main difference is that in an AC generator the electrical current regularly reverses direction but the current flows is fixed while in a DC generator the electrical current moves in one direction.

What is the Principle of AC and DC generator?

These two works on the principle of Faraday’s law of electromagnetic induction, which states that EMF (electromotive force is created in a current carrying conductor that cuts a uniform or same magnetic field).

Are Portable Generators AC or DC

Portable generators produce alternating current (AC). So portable generators are said to be AC


DC generators are here to stay and there are useful because it provides electricity for the use at different locations. This piece was put together to help you know more about DC generators and this piece has done a good job of x-raying all you needed to know. You will be better equipped now with the right information.

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