In simple words, electric motor can
be defined as equipment, which transforms electrical energy into mechanical
energy. It works on electricity. These motors, which transform electrical
energy into mechanical energy, come in different forms to serve different
purposes. For example fans, mixer, blenders, washers, car, motorcycle etc. If
you are looking for electric motors for sale then this article will help you in knowing the basics about motors, it
will help you know about how they work, the purposes they serve and their many
types. This basic knowledge will then help you make the correct choice when you
decide to buy one for your needs.
An electric motor relies on
electromagnet, which is a magnet, which is driven by electricity. Electromagnet
is composed of coil of wires, usually copper one or any other corrosion
resistant metal or alloy to help keep the motor up to its maximum efficiency.
Motor which has a coil or an electromagnet composed of a precious metal or any
other expensive metal or alloy is expensive but it is usually worth that extra
price because they are more efficient, have higher quality and have long
working life. The coil of wire helps in generating a measurable amount of
magnetic field or magnetic field in the amount we require. The intensity of
magnetic field depends upon the number of turns that a coil wire has or simply
the amount of wire utilized in the coil. Through that magnetic field can be
easily controlled. Near this electromagnet, one more magnet is placed which has
opposite attraction. When the electromagnet is turned on, then magnetism
develops because of the conflicting nature of the poles and the coil rotates. With
the help of rotation of the coil and with the help of armature, the electric
motor works.
When it comes to types, there are
simple two basic types of motors, one kind of motor works on the direct current
(DC power source) while the other utilizes Alternating current( AC power source).
Ac power is utilized more these days in modern machinery because it helps in
the spinning of electromagnet without any interruptions, which is a good thing
for steady performance.
In the old days, direct current was
used mainly, but when the Ac current developed, it almost replaced DC driven
motors. Motors that work on DC, they extract their power from the additional
supplied batteries. Dc motor also has a commutator which is absent in AC
motors. The main purpose of commutator in the DC motor is to provide continuous
spinning of the axle. Commutator reverses the current and as a result, torque
is produced. The starters you see in the car are a fine example of DC motors. This
article must have given you basic information about the electric motors so now
it will be easier for you to find the motor you require while looking for electric motors for sale.
Visit for more detail: http://rototech.com.au/elec_main.php
