Electric motor design

Electric motor design should be improved and perfected over the years, see more about that here:

The total losses of high-performance electric motor are at around 60% of total losses of a common electric motor. However, despite the substantial reduction of these losses, the performance of electric high-performance engine is 3.5% higher than the rendering electric motor standard type.

Thus, it is clear the difficulty of working so that the electric motor efficiency increases and becomes even more difficult when it is taken into account an electric motor having power of 50 hp.


It is essential that the electric motor design is refined and improved over time so that the losses fall considerably over the years and so the electric motor will attend more efficiently all environmental requirements in which the engine electric is inserted and operating.

Motor circuit breaker performs the electric motor protection

The function of the motor circuit breaker is to perform the electric motor protection, as there are several reasons that can cause the electric motor burn and among them are; overload, over voltage, under voltage, lock, short circuit, phase failure, among others.

To be decreased the risk of electric motor burning you need to make use of protective devices that is associated with an electric control or starter.

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The circuit breaker motor is an equipment widely used in electric motor, it is very efficient in electric motor protection before a possible burn. The electric motor that makes use of the motor circuit breaker has the advantage of association contactors force or not. Those who use motor circuit breaker can still make use of the thermal relay and this causes the cost and maintenance of the electric motor is reduced.

Electric motor Functionality

The electric motor’s function is to convert the electrical energy into mechanical energy. By offering this feature, this engine can be present in different types of applications and many of them use very frequently in our routine.


The emergence of the electric motor took quite a long time and it proved to be very important in the era of the industrial revolution. Until nowadays these engines are still very important for the industrial sector and why they never ceased to be used. Even with so many variations, the engine remains efficient and economical, this causes various segments use it.

The difference that nowadays there are several types of electric motors, the fact that the studies and research have enabled the development of new machines to meet the varied purposes. The function remains the same, only the model that is different to be able to be present in a variety of end applications.

Electric motor with cage rotor is one of the many single-phase electric motor

In general, the electric motor of single-phase induction is a natural alternative to replace the electric motor polyphase induction in points where they can have three-phase power. These locations are: offices, homes, workshops and rural areas.

There are several types of single-phase electric motors, but among them is the electric motor with cage rotor and it stands out for the simplicity of manufacture, but mainly to be robust, reliable and have a long life without the need to pay maintenance regularly.

The phase electric motor vebm3611t divided comprises a main winding and an auxiliary that helps in starting; The auxiliary winding is in the electric motor creates a phase shift to produce a conjugate that is necessary so there is initial rotation and more acceleration.

Upon arriving in the rotation which is predetermined, the electric motor will have the auxiliary winding disconnected from the network via a key that normally act with the help of centrifugal force.

Find out which type of testing that the electric motor is submitted

The electric motor undergoes four types of assays are routine, type, and special prototype. All these tests shall follow the standards of ISO 5383, it is this standard that defines the procedures to be followed in implementing the testing of electric motors magpowr products mro.

Type tests that the electric motor undergoes take into account the electrical resistance of the electric motor from the cold, the measurement of current and absorbed power at nominal voltage, there is the test with locked rotor where the current measuring the power consumed and torque at nominal or reduced voltage, there is also the electric motor endurance test hot, the tests that are related to the power supplied in the electric motor, the Maximum torque test at nominal or reduced voltage and withstand voltage test.

Thermal equilibrium is essential for the proper functioning of the electric motor

The electric motor has only thermal equilibrium when the heat is internally generated in the electric motor is converted to electrical energy into mechanical resulting in heat dissipated. Thus, ventilation is the only way to make the temperature of the electric motor becomes lower.

The most common systems of ventilation in the electric motor are open motor, it allows the circulation of the cooling medium is free in the electric motor and thus have direct contact with the air of the parts of the electric motor are heated; totally enclosed motor, where heat transfer occurs in the electric motor on the outer surface of the electric motor, for there is no flow of cooling medium between the inside and the outside.

In the electric motor m1220c of general application, the ventilation system is fetal the use of radial fans that have straight blades and this allows the electric motor to rotate to either side and thus the flow of air occurs anyway.