Month: April 2021

DC Components

An electric motor of direct current converts electrical energy into mechanical energy and has a characteristic of its own, it must be fed with continuous voltage. This continuous voltage can be derived from batteries and motors in the case of small motors or from an alternating grid after grinding in the case of larger motors.

The main components of a direct current (DC) motor are described as:

– Stator: contains a winding (field), which is fed directly by a source of continuous voltage; in the case of small motors, the stator may be a simple permanent magnet;

– Rotor: contains a winding (armature), which is fed by a DC voltage source through the switch and graphite brushes;

– Switch: mechanical device (axially segmented copper tube) in which the ends of the armature turns are connected, in order to invert the direction of the direct current flowing in the armature.

The operation of DC motors is based on the principle of classical electromagnetism where: “A conductor carrying an electric current through a magnetic flux is subjected to a force of an electromagnetic nature” (Faraday).


Torque is the measure of the effort required to rotate an axis. It is often mistaken for “force”, which is one of the components of torque. It is the result of distance and force, also known as conjugate, moment, torque, and binary. Torque is responsible for the engine’s ability to produce driving force, ie, the rotary motion. By placing a load to be moved by an electric motor, the force it can make will be directly connected to the length of the lever from the center of the shaft. Therefore, we can not determine a fixed value for the force of an engine.

It is possible to know the maximum load that it can drive 096001.00 ac motor for each lever, when we specify the force relating it to the length of the lever, and thus determines the torque of this motor. Regardless of whether the engine is small or powerful, both will do the same job. We can consider torque as work because there is an applied force that allows the motor to produce the intended work. Therefore, the torque is what indicates the capacity of the engine to generate the work itself, due to the time, ie, the evolution of the engine revolutions, it is now called power.

Single Phase Induction Motors

Sometimes we have industrial and residential facilities where the power is made with two phases or phase-neutral, needing single-phase electric motors. The basic principles of single-phase motors are similar to those of MITs already described in another situation. Since there are only two phases or one phase and one neutral, several techniques are employed to produce the rotating magnetic field required for starting single-phase induction motors.

In this way, we present some techniques and also show that once the rotor of an MIM begins to rotate driven by the rotating field, 92741090 belt  it will remain in operation with the single-phase power supply. The rotor of a MIM is usually of the cage type and there is no physical connection between the rotor and the stator, but with a uniform air gap between them. The stator grooves are generally distributed and since a single-phase winding does not cause spinning field or starting torque, this winding is divided into two parts, each of which is displaced in space and time and usually with different characteristics. Thus we have two coils in parallel, both connected to the same source of alternating current.

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