How Are Dc Motors Constructed?

How are motors constructed?

The electric motor construction can be done using the rotor, bearings, stator, air gap, windings, commutator, etc. The rotor in an electric motor is the moving part, and the main function of this is to rotate the shaft for generating the mechanical power.

What is principle construction and working of DC motor?

The DC motor is the motor which converts the direct current into the mechanical work. It works on the principle of Lorentz Law, which states that “the current carrying conductor placed in a magnetic and electric field experience a force”. And that force is the Lorentz force.

What are the parts construction of a DC machine?

The construction of the DC machine can be done using some of the essential parts like Yoke, Pole core & pole shoes, Pole coil & field coil, Armature core, Armature winding otherwise conductor, commutator, brushes & bearings.

What is the working of dc motor?

A direct current (DC) motor is a type of electric machine that converts electrical energy into mechanical energy. DC motors take electrical power through direct current, and convert this energy into mechanical rotation.

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What are the advantages and disadvantages of AC and DC motors?

AC motors are generally considered to be more powerful than DC motors because they can generate higher torque by using a more powerful current. However, DC motors are typically more efficient and make better use of their input energy.

What are the advantages of DC motors?

Advantages of DC Motors

  • Good speed control. DC motors offer highly controllable speed.
  • High torque.
  • Seamless operation.
  • Free from harmonics.

What are the parts of DC motor?

What are DC Motor Parts and how they work?

  • Stator. A stator is one of the DC motor parts that is, as the name suggests, a static unit containing the field windings.
  • Rotor.
  • Yoke.
  • Poles.
  • Field Windings.
  • Armature Windings.
  • DC Motor Commutator.
  • Brushes.

What is the basic principle of motor?

The electric motor works on the principle of magnetic effects of current. Its principle is when a rectangular coil is placed in a magnetic field and current is passed through it, the coil rotates as a result of the forces acting on the coil.

What is the speed of DC motor?

DC controls adjust speed by varying the voltage sent to the motor (this differs from AC motor controls which adjust the line frequency to the motor). Typical no load or synchronous speeds for an AC fractional horsepower motor are 1800 or 3600 rpm, and 1000-5000 rpm for DC fractional hp motors.

What are the 3 types of DC motors?

Types of DC Motors. There are 3 main types of DC motor that are available:- Series, Shunt and Compound. These terms relate to the type of connection of the field windings with respect to the armature circuit.

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What is role of commutator in DC motor?

The commutator on the DC generator converts the AC into pulsating DC. On DC and most AC motors the purpose of the commutator is to insure that the current flowing through the rotor windings is always in the same direction, and the proper coil on the rotor is energized in respect to the field coils.

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