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Construction And Working Of Electric Motor Pdf

construction and working of electric motor pdf

File Name: construction and working of electric motor .zip
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Published: 15.12.2020

Even though annealed at the mill, fully processed material may require further stress relief anneal after stamping. The stresses introduced during punching degrade the material properties around the edges of the lamination, and must be removed to obtain maximum performance. Because of its lower electrical conductivity, aluminum wire requires a 1. Insulation Modern magnet wire typically uses one to four layers of polymer film insulation, often of two different compositions, to provide a tough, continuous insulating layer. It uses a symbolic language on engineering drawings and computer-generated three-dimensional solid models that explicitly describes nominal geometry and its allowable variation.

How a DC motor works?

An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. Electric motors can be powered by direct current DC sources, such as from batteries, or rectifiers , or by alternating current AC sources, such as a power grid, inverters or electrical generators. An electric generator is mechanically identical to an electric motor, but operates with a reversed flow of power, converting mechanical energy into electrical energy. Electric motors may be classified by considerations such as power source type, internal construction, application and type of motion output.

Question 1 What is an electric motor? Question 2 On what principle does electric motor works? Question 3 Explain the construction of electric motor? Question 4 Give commercial use of electric motor? Question 5 Give uses of D.

Theoretically, the same DC machine can be used as a motor or generator. Therefore, construction of a DC motor is same as that of a DC generator. An electric motor is an electrical machine which converts electrical energy into mechanical energy. The basic working principle of a DC motor is: " whenever a current carrying conductor is placed in a magnetic field, it experiences a mechanical force". Fleming's left hand rule : If we stretch the first finger, second finger and thumb of our left hand to be perpendicular to each other, and the direction of magnetic field is represented by the first finger, direction of the current is represented by the second finger, then the thumb represents direction of the force experienced by the current carrying conductor. Above animation helps in understanding the working principle of a DC motor.

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Click Here To Download Now. The popularity of 3 phase induction motors onboard ships is because of their simple, robust construction, and high-reliability factor in the sea environment. An induction motor can be used for different applications with various speed and load requirements. Induction motors are used in almost all machinery system of the ship such as crane motor, propulsion motor, blower motor, seawater pump motor, and even small synchronous motor. An induction motor or asynchronous motor is an AC motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding.

Definition : Electric motor is the electro-mechanical machine which converts the electrical energy into mechanical energy. In other words, the devices which produce rotational force is known as the motor. The working principle of the electric motor mainly depends on the interaction of magnetic and electric field. The electric motor is mainly classified into two types. They are the AC motor and the DC motor.

Facebook Twitter. Hence instead of d. These a. A large no. Here we will learn how does single phase induction motor work. The power rating of these motors is very small. Some of them are even fractional horsepower motors, which are used in applications like small toys, small fans, hairdryers etc.


family of electric rotating machines. Other members of the family are the direct- current (dc) motor or generator, the induction motor or generator, and a number.


Single Phase Induction Motors - Construction & Working Principle

Facebook Twitter. Three Phase Induction Motor:. The three phase induction motors are the most widely used electric motors in the industry.

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Electric Motor

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3 Comments

  1. Oriana M.

    15.12.2020 at 20:53
    Reply

    An electric motor is a device which converts electrical energy into mechanical energy. Electric motors and their functions: A power supply – In general, a simple motor has a DC power source. It provides power for the armature of the motor or field coils.

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    19.12.2020 at 15:31
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