Dc motor prasad 55


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All about the motors in very simple words so easy to understand,,,,

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Dc motor prasad 55

  2. 2. Take a ride of motor! <ul><li>This presentation consists of the following concepts related to the electrical machine which is used everywhere called ‘DC MOTOR’. </li></ul><ul><li>What are electrical machines? </li></ul><ul><li>What’s a Dc Motor? </li></ul><ul><li>It’s basic parts. </li></ul><ul><li>Animated working. </li></ul><ul><li>Different Motors. </li></ul><ul><li>Compare generator & motor diagrammatically. </li></ul><ul><li>Summary. </li></ul>
  3. 3. Electrical Machines <ul><li>An Electrical machine is a device that converts mechanical energy to electrical energy or vice versa, and changes AC voltage from one level to another level. </li></ul><ul><li>Electrical machines are divided into three parts: </li></ul><ul><li>1.Generator </li></ul><ul><li>2. Motor </li></ul><ul><li>3. Transformer </li></ul>
  4. 4. DC MOTOR <ul><li>In any electric motor, operation is based on simple electromagnetism. </li></ul><ul><li>A current-carrying conductor generates a magnetic field; when this is then placed in an external magnetic field, it will experience a force proportional to the current in the conductor, and to the strength of the external magnetic field. </li></ul>
  5. 5. Dc motor basic parts <ul><li>Every DC motor has six basic parts-axle, rotor , stator, commutator, field magnet(s), and brushes. </li></ul><ul><li>In most common DC motors , the external magnetic field is produced by high-strength permanent magnets , </li></ul><ul><li>Stator-stationary part of the motor </li></ul><ul><li>rotor -consists of windings </li></ul>
  6. 6. Detailing of Parts <ul><li>The two important parts of a Dc motor is the Rotor & Stator. </li></ul><ul><li>In simple words Rotor is the rotating part of motor & Stator is the stationary part of the motor. </li></ul><ul><li>The Rotor actually as two sides in middle there is a AXLE, means that it is like a wheel which helps the Rotor to rotate. </li></ul><ul><li>The Rotor is covered with the windings. </li></ul><ul><li>These parts are actually placed in another part that’s called the Metal FRAME. </li></ul><ul><li>The most basic part needed for working of any kind of motor is the FIELD MAGNETS. </li></ul>
  7. 7. Basic words related to a DC Motor <ul><li>TORQUE- Any kind of Force on the system(conductor). </li></ul><ul><li>STARTER -Device that creates a Force internally that tends due an internal combination to cause Rotation of the engine(motor.) </li></ul><ul><li>LOAD- External force acting on the mechanism. </li></ul>
  8. 8. Working of a Simple DC MOTOR Next slide
  9. 9. Types of Motors <ul><ul><li>There are various types of motors having the same basic principle: </li></ul></ul><ul><ul><li>1. Synchronous Motors </li></ul></ul><ul><ul><li>2. Induction Motors </li></ul></ul><ul><ul><li>3. Stepper-Motors </li></ul></ul><ul><ul><li>4. Universal motors </li></ul></ul>
  10. 10. Compare generator & motor MOTOR GENERATOR
  11. 11. Summary <ul><li>The following are the important points that should be noted while considering a DC MOTOR: </li></ul><ul><li>Dc motor is most used electrical machine. </li></ul><ul><li>Converts electrical to mechanical energy. </li></ul><ul><li>The mechanical movement produced due to torque. </li></ul><ul><li>A Dc motor should never be started without load. </li></ul><ul><li>Starters are essential for starting all motors. </li></ul><ul><li>Dc motor is simply converse of a Dc Generator. </li></ul>