Electric motor seminar. Presentation on class

Electric motor Electric motor seminar. Presentation on class

1. WELCOME

2. ELECTRIC MOTOR ALAN KURIAN EEE,S5 GUIDE : SIMI MISS

3. CONTENTS Introduction History Working Principle of an Electric motor Types of Electric motor Key Components Electric motor Image Working Applications Advantages Disadvantage Conclusion

4. An electric motor is a device that converts electrical energy into mechanical energy, producing motion or torque. It uses the principles of electromagnetism to generate force, which drives a machine or mechanism. INTRODUCTION

5. The first electric motor was invented by Michael Faraday in 1821, using a copper wire and a magnet. Later, in the 1830s, Thomas Davenport and Robert Anderson developed the first practical electric motors. HISTORY

6. WORKING PRINCIPLE OF AN ELECTRIC MOTO Electric motors work by converting electrical energy into mechanical motion or power ² They operate based on the principle that a current-carrying conductor in a magnetic field experiences a force ² As current passes through the armature coil, the magnetic field causes it to rotate ².

7. DC Motors : Use direct current (DC) and are commonly used in applications like fans, pumps, and conveyor belts. AC Motors : Use alternating current (AC) and are widely used in household appliances, industrial machinery, and power tools. Stepper Motors : Use DC current and are known for precise control and positioning. Brushless Motors : Use DC current and are highly efficient, reliable, and compact. TYPES OF ELECTRIC MOTORS

8. Stator: The stationary part of the motor. Rotor: The rotating part of the motor. Windings: Copper wires that carry the electrical current. Bearings: Support the rotor and reduce friction KEY COMPONENTS

9. WORKING Electric current flows into the motor through the power source and windings (coils) in the stator. The current creates a magnetic field that interacts with the rotor's magnetic field. The interaction generates a force perpendicular to the current flow. The force causes the rotor to rotate due to torque. In DC motors, the commutator switches the current flow to maintain rotation. Continuous current flow enables continuous rotation, converting electrical energy into mechanical energy.

10. Household appliances (fans, refrigerators, air conditioners) Industrial machinery (pumps, conveyor belts, compressors) Power tools (drills, saws, sanders) Transportation (electric vehicles, hybrid cars) Robotics and automation APPLICATIONS

11. ADVANTAGE DISADVANTAGE High Efficiency Low Maintenance Quiet Operation Smooth Acceleration High Upfront Cost Limited Torque Speed Limitations Heat Generation

12. CONCLUSION Convert electrical energy into mechanical energy- Highly efficient and reliable Various types (DC, AC, Stepper, Brushless) for different applications Widely used in household, industrial, and transportation sectors Impact energy consumption and sustainabilit

13. THANK YOU