pendidikan kejuruteraan elektrik_bab 1

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pendidikan kejuruteraan elektrik_bab 1

  1. 1. UNIT 1: INTRODUCTION 1.1 Importance Of And Need For Electricity In Daily Life 1.2 Other Forms Of Energy Converted From Electricity 1.3 Energy Resources 1.4 Generation, Transmission and Distribution of Electricity 1.4.1 Electricity Generation 1.4.2 Types of Power Station
  2. 2. 1.1 IMPORTANCE OF AND NEED FOR ELECTRICITY Importance of electricity To functions Industry appliances Domestic appliances
  3. 3. EXAMPLES OF ELECTRICITY APPLIANCES
  4. 4. 1.2 OTHER FORMS OF ENERGY CONVERTED FROM ELECTRICITY Heat Energy Light Energy Sound Energy Mechanical Energy Electricity
  5. 5. 1.3 ELECTRICAL ENERGY RESOURCES Friction Chemical Reaction Light Heat Magnet Pressure
  6. 6. HOW ELECTRICITY FLOWS TO ITS USER?
  7. 7. 1.4 GENERATION, TRANSMISSION & DISTRIBUTION OF ELECTRICITY Electricity Generation Direct Current Current flow in one direction Alternating Current Constantly changing its flow direction
  8. 8. 1.4 GENERATION, TRANSMISSION & DISTRIBUTION OF ELECTRICITY  Examples of DC and AC generation
  9. 9. 1.4 GENERATION, TRANSMISSION & DISTRIBUTION OF ELECTRICITY Hydro power station Prime mover: water Thermal Power Station Prime Mover: Steam Gas Power Station Prime Mover: Air (Gas)
  10. 10. HYDRO-ELECTRIC POWER STATION Operation: • water flow from a dam •Turn the turbine •Rotate the generator to generate voltage
  11. 11. THERMAL POWER STATION
  12. 12. GAS POWER STATION Operation: •Compressor - compresses a gas to produce high-pressure air (cooling part) •Combustion – burn the gas used (fuel) •Rotate the generator to generate voltage
  13. 13. HEAT ENERGY Current Heating Element Heat Energy
  14. 14. LIGHT ENERGY current Light/lamp Light Energy
  15. 15. MECHANICAL ENERGY current Motor Coil Rotor Spin Mechanical Energy
  16. 16. SOUND ENERGY current Audio Circuit Sound Energy
  17. 17. FRICTION Friction 2 different material Electrostatic force /Silk cloth
  18. 18. CHEMICAL REACTION Zinc + Copper + electrolyte Electric Charge / Electrochemical Reaction
  19. 19. LIGHT Light Surface Photoelectric Effect
  20. 20. HEAT Heat Two different material Seebeck Effect
  21. 21. MAGNETIC FIELD Cutting Magnetic field Induced current EMF
  22. 22. PRESSURE Pressure Crystal Piezoelectric Effect

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