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Power Generation and Distribution

Power Generation and Distribution. ETT-110 Concepts of Electronics. Power Distribution. The process of delivering electrical power to where it is needed.

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Power Generation and Distribution

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  1. Power Generation and Distribution ETT-110 Concepts of Electronics

  2. Power Distribution • The process of delivering electrical power to where it is needed. • Alternating Current (AC) is the most common voltage used in the business because AC permits efficient transmission of electrical power over long distances.

  3. Power Generation and Distribution

  4. Coal Fired Power Plant Fossil Fuels Plant Coal is burned to make steam, which is used to turn turbines

  5. Oil Fired Power Plant Fossil Fuels Plant Oil is burned to make steam, which is used to turn turbines

  6. Nuclear Power Plant Nuclear Fuel generates steam which operates turbines

  7. Hydro-Electric Power Plant Water flowing through cannels in the dam moves the turbines

  8. Off-shore Wind Farm Power Generation The AC Generator is actually located inside the head of the wind prop and physically attached to the shaft.

  9. Cogeneration Plant Generates electricity and steam or heat simultaneously

  10. Blade Fans of a Turbine Steam, water, air, or diesel engines are used to turn the TURBINE. The turbine is linked to the GENERATOR via mechanical linkage – usually direct linkage.

  11. Electromagnetic Induction If an electric conductor, like a copper wire, is moved through a magnetic field, electric current will flow (or "be induced") in the conductor. So the mechanical energy of the moving wire is converted into the electric energy of the current that flows in the wire. Michael Faraday

  12. Inside a Generator The shaft from the turbine is surrounded with coiled wire. As the shaft rotates inside a magnetic field, current is induced inside the wire. The generator converts mechanical movement into electrical energy

  13. Step Up Transformer • Outside the Power Station, voltage is increased by step-up transformers. • A transformer is a device that steps-up or steps-down the voltage of alternating current.

  14. Distribution • Distribution of high voltage alternating current occurs through the use of electrical power lines, transformers, and transmission sub-stations. • The Power Generating Station may be located thousands of miles from the point of use.

  15. Transmission Sub-Station • Distribution Sub-Stations transmit electricity to industrial, commercial, and residential users. • Step-down transformers reduce the voltage near the point of use. Voltage is sent to individual facilities where it is reduced further and distributed to main switchboards.

  16. Delivering Electricity to your Home • Line • Weatherhead & Insulator • Service Entrance Cable • Meter Box • Electrical Meter • Main Service Panel

  17. Weatherhead A Weatherhead is the point where the electrical service line enters a residence. It is a weatherproof entry point for above-ground electrical wiring or telephone lines into a home or business.

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