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Engineering Circuit Analysis: International Student Version, Tenth Edition
book

Engineering Circuit Analysis: International Student Version, Tenth Edition

by J. David Irwin, R. Mark Nelms
May 2011
Intermediate to advanced
852 pages
28h 45m
English
Wiley
Content preview from Engineering Circuit Analysis: International Student Version, Tenth Edition

Chapter 11. POLYPHASE CIRCUITS

POLYPHASE CIRCUITS

THE LEARNING GOALS FOR THIS CHAPTER ARE:

  • Know the characteristics of a balanced, three-phase circuit

  • Know the basic wye and delta three-phase connections

  • Know how to calculate voltage and currents in balanced, three-phase circuits

  • Know how to calculate complex power in balanced, three-phase circuits

Wind Farms Turning a former waste site into a reliable source of renewable energy seems like a great idea—a real "win-win" for energy and the environment. Denmark has done just that with its Middelgrunden Wind Farm on a natural reef east of the Copenhagen harbor. Established in 2000 as the world's largest offshore wind farm, it consists of 20 turbines with a total rated power of 40 Megawatts. For more than 200 years, the reef had been a dumping site for harbor sludge and other contaminated waste. Today, airline travelers flying into Copenhagen from the north can view the visual impact of this renewable energy source as a recognizable tribute to Danish ingenuity.

Denmark has more than 6200 wind turbines producing an estimated 89 million kilowatt-hours of electricity each year. One of Denmark's largest industries, wind turbine manufacturing has a considerable export market worldwide. The environmental impact of wind farms is remarkable—avoiding tons of chemical pollution that would occur from conventional energy sources.

Renewable power generated by wind farms—despite ...

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Publisher Resources

ISBN: 9780470873779Purchase book