Revolving Vectors with Application to Alternating Current Phenomena (Electrical Engineering)
- Indbinding:
- Paperback
- Sideantal:
- 100
- Udgivet:
- 30. september 2008
- Størrelse:
- 152x229x5 mm.
- Vægt:
- 145 g.
- 2-3 uger.
- 22. januar 2025
På lager
Forlænget returret til d. 31. januar 2025
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- Ingen binding
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- 1 valgfrit digitalt ugeblad
- 20 timers lytning og læsning
- Adgang til 70.000+ titler
- Ingen binding
Abonnementet koster 75 kr./md.
Ingen binding og kan opsiges når som helst.
Beskrivelse af Revolving Vectors with Application to Alternating Current Phenomena (Electrical Engineering)
The use of complex quantities in the theory of alternating currents was pioneered by Charles Proteus Steinmetz in his work, "Alternating Current Phenomena." Early writers used complex quantities to represent vector quantities algebraically. Steinmetz extended the application so as to include harmonic quantities. As many writers in electrical engineering are prone to confuse vector and harmonic quantities, the author thinks it is necessary to distinguish these two uses of complex quantities, and for that purpose he starts with the vector use and later takes up the harmonic use. In many instances, correct mathematical results may be obtained by treating harmonic quantities as vector quantities, but in other cases (such as multiplication of EMF and current to obtain power) incorrect results are obtained unless arbitrary rules of multiplication and division are introduced - so called "fudge factors." This book clarifies this problem and the interprets the classical theory in a thoughtful and practical manner.
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