ARIA
发表于 2025-3-25 03:38:21
Induction motors,otors running from the 240V supply are among the commonest in domestic use. All induction motors are cheap, reliable, rugged, lightweight and reasonably efficient; in fact large (> 1 MW) induction motors have efficiencies of up to 98%. Their biggest drawback hitherto has been their small range of op
我不怕牺牲
发表于 2025-3-25 08:10:15
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教唆
发表于 2025-3-25 13:03:05
Power electronics,evices such as SCRs became common in high-voltage traction motors as long as thirty years ago, it is only in the last ten years that the marriage of microprocessors and power devices has brought about a revolution in the control of electrical power. This is especially noteworthy in electric motor dr
表状态
发表于 2025-3-25 19:43:49
The Editor(s) (if applicable) and The Author(s) 2003
entail
发表于 2025-3-25 20:18:01
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树木中
发表于 2025-3-26 02:53:24
Sinusoidally-excited circuits,nts. However, nearly all electricity is generated and consumed in the form of AC. In order to continue to use the methods devised originally for DC circuits, Heaviside. developed the use of complex numbers for currents, voltages and impedances. This has proved to be the most powerful tool ever put into the hands of electrical engineers.
分开如此和谐
发表于 2025-3-26 05:10:00
Textbook 2003Latest editionoffers exceptional breadth of coverage without sacrificing depth.It uses a wealth of practical examples to illustrate the theory, and makes no excessive demands on the reader‘s mathematical skills.Ideal as a teaching tool or for self-study.
Aesthete
发表于 2025-3-26 10:19:50
Lionel WarnesUpdated edition of an established and successful textbook. Comprehensive and readable, containing numerous worked examples
prosperity
发表于 2025-3-26 13:54:26
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Comedienne
发表于 2025-3-26 19:53:52
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