BLOT
发表于 2025-3-30 10:48:19
Three-Phase Induction Machines,nt of the engineering world than Edison, † who had pioneered the first (d-c) system. Even though the advantages of high-voltage power transmission and the need for transformers were known and appreciated, it took another breakthrough, the invention of the . (attributed to Tesla) to turn the tide in favor of a-c.
解开
发表于 2025-3-30 13:11:15
Application of Induction Motors,ad torque.) In other words, the motor and its load are settling on that speed at which this condition of . is satisfied. With the aid of a given torque-speed characteristic (like that of Fig. 13-14), the steady-state speed is determined as that speed at which the magnitude of the motor torque equals that of the load torque.
进步
发表于 2025-3-30 19:17:53
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jarring
发表于 2025-3-30 23:23:41
Two-Phase Servomotors,ssential purpose is not power conversion per se, but rather the translation of a time-varying . into a corresponding time-varying .. Some examples may help to illustrate the idea to those readers who have not yet studied feedback control systems.
调情
发表于 2025-3-31 01:46:57
Single-Phase Motors,-state operation of polyphase generators and motors, the stator and rotor currents produce rotating mmf waves of constant magnitude. Since these waves rotate at constant (synchronous) speed, they maintain a constant torque angle, and thereby a constant torque and constant power.
懒惰人民
发表于 2025-3-31 05:47:18
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anachronistic
发表于 2025-3-31 11:52:59
curriculum of many electrical engineering departments. The most obvious is the current public awareness of the "energy crisis. " More fundamental is the concern with social responsibility among college students in general and engineering students in particular. After all, electric power remains one
六个才偏离
发表于 2025-3-31 16:45:30
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过度
发表于 2025-3-31 19:20:50
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失眠症
发表于 2025-4-1 01:12:47
https://doi.org/10.1007/978-3-663-12149-7nt of the engineering world than Edison, † who had pioneered the first (d-c) system. Even though the advantages of high-voltage power transmission and the need for transformers were known and appreciated, it took another breakthrough, the invention of the . (attributed to Tesla) to turn the tide in favor of a-c.