UNIT 3. INDUCTION MOTORS
An induction motor (IM) is a type of asynchronous AC motor where power is ... widely used, especially polyphase induction motors, which are frequently used in industrial drives. Induction motors are now the preferred choice for industrial motors due to their rugged construction, absence of brushes (which are required in most DC motors) and the ...
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www4.hcmut.edu.vnOn the other hand, the polyphase induction motor shown in cutaway in Fig. 6.2 has a squirrel-cage rotor with a winding consisting of conducting bars embedded in slots in the rotor iron and short-circuited at each end by conducting end rings. The 306 . 6.1 Introduction to Polyphase Induction Machines 307 ...
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iwooten.comThe service factor rating is the amount of output the motor can develop without causing harm to the motor. If a 5 HP motor has a service factor of 1.15 the motor can produce an output of 5.75 HP without harming the motor. The service factor could be seen as a safety measure which would allow the motor to produce extra power if it was needed.
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ncert.nic.inthings the induction motor, the polyphase system of ac power, and the high frequency induction coil (the Tesla coil) used in radio and television sets and other electronic equipment. The SI unit of magnetic field is named in his honour. 7.2 AC VOL TAGE APPLIED TO A RESISTOR Figure 7.1 shows a resistor connected to a source ε of ac voltage.
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users.encs.concordia.calyzing induction motor behavior under unbalanced conditions. Since the true definition involves both magnitude and angles (complex alge-bra) when calculating the positive and negative sequence voltage com-ponents, a formula given by (6) avoids the use of complex algebra but gives a good approximation to the true definition. %voltage unbalance