AC Induction Motor

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AC Induction Motors ► Simplest ► Consists ► AC and most rugged electric motor of ___________ and ____________ in the primary member (stator) produces a ________ field magnetic field induces ______ in the secondary member (rotor) ⇒ another ________ fields produce the force (torque) to create rotation. ► The ► Combined AC Induction Motors ► ► Rotors typically consist of a laminated, cylindrical iron core with slots for receiving the conductors. Common type of rotor has cast-aluminum conduct
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   AC Induction Motors ► Simplest and most rugged electric motor ► Consists of ___________ and ____________  ►  AC in the primary member (stator) produces a ________ field ► The magnetic field induces ______ in thesecondary member (rotor) ⇒ another ________  ► Combined fields produce the force (torque) tocreate rotation.   AC Induction Motors ► Rotors typically consist of a laminated, cylindrical iron corewith slots for receiving the conductors. ► Common type of rotor has cast-aluminum conductors andshort-circuiting end rings.   AC Induction Motors ► The squirrel cage rotates when the movingmagnetic field induces a current in the shortedconductors.   AC Motor Speed ► The magnetic field rotates at the __________ speed of the motor ► Determined by the number of _____ inthe stator and the frequency of the ACpower n  s  = synchronous speed (in RPM), f   = frequency (in Hz), and  p  = the number of poles
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