1. INDUCTION MOTORS
Name : Mrs.A.Sangari & Mrs.P.T.Subasini
Designation : Sr. Lecturer & Lecturer
Department : Electrical and Electronics Engineering
Subject code : 131307
Year : II/ECE A & B
Unit : IV
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22. induces a large voltage – hence
large currents flow within the
rotor,
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23. producing a strong torque.
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24. Induction Motors: Slip
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25. The difference between the
synchronous speed and rotor
speed can be
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26. expressed as a percentage of
synchronous speed, known as
the slip.
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27. N Ns - s =
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28. Ns
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29. s = slip, Ns = synchronous
speed (rpm), N = rotor speed
(rpm)
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30. • At no-load, the slip is nearly
zero (<0.1%).
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