o Calculate the speed of a induction motor, apply this formula:

                                        Srpm = 120 x F
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7.4.2
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7.4.2

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  • 7.4.2

    1. 1. o Calculate the speed of a induction motor, apply this formula: Srpm = 120 x F P Srpm = synchronous revolutions per minute. 120 = constant F = supply frequency (in cycles/sec) P = number of motor winding poles Example: What is the synchronous of a motor having 4 poles connected to a 60 hz power supply? Srpm = 120 x F P Srpm = 120 x 60 4 Srpm = 7200 4 Srpm = 1800 rpm

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