# Mathcad - 07-09 - the input impedance is the stator...

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Problem 7-9: Solution T stFV 600 lb ft = full voltage starting torque Autotrans 60 % = The torque of an induction motor is proportional to the voltage squared, so the starting torque will be the percentage of voltage provided by the autotransformer squared times the full voltage starting torque T stAT Autotrans 2 T stFV = T stAT 216 lb ft =

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Unformatted text preview: the input impedance is the stator impedance in series with the parallel combination of the magnetizing reactance and rotor impedance Z in Z stator Z rotor Z m ⋅ Z rotor Z m + + = Z in = and the motor current is: I load V LN Z in = I load = I load = arg I load ( 29 deg = I...
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## This note was uploaded on 03/26/2012 for the course ECET 231 taught by Professor Piller during the Spring '12 term at Purdue.

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Mathcad - 07-09 - the input impedance is the stator...

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