Assume for a 3-phase induction motor that for a certain


1. Assume for a 3-phase induction motor that for a certain operating condition the stator I2R = rotor I2R = core loss = rotational loss and that the output is 30 KW at 86% efficiency. Determine the slip under this operating condition.

2. Find the required additional rotor resistance to limit starting current to 45 A for a 3-phase 600-V induction motor with RT = 1.66 Ω and XT = 4.1 Ω.

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Electrical Engineering: Assume for a 3-phase induction motor that for a certain
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