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# Solution: What is the frequency of the rotor current at full-load?

#### Problem Statement: Electrical Engineering Professional Subjects

Electrical Machines: AC Motors Problem Solving

A 50 HP three-phase motor, rated 220 V, 75% power factor has 6 poles. The slip at full load is 3%. What is the frequency of the rotor current at full-load?

A.ย  1.8 Hz

B.ย  60 Hz

C.ย  5.4 Hz

D.ย  58.2 Hz

The frequency of the rotor current at full-load is equal to 1.8 Hz.

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