Question
Download Solution PDFA 3 - phase, 4 - pole 50 Hz induction motors at a speed of 1425 RPM. The rotating field produced by the rotor rotates at a speed of _______ RPM with respect to the rotor.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
\(N_s = \frac{120f}{P}\)
\(N_s = \frac{120~\times~50}{P} = 1500 ~RPM\)
Rotating field = 1500 - 1425 = 75 RPM
The rotating field produced by the color states at a speed of 75 RPM with respect to the rotor.
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