Question
Download Solution PDFA 3-phase induction motor runs at 600 rpm when connected to a 3-phase, 60 Hz supply. Find the number of poles.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept
The speed of the 3-phase induction motor is given by:
\(N_r={120f\over P}\)
where, Nr = 3ϕ induction motor
f = Frequency
P = No. of poles
Calculation
Given, f = 60 Hz
Nr = 600 rpm
\(600={120\times 60 \over P}\)
P = 12
Last updated on May 29, 2025
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