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Two 3-$\phi$ induction motors with $ p_1 $ and $ p_2 $ poles are cascaded together. Then the possible number of speeds are

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The four possible speeds in a cascade connection correspond to the four possible pole configurations: $$p_1, \quad p_2, \quad (p_1 + p_2), \quad \text{and} \quad |p_1 - p_2|$$ This results in exactly four operational speeds.

Updated On: Jun 25, 2026

$ \text{two} $
$ \text{one} $
$ \text{four} $
$ \text{three} $

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The Correct Option is C

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Two 3-\(\phi\) induction motors with \( p_1 \) and \( p_2 \) poles are cascaded together. Then the possible number of speeds are

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The Correct Option is C

Solution and Explanation

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