0 votes 0 votes A $4$ pole induction machine is working as an induction generator. The generator supply frequency is $60$Hz. The rotor current frequency is $5$Hz. The mechanical speed of the rotor in $RPM$ is $1350$ $1650$ $1950$ $2250$ new gate2017-ee-1 + – Arjun asked Feb 26, 2017 • edited May 29, 2019 by Lakshman Bhaiya Arjun 15.9k points answer comment Share See all 0 reply Please log in or register to add a comment.