engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Electrician and Wireman Electrical Machines Polyphase Induction Motors
A 3-phase induction motor has 2 poles and is connected to 400 V, 50 Hz supply. Determine the actual rotor speed when the slip is 3%.
1
3000 r.p.m.
2
2910 r.p.m.
3
1500 r.p.m.
4
1455 r.p.m.