railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Electronics and Drives Electric Drives Speed Control of Three Phase Induction Motors
A three-phase, 60 Hz, 25 HP, wye-connected induction motor operates at a shaft speed of almost 1800 r.p.m. at no load and 1650 r.p.m. at full load. The number of poles of the motor is
1
2
2
3.33
3
4
4
6.66