railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrical Machines Three Phase Induction Motor Types of Induction Motor
In AC locomotives, squirrel cage induction motors are used, the method of speed control is:
1
Pole changing method of speed control
2
Frequency control method of speed control
3
Cascade control method of speed control
4
Slip control method of speed control