railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Electrical Machines Three Phase Induction Motor Types of Induction Motor
Which of the following statements is INCORRECT for squirrel cage rotor of induction motor?
1
It is also called a short-circuited rotor.
2
Slip ring and brush assembly are not required.
3
Airgap between stator and rotor is not uniform.
4
External resistance cannot be introduced in rotor circuit.