Question: A 4-pole, 3-phase slip ring induction motor is used as a frequency changer. Its stator is excited from 3-phase, 50 Hz supply. A load requiring 3-phase, 20 Hz supply is connected to the star-connected rotor through three slip-rings of SRIM. At what two speeds the prime mover should drive the rotor of this SRIM?
Options
A : 900 rpm
B : 600 rpm
C : 1500 rpm
D : 0
Electrical Machines Rotor Frequency more questions
The bond angles in sp3d2 hybridisation is ____________
What is the number of wildlife sanctuaries India consisting of?
Find the turns in an solenoid of inductance 23.4mH ,....
Methane is at the rate 50 moles is supplied to....
In Mendel’s experiments on garden pea plants, he performed a....
When 15 A current flows into the positive terminal of....
At what temperature was the flask maintained in Miller’s experiment?
In the given tank, there are two feeds and one....
What are the ISO standards for hospital equipment?
Calculate the maximum power delivered across RL of the circuit....
Electrical Machines Action Commutator more Online Exam Quiz
Electrical Machines Principle Operation
Electrical Machines Questions Bank
Electrical Machines Rotating Amplifiers
Electrical Machines Rotor Emf Current Power
Electrical Machines Speed Control Dc Motors
Electrical Machines Starting Polyphase Induction Motors I
Electrical Machines Starting Synchronous Motors