engineering recuitment MAHATRANSCO AE Electrical Mock Test Electrical Machines Three Phase Induction Motor Induction Motor Equivalent Circuit
The current source of 30 A/ph is applied to a 3-phase induction motor, per phase parameters of the machines is given as
r1 = 4Ω , x1 = x2 = j1Ω, r2 =0.4Ω, Xm = j50Ω
then find at what slip maximum torque is achieved?
1
0.4
2
0.00784
3
0.2
4
0.7
5
None of these