A 4 pole, 50Hz , 3 phase I M is running at 1425rpm on full load having – McqOptions

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1.	A 4 pole, 50Hz , 3 phase I M is running at 1425rpm on full load having rotor impedance per phase on standstill as 0.4+j2Ω. If voltage between the slip rings on open circuit is 520V then the maximum torque developed is ___ Nm.
A.	202.52
B.	165.53
C.	430.36
D.	514.21
Answer» D. 514.21

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