Question

QUESTIONS Nameplate Information 50 horsepower O Three phase a Insulation class: F O 1.15 service factor ロ Max amb temp: 40 °C 1765 rpm O NEMA 326T frame NEMA code: G 208-230/460 v O NEMA design: B O 140-122/61 A o Time rating: NEMA norm eff: 92.4% NEMA min eff: 91.0% continuous for an AC induction motor, determine the nameplate (rated) motor torque (in N.m) that the machine can provide. Assume the machine will be operated Given the where the ambient temperature is 10 C. Enter the one best answer (as a number without the units) trom the following choices 138 Nm 140 Nm 152 rpm 202 rpm 232 rpm 262 rpm 300 rpm

Answer 1

T_Nm = P_W 9.549 / n     

where

T_Nm = torque (Nm)

P_W = power (watts)

n = revolution per minute (rpm)

50r0.7469.549 1765 T= 201.8-202Nm

Answer is 202 without unit