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Answer to Question #74901 in Electrical Engineering for tim

Question #74901
A direct motor is developing 90.6kW at a speed of 2000r/min. The motor is connected to a 480V supply. The cost of electrical energy is 45.4c/kWh and the efficiency of the motor is 86.4%. Calculate the torque available at the shaft of the motor
Expert's answer
The torque available at the shaft of the motor is
T=η 9550P/ω
T=0.864 (9550(90.6∙〖10〗^3))/2000=374000 Nm=374 kNm.

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