iv) A three-phase induction motor has a power rating of 50 horsepower and operates at an efficiency of 85%. The line voltage is 440 volts, and the power factor of the motor is 0.85 lagging.
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85) Input Power = 58.82 horsepower Show more…
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A $440-\mathrm{V}$ -rms (line-to-line voltage) threephase induction motor runs at $1150 \mathrm{rpm}$ driving a load requiring $15 \mathrm{Nm}$ of torque. The line current is $3.4 \mathrm{A}$ rms at a power fac. tor of 80 percent lagging. Find the output power, the power loss, and the efficiency.
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