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One 3-phase induction motor is running, voltage (RY=392V, YB=394V, BR=380V), current (R=2.1A, Y=2.9A, B=2.1A), speed=2900rpm, pf=0.8. How to calculate motor efficiency and torque, give the formula.

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Motors

Term: Motors
One 3-phase induction motor is running, voltage (RY=392V, YB=394V, BR=380V), current (R=2.1A, Y=2.9A, B=2.1A), speed=2900rpm, pf=0.8. How to calculate motor efficiency and torque, give the formula.

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