A three-phase, 60 Hz, squirrel-cage induction motor draws a current of 385 amps per phase and a total active power of 2344 kW when operating at full load from a 4000 volt (line) supply. The corresponding speed is 709.2 rev/min. The stator is star-connected and the resistance between two stator live terminals is 0.1 ohms. The machine has 10 poles, the total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate: (i) the power factor at full load? (ii) the active power supplied to the rotor? (iii) the total I'R losses in the rotor?

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Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.