Q2. () With a neat diagram explain the power flow of an induction (ii) A 480-V, 60-Hz, 50-hp, three-phase induction motor is dra lagging. The stator copper losses are 2 kW, and the rotor copper friction and windage losses are 500 W, the core losses are 1800 are negligible. Find the following quantities: (a) The air-gap power, PAG (b) The power converted, PcONV (c) The output power Pout

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Q2. (i) With a neat diagram explain the power flow of an induction motor.
(ii) A 480-V, 60-Hz, 50-hp, three-phase induction motor is drawing 60 A at 0.85 PF
lagging. The stator copper losses are 2 kW, and the rotor copper losses are 700 W. The
friction and windage losses are 500 W, the core losses are 1800 W, and the stray losses
are negligible. Find the following quantities:
(a) The air-gap power, PAG
(b) The power converted, PcONV
(c) The output power Pout
(d) The efficiency of the motor.
Transcribed Image Text:Q2. (i) With a neat diagram explain the power flow of an induction motor. (ii) A 480-V, 60-Hz, 50-hp, three-phase induction motor is drawing 60 A at 0.85 PF lagging. The stator copper losses are 2 kW, and the rotor copper losses are 700 W. The friction and windage losses are 500 W, the core losses are 1800 W, and the stray losses are negligible. Find the following quantities: (a) The air-gap power, PAG (b) The power converted, PcONV (c) The output power Pout (d) The efficiency of the motor.
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