A 3-phase, 2200-V, delta-connected, 12-pole 60-Hz induction motor runs at no load with rated voltage and frequency impressed and draws a line current of 20 Amp. and an input power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor resistance r is 0.2 Ohm per phase. Also, x1+x2'=2.00 per phase. The motor runs at a slip of 2% when it is delivering power to a load. For this condition, determine a) The developed torque. b) The input line current and power factor.

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A 3-phase, 2200-v, delta-connected, 12-pole 60-Hz induction motor runs at no load with
rated voltage and frequency impressed and draws a line current of 20 Amp. and an input
power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor
resistance r is 0.2 Ohm per phase. Also, x1+x2'=2.0 0 per phase. The motor runs at a slip of
2% when it is delivering power to a load. For this condition, determine
a) The developed torque.
b) The input line current and power factor.
Transcribed Image Text:A 3-phase, 2200-v, delta-connected, 12-pole 60-Hz induction motor runs at no load with rated voltage and frequency impressed and draws a line current of 20 Amp. and an input power of 14 Kw. The stator is Y-connected, and its resistance per phase is 0.4 Ohm. The rotor resistance r is 0.2 Ohm per phase. Also, x1+x2'=2.0 0 per phase. The motor runs at a slip of 2% when it is delivering power to a load. For this condition, determine a) The developed torque. b) The input line current and power factor.
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