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Motor A is a 15-HP 1720-rpm 440-volt 60-Hz 4-pole 3-phase wye-connected induction with per-phase parameters: Stator resistance = 0.2 ohms Stator leakage reactance = 0.5 ohms Rotor resistance (referred to stator) = 0.3 ohms Rotor reactance (referred to stator) = 0.6 ohms Magnetizing reactance = 30 ohms Core losses ≈ 0 Rotational losses = 30 watts, constant with respect to the motor's load. Determine the developed torque at full load condition.

Motor A is a 15-HP 1720-rpm 440-volt 60-Hz 4-pole 3-phase wye-connected induction with per-phase parameters: Stator resistance = 0.2 ohms Stator leakage reactance = 0.5 ohms Rotor resistance (referred to stator) = 0.3 ohms Rotor reactance (referred to stator) = 0.6 ohms Magnetizing reactance = 30 ohms Core losses ≈ 0 Rotational losses = 30 watts, constant with respect to the motor's load. Determine the developed torque at full load condition.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Motor A is a 15-HP 1720-rpm 440-volt 60-Hz 4-pole 3-phase wye-connected induction with per-phase parameters:

  • Stator resistance = 0.2 ohms
  • Stator leakage reactance = 0.5 ohms
  • Rotor resistance (referred to stator) = 0.3 ohms
  • Rotor reactance (referred to stator) = 0.6 ohms
  • Magnetizing reactance = 30 ohms
  • Core losses ≈ 0
  • Rotational losses = 30 watts, constant with respect to the motor's load.

Determine the developed torque at full load condition.

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