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The parameters of the exact equivalent circuit for a three-phase, A- connected, 400-V, 10-hp, 50-Hz, six-pole induction motor are given in ohms per phase referred to the stator: R1 = 0.9, R2= 0.45, X = 1.5, X12= 0.6, and X = 45. The total friction, windage, and core losses can be assumed to be constant at 600 W, independent of load. For a per-unit slip of 0.02, when the motor is operated at rated voltage and frequency, calculate the stator input current, the power factor at the stator terminals, the rotor speed, output power, output torque, and efficiency. 1. %3D %3D

The parameters of the exact equivalent circuit for a three-phase, A- connected, 400-V, 10-hp, 50-Hz, six-pole induction motor are given in ohms per phase referred to the stator: R1 = 0.9, R2= 0.45, X = 1.5, X12= 0.6, and X = 45. The total friction, windage, and core losses can be assumed to be constant at 600 W, independent of load. For a per-unit slip of 0.02, when the motor is operated at rated voltage and frequency, calculate the stator input current, the power factor at the stator terminals, the rotor speed, output power, output torque, and efficiency. 1. %3D %3D

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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The parameters of the exact equivalent circuit for a three-phase, A- connected, 400-V, 10-hp, 50-Hz, six-pole induction motor are given in ohms per phase referred to the stator: R1 = 0.9, R2= 0.45, X = 1.5, X12= 0.6, and Xm = 45. The total friction, windage, and core losses can be assumed to be constant at 600 W, independent of load. For a per-unit slip of 0.02, when the motor is operated at rated voltage and frequency, calculate the stator input current, the power factor at the stator terminals, the rotor speed, output power, output torque, and efficiency. For the motor specified in problem 1, compute the following: a) The load component I2 of the stator current, the internal torque T, and the internal power Pm for a slip of 0.02. b) The maximum internal torque, and the corresponding slip and speed. c) The internal starting torque and the corresponding stator load current I2. d) Predict and draw the Torque-Speed curve for this motor. e) The acceleration torque of this motor if the load torque is 1. 2. constant. d bu usino the Y/A
Transcribed Image Text:The parameters of the exact equivalent circuit for a three-phase, A- connected, 400-V, 10-hp, 50-Hz, six-pole induction motor are given in ohms per phase referred to the stator: R1 = 0.9, R2= 0.45, X = 1.5, X12= 0.6, and Xm = 45. The total friction, windage, and core losses can be assumed to be constant at 600 W, independent of load. For a per-unit slip of 0.02, when the motor is operated at rated voltage and frequency, calculate the stator input current, the power factor at the stator terminals, the rotor speed, output power, output torque, and efficiency. For the motor specified in problem 1, compute the following: a) The load component I2 of the stator current, the internal torque T, and the internal power Pm for a slip of 0.02. b) The maximum internal torque, and the corresponding slip and speed. c) The internal starting torque and the corresponding stator load current I2. d) Predict and draw the Torque-Speed curve for this motor. e) The acceleration torque of this motor if the load torque is 1. 2. constant. d bu usino the Y/A
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