parameters of the exact equivalent circuit for a three-phase, connected, 400-V, 10-hp, 50-Hz, six-pole induction motor a given in ohms per phase referred to the stator: R1 = 0.9, R2= 0.45, X1 = 1.5, X12= 0.6, and Xm = 45. The tot friction, windage, and core losses can be assumed to be constant 600 W, independent of load. For a per-unit slip of 0.02, when th motor is operated at rated voltage and frequency, calculate tI 1. The orminols t

Introductory Circuit Analysis (13th Edition)
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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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