A440V,22.5-hp,50Hz,3-phase,4-pole,star-connectedinductionmotorhasthefollowing impedances in ohms per phase referred to the stator circuit: R1 = 0.55Ω R2 = 0.35Ω X1 = 1.105Ω X2 = 0.456Ω XM = 27.1Ω The total rotational losses are 1105 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 2.3% at the rated voltage and rated frequency, calculate: d) Electrical power, e) Output power, f) Efficiency.
A440V,22.5-hp,50Hz,3-phase,4-pole,star-connectedinductionmotorhasthefollowing impedances in ohms per phase referred to the stator circuit: R1 = 0.55Ω R2 = 0.35Ω X1 = 1.105Ω X2 = 0.456Ω XM = 27.1Ω The total rotational losses are 1105 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 2.3% at the rated voltage and rated frequency, calculate: d) Electrical power, e) Output power, f) Efficiency.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter3: Power Transformers
Section: Chapter Questions
Problem 3.9MCQ: Match the following: (i) Hysteresis loss (a) Can be redud by constructing the core with laminated...
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A440V,22.5-hp,50Hz,3-phase,4-pole,star-connectedinductionmotorhasthefollowing impedances in ohms per phase referred to the stator circuit:
R1 = 0.55Ω R2 = 0.35Ω
X1 = 1.105Ω X2 = 0.456Ω XM = 27.1Ω
The total rotational losses are 1105 W and are assumed to be constant. The core loss is lumped in with the rotational losses. For a rotor slip of 2.3% at the rated voltage and rated frequency, calculate:
d) Electrical power,
e) Output power,
f) Efficiency.
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