Q8 :A 0.25 hp; 110-V; 60 Hz; 4 poles single phase induction motor has the following Circuitparameters:R₁ = 1.592; X₁ X₂= 202 ; R₂=3Q2 ; Xm= 50 Q ; At S = 0.05.Find:1. Motor input (stator) current 2. motor torque, T.Q9: If the motor is operated at rated voltage and frequency. The combined rotational and corelosses are Prot + Pcore = 30 W. find the 1. Output torque 2. Output power and 3. EfficiencyAns 1. 231.8 W 2. 1.29 N-m 3.61.7%

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Q8 :A 0.25 hp; 110-V; 60 Hz; 4 poles single phase induction motor has the following Circuit parameters: ; Xm = 50 Q ; At S = 0.05.Find: R₁ = 1.592; X₁=X₂= 2 Q ; R₂ 32 1. Motor input (stator) current 2. motor torque, T.

Q8 :A 0.25 hp; 110-V; 60 Hz; 4 poles single phase induction motor has the following Circuit parameters: ; Xm = 50 Q ; At S = 0.05.Find: R₁ = 1.592; X₁=X₂= 2 Q ; R₂ 32 1. Motor input (stator) current 2. motor torque, T.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter32: Three-phase Motors

Section: Chapter Questions

Problem 6RQ: Name three factors that determine the torque produced by an induction motor.

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Concept explainers

Single Phase Induction Motor

The single-phase induction motor or engine consists of a single rotating phase in the stator and a rotating cage in the rotor. When phase one supply is connected to the stator winding, a magnetic field is generated. In the pulsating field, the rotor does not rotate due to inertia. So, a single-phase import motor does not start and requires some initial methods.

Question

Q8 :A 0.25 hp; 110-V; 60 Hz; 4 poles single phase induction motor has the following Circuit
parameters:
R₁ = 1.592; X₁ X₂= 202 ; R₂=3Q2 ; Xm= 50 Q ; At S = 0.05.Find:
1. Motor input (stator) current 2. motor torque, T.
Q9: If the motor is operated at rated voltage and frequency. The combined rotational and core
losses are Prot + Pcore = 30 W. find the 1. Output torque 2. Output power and 3. Efficiency
Ans 1. 231.8 W 2. 1.29 N-m 3.61.7%

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