b)A single-phase induction motor, 4 hp, 120 V, 50 Hz, 3% slip has the followingequivalent circuit parameter.Determine thei)R₁ = 40X1 = j4.5 ΩZf = 14 +j15Zb= 0.5 +j1.5Input Current and power factorInput powerDevelop power

Answered: Image /qna-images/answer/b2479105-d9fe-418b-88ec-3a89c9bf37b3.jpg

b) A single-phase induction motor, ¼ hp, 120 V, 50 Hz, 3% slip has the following equivalent circuit parameter. Determine the i) ii) iii) R₁ = 40 X1 = j4.5 Ω Zf = 14 +j15 n Zb= 0.5 +j1.5 Input Current and power factor Input power Develop power

b) A single-phase induction motor, ¼ hp, 120 V, 50 Hz, 3% slip has the following equivalent circuit parameter. Determine the i) ii) iii) R₁ = 40 X1 = j4.5 Ω Zf = 14 +j15 n Zb= 0.5 +j1.5 Input Current and power factor Input power Develop power

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

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Concept explainers

Synchronous Motor

The synchronous motor is an AC electric type motor where at a steady-state the shaft rotation is synchronized with the supply current variable-frequency. To an integral number of AC cycles, the rotation period is exactly equal. The stator of the motor in the synchronous motor contains multi-phase AC electromagnets due to which a magnetic field is created that rotates in time with the oscillation of the line current. The rotor contains a permanent magnet and the rotor rotates in synchronization with the stator field at the same rate and provides the second synchronized magnetic field which is rotating in nature as a result. When the synchronous motor is supplied with independently excited multi-phase AC electromagnets on both the rotor and the stator, it is termed as a doubly-fed machine. The most widely used AC-type motors are the synchronous AC motor and the induction AC motors.

Question

b)
A single-phase induction motor, 4 hp, 120 V, 50 Hz, 3% slip has the following
equivalent circuit parameter.
Determine the
i)
R₁ = 40
X1 = j4.5 Ω
Zf = 14 +j15
Zb= 0.5 +j1.5
Input Current and power factor
Input power
Develop power

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