. Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent totwo oppositely-rotating fields. Develop an expression for the torque of the motor.A 125-W, 4-pole, 110-V, 50-Hz single-phase induction motor has the no-load rotational loss of 25watts and total rotor copper loss at rated load of 25 watts at a slip of 0.06.At a slip s = 0.06, what is the power input to the machine ?

Answered: Image /qna-images/answer/a85abc5a-de45-48fc-ae1c-95303bca9555.jpg

Answered: Explain how the pulsating mmf of a…

Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to two oppositely-rotating fields. Develop an expression for the torque of the motor.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Related questions

Q: An 8 poles, 50HZ, delta connected induction motor having 120 stator slots with 64 conductors in…

Q: In a 3-phase, 6-pole induction motor, The power crossing the air gap of a 60 Hz is 42.6 kW, and the…

A: An AC motor is an electrical machine which takes AC electrical input energy and produces mechanical…

Q: QI/Prove that the power developed by a three-phase induction motor is maximum when the equivalent…

A: in the case of the induction machine, we have stator side referred reactance as X01 and resistance…

Q: a. Use Thévenin's Equivalent circuits to derive expressions for power and electromagnetic torque…

Q: Derive the speed torque characteristics of induction motor from its equivalent circuit and also…

A: We have given the following problem

Q: How the rotating magnetic field is produced. Explain its importance in the operation of an Induction…

Q: Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to two…

Q: Would a positive-rotating harmonic or a your answer. negative-rotating harmonic be more harmful to…

A: This question is related to the effect of harmonics on the induction motor. The question is asking…

Q: A three-phase, 50-Hz, 6-pole induction motor develops a useful torque of 120 Nm at full-load, while…

A: Given : Pole = 6 Frequency =50 HZ Useful Torque = 120 Nm Rotor Frequency = 2 HZ torque Lost = 10…

Q: An 8 pole DC shunt generator with 900 wave-connected armature conductors supplies 10ohm at 500 V…

A: To find the answers, we can use the following formulas and calculations:1.1 The flux per pole:The…

Q: What is the effect of load on the efficiency of an induction motor? II. Explain the term air-gap…

A: As per the guidelines we supposed to answer one question at a time, so please ask other questions…

Q: Draw the approximate equivalent (without Xm) circuit of an induction motor and derive the equation…

A: Induction motor working Principle When an ac supply is connected to a stator it creates a rotating…

Q: We need to derive an oil burner with single phase induction motor. Suggest the best type of single…

A: Compared to Two Value Capacitance Induction Motor, the key benefit of capacitor start induction…

Q: A dc shunt generator has a critical field resistance of 400 at 1200 rpm. Now if the speed of the…

Q: The induced torque in induction machines depends on Select one: Oa. The slip O b. The mechanical…

A: In this question we will write about induction torque..

Q: In the load characteristics of a separately-excited DC generator, its output voltage decreases with…

A: The separately-excited DC generator the filed winding can be excited by an external source. This…

Q: Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to two…

A: Given, Output power, Pout=125 WNumber of pole. P=4Supply voltage, Vs=110 VFrequency, f=50 HzNo load…

Q: When drawing the steady state electrical model (for an AC induction motor), is the stator armaturre…

A: Here is the equivalent circuit of Induction motor

Q: • the stator diameter is 40 cm. • the coil length is 40 cm. • there are 25 turns per coil. • the…

A: In the given question , we note that The stator diametre is = 40 cm Coil length = 40 cm Number…

Q: Sketch the torque versus speed characteristic for a series-connected dc motor.

A: The circuit diagram of the DC series motor can be drawn as Thus for constant power motor : Ns α 1Γ…

Q: a. Qualitatively describe the magnetic field set up in the air gap of a four-pole three-phase…

A: Given: To describe the magnetic field set up in the air gap of a four-pole three-phase induction…

Q: a) Briefly explain basic operating principle of an induction motor.

A: In this question we will write working principle of induction motor....

Q: How would you reverse the polarity of a self-excited DC generato

A: In this question we will write how we can reverse the polarity of self excited generator....

Q: A 100 V DC separately excited motor has armature resistance 2 ohms and voltage constant of 0.6 V…

A: V = 100 V Ra = 2 ohm Kb= 0.6 V/rad/s T= 20 Nm Kt = 50 Nm/s

Q: Q5// A: The below curve represents Ta/la characteristic of a dc series motor. Briefly discuss this…

Q: V DC separately excited motor has ure resistance 2 ohms and voltage constant V /rad/s. The field…

A: Note: As the question data is incomplete, still i am trying to solve it by taking some random data.…

Q: A dc motor has a back emf of 110 V and an armature current of 90 A when running at 1500 rpm. Find…

A: Given: Back emf = 110V Armature Current = 90A speed = 1500rpm. The torque can be calculated by using…

Q: The induced torque in induction machines depends on Select one: Oa The slip Ob. The mechanical speed…

A: The explanation is as follows.

Q: 4) A 40-kW induction motor, with a lagging power factor of 0.76 is supplied by a 120-Vrms, 60-Hz…

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

. Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to
two oppositely-rotating fields. Develop an expression for the torque of the motor.
A 125-W, 4-pole, 110-V, 50-Hz single-phase induction motor has the no-load rotational loss of 25
watts and total rotor copper loss at rated load of 25 watts at a slip of 0.06.
At a slip s = 0.06, what is the power input to the machine ?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.

Similar questions

A DC motor with a shunt field winding has the following characteristics: Vr = 96.0 V R = 1.50 Q K = 0.352 m Specify the flux required to achieve a starting torque of 18 Nm.
Induct.motor.
Calculate the torque in N-m exerted by a motor with 100 conductors, 5 inches long, on the armature of a dc motor when it carries a current of 60 amperes and lies in a field of intensity 50,000 lines per inch square and diameter of the armature of 10 inches.
SUBJECT = ELECTRIC MACHINES In an induction motor, If the rotor speed becomes equal to the stator field speed, what would happen? Explain
Subject: Electrical Machines
1. A machine delivers power to the load at 220 V while being driven at 1,050 rpm. At this load, the armature circuit dissipates 650 W. The armature of a 6-pole separately excited dc generator is lap wound with 534 conductors. If the flux per pole of this generator is 30- mWb, determine the kW rating of the load served. Assume a total brush contact drop of 1.5 V.
Solve as soon as possible
A motor’s rotor spins at 1,000 rpm when no load is applied (i.e. torque = 0), but reduces to 900rpm when the rated torque of 2.3 N-m is applied. Determine the speed regulation and output horsepower at the rated load condition. If the motor’s input power is 500 Watts at the rated load condition, what is the efficiency?
For a 4-pole dc armature with 28 slots and 8 coil-sides per slot, find the winding pitches and the commutator pitch for a wave winding. What is the distance between brushes in terms of commutator segments?