Question 2 A. The forward field impedance of a 0.25 hp four-pole 110-V 60-Hz single-phase induction motor for a slip of 0.05 is given by Zf= 12.4 + j16.98 Q. I. Assume that Xm= 53.5 Q; find the values of the rotor resistance and reactance. II. Assume that the stator impedance is given by Zı = 1.86 + j2.56 Q. Find the internal mechanical power, output power, power factor, input power, developed torque, and efficiency, assuming that friction losses are 15 W. B. A two-pole 60-Hz induction motor develops a maximum torque of twice the full-load torque. The starting torque is equal to the full load torque. Determine the full load speed.

Question 2 A. The forward field impedance of a 0.25 hp four-pole 110-V 60-Hz single-phase induction motor for a slip of 0.05 is given by Zf= 12.4 + j16.98 Q. I. Assume that Xm= 53.5 Q; find the values of the rotor resistance and reactance. II. Assume that the stator impedance is given by Zı = 1.86 + j2.56 Q. Find the internal mechanical power, output power, power factor, input power, developed torque, and efficiency, assuming that friction losses are 15 W. B. A two-pole 60-Hz induction motor develops a maximum torque of twice the full-load torque. The starting torque is equal to the full load torque. Determine the full load speed.

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: Provide your recommendations for reduction of magnetic losses in an induction motor.

A: The energy expended when an alternative magnetic field works on a Ferro-or ferrimagnetic material,…

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: B/ fill in the blanks: A. The power factor of a squirrel cage induction motor is.... at light load…

A: In this question We need to fill all the blank. All questions are related to the induction motor.…

Q: I. Problem solving. Solve the following problems. 1. A 36-pole alternator is operated at 20 rps.…

Q: QUESTION 12 An 6.6 kV, three-phase star-co armature resistance is 1.2 Qa Determine efficiency of the…

A: Line voltage Full load current I = 200 A.Power factor = 0.8 ( Leading ).Armature resistance per…

Q: At standstill, the impedances of the inner and outer cages of an induction motor are Z, = 0.02 + j2…

A: The impedance of the inner cage at the slip s is given as, Zi=0.02+j2 ΩZI=0.02s2+22 The impedance…

Q: A 18600 W induction motor with six poles operates at 60Hz and shows a full-load slip of 6%: i) What…

A: Given: An induction motor has, Rated power, P0=18600 W Poles, P=6 Frequency, f=60 Hz Slip, s=6%=0.06…

Q: he speed of an induction motor fed from a 3-phase and 50 Hz source is 1440 rpm, so which of the…

Q: Q2. A three phase full wave uncontrolled bridge rectifier has an AC input voltage of 90 V RMS at 60…

A: Given data, Supply RMS voltage Vr=90 V. Frequency f=60 Hz. Load resistance RL=440 Ω.

Q: Discuss the effects of rotor resistance in T-S characteristics of 3 phase induction motor.

Q: What are the losses types of 3-phase induction motor?

Q: Q3/ A/ Compare between de series and shunt generator. Q3/ B/ Briefly explain the commutating process…

Q: 8) A 230 V fed single quadrant chopper has a 40% duty cycle. A separately excited DC motor is…

A: It is given that: Vs=230 VD=0.4km=0.5 VradsRa=2 ΩN=1400 rpm

Q: In an induction machine stator has 8 poles and is excited by a 60 Hz source. If the rotor is driven…

A: Sycronous speed=120×frequencypoles=120×608 =900 r.p.m Given rotor rotates in…

Q: a) The slip, and rotor mechanical and electrical speeds b) The stator and rotor currents c) The…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Discussion:- 1. What do you understand by "armature- reaction"? Discuss the effect of armature…

A: Solve the first question, unless the student has asked for a specific question to be solved, subject…

Q: ole,single-phase, squirrel-cage induction motor operates from a 115V, 50 Hz supply. Th measured…

A: Given data is shown below. 1∅, P=4, f=50Hz, 115VNr=1400rpmStator impedance=1.9+j2.7Rotor…

Q: A 110V, 4-pole, 50HZ, single-phase induction motor has a main winding impedance Zm-(2+j5) N. The…

A: Given data V=110 VP=4 f=50 HzZm=2+j5 ΩZ2=5+j4 ΩZa=7+j5 ΩXM=j60 ΩC=250 μFS=1

Q: Generators using salient pole structure rotors are called turbo-alternators. Select one: O True O…

A: The explanation is as follows.

Q: In an Induction motor, if the load is decreased, what happens to the power factor?Select one:a.…

A: When the load on an induction motor decreases, the motor draws less real power but still requires a…

Q: Two shunt generators A and B operates in parallel and their load characteristics may be taken us…

A: GivenGenerated voltage of A EgA=240 vcurrent in generator A IA=200 AGenerated votage of B EgB=245…

Q: self excited DC generator field wit nergized by its own DC supply elect one: OTrue OFalse

A: DC generators can be classified into self excited and separately excited.

Q: .The self-induction of acoil undergoing commutation causes..........at the brushes. 4.The back…

A: 3. .The self-induction of a coil undergoing commutation causes produce reactance voltage at the…

Q: 24. What will be the air gap power (in watts) developed by a 3-phase induction motor, whose ratings…

Q: Explain in detail the Starting of Induction Motors

Q: A shunt generator has a full-load current of 44A at 150V. The stray losses are 625W and the shunt…

A: Given:Full load current Stray losses Shunt field resistance To determine:Input power Armature…

Q: A 3-Phase 50 kW, 4-pole, 50 Hz induction motor has a winding (ac) designed for delta connection. The…

Q: In a 3-phase induction motor, express the mechanical power developed, in terms of air gap power Pg.

A: Given, To express the mechanical power developed in induction motor in terms of air gap power Pg.

Q: Types of three phase induction motor and its construction.

A: We need to tell about types of three phase induction motor and its construction.

Q: electrical and mechanical properties of an induction motor at no load, nominal load, and breakdown

A: Induction Motor- Induction motor is a motor which is also known as AC motor in which current…

Q: Consider a single phase synchronous machine of cylindrical rotor type. A single phase supply is…

A: The solution is provided in the following section:

Q: I. Problem solving. Solve the following problems. 1. A 36-pole alternator is operated at 20 rps.…

A: NOTE As per our guidelines we are supposed to answer only one question at a time. Please repost the…

Q: Write a summary ( point) about equivalent cricuit of three phase induction motor .

Q: Q / What is the benefit, purpose and conclusions of making single-phase induction motors .?

A: consider the given question;

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

Q: A 3-phose, 220 V, 10 hp, A-coun: 60 1/2 1.M; 6-pole Z₁ = 0.3-j015, Zu= 0/5 + √0₁2, Xm=j1352/phas.…

Q: SV What is clocking block ? what is program block?

A: Reg is driven by always block it can't be driven by continuous assignment statement. Always block…

Q: A three-phase induction motor used for a commercial application in Oman runs at 580 rpm at no load…

A: Given: A three phase induction motor No load speed = 580 rpm Speed at full load = 552 rpm To…

Q: IM

Concept explainers

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.

Question

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

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

Step by step

Solved in 8 steps with 15 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

choose
Discuss the behaviour of an induction motor when it is rotating at synchronous speed.
Please show the complete solution. Thank you so much Voltage Multipliers (electronics)
The synchronous reactance of a cylindrical rotor machine is unity. The machine is connected to an infinite bus bar through an equivalent reactance of half of its synchronous reactance. For a maximum power output of 1.3 p.u. delivered at 1.02 p.u. voltage, find E. While the field is undisturbed, find the value of the current if the real power output is reduced to 0.65.p.u.
Vi Q1) A 220 V, Four pole, 50 Hz Single phase induction motor hasy an actual impedances of Z1 = 1.86 +j 2.56, and Z2 = 3.56 +1 2.567 and total rotational losses (Pfe+ Pfw) of 62 W Find the motor Efficiency at Slip of (5%) Note Zf = 12.4 +j 17.15, Zb= 0.84 +j 1.26 Draw the equivalent circuit with the parameters? Solution: Rr ملاحظة: 72 تهمل لان الدائرة المكافئة لا تحتوي على Z2. 71=1.86 + 32.56.52 17 f = 12.4 +3 17.15 2 : Zb=0.84 + J 1.26 Zt 15.1 + j 20. 97 25.84 154.24.52 I in Put= 220 25-84 = 8.51 A 12= 733.31 1094.09 *100 = in Put Power = 220 * 8.51 * cos 54.24 1094.09 W iPd = 8.51² (12.4 -0.84) (1-0.05) = 795.31 w W out Put Power = 795.32-62 733.31 W 67.02% X1 = roo ea Xm xm R₂ R₂
tal At rest condition, the slip of induction motor is 0. Select one: True False In DC series motor when flux decreases, the speed w decrease zero remains same increase
i. Briefly describe the 5 major types of DC generators according to the manner in which their field flux is produced.
An induction motor is an O stepper motor O asynchronous machine. O DC machine O synchronous machine example of
Indui circuit resistance of 18 kW, 240V direct current series generator 0.12 Ohm, excitation winding resistance 0.08 is Ohm. Find the value of the moment induced in the inductor in this generator operating at 700 rpm at half load.
Find the value:
A 6-pole alternator running at 1000 rpm, supplies an 8 pole induction motors. Find the actual speed of the motor if the slip is 2.5%.
Explain in detail the Starting of Induction Motors