Reconnecting Induction Motors  14.a. If a 60-Hz three-phase motor has a nameplate full-load speed of 500 rpm, the number of pole-phase groups in the motor is A. 32. B. 42. C. 14. D. 24. 14.b. A 230-volt 60-Hz three-phase △-connected two-speed induction motor has a chord factor of 0.9 and 400 turns in series per phase. When the motor is running at its slow speed, the flux per pole is A. 553,000 lines of force. B. 290,000 lines of force. C. 319,000 lines of force. D. 502,000 lines of force.

Q: A three phase Y connected synchronous motor, 6600 V L-L , delivers 500 KW to the full load . Its…

A: Given data, Line Voltage, VL = 6600 V. Output power, Pout = 500 kW. Efficiency, η = 83% = 0.83.…

Q: Fill in the following blanks: 1. In order to have sparkless commutation, the brushes should be…

A: 1.In order to have  sparkless commutation, the brushes should be placed along the MNA axis 2.D.C…

Q: 8T A 4-pole, single-phase, squirrel-cage induction motor operates from a 115V, 50 Hz supply. The…

A: In this question,   We need to determine the output power and power factor of the induction motor?…

Q: A delta connected 1235 V, 50 Hz three phase induction motor has a star-connected slip-ring rotor…

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

Q: Q2: Choose TRUE or FULSE: 1-The series filed of a short- shunt de generator is excited by armature…

A: As per the guidelines I have to do a maximum of 3 subparts only so I request you to post remaining…

Q: A uniform line charge 1 nC/m is configured to form a 6-m side square centered at the origin and lies…

A: Uniform line charge is 1 nC/m lies at the origin. r = 5 m The formula of potential for a line charge…

Q: A 230 V single-phase induction motor has the following parameters: R1 =R2= 11 ohms, X1 = X2 = 14…

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

Q: How double field is produced in single phase induction motor? Draw the torque-speed characteristics.

A: single-phase induction motor as the name suggests it is run by a single-phase power supply. similar…

Q: b) A 4 poles , 50HZ ,Y-connected three phase induction motor has the per phase equivalent circuit…

A: Given data R1  = R2  =0.12ohm X1=X2 =0.6 ohm Xm =12ohm I2= 20A

Q: A three phase induction motor with supply frequency of 60 Hz, 6 poles. If the slip is 2.5 % at a…

A: (a) The synchronous speed of the three-phase induction motor is given by the expression as shown…

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: T9. Classify each of the following as being either a p type or an n type semiconductor i. Ge doped…

A: In this question,  Check the following material is p type or n type semiconductor?  We know  Ge is…

Q: An 6.6 kV. three-phase star-connected synchronous motor is working at full load and draws a curren…

A: Given Data:A three-phase star-connected synchronous motor with,Line voltage Line current Armature…

Q: (b) A three-phase, star connected alternator is rated at 1500kVA, 11kV. The armature effective…

A: Introduction Three-phase alternators: A three-phase alternator is a type of electrical machine used…

Q: Chess. loss 4-pole Q-1. A 440 V, 50 Hz, 37.3 Kw, 3-phase, star-connected induction motor has per…

A:

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: Draw the Terminal Characteristics of the following Generators. (i)Shunt DC Generator (ii)Series DC…

A:

Q: B) A 120-V, 50-Hz single phase induction motor (split -phase) has the following constants for the…

A: The solution for single phase induction machine is very easy and it can be solved as below

Q: A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in ohms…

A: Given  A 460-V, 25-hp, 60-Hz, four pole, Y-connected induction motor has the following impedances in…

Q: [62.3A, 0.82, 44.7A] age of 120 V between the slip rings on s reactance of 10 per phase at…

A: The solution is given below

Q: A balanced three phase induction motor has an efficiency of 0.85 when its output is 44.76 kW. At…

A: In this question,   We need to determine the slip of the induction motor?  If output power Po=…

Q: A transformer with full load voltage of 220 volts, when the regulation is 2%. The no load voltage…

A: Find explanation below

Q: a- Which of the following is/are a general class of single-phase split-phase motor? a…

A: 1) the general class of single-phase split-phase motor are  Resistance Start induction-run…

Q: A 4-pole, 3-phase alternator drives at 1000 r.p.m. is supplying to an induction motor which has full…

A: Given: 3 Phase Alternator P = 4 Ns = 1000 RPM Full load Speed = 2880 RPM

Q: Power will be consumed by the moto. it the blanks: 1. The two windings of a transformer is ...linked…

A: The answers to the all given questions is given below.

Q: A 3-phase, 415 V, 50 Hz induction motor draws 5 times the rated current at rated voltage at…

A: From the question, it is given that  Induction motor draws 5 times the rated current at rated…

Q: b) A 4 poles, 50HZ ,Y-connected three phase induction phase equivalent circuit parameters of ( R1=…

A: Given P =4 f =50 Hz R1 =R2 =0.12 X1 =X2 =0.6 Xm =12 ohm Slip s =0.03 Rotor current I2 =20∠0° A

Q: 4- The step-down transformer ?

A: Electrical machines can be either generator, motors or transformers. They can be either Ac machines…

Q: 3-phase 3730W, 220V, 6 pole and 50 Hz induction motor operates at full load with a slip of O.025.…

A:

Q: 4- Three phase induction motor with 2 poles feed from 220V,60Hz power supply. if the slip factor (S)…

A:

Q: Explain how the power flows in an induction machine, where losses occur and how they can be…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A synchronous, three-phase motor, connected in Y, with a frequency of 60Hz, 2300V, has a synchronous…

A: It is given that: frequency,  synchronous reactance, efficiency,  The power factor angle=15…

Q: ii) Analyse the superiority of the V/f method of speed control for three phase Induction Motor With…

A: The induction machine for the variable speed applications, especially the cage rotor type, is mostly…

Q: Q2) discuss (4) of the following: 1- What do you mean by speed of a 3-phase motor? 2- Why cannot…

A: 2) why cannot three phase motor run at synchronous speed ? Ans. In three phase motor there is some…

Q: E Q2 Machine Q2 )A 3-phase 6-pole 50Hz induction motor has a slip of 2% at no load and of 4% at full…

A:

Q: Explain the conditions for parallel operation of synchronous generators. A three phase, wye…

A: An alternator/Synchronous generator is a type of electrical machine that converts mechanical energy…

Q: (a) A 3-phase induction motor is being supplied at constant voltage and frequency. It drives a load…

A: The answer is given below steps

Q: b) A 4 poles , 50HZ ,Y-connected three phase induction motor has the per phase equivalent circuit…

A: 4 pole machine 50hz frequency

Q: 5- The rotor voltage per phase of a slip-ring star connected induction motor is 289.5 V. The rotor…

A:

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.