the stator input impedance of the motor is??
Q: 1. Calculate the synchronous speed of 60-Hz induction motors having four poles 2. Calculate the…
A: (1) Given: Frequency, f = 60 Hz. Number of poles, P = 4
Q: Q4. What do you mean by circle diagram of a 3-phase induction motor? Answer the following: (i) (ii)…
A: Circle diagram - By adjusting the slip of an induction motor, the total efficiency may be achieved.…
Q: A 4-pole, 3-phase , 50 Hz induction motor has a rotor resistance of 0.022 per phase and standsti…
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Q: Which of the following option is correct for 3-phase induction motor drive? O a. Only voltage is…
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Q: Q23/ The rotor of a 4-pole, 50 Hz, 3-phase slip-ring induction motor has a resistance of 0.252/phase…
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Q: A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor has the following equivalent…
A: Given: The values of resistance and inductance for main winding are : R=1.5ΩX=2.5Ω The value of…
Q: 2. A3-phase, 4-pole, 50 Hz, 208 V induction motor has a slarung of 225 N-m. If a reduced voltage of…
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Q: Which of the following option is correct for 3-phase induction motor drive? O a. Only voltage is…
A: Choose correct option for 3 phase induction motor? Method of the speed control of the 3 phase…
Q: Q1// A double-cage of a 3-phase, 50-Hz, 4-pole induction motor, have the following equivalent…
A: It is given that: f=50HzP=4V=230 VNr=1425 rpmOuter cage:Ro'=9Ω Xo'=2ΩInner cage:Ri'=2Ω Xi'=8Ω
Q: A three phase induction motor designed for a rated voltage of Vi at 50 Hz is accidentally switched…
A: according to guidelines we need to solve only the first question. According to the question we have…
Q: A 4-pole, 3-phase, 50Hz induction motor has a voltage between slip-rings on open circuit of 520V.…
A: Given: P=4f=50HzNr=1425rpmV=520VR2=0.4?X2=2? (a) Synchronous speed can be calculated by…
Q: Determine the emf induced & efficiency for a 3300V, 3- phase star connected synchronous motor draws…
A: In this question synchronous motor is given....We have to find out induced emf and efficiency of…
Q: 6.36 A 440 V, 3-phase, 50 Hz, 6-pole, 945 rpm, delta connected induction motor has following…
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Q: Problem 2: Given is a 3-phase, 60HZ, 4-pole Induction motor with a rated power of 3.0hp and a rated…
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Q: 3-A three-phase, 60-Hz, four-pole induction motor runs at a no-load speed of 1790 r/min and a…
A: In this question we will find slip , frequency of rotor at no load and full load ...Speed regulation…
Q: The resistance and standstill reactance of each phase of a 3-phase induction motor with star-…
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Q: How can the starting torque of a three-phase induction motor be increased? a) by increasing the slip…
A: As from starting torque formula, τst=kE22.R2R22+X22 As E2 is due to ϕ and ϕ is due to supply voltage…
Q: 3. Compare 3 phase synchronous motor with 3 phase induction motor as regards : (i) cost and size , (…
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Q: b) A 20kW, 4-pole induction motor is designed to operate from a 440V, 50Hz, three-phase supply, and…
A: Given: A 20 kW, 4-pole induction motor is designed to operate from a 440 V, 50 Hz, three-phase…
Q: amount of power that the motor produces.
A: Three Phase Induction machine- This Induction machine comprises of rotor and stator as it basic…
Q: The resistance and standstill reactance of each phase of a 3-phase induction motor with star-…
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Q: A 3-phase, 350 hp, 480V induction motor has the design life of 18 years at 100°C rise in conductor…
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Q: A three-phase induction motor is rated at 5 hp, 1760 rpm, with a line-to-line voltage of 220 Vrms.…
A: Speed regulation is independent of motor rating and voltage The only things needed are no load and…
Q: 21. A) At what percentage of slip is the pull-out or breakdown torque of a typical 3-phase…
A: Three phase induction motor is single excited system which is electrical analogy with secondary…
Q: The 3-phase squirrel-cage induction motor has a poorer starting torque than might be expected based…
A: Solution: Torque of an induction motor depends on rotor reactance and rotor resistance. Torque of an…
Q: 17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked…
A: Given Data: Main winding Voltage = 32 V Current = 4 A Power = 80 W Auxiliary winding Voltage = 40…
Q: A 3-phase, 4-pol, 50-Hz induction motor has a star-connected rotor. The voltage of each rotor phase…
A: Given: Frequency f=50 Hz No of pole = 4 Rotor current I2r=15A Rotor resistance r=0.3Ω Voltage at…
Q: A three-phase, 415V, 50Hz, six-pole, star-connected induction motor is driven from a variable…
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Q: A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked…
A: Motor: It is an electromechanical device that converts the electrical power into mechanical energy.…
Q: 1-The rotor of a 4 pole, 50 Hz, slip ring induction motor has a resistance of 0.25 ohm per phase and…
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Q: Question 5 A three-phase, 60-Hz, four-pole induction motor runs at a no-load speed of 1790 rpm and a…
A: Given : A 3- phase 60 Hz 4- pole induction motor To find slip and rotor frequency at no load and…
Q: Q2 i) Explain with sketch the working of the three phase slip ring Induction Motor with a special…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
Q: 19. A 4-pole, 115 V, 60 Hz, 1710 rpm, capacitor-start single-phase induction motor has been designed…
A: Given: A 4-pole, 115 V, 60 Hz, 1710 rpm, capacitor-start single-phase induction motor has been…
Q: 20. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor has the following…
A: According to bartleby only three subparts are to be answered. Kindly repost remaining subpart.
Q: Q28/ For a 3-phase slip-ring induction motor, the maximum torque is 2.5times the full-load torque an…
A: Given data, A 3-phase slip ring IM τmax=2.5τflτst=1.5τflsfl=0.03
Q: A 3-phase 400 V, 50 Hz, 6-pole star connected induction motor develops maximum torque at a speed of…
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Q: 4-25- six pole. Three phase. 40-hp, 60-Hz induction motor has an input when loaded of 35 kw, 51A ,…
A: Given data: At loading condition: 35 kW, 51 A, 440 V At no load: 2.3 kW, 21.3 A
Q: (b) The parameters of the equivalent circuit for a three-phase. Y- connected. 22ov, 60HZ. six-pole…
A: In this question, We need to determine the stator input current, power factor, air gap power and…
Q: A 6-pole, 50 Hz, 3-phase induction motor has a full load speed of 950 rpm. Its speed in RPM at half…
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Q: 3-phase induction motor is wound for 8-pole and is supplied from 50 Hz system calculate (1) the…
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Q: 1: The resistance and stand-still reactance per phase of a 3-phase, 4-pole, 50 HZ induction motor…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: In a certain 3-phase induction motor, the resistance is one fifth the leakage reactance for both…
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Q: 3. A three phase, 25-hp, 60 Hz, 440-V, 4-pole induction motor is operated at rated voltage and rated…
A: According to the question we have to find a slip at maximum torque, maximum torque, slip at maximum…
Q: A 10HP, 550V, 60HZ, 3-phase induction motor has a starting torque of 160% of full-load torque and…
A: In this question we need to find a voltage in order that the starting current be limited to full…
Q: 17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked…
A: Given data is- In the induction motor- Voltage V=120 vFrequency f=60 HzNo. of poles P=4 Firstly…
Q: single-phase induction motor is rotating at a speed of 1790 rpm. It ameplate is; 150-V, 60-Hz,…
A: In this question, single phase induction motor is given..We have to find its slip in forward…
Q: A three-phase, 480V, 1460rpm, 50HZ, four-pole, Y-connected wound rotor induction motor has the…
A: For the given 3 phase Y-connected wound rotor Induction motor V =480 V f= 50 Hz Following is…
Q: 24/ The resistance and standstill reactance of each phase of a 3-phase induction motor with star-…
A:
Q: 17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked…
A: Part(a): Main Winding: P=VIcosϕ80=32×4×cosϕcosϕ=8032×4cosϕ=0.625ϕ=51.318° Standstill impedance for…
A three phase star connected six -pole induction motor has the following parameters. R1=0.294ohm, R2=0.144ohm, X1=0.503ohm, X2=0.209ohm, Xm= 13.5ohm. The slip of the motor is 2 percent. the stator input impedance of the motor is??
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- An 8 pole, 50 Hz slip ring induction motor runs at a slip of 2.67% on full load. The rotor resistance per phase of the winding is 0.2 ohm. What external resistance per phase must be added in the rotor circuit so that the motor now runs ate a slip of 17.33% such that the torque remains same in both the cases. (Ans: 1.1 ohm)7- A 6-pole, 50-Hz, 3-0 induction motor is running at 950 rpm and has rotor Cu loss of 6 kW. Its rotor input is......kW (a) 120 (b) 60 (c) 6.3 (d) 66 8- The number of slip rings on a squirrel cage induction motor is usually (a)Two (b) Three (c) Four (d) NoneL-1). The 3-phase wound-rotor induction motor has .... . a) high starting torque b) low starting current c) both "a" and "b" d) neither "a" nor "b" L-2). The 3-phase wound-rotor induction.........a) motor has a wire wound rotor b) motor's rotor can be connected to an external resistive load by way of slip rings and brushes c) motor requires more maintenance than the 3-phase squirrel-cage induction motor d) all of the above L-3). The 3-phase wound-rotor induction motor's rotor circuit's resistance should be adjusted so it is__________ during starting. a) low b) high c) either "a" or "b" d) neither "a" nor "b" L-4). Will a 3-phase wound-rotor induction motor start with no external circuit connected to its rotor leads? a) yes b) no
- 2. Describe the Torque-Slip characteristics of a three phase induction motor.6- Which of the following supply is given to the rotor winding of 3-Phase Induction Motor: a) DC Supply b) AC Supply c) No Supply d) Pulsating Supply 7- 3-Phase Induction Motor will have Starting Torque and Starting Current a) High, High b) Low, Low. c) High, Low d) Low, High 8- Which of the following method is used for controlling the speed of an induction motor: a) Changing number of stator poles b) Supply voltage control c) Frequency control d) All the options are correct 9- Which of the following method cannot be used for starting of 3-Phase Squirrel Induction Motor: a) Star-Delta Starting b) Line resistor startling c) transformer Starter d) Rotor Resistance Starting 10- The rotor of a stepper motor has no: a) windings b) commutator c) brushes d) all of the aboveA 3 phase, 400-V, 50 Hz 4 pole induction motor is fed from a 3-phase supply and runs of 1425 rpm. The frequency of the rotor emf is.....
- A freewheeling DC motor is driven with 1000 rpm and a nominal load torque of 80Nm. The field circuit resistance is 200 and the armature circuit resistance is 0.2 O. The field coils are fed with a zero degree transmission angle through a single-phase fully controlled converter connected to a single-phase 240V source. The armature circuit is fed from a single phase 400V source through another fully controlled converter. Magnetic saturation has been neglected, the motor constant is given as 0.8 V - s / A - rad. Assuming that there is no fluctuation in armature and field current, find the control angle of the converter feeding the armature at nominal load. If you want to leave the question blank, click again on the option you marked.The name plate of single phase induction motor has following data output 373W,230V, frequency 50Hz. Input current 2.9A and power factor is 0.71. Speed 1420 rpm What is efficiency of motor.Explain torque speed/torque slip characteristics of 3 phase induction motor.
- why the slip of induction motor is never zero.5. A six-pole induction motor operating in the United States has a rated slip of 3%. What is its rated rate of rotation?What are the various losses in an induction motor? On what factors do they depend? IV. V. List the different types of stray load losses in an induction motor.