In a synchronous 3-ph motor the induced torque is in the same direction of rotation. Select one: O True O False
Q: A 280-V three-phase eight-pole 60-Hz induction motor is running at a slip 4 percent. Find: a. The…
A: Given , a 3- phase induction motor with 8 pole , 60 Hz and running at 4 % slip. To calculate speed…
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Q: The induced torque in dc motors beyond the pole edges is Select one: O a. infinity Ob. 180 V OC. 220…
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Q: A 440 V 3 phase 10 pole and 50 Hz synchronous motor delivering a torque of 50/TT Nm, delivers power…
A: Given a 3 phase synchronous motor having, Number of pole, P = 10 Frequency, f = 50 Hz Torque, τ=50π…
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Q: 1) Which of the following rule is used to determine the direction of rotation of D.C motor: A.…
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Q: Q5.A 50 HZ, 4-poles star connected induction motor has a slip=o.04 & Pout=20hp find: (1).Synchronous…
A: we need to determine Ns, Nr, Fr, Tl, Fr.
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A: An easy question based on electrical machines . I provided the detailed solution for the same , have…
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A: It is given that: Vs=230 VD=0.4km=0.5 VradsRa=2 ΩN=1400 rpm
Q: A 3 phase,50Hz ,8 pole induction motor has a full load slip of 4%. The rotor resistance is…
A: The ratio of the maximum torque to full load torque is given by the expression as shown below:…
Q: 2300 V 428 hp 60 Hz 8-pole synchronous motor has an efficiency of 85 percent Under this condition,…
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Q: The shunt field winding of the DC motor has less turns of thick wire. Select one: O True O False
A: The shunt field winding of the DC motor has less turns of thick wire.
Q: 3.54 A 3-phase, 50 Hz, six pole induction motor has a rotor resistance of 0.1 Q and reactance of…
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Q: A 10 pole three phase induction motor with supply frequency of 60 Hz. If the slip is 3 % at a…
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Q: series motors has a very high starting torque because its armature resistance is small O True O…
A: Given A true or false question based on series DC motor. Please find the answer below
Q: Rotor is held to step position in a stepper motor due to O Rotor flux alone O Stator and rotor flux…
A: Stepper motor: It is an electric motor whose main feature is that its shaft rotates by performing…
Q: A 480-V, three-phase, six-pole, 60Hz induction motor is running at slip of 3%. Find the speed of the…
A: Given: A 480 V, 3-phase induction motor with Number of poles, P=6 Supply frequency, f=60 Hz Slip,…
Q: 0-4:-A three phase induction motor has 4-pole runs at 1440 rpm on 500 V, s0 Hz. The mechanical power…
A: The solution can be achieved as follows.
Q: The linear induction motor has 98 poles and a pole pitch of 50 cm. Determine the synchronous speed…
A: Given values are - PolesP=98Pole pitch=50cm=0.5mf=50HzSlips=0.25 Given motor is linear induction…
Q: When a series dc motor is operated at load, which of the following conditions occurs
A: OPTION A i.e The field current increases is the correct answer
Q: 1. The distance of air gap between stator and rotor range from to depend on Motor's power. (a) 0.4…
A: As per guidelines we are supposed to answer only first three questions so please upload others…
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Q: 8. A 3-phase induction motor has a 4-pole, star-connected stator winding. The motor runs on a 50-Hz…
A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: ...... 4. The eddy current loss of ac motor is 100W at SOH2. Its loss at 100HZ will be S B) A…
A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.
Q: Torque developed by electrical motor acts in the opposite direction with direction of rotation of…
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Q: A. A reluctance motor has a coil of 1000 turns. The maximum and minimum values of the reluctance are…
A: Given: A reluctance motor has Number of turns in the coil, N=1000 The maximum and minimum values of…
Q: Q5.A 50 HZ, 4-poles star connected induction motor has a slip=o.04 & Pout=20hp find: (1).Synchronous…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
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Q: 1) When a synchronous motor is running at synchronous speed, the damper winding Produces......…
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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: 1. A 36, 4 pole induction motor is operating at 1620 rpm from a 60 Hz, 480 V supply. The voltage…
A: (a) Consider the formula for the speed. Ns=120fP Solve for the slip speed as, Ns=120604=1800 rpm
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Q: electrical machines A 220-V three-phase six-pole 50 Hz induction motor is running at a slip of…
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Q: Q22/ A three phase induction motor with supply frequency of 50 Hz , 10 poles. If the slip is 4 % at…
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Q: There is a three-phase double-cage induction motor that has a negligible stator resistance, as well…
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Q: in series connected DC motor, the equation of electromagnetic torque is O Te = Laf * If * la O Te =…
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Q: A 3-phase induction motor has a star-connected rotor. The rotor e.m.f. at standstill is 50V. The…
A: Given data, Emf is given, E=50 V Resistance is given R=0.5 Ω Reactance is given X=3 Ω
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Q: Torque developed by the cylindrical rotor synchronous motor is O directly proportional to the supply…
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Q: K-1)The speed of a 3-phase wound-rotor induction motor can be changed by varying the amount of…
A: Question K-1)The speed of a 3-phase wound-rotor induction motor can be changed by varying the amount…
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Q: 4. If the no load speed of DC motor is 1300 rpm and full load speed is 1100 rpm, then its voltage…
A: Given, A DC motor with No load speed = 1300 rpm Full load speed = 1100 rpm
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Q: In the DC Shunt motor, when the load increases Speed decreases. Select one: O True O False
A: True
Q: The core of a simple de motor is shown i
A: NOTE- “Since you have asked multiple questions, we will solve the first question for you. If you…
Q: (d) Calculate the speed of a 60-cycle, 14-pole motor if the slip s is 0.05.
A: Given: Frequency, f=60 Hz. Poles, P=14. Slip, s=0.05.
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Q: A three-phase induction motor operates at rotor speed n=1440 rpm. Find the voltage induced in the…
A: the following data is given in the question. Synchronous speed =1500 rpm motor speed = 1440 rpm…
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- Q1. Answer the following question briefly (not more than 4 lines) Why the rotor conductors of the squirrel cage rotor are short-circuited and in the case of slip-ring induction motors, the rotor circuit is closed through resistors? Q2. A -3-phase, 8-pole induction motor is required to be operated at about 700 rpm. If supply frequency is 60 Hz, determine its actual speed if slip is 5%. *A 3 hp, 3 phase, 4 pole, 400 V, 50 Hz induction motor runs atb1440 rpm, what will be frequency of rotor induced emf ?I asked the question 2 hours before but i didn't know the I had to upload by 3 -3 subparts so this is the rest of my previous question. PLEASE EXPLAIN THE d) sub part as soon as possible.Thanks in advance. The no-load and locked-rotor test results of a three-phase 10 HP, 220 V, 60 Hz, 6 poles star connected induction motor are; The no-load test: VNL=220 V, PNL=340 W, INL=6.2 A The locked-rotor test: VSC=54 V, PSC =430 W, ISC =15.2 A The voltage across the stator windings is 2 V when nominal DC current flows through it. Coefficient for DC resistance is 1,25. d) Slip value at the maximum (breakdown) torque,
- 2P=4 poles 230V-60HZ 3-phase round rotor synchronous motor is star connected. The synchronous reactance of the synchronous motor is j5Ω/phase, the voltage induced at the beginning of the phase is 200V, and the power angle is 30. Calculate the power and torque produced by the motor, ignoring the armature winding flux resistance.6pole, 3phase, 50HZ induction motor has arotor resistance of 0.02ohm/phase and stand still leakage reactance is 0.1 ohm/phase determine the speed to give max torque, what exrernal resistance per phase is necessary in the rotor circuit to give half maximun torque at starting?Thanks in advance. Please answer this question by explaining the each step and reasoning why u used that method or formula. By the way, this question is related to electromechanical energy conversion lecture. The no-load and locked-rotor test results of a three-phase 10 HP, 220 V, 60 Hz, 6 poles star connected induction motor are; The no-load test: VNL=220 V, PNL=340 W, INL=6.2 A The locked-rotor test: VSC=54 V, PSC =430 W, ISC =15.2 A The voltage across the stator windings is 2 V when nominal DC current flows through it. Coefficient for DC resistance is 1,25. a) Calculate the equivalent circuit parameters and draw the complete single-phase equivalent circuit of the induction motor. b) Calculate efficiency of the motor for s=0.06 by using the approximate equivalent circuit (RFe core resistance is not ignored). c) Shaft torque for s=0,06 d) Slip value at the maximum (breakdown) torque, e) Maximum (breakdown) torque of the induction motor. f) Speed of the motor at maximum torque point.…
- Type your question here The rotor of a 4 pole, 50 Hz, slip ring induction motor has a resistance of 0.25 ohm per phase and runs at 1440 rpm at full-load. Calculate the extemal resistance per phase, which must be added to lower the speed to 1200 rpm, torque remaining the same?A SCIM has the following specifications:480 V, 50Hz, synchronous speed of 750 rpm, 3-phase, Y-connected, 8-pole, stator resistance of0.9Ω, stator reactance of 4.9Ω, rotor resistance of 1.53Ω (referred to the stator), blocked rotorreactance of 4.9Ω (referred to the stator), core resistance of 441.1Ω, and magnetization reactanceof 50Ω. If it is operating at 735rpm, draw the equivalent circuit of the motor and calculate:1. The power delivered to the rotor from the stator2. The rotor losses3. The total mechanical power delivered to the load4. The torque delivered to the load5. The apparent power supplied from the source to the motor6. The power factor.149. Given a 60 Hz, four-pole, induction motors carries a rotor current per phase of 10amperes when loaded until the slip is 5%. If the rotor efficiency resistance is at 0.1 per-phase, what is the total torque transferred across the air gap in lb-ft?
- With the aid of mathematical expressions where necessary, explain the following terms with respect to squirrel cage induction motorsi. Friction and Windage lossesii. Stator Copper lossesiii. Rotor Copper lossesiv. Mechanical LossesThree phase induction motor Leakage Reactance five times Resistance for stator and rotor and impedance for stator and rotor is equal. Slip at full load is 0.02 .calculate the resistance that added for starting current equal three times full load current, Calculate starting torque in this case. if the slip ring is short circuited calculate the ratio of starting current in two cases ..no. of poles is 4 and frequency is 50 HzPlease explain your answers step by step how did you solve or why u needed those formulas etc. Thanks in advance. You know better than me but I'm mentioning just for clarification this question is on the electromechanical energy conversion. The no-load and locked-rotor test results of a three-phase 10 HP, 220 V, 60 Hz, 6 poles star connected induction motor are; The no-load test: VNL=220 V, PNL=340 W, INL=6.2 A The locked-rotor test: VSC=54 V, PSC =430 W, ISC =15.2 A The voltage across the stator windings is 2 V when nominal DC current flows through it. Coefficient for DC resistance is 1,25. a) Calculate the equivalent circuit parameters and draw the complete single-phase equivalent circuit of the induction motor. b) Calculate efficiency of the motor for s=0.06 by using the approximate equivalent circuit (RFe core resistance is not ignored). c) Shaft torque for s=0,06d) Slip value at the maximum (breakdown) torque, e) Maximum (breakdown) torque of the induction motor. f) Speed of…