FOSITYPASSAGEChoose the correct option.(MarkscayEvaluate the no load speed at 3% slipAssuming arı induction motor which is warking at supply frequency of 50 Hz ac supplyand having 6 poles. The slip of Induction motor at no load is 3% and at full load is 6%.Then selecting appropriate the value of slip determine following:OPTIONS960 rpm980 rpm970 rpm950 rpmSKIPhp

Given:Induction motorf=50 HzP=6s=3% or.03

PASSAGE Choose the correct option.(Marksc) Evaluate the no load speed at sip Assuming ari induction motor which is working at supply frequency of 5o Htz ac supply and having 6 poles, the slip of Induction motor at no load is 3% and at full load is 6% Then selecting appropriate the value ofr slip determine following: OPTIONS 960 rpm 980 rpm 970 rpm 950 rpm

PASSAGE Choose the correct option.(Marksc) Evaluate the no load speed at sip Assuming ari induction motor which is working at supply frequency of 5o Htz ac supply and having 6 poles, the slip of Induction motor at no load is 3% and at full load is 6% Then selecting appropriate the value ofr slip determine following: OPTIONS 960 rpm 980 rpm 970 rpm 950 rpm

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter35: Harmonics 916

Section: Chapter Questions

Problem 3RQ: Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction...

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Similar questions

Name three factors that determine the torque produced by an induction motor.
Would a positive-rotating harmonic or a negative-rotating harmonic be more harmful to an induction motor? Explain your answer.
The 3-phase 3730W, 220V, 2-pole and 50 Hz induction motor has a slip of 0.025 at full load. The future of friction (friction)+reducing losses and other (stray load) losses is 5%. Find the induced (electromagnetic) moment at full load. Answer guide group 12.7863 Nm 84.6395 Nm 70.7351 Nm 25.5725 Nm 40.2582 Nm 38.3588Nm 51,1451 Nm 63.3692Nm
A three-phase induction motor, operating at rated voltage and frequency, has a startingtorque of 1.35 times and a maximum torque of 2.2 times, both with respect to its rated-loadtorque. Ignoring the effects of the stator resistance and rotational losses and assumingconstant rotor resistance, determine the slip rated load, and the rotor current at starting (as a percentage of the rotor current at rated load). The slip at maximum torque is 0.343 if that helps.
A three-phase induction motor, operating at rated voltage and frequency, has a startingtorque of 1.35 times and a maximum torque of 2.2 times, both with respect to its rated-loadtorque. Ignoring the effects of the stator resistance and rotational losses and assumingconstant rotor resistance, determine the slip at the maximum torque;
Design and develop equivalent circuit model of a single phase Induction motor with th consideration of core losses present with the parameter consideration of stator resistance R1 and reactance X1 and two rotor parameters which includes r2,x2 and magnetising reactance xm. (Illustration is required) Draw by hand please
A 3-phase, 6-pole induction motor is rated 400Hz, 150V, 10hp, 3% slip at rated power output. The windage and friction loss is 200W at rated speed. With the motor operating at rated voltage, frequency, slip, and power output, determine the output torque.
3-phase 3730W, 220V, 6-pole and 50 Hz induction motor operates at full load with a slip of 0.025. The sum of the rotational losses including friction + windage losses and other (stray load) losses is 5% of the output power. Find the induced (electromagnetic) moment at full load
a. A three-phase, 220-V, 60-Hz induction motor runsat 1,140 r/min. Determine the number of poles (forminimum slip), the slip, and the frequency of therotor currents.b. To reduce the starting current, a three-phasesquirrel cage induction motor is started byreducing the line voltage to Vs/2. By what factorare the starting torque and the starting currentreduced?
A 3300-V, 50-Hz, 3-phase, 4-pole, star-connected induction motor has identical primary and referred secondary impedances of value 3 + j9 ohm per phase. The turns-ratio per phase is 3/I (stator/rotor), and the rotor winding is connected in delta and brought out to slip rings. Calculate: the full-load torque at rated slip of 5%; the maximum torque at normal voltage and frequency; the supply voltage reduction which can be withstood without the motor stalling; the maximum torque if the supply voltage and frequency both fall to half normal value; the increase in rotor-circuit resistance which, at normal voltage and frequency, will permit maximum torque to be developed at starting. Express this: as a fraction of normal R2and as (3) ohmic values to be placed in series with each of the slip-ring terminals and star connected.
The full load slip of a 4-pole, 60Hz, 440V (line-to-line) three phase induction motor is 0.05. (i). What is the speed of the rotating stating? What is the frequency (in Hz) of the rotor current? (ii). When the output power of the motor is 90 hp at a speed of 1732 rmp, rotational losses (which include frictional and core losses) are 10,100W, while copper losses for both the rotor and stator total 3700W. Determine the motor efficiency and line current, assuming the motor has a 0.8pf lagging under the conditions.
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