ZuoTi.Pro
Question

A 3300-V, 50-Hz, Y - connected, ten-pole induction machine has a magnetising resistance 250, magnetising reactance 40 per pha

I would be glad if you can do my work in a clear way

engineering   Electrical-Engineering   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

from given data, line voltage V =3300 V frequency f= 50 Hz no. of Poles P=10 star connected induction machine magnetising resstator current IF Noload t Secondary current coorent sef to primary II = Total Ig: Vph (RitgeJej(x+y) Uph = VL - 3300 =1905-Ils -148 Mognitude of I= 198.15 Amp phase angle of 054448 power factor = cos $ =COS(-148 20.84 dag Por mue qz vit ( 8 ) (Ceut6 from given data, herefore Torque is positive 2ile phases are reversed, then direction of speed reversed. ( slip is tue S-00111* 204.36€ 06-29-610° PF cos 6 =0.869° Torque Taver cck ( 83) 2TX NS [central)? (x1+421)2 60 = 190625 (0.4 oou 27*X120X50

0 0
Add a comment
Know the answer?
Add Answer to:
I would be glad if you can do my work in a clear way A 3300-V,...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • please provide full solution for 3b and 3c ii） 3b) Induction Machine Analysis (9 marks ]...

    please provide full solution for 3b and 3c ii） 3b) Induction Machine Analysis (9 marks ] A 415 V, 50 Hz, 1420 rpm, three-phase, star-connected induction machine has the following equivalent-circuit parameters (referred to the stator winding where appropriate): stator resistance R -0.52, rotor resistance R'-0.622 stator leakage reactance X1 = 1.2.2, rotor leakage reactance X' = 1.30 magnetising reactance XM-802, core loss resistance Re - 2400 In your calculations you should use the simplified equivalent circuit. i) The machine...

  • Electrical Machine

    Question (1)Explain with relevant diagrams, resistance commutation and how it helps in improving commutation. Question (4)A 240 V, 4 – pole shunt motor running at 1000 r.p.m. gives 15 h.p. with an armature current of 50 A and fieldcurrent of 1 A. The armature winding is wave connected and has 540 conductors. The armature resistance is 0.1Ω and the drop at each brush is 1 V. Calculate (i) the useful torque (ii) the total torque (iii) useful flux per poleand (iv)...

  • Electrical DC Machines

    Question (1)Explain with relevant diagrams, resistance commutation and how it helps in improving commutation. Question (4)A 240 V, 4 – pole shunt motor running at 1000 r.p.m. gives 15 h.p. with an armature current of 50 A and field current of 1 A. The armature winding is wave connected and has 540 conductors. The armature resistance is 0.1 Ω and the drop at each brush is 1 V. Calculate (i) the useful torque (ii) the total torque (iii) useful flux per pole and (iv)...

  • 5 Marks) A 4-pole, 3 phase, 50 Hz, 230 V induction motor. Each phase of rotor winding b) has one-fourth the number of t...

    5 Marks) A 4-pole, 3 phase, 50 Hz, 230 V induction motor. Each phase of rotor winding b) has one-fourth the number of turns of each stator. The full-load speed is 1,455 rpm. The rotor resistance is 0.3 Ω and rotor standstill reactance is 1.0 Ω per phase. The rotor and stator windings are similar. Stator losses are equal to 50 Watts. Friction and windage losses are equal to 30 W. Calculate ) Blocked rotor voltage per phase. 2 Marks)...

  • Name: 23. A 3-phase, 5000 hp, 6000 v,60 Hz, 12-pole wound-rotor induction motor has the 1, resistance between stator terminals-o12 Ω 2. resistance between rotor slip-rings-0.0073 Ω 3. windage and...

    Name: 23. A 3-phase, 5000 hp, 6000 v,60 Hz, 12-pole wound-rotor induction motor has the 1, resistance between stator terminals-o12 Ω 2. resistance between rotor slip-rings-0.0073 Ω 3. windage and friction losses-51 kW following characteristics 4. iron losses in the stator-39 kW 5. locked rotor current at 6000 V-1800 A 6. active power to the stator with rotor locked 2207 kw Calculate under full-load voltage locked-rotor conditions a. Reactive power absorbed by the motor b. FR losses in the stator...

  • 4. A three-phase induction motor has the following data: Nominal power, P 7.5 kW Nominal voltage, = 400 V Connection: Y Nominal frequency, f-50 Hz Nominal speed, nn 960 rpm Stator resistance, r,...

    4. A three-phase induction motor has the following data: Nominal power, P 7.5 kW Nominal voltage, = 400 V Connection: Y Nominal frequency, f-50 Hz Nominal speed, nn 960 rpm Stator resistance, r, 0.55 Ω Rotor resistance referred to a stator winding phase: r:-0.51 Ω Stator leakage inductance, L,-4.4 mH Rotor leakage inductance referred to a stator winding phase,1'-4.4 mH Magnetising inductance L-65 mH How many pole pairs has the motor? 12] a. Calculate the nominal power factor of the...

  • A 480 V, 60 Hz, 4-pole-pair, three-phase, delta-connected induction motor has the following parameters: R1=0.42 Ω,...

    A 480 V, 60 Hz, 4-pole-pair, three-phase, delta-connected induction motor has the following parameters: R1=0.42 Ω, R2=0.23 Ω, X1=0.48 Ω, X2=0.29 Ω, Xm=29.71 Ω where: R1 is the stator resistance             R2 is the rotor resistance reflected in the stator;             X1 is the stator leakage inductance;             X2 is the rotor leakage inductance reflected in the stator;             Xm is the magnetising inductance; The rotational losses are 2450 W. The motor drives a mechanical load at a speed of...

  • A 3-phase, 460 V, 1740 rpm, 60 Hz, 4-pole wound-rotor induction motor has the following parameters...

    A 3-phase, 460 V, 1740 rpm, 60 Hz, 4-pole wound-rotor induction motor has the following parameters per phase: R1 = 0.25 Ω, ' 2R = 0.2Ω, ' 1 2 X = X = 0.5Ω, 30 m X = Ω. The rotational losses are 1700 W. With the rotor terminals short-circuited, find: 1. at starting: • current when started direct on full voltage, • a torque 2. at full load: • slip • current • ratio of starting current to full-load...

  • 4.6. A 460-V, 75 kW, 4-pole, delta-connected, 60-Hz, three- phase induction motor has a full-load slip of 5 percent, an efficiency of 92 percent and a power-factor of 0.87 lagging at full-load. At st...

    4.6. A 460-V, 75 kW, 4-pole, delta-connected, 60-Hz, three- phase induction motor has a full-load slip of 5 percent, an efficiency of 92 percent and a power-factor of 0.87 lagging at full-load. At start-up, the motor develops 1.9 times the full load developed torque but draws 7.5 times the rated current at the rated voltage. This motor is to be started with an auto- transformer reduced-voltage starter. Assume the stator resistance and the stator core loss to be negligible. Calculate...

  • 3) A four pole 75 HP 50 Hz induction motor with an efficiency of 93.4% has...

    3) A four pole 75 HP 50 Hz induction motor with an efficiency of 93.4% has equivalent resistance and equivalent reactance per phase of 0.3000and 0.78 000OTHE blocked rotor voltage per phase is 175V. If the rotor is turning at 1425 rpm, determine synchronous speed, slip, rotor impedance, rotor current, total three phase apparent power crossing the air gap, its active and reactive components, rotor power factor, shaft speed, mechanical power developed and developed torque. (30 Points)

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT