HomeworkLib
Question

208 Volt, 10 HP, single pole number 4, 60 Hz, star-connected asynchronous motor, full load slip...

208 Volt, 10 HP, single pole number 4, 60 Hz, star-connected asynchronous motor, full load slip value is 5%. Calculate the following values. (1 HP = 736 W)
a-) Synchronous speed and nominal (Full load) rotor speed
b-) Rotor current frequency
c-) Full load shaft torque
d-) Full load stator current if full load power factor 0,9 and full load efficiency 0,85

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

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
208 Volt, 10 HP, single pole number 4, 60 Hz, star-connected asynchronous motor, full load slip...
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

  • 1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the ...

    1. A 15 hp, 4 pole, 208 V, 60 Hz, Y-connected, three-phase squirrel cage induction motor has the following parameters in Ω/phase referred to the stator: R,-0.220, Xi = 0.430, X,-15.0, R2 0.130 and X2-0.430. Mechanical and core losses amount to 300 W and 200 W respectively for rated voltage. (a) The motor is fed with a 60 Hz, 208 V voltage. It runs with a slip of 4.5 %. Find the speed, shaft torque and power, efficiency and power...

  • 5. A 208-V four-pole 60-Hz Y-connected wound-rotor induction motor is rated at 30 hp. Its equivalent...

    5. A 208-V four-pole 60-Hz Y-connected wound-rotor induction motor is rated at 30 hp. Its equivalent circuit components are R=0.100 Ry=0.070. X - 10.00 R = 250 X; -0.2100 X=0.21002 Praw=500 W P =0.5% of input at full load For a slip of 0.05, find (a) The line current (b) The induced voltage in the rotor (c) The stator power factor (d) The rotor power factor (e) The rotor frequency (f) The stator copper losses (g) The core loss (h)...

  • A 3-phase, 208 V, 60 Hz, 30 hp, four-pole induction motor

    A 3-phase, 208 V, 60 Hz, 30 hp, four-pole induction motor has the following equivalent circuit parameters. R1 = 0.2 Ω, , , Xm = 12Ω.The rotational loss is 500 W. For a slip of 5%, calculate (a) The motor speed in rpm and radians per sec (b) The current drawn by the motor from the power supply (c) The stator cu-loss (d) The air gap power (e) The rotor cu-loss (f) The shaft power (g)The developed torque and the shaft torque (h) The efficiency of the motor Use...

  • A 25-hp, 208-V, 60-Hz, two-pole, Y-connected induction motor operates at slip of 5% at rated conditions....

    A 25-hp, 208-V, 60-Hz, two-pole, Y-connected induction motor operates at slip of 5% at rated conditions. The motor parameters are given in ohms per phase as follows: ??=0.3 ??=0.4 ??=0.1 ??=0.4 ??=25.0 Assume core loss of 150 W and rotational loss of 225 W, Find Stator Current, Electromechanical torque, Power out, Efficiency, Power Factor and PowerFlow Diagram. Use the exact model circuit.

  • Asynchronous slip-ring motor with 50 Hz frequency, 380/220 V with full load values Pn = 50...

    Asynchronous slip-ring motor with 50 Hz frequency, 380/220 V with full load values Pn = 50 HP, nn = 987 rpm, per phase; - rotor circuit resistance 0.2 ohm, - the stationary reactance is 0.5 ohm, - the loadability coefficient is 2.1 and - the number of pole pairs is 8. a)Calculate the motor's full load torque, tipping torque and idle speed and number of revolutions under maximum load. b)To give the motor a maximum torque, calculate the resistance value...

  • 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...

  • A 208-V, six-pole, Y-connected, 25-hp design class B induction motor is tested in the laboratory, with...

    A 208-V, six-pole, Y-connected, 25-hp design class B induction motor is tested in the laboratory, with the following results: No load: 208 V, 24.0 A, 1400 W, 60 Hz Locked rotor: 24.6 V, 64.5 A. 2200 W, 15 Hz 13.5 V, 64 A de test: a) Find the parameters of the induction motor equivalent circuit. b) Calculate the stator current if the slip is 0.02.

  • Question 2 [10 marks) A six pole, three phase induction motor, with a star connected stator...

    Question 2 [10 marks) A six pole, three phase induction motor, with a star connected stator winding is energised from a 380V, 50Hz supply. The ratio of the stator to rotor turns is assumed 1.8 and a full load slip of 4%. If the respective per phase rotor resistance and standstill reactance are 0.120 and 0.8502, determine: a. Torque developed at full load b. The maximum torque and the speed at maximum torque

  • 4. A certain four-pole 240-V-rms 50-Hz delta-connected three-phase induction motor operates at slip 5% at full...

    4. A certain four-pole 240-V-rms 50-Hz delta-connected three-phase induction motor operates at slip 5% at full load and has rotational losses (windage + friction) of 100 W. The stator resistance per phase is 0.2 Ohm. The results of no-load and locked-rotor tests on this motor are as follows: No-load test Locked-rotor test Line-to-line input voltage: 240 V 45 V Input active power: 1100 W 1300 W Input line current: 10 A 30 A Using the tests data, determine parameters of...

  • Name: Student ID: A 208-V, six-pole, Y-connected, 25-hp design class B induction motor is tested in...

    Name: Student ID: A 208-V, six-pole, Y-connected, 25-hp design class B induction motor is tested in the laboratory, with the following results: No load: 208 V, 24.0 A, 1400 W, 60 Hz Locked rotor: 24.6 V, 64.5 A, 2200 W, 15 Hz dc test: 13.5 V, 64 A a) Find the parameters of the induction motor equivalent circuit. b) Calculate the stator current if the slip is 0.02.

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