Calculate the mechanical output power, Mechanical Engineering

Assignment Help:

A 415 V, 5 kW, 50 Hz, 4-pole, 3-phase wound-rotor induction motor has the following characteristics: 

  1. Stator winding resistance R1 = 2.1 Ω,
  2. Referred rotor winding resistance R'2 = 1.8 Ω,
  3. Stator leakage reactance X1 = 2.25 Ω.
  4. Referred rotor leakage reactance X'2 = 2.25 Ω.

The magnetising current, core losses and rotating losses can be neglected for this question.   

The motor is started direct on-line from a 415 V 50 Hz three phase supply. 

(a)  Calculate the starting current.

(b)  Calculate the starting torque.

(c)  Discuss how the starting current could be limited for this wound-rotor motor. 

(d)  If the motor is running at a speed of 1450 rpm, calculate the mechanical output power.


Related Discussions:- Calculate the mechanical output power

Governors, friction characteristics

friction characteristics

Find the diameter of drawn tubing , Find the diameter of drawn tubing ...

Find the diameter of drawn tubing (e = 0.0015 mm) to transport 0.002 m 3 /s of 20 o C water over 400 m length so that the head loss does not exceed 30m by using (

Tyres of motorcycle, Tyre: Different bikes respond differently to differen...

Tyre: Different bikes respond differently to different tyres, so it is impossible to make a generic recommendation. It mainly consists of outer cover and inside tube. The tyre tub

Thermodynamic, what is the difference between intrinsic and extrinsic proce...

what is the difference between intrinsic and extrinsic process?

Polymer, classification of polymers

classification of polymers

Jominy test, Jominy Test: Additionally convenient laboratory test for ...

Jominy Test: Additionally convenient laboratory test for harden-ability is Jominy test. A standard test piece of steel as illustrated in figure of The Jominy Test of Harden-ab

Mchanical vibration, the base of a spring -mass- damper system is subjected...

the base of a spring -mass- damper system is subjected to the periodic displacement. determine the response of the mass using the principle of superposition

Find maximum torque which can be transmitted by belt drive, Find maximum to...

Find maximum torque which can be transmitted by belt drive: A belt is stretched over the two identical pulleys having diameter D meter. The initial tension in belt throughout

Engineering dynamics, engineering dynamics problems of kinetics of particle...

engineering dynamics problems of kinetics of particle

Mechanics, assumptions made in parallelogram law of forces

assumptions made in parallelogram law of forces

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd