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

Determine the lateral shift-sketch the beams, Transmission Through a LiNb0 ...

Transmission Through a LiNb0 3 Plate Examine the transmission of an unpolarized He-Ne laser beam (λ o = 633 nm) normally incident on a LiNb0 3 plate (ne = 2.29, no = 2.20) of th

example of alteration of position and reference line method, Example of Al...

Example of Alteration of Position and Reference Line Method: Sketch the projections of a pentagonal prism edge of the base 50 millimeter long and height 90 millimeter, the axi

Construct a plain scale, Construct a plain scale: The distance between...

Construct a plain scale: The distance between Indore and Bhopal is 180 kilometer. It is represented on the map via 9 centimeter. Construct a plain scale for such map, illustra

Explain degree of freedom - jig and fixture, Explain Degree of Freedom - Ji...

Explain Degree of Freedom - Jig and Fixture The complete location of components inside a jig or fixtures can be understood with the help of figure. The work piece is a

Industrial jobs, i wanna know is production job is best or marketing after ...

i wanna know is production job is best or marketing after doing btech

Pulsed dc welding, Pulsed DC Welding Pulsed DC involves the repetitive ...

Pulsed DC Welding Pulsed DC involves the repetitive variation in arc current from a background (low) value to a peak value. Adjustments of the pulse current time, background cu

Plate clutch pressure height-clutch slipping, Plate clutch pressure height ...

Plate clutch pressure height : Check plate clutch pressure leg height by placing the plate clutch pressure on the surface plate. Plate clutch pressure should not tilt on the surfa

Spot welding of different metals-copper, Spot welding of different metals-C...

Spot welding of different metals-Copper Resistance welding copper is perhaps the most difficult case owing to the high electrical and thermal conductivities of copper. If is no

Point of inflexion, Point of inflexion: Define the term point of cont...

Point of inflexion: Define the term point of contraflexure or point of inflexion. Also define point of zero shear force?  Sol.: The points (other than extreme ends of beam)

Three forces act on particle - mechanics, Three forces act on particle: ...

Three forces act on particle: Thr ee forces act on particle ' O ' as shown in the figure given below. Determine the value of ' P ' such that resultant of these three 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