Calculate the Induction Motor Efficiency, Mechanical Engineering

A three phase squirrel cage induction motor has the nameplate data shown in Table I below

332_Calculate the Induction Motor Efficiency.png

 Table I : Induction Motor Nameplate Data.

a)  Calculate the induction motor efficiency for the load test.

b)  It is required to supply the same torque at a speed of 1200rpm. Approximately, determine the supply voltage and frequency required to achieve this speed and torque condition.

[Hint: Neglect the effects on the induction motor variable speed torque response due to R1 and the mechanical losses.]

c)  Explain why the supply frequency must change from 50Hz in order to achieve the loading condition.

 

 

 

Posted Date: 2/18/2013 3:04:23 AM | Location : United States







Related Discussions:- Calculate the Induction Motor Efficiency, Assignment Help, Ask Question on Calculate the Induction Motor Efficiency, Get Answer, Expert's Help, Calculate the Induction Motor Efficiency Discussions

Write discussion on Calculate the Induction Motor Efficiency
Your posts are moderated
Related Questions
Degre e of Super Heat: It is difference between the temperature of superheated steam and saturation temperature resultant to the given pressure. So, the degree of superhea

Determine the increase in pressure in vessel: A thin spherical vessel of diameter 750 mm & wall thickness 8 mm is filled through water at atmospheric pressure. Determine the i

Explain Newton's Law of cooling. What do you mean by convective Heat Transfer coefficient ? What are the factors on which co-efficient of convective heat transfer (h) depends upon

what is the practical application of worm and worm gear

Q. Space for coil removal? Locations, of all coils clearly indicated on the drawings. Provide adequate space for coil removal, and access doors on both sides. Flexible connecti


actual division 2km is shown as 1 cm in a map.construct a clean scale to measure km which can travel a distance upto 30 km.Show measurement of 18 km in the scale

Differentiate between porosity & blowholes in welding

Problem - Newton's Second Law in 1D Newton's Second Law of Motion says that the vector sum of the forces acting on an object equals the object's mass times its acceleration.  Ma

example with its properties