Calculate the Induction Motor Efficiency, Mechanical Engineering

Assignment Help:

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.

 

 

 


Related Discussions:- Calculate the Induction Motor Efficiency

Can you explain shell molds, Q. can you explain Shell molds? These mold...

Q. can you explain Shell molds? These molds are prepared by pouring a mixture of sand and thermosetting resin over the heated surface of a metallic pattern, which results into

Compute the maximum bending moment, Compute the maximum bending moment: ...

Compute the maximum bending moment: A simply supported beam of 7 m length carries point loads 2 kN, 4 kN and 6 kN at distances of 1 m, 2 m & 4 m from the fixed end respectivel

Turnning fixtures, What are the forces coming on workpiece during turning a...

What are the forces coming on workpiece during turning and how workpiece should be clamp?

Compressors, How can I construct a tyre pumping machine.

How can I construct a tyre pumping machine.

Strength of materials, The figure shows a particular point of the connectin...

The figure shows a particular point of the connecting rod BA and crank AO. At this position the rod the engine exacts a force 2500N on the crank oin at A. Resolve this force into h

Standard factory formed insulation on flanges and valves, Q. Standard facto...

Q. Standard factory formed insulation on Flanges and Valves? All fittings are to be insulated with standard factory formed insulation. All joints shall be buttered and sealed.

Determine the permissible shear stress, A helical compression spring is use...

A helical compression spring is used to take the shock. The initial compression of the spring is 30 mm and it is further compressed by 50 mm while absorbing the shock. The spring i

What are the reasons behind poor pick-up of motor cycle, (a) Why does engin...

(a) Why does engine overheat and what will happen if engine overheats? (b) Why engine does not start in wet or damp weather? (c) What may be the causes if engine dose not sta

Resistant body-mechanism-curvilinear motion-machine, Resistant Body: A bo...

Resistant Body: A body is called resistant body if this is capable of transmitting the needed forces with negligible deformation. Machine: A machine is a mechanism or a se

Force system, Force system: Defin e Non concurrent force system. Why...

Force system: Defin e Non concurrent force system. Why we find the position of Resultant in Non concurrent force system? Sol.: In Equilibrium of concurrent force syste

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