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
Necessity of Battery To obtain power for ignition system. To obtain power for lighting. To obtain power for horn. To obtain power for self-starting.

Throttle Valve: The throttle valves control the quantity of mixture supplied to the cylinder. This is controlled by throttle grip with the help of a cable. When we open throttle

INTRODUCTION: Automobile service and maintenance is a very important function in the automobile industry for achieving highest level of customer satisfaction. Earlier it was confi

Wet saturated steam -  thermodynamics: we t saturated steam Wet steam is a 2-phase mixture comprising of boiling water particles and dry steam in equilibrium state. Its for

What are objectives of the footings? Objectives of the footings: After studying this unit, you should be able to: a. Know different types of footings and the situation wh

calculate the vertical reaction at A in Newtons

Hello to whom it may concern. I am currently having much trouble with a physics problem. I have an inverted L beam lying on a table. At the end of the flat piece laying on the t

How would you say environmental studies are multidisciplinary nature?

(a) Illustrate self-locking and self-energizing brakes. (b) The diameter of the drum is 250mm and the angle of contact is 90 o , If the operating force of 700 N is applied at th

a) Why cutting fluids are used for machining of metals? List different types of cutting fluids and additives for cutting  fluids. b) What factors are responsible for surface fin