Without seeing the nameplate descriptions of a rotating
machine,Is it possible to say which one is a motor and
which one is a generator?
How would you certain this?

Answers were Sorted based on User's Feedback



Without seeing the nameplate descriptions of a rotating machine,Is it possible to say which one is..

Answer / iamdon

Dear Amit,
Your statement is right except the last line.As long a
machine is in motoring mode it will only take electrical
energy as input not the mechanical enegry.

In the question asked, the intention was to find the
difference on a practical ground.We all are very much aware
of the difference on various techanical grounds but a
laymen would not understand the terms like stator,magnetic
field,armature etc.For them FULLY CLOSED and SEMI CLOSED
are quite easy to interprete.Hope now you agree.

Author:arbelectbit@yahoo.com

Is This Answer Correct ?    2 Yes 1 No

Without seeing the nameplate descriptions of a rotating machine,Is it possible to say which one is..

Answer / iamdon

Not in all cases but we can surely say in some cases.

Generators are always handled by persons having experience
in the field of electircal machines.It is generally established
at dust free places.So it MAY BE SEMI OPENED like structure.
(Remember the generators hired for Indian marriage ceremony.You
can able to see the rotating parts).

Motors are handled by persons from all walks of life and
established without concerning the dust level in the vicinity.
For running a motor,one need not require a knowledge of
electrical machines.Have you ever faced a situation when motor
seller asked you: Do you know about electrical machines? before
selling you a motor.So motor construction is ALWAYS FULLY
CLOSED to ensure safety and proper protection aganist dust
during its rugged operation.

We can distinguish between motor and generator on the
possibilities of ALWAYS FULLY CLOSED and MAY SEMI CLOSED
appearance respectively provided motor is not opened for
repair purposes and generated is not newely purchased.

Author:arbelectbit@yahoo.com

Is This Answer Correct ?    3 Yes 5 No

Without seeing the nameplate descriptions of a rotating machine,Is it possible to say which one is..

Answer / amit

Generator always need some source for its operation (such as
petrol or diesel), but motor takes only electrical energy or
mechanical power to run.

Is This Answer Correct ?    1 Yes 4 No

Post New Answer

More Electrical Engineering Interview Questions

During FEED, you will have all the information with regards to cable. How will you calculate the MTO for MV and LV Cables? what are your considerations?

0 Answers  


what is the use of providing earthing for tanks? i know for lightning we use earthing ? Here one of my ONGC project there is no need of lightning protection and there is no power connection near by tank in that situation also ONGC asking earthing for tanks but we didn't understanding why they asking earthing? is anybody tell exact answer?

4 Answers  


what is overflexing in transformer? setting?

1 Answers  


What is an isolation transformer?Why do we need isolate circuits?Where do we use them?

2 Answers  


How to calculat the ratio of HT\LT in energy meter

0 Answers  






What are the electrical engineer roles and responsibilities in chemical plant?

0 Answers  


A 100 MVA transformer may be cooled with?

6 Answers   HCL,


what is the differnce between high impedance relay and low impedance relay

4 Answers   Areva,


what is the different between Switch & Circuit Breaker?

9 Answers  


what are the types of cooling systems used in motors?

2 Answers  


How the current flows in dc circuit?

3 Answers  


pls,send the previous year written test questions.

0 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)