ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Engineering >> Electrical Engineering
 
 


 

 
 Civil Engineering interview questions  Civil Engineering Interview Questions (3011)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3270)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13221)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2348)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (407)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (76)
 Bio Engineering interview questions  Bio Engineering Interview Questions (16)
 Metallurgy interview questions  Metallurgy Interview Questions (79)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (162)
 Instrumentation interview questions  Instrumentation Interview Questions (2317)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (104)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (43)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (73)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1189)
Question
How the CT and PT ratings are calculated
 Question Submitted By :: Kudipudibhanuprakash
I also faced this Question!!     Rank Answer Posted By  
 
  Re: How the CT and PT ratings are calculated
Answer
# 1
Its Basically the requirement of the client.
ie. The client operationg load along with consideration for
future loads. This gives you the power, now for the Volatge
& current we have to do a bit survey regarding which
voltage level is available in the vicinity & the availibity
of the same from the electricity board. This gives us the
Volatge rating & current is now calculated.
Now we have to see what protection are required & depending
on that we select the no of cores in both The CTS & PTS.
 
Is This Answer Correct ?    5 Yes 9 No
Chandrasen Mourya
 
  Re: How the CT and PT ratings are calculated
Answer
# 2
depending up on the number of windings in primary and in
secondary winding,we can calculate the CT and PT rating of
the transformer.
N2/N1=V2/V1
 
Is This Answer Correct ?    7 Yes 6 No
Ravi
 
 
 
  Re: How the CT and PT ratings are calculated
Answer
# 3
OK BUT CAN GIVE SOME MORE DETAILS FOR ME 
Is This Answer Correct ?    1 Yes 0 No
Hanu1985
[MacLellan]
 
  Re: How the CT and PT ratings are calculated
Answer
# 4
OK BUT WE WANT MORE DETAILS WITH FORMULA ALSO 
Is This Answer Correct ?    0 Yes 1 No
Nagarajan
 
  Re: How the CT and PT ratings are calculated
Answer
# 5
First we should know whether CT /PT is used for measurement
purpose or for protection ,primary currentand voltage
After getting the above details ,we can decide the
specification of CT/PT like accuracy
class,ratio,burden,type etc
 
Is This Answer Correct ?    3 Yes 0 No
M U Shetty
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what is the use of Reactive power   2
HOW DO A DISTANCE RELAY SENSES THE FAULTY ZONE.   5
How feedback transformer works to feedback power in Slip Power Recovery System   2
why ht11kv supply needs discharging during shut down time   1
how the fan is switched off immediately switching off the switch?   2
why an ideal voltage source has low internal resistance????   1
what is phase and neutral. HP 12
why measure the gravity in battery?   2
wat do knw aboot circuit breakers ? IOCL 9
Why air gap in rotating machines should be small?   3
why substation ratings are multiple of 11 means 11\33 kv substation   6
Hi,My name is ranms i want to know the machine vibration related problems.post me if any body knows. 1) Possible causes of machine horizontal vibration high? 2) Possible causes of machine vertical vibration high? 3) Possible causes of machine axial vibration high?   1
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com