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 (3131)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3300)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13444)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2386)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (420)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (80)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (165)
 Instrumentation interview questions  Instrumentation Interview Questions (2402)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (107)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (45)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (80)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1203)
Question
How CT & PT ratings are decided for a 11KV or 33KV
transmission line?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
CT PT ratings are decided on
1. Class : Protection, metering (for CT)
2. Burden: The load of relays, cabling, etc.
3. Fault level: The thermal capacity of CT for bearing the
fault current for required time 1 sec, 3 sec etc.
4. The voltage level of the system
 
Is This Answer Correct ?    12 Yes 1 No
Balasubramanian
 
Answer
# 2
ct decied as per metering OR protection ct Use ct as per
metering that we can use the metering instrument of panel
OR control room 1A OR 5A
 
Is This Answer Correct ?    10 Yes 4 No
Pradeep Kumar
 
 
 
Answer
# 3
In CT

CT primary rating will be decided by its load current &
secondary will depend up on purpose of of selection (either
metering or protection )

In PT

It will always depend upon its system rating & in secondary
the class will be depend upon its purpose of its
utilization as same as in the CT secodary. but the voltage
level is always 110V in secondary of transformer.
 
Is This Answer Correct ?    2 Yes 2 No
D.durga Prasad
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
A resistance, inductance & capacitance are connected in series between points A & B.The voltage drops across the resistance,inductance&capacitance are found to be 40V,70V&100V respectively. What is the total voltage between between points A&B (Vab)? a)210V b)70V c)50V d)230V   6
what is the difference between bus-coupler and bus-riser   2
how the direction relay sense rhe directional fault?it's forward or reverse?   2
what is the effect of power factor to (a) voltage (b) transformers (c) generators (d)transmission lines   4
Waht are the protection should be use in HT/ LT side of the same Xformer?   1
Where the excitation is given either stator or rotor in actually in power plants?   12
Pure inductive ckt takes power from AC when 1. Applied voltage and Current increases 2. applied voltage and current decreses 3. voltage decreases and current decreases please justify   2
Where is the center of magnetic field in alternator Siemens 1
How to size the Neutral grounding resistor?   1
If I fill the form of engineering services and I left the exam de to navoidable reasons . Will it counts my one attempt   2
what is the power factor of choke coil used in tubelight Bajaj 11
Can the same motor be operated in both direction ?   12
 
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