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 (13442)
 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 (1204)
Question
why we are caling 440 volt 3 phase supply instead of 660 
volt 3 phase supply? because each phase as a voltage of 220 
volt. if anybody know the answer for my question please 
send it to my mail id. thank you.
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
It can be justified from the phasor diagram....the effective
value can be determine as sqroot(3)*v.
 
Is This Answer Correct ?    12 Yes 7 No
Vishnu Kumar
 
Answer
# 2
Because its a phasor sum not an arthimetic sum, all three
phases are displaced each other 120 degree apart, so we
have to add them taking consideration of this angle
 
Is This Answer Correct ?    18 Yes 20 No
Syed Qamar Abbas
 
 
 
Answer
# 3
The sum of any 2 phases is 440. This is a rough estimate as
several factors can play on the load side of the circuit.
Between any one wire (phase) and ground can be 207VAC to
277VAC (with no Load). It's that way because the electrons
said so . . . I talked to them last week.
 
Is This Answer Correct ?    4 Yes 15 No
Chuck Rogers
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
what's mean by Transient stability analysis?   1
How to design the blower for motor? how to two blowers connected in motor? Ashok-Leyland 1
What shocks us , Current or voltage?   21
why the single phse machine can not run by the three phase supply.   2
why not use capacitor in Dg sets. Birla 10
How many 2 ton window A/c can runs on a 125 KVA generator?   3
In Panels Main Incomer considered should be TPN or FP?   2
diffance between eletrical and eletronics?   3
what is the means of dedicate earthing?   2
what is the difference between concentrated winding and Distributed winding in motor? BSL 6
what is power factor   6
What is hysteresis loss? SPML 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