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 (3070)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3286)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13319)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2362)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (414)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (79)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (163)
 Instrumentation interview questions  Instrumentation Interview Questions (2374)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (106)
 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 (75)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1195)
Question
In case of 3Phase Supply, 
   Voltage R-Earth/Neutral  -  220
           Y-Earth/Neutral  -  220
           Z-Earth/Neutral  -  220
   Total is ->   660Volts

Then Why it is said that 3Phase supply is 440
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
this voltage measure in R-Y 440v Y-B 440v RB-440 v so this
said that 3 phase R-Y-B supply is 440 v
 
Is This Answer Correct ?    14 Yes 3 No
Sachin Mahangade
 
Answer
# 2
we are calculating in phase to pase oly , so r-y, y-b, b-r
is 440 volt
 
Is This Answer Correct ?    12 Yes 2 No
Jmdt
 
 
 
Answer
# 3
in three phase supply there are three phases (here R, y,
and z) and only one neutral.
the voltage between any one phase and neutral is 220.
and the voltage between remaining two phases is 440.hence
the 3 phase supply is 440
 
Is This Answer Correct ?    3 Yes 1 No
Zubair
 
Answer
# 4
If we measure R-Earth/ Neutral that is 1 PH. 3 Phase, 440V
means we have to measure Phase - Phase i.e. R-Y, Y-B, R-B
 
Is This Answer Correct ?    2 Yes 4 No
Padmavathi
 
Answer
# 5
the vole meter have 2 terminals only.... then how can we
mesure in 3 phase voltage... only chance mesure in 2 phases
only the 2 phase voltage 440
 
Is This Answer Correct ?    2 Yes 4 No
Vinoth
 
Answer
# 6
220 Multiply by root three is equal to 281.4 volts. for 440
volts single phase voltage up to 254 volts.
 
Is This Answer Correct ?    1 Yes 6 No
N
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
how the fan is switched off immediately switching off the switch?   2
What is the importance of quality factor in resonance?   3
what need of NGR(neutral grounding registor)? What it works?   1
what is the reason for harmonics introduceed in the line   1
I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.   2
A 100 MVA transformer may be cooled with? HCL 6
why slipring motor , at full speed run as squirrel cage motor?   1
What is an infinite bus bar?   30
how do we know the LT or HT panel trip by some broblem which indication willshow TATA 2
about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? NTPC 2
tell me any book for current n potential trasformer with full knowledge ?   1
ALONG WITH MEGGER TEST FOR CHECKING OF MOTOR ,WHY WE MEASURE FOR RESISTANCE AND INDUCTANCE? L&T 4
 
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