why the three phase transformer's star point does not
sparks or seperated? while we often see that two phases
touches each other it sparks and ocationaly conductor
breakes out.

Answers were Sorted based on User's Feedback



why the three phase transformer's star point does not sparks or seperated? while we often see..

Answer / nagaraju

Hi,
Three Phase star connected or delta connected windings are
divided with phase angle i.e 360/3=120. So in A.C the phase
sequence is changing alternatively. But any time if you do
the Vector sum of the three componenets Result is zero. If
not spark will occur in that situation....

Is This Answer Correct ?    4 Yes 0 No

why the three phase transformer's star point does not sparks or seperated? while we often see..

Answer / kundan

at a time when all three phase are live,they have pik valyu
is +x,-x and 0. that mean if r is +50 that time b is -50
and y is 0, all calculation is =50-50+0=0. so total
voltage is 0 v.
if this is not real ans pls send me accual fact.

Is This Answer Correct ?    1 Yes 1 No

why the three phase transformer's star point does not sparks or seperated? while we often see..

Answer / dhaval

nagaraju your ans is ok but if there is a phase dif and not
short ckt in transformer point so why we can not transform
all phase by bunching that is also is transformer out put..

Is This Answer Correct ?    0 Yes 0 No

why the three phase transformer's star point does not sparks or seperated? while we often see..

Answer / manojkrishnan

explain which side of the transformer - ( primary or
secondary )?

Is This Answer Correct ?    0 Yes 6 No

Post New Answer

More Electrical Engineering Interview Questions

how we can measure the dc current instead of clamp meter ?

1 Answers  


How to caluculate number of batteries to connect a three phase ups by KVA?

1 Answers  


when turbine trips generator will becomes induction motor or synchronous motor?

4 Answers   JSW,


why voltage rating of transformers are in multiples of 1.1?

3 Answers  


effect of single phase transformer on full load current?

2 Answers  






Why transformer neutral earthing? What is advantages?

6 Answers  


I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

0 Answers   RRB,


present we are having 0.8pf but I want increase it up to 0.99 so what is the formula for it and how can i calculate?

3 Answers   ABB,


why buchholz relay is kept on inclined position and why it is cover??

1 Answers   GSECL,


What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

0 Answers  


I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

0 Answers  


how to make a solar panel? why solar panel cell connected to serious?

1 Answers  


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • 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)