why the three phase transformer's star point does not sparks or seperated

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.

Question Posted / engr rb

4 Answers
8467 Views
I also Faced
E-Mail Answers

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

What is different bewteen low or high impedance busbar protection scheme

0 Answers

Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?

0 Answers IOCL,

In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????

1 Answers

Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.

2 Answers

what is skin effect and why is it absent in DC systems

4 Answers

in science exhibition how lamp can blink when you clap near the lamp ? thank you

0 Answers

what is the right cable size for 100 hp mpter.

3 Answers

Why dose an electric meter record KVA when there is no load on a 500 KVA transformer

1 Answers

Will a bulb glow if we connect it between the phase and earth instead of earthed neutral?

3 Answers

sir am giving jspl exam on 19th oct . i belong to eee, so plz send previous question papers ..........to dis id abhilash203@gmail.com

0 Answers

What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks

0 Answers

how encoder works?

1 Answers ITC Infotech,

For more Electrical Engineering Interview Questions Click Here