a distribution transformer(3 phase)supplying 440volt per
phase.now suppose one of phase voltage(230volt) becomes
zero.what will be the cause ?

Answer Posted / ambai algates

if 1 phase open the unbalance current is flow through
neutral , so its exit the setting bkr trip .if there no
load you got 230v only in phase to open phase

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

I am experienced with house and industrial wiring but I don't have any licence how can I apply an licence and which type of licence i can get i didn't complete deee just only experience

1316


HOW DOES THE ELECTRONIC ENERGY METER WORKS?

1712


As an electrical engineer what are the responsibilities which i can hold in TCS?

1808


hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

1805


What are the main advantages of bode plot?

790






what is the pre charge circuit,what will be work which function it will be use plz tell me

1570


what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?

1751


WHY BREAKER ARE USED IN SUBSTATIONS?

1827


Mention the disadvantages of low power factor?

770


1.how many types of relays? 2.difference between ATS& STS?

1749


how to calculate the no load current in transformer?

2078


what are inductive and capacitive voltage transformers.what are their applications

1588


HOW TO WRITE A QUENTION ANSWER? I MEAN SHORT OR LENGHTHY ? OR FROM THE BOOK AS BOOK..... SOME TIME WE GIVE A ANS FROM THE BOOK AS LIKE BOOK ND WE GET MINIMUM 60% MARKS OR MORE THEN....... THEN HOW TO FILL THE Q-PAPER?

1642


What is the difference between a 3 winding and 2 winding Potential Transformer

1937


How many types of faults are there in 3 phase power system?

728