Answer / santosh kawade

Transformer neutral in distribution transformer is earthed
because:
1) Keep neutral at zero potential,
2) keep all three phase voltage balance even if load is
unbalance,
3) to provide return path for current in case of earth
fault condition,

Santosh Kawade
9224 69 3116

Answer / kalinath

as we all know that the distibution transformer has an
different loads on each phase even though we are try to
balance them there is no such an ideal case that each
transformer is ideally loaded....
in this scenario as the output of the transformer is star
connected there is a possibility to have a nutral current
in it if we not connect it to the ground then there is a
possibility to flow reverse current in the neutral which is
a very much problem...

i think this is the reason.....

Answer / samo

grounding or earthing offers two principal advantages:
1- it provides protection to the power system.
2- earthing of electrical equipment ensures the safety of the persons handling the equipment.

Answer / mrudang

neutral is grounded in transformer

1) is for REF (resricted earth fault protection)
2) to eliminate the archinng ground fault

Answer / gunasekaran

we have to keep the neutral at zero potential and we can get 3phase four wire system, normally in home appliances we r using single phase system.at earth fault condition without neutral another 2 phase getting full line voltage if it is earthed it will build only 80% line voltage will appear

Answer / harvey petroh

Harvey P
1-to balance the three phase voltage.
2-to incorporate the operation of ELCB
3-to come up the neutral wth zero potential

Why (In India) we preferably go for +-30 deg connection of transformer? what are the advantages in this connection?

2 Answers  

WHY IS THE POWER FACTOR NOT MORE THAN UNITY.

6 Answers  

Why is water motor not taking the pressure? what is the problem?

0 Answers  

How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.

0 Answers   ABB,

how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

0 Answers   SRES,

what is the burden?accuracy?Knee point voltage? what is the Alternator of PGM?

0 Answers   L&T,

My load is 15 kw,i want to improve power factor from 0.8 to 0.9,how select capacitor

2 Answers   RIB Software, TATA,

WHY WE ARE DOING THE EARTHING IN A SYSTEM. SOME PEOPLE ARE TELLING FOR PROTECTION. WHAT PROTECTION GIVE ME THE CORRECT ANSWER.

2 Answers  

What are the advantages of D.O.L Starter in 3 phase induction motor?

4 Answers  

Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?

0 Answers  

What is synchro?

0 Answers  

can mini-curcuit supply MIL-tested transformer !

0 Answers