Sir
Power transformer :- (in generating station)
Alternator terminals side - Delta
HT transmission line side - Star
Why?

Answer Posted / kc

To reduce the fault level

The fault on primary side ie Y (LLG)
Will reflect as a LL Fault

So fault current level will b less
No zero sequence current ll b appar on d secondary side

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

1401


I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate

1157


why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

1536


What is a single phase autotransformer?

628


I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.

1335






Why 11kv to be generated in generation station

1246


If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

1604


can i use ups power as a raw power for another ups

1460


does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain

1395


Draw the circuit of clapp oscillator?

668


DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1429


Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

1541


Why does the speed regulating system adopting I controller have no steady-state error? In this single closed-loop speed regulating system, when the input of the I controller Un=0, what is the output voltage of the regulator? What factors do the output voltage depend on?

1411


along with technical test papers

1129


What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?

1397