after parallaing two generators current is shooting up in both the generators.

after parallaing two generators current is shooting up in
both the generators.for ex: load is 400 kw..after paralling
and load sharing current in running gen is approx 900 amps
and incoming is 750 amps which is too high when trying
toshift the load current in incoming gen is coming more
than 1300 amps and both getting tripped and making
blackout..

Question Posted / jitsatyabrata

3 Answers
5646 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

after parallaing two generators current is shooting up in both the generators.for ex: load is 400 ..

Answer / raj

Is both generator parallel to GRID means Your generator
AVR is not working properly, these requrired kvar sharing
must is there available or not If availabel AVR settings to
shoule be change then is not solved the problem it is
required winding test required.

Is This Answer Correct ?

1 Yes

0 No

after parallaing two generators current is shooting up in both the generators.for ex: load is 400 ..

Answer / pillay

it looks like one of the genset is having a big difference in voltage or
the droop kit if fitted something wrong with it or
check after paralling do you have balanced three phase voltage and current or one of the phase is open circuit or
the gen is running the other as motor
if you know the actual reasons later please let us know also

Is This Answer Correct ?

1 Yes

0 No

after parallaing two generators current is shooting up in both the generators.for ex: load is 400 ..

Answer / yuvi

This means that the phase angle of the existing generator
and the new incomming generator are not matching. You can
try the bright lamp or the dark lamp method to synk them.
There is no way in which you can directly plug in a
alternator to an active AC system.

Is This Answer Correct ?

1 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.

4 Answers

why we use iron corn in transformer instead of wooden core

12 Answers

why nutral and earthing wire connect with each other in main panel board.?

2 Answers

Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.