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
5484 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

how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers

What is the meaning of capacity of a 63 Amps TPN MCB? Is it the per phase capacity or the totol capacity?

1 Answers Mother Dairy,

what is the difference between bus-coupler and bus-riser

2 Answers

Draw a SLD for main panel for school having connected load of 1200kw and emergency generator 200kw.also show the increase of additional load of chiller 225kw in the lv panel indicating meter postion size of transformer ,cables and capacitor bank.

0 Answers

what type of questions are asked and howmwny questions belong this catagory?

0 Answers RRB,

1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)

0 Answers Bhel,

Determine the BTU size of an aircon for 20 sq metre room

0 Answers

What is the function of an exciter in a generator?

3 Answers

why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

0 Answers ISRO,

why the the electrical machine coil are damage ? How to prevent it?

2 Answers

Difference between mcband isolator

1 Answers

some ac motor's direction get change dueto ghanging input to the ac drives.(say ryb to rby). but some motor direction remains the same when phase sequence is changed fromdive side. can anybody guide me?

1 Answers

For more Electrical Engineering Interview Questions Click Here