Answer / prajeshkumarbe@yahoo.com

hai to all..,
this is the wonderful question, powerica DG is another
company of Caterpillar .atlas copco also best compressor
designer.
ur Dg is 100KVA , load is 5.5KW (its not a 5.5kva) that
means 7.5 hp,
while getting the fluctuation note it below.,
1.whether fluctuation is comes while starts r stops(loading/
unloading)
2.fluctuation time wt is the pressure (if compressor
reaches maximum working pressure it will takes more current)
3.normally it will be enough DOL Stater ,if its take more
current while start /stop,just u make the Star Delta
stater , surly will get best result.
4.check the DG fuel filter condition ,if its ran above 300
running hrs replace newly
5.DG should be run 80% load max ,
6. give the DG load only compressor itself and measure the
performance
7.ensure the compressor max pressure switch properly working
8.in DG AVR (Automatic voltage regulator) system may failure
9.check the self exciting system rectifier diodes
thanking u all
Rajesh

Answer / rajesh

Dear sir,
5.5kva Around (5kw) Capacity is very low
capacity compared to your generator you just calculate
other power usages And load .

If u feel compressor is a only problem you can minimize
other load and start the compressor for testing you can get
conclusion for this issue

Answer / n. gopala krishna

what type of dg u r using . brushless or brush type if
brush type please check brushes if brushless type check
exitation voltage or some where loose connections in
execitation side

Answer / elango

the starting current is the only problem which produce a
dip in supply voltage .so higher capacity load must be
started first and next lower loads...

Answer / deepak

you have to use softstarter for this problem.

Answer / rajju

Kindly check the other loads that u r connected because
there may max demand problem

wd do u understand by stablity of ps?

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