We are using Powerica make 100 KVA DG set. Whenever i
connect compressor on DG load (Compressor Make Atlas Copco
5.5 kva) that time we face the lot of fluctuation on Dg
output. Can you please suggest me how can prevent this
fluctuation?
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Answer Posted / 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
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