MAKELSAN Challenger Series - Page 47

CHALLENGERSERIES10‐60KVA  INSTALLATION
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AG–SD‐35Rev.No:1Rev.Date:25.09.2013PublicationNo:2 48
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InputsandoutputsofmorethanoneUPSareconnectedtoeachother;butdefinitelyeach
batterygroupisdifferentfromanother,batteriescannotbeusedincommon.Thefollowing
pointsshouldbeconsideredwhileplacementofUPSinparallelsystemandtheirelectrical
connectionsaremade:
 UPSs connected in parallel must have the same power rating and must be the same
series.
 Devicesmustberunningonthesamefirmware,ifnot,oldfirmwaresmustbeupdated.
 Devicesmustbelocatedascloseaspossibletoeachother(max.6x110cmparalleling
cables.)
 Eachdevicemusthaveitsownneutralcable.
 Eachdevicemusthaveitsowngroundconnection.
 UPS must be connected in paralel on the distribution panel and phases must be
connectedcorrectly.(U
1
‐U
2
‐…‐U
N
),(V
1
‐V
2
‐…‐V
N
),(W
1
‐W
2
‐…‐W
N
).
 EachUPSmusthavetheirownbatteryset,batteriescannotbeusedformorethanone
deviceatthesametime.
 Thelengthofallcableswhichareconnectedtodistributionpanelmustbethesamefor
theequalcurrentsharing.
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