6RL SERIES OPERATION MANUAL
SECTION 4: TECHNICAL SPECIFICATIONS
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2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual
Page 46 of 204
The 15 kW models consume balanced current on all three phases. As long as only 15kW
models are installed, no unbalanced AC load is expected. Mixed systems with units of
different power ratings are not automatically balanced. Load balance can be achieved
however given a certain number of units by calculation based on phase currents per unit.
5.6.8
Connection Multiple Loads to one Grid
When connecting more than one unit to the same supply point, ideally models with the
same nominal power, it is recommended to take ensure balanced current distribution on
the phases. This can be achieved by considering the single phase current of the particular
models and by varying the supply phases you connect to the AC plug.
Because the table above states “use phases L2 and L3 to power a 3.1 kW model”, even
multiple units with this power rating would be intentionally connected to L2 and L3, while
not using L1. With the 6.2kW it is different, because the shared phases have a higher
current. A fully balanced current can be achieved when having three units or a multiple of 3,
while with an even number of units the current can be only distributed as good as possible
by connecting the units to different phases. See examples below.
Multiple units (3.1 kW)
Multiple units (6.2 kW)
Summary of Contents for 6RL Series
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