KACO Powador XP500-XP550-HV TL outdoor - Manual (Page 22)

Operating Instructions Powador XP500/550-OD-TL Page 23
S t o r a g e / I n s t a l l a t i o n / S t a r t - u p
5.4.3 Requirements for cable routing between transformer and inverter
(AC connection)
WARNING
Fire hazard due to overheating of cables
Differing cable lengths result in overheating of the cables.
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All line conductors from the inverter to the transformer must be of the same length.
The followings are requirements for avoiding current imbalances and cable overheating:
• The minimum size of conductor must be designed based on Table24 of IEC62109-1 2010.
• The AC cables must be bundled in a three-phase system (Required to use cables of the equal type, diameter
and length).
• Between the transformer and the inverter there must be four separate cable routes for the AC cables.
•
Lay one A, B and C line conductor in each cable route. Ensure that the distance between the cable bundles
at least doubles the cable diameter.
Figure 15: Arrangement of AC cables with 4-cable-per-line conductor (example)