KACO blueplanet 750 - 1000 kVA - Manual (Page 30)

Page 30 KACO blueplanet 1000/875/750 TL3 M1 IS OD DEX0
Storage/Installation/Start-up
Figure 20: AC connection
5.5.3 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.
› 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 UL1741, NEC standard and 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 21: Arrangement of AC cables with 4-cable-per-line conductor (example)