Sungrow SC50HV - AC Cable Requirements

30
Grid-connected scene
If multiple PCSs are connected in parallel to the grid, ensure that the total
number of parallel PCSs does not exceed 25. Otherwise, please contact
SUNGROW for technical scheme.
The above requirements apply only to the case where other devices
(such as photovoltaic converters) are not connected in parallel. If
other devices are connected in parallel, they need to be re-evaluated
based on system capacity.
 When the PCS is applied to the off-grid system, the AC side needs
to be connected to the △/Y type transformer.
PCS
LOAD
Primary side Secondary side
Transformer
 No need to connect N wire terminal When the device is operated
on-grid system, do not connect the N cable and the PCS only
connects the L1 (A) /L2 (B) /L3 (C) wire.
6.4.2 AC Cable Requirements
The cross-section of the AC cable conductor must be sized in order to prevent
accidental disconnections of the PCS from the grid due to high impedance of
the cable that connects the PCS to the power supply point.
A
B
L1
L2
L3
C
D
No.
Description
Remark
A
Protective layer /Conduit
Outer diameter: 25mm~32mm /
0.98in~1.26in