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Table 6-6 Corresponding
Relations of Power Grid
Connections
Table 6-7 Load connection
correspondence
6.7 AC Side Wiring
6.7.1AC Connection
All models of this series energy storage inverters have grid connection. Only those with
bypass need to consider bypass connection. Their corresponding relations are shown in the
table below. Refer to Section 6.5 for the access location of copper bars.
A
Phase A or U connected to power grid
B
Phase B or V connected to power grid
C
Connecting to C or W phase of power grid
N
N Phase Connecting to Power Grid
6.7.2 AC Side Line Steps
：
Step 1:
Measure with a multimeter to confirm that all terminals have been powered off.
Step 2:
Confirm the phase sequence of the cables and mark them well. Three-phase AC
output cable L1, L2, L3, N should be added yellow, green, red and black insulating bushing
respectively in order to distinguish the phase sequence.
Step 3:
Correctly connect the ABC (UVW) three-phase of the power grid to the inverter
according to Table 6-6.
Step 4:
If it is an off-grid integrated model, connect the cables according to Table 6-6 and
Table 6-7.
6.8 System Grounding
The grounding copper bars in this series energy storage inverters need to be connected
reliably by grounding cables. Grounding copper bars have been reliably connected with the
outer shell of the inverter in the cabinet. When connecting, it is necessary to connect the
grounding copper bars with equipotential connection devices of the installation site or the
electrical control room. The resistance shall not be higher than 4Ω, the diameter of
grounding cable shall not be less than 16 mm ², and the position of the copper bars shall
refer to the internal terminal of 6.5 sections.
6.9 Installation Is Complete
After all mechanical and electrical installations have been completed, the removed switch
baffles and lower fences need to be reinstalled on the inverter. After installation, power-on
operation is allowed only after confirmation is correct.
𝐴
Phase A or U connected to
load
B
Phase B or V connected to
load
C
Phase C or W connected to
load
