Ac Side-Wiring - Alpha ESS Storion-T50 Installation Manual

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Figure 4-22 Connect the power line of the PV , With Combiner box
A. Insert the PV input positive pole through the waterproof terminal into the positive input
point, and lock it with a screwdriver.
B. Similarly, insert the PV negative pole through the waterproof terminal into the
negative input point, and lock it with a screwdriver. Remember that the negative pole
passes through the Hall.
C. Connect the power line of the PV Combiner box to the bronze medal of the DC
Cabinet, as shown in Figure 4- 22.
D. Connect the RS485 communication line of the PV combiner box to the RS485
interface of the TOP BMU, as shown in Figure 4- 22.
Note: There are numbers on the PV combiner box, remember to have
one-to-one correspondence. For example, "1+" corresponds to "1-", "2+"
corresponds to "2-", and so on.
E. Connect another PV Combiner box and repeat steps a), b), c).
F. Connect the RS485 communication line between the two PV combiner boxes, as

4.4.5. AC Side-Wiring

shown in Figure 4- 22.
A. Ensure that the phase consequence of wires should be a positive consequence.
B. Disconnect AC output distribution switch in PCS.
C. Use a multi-meter to measure and ensure that the cables connected to the terminals
are electrically neutral.
D. While on-grid mode,
utility grid and PE are respectively connected to A(L1)/B(L2)/C(L3) phases of utility
grid and PE.
E. While off-grid mode,
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Installation
A(L1)/B(L2)/C(L3) phases of AC output distribution switch of
A(L1)/B(L2)/C(L3) phases of AC output distribution switch of
Alpha ESS Co., Ltd.