3 Check and Preparation Before Power-On
Step 1 Perform the check before power-on by referring to the "Check Before Power-On"
section in the user manual of each device.
Ensure that cables are correctly and securely connected to the IMD according to
the IMD user manual. If cables are incorrectly connected or in poor contact, the
IMD cannot work properly and the insulation resistance detection function fails.
Step 2 Check whether the phase sequence of the AC power cables between the PCS and
the isolation transformer is consistent. If not, adjust the wiring sequence of the AC
power cables.
Step 3 Install the PSU in the ESS.
In an outdoor scenario, you are advised to power on the PSU within 24 hours after
unpacking. If the PSU cannot be powered on in time, place it in a dry indoor
environment without corrosive gas.
Figure 3-1 Installing the PSU
Commercial and Industrial Microgrid Energy Storage
Solution
Quick Guide (With Third-Party Microgrid Central
Controller) 3 Check and Preparation Before Power-On
Issue 04 (2023-12-18) Copyright © Huawei Digital Power Technologies Co., Ltd. 17
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