Step Task Power-On Operation
5 Powering on the
ESS-Smart Rack
Controller
Turn on DC switch 1Q1 in the ESS (on the
battery rack side).
Powering on the
Smart Rack
Controller-PCS
Turn on DC switch 1Q2 in the ESS.
6 Powering on the
isolation
transformer
For details, see the documents provided by the
vendor.
7 Powering on the
PCS
Turn on the AC switch between the PCS and
the isolation transformer.
8 Powering on the
SUN2000
Select a power-on method based on the
inverter model.
Method 1:
1. Set the DC SWITCH to ON. When you hear
a click, the switch is completely turned on.
2. The indicator is not steady red.
Method 2:
1. Set the DC SWITCH 1 (MAIN SWITCH) to
ON. When you hear a click, the switch is
completely turned on.
2. Check the status of the PV connection
indicator. If it is steady green, set DC
SWITCH 2 and DC SWITCH 3 to ON.
3. Check that other indicators are not steady
red.
Note: For details about the switch layout and operations of the devices prepared
by the customer, see the documents provided by the vendors.
4.1.2 O-Grid PV+ESS System
Power on the o-grid PV+ESS system when the UPS can supply power, the DG is
not running, and the power distribution equipment has no power supply.
Commercial and Industrial Microgrid Energy Storage
Solution
Quick Guide (With Third-Party Microgrid Central
Controller) 4 System Power-On and Commissioning
Issue 04 (2023-12-18) Copyright © Huawei Digital Power Technologies Co., Ltd. 22
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