Figure 9-2 Power-on process
9.4 Powering on the SACU
Prerequisites
● The check before power-on has been completed.
● Operators have worn PPE.
● Ensure that the power voltage of the SACU is within the operating voltage
range, and the three-phase input voltage is within the operating voltage
range of the MBUS CCO.
Procedure
Step 1 Turn on the single-phase power switch that controls the power supply from the
remote transformer station to the SACU.
Step 2 Turn on the three-phase power switch that controls the power supply from the
remote transformer station to the SACU.
● If the SACU supports the access of one MBUS route, turn on the
corresponding three-phase power switch.
● If the SACU supports the access of two MBUS routes, turn on the
corresponding three-phase power switches.
Step 3 Check that the input voltages of all switches of the SACU are within the operating
voltage ranges using a multimeter.
Step 4 Turn on the QF03 single-phase input switch in the SACU.
Step 5 Turn on the three-phase input switch on the SACU.
LUNA2000-200KWH-2H1 Smart String ESS
User Manual 9 System Power-On
Issue 03 (2023-03-30) Copyright © Huawei Digital Power Technologies Co., Ltd. 123
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