Powering Off The Smart Pcs; Powering Off The Battery Side Of The Dc Lv Panel; Powering Off The Ess - Huawei LUNA2000-2.0MWH-1H0 User Manual

LUNA2000-2.0MWH-1H0, 2H0 Smart String ESS
User Manual

9.3 Powering Off the Smart PCS

Procedure
Step 1 Wear proper personal protective equipment (PPE).
Step 2 Turn off the AC switch between the Smart PCS and the grid.
Step 3 Open the AC maintenance compartment door, install a support bar, and use a
multimeter to measure the voltage between the AC terminal block and the
ground. Ensure that the AC side of the Smart PCS is disconnected.
Step 4 Turn off the DC switch between the Smart PCS and the DC LV Panel busbar.
Step 5 Open the DC maintenance compartment door, install a support bar, and use a
multimeter to measure the voltage between the DC terminal block and the
ground. Ensure that the DC side of the Smart PCS is disconnected.
----End

9.4 Powering Off the Battery Side of the DC LV Panel

Step 1 Turn off the switches on the battery side of the DC LV Panel.
----End

9.5 Powering Off the ESS

Switching Off the DC Circuit Breakers of the Rack in the Battery Cabin
Step 1 Turn off output switches 1Q1, 2Q, 3Q, 4Q1, 5Q1, and 6Q1 of each battery rack in
the ESS.
----End
Switching Off the DC Circuit Breakers in the Control Unit Cabin
Step 1 Switch off DC output circuit breakers 1Q2, 2Q2, and 3Q2 of the ESS.
----End
Powering Off the Secondary Devices of the ESS
Step 1 Switch off all circuit breakers of the ESS power distribution system.
1.
Issue 02 (2021-11-15)
Switch off the AC power circuit breakers of the air conditioner in sequence.
(corresponding to number 1 in the figure)
– LUNA2000-2.0MWH-1H0: Switch off the circuit breakers 3FCB1, 3FCB2,
3FCB4, 3FCB5, 3FCB7, 3FCB8, 3FCB10, 3FCB11 in sequence.
– LUNA2000-2.0MWH-2H0: Switch off the circuit breakers 3FCB2, 3FCB4,
3FCB6, 3FCB8, 3FCB10, 3FCB12 in sequence.
Copyright © Huawei Technologies Co., Ltd.
9 Powering Off the System
132