11 Replacing a Circuit Breaker
11.1 Replacing a DC Switch
Figure 11-1 Position of the DC switch
Prerequisites
● Fault locating:
Symptom
Possible Cause Solution
The switch is
faulty due to
overcurrent or
short circuit.
1. The switch is not ON or
OFF.
2. The switch is faulty.
1. Set the switch to OFF and
then to ON.
2. Replace the switch.
LUNA2000-200KWH-2H1 Smart String ESS
Maintenance Manual 11 Replacing a Circuit Breaker
Issue 02 (2023-02-28) Copyright © Huawei Digital Power Technologies Co., Ltd. 108
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