Alarm
ID
Alarm
Name
Severity Possible Cause Suggestion
3826 Combustib
le Gas
Alarm
Major Cause ID = 1
1. The safety valve of
the lithium battery is
open, and
combustible gas is
leaked.
2. Lithium battery
thermal runaway
occurs.
1. Remotely monitor the system for
30 minutes to check whether other
exceptions (such as abnormal
temperature, abnormal battery
voltage, abnormal battery
temperature, and exhaust fan
startup) occur. If yes, ensure that
the ESS is shut down. During
remote monitoring, do not
approach the battery cabin or open
the cabin doors.
2. If no exception is found during
the remote monitoring, assign
trained personnel to the site and
observe the system for 30 minutes
from a safe distance. If there is
smoke or
re, remotely power o
the system, evacuate onsite
personnel as soon as possible, and
call the
re emergency service.
3. If no exception is found during
remote monitoring and onsite
observation, manually clear the
alarm. If the alarm clearance fails,
contact your technical support.
3827
Ambient
Temperatu
re High
Major Cause ID = 1
The ambient
temperature in the
battery cabin is too high.
1. Check whether the air
conditioners in the battery cabin
are faulty.
2. Check whether the doors of the
battery cabin are completely closed.
3. After the battery cabin
temperature and battery rack
temperature drop to below 58°C,
manually clear the alarm. If the
alarm persists, contact your
technical support.
Cause ID = 2
The ambient
temperature of the
control unit cabin is too
high, which triggers
system derating or
shutdown.
1. Check whether the air
conditioners in the control unit
cabin are faulty.
2. Check whether the doors of the
control unit cabin are completely
closed.
LUNA2000-2.0MWH Series Smart String ESS
User Manual 10 Alarm Reference
Issue 08 (2022-11-15) Copyright © Huawei Technologies Co., Ltd. 183
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