Alarm
ID
Alarm Name Alarm
Severity
Possible Cause Troubleshooting Suggestion
2072 Transient AC
Overvoltage
Major Cause ID = 1
The inverter detects
that the phase
voltage exceeds the
transient AC
overvoltage
protection
threshold.
1. Check whether the grid
connection voltage exceeds the
upper threshold. If yes, contact
the local power operator.
2. If you have conrmed that the
grid connection voltage exceeds
the upper threshold and
obtained the consent of the
local power operator, modify the
overvoltage protection
threshold.
3. Check that the peak grid voltage
does not exceed the upper
threshold.
SUN2000-(8KTL-20KTL)-M2
User Manual 8 Maintenance
Issue 11 (2023-02-07) Copyright © Huawei Technologies Co., Ltd. 103
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