Huawei SUN2000-8K-LC0 Series User Manual page 101

SUN2000-(8K, 10K)-LC0 Series
User Manual
Alarm ID Alarm
Name
2033 Grid
Undervol
tage
2034 Grid
Overvolt
age
Issue 01 (2023-09-15)
Alarm Possible Causes
Severity
Major Cause ID = 1
The grid voltage is below
the lower threshold or the
low voltage duration has
lasted for more than the
value specified by low
voltage ride-through
(LVRT).
Major Cause ID = 1
The grid voltage exceeds
the higher threshold or the
high voltage has lasted for
more than the value
specified by high voltage
ride-through (HVRT).
Copyright © Huawei Digital Power Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The device
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm occurs frequently,
check whether the power grid
voltage is within the allowed
range. If no, contact the local
power operator. If yes, modify
the grid undervoltage
protection threshold through
the mobile app or network
management system (NMS)
with the consent of the local
power operator.
3. If the fault persists for a long
time, check the connection
between the AC switch and
the output power cable.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The device
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm occurs frequently,
check whether the power grid
voltage is within the allowed
range. If no, contact the local
power operator. If yes, modify
the grid overvoltage
protection threshold through
the mobile app or NMS with
the consent of the local
power operator.
3. Check whether the peak
voltage of the power grid is
too high. If the fault persists
and cannot be rectified for a
long time, contact the power
operator.
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