Huawei SUN2000-8KTL-M0 - Page 71

SUN2000-(12KTL, 15KTL, 17KTL, 20KTL)-M0
User Manual
7 Maintenance
Issue 03 (2019-07-19)
Copyright © Huawei Technologies Co., Ltd.
65
Alarm ID
Alarm
Name
Alarm
Severity
Possible Cause
Troubleshooting Suggestion
2034
Grid
Overvolta
ge
Major
Cause ID = 1
The power grid voltage is
beyond the upper threshold or
the overvoltage duration
exceeds the value specified by
HVRT.
1. If the alarm occurs occasionally,
the power grid may be abnormal
temporarily. The SUN2000
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm occurs frequently,
check whether the grid voltage is
within the acceptable range. If no,
contact the local power operator.
If yes, log in to the mobile phone
app, SmartLogger, or NMS to
modify the grid overvoltage
protection threshold 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.
2035
Unbalance
d Grid
Voltage
Major
Cause ID = 1
The difference between grid
phase voltages exceeds the
upper threshold.
1. If the alarm occurs occasionally,
the power grid may be abnormal
temporarily. The SUN2000
automatically recovers after
detecting that the power grid
becomes normal.
2. If the alarm occurs frequently,
check whether the grid voltage is
within the acceptable range. If no,
contact 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.