Huawei SUN2000-250KTL Series User Manual page 87

SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual
Alar Alarm
m ID Name
2035 Grid
Voltage
Imbalan
ce
2036 Grid
Overfreq
uency
Issue 02 (2022-12-20)
Alarm Possible Cause
Severity
Major Cause ID = 1
The difference between
grid phase voltages exceeds
the upper threshold.
Major Cause ID = 1
Power grid exception: The
power grid frequency is
higher than the frequency
required in the local
standard.
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Suggestion
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 normal range.
If no, contact the local power
operator.
3. If the fault persists for a long time,
check the connection of the AC
cables.
4. If the AC cables are correctly
connected and the alarm persists
and affects the operation of the
plant, contact the local power
operator.
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
frequency is within the allowed
range. If not, contact the local
power operator. If yes, modify the
power grid overfrequency
protection threshold after
obtaining the consent of the local
power operator.
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