Huawei SUN2000-4.95KTL-JPL0 User Manual page 61

SUN2000-4.95KTL-JPL0
User Manual
Alarm ID Alarm
Name
2035 Grid Volt.
Imbalanc
e
2036 Grid
Overfreq
uency
Issue 04 (2023-02-17)
Alarm Cause
Severity
Major Cause ID = 1
The difference between
grid phase voltages
exceeds the upper
threshold.
Major Cause ID = 1
Power grid exception: The
actual power grid
frequency is higher than
the standard requirement
for the local power grid.
Copyright © Huawei Technologies Co., Ltd.
7 System Maintenance
Suggestions
1. If the alarm occurs
accidentally, the power grid
may be abnormal
temporarily. The inverter
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 acceptable range. If no,
contact the local power
operator.
3. If the fault persists for a long
time, check the connection of
the AC output power cables.
4. If the AC output power cables
are correctly connected, but
the alarm persists and affects
the energy yield of the PV
plant, contact the local power
operator.
1. If the alarm occurs
occasionally, the power grid
may be abnormal
temporarily. The solar
inverter 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 acceptable range.
If no, contact the local power
operator. If yes, log in to the
SmartLogger, or NMS to
modify the power grid
overfrequency protection
threshold with the consent of
the local power operator.
55