Huawei SUN2000-2KTL-L1 User Manual page 91

SUN2000-(2KTL-6KTL)-L1
User Manual
Alarm ID Alarm
Name
2034 Grid
Overvolt
age
2036 Grid
Overfreq
uency
Issue 03 (2020-07-20)
Alarm Possible Causes
Severity
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).
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.
8 System Maintenance
Troubleshooting
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 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, SmartLogger,
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.
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 power grid
frequency is within the
allowed range. If no, contact
the local power operator. If
yes, modify the grid
overfrequency protection
threshold through the mobile
app, SmartLogger, or NMS
with the consent of the local
power operator.
85