Huawei SUN2000-3KTL-M1 - Page 94

ID Name Severity Cause Solution
2034 Grid
overvolta
ge
Major Cause ID = 1
The grid voltage exceeds
the upper threshold or the
high voltage duration has
lasted for more than the
value
specied by high
voltage ride-through
(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 persists, check
whether the power grid
voltage is within the
acceptable range. If not,
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 alarm persists
and cannot be
rectied for a
long time, contact the power
operator.
2035
Grid volt.
Imbalanc
e
Major Cause ID = 1
The dierence 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 persists, check
whether the power grid
voltage is within the
acceptable range. If not,
contact the local power
operator.
3. If the alarm lasts for a long
time, check the AC output
power cable connection.
4. If the AC output power cable
is correctly connected, yet the
alarm persists and
aects the
energy yield of the PV plant,
contact the local power
operator.
SUN2000-(3KTL-10KTL)-M1
User Manual 8 Maintenance
Issue 02 (2020-11-20) Copyright © Huawei Technologies Co., Ltd. 87