Huawei SUN2000 Series User Manual page 102

SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual
Alarm Alarm
ID Name
2034 Grid
Overvolt
age
2035 Grid Volt.
Imbalanc
e
Issue 02 (2022-06-30)
Alarm Possible Cause
Severity
Major Cause ID = 1
The grid voltage exceeds the
upper threshold or the
overvoltage duration exceeds the
time that triggers high voltage
ride-through (HVRT).
Major Cause ID = 1
The difference between grid
phase voltages exceeds the upper
threshold.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Suggestion
1. Check whether the grid
connection voltage
exceeds the upper
threshold. If yes, contact
the local power operator.
2. If you have confirmed that
the grid connection
voltage exceeds the upper
threshold and have
obtained the consent of
the local power operator,
modify the overvoltage
protection threshold.
3. Check whether the peak
grid voltage exceeds the
upper threshold.
1. Check that the grid
voltage is within the
normal range.
2. Check that the AC output
power cable is correctly
connected. If the AC
output power cable is
correctly connected, yet
the alarm persists and
affects the energy yield of
the PV plant, contact the
local power operator.
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