Huawei SUN2000-4.95KTL-JPL0 User Manual page 65

SUN2000-4.95KTL-JPL0
User Manual
Alarm ID Alarm
Name
2071 Passive
Islanding
2072 Transient
AC
Overvolta
ge
Issue 04 (2023-02-17)
Alarm Cause
Severity
Major Cause ID = 1
When the power grid
experiences an AC power
outage, the solar inverter
detects an island grid
passively.
Major Cause ID = 1
The solar inverter detects
that the phase voltage
exceeds the transient AC
overvoltage protection
threshold.
NO TE
Contact your dealer if the fault persists after you complete the procedures listed above.
Copyright © Huawei Technologies Co., Ltd.
7 System Maintenance
Suggestions
Check that the grid connection
voltage of the solar inverter is
normal.
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
undervoltage protection
threshold.
3. Check whether the peak grid
voltage exceeds the upper
threshold.
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