Huawei SUN2000-111KTL-NHM0 User Manual page 121

SUN2000-111KTL-NHM0
User Manual
Alarm Alarm
ID Name
2037 Grid
Underfreq
uency
2038 Unstable
Grid
Frequency
Issue 09 (2023-12-18)
Alarm Possible Causes
Severity
Major Cause ID = 1
Power grid exception: The actual
power grid frequency is lower
than the standard requirement for
the local power grid.
Major Cause ID = 1
Power grid exception: The actual
grid frequency change rate does
not comply with the local power
grid standard.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Suggestions
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 not, contact
the local power
operator. If yes, log in
to the mobile phone
app, SmartLogger, or
NMS to modify the
power grid
underfrequency
protection threshold
with the consent of
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 grid frequency is
within the acceptable
range. If not, contact the
local power operator.
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