Huawei SUN2000-75KTL Series User Manual page 125

SUN2000-(75KTL, 100KTL, 110KTL, 125KTL) Series
User Manual
Alarm Alarm
ID Name
2036 Grid
Overfreq
uency
2037 Grid
Underfre
quency
Issue 11 (2021-11-10)
Alarm Possible Causes
Severit
y
Major Cause ID = 1
Power grid exception: The actual
power grid frequency is higher
than the standard requirement for
the local power grid.
Major Cause ID = 1
Power grid exception: The actual
power grid frequency is lower
than the standard requirement for
the local power grid.
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
overfrequency 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 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.
116