Huawei SUN2000 Series User Manual page 75

SUN2000-(3KTL-10KTL)-M0
User Manual
Alarm ID Alarm
Name
2036 Grid
Overfrequ
ency
2037 Grid
Underfreq
uency
2038 Unstable
Grid
Frequency
Issue 04 (2019-10-18)
Alarm Possible Cause
Severity
Major Cause ID = 1
Power grid exception: The
actual grid frequency is higher
than the requirement of the
local power grid standard.
Major Cause ID = 1
Power grid exception: The
actual grid frequency is lower
than the requirement of the
local power grid standard.
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.
Troubleshooting Suggestion
1. If the alarm occurs accidentally,
the power grid may be abnormal
temporarily. The 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
no, contact the local power
operator. If yes, log in to the
mobile phone app, SmartLogger,
or NMS to modify the grid
underfrequency protection
threshold with the consent of the
local power operator.
1. If the alarm occurs accidentally,
the power grid may be abnormal
temporarily. The 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
no, contact the local power
operator. If yes, log in to the
mobile phone app, SmartLogger,
or NMS to modify the grid
underfrequency protection
threshold with the consent of the
local power operator.
1. If the alarm occurs accidentally,
the power grid may be abnormal
temporarily. The 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
no, contact the local power
operator.
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