Huawei 01075345 User Manual page 102

SUN2000-(2KTL-6KTL)-L1
User Manual
Alarm Alarm Name
ID
2038 Unstable Grid
Frequency
2039 Output
Overcurrent
2040 Output DC
Component
Overhigh
Issue 10 (2023-02-13)
Alarm Possible Causes
Severity
Major Cause ID = 1
Power grid exception: The
actual grid frequency
change rate does not
comply with the local
power grid standard.
Major Cause ID = 1
The power grid voltage
drops dramatically or the
power grid is short-
circuited. As a result, the
SUN2000 transient output
current exceeds the upper
threshold and therefore the
SUN2000 protection is
triggered.
Major Cause ID = 1
The DC component of the
SUN2000 output current
exceeds the specified upper
threshold.
Copyright © Huawei Technologies Co., Ltd.
8 System Maintenance
Troubleshooting
1. If the alarm occurs
occasionally, the power
grid may be abnormal
temporarily. The
SUN2000 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
allowed range. If no,
contact the local power
operator.
1. The SUN2000 detects its
external working
conditions in real time.
After the fault is
rectified, the SUN2000
automatically recovers.
2. If the alarm occurs
frequently and affects
the energy yield of the
power plant, check
whether the output is
short-circuited. If the
fault persists, contact
your dealer or Huawei
technical support.
1. The SUN2000 detects its
external working
conditions in real time.
After the fault is
rectified, the SUN2000
automatically recovers.
2. If the alarm occurs
frequently, contact your
dealer or Huawei
technical support.
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