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SUN2000-(125KTL-M5, 200KTL-H4, 250KTL-H0,
286KTL-H0)
User Manual
Alarm
Alarm
ID
Name
2039
AC
Overcur
rent
2040
DC
Compon
ent
Overhig
h
2051
Abnorm
al
Residual
Current
Issue 04 (2023-09-22)
Severit
Possible Cause
y
Major
Cause ID = 1
The grid experiences a dramatic
voltage drop or is short-circuited.
As a result, the transient AC
current of the device exceeds the
upper threshold and triggers
protection.
Major
Cause ID = 1
The DC component in the AC
current exceeds the upper
threshold.
Major
Cause ID = 1
The ground insulation resistance
decreases during device
operation.
Copyright © Huawei Technologies Co., Ltd.
9 Alarm Reference
Suggestion
1. The device detects its
external working conditions
in real time. After the fault
is rectified, the device
automatically recovers.
2. If the alarm occurs
frequently and affects the
operation of the power
plant, check whether AC
short circuit exists. If the
fault persists, contact your
dealer or technical support.
1. The device detects its
external working conditions
in real time. After the fault
is rectified, the device
automatically recovers.
2. If the alarm occurs
frequently, contact your
dealer or technical support.
1. If the alarm occurs
occasionally, the external
circuit may be abnormal
temporarily. The device will
automatically recover after
the fault is rectified.
2. If the alarm occurs
frequently or persists, check
whether the DC-to-ground
impedance is too low.
114
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