Huawei SUN2000-60KTL-M0 User Manual page 102

SUN2000-60KTL-M0
User Manual (Europe Edition)
Alarm Alarm Alarm
ID Name Severity
2037 Grid Major
Underfr
equency
2038 Unstabl Major
e Grid
Frequen
cy
2039 Output Major
Overcur
rent
Output
2040 Major
DC
Compon
ent
Overhig
h
2051 Abnorm Major
al
Residual
Issue 02 (2018-10-15)
Cause
Power grid exception: The actual
power grid frequency is lower than the
standard requirement for the local
power grid.
Power grid exception: The actual grid
frequency change rate does not comply
with the local power grid standard.
The power grid voltage drops
dramatically or the power grid is
short-circuited. As a result, the inverter
transient output current exceeds the
upper threshold and therefore the
inverter protection is triggered.
The DC component of the SUN2000
output current exceeds the specified
upper threshold.
The insulation impedance of the input
side to PE decreases when the
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8 Maintenance
Measures
1. If the alarm occurs
accidentally, 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 grid
frequency is within the
acceptable range. If no, contact
the local power operator. If
yes, modify the power 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 SUN2000 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.
1. The inverter detects its external
working conditions in real
time. After the fault is
rectified, the inverter
automatically recovers.
2. If the alarm occurs frequently
and affects the power
production of the PV plant,
check whether the output is
short-circuited. If the fault
persists, contact Huawei
technical support.
1. If the exception is caused by an
external fault, the SUN2000
automatically recovers after the
fault is rectified.
2. If the alarm occurs frequently
and affects the power
production of the PV plant,
contact Huawei technical
support.
1. If the alarm occurs
accidentally, the external
power cable may be abnormal
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