Huawei SUN2000-50KTL-M0 User Manual page 103

SUN2000-(50KTL-M0, 70KTL-INM0)
User Manual (India Edition)
Alarm Alarm Alarm
ID Name Severity
2037 Grid Major
Underfr
equency
2038 Unstable Major
Grid
Frequen
cy
2039 Output Major
Overcur
rent
2040 Output Major
DC
Compon
ent
Overhig
h
Issue 03 (2019-07-30)
Cause
Cause ID = 1
Power grid exception: The actual
power grid frequency is lower than the
standard requirement for the local
power grid.
Cause ID = 1
Power grid exception: The actual grid
frequency change rate does not comply
with the local power grid standard.
Cause ID = 1
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.
Cause ID = 1
The DC component of the SUN2000
output current exceeds the specified
upper threshold.
Copyright © Huawei Technologies Co., Ltd.
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.
97