Huawei SUN2000-50KTL-M0 User Manual page 102

SUN2000-(50KTL-M0, 70KTL-INM0)
User Manual (India Edition)
Alarm Alarm Alarm
ID Name Severity
2034 Grid Major
Overvolt
age
2035 Grid Major
Voltage
Imbalan
ce
2036 Grid Major
Overfre
quency
Issue 03 (2019-07-30)
Cause
Cause ID = 1
The grid voltage exceeds the higher
threshold or the high voltage duration
has lasted for more than the value
specified by HVRT.
Cause ID = 1
The difference between grid phase
voltages exceeds the upper threshold.
Cause ID = 1
Power grid exception: The actual grid
frequency is higher than the
requirement of the local power grid
standard.
Copyright © Huawei Technologies Co., Ltd.
8 Maintenance
Measures
1. Check whether the grid
connection voltage exceeds the
upper threshold. If yes, contact
the local power operator.
2. If you have confirmed that the
grid connection voltage
exceeds the upper threshold
and obtained the consent of the
local power operator, modify
the overvoltage protection
threshold.
3. Check that the peak grid
voltage does not exceed the
upper threshold.
1. Check that the grid voltage is
within the normal range.
2. Check the connection of the
AC output power cable. If the
cable connection is proper but
the alarm occurs frequently
and affects the power
production of the PV plant,
contact 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. If
yes, modify the power grid
overfrequency protection
threshold with the consent of
the local power operator.
96