Huawei SUN2000-17KTL User Manual

SUN2000 (8KTL-28KTL)
User Manual
8 Maintenance
Issue 12 (2019-06-30)
Copyright © Huawei Technologies Co., Ltd.
111
Alarms range in severity according to the following definitions:

Major: The inverter enters the shutdown mode and disconnects from the power grid to
stop generating electricity after a fault occurs.

Minor: Some components are faulty but the inverter can still generate electricity.

Warning: The inverter output power decreases due to external factors.
Table 8-2 describes the common fault alarms of the SUN2000 and troubleshooting measures.
Table 8-2 Troubleshooting
Alarm ID
Name
Severity
Causes
Measures
103
DC Over
Voltage
Major

Cause ID = 1
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 1 and 2, and
therefore the PV string
open-circuit voltage
exceeds the maximum
value of the inverter MPPT
voltage.

Cause ID = 2
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 3 and 4, and
therefore the PV string
open-circuit voltage
exceeds the maximum
value of the inverter MPPT
voltage.

Cause ID = 3
The PV array is not
properly configured.
Excessive PV modules are
connected in series to PV
strings 5 and 6, and
therefore the PV string
open-circuit voltage
exceeds the maximum
value of the inverter MPPT
voltage.

Cause ID = 1
Reduce the number of PV
modules connected in series to
PV strings 1 and 2 until the
open-circuit voltage is less than
or equal to the maximum inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 alarm disappears.

Cause ID = 2
Reduce the number of PV
modules connected in series to
PV strings 3 and 4 until the
open-circuit voltage is less than
or equal to the maximum inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 alarm disappears.

Cause ID = 3
Reduce the number of PV
modules connected in series to
PV strings 5 and 6 until the
open-circuit voltage is less than
or equal to the maximum inverter
input voltage. After the PV array
configuration is corrected, the
SUN2000 alarm disappears.
106 to 111
String 1-6
Abnormal
Warning
Cause ID = 1

PV strings have been
shielded for a long time.

PV strings have
deteriorated.
1. Check whether the output current
of a PV string is obviously less
than the output current of other
PV strings.
2. If so, check whether the PV
string is shielded.
3. If the PV string is clean of

Huawei SUN2000-17KTL Specifications

General

Max. efficiency	98.6%
European efficiency	98.3%
Max. DC voltage	1100 V
MPPT voltage range	200 V - 1000 V
Max. input current per MPPT	26 A
Number of MPPTs	2
AC nominal power	17000 W
Operating temperature range	-25°C to +60°C
Cooling	Natural Convection
Protection rating	IP65
Max. AC power	18700 VA
Rated AC voltage	220 V / 380 V, 230 V / 400 V