Huawei SUN2000-8KTL-M0 User Manual page 48

SUN2000-(12KTL, 15KTL, 17KTL, 20KTL)-M0
User Manual
● Before connecting the DC input power cable, ensure that the DC voltage is
● When the SUN2000 is operating, it is not allowed to operate the DC input
● If no PV string is connected to a DC input terminal of the SUN2000, do not
Ensure that the following conditions are met. Otherwise, the SUN2000 may be
damaged, or even a fire could happen.
● PV modules connected in series in each PV string are of the same specifications.
● The open-circuit voltage of each PV string is always lower than or equal to
● The maximum short-circuit current of each PV string must be lower than or
● The DC input power cable is correctly connected. The positive and negative
● If the DC input power cable is reversely connected, do not operate the DC
● Because the output of the PV string connected to the SUN2000 cannot be
● The PV strings connecting to the same MPPT circuit should contain PV modules
● During the installation of PV strings and the SUN2000, the positive or negative
Issue 06 (2020-07-02)
D ANGER
within the safe range (lower than 60 V DC), and that the DC SWITCH is set to
the OFF position. Failure to do so could generate high voltage, which may
cause electric shocks.
power cable, such as connecting or disconnecting a PV string or a PV module in
a PV string. Failing to do so may cause electric shocks.
remove the watertight cap from the terminal. Otherwise, the IP rating of the
SUN2000 will be affected.
WARNING
1080 V DC.
equal to 15 A.
terminals of a PV module are connected to corresponding positive and negative
DC input terminals of the SUN2000.
switch and positive and negative connectors. Wait until the solar irradiance
declines at night and the PV string current reduces to below 0.5 A, and then
turn off the DC switch. Remove the positive and negative connectors to correct
the polarity.
NO TICE
grounded, ensure that the PV module output is insulated to ground.
of the same model and quantity.
terminals of PV strings may be short-circuited to ground if power cables are not
properly installed or routed. An AC or DC short circuit may occur and damage
the device when the SUN2000 is operating. The caused device damage is not
covered under any warranty.
Copyright © Huawei Technologies Co., Ltd.
5 Electrical Connections
41