Huawei SUN2000-250KTL Series User Manual page 53

SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual
● Do not connect loads between a SUN2000 and an AC switch that directly
● To ensure that the SUN2000 can be safely disconnected from the power grid
● If an AC switch is used with specifications beyond local standards, regulations,
● Do not open the panel of the SUN2000.
● Before opening the maintenance compartment door, ensure that no electrical
● Do not open the maintenance compartment door on rainy or snowy days. If
● Do not leave unused screws in the maintenance compartment.
● Each SUN2000 must be equipped with a three-phase AC switch. Multiple
● The distance between each SUN2000 and the AC combiner box or the low-
● The cable outer diameter can be measured using the ruler sticker in the
● Ensure that the cable jacket is in the maintenance compartment.
● Ensure that the AC output power cables are connected securely. Otherwise, the
● In the MBUS communication networking quick scheduling scenario, connect AC
Issue 02 (2022-12-20)
WARNING
connects to the SUN2000. Otherwise, the switch may trip by mistake.
when an exception occurs, connect an AC switch to the AC side of the
SUN2000. Select an appropriate AC switch in accordance with local industry
standards and regulations.
or Huawei's recommendations, the switch may fail to turn off in a timely
manner in case of exceptions, causing serious faults.
connections are made for the SUN2000 on the AC or DC side.
you need to, take protective measures to prevent rain or snow from entering
the maintenance compartment. If protective measures cannot be taken, do not
open the maintenance compartment door.
CA UTION
SUN2000s cannot connect to the same AC switch.
voltage cabinet of the transformer station must be at least 10 m, or the total
distance between two adjacent SUN2000s and the AC combiner box or the
low-voltage cabinet of the transformer station must be at least 20 m.
NO TICE
maintenance compartment.
SUN2000 may fail to operate, or become overheated during operation due to
an unreliable connection, which will damage the terminal block. The resulting
device damage is not covered by the warranty.
power cables in the maintenance compartment from left to right in the
sequence of L1, L2, and L3.
Copyright © Huawei Technologies Co., Ltd.
5 Installing Cables
47