Table 5-1 Component description
No. Component Description Source
A PV string ● A PV string consists of PV modules connected in
series.
● The SUN2000 supports 28 PV string inputs.
Prepared by
the
customer
B Environmental
monitoring
instrument (EMI)
When the SmartLogger is used, the EMI can be
directly connected to the SmartLogger or connected
to the last SUN2000 cascaded over RS485.
Prepared by
the
customer
C SmartLogger The SUN2000 communicates with the management
system through the SmartLogger.
Purchased
from the
Company
D Tracking system The angle of trackers can be adjusted. Prepared by
the
customer
E Fuse/Circuit
breaker
The tracking system should be equipped with an
overcurrent protection device or component. The
power cable between the device or component and
the wiring terminal should be shorter than or equal
to 2.5 m.
A fuse or a circuit breaker is recommended.
● Installed between the SUN2000 and tracking
control box
● Fuse
specications: rated voltage ≥ 800 V; rated
current: 16 A; protection: gG
● Circuit breaker
specications: rated voltage ≥ 800
V; rated current: 16 A; tripping: C
Prepared by
the
customer
F AC switch To ensure that the SUN2000 can be safely
disconnected from the power grid 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.
● Installed in the AC combiner box
● Recommended: a three-phase AC circuit breaker
with a rated voltage greater than or equal to 800
V AC and a rated current of 400 A
Prepared by
the
customer
The SUN2000 has an internal residual current monitoring unit (RCMU). Its
external AC switch should be a three-phase circuit breaker or any other AC load
circuit breaker to safely disconnect the SUN2000 from the power grid.
SUN2000-(250KTL, 280KTL, 300KTL, 330KTL) Series
User Manual 5 Electrical Connections
Issue 07 (2023-06-30) Copyright © Huawei Technologies Co., Ltd. 42
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