Huawei SUN2000-90KTL Series User Manual page 25

SUN2000-(90KTL, 95KTL, 100KTL, 105KTL) Series
User Manual
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Network Application
The SUN2000 applies to distributed grid-tied commercial PV systems and large-
scale grid-tied PV plants. Typically, a grid-tied PV system consists of the PV string,
SUN2000, AC combiner box, and step-up transformer.
Figure 2-4 Network application
(A) PV string
(D) Step-up transformer
Supported Power Grid
The SUN2000 supports the IT power grid.
Issue 16 (2023-12-20)
construction and maintenance costs and improves communication reliability
and efficiency.
Smart I-V curve diagnosis: Implements I-V scanning and health diagnosis for
PV strings. In this way, potential risks and faults can be detected in time,
improving the plant operation & maintenance (O&M) quality.
Embedded DC and AC SPDs: all-dimensional surge protection
Embedded residual current monitoring unit: Immediately disconnects from the
power grid upon detecting that the residual current exceeds the threshold.
Natural cooling
Free fuse design
Protected to IP65.
Effective design against ground subsidence: The AC terminal block can be
pulled down by up to 50 mm due to the pulling force.
NO TE
The SUN2000 is powered by a dedicated power transformer instead of connecting to low
voltage overhead power lines.
Copyright © Huawei Technologies Co., Ltd.
(B) SUN2000
(E) Power grid
2 Overview
(C) AC combiner box
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