Huawei SUN2000 Series User Manual page 15

SUN2000-(100KTL, 110KTL, 115KTL)-M2
User Manual
●
●
●
●
Safe
●
●
Networking
SUN2000 solar inverters apply to grid-tied systems of large-scale PV plants and
commercial distributed grid-tied systems. Typically, a grid-tied PV system consists
of the PV string, solar inverter, AC combiner box, and transformer station.
Figure 2-3 Networking
(1) PV string
(4) Transformer station
Supported Power Grids
SUN2000-115KTL-M2, SUN2000-110KTL-M2, SUN2000-100KTL-M2, and
SUN2000-100KTL-INM2 solar inverters support the TN-S, TN-C, TN-C-S, TT, and IT
power grids.
Issue 02 (2022-06-30)
Smart PV module self-learning: Automatically detects PV module failures,
helping rectify faults. Optimizes the working mode to obtain the optimal
working mode of the system.
Smart air cooling: Adjusts the fan speed based on the ambient temperature
and load to ensure the service life of fans and avoid frequent maintenance.
MBUS networking: Uses the existing power line for communication and does
not require additional communications cable, which reduces the 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 surge protection devices (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.
NO TE
In a non-low-voltage grid-connected scenario, the SUN2000-115KTL-M2, SUN2000-100KTL-
M2, and SUN2000-100KTL-INM2 need to connect to an isolation transformer and avoid
overhead cabling.
Copyright © Huawei Technologies Co., Ltd.
(2) SUN2000
(5) Power grid
2 Overview
(3) AC combiner box
-
9