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SUN2000-(100KTL, 110KTL, 125KTL) Series User Manual

This document describes the SUN2000-125KTL-M0,SUN2000-110KTL-M0,SUN2000-100KTL-M0,SUN2000-100KTL-M1 and SUN2000-100KTL-INM0 in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting. BOM number: 01074693, 01074694, 01074695, 01074695-001 and 01074695-002.

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Overview

Overview

Description

SUN2000 solar inverters are grid-tied PV string inverters that convert the DC power generated by PV strings into AC power and feed the power into the power grid.

Characteristics

Smart

  • Ten independent maximum power point tracking (MPPT) circuits and 20 PV string inputs. Flexible configuration of PV strings is supported.
  • 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.

Safe

  • 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.

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 2-4 Networking

(1) PV string

(2) SUN2000

(3) AC combiner box

(4) Transformer station

(5) Power grid

  

The SUN2000-125KTL-M0 is powered by a dedicated power transformer instead of connecting to low-voltage overhead power lines.

Supported Power Grids

  • SUN2000-110KTL-M0, SUN2000-100KTL-M0, SUN2000-100KTL-M1 and SUN2000-100KTL-INM0 solar inverters support the TN-S, TN-C, TN-C-S, TT, and IT power grids.
  • The SUN2000-125KTL-M0 supports only the IT power grid.
Figure 2-5 Supported Power Grids
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Updated: 2019-12-25

Document ID: EDOC1100087908

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