DN3 Series (100-125KTL)

Main characteristics

The DN3 Series Three-Phase Grid-Tied Inverter (100-125KTL) is a high-efficiency outdoor device designed for photovoltaic (PV) power generation systems, featuring the following key attributes:

High Efficiency & Flexibility
● High Conversion Efficiency: Achieves a maximum efficiency of 98.7% and a European efficiency of 98.3%, significantly reducing energy losses.
● 150% DC Overload Capability: Supports up to 150% DC input power overloading, adapting to solar irradiation fluctuations and enhancing system energy yield.
● Wide MPPT Voltage Range: Covers 200-1000V, ensuring compatibility with various module types and optimizing energy capture efficiency.
● Dual MPPT Design: Each MPPT supports two input groups, with a total of four string inputs, enhancing system flexibility and fault tolerance.

Intelligent Features & Compatibility
● Remote Firmware Upgrades: Supports firmware updates via WiFi or RS485, reducing maintenance costs.
● Optional Smart PID Recovery: Automatically repairs potential-induced degradation (PID), extending the lifespan of PV modules.
● Retrofit Compatibility: Designed for upgrading aging systems (Repowering) and supporting future expansion needs.

High Protection & Reliability
● IP66 Protection Rating: Fully sealed, dustproof, and waterproof design, suitable for harsh outdoor environments.
● Multiple Protection Mechanisms: Includes DC insulation monitoring, reverse polarity protection, anti-islanding protection, overcurrent/short-circuit protection, surge protection, and more, ensuring system safety.
● Wide Environmental Adaptability: Operates in temperatures from -30°C to +60°C, humidity 0-100%, and altitudes up to 4000m, meeting extreme climate and high-altitude requirements.

Technical Highlights

● Input Capacity: Maximum DC voltage of 1100V, with a startup voltage as low as 200V, enabling low-light startup.
● Output Capacity: Rated AC power of 100-125kW, compatible with three-phase 220/380V or 230/400V grids, 50/60Hz frequency, and adjustable power factor (0.8 leading to 0.8 lagging).
● Communication & Monitoring: Equipped with an RS485 interface as standard, with optional WiFi support for real-time data monitoring and remote management.

Structure & Certification

● Compact Design: Dimensions of 965×700×355mm and a weight of 86kg, facilitating installation and transportation.
● Transformerless Topology: Utilizes a high-efficiency, lightweight design with fan cooling for improved operational stability.
● International Certifications: Complies with IEC 62116, EN 50549, G99 grid connection standards and holds CE, UKCA safety and EMC certifications, ensuring global market compliance.

This inverter series, with its high reliability, intelligent operation, and broad compatibility, is an ideal solution for commercial, industrial, and large-scale ground-mounted PV power plants, providing an efficient grid-connected solar system solution.