A photovoltaic (PV) grid-connected cabinet is a power distribution device used at the grid connection point of a PV power generation system (between the inverter and the grid). It connects the PV power generation system and the power grid, protecting and measuring the total PV power generation, facilitating fault diagnosis and management, and improving the safety and economic efficiency of the power generation system.

This series of products is specifically designed for PV grid connection. The products feature multiple protection functions, including undervoltage detection tripping, overvoltage detection closing, overcurrent protection, overvoltage protection, islanding protection, reverse current protection, harmonic mitigation, and reactive power compensation. They also display the operating parameters and status indicators of the PV power generation system. Used in conjunction with a PV grid-connected inverter, they form a complete PV power generation system solution.

For large-scale PV grid-connected power generation systems, to reduce the connection lines between the PV grid-connected inverter and the grid-connected cabinet, and to facilitate maintenance and improve reliability, a DC combiner device is generally required between the PV grid-connected inverter and the grid-connected cabinet.

To meet this requirement, Im has specially designed a system that can be used with photovoltaic inverters to form a complete photovoltaic power generation solution. Using a combiner box, users can combine the outputs of a certain number of grid-connected inverters through a circuit breaker and a protection device, based on the rated input current and voltage of the AC grid-connected box, facilitating the connection of downstream grid-connected cabinets.

This product is mainly used in grid-connected lines for distributed photovoltaic systems ranging from 100kW to 1MW.

Product Features

**Safe:** Meets ETL, UL, CE, CSA, and IEC certification standards.

**Intelligent:** Enables remote monitoring of the main circuit breaker's switch status and remote operation of the circuit breaker's opening and closing functions.

**Reliable:** The main circuit uses a fully enclosed, visualized copper busbar design.

**Safe:** Features multiple protection functions including undervoltage tripping, overvoltage closing, islanding protection, and online power monitoring.

**Flexible:** Can be designed with multiple input channels based on the number of AC (inverter) inputs to address specific needs.

**Safe:** Can be used with photovoltaic grid-connected quality calibration devices to address abnormal power factors on-site. Optional intelligent capacitors, SVG, and APF products can be added for targeted treatment of on-site power issues (harmonics, power factor, etc.) to ensure successful acceptance testing.

**Convenient:** Reserves a fixed location for the local power supply transformer, adaptable to various incoming line methods, and available in a split-type configuration.

**Easy to Use:** Standard configuration includes a main circuit breaker port with load control and upstream switch control, easily meeting the acceptance requirements of power supply bureaus across various regions.