Product Overview

The grid connected photovoltaic grid is a distribution device that connects the photovoltaic power station and the power grid. Its main function is to serve as the boundary point between the photovoltaic power generation system and the power grid. For photovoltaic power strips connected to the grid, metering, protection and other functional devices can also be installed in the grid connected photovoltaic grid. Suitable for household and commercial photovoltaic power stations, the operation mode of the power station is spontaneous self use, surplus electricity grid connection, and full grid connection, which can maximize the protection of the system's safe operation, ensure the safe coordination between the inverter and the municipal power grid, improve the reliability of the slot height system, and optimize the design of the photovoltaic grid connected distribution box. This product has isolation protection, overload protection, short circuit protection, surge grounding protection, overvoltage and undervoltage protection, and white dynamic coincidence after recovery, as well as power generation energy metering.

Characteristics and advantages

1. Power isolation function. Installing a knife switch can cut off one or several lines during maintenance or repair;
2. It has short-circuit protection function. Install a protective wire on the battery string well connection to prevent damage to the circuit safety in case of short-term and long-term overcurrent;
3. Electricity metering, which can be equipped with measuring devices such as electricity meters to facilitate the statistics of the power generation of each battery string;
4. Power on indicator function. Display devices such as phase lights, voltmeters, and ammeters can be installed on the front panel of the distribution box to show the power status inside the box and remind operators to operate safely;
5. Lightning protection: Generally, lightning protection devices are installed at the output port of the distribution cabinet to prevent lightning damage to the photovoltaic power station
6. Island protection function. In the event of an accident, the grid connection point switch can be quickly disconnected to avoid abnormal remote rotation caused by the fault, which may cause harm to personnel and the power grid.

Working and environmental conditions

1. Protection level: IP65
2. Environmental temperature: -25 ℃ ·+55 ℃
3. Environmental humidity: 0-95%, no condensation
4. Altitude: 4000 meters
5. Cooling method: natural cooling
6. Installation method: suspended/ice flat

Main technical parameters