Working principle of anti Refux current: install an anti reverse current meter or current sensor at the parallel node. When it detects that there is current flowing to the grid, it sends a signal to the inverter through 485 communication. The inverter reduces the output power until the reverse output current is zero, so as to realize the anti reverse current function. According to the different voltage levels of the system, the photovoltaic system can be divided into single-phase anti reverse current system and three-phase anti reverse current system.

Jesfer's senior engineers focus on grid tied anti Refux current design for more than 10 years, and have installed many types of household photovoltaic on-grid systems in China, which have been praised and recognized by customers.