For household low-power grid-connected inverters, the output current is small, generally less than 80A current models (within 50KW), you can directly use a DC anti-reverse current meter, the inverter AC output terminal wiring is directly introduced into the meter, and. . For household low-power grid-connected inverters, the output current is small, generally less than 80A current models (within 50KW), you can directly use a DC anti-reverse current meter, the inverter AC output terminal wiring is directly introduced into the meter, and. . As the "heart" of a PV system, the inverter not only converts energy but also needs to address two critical issues: How to prevent reverse power flow to ensure grid safety? How to maximize power consumption benefits through mode selection? Today, we'll break down these two core knowledge points to. . Systems with anti-backflow functionality can adjust the inverter's output to ensure that the electricity generated is fully consumed by local loads, preventing excess power from entering the grid. Why Install Anti-Backflow? The main reasons for installing anti-backflow include: 1. Grid Policy. . Photovoltaic inverter backflow prevention refers to a technical measure in a photovoltaic power generation system to prevent the power generated by the photovoltaic system from flowing back into the power grid. Depending on the application, different inverter types — grid-tie inverters, off-grid inverters, and microinverters — offer distinct advantages for various scenarios. This feature is particularly important in grid-tied systems, where excess energy. . In the power supply and distribution system, the distribution transformer generally supplies power to the load, and the current flows from the grid side to the load, which is called forward current.