② Due to the local grid connection conditions of the photovoltaic power station, multiple single-phase inverters are connected to the same live line, and the grid''s accommodation capacity is insufficient, causing the grid voltage to rise too high, and the inverter reports a grid overvoltage inverter failure.
Grid Faults: Power grid irregularities, such as voltage surges, frequency fluctuations, or grid faults, can adversely affect solar inverters. The inverter’s protective mechanisms may activate, causing it to shut down temporarily or operate at a reduced capacity until the grid issues are resolved.
Common causes and solutions for grid loss faults reported by the inverter are as follows: Check whether the nearby electrical equipment can work. If the electrical equipment cannot work, it may be a power grid outage. Use an electric pen to test whether there is power at the incoming line on the grid side of the grid-connected box.
If the grid voltage exceeds the voltage protection range of the overvoltage and undervoltage protector, the overvoltage and undervoltage protector will disconnect, cutting off the connection between the inverter and the grid, causing the inverter to report an inverter failure of grid loss.
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