The working principle of the PV grid-connection box involves using an inverter to convert the direct current (DC) generated by photovoltaic modules into alternating current (AC) that matches the grid's voltage, frequency, and phase, and then connecting it to the grid via a circuit breaker. During grid connection, the unit monitors grid conditions in real time, ensuring the system can rapidly disconnect in the event of grid anomalies to safeguard equipment and personnel. Additionally, the PV grid-connection box features data acquisition and remote monitoring capabilities, allowing users to track the system's operating status in real time.
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