The Grid tie solar power system is composed of a square array of solar cells, solar inverters, grid-connected distribution boxes, photovoltaic brackets, and electric meters.

1. Before maintaining the system, make sure that all parts of the system are well connected;
2. If the photovoltaic panel and the inverter are well connected, the uppermost indicator on the front panel of the inverter will be green and flashing; otherwise, if the connection is not good, the staff needs to use a universal meter to check whether there is voltage at the output terminal of the solar panel and check the photovoltaic. Whether the component connection line is open, etc.;
3. If the inverter and the electric meter are connected well, the bottom indicator on the front panel of the inverter is green; otherwise, if it is not connected, the staff needs to use a universal meter to check whether there is voltage at the output terminal of the inverter and check the AC line Whether it is open, etc.;
4. Whether the connection line of the power distribution box of the power distribution cabinet is loose and the cabinet contains air switch, anti-surge protector and other devices, to ensure that its function is normal and the connection is intact;
5. Turn on the mains control switch and make sure it is connected to the inverter;
6. After the above inspections are correct, turn on the inverter's DC input and bypass input air switches. At this time, the inverter starts, the inverter's LCD screen and indicator light will turn on, and then turn on the AC output switch.
7. The inverter is an intelligent instrument, and many of its functions are automatically controlled and no human operation is allowed.