What are the common faults of rooftop photovoltaic power plants and solution?

There are more and more rooftop photovoltaic power stations being built. There are household roofs and industrial and commercial roofs. No matter what kind of rooftop photovoltaic power station, it is likely to encounter various problems during the 25-year service period. Hebei Shuobiao New Energy I have summarized several common faults and solutions for these faults, hoping to help you.

Industrial and commercial roof photovoltaic power station support

1. There is a problem with the inverter in the photovoltaic power station system

First of all, it is necessary to identify the type of inverter problems. Common centralized inverter faults include an inverter circuit board, detection system circuit, a power output circuit, communication safety circuit, etc.

Solution: Disconnect the flow terminal and AC terminal directly, stop working for more than 30 minutes, and reconnect to use. If the problem can be solved, then you can continue to use it. If the problem is not solved, you need to find professional inverter maintenance personnel for maintenance.

2. there is a leakage problem

Solution: Remove the input of the photovoltaic power station, and check the peripheral AC grid; both the DC terminal and the AC terminal are disconnected, and the inverter power supply is cut off for more than 30 minutes. If the problem is solved, you can continue to use it. If not, find a professional after-sales service personnel overhaul.

3. The problem of power grid error in the rooftop photovoltaic power station

Solution: Use a multimeter to measure the voltage and frequency of the power grid; if it exceeds, wait for the power grid to return to normal; if the power grid is normal, the inverter has detected a circuit board power generation failure; please disconnect all DC and AC terminals, and let the inverter shut down Power on for more than 30 minutes; if it can be restored to use, if not, contact the after-sales technical engineer.