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Photovoltaic small popular science, spring and summer use of photovoltaic system, these knowledge you need to know

Release Time:

2020-05-21 13:41

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Spring has arrived, for photovoltaic users, power generation peak is coming, today to talk with you about some of the photovoltaic system installation, operation and maintenance of common sense.

1. Will the shade of the house, leaves and even bird droppings on the PV modules affect the power generation system?

A: The shielded photovoltaic cell will be used as a load to consume the energy generated by other unshielded cells. At this time, the shielded cells will get hot and easily form the hot spot effect. Thus reduce the photovoltaic system power generation, or even burn photovoltaic modules.

2. In rainy days or haze, will the pv module work? Will there be power shortages or blackouts?

A: Solar irradiance is low on cloudy, rainy or hazy days, but photovoltaic modules still generate power in low light. As long as the working state of the photovoltaic module reaches the starting condition of the inverter, the photovoltaic power generation system will work normally. When the distributed grid-connected photovoltaic system is not working, the load is automatically powered by the grid, and there is no power shortage or power outage problem.

3. Do WE need to disconnect the PHOTOVOLTAIC power generation system during thunderstorms?

A: Distributed pv systems are equipped with lightning protection, so they do not need to be disconnected. For safety, you are advised to disconnect the circuit breaker of the busbar and cut off the circuit connection with the PHOTOVOLTAIC module to avoid damage caused by direct lightning strike failure of the lightning protection module. Check the performance of the SURGE protection module in a timely manner to avoid damage caused by the surge protection module failure.

4. Can the solar controller get wet?

A: The solar street lamp controller has IP67 waterproof grade. It is not recommended to install the home controller and reverse control integrated machine outdoors. If you have special requirements, you need to install a protective outer box to prevent rain and water.

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