It is normal for the battery chip to break because it is fragile and can easily break if not well packaged during transportation. Another point is that the operator's operation during welding may cause cracking, which makes the scale more likely to break during transportation. If the above two conditions are eliminated and the debris is left alone, it may be the removal rate of the photovoltaic strip or cell inconsistency that is causing debris to form.
Is a five kilowatt inverter suitable for producing 3 kilowatts of photovoltaic power?
(1) 300 KM times 8H
(2 ) 2M^2×16 %×1000W
——————————=2A
160V
(3) Li Ming discovered that his mother always sharpened her knife before cutting meat. The goal is to reduce the stress area and increase the pressure. In summer, after Li Ming took his favorite "Coke" out of the refrigerator, he quicklyuve a layer of small water droplets appearing on the wall of the Coke bottle. The small water droplets were formed by liquefaction.
(4) What other phenomena related to physics knowledge can you find in the kitchen? Give an example (necessary to write the name of the phenomenon or kitchen utensils, as well as the physics involved):
The pattern on the knife handle increases friction
All First, make sure the system is an on-grid system or an off-grid system.
The inverter for the off-grid system is selected based on the load. It depends on the capacity and characteristics of the load. If the load is 5 kW, you should choose at least a 5 kW inverter. Not required. Module power; The grid-connected system inverter is selected according to the module capacity, which is generally equivalent to the module capacity.For example, for a 3 kW module, choose a 3 kW grid connected inverter. The grid-connected system uses 3000W components and a 5000W inverter. As long as the configuration is reasonable, there will be no problems in normal operation. However, the inverter is not operating at full capacity, which is a bit excessive.
Grid-connected system refers to a system that relies on energy from the grid to produce electricity. This system must be connected to the network. Then the grid-connected inverter will detect the system's electrical performance parameters. network, sync with them, then connect to the network.
An off-grid system is one that does not rely on grid energy to produce electricity. This system cannot be connected to the grid and generate its own electricity for charging. It is usually found in remote areas, areas without a power gridor without small photovoltaic products, such as solar flashlights.