Summary It's time to reveal the answer for everyone. I believe this question has bothered many people. Why can't the solar panel reach the standard current with the universal ammeter?
It's time to reveal the answer for everyone. I believe this question has bothered many people. Why can't the solar panel reach the standard current with the universal ammeter?
The reason for this is very simple, I believe that you will suddenly understand after reading it. In fact, the open circuit current is a parameter to measure the quality of solar cells. This parameter can only be measured with a module tester, and the universal meter is capable of loading.
So this parameter is the working current, and the solar panel has test conditions, that is, 1000W/M^2 illuminance, temperature 25 degrees, atmospheric transparency AM1.5, the three conditions are indispensable. Our solar panels are tested under standard conditions, which is a theoretical concept. Solar panels are based on the regions where buyers use solar panels, and the weather and pollution levels will be moderately reduced.
More generally speaking, when buying a mobile phone, the specification says that it has 128G of memory, but in fact it may only be 118G. It cannot be said that it has insufficient memory and was deceived. That is because the mobile phone is loaded with software and loaded. The reason is the same as that of testing solar panel.