Recent content by molle

Hi, I am an solar installer and I have a costumer with a DELTA  RPI M50A 50 kw inverter divided on 10 strings installed in the spring 2019. The RCD has been tripping alot. At first we changed it from a 30 am to a 300 ma and it got a bit better. The pv array is placed on a farm bouilding on a...

I made an order from a manufactorer and more then half of the panels had four small brown spots on each cell and it looks almost exactly the same on every panel that have this. The spots are very small and brownish, and they sit at almost exactly the same places on all cells and on all these...