Blatherwick
Members
-
Joined
-
Last visited
-
Sorry, 9 panels (3 parallel sets of 3 in series). So each parallel row capacity is 120V @ 10A
-
Hi I hope someone can help. I have a solar installation comprising 3x3 Canadian 360w panels, 5kva hybrid inverter and 2x4.8 Li batteries. I have noticed that the fuses in line from the panels and the isolator are rated 30A. The isolator is an AC switch. The fuses and the isolator get so hot the the container has started to melt. I called the installer and he replaces the fuse holders and isolator like for like. This has not solved the problem. I read on an overseas site that there is a formula for determining the required fuse rating. Fuse rating = (short circuit current x 1.56) / temperature coefficient. When I apply this formula I get a result of 50A. The s/c current for each panel is 9.5A. Three in series should be about 30A. The temperature coefficient for the place where the panels are mounted is 0.95. I would like to know if this method of determining the fuse rating is correct for this type of installation. Thank you very much.