tag:blogger.com,1999:blog-6528099731026138697.post4839769606132807318..comments2023-07-20T07:19:02.093-07:00Comments on CelticSolar: Solar Install: Do I Need Fuses?CelticSolarhttp://www.blogger.com/profile/14838071441335859131noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6528099731026138697.post-27226598137142575362009-01-10T19:45:00.000-08:002009-01-10T19:45:00.000-08:00I must reiterate that I am not a solar professiona...I must reiterate that I am not a solar professional. So my reply here is just some guy sitting on the next barstool sketching on the back of a napkin. <BR/><BR/>Given: <BR/> n is the Number of Strings (n)<BR/> Module Isc = 1.1 A<BR/> Module Series Fuse Rating = 10 A<BR/><BR/> I fault = (n-1) * 1.25 * Isc <BR/><BR/>Find the max integer value of n such that: <BR/> Module Series Fuse Rating > I fault<BR/><BR/>Calculations: <BR/><BR/> Module Series Fuse Rating > I fault<BR/> 10 > (n-1) * 1.25 * Isc<BR/> 10 > (n-1) * 1.25 * 1.1<BR/> 10 > (n-1) * 1.375<BR/> 7.27 > (n-1) <BR/> 8.27 > n<BR/> n = 8<BR/><BR/>The max integer value for n that is less than 8.27 is 8.<BR/><BR/>Wow, 8 strings. TF scores really well here. I would certainly have this double checked.CelticSolarhttps://www.blogger.com/profile/14838071441335859131noreply@blogger.comtag:blogger.com,1999:blog-6528099731026138697.post-69703000886633634912009-01-09T16:28:00.000-08:002009-01-09T16:28:00.000-08:00If I use the thin film PV modules with Limiting Re...If I use the thin film PV modules with Limiting Reverse Current=2A, Module Series fuse rating=10A in my pv system, What is the max number of parallel strings? the Isc is about 1.1A for the TF module.Anonymousnoreply@blogger.com