ok been looking at this for some time did the niceic course not much cop so did the c+g course a lot better .Now looking to install one on my roof.
1. need a good supplier of the pv array kits and names of reputable solar manufacturs
2 tools required do i need to spend 2k on a all singing...
Evening all
I work for a firm in Kent installing PV systems on mainly domestic properties.
We have just finished installing a 1.8kw system.
The problem is that there are major issues with shading from the neighbours roof. The sun only comes out from behind the roof fully at around 3 o'clock...
Chaps, day after tomorrow I need to do my first insulation test on a PV array.
It's roof mounted & class II, so the frame is not bonded.
I use a Megger Tester. Am I right in thinking I plug the whole string togethor then put one of the tester's probes into the DC positive plug and the other on...
Hi all,
Do you have any thoughts on hooking a PV array's inverter onto an existing circuit, say a ring final? Obvioulsy as long as the cable was good (2.5mm for instance) I wonder what issues there are with doing that..
Cheers for any replies!
Guys
This might help you!!!! if the file attaches with the formulas!!!!
Just enter the Isc and Voc and it will calculate the final Isc at the correct radiance.
Let me know if it works.
The file won't attach for some reason ( bl---dy computers.
I will send it via your email If you PM me with...
I have my MCS assesment booked in 3 days and I need some help with the testing on the DC side, We did not perform the tests and I need some rough figures for Voc and Isc string test and also the Array insulation Resistance Pos- Earth and Neg-Earth.
Any help would be much appreciated
Thanks Dan
I have my MCS assesment booked in 3 days and I need some help with the testing on the DC side, We did not perform the tests and I need some rough figures for Voc and Isc string test and also the Array insulation Resistance Pos- Earth and Neg-Earth.
Any help would be much appreciated
Thanks Dan
I am slightly unsure about some of the tests on the DC side of my PV installation. I can fill out Voc (stc) and measure it in the string test too. Insulation resistance is no problem. My current short circuit string test Isc reads 0.99A. This seems low to me, any ideas? The DTi guide also gives...
Hey there, watch out - newbie here :). All I really want is a nice, compact array of switches that I can mount on my tv wall mount to be able to individually power the different devices (tv, ps3, computer, etc). Four switches would be ok but 6 preferable (so I have two spare). All I can find is...
Hello,
I'm new to DIY electronics and I would be EXTREMELY grateful if someone could help me by answering the following:
1. I would like to set up a 17 x 16 bulb LED array on a piece of Veroboard. The bulbs are 5mm. 204 red (655nm) and 68 Blue (485nm). This will eventually be a 14 Watt, 120...
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