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input

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  1. J

    Trying to convert 28VAC input to 120/240VAC or 9/36VDC....

    I have a query from a customer who is looking to buy a 5W product from me which runs on 120/240VAC or 9/36VDC. The problem is, they are in an isolated location where they only have a 28VAC power supply. I have looked around the web and cannot find any obvious solutions, does anyone know of any...
  2. truckster

    Led drivers brain fart

    Am I having a brain fart?? I fitted 4no. two gang sockets fed from a 5A fuse in a shop for display lighting. The shop fitters arrived some time later and fitted a bunch of LED lights. Each driver states input as 1.2 amps and there are sixteen of them?? However each driver is only supplying...
  3. Resu

    Duplicate Easycert EICRs

    Hi all, was wondering if anyone could tell me if it's possible to duplicate an entire EICR on the app. We have a scheme of 20 houses to do all exactly the same electrically and this would save a bit of time (worth mentioning we obviously won't be using the same values for each property, it's...
  4. P

    Mystery input to CU

    I looked at a small semi yesterday and there was some very dodgy wiring.The pictures explain it better but before the electrician comes later, i'm curious as to what someone has done.Have they tapped off next door? (Sorry about the text on pics, it was written so the landlord would understand!)
  5. T

    Post Input Bug

    Not an electrical question but I am running windows 7 with IE10 and I am unable to put a 'return' into posts. When I press the 'enter' button nothing happens. Has anyone else notice the same issue?
  6. R

    generation meter installation

    hi, at the risk of sounding incredibly green i have my first pv install tomorrow and noticed when loading the van that the generation meter has one input a line nuetral earth connection but only one input. i have two strings to connect. will i be okay connecting both unequal strings to one input...
  7. Energetic

    MoneySupermarket is after Industry Input...

    I recently emailed MoneySupermarket.com as I mentioned on another thread, about how out of date their PV page was. To their credit I got an email back saying they were interested in updating things and getting input from the industry in how best to promote energy saving and renewables. They...
  8. W

    I would appreciate your input lads

    Alright lads, Can anyone see a problem with this. Excuse the drawing, im fairly rubbish at clearly drawing things and have most definitely to all you technical chaps out there, murdered the drawing to bits, but im just trying to get scope around the general idea. Which i think is clear enough...
  9. P

    are both my trackers working?

    I have split roofs and an Sma 3600 TL inverter and have only just looked at it properly. When the on screen display switches between input A & B, input B registers 0v and 0A although the power figure changes. (input A registers about 360v) It is cloudy at the moment and no sun in the sky. Is...
  10. F

    High Input Voltage of 255 Causing Inverter to give Error

    Installed a 3.92kW System today. Using a 4000-TL SMA Inverter. The inverter gave a grid voltage error. After checking the input voltage it was at 255 which is definatley too high for the SMA Inverter. The house is only a few doors away from a sub station which may be causing this. What are...
  11. C

    Will this work? Input appreciated

    Can this be done? Hi ALthough not good practice, is this acceptable? Its one of my first jobs! double Cooker on 6mm 4.6Kw = 20 amp plus 5amp as it has a socket = 25amp A spur from cooker to SFCU 5amp then down to fridge at 400w = 1.8amps a spur from that SFCU upto another 5amp SFU to Feed...
  12. T

    Yield Loss from low minimum dc input voltage

    Hi All - last post today. Can someone explain yield loss to me? Run a config through sunny design which suggests yield loss. It is suggesting the min volt will not be acheived for the extremety of the cell temp range. When I do standard Voc of array, it exceeds min dc input voltage and start...
  13. D

    Aurora 3600 inverter giving "E013" Wrong input setting

    Chaps, I've just installed our first Power One Aurora 3600 inverter with two strings (7 & 8 Romag 235's). When I turn everything on the inverter gives an error code 013. The manual has this down as "Wrong input setting". I guess it thinks there should be 1 not 2 strings. Have been looking...
  14. W

    String fuses?

    Hi I'm getting confused about the use of string fuses. In the dti guide 4 or more strings in parallel require string fuses to be used in the design of a system. In certain sma inverters, for example the tri power tl8000 they already have string fuses built in. There are 4 d/c inputs on...
  15. SolarCity

    10000TL inverter - 3 phase output and number of strings

    Does anyone have any experience of the SMA 10000TL inverter? I was wondering whether the number of strings had an effect on the 3 phase output of the inverter. For example, does the array need to be arranged as 3 seperate strings?
  16. dansk

    Isc and Max Input Current on Inverter

    Im getting myself all confused and want some help. Inverter is 20A max input current. I have the following: Isc 5.72 per string x 3 = 17.16 for the array at stc, inverter is is 20A max DC input, but when i apply 1.25 factor this gives 21.45, so is this inverter not the correct one? or...
  17. D

    National Work/Advertising

    Hi Chaps, I m just about to climb on board a national LTD company's band wagon and after some advice, any ways, what i get / they get I am getting LOCAL advertising 100,000 leaflet drops a month ,National Advertising in a Daily Newspaper alongside the Main Companys advert! 3 days a...
  18. E

    Need some input (Mods lenny et)

    Posted to a question about Bs7671 in pdf format earlier this week, and have got it now along with some other bits n bobs, but have recieved so much interest it would be easier if i hosted it on fileshack or similar, and posted link here is this a problem? Also considering setting up own...
  19. O

    Single phase connection from three phase input

    Hi all, I have a three phase mains input in my house. I suppose the builder installed this to cater for high kW power usage. However, I do not have any need for such high power input. Is it allowable to use only one of the three phase inputs L1, L2 and L3 since all my equipment in the house...
  20. M

    247.9 volt in my home, 6 laptop chargers later?

    Hi im new to this forum, thanks for accepting me. can anybody help please? i have gone through 6 laptop chargers in the last 9 months, i just mesured the voltage and peak is 247.9. will a surge protector keep it at 240v ???? or is there something i can buy to keep it at 240? because the...

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