What is involved in going down the Inverter route?

Discussion in 'Tech/Mech General' started by emmitdb, Apr 18, 2016.

  1. emmitdb

    emmitdb Funster

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    Hi All,

    I know that there are some knowledgable types on here that have not only done the research but have actually performed the task.

    What is involved in, say, having an Inverter with the guts to do most reasonable things to allow one to go 'Off Line'. One that is plumbed in (to mix my power sources) to take over when the leccky from the tap is not available.
    I appreciate the need for sufficient battery banks and the solar to go with that but, how much is actually involved in providing the various conections to enable an on board Inverter to allow one to stay away from the mains.
    Is it a big job with many hours of work ( I couldn't envisage doing it myself) so Hrs. Means £'s.

    Any workings out on the back of a fag packet, gratefully received.
     
  2. Lenny HB

    Lenny HB Funster

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    In the resources section there is an article by @Techno describing how to wire an inverter with auto mains switching. I did something similar myself and if did take a considerable time I wouldn't wanted to be paying someone to do it. The amount of labour involved with depends how easy it is to get as existing wiring and how the van has been wired. In my case I could only wire 2 of the 4 sockets to change over but I did add a couple of sockets in the garage for charging the bikes.
     
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  3. eddievanbitz

    eddievanbitz Trader - Funster

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    For a good quality 2000 watt modified sine wave inverter fitted, adjacent to your batteries, with good quality Mega fuses installed on decent quality, correctly made battery cables, remote switched on and off, with automatic safety switching between incoming mains and inverted 220vac, wired with an RCD on the inverted output to all of your 13 amp sockets, you should be looking at £799 installed, with 13 amp sockets available when the inverter is switched on

    Of course, should you choose an installation Company that gives Funsters a discount (y) you could save 10% on that ;)
     
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  4. Techno

    Techno Funster Life Member

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    [​IMG]
     
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  5. Techno

    Techno Funster Life Member

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  6. funflair

    funflair Funster Life Member

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    I would think that Eddies offer is pretty good as there is a fair bit of messing about and Knowledge involved, you would have to be a die hard DIY'r to do it yourself. I would be careful to make sure that the Modified sine wave inverter will run everything you want as ours did'nt but there again ours was rubbish and Eddie did say "a good quality".

    Martin
     
  7. eddievanbitz

    eddievanbitz Trader - Funster

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    On our "installed" prices we take an average installation time, add up the SSP of the components and arrive at a "fitted" price

    In this case we calculate that it is two installers about four hours, with the longest bit establishing which sockets are on which wires ensuring that other 220VAC appliances such as charging units, water heaters, heating and fridges are not on the Inverted AC supply
     
  8. ianthebuilder

    ianthebuilder Funster

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    You lost me at. Hi all !!!
     
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  9. Boringfrog

    Boringfrog Funster

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    Any links to the mega fuses? Thanks.
     
  10. Techno

    Techno Funster Life Member

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    Last edited: Apr 19, 2016
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  11. emmitdb

    emmitdb Funster

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    I've actually seen the technology in the garage of Andy's van.
    Saw a similar setup once on an episode of Star Trek. Only on the TV that one wasn't as complex.
    Oh! and thanks for the fag packet.
     
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  12. Lenny HB

    Lenny HB Funster

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    Seems a very reasonable price when I remember the time it took to trace and rewire the mains in my van.
     
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  13. Reallyretired

    Reallyretired Funster

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    This is the type of fuse you need. I have a double fuse box but can't find one for sale anywhere now.
    $(KGrHqN,!ikE5esVbRFVBOf)UqZNWw~~60_1.JPG
    Don't forget you will need a big fuse like this between the batteries as well, I only have two batteries with a 300A fuse one the inverter side and a 150A fuse between the two batteries.

    You can simplify the wiring for the automatic changeover by using a combined charger and inverter like this inexpensive one,http://www.ebay.co.uk/itm/2000w-400...837339?hash=item2ee33bb7db:g:mzwAAOSweW5VMmlq, and simply turn off your inbuilt charger. This will charge your batteries when you have mains and automatically switch to inverter if the mains fails or is not connected.
     
  14. colmorangie

    colmorangie Funster

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    I cut the wire 6" in from the EHU entry and put a single socket on the EHU side and a plug on the other end. Then ran a small extension from the inventor which is under the same seat to the socket.
    So if we're on EHU (rarely) you plug it in to that, if your not and you want 240v plug it in the inventor this would power up every thing however for the sake of the batteries I make sure the electric heater, water, fridge and charger are off or on gas so it only makes the microwave, and sockets live.
    I also purchased a socket night light and plugged it in to a obviouse socket so when it's switched on the light lights up. As on as the second time we used it we forgot to switch it off and the inventor flattened the battery.
    This was cheap and quick 1 hour work and the invertor from the old van o and 70p for the plug light thing...
    So am I missing something or am I set up in a dangerous way ?
     
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