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Thread: Backup Power

  1. #1
    Members Eleven11's Avatar
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    Backup Power

    I found an 800watt inverter at Lowes

    http://www.lowes.com/pd_328619-89606-PC ... facetInfo=

    I have a few 12 volt tractor batteries to use also. I'm working on designing a circuit that would switch power automatically when either I have a power loss or the battery is at full charge.

    I'm working on a circuit design but I'm just curious if anyone has wiring diagrams already for something like this.
    Nothin to it but to do it yourself

  2. #2
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    Re: Backup Power

    I've also been keen to sort out a suitable backup arrangement and have adapted a circuit diagram credited to Elisamuel Sierra aka 'samtheman' I found whilst searching the net a while back.

    Note that I've used 240v, not 110v to match Australian mains power.

    The schematic was created using TinyCAD - a small free open source software package that is easy to use. So that any amendments can be made to the linked document a PDF version is located at: http://www.grandporc.com.au/ap/AP_batte ... ch_box.pdf

    The switch box is located very close to the other gear so that cable lengths are kept as short as possible (longer cable runs = larger cable to carry the current).

    [attachment=0:3dohldjg]240v backup switch box.JPG[/attachment:3dohldjg]
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    Marky Mark

  3. #3
    Members Eleven11's Avatar
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    Re: Backup Power

    Looks very good.

    Thanks a lot !
    Nothin to it but to do it yourself

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