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  • rosehillworks
    replied
    [QUOTE= Those big switch's with the driver are expensive and if you make even little mistake they go. Ask Rosehill
    Matt[/QUOTE]

    You that got wright.! After a few $400 runs Matt was a real budget saver
    start small do it wright and you will not be disappointed

    Leave a comment:


  • Turion
    replied
    I'm going to build the small one first, since I have everything to build it already on my shelf except the Radioshack transformer, which I've ordered and the Stamp. So not much out of pocket expense.

    I figure to build the large one right will cost at least $600.00, and I want to do it right the first time. (That includes a whole spool of wire, but I figure it won't go to waste, since I'm sure I will be building more of these.) Building the small one will give me the experience with how it operates, and won't be as costly if I make some learning mistakes. When I've got it up and running, I'll build the big one. So I'm in no hurry. I'll sit back and learn from the small one before I give the big one a shot. It will also give me a chance to get all the parts in before I start building.

    Thanks again Matt

    David Bowling

    Leave a comment:


  • Matthew Jones
    replied
    Originally posted by Turion View Post
    Matt,
    I have been looking for some good switches for this project. What do you think about these

    If they are a go, I found them here Powerex Result
    David Bowling
    Ya David those will work but you have to get the powerex driver kits for them. And don't fool yourself they'll burn up if you do not set them up right.

    I will have literature to cover the wiring with those switch's,in general.

    But before you run out and buy those you may want to just get a few small relays 50 amp or something to make sure you can get the thing wired up and running. Those big switch's with the driver are expensive and if you make even little mistake they go. Ask Rosehill


    Matt

    Leave a comment:


  • N O G
    replied
    Digit Tesla switch

    Hi there Rosehillworks , Matthew , Bits and others ,
    Nice work there fellas , Keep up the brilliant work . cheers Jason

    Leave a comment:


  • Turion
    replied
    Matt,
    I have been looking for some good switches for this project. What do you think about these



    If they are a go, I found them here Powerex Result


    David Bowling

    Leave a comment:


  • vrand
    replied
    Originally posted by Matthew Jones View Post
    Thats because I haven't given the instructions out yet... Just a shopping list of parts.

    Its all coming.

    Matt
    Thanks Matt, we are all looking forward to it

    Cheers Mike

    Leave a comment:


  • Matthew Jones
    replied
    Thats because I haven't given the instructions out yet... Just a shopping list of parts.

    Its all coming.

    Matt

    Leave a comment:


  • vrand
    replied
    Originally posted by Matthew Jones View Post
    I gave you link to both the transformers I recommend. One is for a large setup one is for a small setup.
    Stop drinking so much coffee and slow down when you read the shopping list.

    NO FERRITE, NO TOROID.... Just plain old iron plate cores, for starters.

    Matt
    Hi Matt, the instructions didn't mention stripping out the wiridings on that 3kw transformer and winding the L1 to L3 coils on it with the 6 AWG square wire.

    How many turns/length of feet of wire are for the L1 to L3 coils?

    Cheers Mike

    Leave a comment:


  • vrand
    replied
    Originally posted by rosehillworks View Post
    This is it 3000 Watts Step Down Voltage Converter Get it disassemble it and rewind it with #6 AWG wire.
    Ah okay, thanks.

    Cheers Mike

    Leave a comment:


  • Matthew Jones
    replied
    Originally posted by vrand View Post
    Thank you William for sharing your research and results

    Matt wrote that there are 2 transformers A & B below?

    A- Transformer. 1 -3 KVA or 1000 to 3000 watts. BIGGER IS BETTER.
    3000 Watts Step Down Voltage Converter

    B- #6 AWG Square magnetic wire at 150 ft, OR #14 awg magnetic wire at 300 ft. Now you can use anything in between the 2 listed wire. But do not go smaller than 14 awg, and DO NOT THINK you can wrap 5 strand of 20 awg together to come up with that size. This a recipe for HEAT and does not work well. You cannot use insulated wire either, this is also a recipe for poor inductance.

    Or you can use A or B?

    If you need both, what do you wrap the 6 AWG square wire on, iron core or ferrite core? Toroidal core for high frequency? What is the frequency of the operation of switching?

    Cheers Mike

    I gave you link to both the transformers I recommend. One is for a large setup one is for a small setup.
    Stop drinking so much coffee and slow down when you read the shopping list.

    NO FERRITE, NO TOROID.... Just plain old iron plate cores, for starters.

    Matt

    Leave a comment:


  • rosehillworks
    replied
    Originally posted by vrand View Post
    What type of core do you use for L1, L2 & L3?

    Cheers Mike
    This is it 3000 Watts Step Down Voltage Converter Get it disassemble it and rewind it with #6 AWG wire.
    Last edited by rosehillworks; 09-11-2011, 07:21 PM.

    Leave a comment:


  • vrand
    replied
    Originally posted by rosehillworks View Post
    I used a 3 KVA 3000 watt transformer with an iron core. Use the 6 AWG square wire on L1 L2 and L3. The transformer is the one that Matt has posted in his list
    What type of core do you use for L1, L2 & L3?

    Cheers Mike

    Leave a comment:


  • rosehillworks
    replied
    Originally posted by vrand View Post
    Thank you William for sharing your research and results

    Matt wrote that there are 2 transformers A & B below?

    A- Transformer. 1 -3 KVA or 1000 to 3000 watts. BIGGER IS BETTER.
    3000 Watts Step Down Voltage Converter

    B- #6 AWG Square magnetic wire at 150 ft, OR #14 awg magnetic wire at 300 ft. Now you can use anything in between the 2 listed wire. But do not go smaller than 14 awg, and DO NOT THINK you can wrap 5 strand of 20 awg together to come up with that size. This a recipe for HEAT and does not work well. You cannot use insulated wire either, this is also a recipe for poor inductance.

    Or you can use A or B?


    If you need both, what do you wrap the 6 AWG square wire on, iron core or ferrite core? Toroidal core for high frequency? What is the frequency of the operation of switching?

    Cheers Mike
    I used a 3 KVA 3000 watt transformer with an iron core. Use the 6 AWG square wire on L1 L2 and L3. The transformer is the one that Matt has posted in his list
    Last edited by rosehillworks; 09-11-2011, 06:23 PM.

    Leave a comment:


  • vrand
    replied
    Originally posted by rosehillworks View Post
    Mike
    That build is mine. The out put is 3000watts. Matt was vary kind in helping me getting it to work!!! I hope to post some test soon. I did not used the right wire so I have to wind it again with #6 transformer wire. Matt is right about the heat in the transformer so use what he said to use
    [ATTACH]8950[/ATTACH]
    Thank you William for sharing your research and results

    Matt wrote that there are 2 transformers A & B below?

    A- Transformer. 1 -3 KVA or 1000 to 3000 watts. BIGGER IS BETTER.
    3000 Watts Step Down Voltage Converter

    B- #6 AWG Square magnetic wire at 150 ft, OR #14 awg magnetic wire at 300 ft. Now you can use anything in between the 2 listed wire. But do not go smaller than 14 awg, and DO NOT THINK you can wrap 5 strand of 20 awg together to come up with that size. This a recipe for HEAT and does not work well. You cannot use insulated wire either, this is also a recipe for poor inductance.

    Or you can use A or B?

    If you need both, what do you wrap the 6 AWG square wire on, iron core or ferrite core? Toroidal core for high frequency? What is the frequency of the operation of switching?

    Cheers Mike

    Leave a comment:


  • rosehillworks
    replied
    Thanks to Matt it works

    Mike
    That build is mine. The out put is 3000watts. Matt was vary kind in helping me getting it to work!!! I hope to post some test soon. I did not used the right wire so I have to wind it again with #6 transformer wire. Matt is right about the heat in the transformer so use what he said to use.

    The caps I used are 18,000 uf x 7=126000uf
    Click image for larger version

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    Last edited by rosehillworks; 09-11-2011, 05:46 PM.

    Leave a comment:

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