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  1. B

    Can't find the transformer I need so need to build my own

    I am dead serious and am not a troll. I hope you guys will learn that along the way. I'll answer your questions. 1. noted, but I am aiming at .5C 2. understood. using a full bridge rectifier or similar would be a later step in the design. 3. I am going to use a 3 phase source to help with...
  2. B

    Can't find the transformer I need so need to build my own

    ok, let me then start with the oversizing aspect. rather than calculating, which can be dificult for many of us, certainly me, how about we simply make the core huge? But then again the questions remains, how to source the correct core material? As far as I understood it at low frequencies as...
  3. B

    Can't find the transformer I need so need to build my own

    and let me also state that I am willing to take things very slowly as to not endanger my self or anyone around the contraption I am making. Let's take this project a bit more serous/ How does one do it while staying safe?
  4. B

    Can't find the transformer I need so need to build my own

    I meant 230VAC 50HZ to 3.6VAC at tremendous amps
  5. B

    Can't find the transformer I need so need to build my own

    And then again gang, do not we all need a good mains transformer? I mean why is this not something a standard hanging in our mains breaker panel to begin with?
  6. B

    Can't find the transformer I need so need to build my own

    if anything I can take the inner parts and use it to step up and down from if needed. but then at least the source will be well thought of, not something I am doing at the moment
  7. B

    Can't find the transformer I need so need to build my own

    I seem to be changing my mind ;( if you can direct me to a 230VAC 50HZ -> 3.65VAC (50HZ) transformer I will conciser buying it. If not like more than 500 euros
  8. B

    Can't find the transformer I need so need to build my own

    yes understood. I will once again admit I am way out of my league here and I have already stated to mean no disrespect. Just please allow some time for me to get a grasp. Given this that seems to mean there is no way for me to actually test the Lifepo4 cells at a charge rate 0.5C (140 AMP). I...
  9. B

    Can't find the transformer I need so need to build my own

    ok, no problem. I can buy spools of wire at 20kg and I can print any mold for an high temp epoxy iron filled core. are we still on the same page or am I assumed to dive into subject matter that is hard for me to understand
  10. B

    Can't find the transformer I need so need to build my own

    yes thank you, so given my track recod of not being able to understand such hard core science I am assuming that your answer is; yes we have got something to play with here?
  11. B

    Can't find the transformer I need so need to build my own

    if I deprive my whole household of any power I could in theory pump 3 x 5750 watts (17.25KW) through any load I might care to envision right? that is before the 3 x mains grid 25 amps breakers break. I have not gotten into the subject yet of having a potent battery bank and having it discharge...
  12. B

    Can't find the transformer I need so need to build my own

    yes, so now I have diam. 1mm enameled copper wire and planning on winding it 630 times. for the secondary I will wind the 8mm diam (50mm2) wire 10 times as to hopefully get 6.65VAC (EDIT: 3.65VAC) I mean 1mm diam primary wire is nothing to sneeze at is it? but if it is have no fear, I can get...
  13. B

    Can't find the transformer I need so need to build my own

    I do have a 3 phase mains connection of 3 x 25 amps. So for the lower requirement scenarios I can also by pass the 16 amp circuit breaker and hook up directly to one of the 3 25 amps lines (which have their own grid supplied 25 amps breakers.) Any hope left?
  14. B

    Can't find the transformer I need so need to build my own

    yes thank you for the heads up
  15. B

    Can't find the transformer I need so need to build my own

    With my latest attempt (extra large toroidal core) would you recon that 630 turns for the primary is good? It is a toroid with a 5cm diameter spanning a 18.5cm diameter. Or should I go larger?
  16. B

    Can't find the transformer I need so need to build my own

    I have found earlier down the road that stringing strands of insulated wire to form a single large wire does not work to allow for higher amps. We need a single (multiple conductive strand) core. Just thought of sharing this for newcomers like me
  17. B

    Can't find the transformer I need so need to build my own

    At the risk of cursing in the church.... Let me please start by stating that I mean no disrespect to either this community and to (high voltage) electronics what so ever for what I am going to say next. Although very much appreciated links to hard core scientific documentation regarding...
  18. B

    Can't find the transformer I need so need to build my own

    Thanks for the heads up. I'll be sure to read up on it.l I am looking to transform 230VAC 16 amps to 3.65VDC at 140 amps. Later down the line I am looking to transform 230VAC 16 amps to 58.4VDC at 140 amps. I could not find anything commercial that does this
  19. B

    Can't find the transformer I need so need to build my own

    I could double te winds to 126 and then do 2 winds on the secondary. theoretically that should also give an output of 3.6VAC Or I could do a 10 fold of turns (630) on the primary with 0.4mm enameled copper wire and 10 turns on the secondairy
  20. B

    Can't find the transformer I need so need to build my own

    Shall I try hooking this up? It's a 3d printed transformer core using iron filled filament. the core therefore is ferromagnetic but not conductive. There are 4 parts that are squeezed together so that it can be disassembled for another configuration. For this use case I've used 63 winds of 1mm...
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