Recent content by rodnjo

  1. R

    Alternator Rewinding: Length & Gauge for 240V/20A & 15V/90A

    Hi, Thanks for the replies. I will have a look at those sites and the book. It's not a car alternator though, it's an older petrol alternator / generator. Thanks' Rodney
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    Alternator Rewinding: Length & Gauge for 240V/20A & 15V/90A

    Hi, I am looking at rewinding an alternator and have a few questions. I believe that the length of the wire determines the max volts and the gauge determines the max amps. Is there a formula or some test I can do to determine the length and gauge I need the wire to be. I have two...
  3. R

    Water volume, flow and speed question.

    Another question regarding the above post. Which would have the higher velocity. A pump delivering 31.8 l/min at 1 bar or A pump delivering 6.5 l/min at 3.5 bar or if you can tell me have to work this out I will.
  4. R

    Water volume, flow and speed question.

    Its only for a water feature in a garden setting, I was intending to have a small generator connected to the wheel to power a few 12v low watt garden lights with the generator in a small house and the wheel on the side. I know there is other ways to achieve this, I am not trying to save power it...
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    Water volume, flow and speed question.

    Hi, First I would like to apologise for my lack of understanding in this area, this is all new for me. I am designing a water feature (hopefully a working one). I have a pump that will deliver 31.8 L/min through a 19mm pipe at 1 bar. If 31.8 litre of water = 31,800 cm³ and if the volume...
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