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  1. Replies
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    What is the surface made of? What sort of...

    What is the surface made of? What sort of paint?

    I have found that strong alkali removes most, but not epoxy paints. Peelaway #1 is a one that does a good job.

    Peelaway #7 is also good...
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    The generated leg really does not have a good...

    The generated leg really does not have a good path for regenerated energy. It almost has NO path.

    To pass energy from the generated leg back to the line, it would have to take the energy in,...
  3. Probably a motor with a high resistance rotor. ...

    Probably a motor with a high resistance rotor. My RPC has a dual cage motor, the outer start cage is high resistance, and the motor has only one non-switched capacitor, functioning as a start and...
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    When connected two wires PLUS NEUTRAL, it will...

    When connected two wires PLUS NEUTRAL, it will self start, and run. Torque may be a bit "lumpy", but less so than single phase.

    The 120 degree spacing of the phases is "two phase", and will...
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    In case you were not paying attention, that WAS...

    In case you were not paying attention, that WAS mentioned at least three times. And, yes, it will work, at reduced power. Somewhat better than a "static converter" however, as it starts itself...
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    Yes..... dumb chargers do kill batteries. ...

    Yes..... dumb chargers do kill batteries. All types of batteries. They are just a compromise between a fast enough recharge to not get complaints, killing the batteries too fast, and cost. ...
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    There used to be rechargeable alkaline cells. ...

    There used to be rechargeable alkaline cells. They had, if I recall correctly, the same voltage as regular alkaline. Good for 100-200 recharges.

    Had a bunch of them, all now kaput.
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    Do you actually need to 3D model the actual...

    Do you actually need to 3D model the actual thread?

    All I have ever done for that is to call out the thread size and class, and the length of it. Has never been a problem.

    Unless you are doing...
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    Attorneys are not all-knowing. I had the...

    Attorneys are not all-knowing.

    I had the "pleasure" of dealing with an attorney at arguably the best patent law firm in the area, for two patents at my employer. One mine, one a co-worker's. ...
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    Definite yes on that second one................

    Definite yes on that second one................
  11. Yes, 100% vs 14% ripple, as well as all the...

    Yes, 100% vs 14% ripple, as well as all the current on fewer rectifiers. But that is correctable...... and is not always even a problem The maker would know what the deal is.

    No reason not to...
  12. You already decide, and probably took the best...

    You already decide, and probably took the best long-term path.

    But, an induction heater should just be rectifying the incoming voltage, It may be fine with single phase, depending on the...
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    As long as you allow for evaporation.... i.e....

    As long as you allow for evaporation.... i.e. self-discharge. Not a problem with any actual charger, but there are cases of super slow charge, typically in a backup battery for ram etc, where you...
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    More capacity means longer recharge od more...

    More capacity means longer recharge od more current. Likely longer recharge, as the current may be limited.

    it's the old bucket and faucet issue. Bigger bucket takes longer.
  15. Replies
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    The values are OK when you get the results you...

    The values are OK when you get the results you want.

    It's fairly normal to set the generated leg a little high, because compensating with capacitors is not super-stable, and the voltage will...
  16. Replies
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    The high generated leg voltage to ground/neutral...

    The high generated leg voltage to ground/neutral is correct. Maybe not the exact voltage, since your generated leg is higher than usual. Generally, voltages to ground or neutral are not important,...
  17. Because it would run at any of the rated voltages...

    Because it would run at any of the rated voltages at either frequency. So it is mix and match with the voltages and frequencies, with that motor.

    Motors not having that rating are back to...
  18. You can have 3 phase at any voltage, but there...

    You can have 3 phase at any voltage, but there are standard voltages in the US and slightly different ones in europe etc.

    You can have SINGLE phase at any voltage, also. Voltage and number of...
  19. The wye for high voltage is actually true. ...

    The wye for high voltage is actually true.

    With the delta connection, you would have (for instance) a 230V winding right across the L-L voltage. If that is 230, you are fine.

    With the wye...
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    Oops, that was supposed to be 415V, which is what...

    Oops, that was supposed to be 415V, which is what the poster says he has. Fixed.
  21. Replies
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    It's a straight-up 60 Hz motor (the one in the...

    It's a straight-up 60 Hz motor (the one in the pic that you asked about) with an alternate rating at 50 Hz. f the speed is not an issue, it will run on 5/6 the voltage at 5/6 the frequency and never...
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    It has two sets of coils, 7/8/9 are...

    It has two sets of coils, 7/8/9 are permanently wye, 1-4/ 2-5/ 3-6 are individual. Look at the diagram and think for a bit.

    One wye connection is parallel wyes, the other adds the 1-4 etc in...
  23. Kalifornia............... yep:nutter: is...

    Kalifornia............... yep:nutter: is right.
  24. You weren't supposed to make sense....... ...

    You weren't supposed to make sense.......

    Neither were the folks who think your genset should run on electric..... apparently.
  25. Steel rusts (oxidizes) wood burns (oxidizes). ...

    Steel rusts (oxidizes) wood burns (oxidizes). Stainless steel rusts a lot less, and the steel industry developed that for the places that regular steel is not satisfactory. And there are other...
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