Recent content by gkam44

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    Where can one still find a slide rule?

    I recently found my K&E Decilon, in new condition. It's beautiful, both sides. http://www.sliderules.info/collection/10inch/020/1025-decilon.htm
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    Grid tie inverter distorting waveform

    Most inverters produce a facsimile of a waveshape, but very crude, a step function with copious harmonics. I would check to make sure what you did was correct first, as far as the hookup and your regulator. Are the panels balanced with the inverter and loads?
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    Relation Between Electric Frequency and magnetic field rotation speed in a motor

    On short notice, I just looked up "three phase windings" and found some pics...
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    Relation Between Electric Frequency and magnetic field rotation speed in a motor

    Chaca, good question. But each of the three phases is in its own winding. The windings are 120 degrees apart physically (rotationally), too. It is not one winding. I have some stuff I used to teach around here somewhere, if you want help in visualization.
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    Greetings from a 70 year old generalist

    What do I do now?
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    Greetings from a 70 year old generalist

    Thanks. Did I say I had solutions? And you should know better than to ask an old guy about his "experiences", unless you have a few days to waste.
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    Greetings from a 70 year old generalist

    Many folk like to use the phrase "talking truth to power", but those of us who do have colorful work histories. My life has been in technical fields, both in the Air Force and industry. Now retired, I earned a Master of Science in Energy and the Environment, was a Senior Engineer for a large...
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