Posted by 87nassaublue on February 03, 2010 at 04:00:22 from (72.15.97.115):
In Reply to: calling Billy Shafer posted by djm75 on February 03, 2010 at 03:27:11:
I had a 25kw generator on a data room. It had an electronic governor on it. The rpms would go nuts when our equipment load had grown to a certain point. The resolution was to add "resistive load" such as an electric motor to the load and it would settle. We were running all electronic chassis. I had to design a resistive load bank for it to make the rpm's run steady. The load bank was basically a bunch of heating elements like you'd find in an oven. Now that is a lot of trouble for a generator that is not particularly cheap. It ran fine after that, but if I'd done the original project, I wished I'd had the opportunity to buy a different brand like a Cummins or Onan.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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