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  1. Daniel Green Shoe Company Hydro Plant - Practical Machinist

    Sep 22, 2011 · It looks like the DC vs AC or Westinghouse vs Edison battle had a skirmish in the Dolgeville plant. As is well known, Edison was a proponent of DC power, and Westinghouse …

  2. OT: voltage regulator & battery for a bicycle dynamo hub

    Sep 13, 2006 · With winter on the way I am adding a dynamo hub to my bike's front wheel. It is a Shimano Dynamo Hub DH 3N71 6V 2.4W Nexus (36 hole disk brake hub). I also have a …

  3. Any ideas for converting a windmill? - Practical Machinist

    Jan 13, 2005 · An efficient motor or generator needs, normally, to be run at high speed. They have managed to make efficient lower speed generators and motors but these are usually high …

  4. 3 phase motor used as generator - Practical Machinist

    May 27, 2009 · This might be the wrong place to post this but I didn't see anyplace else for a question of this nature. We just went through a 4 day run without any electricity and I just …

  5. Bridgeport / Hardinge and USA Light Iron - Practical Machinist

    Apr 26, 2021 · Hi all and thanks for reading. In a nutshell I’m looking on Feebay for a replacement X axis power feed. There seems to be a choice of two units, both made in China. The first is …

  6. Way oil vs HD hydraulic oil - Practical Machinist

    Dec 4, 2010 · Am I wrong thinking that using HD hydraulic oil to fill the carriage and tail stock reservoirs? Way oil is sticky and will hold fine chips but hydraulic oil is easily pushed off by the …

  7. Undercutting motor commutators by hand - Practical Machinist

    May 2, 2020 · I'm planning on taking a skim pass to clean up an axial commutator on a motor of mine because the surface of the bars has gotten a bit scalloped. Before I commit to this course …

  8. True three phase power system, motor/generator.

    Mar 26, 2011 · We spill a lot of ink on 3 phase power sources, RPC's, PP's, static and whatever. I have yet to see a current article on using a motor/generator system. It would not be as cheap …

  9. ot. how do you put power back on the grid? - Practical Machinist

    May 5, 2008 · If the smaller generator being brought on line to add power to the grid were simply connected to the grid, the odds are almost 100% that the sine waves the AC current of the grid …

  10. 4-20mA or 0-10v for VFD speed control - Practical Machinist

    Mar 29, 2022 · I want to be able to dial up/down my speed while running the mill. I can program the VFD for either 4-20ma or 0-10v. How does either one work, and what device is used? My …