Recent content by jackorocko

  1. J

    Help me figure out what this is

    well a motor is an inductor, so the easiest way to correct PF is to add in some capacitance. Is that not really what they are doing here?
  2. J

    Exactly how evil are Capacitors?

    could it be a hot topic icon?
  3. J

    Exactly how evil are Capacitors?

    its the follow icon, means you have subscribed to the thread
  4. J

    Exactly how evil are Capacitors?

    dorke makes a good point, here in the states I think the max. voltage for UL listed cat 2 measuring equipment is 600V. Everyone here has stated the obvious, electrocution will kill you! The below video is a stark reminder when someone doesn't pay attention to the rules or doesn't follow proper...
  5. J

    LTSPICE and 3 phase w/ transient analysis - SLOW!!!!!!!!!!!!!!

    I was right in my thinking. I actually came up with 5.5ms but knew that wasn't exactly right because of rounding errors so I took and educated guess and added in the decimal places from the 50Hz numbers posted in that pdf. It was close ;) Anyway, thanks for the clarification/formula and the...
  6. J

    LTSPICE and 3 phase w/ transient analysis - SLOW!!!!!!!!!!!!!!

    I been messing around with LTSPICE lately in an attempt to play around with some 3 phase wiring ideas I had been trying to understand. All was working out well till I tried to simulate a step down isolation transformer according to this pdf file here page 44...
  7. J

    3 phase drum switch wiring -- validation

    The attached photo is the only paperwork I got for the drum switch. There is no form350-21c to be found on the internet and since A&B was sold, Rockwell automation doesn't know squat. But, I have a 3 phase motor. I plan on hooking this up for maintained contact with the following wiring...
  8. J

    I'm serious!

    Those things barely get hot enough to even melt solder, let alone the kind that melts at a higher temperature. Throw it away and spend a few bucks on a 30W iron or something similar.
  9. J

    Solar->Battery->Timer->Water pump

    You would probably need to go into detail a little more about the above load to find the answers to your other questions. if it is a 120V AC pump then I think a 12V solar panel is not going to cut it to say the least.
  10. J

    Where is Electronics Point based?

    http://myip.ms/view/comp_ip/840354178/50.22.201.130
  11. J

    another motor question

    https://www.electronicspoint.com/treadmill-repair-and-pleasing-wife-t47284.html Well well, the answer was here all the time. LOL
  12. J

    another motor question

    Ok, so when I picked up this motor it came with a SCR speed control circuitry. I managed to wrap my head around it and wired it up for the most part and got the motor working with the controller. But, I have one left over part! I believe it is an inductor and I am just wondering on what side of...
  13. J

    recommend a multimeter

    Just as the title says. I had a decent sears multimeter from 20 years ago and it worked great for years. But good things never last a lifetime it seems. Calibration seems to went wonky with it and I am getting all kinds of wacky readings. Clearly it is more price effective to buy a new meter...
  14. J

    another motor question

    What does that mean for the ratings on the nameplate then? Under what condition is that measured?
  15. J

    another motor question

    I managed to grab an industrial 1.5 HP baldor DC motor for the right price out of luck today. I am trying to understand one important thing. How voltage and current relate to the motor. From what research I have done to my limited understanding. Voltage controls the speed of the motor. The...
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