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  1. TimWilborne

    wiring compressor with HOA switch, magnetic contactor and no-volts release

    Glad it helped and thanks for the feedback. It can be challenging to relay...no pun intended...which components in my videos equate to which components out in the field sometimes. I have a trainer that has a basic motor starter set up that might have made that clearer but I was already set up...
  2. TimWilborne

    wiring compressor with HOA switch, magnetic contactor and no-volts release

    Ok I must have misread. I thought they needed a pressure switch in the circuit also.
  3. TimWilborne

    wiring compressor with HOA switch, magnetic contactor and no-volts release

    @metalmagpie and @rons . Does this video show the problem and solution well? It was a good exercise.
  4. TimWilborne

    wiring compressor with HOA switch, magnetic contactor and no-volts release

    It is probably still a good practice on a lot of stand alone systems today where someone could easily be injured due to a sudden start. We should lock out equipment, but you would be surprised at the crazy ways machines react to losing power.
  5. TimWilborne

    wiring compressor with HOA switch, magnetic contactor and no-volts release

    @SomeoneSomewhere is correct, it is only the control portion of the wiring diagram and my hand is covering the power supply. The wires coming out of the right side of the small relay and big contactor would go to the DC- or N. The wires coming out of the left side of each go through the pilot...
  6. TimWilborne

    wiring compressor with HOA switch, magnetic contactor and no-volts release

    Thanks for the plug @rons . Here it is with the no power up option. That might make a good video.
  7. TimWilborne

    OT - Well pump VFD or soft start or ???

    I was surprised to see this single phase in single phase out variable speed well controller on a job spec the other week. I haven't used one yet but I thought I would share it. Goulds 1AS15, Aquavar Solo, Variable Speed, Constant Pressure Controller With Transducer, (230 Volts, Single Phase...
  8. TimWilborne

    THE "amp-clamp" and clamp-on ammeter problem thread

    Sounds like we're on the same page so I don't think I can do anything to help that fellow out if he's not listening to you.
  9. TimWilborne

    THE "amp-clamp" and clamp-on ammeter problem thread

    I hate to throw my 2 cents in without seeing these threads, maybe you can PM me a few, but I will give a penny's worth of thought. What I see a lot of people do is try to compare their "power consumption" measured with a volt meter and a clamp-on amp meter to what their electric meter on their...
  10. TimWilborne

    THE "amp-clamp" and clamp-on ammeter problem thread

    I'm getting ready to do a video on power factor and the difference between current/voltage readings and wattage so I'm interested in the discussion but I'm having trouble following it. Is the dispute between current meters and wattage meters or clamp on current meters and solid core current meters?
  11. TimWilborne

    Question on a single phase motor repair

    I should have thought of that. I sent Sweet Dreamer here thinking the timer would be the best option. I even did a video covering the potential relay a while back. I guess I need to clean out the cobwebs...
  12. TimWilborne

    Pulse width modulation for a valve

    You need to verify the voltage it is pulsing also. Chances are it will be 12 or 24 volt but I have also seen 5 and 48 volt. If you pulse with the wrong voltage then you can damage the valve. You can't measure this with a multimeter. You can measure it with an occiloscope or trace the wires back...
  13. TimWilborne

    Video Review Request - Running a 3 Phase Machine with Single Phase Power Using a VFD

    It is amazing the engineering that went into these machines. When you first glance at it, it looks crude but every little piece has been carefully designed. I put out a video today laying out the equipment I'm going to use to go through how VFDs and Rotary Phase Converters work. Rotary Phase...
  14. TimWilborne

    Wire Ferrules- When to use or not use?

    Thanks. I think Justin's comment of "once the two wires are crimped with the two wire rated ferrule the connection is reclassified as a single wire termination point" is the one I would like to see sited because it would really tie up the loose ends on both using a ferrule on stranded wire so...
  15. TimWilborne

    Wire Ferrules- When to use or not use?

    I had to look up some other things in UL 508A so I went ahead and found the details of the ferrule specification while I was at it. First I was wrong about the multiple wire ferrules not being allowed, I'm not sure where I got that idea. I interpret B below to say you can. 29.3.6 A wiring...
  16. TimWilborne

    Wire Ferrules- When to use or not use?

    UL 508A states the following, this is for control panels, interestingly components such as that GE starter don't follow UL 508A. Power wiring - "29.6.1 Internal wiring of a power circuit shall not be smaller than 14 AWG (2.1 mm2) and..." Control wiring - "37.2.1 The required size of a field...
  17. TimWilborne

    Wire Ferrules- When to use or not use?

    If we're talking UL, then your 120VAC would need to be 14AWG minimum. After a class 2 power supply then UL doesn't have any requirements and I usually use 18AWG, mainly because it can fit into small terminals even when ferruled. As far as wire type, I use MTW because it is flexible and lays...
  18. TimWilborne

    Wire Ferrules- When to use or not use?

    Here is the machine I have. https://www.amazon.com/dp/B073ZD7FQR/ref=cm_sw_em_r_mt_dp_T1XCJYB342W32GZ4J9VM If you don't need the wires stripped, it can actually multiple small wires at the same time. Here's a sample of that. Wire machine cutting multiple wires Here it is cutting and stripping...
  19. TimWilborne

    Wire Ferrules- When to use or not use?

    I didn't think the dual ferrules were allowed by UL That's pretty neat. I hadn't seen one of them. I have a machine that cuts wire to length and strips both ends. It has been well worth it. It can do about 1 hours hand cutting in stripping per minute of run time. Installing ferrules would...
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