Search:

Type: Posts; User: hurk27

Page 1 of 8 1 2 3 4

Search: Search took 2.20 seconds.

  1. Replies
    21$$
    Views
    621

    Ok I didn't look it up, wonder if hes applying...

    Ok I didn't look it up, wonder if hes applying any derivative? for most simple level control like this I would leave the derivative set to off and only use proportional and integral to tune the tank,...
  2. Replies
    21$$
    Views
    621

    I have been thinking a little about this process...

    I have been thinking a little about this process and I think I see a problem with this kind of set up if the tank discharge (outflow) can vary over time?

    If the above is true then there is no way...
  3. Replies
    21$$
    Views
    621

    Ok after looking at the probe spec's from here :...

    Ok after looking at the probe spec's from here : Spec's for the 173 probe click on the data sheet link at the top
    this probe is onboard calibrated via 4 push buttons, it is also reversible so the...
  4. Replies
    21$$
    Views
    621

    Also please post how this loop is getting power...

    Also please post how this loop is getting power and what voltage the PS is, I have no idea how you can get 110ma in a 20ma loop as I don't think the span can go that high, something doesn't sound...
  5. Replies
    21$$
    Views
    621

    Edited because I didn't see your post 11 To...

    Edited because I didn't see your post 11

    To clear one thing up, this is not a 4-20ma loop, it is a 0-20ma loop and the probe has to be calibrated as such, if you calibrate it to 4-20 the drive...
  6. Replies
    24$$
    Views
    883

    You don't see MV to HV 69kv to 345kv run...

    You don't see MV to HV 69kv to 345kv run underground very much as the cost of the conductors is very cost prohibited, but I would expect in mountainous areas the amount of rock encountered would be...
  7. Replies
    24$$
    Views
    883

    The original poles were square prestressed that...

    The original poles were square prestressed that ran down card sound road from turkey point, Andrew took them out as well as chopped off all the 200'+ Australian pines that were to the east of the...
  8. Thread: Got Shocked

    by hurk27
    Replies
    26$$
    Views
    1,160

    Bill that is a Wago that is connecting the three...

    Bill that is a Wago that is connecting the three green EGC's, the white wire actually passes behind it, but notice the white wire from the MC cable to the right, it is striped out like it was landed,...
  9. Thread: Got Shocked

    by hurk27
    Replies
    26$$
    Views
    1,160

    It appears that the green wire remarked as a...

    It appears that the green wire remarked as a neutral may have been a bootleg ground, and the real neutral fell out of the backstab in the receptacle or red wirenut, this separated the neutrals and if...
  10. Replies
    36$$
    Views
    1,026

    I'm not going to get into the NM usage as we all...

    I'm not going to get into the NM usage as we all should know NM is not allowed in a wet location and yes it is required to be sized at the 60°c column of table 310.16.

    What I would like to discuss...
  11. Replies
    13$$
    Views
    566

    I just looked at you profile and seen you work...

    I just looked at you profile and seen you work for a utility, I'm very supprized that you would think of back feeding a house from a generator without using a transfer switch???,

    If this is not...
  12. Replies
    13$$
    Views
    566

    Just a point I would like to make to add to...

    Just a point I would like to make to add to Kwired's post above:

    Back when Hurricane Charlie hit Florida three electricians decided it was a good idea to back feed houses from generators to get...
  13. Replies
    12$$
    Views
    561

    With a 120/208 WYE you will have 208 volts A/B,...

    With a 120/208 WYE you will have 208 volts A/B, A/C, B/C, and 120 volts A,B,C to neutral

    With a 120/240 volt 4-wire delta also known as a high leg delta, You will have 240 volts A/B, A/C, B/C and...
  14. Replies
    11$$
    Views
    317

    Do not parallel a smaller set of conductors off...

    Do not parallel a smaller set of conductors off the 500's as a loss or weak connection in one of the 500's will put half of the 800 amp services load through these smaller parallel conductors, your...
  15. Replies
    14$$
    Views
    327

    600 amps @ 240 volts is 144kw. 144kw/480=300...

    600 amps @ 240 volts is 144kw.
    144kw/480=300 amps single phase on the primary side of the transformer.

    let say we have a three phase delta to delta transformer and the load is wired in delta:
    ...
  16. Replies
    14$$
    Views
    327

    [Duplicate

    [Duplicate
  17. Replies
    14$$
    Views
    327

    Never mind

    Never mind
  18. Thread: EMF

    by hurk27
    Replies
    48$$
    Views
    1,154

    We all must keep in mind Phobias are an anxiety...

    We all must keep in mind Phobias are an anxiety disorder that affects millions of people around the globe, it is a medical condition that is still not fully understood well, many scientist believes...
  19. Replies
    79$$
    Views
    2,102

    To bad you couldn't use DC motors but the cost...

    To bad you couldn't use DC motors but the cost would be too high, with a DC motor all you would need is to shunt the motor to keep it from windmilling, it would still turn but very slowly, to bad the...
  20. Replies
    79$$
    Views
    2,102

    Would the use of a 12 lead WYE start delta run...

    Would the use of a 12 lead WYE start delta run motor help in a case like this? but if the air flow is strong enough it might just over come the ability of the WYE starting to reverse the windmilling...
  21. Replies
    11$$
    Views
    675

    I have always put a disclaimer in my trenching...

    I have always put a disclaimer in my trenching contracts for any thing that is not locatable such as plastic sprinkler systems, sewer drain lines and or water lines, if there are tracing wires run...
  22. Replies
    18$$
    Views
    539

    This thread is about a corner grounded system not...

    This thread is about a corner grounded system not an ungrounded system, please see post 1.
  23. Replies
    79$$
    Views
    2,102

    Wonder if you could design a reversible variable...

    Wonder if you could design a reversible variable pitch fan that could return to a neutral position until the motor started then pitch to the desired direction?
  24. Replies
    35$$
    Views
    831

    The idea is to create an area of equal potential,...

    The idea is to create an area of equal potential, Earth does not have anything to do with this as we all have said that the resistance of earth is to high to remove the stray voltage, the reason the...
  25. Replies
    31$$
    Views
    1,310

    UL has been requiring thermo-fuses in these...

    UL has been requiring thermo-fuses in these motors for quite a while, yes they are buried in the windings and if you look at the end of the windings you will see three terminals, one is where the...
Results 1 to 25 of 200
Page 1 of 8 1 2 3 4