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  1. Replies
    27$$
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    381

    OK. Boost just the motor supply from 208V to...

    OK. Boost just the motor supply from 208V to 240V. Small step, small transformer, small price.
  2. Replies
    27$$
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    381

    I'd go with the buck boost.

    I'd go with the buck boost.
  3. Replies
    27$$
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    381

    I've not been there in a while. But probably...

    I've not been there in a while.
    But probably more than half a dozen times over about 20 years.
    A mixture of business and pleasure. Paper mill, Manneken Pis, lace, but no 230 L-L that I was aware of.
  4. Replies
    27$$
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    381

    EU is currently 400VLL, 230VLN What they had in...

    EU is currently 400VLL, 230VLN
    What they had in the dim and distant past in the various regions I know not but the present arrangement has been in place as long as I can remember. And I'm older than...
  5. Replies
    27$$
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    381

    Brook Crompton still exists in Huddersfield. I...

    Brook Crompton still exists in Huddersfield. I don't know whether it is still a manufacturing site. It was when I last went there but that was thirty years ago or more.
  6. Replies
    27$$
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    381

    In Euroland neither 60Hz nor 240V 3-phase is...

    In Euroland neither 60Hz nor 240V 3-phase is common.
  7. Replies
    35$$
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    949

    Or, given how the question is worded, maybe none...

    Or, given how the question is worded, maybe none of the above would be appropriate?

    Must be solid? No.
    Must be stranded? No.
    Must be bare? No.
    Must be insulated? No.

    I agree with what others...
  8. Replies
    27$$
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    381

    Roughly, the torque is proportional to the square...

    Roughly, the torque is proportional to the square of the voltage so you would get about 75% torque. If your load can get by with that you may be ok.
    Otherwise, as mgookin sensibly suggests get a...
  9. Replies
    43$$
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    771

    OK. Let's take the case of a fixed power (kW)...

    OK.
    Let's take the case of a fixed power (kW) at different power factors.
    PF = kW/kVA
    That's just the basic real power/apparent power definition.

    From that:

    kW = PF * kVA

    Lower PF and...
  10. Replies
    43$$
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    771

    Ah, it works the same in any country.:p

    Ah, it works the same in any country.:p
  11. Thread: power factor

    by Besoeker
    Replies
    8$$
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    299

    Was in a hurry. Obviously lower power factor is...

    Was in a hurry. Obviously lower power factor is higher current.
    Apologies folks.
  12. Thread: power factor

    by Besoeker
    Replies
    8$$
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    299

    Because the kVA will be higher.

    Because the kVA will be higher.
  13. Thread: power factor

    by Besoeker
    Replies
    8$$
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    299

    Obviously the higher pf machine will draw greater...

    Obviously the higher pf machine will draw greater current so supply conductor losses will be greater.
    For the motor, it depends on a number of factors as the Digger guy said.
  14. Replies
    43$$
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    771

    Most variable frequency inverters do......:)

    Most variable frequency inverters do......:)
  15. Replies
    43$$
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    771

    kVA isn't power. Power is kW or kVA times PF....

    kVA isn't power. Power is kW or kVA times PF.
    The input and output power factors could be different.
  16. In the conductors that are shorted together....

    In the conductors that are shorted together.
    Unless I'm missing something terribly obvious.
  17. Replies
    8$$
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    274

    The dimmers I've come across are phase...

    The dimmers I've come across are phase controlled. Mostly leading edge but, in some cases, trailing edge.
    They work by reducing the conduction angle in each half cycle:

    10611

    The company I...
  18. Thread: Vfd help

    by Besoeker
    Replies
    12$$
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    518

    Does this excess current trip the drive or...

    Does this excess current trip the drive or overheat the motor?
  19. Thread: Vfd help

    by Besoeker
    Replies
    12$$
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    518

    OK. But I'm not sure what that has to do with the...

    OK. But I'm not sure what that has to do with the Altivar drive?
    It's simply supply voltage.
  20. I don't know about the NEC but can you apply a...

    I don't know about the NEC but can you apply a diversity factor?
  21. Replies
    5$$
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    226

    One of the giants of our field. But an unsung...

    One of the giants of our field.
    But an unsung hero.
  22. Thread: Vfd help

    by Besoeker
    Replies
    12$$
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    518

    Load side is what matters for the motor. Kine...

    Load side is what matters for the motor.
    Kine side is usually less. Difference in power factors.
  23. You make the point very well - two lots of...

    You make the point very well - two lots of conversions when none would be required if it was all SI.
    And you're stuck with SI for volts, amps, watts, ohms, etc.

    Anyway, I'm glad you found the...
  24. Replies
    12$$
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    350

    As you correctly point out without XO being...

    As you correctly point out without XO being bonded, phase A touching ground would not be a short circuit, so it doesn't really account for the dead outlet.


    Completely agree.
  25. Efficiency. Nope. Power is power....

    Efficiency.


    Nope. Power is power. Mechanical or electrical. Different units are not required. So why complicate the issue?


    Indeed. And not moved on.

    Slightly more seriously, I grew up...
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