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Type: Posts; User: Besoeker

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  1. Replies
    15$$
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    468

    For IEC, it is the shaft output power and stated...

    For IEC, it is the shaft output power and stated in kW. It is usual, perhaps mandatory, for the nameplate to give input current so you can work out the supply kVA required.
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    5$$
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    167

    I can see that being terminal, no pun intended.

    I can see that being terminal, no pun intended.
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    15$$
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    468

    Not sure how it would be useful for anything.

    Not sure how it would be useful for anything.
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    15$$
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    468

    Think you did the conversion the wrong way round.

    Think you did the conversion the wrong way round.
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    11$$
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    260

    Bit of a long (and expensive!) trip for me to...

    Bit of a long (and expensive!) trip for me to make without having a comprehensive technical specification to peruse...........
    :)
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    11$$
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    260

    Will it work on 230V, 50Hz?? :)

    Will it work on 230V, 50Hz??

    :)
  7. Replies
    11$$
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    260

    My residential supply is nominally 230V single...

    My residential supply is nominally 230V single phase.
    It has significant harmonic voltage distortion.
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    4$$
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    268

    Or conductor inductance. But you are right....

    Or conductor inductance.
    But you are right. Unless the system is intentionally grounded (or earthed as we Brits would say), measurements to ground would be indeterminate, especially with a high...
  9. Replies
    10$$
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    544

    That might well be case. It isn't often I've had...

    That might well be case. It isn't often I've had to be concerned with the efficiency of transformers of that rating. Typically we would use 500VA as a control circuit transformer in a several hundred...
  10. Replies
    10$$
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    544

    Figures I have for 400kVA 3-phase unit are 2% no...

    Figures I have for 400kVA 3-phase unit are 2% no load current and 0.3% no load losses.
    I don't know if this helps you.
  11. Thread: Xfmr voltage

    by Besoeker
    Replies
    6$$
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    318

    Nominally 400/230.

    Nominally 400/230.
  12. Replies
    8$$
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    320

    Easier is P=Tw w being omega, symbols don't...

    Easier is P=Tw

    w being omega, symbols don't seem to work here.
  13. Replies
    51$$
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    4,358

    On the other hand, you could measure and analyse...

    On the other hand, you could measure and analyse your supply voltage and get back to me when you have done that.

    And, FWIW, the oceans account for 1,314,829,398,016,000,000 cubic metres of water.
  14. Replies
    51$$
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    4,358

    Might I politely suggest that you do some...

    Might I politely suggest that you do some measurements and then you might be in a position to validate your points.
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    8$$
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    375

    Care to share? :p

    Care to share?
    :p
  16. Replies
    8$$
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    375

    The world is SI.

    The world is SI.
  17. Replies
    51$$
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    4,358

    I wouldn't. So we may have to agree to disagree....

    I wouldn't. So we may have to agree to disagree.
    But you might like to consider where that 5% comes from.
  18. Replies
    51$$
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    4,358

    You might be surprised. And it depends on what...

    You might be surprised. And it depends on what you call clean.
    I was visiting Toshiba Houston a few years ago. The supply was not all that great when I checked it.
  19. Replies
    51$$
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    4,358

    That's not actually correct. The UK commonly uses...

    That's not actually correct. The UK commonly uses 11kV to 400V for distribution. I have measured harmonic distortion at the 11kV level that was outside the limits of what was deemed acceptable.
    Had...
  20. Replies
    51$$
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    4,358

    Tektronix TD210 with the optional serial port. ...

    Tektronix TD210 with the optional serial port.

    http://i36.photobucket.com/albums/e39/Besoeker/X-Ymode_zpsb5f726f1.jpg
  21. Replies
    51$$
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    4,358

    I use a digital scope with a backlit LED display....

    I use a digital scope with a backlit LED display.
    It gives excellent results and I can dump the data into a spreadsheet for later analysis.
    ...
  22. Replies
    51$$
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    4,358

    Looks like third.

    Looks like third.
  23. Yes. If you over correct it is likely to increase...

    Yes. If you over correct it is likely to increase the voltage.
  24. Replies
    51$$
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    4,358

    Yes, I know about IEEE 519. We ship equipment to...

    Yes, I know about IEEE 519. We ship equipment to countries where we have to comply.
  25. Replies
    51$$
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    4,358

    Bear in mind that's current, not voltage.

    Bear in mind that's current, not voltage.
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