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Recent content by PoliPoliCarps

  1. PoliPoliCarps

    How to use the Variac

    How to use this? There are no manual or sort
  2. PoliPoliCarps

    etap simulation software

    anyone has idea how much modelling and simulation with ETAP usually cost? complete 'worst case' PQ simulation USING software?
  3. PoliPoliCarps

    Test result or Certificate of UL listing or equivalent

    when they say Certificate of UL listing is it equivalent to Type Test Certificate in IEC?
  4. PoliPoliCarps

    IEE519 and IEC6000

    hello what is the difference between the two standard? is it same?
  5. PoliPoliCarps

    Detuned Reactor vs Line/Load AC Reactor

    Hello, what is the difference between Detuned Reactor (capacitor banks?) vs Line/Load AC Reactor (drives) thanks
  6. PoliPoliCarps

    Electrical Symbol Question

    hello Dave it's for a panel enclosure
  7. PoliPoliCarps

    Electrical Symbol Question

    hello can someone please advise what device is in the red box symbol?https://files.engineering.com/getfile.aspx?folder=bddd9a3f-b0c0-451c-8541-298b62f31bff&file=question1.png
  8. PoliPoliCarps

    voltage drop analysis

    hello, can I ask I am conducting a voltage drop analysis with two medium voltage motors. now my MTR1 is 94.53% voltage drop and the other one is 98.83% can someone please explain that being said why there's such difference
  9. PoliPoliCarps

    UPS Application Transformer configuration

    Is there anyone who experience using wye-wye in UPS connection? aparently we have a problem with the ATS function (4P) upon installing a wye-wye configuration isolation transformer
  10. PoliPoliCarps

    Medium Voltage Switchgear

    Hello, davidbeach do you have brands which use the two-stack type? Was it ANSI or IEC?
  11. PoliPoliCarps

    Medium Voltage Switchgear

    hello, what does two-stack type switchgear means?
  12. PoliPoliCarps

    MOTOR TERMINAL BOX Cable Connection Arrangement

    Yes apparently they use single core and not multicore for the motor cables
  13. PoliPoliCarps

    MOTOR TERMINAL BOX Cable Connection Arrangement

    hello, i would like to ask about wiring methodology. i have a motor terminal box, with 2 holes, 2xM63 aparently i am using a single core cable. and by using trefoil cable arrangement, it won't fit in one of the M63 existing hole entry. so our customer inform that use the 2 holes x M63 by doing...
  14. PoliPoliCarps

    Variable Speed Drive - Frequent ON/OFF

    Hello there. Thank you so much for responding to my question. Here's some information. The operation is a Mining Plant. I have Two Motor Feeders rated 250kW with belt to feed the material to the next operation which is the Crushers This Two Motor Feeders 250kW coupled together with a hollow...
  15. PoliPoliCarps

    Variable Speed Drive - Frequent ON/OFF

    Dear All, Can I ask, are there any serious effect or what happens when you frequently ON / OFF a variable speed drive? will something happen to this equipment? Thanks

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