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  • Users: zelvica
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  1. zelvica

    XHE 48 and IPO 13 cable parameterst

    Hello! Does any one know any web site where I could find cable parameters (sequence impedances) about these cables: -XHE 48,49 -IPO 13,14 I know the values depend on different factors such as ground resistance, how the cables are laid and how far apart they are but anyway I need at lest some...
  2. zelvica

    In-rush current

    How do we calculate in-rush current of transformer at swithing-on based on iron losses and no-load current? Thanks, zelvica
  3. zelvica

    Rush current of transformer

    Hello! Is there any good site about power transformer theory - especially about in-rush current! Thanks, zelvica
  4. zelvica

    Software for short circuit calculation

    I need a software for calculation of short circuit currents in distribution network. Is there any program where I can besides the impedance voltage enter other data about transformer (no-load/load losses, no-load current). I need this to analyze how these parameters affect the results. Thanks...
  5. zelvica

    Loop in NETOMAC

    Hello! I need to create a loop for some calculations in one iteration step in program NETOMAC. I am trying to do it with IF / ENDIF ststement but the program hangs up. Is creating a loop possible at all? Thank you, Gorazd
  6. zelvica

    Influence of impedance voltage

    Hello! In our distribution company there is about 5000 10(20)/0.4 kV transformers. For the purpouses of new control center we have to enter (rather import) data about them. We already have a database for characteristical data (S, Uprim, Usec, uk). Many of these transformers are from the same...
  7. zelvica

    No-load current influence on short circuit calc.

    Hi! Our company bought a new software for the purpose of calculation of load flow, state estimation short circuit calculation... For short circuit calculations we need to enter data about (besides impedance voltage uk and nominal power and voltage): - no-load current, - no-load loss and - load...

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