THE reference for power system transients

CP line/cable m-phase with only some continously transposed wires

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  • 31 July 2025 at 11h09 #6678
    anonymous
    Keymaster

    Dear Ladies and Gentlemen,

    this is my first forum contribution so please excuse me, if I should post anything wrong.

    I have the following set up for my recent project:

    3 cables with 2 conductors each (layed straight)

    and another cable with 2 conductors which is continously transposed (twisted (like a twisted two-pair)).

    Question:

    They are included in the “CP line/cable m-phase” block. My problem now is, that there is only a global option for: “Continously Transposed” but only 2 conductors in one cable are transposed/twisted. What would be the best way to model a system where multiple cables influence each other but only some of them are twisted?

    Thank you very much in advance.

    René

    31 July 2025 at 11h09 #6680
    anonymous
    Keymaster

    Hi René,

    I suggest to model the cable using a “”Real Transformation Matrix”” (No transposition) and to divide the cable in several sections. You can then connect all the sectiosn in series and transpose only the two conductors concerned.

    I hope this helps.

    Emmanuel.

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