Parameter underground line conductor

  • Rose Mueller

    Rose Mueller - 2013-01-09

    Hi all,

    I´ve got a question concerning the parameters of the underground line.
    The diameter is two times the radius. But an example in the powerflow user guide is:
    Conductor diameter: 1.15
    Conductor gmr: 0.0368
    Neutral diameter: 0.102
    Neutral gmr: 0.00331
    Neither the diameter of the conductor nor the diameter of the neutral is two times the radius, although I respected the conversion from feet in inches.
    Can somebody explain me how to calculate the diameter and the radius?


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