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  1. melec

    Obscure Cable Geometry Question: ABB T&D Book, Geometric Factor

    I am also having a similar problem to brainsalad. It seems that the values given on figure 10 (Westinghouse, page 36) are valid for 60Hz frequency. Would anyone have an equivalent table which can be used for the calculation of GMR in applications where the frequecy is 50Hz? Many thanks.
  2. melec

    3 winding trafos

    Thanks Magoo2. It's past a examination question for a taught Masters.
  3. melec

    3 winding trafos

    Sorry for the incorrect spelling. However to calculate the resistive load connected to the tertiary, could I assume that the load is 50MVA at 11kV?
  4. melec

    3 winding trafos

    Thanks Magoo2. However to calcualate rsistive load connected to the tertiary, could I assume that the load is 50MVA at 11kV?
  5. melec

    3 winding trafos

    Can anyone help me? 3 winding trafo: Primary: 600 MVA, 11kV Secondary: 600 MVA, 400kV Tertiary: 100 MVA, 11kV There's a balanced load of 400 MVA @ .8 lagging p.f. on the secondary, which is maintained at 400kV line voltage, and a balanced load of 50 MVA at...

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