Power transfer computations for medium voltage AC link by imposing rated current at sending end

This paper derives the mathematical expressions for computation of the load impedance magnitude, such that rated cable current is imposed at the sending end, with sending end voltage as the reference phasor. Thereby, the variation in maximum power transferred to the receiving end of a medium voltage cable link is described for varying link length, conductor cross-sectional area and load power factor. The percentage error in transmitted power computation due to simplification by neglecting the cable capacitance is quantified. The merit of the developed theory for future use is highlighted.

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