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    Electrical networks

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    Engine consumes 5kw of power and a reactive power of 2kvar at current of (3+j2) Amps. Find the applied voltage in complex form V=(a+jb). Then use P=Re(VI*) and Q=IM(VI*) to form two simultaneous equations.
    Please show workings.

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    Solution Preview

    V = (a+jb)
    I = 3+j2
    I* = 3-j2
    VI* = (a+jb)*(3-j2) = (3a+2b) + ...

    Solution Summary

    This solution finds the applied voltage in complex form of an engine, then forms two simultaneous equations.