Power supply arrangement

The present invention relates to a power supply arrangement, especially in connection with a conductor of a medium-voltage overhead line, which arrangement comprises a power supply and a first and second element made of an electrically conductive material, which are connected electrically to the power supply for feeding energy to the power supply. A power supply arrangement, especially in connection with a conductor () of a medium-voltage overhead line, which arrangement comprises a power supply () and a first and second element () made of an electrically conductive material, which are connected electrically to the power supply for feeding energy to the power supply. The first element () of the power supply arrangement is arranged to be close to the conductor () and has a capacitance (Ce) to an element in a second potential, the capacitance being arranged to charge itself by effect of an electric field generated by the voltage of the medium-voltage conductor, and said second element () is arranged to have a galvanic or capacitive connection with the conductor () for feeding energy to the power supply () from the potential difference between said first and second elements.