Wide-range current change CT (Current Transformer) energy taking device for high-voltage transmission line

The invention discloses a high-voltage transmission line-oriented wide-range current change CT energy taking device, and the device comprises an energy collection unit which is connected with a single-phase rectification unit, and the energy collection unit is used for providing electric energy for the single-phase rectification unit; the single-phase rectification unit is connected with the filtering energy storage unit, and the single-phase rectification unit and the filtering energy storage unit are grounded at the same time. The filtering energy storage unit is connected with an equivalent load RL; the single-phase rectification unit rectifies the electric energy; the filtering energy storage unit filters the electric energy and improves the output power. According to the invention, under the condition that the current in the voltage transmission line changes, stable energy is collected through the magnetic core; stable and sufficient energy is provided for the load through rectification filtering process