Power supply for on-line monitoring device of power lines based on double-half ring core

In order to solve the problem of insufficient energy supply on-line monitoring device transmission line, a sensor acquisition scheme directly installed on line is proposed. current power supply, induction kind extraction method with better practical applicability. Since devices and electronic equipment are often in strong magnetic field high voltage environment, designing stable reliable guarantee for operation equipment. This paper presents structure energy-absorbing iron core two semi-circular cores, studies saturation inductive design DC output circuit.