Basing on the introduction of theory of the optical current transformer and the theory of concentrating magnetism

this paper described a kind of structure of the optical current transformer with magnetic concentrator

simulated the magnetic concentrator and confirmed the effect of concentrating magnetism in different length of air gap with ANSYS.The test result indicates that the optical current transformer with structure of concentrating magnetism not only enhances sensitivity of the optical current transformer but also be of higher linearity

thus it has a good application prospect.