The Research On Capabilities Of Ferromagnetic Field Concentrator Optical Current Transducer

With the development of electric industry, the digital substations are used in power system frequently. The study of optical current transducer becomes the main question of discussion.In this thesis, the primary study is optical transducing structure on ferromagnetic field concentrator.The capabilities of optical transducing structure on ferromagnetic field concentrator are analyzed detailedly and variously, through academic consequence, simulated model and test. The simulating results indicate that the optical current transducer based on ferromagnetic field concentrator has the excellent sensitivity, linear degree and ability of immunity to external magnetic field interference. The conclusion had shown that use the optical transducing structure on ferromagnetic field concentrator to improve the performance of OCT are correct . The ferromagnetic field concentrator optical transducing structure is of excellent characteristics and fulfil practicality of power system.