Abstract
The mathematics and physics model of OCT (Optical Current Transformer) with a gapped magnetic ring is briefly discussed in the paper. And some proposals of how to select the magnetic materials and crystals and reduce the stress birefringence of the crystal are also put forward in the paper. Based on the above, an OCT with 1000 A rated current is designed by using the ANSOFT Maxwell tools.
Highlights
IntroductionFaraday magneto-optical effect is applied in optical current transformer (OCT)
The mathematics and physics model of optical current transformer (OCT) (Optical Current Transformer) with a gapped magnetic ring is briefly discussed in the paper
Faraday magneto-optical effect is applied in optical current transformer (OCT)
Summary
Faraday magneto-optical effect is applied in optical current transformer (OCT). Based on its sensing methodology it can be divided into four types: fiber one, bulk glass one, solenoid one, as well as gapped magnetic ring one [1]. The one with a gapped magnetic ring utilizes a small piece of magneto-optic crystal and other optical elements to be placed in the gap of the magnetic ring wounding around a current carrying conductor to form an optical circuit. The gap magnetically induced by the current flowing in the conductor and the crystal are the “heart” of an optical current transformer head. This paper discusses the characteristics of the OCT with gapped magnetic ring. Reasons and procedures to select magnetic materials and crystals and mitigate stress birefringence are represented in the paper. Depending on the analysis above and the ANSOFT Maxwell tools, the optimized structure of an OCT with 1000A has been achieved
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
