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1 September 2017 Optical fiber current sensor with external conversion for measurements of low AC electric currents
Kamil Barczak, Krzysztof Maźniewski
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Proceedings Volume 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods; 104550R (2017) https://doi.org/10.1117/12.2282805
Event: Twelfth Integrated Optics – Sensors, Sensing Structures and Methods Conference, 2017, Szczyrk-Gliwice, Poland
Abstract
This article presents results of research on an optical fiber current sensor with external conversion (OFCS-EC), which was presented in article [1]. In this article the research is concentrated on an analysis of the sensor toward its application in power protection automation systems. For this purpose a busbar, designed for an operation in a current range up to 200 A, was selected. Such basbars are used in low voltage electric substations. A proper orientation of the OFCS-EC sensor head was chosen basing on calculations of a spatial magnetic field distribution round the busbar. Measurements were carried out in laboratory conditions. The sensor was placed in an alternating magnetic field generated by an air magnetic coil. A value of magnetic field induction generated in the coil corresponded to conditions round the busbar for given intensity of electric current conducting in it. Investigations presented in this paper are focused on checking whether a response signal of the OFCS-EC in conditions corresponding to the ones prevailing in an industrial environment. The results of these investigations have proven linearity of a response signal. Uncertainty of measurements of electric current was 18 A for current effective value 200 A.
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Kamil Barczak and Krzysztof Maźniewski "Optical fiber current sensor with external conversion for measurements of low AC electric currents", Proc. SPIE 10455, 12th Conference on Integrated Optics: Sensors, Sensing Structures, and Methods, 104550R (1 September 2017); https://doi.org/10.1117/12.2282805
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KEYWORDS
Sensors
Fiber optics sensors
Transducers
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