Application Of An Optical Fibre Current Sensor To Electricity Supply Protection

A. P. Steer; S. J. Turner; P. R. B. Farrie; D. King; A. N. Tobin; R. P. Tatam; J. D. C. Jones; D. A. Jackson

doi:10.1117/12.961002

29 October 1989 Application Of An Optical Fibre Current Sensor To Electricity Supply Protection

A. P. Steer, S. J. Turner, P. R. B. Farrie, D. King, A. N. Tobin, R. P. Tatam, J. D. C. Jones, D. A. Jackson

Author Affiliations +

Proceedings Volume 1120, Fibre Optics '89; (1989) https://doi.org/10.1117/12.961002
Event: Sira/Fibre Optics '89, 1989, London, United Kingdom

Abstract

An optical current sensor has been designed and tested. This device, which employs the Faraday effect in optical fibre to measure electrical current, is intended to be applied in power system protection equipment; it is regarded as a potential replacement for the iron cored current transformer in certain applications. A novel polarization analyser arrangement is included in the optical current sensor. The theory of operation of this component is presented and it is shown that a simple graphical representation of the state of polarization may be produced in real time. The operation of the current sensor is described and pre-installation test results are presented.

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A. P. Steer, S. J. Turner, P. R. B. Farrie, D. King, A. N. Tobin, R. P. Tatam, J. D. C. Jones, and D. A. Jackson "Application Of An Optical Fibre Current Sensor To Electricity Supply Protection", Proc. SPIE 1120, Fibre Optics '89, (29 October 1989); https://doi.org/10.1117/12.961002

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