Fiber Current Sensors For HV-Lines

V. Annovazzi-lodi; S. Donati

doi:10.1117/12.941119

14 October 1987 Fiber Current Sensors For HV-Lines

V. Annovazzi-lodi, S. Donati

Proceedings Volume 0798, Fiber Optic Sensors II; (1987) https://doi.org/10.1117/12.941119
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

In this paper, we discuss the all-fiber approach to current sensing for high voltage applications. We present different sensors, based on the Faraday effect, which allow to perform measurements without any contact or linkage between the fiber and the line. This is obtained by an accurate control of the bending birefringence in the sensing coil and by a proper design of its shape. Using a multimode laser diode and a polarization readout scheme,the typical sensitivity is 1A (rms), with a dynamic range up to three decades and a bandwidth of 10 KHz. These performances are adequate both for steady-state measurement and transient monitoring.

Citation Download Citation

V. Annovazzi-lodi and S. Donati "Fiber Current Sensors For HV-Lines", Proc. SPIE 0798, Fiber Optic Sensors II, (14 October 1987); https://doi.org/10.1117/12.941119

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