Share Email Print

Proceedings Paper

Current transducers used in power line measurements
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

There are many solutions used for current measurements in power lines. The study shows a transducer consisting of a ferromagnetic core, a beam placed in an air-gap and a sensor for optical readout. The beam is made of silicon with a thin 50%Ni50%Fe film. The material of the core is permalloy. A distribution of magnetic field depends on current supplying the power line. The beam is deflected due to magnetic field in the air-gap. A deflection of the beam is measured by the optical fibre sensor. Its advantage is simple design, high precision of processing, non-electric transmission, low costs and ability of a non-contact measurement. Comsol Multiphysics 4.4 and Magnetic Fields Module (mef) were used for modeling. An influence of magnetic circuit's materials and dimensions of the ferromagnetic core and the air-gap were tested in order to determine the most sufficient distribution of magnetic field in the air-gap. The study shows results of the modeling of the transducer compared to practical results for a similar construction scaled down to lower current values.

Paper Details

Date Published: 19 August 2014
PDF: 6 pages
Proc. SPIE 9291, 13th International Scientific Conference on Optical Sensors and Electronic Sensors, 92910I (19 August 2014); doi: 10.1117/12.2073032
Show Author Affiliations
Sz. Milcarz, Lodz Univ. of Technology (Poland)
J. Gołębiowski, Lodz Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 9291:
13th International Scientific Conference on Optical Sensors and Electronic Sensors
Jacek Golebiowski; Roman Gozdur, Editor(s)

© SPIE. Terms of Use
Back to Top