A clamp-on magneto-optical current transducer for power systems

Author

Song, J. ; McLaren, P.G. ; Thomson, D.J. ; Middleton, R.L.

Author_Institution

Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada

Volume

2

fYear

1996

fDate

26-29 May 1996

Firstpage

884

Abstract

A new type of Faraday effect-based magneto-optical current transducer (MOCT) has been developed. This paper presents the theoretical background, engineering design and test results of this clamp-on MOCT. The sensor consists of two separate clamp-on parts. This design avoids the need to break the current carrying circuit in order to have the conductor enclosed by the optical path while keeping the same measurement accuracy. A feedback scheme has been designed to stabilize the light source. The MOCT has two output stages, 1 kA, and 20 kA, so that it can provide current signals for both power system metering and relaying devices

Keywords

Faraday effect; electric current measurement; magneto-optical sensors; power system measurement; power system relaying; 1 kA; 20 kA; Faraday effect; clamp-on magneto-optical current transducer; current carrying circuit; current signals; engineering design; feedback scheme; light source stabilisation; measurement accuracy; power system metering devices; power system relaying devices; test results; theoretical background; Circuit testing; Design engineering; Magnetic sensors; Magnetooptic effects; Optical design; Optical feedback; Power engineering and energy; Power system relaying; Power systems; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 1996. Canadian Conference on

Conference_Location

Calgary, Alta.

ISSN

0840-7789

Print_ISBN

0-7803-3143-5

Type

conf

DOI

10.1109/CCECE.1996.548294

Filename

548294