Title :
A magneto-optic crystal based current measurement device
Author :
Cruden, A. ; McDonald, J.R. ; Andonovic, I. ; Uttamchandani, D. ; Porrelli, R. ; Allan, K.
Author_Institution :
Centre for Electr. Power Eng., Strathclyde Univ., Glasgow, UK
Abstract :
This paper describes the development and testing of an optical crystal based current sensor for use on medium and high voltage power networks. The sensor uses a terbium gallium garnet (TGG) magneto-optic crystal and is of an unlinked nature, with the sensing head consisting entirely of dielectric materials. Testing is reported at voltage levels up to 300 kV and current levels of 75 kA. A vibration compensation scheme and microprocessor based relay interface are described and temperature problems are discussed
Keywords :
detectors; electric current measurement; magneto-optical devices; power system measurement; 300 kV; 75 kA; current measurement device; current sensor; dielectric materials; high voltage power networks; magneto-optic crystal; medium voltage power networks; microprocessor based relay interface; temperature problems; terbium gallium garnet; vibration compensation scheme;
Conference_Titel :
Advances in Power System Control, Operation and Management, 1993. APSCOM-93., 2nd International Conference on
Conference_Location :
IET
Print_ISBN :
0-85296-569-9
