Title :
A new hybrid current sensor for high-voltage applications
Author :
Bull, J. ; Jaeger, N. ; Rahmatian, Farnoosh
Author_Institution :
British Columbia Univ., BC, Canada
Abstract :
Summary form only given. This article presents a new hybrid electro-optic/inductive current sensor for metering and protective relaying applications. The sensor combines a Rogowski coil with a passive integrator located in the high-voltage environment. An integrated-optic Pockels cell (IOPC) having integrated electrodes provides optical isolation. Test results from 30 A to 30 kA show the sensor to be highly linear, exceeding 0.2% linearity standards. Temperature cycling tests show the ratio error to have a maximum value of 0.3% over the -30 to +70 /spl deg/C range.
Keywords :
electric current measurement; electric sensing devices; electro-optical devices; high-voltage engineering; integrated optics; relay protection; 30 A to 30 kA; Rogowski coil; electro-optic current sensor; high-voltage environment; inductive current sensor; integrated electrodes; integrated-optic Pockels cell; protective relaying; temperature cycling tests; Coils; Electrodes; Electrooptic devices; Integrated optics; Linearity; Optical sensors; Protective relaying; Temperature distribution; Temperature sensors; Testing;
Conference_Titel :
Power Engineering Society General Meeting, 2004. IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-8465-2
DOI :
10.1109/PES.2004.1372973
