230 kV optical voltage transducer using a distributed optical electric field sensor system

Title230 kV optical voltage transducer using a distributed optical electric field sensor system
Publication TypeConference Paper
Year of Publication2001
AuthorsChavez, P. P., F. Rahmatian, and N. A. F. Jaeger
Conference NameTransmission and Distribution Conference and Exposition, 2001 IEEE/PES
Pagination131 -135 vol.1
Keywords230 kV, BC Hydro internal specifications, calibration, Canada, chopped impulse tests, distributed optical electric field sensor system, dry power-frequency withstand tests, electric field effects, electric field measurement, fibre optic sensors, Gaussian quadrature, high-voltage environments, high-voltage techniques, HV environments, HV optical voltage transducers, IEC 60044-2, IEC 60044-7, IEEE/ANSI C57.13, impulse testing, lightning impulse tests, local conductor geometry, mechanical withstand tests, numerical analysis, optical voltage transducer, partial discharge tests, Powertech Labs, voltage measurement, wet power-frequency withstand tests

Optical technology for use in high-voltage (HV) environments has advanced considerably over the past decade. The design and testing of HV optical voltage transducers (OVTs) that use a series of small optical electric field sensors are described. Three 230 kV OVTs were built and were successfully tested as per IEC (60044-2 and -7), IEEE/ANSI C57.13, and BC Hydro internal specifications at Powertech Labs in Surrey, British Columbia, Canada. The devices met the accuracy requirements of IEC 0.2% class and IEEE 0.3% class and passed lightning impulse tests, chopped impulse tests, partial discharge tests, wet and dry power-frequency withstand tests, and mechanical withstand tests. Further tests showed that the OVTs maintained their calibrations in the presence of "substation-like" changes in local conductor geometry


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