Accurate voltage measurement with electric field sampling using permittivity-shielding

Author

Chavez, Patrick P. ; Rahmatian, Farnoosh ; Jaeger, Nicolas A F

Author_Institution

Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada

Volume

17

Issue

2

fYear

2002

fDate

4/1/2002 12:00:00 AM

Firstpage

362

Lastpage

368

Abstract

This paper introduces permittivity-shielding which enables the measurement of voltage with very few electric field sensors. Voltage sensor designs using permittivity-shielding can exploit existing optical sensor technology without the need for the expensive and potentially hazardous insulation found in many modern optical voltage transducers (OVTs). Numerical simulations demonstrate that a voltage sensor consisting of 100 MΩ shielding and six electric field sensors, or less, mounted inside an "off-the-shelf" stand-off insulator can achieve IEC 60044-2 0.2 metering class accuracies (<0.2% magnitude error and <10 minutes phase error) even in the presence of strong stray field effects

Keywords

electric field measurement; electric sensing devices; insulators; permittivity; shielding; voltage measurement; IEC 60044-2 0.2 metering class accuracies; dielectric materials; electric field effects; electric field measurement; electric field sampling; electric field sensors; high-voltage techniques; numerical simulations; optical sensor technology; permittivity-shielding; stand-off insulator; strong stray field effects; voltage measurement; voltage sensor designs; Dielectrics and electrical insulation; Electric variables measurement; IEC standards; Numerical simulation; Optical design; Optical sensors; Permittivity measurement; Sampling methods; Transducers; Voltage measurement;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.997900

Filename

997900