Title | Accurate voltage measurement with electric field sampling using permittivity-shielding |
Publication Type | Journal Article |
Year of Publication | 2002 |
Authors | Chavez, P. P., F. Rahmatian, and N. A. F. Jaeger |
Journal | Power Delivery, IEEE Transactions on |
Volume | 17 |
Pagination | 362 -368 |
Date Published | apr. |
ISSN | 0885-8977 |
Keywords | dielectric materials, electric field effects, electric field measurement, electric field sampling, electric field sensors, electric sensing devices, high-voltage techniques, IEC 60044-2 0.2 metering class accuracies, insulators, numerical simulations, optical sensor technology, permittivity, permittivity-shielding, shielding, stand-off insulator, strong stray field effects, voltage measurement, voltage sensor designs |
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 M Omega; 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 ( lt;0.2% magnitude error and lt;10 minutes phase error) even in the presence of strong stray field effects |
URL | http://dx.doi.org/10.1109/61.997900 |
DOI | 10.1109/61.997900 |