An innovative method for voltage measurement: applications up to 550 kV GIS

Author

Dupraz, J.P. ; Montillet, G.F.

Author_Institution

ALSTOM T & D S.A., Villeurbanne, France

Volume

2

fYear

2003

fDate

7-12 Sept. 2003

Firstpage

460

Abstract

Extraordinary progress in digital technologies (increased level of integration, drop in prices) during the last five years has made it possible to industrialize and use alternative electronic solutions instead of the conventional inductive type instrument transformers. Electronic solutions seem to be the answer for several types of applications and particularly for gas insulated substations (GIS). This paper lists the basic technical equations of this sensor, its principle and the influences of gas density drifts, trapped charges and bus bar eccentricity, and its advantages due to the concept. The tests performed are described, and some applications of this electronic solution in today´s substations are listed.

Keywords

gas insulated substations; instrument transformers; potential transformers; voltage measurement; 550 kV; bus bar eccentricity; capacitive electronic voltage transformer; digital technologies; gas density drifts; gas insulated substations; trapped charges; voltage measurement; voltage sensors; Electrical equipment industry; Electronics industry; Equations; Gas insulation; Geographic Information Systems; Industrial electronics; Instrument transformers; Power transformer insulation; Substations; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2003 IEEE PES

Print_ISBN

0-7803-8110-6

Type

conf

DOI

10.1109/TDC.2003.1335317

Filename

1335317