An Optically Isolated Hybrid Two-Stage Current Transformer for Measurements at High Voltage

Author

Djokic, Branislav ; So, Eddy

Author_Institution

Inst. for Nat. Meas. Stand., National Res. Council of Canada, Ottawa, Ont.

Volume

2

fYear

2005

fDate

16-19 May 2005

Firstpage

1044

Lastpage

1047

Abstract

The development of a high-voltage reference current measurement system for on-site/in-situ calibrations in power systems is described in the paper. The system is based on an optically isolated hybrid two-stage current transformer with electronic circuitry that performs A/D conversion. It features a fiber optic link for data transmission to a ground station, and a laser-driven fiber optic link for supplying power to the electronic circuitry of the remote module at high voltage. The ratio accuracy of the current measurement is estimated to be better than 100middot10^-6

Keywords

analogue-digital conversion; calibration; current transformers; electric current measurement; optical links; power systems; A/D conversion; current measurement; current transformer; data transmission; fiber optic link; optically powered circuits; power supply; power system; Calibration; Circuits; Current measurement; Current transformers; Data communication; Hybrid power systems; Optical fibers; Power system measurements; Satellite ground stations; Voltage measurement; current measurement; current transformer; laser optically powered circuits; power supply; power system;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE

Conference_Location

Ottawa, Ont.

Print_ISBN

0-7803-8879-8

Type

conf

DOI

10.1109/IMTC.2005.1604300

Filename

1604300