Impedance synthesis [instrument transformer calibration]

Author

Zoltán, István

Author_Institution

Dept. of Meas. & Inf. Syst., Budapest Univ. of Technol. & Econ., Hungary

Volume

3

fYear

2001

fDate

2001

Firstpage

1872

Abstract

Impedance synthesis methods applicable in active, hybrid and phantom burdens for instrument transformer calibration are discussed. Such types of burden are composed of a controlled source which loads the instrument transformer under test and an analog signal processor for observing the current and voltage of the device under test and controlling the source. The relatively high power dissipation of active burdens can be reduced by applying recuperation technology used in phantom burdens. The accuracy and linearity of passive burdens can be increased by means of hybrid burdens

Keywords

active networks; analogue circuits; calibration; electric impedance; instrument transformers; instrumentation; active burdens; analog signal processor; controlled source; current observation; hybrid burdens; impedance synthesis methods; instrument transformer calibration; phantom burdens; recuperation technology; voltage observation; Calibration; Imaging phantoms; Impedance; Instrument transformers; Linearity; Power dissipation; Signal processing; Signal synthesis; Testing; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE

Conference_Location

Budapest

ISSN

1091-5281

Print_ISBN

0-7803-6646-8

Type

conf

DOI

10.1109/IMTC.2001.929526

Filename

929526