Modelling of voltage transformer performance in power system harmonic frequency range

Author

Luszcz, Jaroslaw ; Moson, Ireneusz

Author_Institution

Fac. of Electr. & Control Eng., Gdansk Univ. of Technol., Gdansk

fYear

2008

fDate

10-13 June 2008

Firstpage

1

Lastpage

4

Abstract

Many problems related to the voltage and current harmonics imposed in contemporary power systems are observed nowadays. The paper presents the voltage harmonic transfer capability of the voltage transformer usually used for the power quality measurement in the middle and high voltage grids. A simplified lumped parameters circuit model of the voltage transformer is proposed and verified by experimental investigations. The results obtained prove that the wide band ripples of the voltage transformer transfer characteristic can result an extra measurement errors that should be taken into account in order to achieve applicable accuracy.

Keywords

lumped parameter networks; potential transformers; power system harmonics; current harmonics; lumped parameters circuit model; power system harmonic frequency range; voltage harmonic transfer capability; voltage transformers; Circuits; Frequency; Measurement errors; Power measurement; Power quality; Power system harmonics; Power system measurements; Power system modeling; Voltage transformers; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Nonsinusoidal Currents and Compensation, 2008. ISNCC 2008. International School on

Conference_Location

Lagow

Print_ISBN

978-1-4244-2129-9

Electronic_ISBN

978-1-4244-2130-5

Type

conf

DOI

10.1109/ISNCC.2008.4627517

Filename

4627517