A setup for the measurement of the frequency response of voltage measurement transformers under actual waveform conditions is presented. It is based on a two-step procedure that makes use of high voltage gas insulated capacitors and a digital bridge. It allows calibrations using distorted waveforms, with a fundamental tone at medium voltage level and superimposed harmonics up to 20% and 15 kHz. Combined standard uncertainty in the measurement of the voltage transformer (VT) error is estimated at 200 µV/V for the ratio error and 300 µrad for the phase displacement up to 10 kHz. First applications to the measurement of the frequency response of VTs with different rated primary voltages up to 50 kV are presented.

Frequency Response of MV Voltage Transformer Under Actual Waveforms / Crotti, Gabriella; Gallo, Daniele; Giordano, Domenico; Landi, Carmine; Luiso, Mario; Modarres, Mohammad. - In: IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT. - ISSN 0018-9456. - 66:6(2017), pp. 1146-1154. [10.1109/TIM.2017.2652638]

Frequency Response of MV Voltage Transformer Under Actual Waveforms

CROTTI, GABRIELLA;GIORDANO, DOMENICO;
2017

Abstract

A setup for the measurement of the frequency response of voltage measurement transformers under actual waveform conditions is presented. It is based on a two-step procedure that makes use of high voltage gas insulated capacitors and a digital bridge. It allows calibrations using distorted waveforms, with a fundamental tone at medium voltage level and superimposed harmonics up to 20% and 15 kHz. Combined standard uncertainty in the measurement of the voltage transformer (VT) error is estimated at 200 µV/V for the ratio error and 300 µrad for the phase displacement up to 10 kHz. First applications to the measurement of the frequency response of VTs with different rated primary voltages up to 50 kV are presented.
File in questo prodotto:
File Dimensione Formato  
Frequency Response of MV Voltage Transformer under Actual Waveform_17_PostPr.pdf

accesso aperto

Descrizione: Post Print Version
Tipologia: accepted manuscript (author’s post-print)
Licenza: Pubblico - Tutti i diritti riservati
Dimensione 534.24 kB
Formato Adobe PDF
534.24 kB Adobe PDF Visualizza/Apri
Frequency Response of MV Voltage Transformer Under Actual Waveforms.pdf

non disponibili

Descrizione: Versione Editoriale
Tipologia: final published article (publisher’s version)
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 2.23 MB
Formato Adobe PDF
2.23 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11696/54704
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 56
  • ???jsp.display-item.citation.isi??? 42
social impact