| Zugriffsnummer | 51118 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Characterization of instrument transformers under realistic conditions: impact of single and combined influence quantities on their wideband behavior |
| Autor(in); Institution |
Letizia, Palma Sara; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY
Crotti, Gabriella; Istituto Nazionale di Ricerca Metrologica (INRIM), Torino, ITALY
Mingotti, Alessandro; University of Bologna, Department of Electrical, Electronic and Information Engineering, Alma Mater Studiorum, Bologna, ITALY
Tinarelli, Roberto; University of Bologna, Department of Electrical, Electronic and Information Engineering, Alma Mater Studiorum, Bologna, ITALY
Agazar, Mohamed; Laboratoire National de Métrologie et d’Essais (LNE), Paris, FRANCE
Istrate, Daniela; Laboratoire National de Métrologie et d’Essais (LNE), Paris, FRANCE
Ayhan, Burak; National Metrology Institute, Power and Energy Laboratory, TÜBITAK , Gebze, Kocaeli, TÜRKIYE
Çayci, Hüseyin; National Metrology Institute, Power and Energy Laboratory, TÜBITAK , Gebze, Kocaeli, TÜRKIYE
Stiegler, Robert; TUD Dresden University of Technology, Institute of Electrical Power Systems and High Voltage Engineering, Dresden, GERMANY
|
| Quelle/Jahr | Feature Papers in Physical Sensors 2023. Sensors: 23 (2023), 18, 1 - 30 |
| Artikelnummer | 7833 |
| Availability | [online only] |
| ISSN | 1424-8220 (online) |
| DOI | |
| Verlag | Basel: MDPI |
| Freie Schlagworte | instrument transformers ; distribution grids ; accuracy ; influence quantity ; power quality ; harmonics ; measurement traceability |
| Zusammenfassung | Instrument transformers (ITs) play a key role in electrical power systems, facilitating the accurate monitoring and measurement of electrical quantities. They are essential for measurement, protection, and metering in transmission and distribution grids and accurately reducing the grid voltage and current for low-voltage input instrumentation. With the increase in renewable energy sources, electronic converters, and electric vehicles connected to power grids, ITs now face challenging distorted conditions that differ from the nominal ones. The study presented in this paper is a collaborative work between national metrology institutes and universities that analyzes IT performance in measuring distorted voltages and currents in medium-voltage grids under realistic conditions. Both current and voltage measuring transformers are examined, considering influence quantities like the temperature, mechanical vibration, burden, adjacent phases, and proximity effects. The study provides detailed insights into measurement setups and procedures, and it quantifies potential errors arising from IT behavior in measuring distorted signals in the presence of the various considered influence quantities and their combinations. The main findings reveal that the temperature has the most evident impact on the inductive voltage transformer performance, as well as the burden, causing significant changes in ratio error and phase displacement at the lower temperatures. As for low-power ITs, establishing a priori the effects of adjacent phases and proximity on the frequency responses of low-power ITs is a complex matter, because of their different characteristics and construction solutions. |
| Kostenfreier Zugang | Open Access Gold |
| Rechteinformation | CC BY 4.0 ; Creative Commons Attribution 4.0 License |
| Themenbereich der Metrologie | Elektrizität und Magnetismus |
| Forschungsprojekt | 19NRM05: IT4PQ: Measurement methods and test procedures for assessing accuracy of instrument transformers for power quality measurements |
| Förderinformationen (1) |
Förderername: European Commission (EC)
Förderer ID: 0000 0001 2242 8989 Förderer ID Typ: ISNI Förderprogramm: EMPIR 2019 Normative Titel der Förderung: 19NRM05: IT4PQ: Measurement methods and test procedures for assessing accuracy of instrument transformers for power quality measurements Förderungsnummer: 19NRM05 |
Zitierung
Letizia, P. S., Crotti, G., Mingotti, A., Tinarelli, R., Chen, Y., Mohns, E., Agazar, M., Istrate, D., Ayhan, B., Çayci, H., & Stiegler, R. (2023). Characterization of instrument transformers under realistic conditions: impact of single and combined influence quantities on their wideband behavior. Sensors, 23(18), 1–30. https://doi.org/10.3390/s23187833