On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers

The accuracy evaluation of instrument transformers is always a key task when proper control and management of the power network is required. In particular, accuracy becomes a critical aspect when the grid or the instrumentation itself is operating at conditions different from the rated ones. However...

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Main Authors: Alessandro Mingotti, Lorenzo Bartolomei, Lorenzo Peretto, Roberto Tinarelli
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/20/5810
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author Alessandro Mingotti
Lorenzo Bartolomei
Lorenzo Peretto
Roberto Tinarelli
author_facet Alessandro Mingotti
Lorenzo Bartolomei
Lorenzo Peretto
Roberto Tinarelli
author_sort Alessandro Mingotti
collection DOAJ
description The accuracy evaluation of instrument transformers is always a key task when proper control and management of the power network is required. In particular, accuracy becomes a critical aspect when the grid or the instrumentation itself is operating at conditions different from the rated ones. However, before focusing on the above non-rated conditions, it is important to fully understand the instrument transformer behavior at rated conditions. To this end, this work analyzed the accuracy behavior of legacy, inductive, and low-power voltage transformers over long periods of time. The aim was to find patterns and correlations that may be of help during the modelling or the output prediction of voltage transformers. From the results, the main differences between low-power and inductive voltage transformers were pointed out and described in detail.
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spelling doaj.art-c7de0db113e44b66b283a64f24fae84d2023-11-20T17:04:46ZengMDPI AGSensors1424-82202020-10-012020581010.3390/s20205810On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument TransformersAlessandro Mingotti0Lorenzo Bartolomei1Lorenzo Peretto2Roberto Tinarelli3Department of Electrical, Electronic and Information Engineering, Guglielmo Marconi Alma Mater Studiorum, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Electrical, Electronic and Information Engineering, Guglielmo Marconi Alma Mater Studiorum, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Electrical, Electronic and Information Engineering, Guglielmo Marconi Alma Mater Studiorum, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Electrical, Electronic and Information Engineering, Guglielmo Marconi Alma Mater Studiorum, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyThe accuracy evaluation of instrument transformers is always a key task when proper control and management of the power network is required. In particular, accuracy becomes a critical aspect when the grid or the instrumentation itself is operating at conditions different from the rated ones. However, before focusing on the above non-rated conditions, it is important to fully understand the instrument transformer behavior at rated conditions. To this end, this work analyzed the accuracy behavior of legacy, inductive, and low-power voltage transformers over long periods of time. The aim was to find patterns and correlations that may be of help during the modelling or the output prediction of voltage transformers. From the results, the main differences between low-power and inductive voltage transformers were pointed out and described in detail.https://www.mdpi.com/1424-8220/20/20/5810accuracyinstrument transformerslow-power instrument transformersvoltage transformerstemperatureratio error
spellingShingle Alessandro Mingotti
Lorenzo Bartolomei
Lorenzo Peretto
Roberto Tinarelli
On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers
Sensors
accuracy
instrument transformers
low-power instrument transformers
voltage transformers
temperature
ratio error
title On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers
title_full On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers
title_fullStr On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers
title_full_unstemmed On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers
title_short On the Long-Period Accuracy Behavior of Inductive and Low-Power Instrument Transformers
title_sort on the long period accuracy behavior of inductive and low power instrument transformers
topic accuracy
instrument transformers
low-power instrument transformers
voltage transformers
temperature
ratio error
url https://www.mdpi.com/1424-8220/20/20/5810
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AT lorenzobartolomei onthelongperiodaccuracybehaviorofinductiveandlowpowerinstrumenttransformers
AT lorenzoperetto onthelongperiodaccuracybehaviorofinductiveandlowpowerinstrumenttransformers
AT robertotinarelli onthelongperiodaccuracybehaviorofinductiveandlowpowerinstrumenttransformers