The Reference Wideband Inductive Current Transformer
Energies, 2023 The aim of this paper is to show that the developed inductive current transformer may ensure the required wideband transformation accuracy and it may be applied, as the reference source, in the measuring system for the evaluation of the transformation ...
Michal Kaczmarek +2 more
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Analytical Investigation of Primary Waveform Distortion Effect on Magnetic Flux Density in the Magnetic Core of Inductive Current Transformer and Its Transformation Accuracy [PDF]
SensorsThis paper analyzes how distortion in the primary current waveform affects the magnetic flux density in the magnetic core of an inductive current transformer and its transformation accuracy.
Michal Kaczmarek, Kacper Blus
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Why Should We Test the Wideband Transformation Accuracy of Inductive Current Transformers?
Energies, 2022 Inductive current transformers are characterized by different transformation accuracies for higher harmonics of distorted primary currents. Therefore, it is highly required to perform the tests of their metrological properties to choose the best unit ...
Ernest Stano +2 more
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Development of Inductive Current Transformer 400/5/1 of Class 0.2S for Frequency Range 50 Hz–5 kHz [PDF]
SensorsThis paper is devoted to the development of a window-type inductive current transformer (iCT) with a rated primary current equal to 400 A and two secondary windings with rated currents of 5 A and 1 A. Its novelty concerns the presentation of this process
Michal Kaczmarek, Blazej Pacholczyk
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Energies, 2022 The paper presents investigations and analysis of the parameters of the magnetic part of the equivalent circuit of the inductive CT in the frequencies range from 50 Hz to 5 kHz.
Ernest Stano +2 more
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Nonlinearity of the magnetization characteristic of the magnetic core in calculation of current error and phase displacement values of inductive CTs [PDF]
Scientific ReportsThis paper explores the implications of employing a load exhibiting a power factor of 1 to test the transformation accuracy of an inductive current transformer with an apparent power below 5 VA. It offers an explanation of the change in current error and
Michał Kaczmarek
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Energies, 2022 This manuscript presents performed laboratory studies and the analysis of the impact of current shunt values used in the differential connection on the wideband metrological performance of inductive current transformers.
Michal Kaczmarek +2 more
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Nonlinearity of Magnetic Core in Evaluation of Current and Phase Errors of Transformation of Higher Harmonics of Distorted Current by Inductive Current Transformers [PDF]
IEEE Access, 2020 The novelty of the paper contributes to the increase of the reliability of the methods used for evaluation of the inductive CTs accuracy of transformation of the distorted current.
Michal Kaczmarek, Ernest Stano
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Thermal Aspect in Operation of Inductive Current Transformers and Transducers
EnergiesAn increase in the temperature of the magnetic core causes narrowing of its hysteresis loop and reduction in the saturation magnetic flux density. Therefore, at the same operating point on the magnetization characteristic, the nonlinear effect may become
Michal Kaczmarek, Artur Szczesny
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Energies, 2023 In this review article, ideas for the development of measuring methods and setups to test inductive instrument transformer accuracy for the transformation of distorted current or voltage are analyzed. This article proposes limiting values for ratio error
Michal Kaczmarek, Ernest Stano
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