Results 1 to 10 of about 162,004 (308)

The Reference Wideband Inductive Current Transformer

open access: yesEnergies, 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
doaj   +5 more sources

Analytical Investigation of Primary Waveform Distortion Effect on Magnetic Flux Density in the Magnetic Core of Inductive Current Transformer and Its Transformation Accuracy [PDF]

open access: yesSensors
This 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
doaj   +5 more sources

Understanding the Frequency Characteristics of Current Error and Phase Displacement of the Corrected Inductive Current Transformer

open access: yesEnergies, 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
doaj   +5 more sources

Development of Inductive Current Transformer 400/5/1 of Class 0.2S for Frequency Range 50 Hz–5 kHz [PDF]

open access: yesSensors
This 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
doaj   +5 more sources

Why Should We Test the Wideband Transformation Accuracy of Inductive Current Transformers?

open access: yesEnergies, 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
doaj   +3 more sources

The Method to Determine the Turns Ratio Correction of the Inductive Current Transformer

open access: yesEnergies, 2021
This paper presents the method for evaluation of the turns ratio correction of the inductive current transformer using the magnetization curves determined at the non-load state and in the load conditions.
Ernest Stano
doaj   +4 more sources

New Approach to Evaluate the Transformation Accuracy of Inductive CTs for Distorted Current

open access: yesEnergies, 2023
This paper presents a newly developed method to determine the values of current error and phase displacement for the transformation of distorted current harmonics by the inductive current transformers.
Michal Kaczmarek, Ernest Stano
doaj   +2 more sources

Evaluation of the Current Shunt Influence on the Determined Wideband Accuracy of Inductive Current Transformers

open access: yesEnergies, 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
doaj   +2 more sources

Design of a Current-Transformer Based Inductive Coupler for Power-Line Communications

open access: yesIEEE Transactions on Power Delivery, 2023
In this paper, the design of a current-transformer based inductive coupler for power-line communications is documented. A worst-case design is presented in a step-by-step fashion and experimentally confirmed by doing verification measurements in the ...
Petrus A. Janse Van Rensburg   +2 more
openaire   +2 more sources

Use of COMTRADE Fault Current Data to Test Inductive Current Transformers [PDF]

open access: yes2019 II Workshop on Metrology for Industry 4.0 and IoT (MetroInd4.0&IoT), 2019
This paper presents a study on the inductive current transformer behaviour when subjected to distorted actual waveforms. Typical tools adopted to deal with such a condition, as the well-known ratio error, phase error, frequency response, etc. not always provide satisfactory results in all the possible operating condition. In addition, Standards lack in
Mingotti, Alessandro   +3 more
openaire   +3 more sources

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