<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>With the popularization of digital transformer substations, it is of great research significance to study the upgrade of electronic transformer calibration devices, especially in the scene of small signals and high precision. In this paper, a compensation correction method is proposed to obtain more accurate primary side current parameters of the tuning device. By establishing the J-A magnetic characteristic model of the CT, the relationship between the magnetic characteristics of the CT and the corresponding terminal voltage is analyzed, and the relationship model between the terminal voltage and the corresponding excitation current is established. The model is used as the correction value in the feedback loop of the current measurement of the integral inspection device, to obtain the accurate primary side current. This method is applied to an electronic transformer calibrator inspection device system based on the Beidou system, which improves the data measurement accuracy of the device sensor and ensures that the measurement data accuracy reaches 0.1S.</p>
</abstract>

With the popularization of digital transformer substations, it is of great research significance to study the upgrade of electronic transformer calibration devices, especially in the scene of small signals and high precision. In this paper, a compensation correction method is proposed to obtain more accurate primary side current parameters of the tuning device. By establishing the J-A magnetic characteristic model of the CT, the relationship between the magnetic characteristics of the CT and the corresponding terminal voltage is analyzed, and the relationship model between the terminal voltage and the corresponding excitation current is established. The model is used as the correction value in the feedback loop of the current measurement of the integral inspection device, to obtain the accurate primary side current. This method is applied to an electronic transformer calibrator inspection device system based on the Beidou system, which improves the data measurement accuracy of the device sensor and ensures that the measurement data accuracy reaches 0.1S.

Analysis and Research on A High-precision Remote Transformer Calibration Device Considering The Influence of Excitation Current

China Electric Power Research Institute Co., Ltd

Applied Mathematics and Nonlinear Sciences

This work is licensed under the Creative Commons Attribution 4.0 International License.

With the popularization of digital transformer substations, it is of great research significance to study the upgrade of electronic transformer calibration...

Analysis and Research on A High-precision Remote Transformer Calibration Device Considering The Influence of Excitation Current

Online veröffentlicht: 20. Juli 2024

Seitenbereich: -

Eingereicht: 25. März 2024

Akzeptiert: 22. Juni 2024

DOI: https://doi.org/10.2478/amns-2024-1850

Schlüsselwörter
Electronic transformer calibrator, Excitation current, POS intelligent algorithm, Beidou system, Multi-channel sampling

© 2024 Jiliang Fu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Analysis and Research on A High-precision Remote Transformer Calibration Device Considering The Influence of Excitation Current

Online veröffentlicht: 20. Juli 2024

Seitenbereich: -

Eingereicht: 25. März 2024

Akzeptiert: 22. Juni 2024

DOI: https://doi.org/10.2478/amns-2024-1850

SchlüsselwörterElectronic transformer calibrator, Excitation current, POS intelligent algorithm, Beidou system, Multi-channel sampling

© 2024 Jiliang Fu et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Schlüsselwörter
Electronic transformer calibrator, Excitation current, POS intelligent algorithm, Beidou system, Multi-channel sampling