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Modern Methods of Construction Problem Solving in Designing Various Types of Instrument Transformers

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  • Elzbieta Lesniewska

    (Institute of Mechatronics and Information Systems, Lodz University of Technology, 90-924 Lodz, Poland)

Abstract

Current and voltage instrument transformers are essential elements of the power system. They work like transformers but do not transmit power. Their task is to accurately transform currents or voltages during system operation, which are then used for measurement and protection. These devices are very precise, and their accuracy is defined by the IEC/CEN standards. Instrument transformers are located at all transformer stations, specialized high-voltage and high-power laboratories, and testing and teaching laboratories. Therefore, the design requirements are very different depending on their type (current, voltage, or combined), function (measuring, protection), and operating voltage (high, medium, and low). The requirements concern not only the operation but also the strength of the insulation system and, sometimes, the mechanical strength.

Suggested Citation

  • Elzbieta Lesniewska, 2022. "Modern Methods of Construction Problem Solving in Designing Various Types of Instrument Transformers," Energies, MDPI, vol. 15(21), pages 1-26, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:8199-:d:962133
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    References listed on IDEAS

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    1. Yuehui Chen & Zhao Huang & Zhenfeng Duan & Pengwu Fu & Guandong Zhou & Longfu Luo, 2019. "A Four-Winding Inductive Filtering Transformer to Enhance Power Quality in a High-Voltage Distribution Network Supplying Nonlinear Loads," Energies, MDPI, vol. 12(10), pages 1-13, May.
    2. Elzbieta Lesniewska, 2021. "Influence of the Selection of the Core Shape and Winding Arrangement on the Accuracy of Current Transformers with Through-Going Primary Cable," Energies, MDPI, vol. 14(7), pages 1-13, March.
    3. Giovanni Hernandez & Abner Ramirez, 2022. "Dielectric Response Model for Transformer Insulation Using Frequency Domain Spectroscopy and Vector Fitting," Energies, MDPI, vol. 15(7), pages 1-14, April.
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    Cited by:

    1. Michal Kaczmarek & Ernest Stano, 2023. "Challenges of Accurate Measurement of Distorted Current and Voltage in the Power Grid by Conventional Instrument Transformers," Energies, MDPI, vol. 16(6), pages 1-17, March.

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