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<p>The arrangement and phase displacement group of the winding of three-phase power transformers are the key parameters that determine the operating mode (currents and voltages) of the transformer. Current regulatory documents, in particular GOST and IEC standards, recommend methods for determining the phase displacement group of the winding. However, guidelines for determining the winding arrangement are lacking. A method for determining the winding arrangements of three-phase transformers is developed based on theoretical and experimental studies and measuring no-load losses at low voltage. The method can be used to determine the arrangement of both primary and secondary windings of three-phase transformers with delta, star, or zigzag windings.</p>

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Determination of Transformer Winding Arrangements Based on Measurements of No-Load Losses at Low Voltage

  • 期刊论文

  • 发表日期：

    2025年5月1日

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  • V. S. Larin,
  • M. A. Rydkin,
  • S. A. Kushnarev,
  • P. M. Mamonov

摘要

The arrangement and phase displacement group of the winding of three-phase power transformers are the key parameters that determine the operating mode (currents and voltages) of the transformer. Current regulatory documents, in particular GOST and IEC standards, recommend methods for determining the phase displacement group of the winding. However, guidelines for determining the winding arrangement are lacking. A method for determining the winding arrangements of three-phase transformers is developed based on theoretical and experimental studies and measuring no-load losses at low voltage. The method can be used to determine the arrangement of both primary and secondary windings of three-phase transformers with delta, star, or zigzag windings.