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When the converter transformer is repaired or tested, the lead of the transformer's high and medium voltage side is removed and the subsequent connecting work is time-consuming and laborious. This method not only increases the risk of personnel injury, but also causes irreversible loss to the lead connector, which has a small impact on the reliability of its power supply. In order to avoid these situations, the method of not removing the lead is also developed. This article uses ATP software to establish a commutation transformation simulation model with and without disconnecting the leads. Based on this model and combined with the frequency response method, the frequency domain and time domain characteristic curves obtained after outputting low, medium, and high pulse signals are compared respectively, this is used to judge the feasibility of the method of not removing the leads in the converter transformer.

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Simulation Study on Frequency Response of Transformer Windings Without Removing Leads

  • 会议论文

  • 发表日期：

    2025年

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  • Yu Shang,
  • Qiang Liu,
  • Chen Mao,
  • Fan Wang,
  • Ziwei Wang,
  • Jian Gao,
  • Haonan Xie,
  • Tianyan Jiang

摘要

When the converter transformer is repaired or tested, the lead of the transformer's high and medium voltage side is removed and the subsequent connecting work is time-consuming and laborious. This method not only increases the risk of personnel injury, but also causes irreversible loss to the lead connector, which has a small impact on the reliability of its power supply. In order to avoid these situations, the method of not removing the lead is also developed. This article uses ATP software to establish a commutation transformation simulation model with and without disconnecting the leads. Based on this model and combined with the frequency response method, the frequency domain and time domain characteristic curves obtained after outputting low, medium, and high pulse signals are compared respectively, this is used to judge the feasibility of the method of not removing the leads in the converter transformer.