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Abstract <p>In the design of an electric arc furnace (EAF), it is important to ensure the symmetry in the inductive impedance of its secondary conductor. For this purpose, a design strategy known as triangulation is employed: at each functional segment of the secondary conductor, the phase axes are arranged in a perpendicular cross section along the sides of an equilateral triangle. However, the symmetry established during design is frequently disrupted during furnace operation. The main reason for this is untimely electrode repositioning due to unequal phase consumption or electrode breakage. The article investigates the limits of operational asymmetry in inductive impedance for various secondary conductor configurations and for different deviations in electrode lengths from symmetry that can occur during EAF operation.</p>

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Operational Asymmetry of the Secondary Conductor in an Ultra-High-Power Electric Arc Furnace

  • 期刊论文

  • 发表日期：

    2025年7月1日

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  • A. I. Aliferov,
  • L. P. Goreva,
  • R. A. Bikeev

摘要

Abstract

In the design of an electric arc furnace (EAF), it is important to ensure the symmetry in the inductive impedance of its secondary conductor. For this purpose, a design strategy known as triangulation is employed: at each functional segment of the secondary conductor, the phase axes are arranged in a perpendicular cross section along the sides of an equilateral triangle. However, the symmetry established during design is frequently disrupted during furnace operation. The main reason for this is untimely electrode repositioning due to unequal phase consumption or electrode breakage. The article investigates the limits of operational asymmetry in inductive impedance for various secondary conductor configurations and for different deviations in electrode lengths from symmetry that can occur during EAF operation.