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X-Pact® Thyristor Control


  • Optimal active power input combined with increased arc power portion at the same time with reduced electrodes movement for lower reduction process disruption


  • Furnace power control with high-power thyristors on the transformer secondary side (SMS group patent)

Technical advantages

  • Higher productivity due to increased, stable arc power
  • Smoother furnace operation also in higher power range, enhanced smelting performance
  • Increased furnace flexibility related to raw materials quality variation


  • Higher productivity by efficient power input
  • Production increase up to 15 %
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