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EP0589544A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Three phase arc furnace arrangement with inductor

Assignee: SMS Siemag AG
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Filing: 1993-06-22
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Granted: —
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Expires: 2013-06-22
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Abstract

Abstract Translated from German Die Erfindung betrifft eine dreiphasige Lichtbogenofenanlage, insbesondere zur Stahlbehandlung, mit einer zwischen dem öffentlichen Netz und einem Ofentransformator in Reihe geschalteten Drossel, zu der parallel ein Überbrückungstrenner angeordnet ist. Um äußerst schnell negative Rückwirkungen insbesondere auch schwache Netze vermeiden zu können, wird vorgeschlagen, daß der Überbrückungsschalter (20) eine an Steuerungselemente (31) angeschlossene Drehstrom-Thyristorbrücke (21) ist. The invention relates to a three-phase electric arc furnace system, in particular for steel treatment, with a choke connected in series between the public network and an furnace transformer, to which a bridging isolator is arranged in parallel. In order to be able to avoid negative repercussions extremely quickly, in particular also weak networks, it is proposed that the bypass switch (20) be a three-phase thyristor bridge (21) connected to control elements (31).

Inventors

  • 👤 Eckart Schunk

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 18:39
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/144; Y; Y02; Y02P; Y02P10/00; Y02P10/25

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