| 摘要 |
<p>The invention relates to a three-phase arc furnace installation, especially for treating steel, having an inductor which is connected in series between the public mains power supply and a furnace transformer and in parallel with which a bridging isolator is arranged. In order to be able to prevent negative reactions, especially on weak mains power supplies, extremely quickly, it is proposed that the bridging switch (20) be a three-phase thyristor bridge (21) which is connected to control elements (31). <IMAGE></p> |
