Changing current circuit for lichtbogenunterdrueckung

摘要

the wechselstromschaltkreis opens and closes contacts without generating an arc. when a direct current source is used after a break is created, the contacts are held in a predetermined condition or in a predetermined condition.a wechselschalter is provided in the necessary ways to select whether the contacts are open or closed to the direct current source is used after an interruption has occurred, or whether the earlier state of the contacts will be maintained.