| 摘要 |
In a high-voltage circuit-breaker having arcing contact pieces that are movable relatively to each other, and an axially movable insulating nozzle, provision is made for an axially displaceable field electrode on the side lying opposite the drive. Used as an auxiliary drive for the field electrode is a first coupling shank which is connected to the axially movable insulating nozzle and which acts upon a gearing composed of a swivelling lever with a control pin a connecting link guide and a second coupling shank connected to the control pin and to the field electrode. For additionally driving the second arcing contact piece surrounded by the field electrode, the first coupling shank, with the assistance of a journal, also acts upon a deflection gear composed of a two-armed lever, having a fork-like design at one end for the coulisse-type guidance of the journal, and a pendulum element at the other end of the lever coupled to the second arcing contact piece.
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