Disconnector Or Earthing Switch

Abstract: The invention relates to a disconnector or earthing switch (1) for connecting three conductors (2) of different phases to a respective switching tube (3), comprising a rotatable drive shaft (4) comprising a worm (7) and configured for operating the dis-connector or earthing switch (1), the three respective switching tubes (3), which are arranged axially together movable between a connected position configured for con-necting the three conductors (2) and a disconnected position configured for not con-necting the three conductors (2), a partially toothed worm wheel (5) configured for translating a rotation of the worm (7) into the axial movement of the three switching tubes (3) between the connected position and the disconnected position, whereby the partially toothed worm wheel (5) is unengaged with the worm (7) in the connected position and the disconnected position, and a re-engagement device (6) con-figured for again engaging the partially toothed worm wheel (5) with the worm (7) in the connected position and the disconnected position. (Figure 1)

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