Surge voltage arrester
AssigneeAsea Brown Boveri AG
InventorsKlaus Giese, Walter Nydegger, Walter Schmidt
Life of this patent
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Abstract
This surge voltage arrester has two connecting fittings (1, 2) which are braced with respect to one another. At least one pellet (7) consisting of varistor material is clamped in between the connecting fittings (1, 2). It is intended to create a surge voltage arrester which can be produced using simple means and which, in addition, can be cast around in a simple manner. This is achieved in that at least two insulating clamping elements, which are arranged symmetrically, are provided for bracing the connecting fittings (1, 2). The clamping elements, the at least one pellet (7) and, partially, the connecting fittings (1, 2) have insulating plastic material cast around them to form a monolithic block.
Claims7
A surge voltage arrester having two connecting fittings (1, 2) which are braced with respect to one another, and having at least one pellet (7) which is clamped in between the connecting fittings (1, 2) and consists of varistor material, in which at least two insulating clamping elements, which are arranged symmetrically adjacent to the at least one pellet (7), are provided for bracing the connecting fittings (1, 2), and in which the at least two clamping elements, the at least one pellet (7) and, partially, the connecting fittings (1, 2) have insulating plastic material cast around them to form a monolithic block wherein
- rigid plastic strips (5) which can expand somewhat in the axial direction are provided as clamping elements, and
- these rigid plastic strips (5) are guided such that they fit by virtue of their shape in each of the connecting fittings (1, 2), and are connected thereto.
Dependencies are inferred from the claim text.