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US 6,777,614 B1Granted
Surge suppressor with a bracing element
AssigneeSiemens Aktiengesellschaft
InventorOlaf Suenwoldt
Life of this patent
Estimating the term…
Abstract
The invention relates to a surge suppressor for a high voltage or a medium voltage. The pack of said surge suppressor consists of arrester elements (1, 2, 3) and terminal armatures (4, 5) and is axially held together by means of bracing elements (6, 7, 8) in the form of epoxy resin rods. Said bracing elements (6, 7, 8) are held in the terminal armatures in a self-locking manner by means of conical bracing cylinders (9, 10, 11, 12, 13, 14). Said bracing cylinders are arrested on the bracing elements (6, 7, 8) when a tensile force is applied in the conical bores of the terminal armatures.
Claims11
A surge arrester, comprising:
- at least one dissipation element arranged between two electrically conductive end fittings;
- and
- at least one bracing element attached to the two end fittings and, in an axial direction, holds together a stack formed from the dissipation element and the end fittings, wherein
- the bracing element arranged in a bracing sleeve in at least one end fitting,
- an external contour of the bracing sleeve tapers conically in an axial direction toward a center of the stack in a conical region,
- the bracing sleeve has a hole for holding a bracing element, the hole having boundary walls configured to move toward the interior of the hole at least in the conical region,
- the end fitting has a recess passing therethrough, for holding a clamping sleeve, into which recess the respective bracing sleeve can be at least partially pushed, with the conical region being deformed, and
- the bracing sleeve is self-locking such that the bracing sleeve is securely attached to the bracing element.
5 more elements
Dependencies are inferred from the claim text.