Abstract: A surge arrester includes a fluid-tight housing and a pressure relief assembly constructed to provide a fluid-conducting connection to the outside of the housing if a gas pressure inside the housing exceeds a threshold value. The pressure relief assembly is secured to the housing by at least one twist lock or lockable rotary closure. A corresponding manufacturing process for a surge arrester is also provided.

Abstract: A surge arrester includes a tubular housing and an end fitting which is connected to one end of the housing and on which a column having at least one electrical resistor is disposed. A support abuts the inner surface of the tubular housing in the region of the end fitting. The support has a recess in the longitudinal direction of the surge arrester, into which a pressure device is inserted. A method for installing a surge arrester is also provided.

Abstract: A surge arrester includes a tubular housing and an end fitting which is connected to one end of the housing and on which a column having at least one electrical resistor is disposed. A support abuts the inner surface of the tubular housing in the region of the end fitting. The support has a recess in the longitudinal direction of the surge arrester, into which a pressure device is inserted. A method for installing a surge arrester is also provided.

Abstract: A valve-type arrester includes a heat sink for dissipating heat from the interior of the valve-type arrester into the surroundings of the valve-type arrester. The heat sink has a circular-cylindrical main body with a base surface, a top surface parallel to the base surface and a casing surface connecting the base surface and the top surface. The heat sink additionally has a plurality of fins disposed on the main body, in which each fin is formed in the shape of a sheet or a leaf and disposed on the casing surface of the main body.

Abstract: An overvoltage arrester includes a column extending between first and second electrical terminals and having resistance elements being stacked on one another and having first and second opposite contact faces. The first and second contact faces of adjacent resistance elements adjoin one another. The column has a first group of resistance elements being directly connected by their first contact faces to the first electrical terminal and by their second contact faces to the second electrical terminal, and a second group of resistance elements being directly connected by their first contact faces to the second electrical terminal and by the second contact faces to the first electrical terminal. The result is a compact overvoltage arrester in which all of the resistance elements are connected electrically parallel with one another and which has a particularly high energy absorption capacity.

Abstract: A surge arrester includes at least one resistor element and a cage in which the at least one resistor element is disposed. The cage includes an upper holder, a lower holder and at least three insulating rods, which are each held at one respective rod end thereof by the upper holder and at the other respective rod end thereof by the lower holder. The upper holder and the lower holder are configured in such a way that they each enable at least two different positions for at least one of the insulating rods, relative to the two holders, and the at least one insulating rod can be positioned differently relative to the two holders.

Abstract: A surge arrester has a tube-shaped housing, an end fitting connected to an end of the housing, a varistor block arranged in the housing and a supporting element arranged in the region of the end fitting. The supporting element has a supporting ring which is in contact with the housing and which includes a cone and a clamping ring with a counter-cone that corresponds to the cone. The cone is braced to the counter-cone in such a manner that the supporting ring is pressed to the housing in a non-displaceable manner. The supporting element can thus also be used after the installation of the varistor block and also be removed.

Abstract: A surge arrester has a collar for fixing tensioning elements. The collar is extendable and is capable of absorbing released energy in the event of a fault and holding together the cage containing the tensioning elements. The collar, which fixes the tensioning elements in the radial direction, is positioned around the cage of the surge arrester formed from the tensioning elements. The form of the collar is such that it has defined deformation regions, with the result that the collar can expand and thus widen in the event of a force effect in the radial direction. If the varistor elements expand in the manner of an explosion during an overload, the collar is expanded and absorbs some of the released energy. This ensures that the cage is held together in the event of an overload and thus no fragments of the varistor elements can be flung out of the cage.

Abstract: A valve-type arrester includes a heat sink for dissipating heat from the interior of the valve-type arrester into the surroundings of the valve-type arrester. The heat sink has a circular-cylindrical main body with a base surface, a top surface parallel to the base surface and a casing surface connecting the base surface and the top surface. The heat sink additionally has a plurality of fins disposed on the main body, in which each fin is formed in the shape of a sheet or a leaf and disposed on the casing surface of the main body.

Abstract: A surge arrester has a tube-shaped housing, an end fitting connected to an end of the housing, a varistor block arranged in the housing and a supporting element arranged in the region of the end fitting. The supporting element has a supporting ring which is in contact with the housing and which includes a cone and a clamping ring with a counter-cone that corresponds to the cone. The cone is braced to the counter-cone in such a manner that the supporting ring is pressed to the housing in a non-displaceable manner. The supporting element can thus also be used after the installation of the varistor block and also be removed.

Abstract: A configuration includes a surge arrester. The surge arrester includes first and second connecting terminals. At least one connecting terminal is connected to an electrically conductive connecting path to contact the surge arrester. The connecting path is mounted in a universally jointed manner.

Abstract: A surge arrester includes at least one resistor element and a cage in which the at least one resistor element is disposed. The cage includes an upper holder, a lower holder and at least three insulating rods, which are each held at one respective rod end thereof by the upper holder and at the other respective rod end thereof by the lower holder. The upper holder and the lower holder are configured in such a way that they each enable at least two different positions for at least one of the insulating rods, relative to the two holders, and the at least one insulating rod can be positioned differently relative to the two holders.

Abstract: A surge arrester has a varistor element. A first and a second armature body are pressed against the varistor element by way of a bracing device. At least one of the armature bodies has a shoulder on which a cross-member of the bracing device is supported. A tensioning leg is fitted to the cross-member.

Abstract: A surge arrester has a collar for fixing tensioning elements. The collar is extendable and is capable of absorbing released energy in the event of a fault and holding together the cage containing the tensioning elements. The collar, which fixes the tensioning elements in the radial direction, is positioned around the cage of the surge arrester formed from the tensioning elements. The form of the collar is such that it has defined deformation regions, with the result that the collar can expand and thus widen in the event of a force effect in the radial direction. If the varistor elements expand in the manner of an explosion during an overload, the collar is expanded and absorbs some of the released energy. This ensures that the cage is held together in the event of an overload and thus no fragments of the varistor elements can be flung out of the cage.

Abstract: A surge arrester has a varistor element. A first and a second armature body are pressed against the varistor element by way of a bracing device. At least one of the armature bodies has a shoulder on which a cross-member of the bracing device is supported. A tensioning leg is fitted to the cross-member.

Abstract: A configuration includes a surge arrester. The surge arrester includes first and second connecting terminals. At least one connecting terminal is connected to an electrically conductive connecting path to contact the surge arrester. The connecting path is mounted in a universally jointed manner.

Abstract: A surge arrester has a discharge current path. The discharge current path is surrounded by an insulating sleeve. The insulating sleeve has at least one area that is optically transparent.

Abstract: A surge arrester includes a varistor arrangement with a plurality of varistor modules. Electrically conductive connections are provided between the varistor modules. The electrically conductive connections are secured by coupling arrangements. Due to the use of the varistor modules, surge arresters having a variety of electrical characteristics can be implemented.

Abstract: A surge arrester has a diverter element with a shielding element that increases the creepage path. The shielding element includes at least one shield. The shielding element is configured from an electrically insulating material and the diverter element forms a discharge current path. One section of the diverter element lying adjacent to the shield is not covered by the electrically insulating material. The diverter element is provided with a support element, which mechanically stabilizes a shield.