DE202018105277U1 - Surge arrester assembly comprising multiple in-housing surge arresters and internal wiring for protection of low voltage power supply systems - Google Patents

Abstract

A surge arrester arrangement comprising a plurality of surge arresters housed in a housing and internal wiring for protecting low voltage systems, the housing having a lower surface having recesses through which a plurality of electrical plug contacts are routed, characterized in that the plug contacts are nose-like and under one Angle deviate from the vertical with respect to the housing bottom, wherein the respective plug contacts per arrangement type are identical.

Description

The invention relates to a surge arrester arrangement comprising a plurality of surge arresters located in a housing and internal wiring for protecting low-voltage systems, wherein the housing has a lower side, which has recesses through which a plurality of electrical plug contacts is guided, according to the preamble of claim 1.

From the DE 10 2004 037 083 B4 is a surge arrester arrangement with an executable as part of a housing carrier plate previously known.

The surge arresters, which are designed in particular for the protection of low-voltage supply systems, are fixed electrically prefabricated on the support plate or in the housing and provided with external connection means. For direct mounting on a busbar system with multiple busbars clutch-like means for electrical and mechanical connection are arranged on or in the underside of the carrier plate in the grid spacing of the busbar system. The internal electrical wiring is designed low inductance and shock current resistant. The underside of the support plate has at the distance of the busbar of the busbar system extending groove-shaped recesses or recesses, being fastened and guided in these spring contact elements.

From the DE 38 04 294 C1 is a feed adapter for a busbar system previously known. This adapter is used for electrically connecting connecting cables to the busbars, in which in one placed on the busbar plastic adapter part, aligned with the busbars, one contact piece per busbar is held, in which each contact piece by means of a U-shaped clamp electrically conductive the associated busbar is connectable. The clip engages behind the busbar with molded on the free ends of their side legs clamping ends. An adjustable in a threaded bore of the web of the clamp clamping screw clamps the busbar with the contact piece. The contacts are provided outside the clamping area of the bracket with threaded holes for connecting the connecting cables by means of terminal screws. The proposed arrangement of the contact pieces and the brackets and the connection contacts for the connection lines, a connection adapter is created, which manages even with a three-wire busbar system with minimal space requirement in the longitudinal direction of the busbar.

Furthermore, supply adapters for busbars are previously known, for example, the type K96ESA5 Hager Elektro S.A. should be referenced. Such a feed adapter is able to accommodate massive or multi-core copper wires with or without wire end ferrules in its connection line openings, without a screw terminal must be operated (see www.hagergroup.net).

From the foregoing, it is an object of the invention to provide a surge arrester arrangement with multiple, located in a housing surge arresters and internal wiring for the protection of low voltage systems, starting from a known plug-in part, the arrangement is to be developed so that a direct electrical contacting and mechanical connection can be done with a feed adapter, without the operation of screw terminals is required, so that a total of a tool-free installation is possible.

The object of the invention is achieved by the surge arrester arrangement according to the feature combination according to claim 1, wherein the dependent claims comprise at least expedient refinements and developments.

It is therefore assumed that a surge arrester arrangement with several, located in a housing surge arresters and corresponding internal wiring. The surge arrester arrangement is used in particular for the protection of low-voltage systems.

Surge arresters, in particular so-called lightning current arresters, are preferably used at the entrance to the building in the main power supply system or immediately after the counter in order to protect the downstream electrical installation from negative effects of the lightning impulse current or against overvoltages.

Since one of the main coupling paths of these conducted disturbances form the lines introduced into the system itself, it is necessary to install the protection devices immediately at the building entrance. When installing protective devices, particular care must be taken to ensure that optimum protection can be achieved, which is also specified in the relevant installation regulations.

Busbar systems or busbar systems for power distribution have long been known from the prior art and have been in use not only because of their reliability, but also because of the given Flexibility enforced compared to other installation techniques.

If supply adapters are mounted on busbars, for example, supply adapters for busbars with the dimensions 5 x 12 mm and a busbar distance of 40 mm, a contacting of the busbars can be made in a simple manner.

Assuming a surge arrester arrangement comprising a plurality of surge arresters and internal wiring located in a housing, wherein the housing has a bottom, which has recesses through which a plurality of electrical plug contacts is guided, the idea according to the invention, the plug contacts form nose-like and under a Angle deviating from the vertical with respect to the bottom of the housing to orient. The respective plug contacts are formed identically depending on the corresponding Überspannungsableiteranordnungstyp.

The now in the same direction obliquely extending plug contacts can be introduced via a horizontally running to the feed adapter mounting movement in the local line recordings. By sliding in a slightly vertical downward direction locking of the plug contacts takes place in the corresponding, already applied to the busbars feeder adapter.

The contact system can be made very simple, since only plug contacts in the sense of oblique pins or noses are provided. Similarly, inclined connecting plates are designed as plug contacts.

Preferably, the plug contacts according to the invention are rigid and have a round cross-section.

In this sense, the plug contacts can also be realized as plug-pin contacts.

The skew, the distance between them, the length and the cross-section of the plug contacts is aligned with the formation of a known feed adapter for a busbar system and implemented in this respect complementary.

The surge arrester arrangement is realized in this sense as a compact module for direct insertion with integrated wiring. The arrangement may have a single or collective display based on the state of the surge arrester used. In the same sense, a possibility for connection to a telecommunications device is provided.

The internal wiring of the surge arrester arrangement can be realized according to the network form, for example TT or TN.

The invention will be explained below with reference to an embodiment and with the aid of figures.

• 1 eine Darstellung eines angedeuteten Sammelschienensystems mit einem noch nicht mit dem Sammelschienensystem verbundenen Einspeiseadapter sowie einer erfindungsgemäßen Überspannungsableiteranordnung im Zustand der noch nicht erfolgten Montagebewegung hinsichtlich der Leitungsaufnahmen im Einspeiseadapter;
• 2 eine Darstellung ähnlich derjenigen nach 1, wobei jedoch der Einspeiseadapter bereits mechanisch und elektrisch mit dem Sammelschienensystem verbunden ist und die Montagebewegung für die Überspannungsableiteranordnung noch aussteht; sowie
• 3 eine Darstellung im Zustand der mit dem Einspeiseadapter verbundenen Überspannungsableiteranordnung unter Nutzung der bei letzteren vorhandenen nasenartigen Steckkontakte, die unter einem Winkel abweichend von der Senkrechten bezüglich der Gehäuseunterseite verlaufen.

Hereby show:

• 1 a representation of an indicated busbar system with a feed adapter not yet connected to the busbar system and a surge arrester arrangement according to the invention in the state of the not yet completed assembly movement with respect to the line receptacles in the feed adapter;
• 2 a representation similar to that after 1 However, wherein the feed adapter is already mechanically and electrically connected to the busbar system and the mounting movement for the surge arrester arrangement is still outstanding; such as
• 3 an illustration in the state of the supply adapter connected to the surge arrester arrangement using the existing in the latter nose-like plug contacts which extend at an angle deviating from the vertical with respect to the housing bottom.

The in the 1 to 3 shown surge arrester arrangement 1 has several, located in a housing surge arrester with corresponding internal wiring. About trained in the housing window, the functional state of the surge arrester used can be controlled and displayed.

The surge arrester arrangement 1 is used in particular for the protection of low-voltage systems.

Since one of the main coupling paths of conducted disturbances form the lines introduced into the system itself, installation of a surge arrester arrangement directly at the building entrance is advantageous.

On the building side, busbar systems with multiple busbars for power distribution are known. The busbar systems have standard-compliant busbars with corresponding busbar dimensions also subject to the standard.

A feed adapter 4 can now in a conventional manner to the corresponding busbars of the busbar system 3 placed and mechanically fixed by displacement and electrically contacted. The corresponding power adapters 4 have a variety of connection openings 5 on, which are usually used for laying cable ends.

The surge arrester arrangement according to the invention 1 has a housing bottom, which has recesses through which a plurality of electrical plug contacts 6 are guided.

These plug contacts 6 are preferably nose-like and extend at an angle deviating from the vertical with respect to the housing bottom of the surge arrester arrangement 1 , The respective plug contacts are formed identically per arrangement type. For example, the plug contacts 6 a round cross-section and can be designed as plug-pin contacts.

The skew, the distance between each other, the length and the cross section of the plug contacts 6 are on the training of the feed adapter 4 with there openings 5 aligned and adjusted accordingly.

After, as in the 2 shown the appropriate feed adapter 4 on the busbar system 3 was placed, the surge arrester arrangement 1 with the same oblique plug contacts 6 via a horizontal to the feed adapter assembly 4 executed assembly movement in the local openings 5 , which are, for example, the mentioned line recordings introduced. By sliding in a slightly vertical downward direction is then a locking of the plug contacts 6 in the corresponding, on the busbars 3 already applied feed adapter 4 ,

Condition as a result of the carried out installation on the infeed adapter 4 attached surge arrester 1 show the 3 ,

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102004037083 B4 [0002]
• DE 3804294 C1 [0004]

Claims (5)

A surge arrester arrangement comprising a plurality of surge arresters housed in a housing and internal wiring for protecting low voltage systems, the housing having a lower surface having recesses through which a plurality of electrical plug contacts are routed, characterized in that the plug contacts are nose-like and under one Angle deviate from the vertical with respect to the housing bottom, wherein the respective plug contacts per arrangement type are identical. Surge arrester arrangement according to Claim 1 , characterized in that the plug contacts are rigid. Surge arrester arrangement according to Claim 1 or 2 , characterized in that the plug contacts have a round cross-section. Surge arrester arrangement according to one of the preceding claims, characterized in that the plug contacts are designed as plug-pin contacts. Surge arrester arrangement according to one of the preceding claims, characterized in that the oblique position, the distance between each other, the length and the cross-section of the plug contacts are aligned with the formation of a known power supply adapter for a busbar system.

Images