CZ20013422A3 - Switching apparatus, particularly power circuit breaker with additional elements - Google Patents

Abstract

The present invention relates to a switching apparatus, particularly power circuit breaker being usually provided with various additional elements for securing signaling and control functions wherein open cavities (4) mutually interconnected with a transfer open channel (5) are performed for these additional elements underneath a removable lid (1) in the switching apparatus base (2) and on sides of a switching module thereof. Each of said open cavities (4) comprises in its bottom at least one opening (6) for mechanical contacts and at least one recess (7) with fixing members for the additional elements. Said transfer open channel (5) is provided in at least its central section with a removable retainer (12) for fixing electrical conductors and each open cavity (2) is provided close to its bottom with at least one transition opening (9) passing away into a side groove (10) performed from outside on the side of the base (2) and extending up to the bottom of the base (2) where outside half-grooves (13) are performed parallel to said side grooves (10) at the base (2) bottom and the bottom of the removable lid (1) wherein said side grooves (10) and said outside half-grooves (13) are united in any direction, location and size at both the bases (2) and the removable lids (1) of all the type series of the switching apparatus.

Description

Switchgear, in particular circuit breaker with additional elements

Technical field

BACKGROUND OF THE INVENTION The present invention relates to a switchgear, in particular a circuit breaker, provided with various complementary elements to provide signaling and control functions, for which open cavities are formed under the removable lid in the switchgear base and on the sides of the switchgear module. of said cavities, in its bottom, it comprises at least one opening for mechanical contact and at least one recessed shoulder with fixing elements for said complementary elements.

BACKGROUND OF THE INVENTION

Switching devices, in particular circuit breakers, are equipped with mutually different complementary elements to provide signaling and control functions for which open cavities are formed under the removable lid in the switchgear base and on the sides of the internally arranged switching modules, sometimes interconnected by a transfer open channel. of said open cavities, it comprises at least one mechanical contact hole in its bottom and at least one recessed shoulder with fixing elements for said complementary elements.

In the case of retrofitting of the switchgear with the additional elements mentioned, or in the case of arrangement of several switchgears into mutually interconnecting systems, it is necessary to install additional interconnecting electric wires both between the individual switchgear inside each switchgear and between individual switchgears and their additional elements As well as for various remote connections and the like. For this purpose, in addition to the internal through holes, the base of the switchgear in the open cavity area is provided with different side openings for extending said electrical conductors outside the bases.

However, the retrofitting of the electrical conductors through the internal through holes in the bases is almost impossible without the complete dismantling of the switchgear from the switchgear consoles and the leads drawn externally by the side openings prevent, for example, cooperating switchgear from being conveniently and optimally adjacent to each other. the conductor sections of such conductors were sufficiently protected against mechanical damage, etc. Similarly, conductor sections routed in the transfer open channel from ··· ti · ti · ti ·· «···· ·· • ······ · ti ti ti The three cavities of one open cavity to the other in the base of the switchgear are often not sufficiently fixed or protected against mechanical damage, in particular against the aggressive effects of ionized gas, which space usually penetrates when extinguishing el arc in the nearby arc chutes of the switchgear.

SUMMARY OF THE INVENTION

The object of the invention is to facilitate the installation work of the intended or retrofitting of switchgear with additional elements, in particular with respect to the additionally guided electrical conductors and their respective mechanical protection, also with regard to the aesthetic arrangement of juxtaposed and mutually cooperating switchgear, The object of the invention is that each of the open cavities is provided at its bottom with at least one through hole extending into a side groove formed from the outside of the side of the base and extending openly to the bottom of the base.

The effects of the invention are particularly evident in the simple and simplified method of guiding the additional electrical conductors and in their mechanical covering, since the lateral grooves form a closed longitudinal cavity in which the electrical conductors guided therein are adequately protected without restricting the assembly of the switchgear. adjacent. The task is also fulfilled in switchgear of different series if, according to the invention, the side grooves in their bases are unified in any direction, location and size.

According to the invention, it is further advantageous that the transfer open channel is at least in its central part equipped with a removable retainer for fixing electrical conductors which, in addition to its indicated function, additionally protects the fixed conductors fixed therefrom against aggressive effects of ionized gas usually penetrates into said space arc in the adjacent arc chambers of the switchgear.

The unified arrangement of the lateral grooves on the switchgear bases provides, according to the technical embodiment, the possibility of a unified arrangement of additional ancillary elements on the bases and removable switchgear caps, for example The threaded elements can preferably serve to hold different but also unified sidewalls for removing and inserting switchgear into switchgear rooms and the like.

BRIEF DESCRIPTION OF THE DRAWINGS

Further advantages and effects of the present invention are further evident from the accompanying drawing, wherein Fig. 1 is an oblique front view of a switchgear base without a removable lid; Fig. 2 is a front oblique view of a switchgear assembly of different type sizes installed in a uniform line side by side; .3 rear oblique view of a set of switchgear of different sizes, installed in a uniform line side by side.

DETAILED DESCRIPTION OF THE INVENTION

A switchgear, in particular a circuit breaker, is usually provided with various complementary elements (not shown) to provide signaling and control functions, for which open cavities 4 are formed under the removable lid 1 in the switchgear base 2 and on the sides of the switchgear 3. wherein at least one of these cavities 4 comprises in its bottom at least one hole 6 for mechanical contacts (not shown) and at least one recessed shoulder 7 with fixing elements (not shown) for said additional elements (not shown). Furthermore, the open cavities 4 are connected to the bottom of the base 2 by conventional through holes 8 for eventual guidance of additional electrical conductors or other elements. According to the invention, each of the open cavities 4 is provided at its bottom and on its side with at least one transition opening 9, extending into a side groove 10 formed from the outside of the side of the base 2 and extending openly to the bottom of the base 2.

In particular, this arrangement provides for an easy and simplified method of guiding additional electrical conductors and mechanically covering them, since the side grooves 10 of the switchgear installed in a uniform line side by side form a closed longitudinal cavity 11 (FIG. the electrical conductors are adequately protected, but without limiting the arrangement of the switchgear devices close together. The task is also fulfilled with switchgear of different series if, according to the invention, the side grooves 10 in their bases 2 are united in any direction, location and size.

The transfer open channel 5 (FIG. 1) is provided at least in its central part with a removable retainer 12 for fixing electrical conductors (not shown). Moreover, the electrical conductors fixed thereto are protected against the aggressive effects of ionized gas, which usually penetrates into the space in this area or which can penetrate when arc arc is quenched in the nearby arc chambers of a switchgear.

• · • ·

The unified arrangement of the side grooves 10 on the switchgear bases 2 according to the technical arrangement provides for the possibility of a unified arrangement of additional auxiliary elements on the bases 2 and removable switchgear lids 1, for example can be formed in uniform spans at the base 2 and the bottom of the removable lid 1 (FIG. 2) of the outer rebate 13, which, using inserted threaded elements, may preferably serve to attach various side panels, not shown but also unified, for removing and inserting switchgear into switchgear rooms and the like.

Industrial applicability

The object of the invention is applicable to the device bases of fuse disconnectors and switch-disconnectors, switchgear, busbar adapters and the like.

Claims (4)

PATENT CLAIMS A switchgear, in particular a circuit breaker, equipped with mutually different complementary elements to provide signaling and control functions, for which open cavities are formed under the removable lid in the base of the switchgear and on the sides of the switching module, interconnected by a transfer open channel, each of these cavities comprises in its bottom at least one mechanical contact hole and at least one recessed shoulder with fixing elements for said complementary elements, characterized in that each of the open cavities (4) is provided at its bottom with at least one transition hole (9) extending into the lateral grooves (10) formed externally on the side of the base (2) and extending openly to the bottom of the base (2). Switching device according to claim 1, characterized in that the transfer open channel (5) is provided at least in its central part with a removable retainer (12) for fixing the electrical conductors. Switching device according to claim 1, characterized in that external rebates (13) are formed parallel to the side grooves (10) at the base base (2) and the bottom of the removable lid (1). Switching device according to claim 1, characterized in that the side grooves (10) and the outer rebates (13) are united in any direction, location and size both at the bases (2) and at the removable lids (1) of all switch series. machines.