CN104904079A - Switchgear assembly switchpanel - Google Patents

Abstract

An electrical distribution system switchboard has a busbar section extending in the direction of a transverse axis. A busbar section for connecting at least two switchboards of an electrical distribution system, wherein the busbar section has a plurality of phase conductor housings (11a, 11a, 11b). At least one of the phase conductor housings (11a, 11b) has at least one interface, wherein at least one of the interfaces of the phase conductor housings (11a, 11b) is connected to the Y-shaped housing assembly (9, 9a) connected.

Description

Power distribution equipment distribution board

The invention relates to a switchboard for switchboards with a busbar section extending in the direction of a transverse axis for connecting at least two switchboards for switchboards, wherein the busbar section has a plurality of , especially three or integer multiples of phase conductor housings extending in the direction of the transverse axis for accommodating phase conductors, wherein at least one of the phase conductor housings has at least one interface, and the housing assembly is connected to the above interface.

Such switchgear switchboards are known, for example, from the product specification "Gas-Insulated Switchgear for 72.5 to 800 kV" from Siemens AG. It is proposed here that the switchboard be constructed in such a way that a plurality of phase conductor housings, which extend in the direction of the transverse axis on the switchboard switchboard, are supported on different sockets. Provision is made here to use a specifically curved housing component in each case depending on the position of the housings of the different phase conductors. As a result, almost any arrangement of the phase conductor housings of the individual phase conductors can be realized. As a result, although good variability can be achieved for different application variants in the design of switchboards for switchboards, the number of different housing components required to support the housings for the different phase conductors is relatively small. big.

Therefore, the technical problem to be solved by the present invention is to provide a switchboard for power distribution equipment, which can reduce the number of variants of the shell assembly for supporting the phase conductor shell, and can also be used in the switchboard of power distribution equipment. There is a high degree of variability in the design scheme.

The technical problem is solved according to the invention by a switchboard for power distribution systems, it being provided that at least one of the connections of the phase conductor housings is connected to a Y-shaped housing assembly.

By using a Y-shaped housing arrangement, a housing arrangement is provided which, in projection, has at least three branches extending in different directions. In this case, the projection should take place in the direction of the transverse axis of the switchboard in the installation position of the Y-shaped housing assembly. The transverse axis is the axis along which the busbar extends, extending substantially perpendicular to the transverse axis in the form of branches from the distribution equipment panel on the busbar. The busbar sections of the switchboard of the switchboard are arranged transversely/across, particularly preferably in the direction of the transverse axis, the successive phases. In particular, the busbar section can be transverse to a plurality of aligned power switch housings of the switchboard of the switchboard. Y-shaped housing assemblies use a housing within which at least one phase conductor is disposed. The phase conductor branches off (possibly connectable/switching over) at least three branches of the Y-housing. The branches of the Y-housing assembly are formed, for example, by sockets. Nipples are used to integrate/connect the Y-shaped housing assembly with another housing. The nozzle is shown as the interface of the Y-shell assembly. The Y-shaped housing assembly preferably has a fluid-tight housing. For example, it can be provided that the individual branches of the Y-shaped housing arrangement are arranged axially offset in the direction of the transverse axis. Furthermore, it can be provided that the branches of the Y-shaped housing arrangement are aligned circumferentially relative to one another with respect to the transverse axis. Especially in the case of an axial misalignment, for example, around the vertices (produced in projection) of the individual branches in the direction of the transverse axis, a substantially hollow-cylindrical base body can be provided, on the outer surface of the base body substantially perpendicular to the cylinder axis. Projecting forward are individual branches of the Y-shaped housing assembly. Alternatively, it can also be provided that the individual branches are arranged aligned (radially) in a circumference around the transverse axis, and that the branches of the Y-shaped housing assembly merge into one another at the apex, so that in the apex it encloses the volume of. In this case, it can also preferably be provided, for example, that the apex expands in the form of a spherical cap, wherein the individual branches are preferably oriented radially in the plane of the diameter. The branch is preferably designed as an essentially hollow-cylindrical stub. In this case, relative positions, angles, vertices, etc. relate to the cylinder axis of the connection. The connection of the Y-shaped housing is preferably designed similarly to the phase conductor housing of the busbar section or to other housing connections.

Accordingly, for example at least one phase conductor housing can be positioned on at least one of the branches of the Y-shaped housing arrangement. Preferably, a support for one or more phase conductor housings can also be provided on two of the branches in each case. Unused branches of the Y-housing assembly can be closed at the end side. For this purpose, for example a flange cover can close a connection. In order to connect the phase conductor housings to the Y-shaped housing assembly, the connections of the phase conductor housings are preferably attached to the sockets of the Y-shaped housing assembly. The connection can be designed, for example, as a welded connection, as a glued connection or as a flange-shaped connection or the like. For example, the connecting piece can be substantially hollow-cylindrical, in particular hollow-cylindrical. The connections of the phase conductor housings can be arranged on the housing side on the phase conductor housings of the busbar section, which are preferably substantially hollow-cylindrical. In this case, the cylindrical axis of the phase conductor housing is substantially parallel to the transverse axis. The connections of the phase conductor housings of the busbar sections can be designed as sockets for connection to other housings. The interface is preferably located on the housing side. The busbar section can be designed as a single-wire busbar or as a multi-wire busbar, in particular a double-wire busbar. The busbar sections can here be designed as single-phase or multi-phase. One or more phase conductors can be enclosed within the phase conductor housing. When several phase conductors are enclosed in a common housing, it is possible to introduce the same potential (same phase, single-pole insulation) or different potentials (multi-phase, multi-pole insulation). The connection of the Y-shaped housing assembly and the phase conductor housing should be designed to be fluid tight so that fluid surrounding the phase conductors within the housing cannot escape. The shell itself shall be designed as a fluid-tight pressure vessel. The phase conductors provided in the housing for the purpose of carrying current are washed from all sides by electrically insulating fluids, such as sulfur hexafluoride gas, nitrogen, oil, etc. The fluid can preferably have an overpressure.

Switchboards The switchboard should preferably be designed as a pressurized gas or pressurized fluid insulated device, so that the phase conductors are arranged in a pressurized fluid, such as insulating gas (sulfur hexafluoride, nitrogen) or insulating ester or insulating oil, etc. A corresponding housing, in particular a phase conductor housing or a Y-shaped housing arrangement, surrounds the electrically insulating fluid and forms a tight barrier against the fluid. Likewise, the Y-shaped housing assembly can be part of a hermetic enclosure, wherein a phase conductor introduced into the phase conductor housing can protrude into at least one of the branch circuits in an electrically insulated manner.

The use of a Y-shaped housing assembly makes it possible for different phase conductor housings to be mounted at different positions using an identical embodiment of a Y-shaped housing assembly. For example, an asymmetrical design of the Y-shaped housing arrangement can be provided in order to produce a mirror-symmetrical position when it is rotated, for example, by 180° about a branch of the Y-shaped housing arrangement. Thus, one and the same Y-shaped housing assembly can be used multiple times on the switchboard of the power distribution equipment. For example, it can be provided that the switchboard of the switchboard is designed as multi-phase, in particular three-phase, that is to say that the switchboard of the switchboard has a plurality of phase conductors which are arranged electrically insulated from one another, wherein the individual phases The conductors can be connected to other phase conductors of other switchboards via the associated phase conductor housings and the phase conductors of the leading busbar sections. In this case, the busbar sections preferably extend transversely to the sequence of the individual phases of the switchboard of the switchboard. Especially when using three-phase switchboards for distribution systems, the same Y-shaped housing assembly can hold several, in particular at least two, phase conductors/phase conductor housings in different positions by means of different types of positioning , and thus ensure a mechanical stress of the phase conductor housing with the phase conductors located therein. The Y-shaped housing components and in particular the phase conductor housings of the busbar sections should at least be designed as single-pole insulated. In this case, the fluid insulation is defined by the housing in each case, wherein only the phase conductors of one phase (one pole) are respectively arranged in the fluid.

An advantageous refinement provides that the Y-shaped housing arrangement has a base branch and a first and a second support branch, wherein the support branches form an included angle of approximately 135°.

The Y-shaped housing assembly with the basic branch and the first and the second supporting branch is preferably installed in such a way that the basic branch is used as a load-bearing element, wherein the supporting branches can each accommodate a phase conductor shell of at least one phase conductor body. As a result, forces can be introduced into the base housing starting from the phase conductor housing, which can be arranged on the support branch. It can be provided here that the first and the second support branch or only one of the support branches is connected to the phase conductor housing of the busbar section.

With an angle of 135° between the supporting branches, different arrangements of the supporting branches of the Y-shaped housing assembly can be carried out with corresponding positioning of the Y-shaped housing assembly realized by its basic branches. Thus, for example, the phase conductor housings with the phase conductors located therein can be spaced apart on a circular path, wherein the divisions of the circle are in each case 45° or multiples thereof. For example, three different phase conductor housings, six different phase conductor housings or nine different phase conductor housings can be distributed in groups on a full circle, wherein the phase conductor housings of a group are each separated by 45° arranged mutually staggered. The circular rail runs coaxially around the transverse axis of the switchboard of the switchboard. Each group is arranged symmetrically at 90° within a circular orbit. The two sides (which form an included angle of 90°) defining the angle of the corresponding arc segment are deflected by a vertical or horizontal plane, so that at least one phase conductor housing of the phase conductor housings of the first combination and the second group respectively and their axes are located in a common horizontal or common vertical plane. Preferably, the phase conductor housings of the other group belong to the phase conductor housings of one group in each case. The planes should be parallel or perpendicular to each other. For this, the group or its arc segments should be deflected counterclockwise by 22.5° from the horizontal or vertical plane (see especially accompanying drawings 2, 11, 12, 13).

A further advantageous refinement can provide that the two supporting branches are aligned asymmetrically with respect to the base branch.

Due to the asymmetrical design of the Y-shaped housing assembly, the base branch is preferably oriented vertically or horizontally and is rotated in particular by 180° around the cylinder axis of the base branch, so that after a 180° rotation relative to the axis of rotation the axis of rotation On both sides there are supporting branches projecting mirror-image on the base branch aligned with the axially successive Y-shaped housing components. The axis of rotation preferably lies in a vertical or horizontal plane.

A further advantageous refinement can provide that the two supporting branches are aligned symmetrically with respect to the base branch.

In addition to an asymmetrical design of the Y-shaped housing assembly, a symmetrical design of the Y-shaped housing assembly can also be provided. In this case, when the Y-shaped housing assembly is rotated by 180° about the cylinder axis, the same contour of the Y-shaped housing assembly is maintained independently of the rotation in the projection in the direction of the transverse axis. Especially in the case of combined asymmetrical and symmetrical Y-housing assemblies, a three-phase design of the accessory switchboard can thus be designed for supporting three phases using only two different Y-housing assemblies. section of the busbar. The phase conductor housings extending in the direction of the transverse axis, for example substantially cylindrically, can be aligned parallel to one another, wherein the phase conductor housings each have an approximately equal distance from the apex of the Y-shaped housing arrangement. Correspondingly, the position of the Y-shaped housing assembly is determined according to the shape of the cage, wherein the phase conductor housings bounding the cage are arranged distributed around the Y-shaped housing assembly on a circular track. The vertices of the Y-shaped housing assemblies define the transverse axis and form the midpoint of the circular orbit.

A further advantageous refinement can provide that asymmetrical Y-shaped housing components are arranged on both sides of symmetrical Y-shaped housing components along the sequence in the direction of the transverse axis when the basic branches are aligned.

In the configuration of the switchboard of the switchboard with phase conductor housings of several busbar sections, in particular an asymmetrical Y-housing is arranged on both sides of a symmetrical Y-housing assembly in the direction of the transverse axis. components. The individual phase conductor housings of the busbar section can be positioned distributed on a circular track. Preferably, two different design variants are arranged symmetrically and two asymmetrical Y-shaped housing components of the same type are preferably provided. The basic branches should be arranged aligned one behind the other, wherein a symmetrical Y-shaped housing part is arranged between two asymmetrical Y-shaped housing parts. Two asymmetrical Y-shaped housing components have supporting branches protruding mirror-image relative to the base branch, wherein, in projection in the direction of the transverse axis, the supporting branches of the symmetrical housing components are arranged on both sides The corresponding support branches of the asymmetrical Y-shaped housing assembly serve as corner pieces. In this case, the position of the individual support branches is selected such that, for example, the different phase conductor housings (in particular three) are distributed symmetrically on a quarter circle. The sides delimiting the quadrants are arranged with different vertical positions and different horizontal positions. Preferably, the quarter circle is rotated 22.5° from the vertical or horizontal plane. Integer multiples of 22.5° are also divided by 45° or 135°, so that a simplified modular construction of the switchboard of the switchboard is obtained. In switchboards of substantially identical construction arranged next to each other (which are connected laterally via busbars), the Y-shaped housing components adjacent to each other are preferably each designed asymmetrically, wherein provision is made for the directly adjacent asymmetrical The reverse mirror position of the Y-shell assembly.

A further advantageous refinement can provide that the phase conductor housings of the phase conductors of the busbar sections are arranged aligned in the direction of the transverse axis on a circular track whose center point lies on the basic branch of the Y-shaped housing arrangement. and at least one, especially two vertices of the support branch.

The distribution of the individual phase conductor housings of the different phases of the busbar sections on the circular track represents a compact configuration of the busbars extending transversely to the switchboard of the switchgear. Preferably, radially directed sockets for connection to the respective Y-shaped housing component, in particular to its supporting branch, are positioned on the individual phase conductor housings of the phase conductors within the circular track. The circular track is arranged around a center of circle which is located at the apex of the base branch and the at least one support branch of the Y-shaped housing assembly, so that a symmetrical design of the busbar section is achieved.

It is also advantageously provided that the Y-shaped housing component is designed on at least one of its bearing legs with an annular flange having a screw joint distribution of 22.5° or a multiple thereof.

A ring flange is advantageously used for the connection of the Y-shaped housing assembly in the switchboard of the switchboard. The ring flange can have the same dimensions in all branches of the Y-shaped housing assembly. The annular flange has an annular flange surface. Preferably, screw joints are positioned on the ring flange, distributed symmetrically over the circumference of the ring flange, for clamping of the flange connection. Bolted joints shall be evenly spaced on a circular track. Here, the bolted joint separation should be 22.5°. This ensures that even with a rotation of the Y-shaped housing assembly about the cylinder axis of the base branch and a circular distribution of the individual phase conductor housings of the busbar sections, a correct screwed connection of the ring flange can be achieved. At the same time, the position of each axis within the switchboard of the switchboard is enforced by a separation of 22.5°. Depending on requirements, these axes can also be rotated, for example, eg out of the vertical or horizontal plane, preferably by 22.5° or integer multiples thereof.

A further advantageous refinement can provide that the Y-shaped housing part bulges in the region of the apex of the support branch in the form of a spherical cap.

Swelling in the form of a spherical cap can be achieved, for example, by the spherical shape of the Y-shaped housing component in the region of the apex of the individual branches. For this purpose, the individual branches are advantageously arranged aligned in one plane, so that they are arranged radially protrudingly in a diameter plane in order to bulge the spherical cap when using, for example, a spherical body. In the first approach position, for example, the first and the second support branch and the base branch run radially distributed around the semicircle of the sphere. The individual branches are redistributed substantially in the form of a hollow cylinder, which is characterized by a radial extension on its cylinder axis.

A further advantageous refinement can provide that the phase conductor housings of the first group are supported on the Y-shaped housing assembly and that the phase conductor housings of the second group protrude freely, the phase conductor housings being viewed in the direction of the transverse axis, in particular each with 45° mutual misalignment are arranged on a common circular orbit.

It can be provided that groups of phase conductor housings, in particular three phase conductor housings, are each positioned via the Y-shaped housing arrangement. A first group of this type can here distribute the individual phase conductor housings on a circular track. The circular track is defined here relative to the transverse axis of the switchboard, wherein the preferably substantially hollow-cylindrical phase conductor housings of the busbar sections extend with their cylindrical axes substantially parallel to the transverse axis. On the same circular track, a second group of phase conductor housings can also be arranged here, wherein the second group passes through the corresponding Y-shaped housing assembly in particular at intervals, but itself is likewise designed transversely to the power distribution Equipment distribution board extension. The phase conductors of the phase conductor housings located at a distance from the Y-shaped housing do not protrude directly into the Y-shaped housing. This use of the first and the second group, of which only one group is supported directly by the Y-shaped housing assembly, can be used, for example, as a design of a so-called interconnected switchboard for switchboards. In such an interconnected switchboard, the phase conductors of the phase conductor housings of the second group can be connected via an electrical switching device (for example a power switch). As a result, busbar sections extending transversely to the switchboard can be de-energized within the switchboard. The busbar can thus be subdivided into a first section and a second section, wherein a plurality of switchboards can be arranged in the first section and in the second section of the busbar section Lay out additional power distribution equipment switchboards. The first group of phase conductor housings is again assigned to the first section, and the second group of phase conductor housings is assigned to the second section, so that a longitudinal separation of the busbars can be achieved with this design of the switchboard . The phase conductors/phase conductor housings are preferably jumpable on circular tracks in the region of the distribution system switchboard. In this case, the sections protrude toward one another in different directions, wherein the phase conductor housings of the different sections of the busbar lie in varying arcs of the circular path.

Through the 45° dislocation arrangement of each phase conductor housing on the circle, this kind of power distribution equipment distribution board can embed multiple same type of power distribution equipment in the power distribution equipment for longitudinal separation and alignment of busbars. plate, so that the longitudinal communication of the busbar can also be realized.

A further advantageous refinement can provide that an earthing switch is arranged on the Y-shaped housing component for grounding the phase conductors located in the Y-shaped housing component.

The Y-shaped housing assembly can be designed in such a way that the phase conductors located in or protruding into the Y-shaped housing assembly are, for example, in continuous conductive contact with each other, so that, for example, they extend in the base branch and at least in in particular two support branches. Different phase conductor nodes form contact with each other. The phase conductors of a Y-housing assembly belonging to a phase are thus always supplied with the same potential. The phase conductors can be brought to ground potential within the Y-housing assembly, for example by means of a grounding switch. The earthing switch can be designed in different ways here. For example, the grounding switch can be located in the center of the vertices of the support and base branches, wherein from this point the movable contact piece of the grounding switch can be contacted via corresponding contacts which are brought into ground potential. Conversely, it can also be provided that the movable contact piece of the earthing switch continuously conducts ground potential, which is mounted movable in the region of the housing of the Y-shaped housing assembly and can be moved to a phase conductor in the Y-shaped housing assembly as required. . It can be provided here that only one grounding switch is used for grounding the phase conductors, in particular the phase conductor nodes. However, it can also be provided that the phase conductors running through the support branch can each be grounded via separate grounding switches. The separate earthing switches can be located in the support branch, and it can also be provided that they are arranged, for example, adjacent to a housing component (eg, a phase conductor housing) of the switchboard of the switchboard.

It can also be provided that an electrical switching device is assigned to the Y-shaped housing assembly. The electrical switching device can be, for example, a circuit breaker, which, for example, can electrically contact the phase conductors running in the base branch of the Y-shaped housing arrangement with the phase conductors running in the support branch. The circuit breaker can, for example, selectively connect the phase conductors of the base branch to the phase conductors of the first or second supporting branch. If required, the phase conductors of the basic branch can also be connected to the two phase conductors of the two supporting branches. Instead of using a single circuit breaker, it can also be provided that a separate circuit breaker is arranged in each supporting branch, which in each case disconnectably connects the phase conductors located in the supporting branch to the phase conductors of the basic branch. In this case, the circuit breaker can be located in the support branch, but it can also be provided that the circuit breaker is located in a housing component (for example a phase conductor housing) which adjoins the support branch.

When using two independent circuit breakers, a single earthing device or also several earthing switches can be used, wherein several earthing switches can, for example, separately earth the phase conductors in the support branch, especially if these phase conductors are connected to After the phase conductors of the basic branch are electrically disconnected. For example, the circuit breaker can be used to connect one pin of a phase conductor of a busbar section within a Y-shaped housing assembly, which extends in the phase conductor housing. The phase conductors of the base branch can be alternately connected to one or the other phase conductor of the support branch via the circuit breaker. In addition to the switching function in the Y-housing assembly, an earthing switch can also be arranged on the Y-housing assembly. As a result, for example the phase conductors of the phase conductor housing or other phase conductors protruding into the Y-shaped housing component can be supplied with ground potential if required. For example, it can be provided that the grounding switch is designed as part of the disconnecting grounding switch assembly, so that, in addition to grounding, it is also possible to disconnect electrically conductive phase conductors running in the Y-shaped housing component.

A further advantageous refinement can provide that the movable switching part of the grounding switch is mounted so that it can move, surrounded by the Y-shaped housing component, in the region of the apex of the Y-shaped housing component.

The movable switching part of the earthing switch is arranged in the region of the apex of the Y-shaped housing part, so that, for example, rotary contacts, in particular switch contacts, which are rotatable by 360°, for example, can be used. On the path of rotation of the rotatable contact part, different types of fixedly supported counter-contact parts can assume different positions, which counter-contact parts can be connected, in particular temporally successively, to the movable switching part. For example, ground potential is permanently applied to the corresponding contact piece, so that the movable switching element and correspondingly also the phase conductor electrically conductively connected to the switching element are connected to ground potential. In addition, by means of the support of the movable switching element arranged in the region of the apex of the Y-shaped housing assembly, for example, a common, protruding or penetrating Y-shaped housing assembly can be used in a plurality of aligned Y-shaped housing assemblies. The shaft of the body assembly acts as the drive element. Thus, for example, the shafts can be moved by a single drive, wherein the movement can be transmitted from the Y-shaped housing component to the corresponding movable switching part via the common shaft.

A further advantageous refinement can provide that the movable switching part of the grounding switch is mounted displaceably on the Y-shaped housing component.

Due to the movable positioning of the movable switching part on the Y-shaped housing component, the movable switching part can be continuously supplied with ground potential in a simplified manner. If desired, the movable switching element can then be moved onto the phase conductor in the Y-shaped housing assembly, so that the phase conductor is applied with ground potential. It is particularly advantageous here if at least one section of the Y-housing component is made of an electrically conductive material, then it carries ground potential. For example, it can be provided that the housing of the Y-shaped housing arrangement is produced from a cast metal part, wherein the housing of the Y-shaped housing arrangement is continuously conducted at ground potential. Accordingly, a simplified configuration of the ground rail is achieved by the housing of the Y-shaped housing assembly.

Exemplary embodiments of the invention are schematically shown in the drawings and explained in detail below.

In the attached picture,

Fig. 1 shows a perspective view of a first embodiment of a switchboard of a power distribution equipment,

Figure 2 shows a side view of the distribution board known from Figure 1,

Fig. 3 shows a side view of phase 3 of the switchboard of the switchboard known from Fig. 1,

Figure 4 shows a side view of phase 2 of the switchboard of the switchboard known from figure 1,

Fig. 5 shows a side view of phase 1 of the switchboard of the switchboard known from Fig. 1,

FIG. 6 shows a top view of the switchboard of the switchboard known from FIG. 1 ,

Figure 7 shows a front view of the distribution board known from Figure 1,

Figure 8 shows a side view of the Y-shaped housing assembly in an asymmetric embodiment,

Figure 9 shows a side view of a Y-shaped housing assembly in a symmetrical embodiment,

Figure 10 shows the application of the asymmetrical Y-shaped housing assembly known from Figure 8 in different installation positions,

Figure 11 shows a second embodiment of a distribution equipment switchboard as a so-called interconnected switchboard,

FIG. 12 shows a third embodiment of a switchboard for switchboards, which is similar to the side view of the switchboard for switchboards known from FIG. 2 in the first embodiment, and

FIG. 13 shows a fourth embodiment of an electrical distribution system switchboard, which is similar to the side view of the electrical distribution system switchboard known from FIG. 11 in the second embodiment.

The switchboard of the power distribution equipment in the first embodiment is designed according to FIG. 1 as single-pole, separated, three-phase. The switchboard of the power distribution device is arranged for power transmission in the power supply system via the first phase, the second phase and the third phase. The phase conductors of the three phases are arranged electrically insulated from one another, wherein in each of the three phases a current different in time and in amount than the other phases, which is supplied, for example, by a three-phase alternating voltage system, can be conveyed.

The power distribution equipment switchboard has a first phase 1 , a second phase 2 and a third phase 3 . All three phases are designed identically in the distribution system panel with respect to their circuits, the structure of the first phase 1 being explained in detail by way of example. The first phase 1 of the distribution system switchboard has a cable entry module 4 . The cable entry module 4 has an essentially hollow-cylindrical housing, which is provided with cable connections on the end side. For example, the cable connector can be designed as a cable plug, so that the cable 5 can be connected to phase 1 of the switchboard of the distribution system. A single-wire cable 5 is used here. Inside the cable entry module 4 , the phase conductors are electrically insulated from the housing of the cable entry module 4 . The phase conductors are used to conduct current. The interior of the cable entry module 4 and the other housings of the switchboard of the switchboard are filled with an electrically insulating fluid, in particular an electrically insulating gas, such as sulfur hexafluoride or nitrogen. An electrically insulating fluid is enclosed inside each housing under overpressure. These housings seal the electrically insulating fluid and prevent it from escaping. A circuit breaker housing 6 is mounted on the cable lead-in module 4 on the side of the housing through a connecting pipe. Arranged in the circuit breaker housing 6 is a disconnect switch which enables electrical switching of the phase conductors connected to the cable 5 . The circuit breaker housing 6 is connected to the power switch housing 7 through a corner assembly. Inside the power switch housing 7 is accommodated a disconnection unit of the power switch, by means of which the current supply, for example via the cable 5 , into the phase conductors of the phase 1 of the switchboard of the switchboard can be disconnected. The cut-off of the rated current or the short-circuit current can be largely ensured by means of the power switch. By means of the drive unit 8 arranged on the front side of the power switch housing with the corner assembly connected in between, a motorized actuation of the disconnection unit of the power switch can be realized. Opposite to the circuit breaker housing 6, the Y-shaped housing assembly 9 is connected to the drive unit 8 of the power switch housing 7 used via a corner assembly. The Y-shaped housing component 9 is attached via its base branch 13 on the housing side to the corner component of the power switch housing 7 .

Via the first and second support legs 10a, 10b of the Y-shaped housing assembly 9, the first phase conductor housing 11a and the second phase conductor housing 11b of the busbar extending transversely to the switchboard of the switchboard are fixed . The busbar sections of the switchboard run transversely to the sequence of phases 1, 2, 3 of the switchboard. Via the Y-shaped housing assembly 9, the potential conductors from the disconnection unit are selectively assigned to the phase conductors of the first phase conductor housing 11a of the busbar section or the second phase of the busbar section via the disconnecting grounding combination 12. Phase conductors of the conductor housing 11b. Alternatively, the potential conductors from the disconnection unit of the power switch housing 7 are contacted to ground potential. Correspondingly, the disconnecting grounding combination 12 is arranged to alternately connect the phase conductors of the first phase conductor housing 11a or the phase conductors of the second phase conductor housing 11b, or alternatively de-energize from the power switch housing 7 The potential conductor of the unit is grounded. In addition to the use of breaker grounding assemblies 12 which allow the phase conductors of the base branch to be electrically contacted with the phase conductors in the support branches of the Y-housing The phase conductors in the circuits 10a, 10b are disconnected from the phase conductors of the phase conductor housings 11a, 11b. In addition, one or more separate grounding switches can also be provided, which impart ground potential to the individual phase conductors conducted in the support branches 10 a , 10 b , preferably depending on the switching position of the circuit breaker for the individual phase conductors. Furthermore, it can also be provided that a separate earthing switch is arranged on the phase conductors of the basic branch 13 .

In summary, it can be provided that, starting from the base branch 13 , the phase conductors at this location within the Y-shaped housing component 9 are distributed over the phase conductors of the support branches 10 a , 10 b. According to requirements, the distribution can be carried out in different ways through the circuit breaker (the phase conductor of the basic branch 13 is connected to a phase conductor of the support branch 10a, 10b or to a phase conductor of the phase conductor housing 11a, 11b; the basic The phase conductors of the branch 13 are connected to the two phase conductors of the supporting branches 10a, 10b or to the phase conductors of the phase conductor housings 11a, 11b; all phase conductors of the basic branch 13 and the supporting branches 10a, 10b electrically coupled to each other). Furthermore, the grounding switches can be arranged arbitrarily, so that the individual phase conductors in the base branch 13 and the support branches 10 a , 10 b or the phase conductors of the phase conductor housings 11 a , 11 b can be grounded as desired.

The combination application of the break ground combination device 12 shown in FIG. 1 is provided by way of example only.

The busbars or busbar sections are here designed as double busbars. The first and second phase conductor housings 11 a , 11 b are each assigned to phase 1 and each encloses a phase conductor of phase 1 of the double busbar. The disconnecting unit of the power switch of phase 1 or cable 5 can be selectively connected to one of the phase conductors of phase 1 of the double busbar of the busbar section via the disconnecting grounding combination 12 .

The structure of a busbar section extending in the direction of the transverse axis is shown in a side view with reference to FIG. 2 . The busbar sections are here designed as so-called double busbars. Two three-phase busbar bundles running in parallel are designed as busbar sections, each double busbar having a phase conductor of the first phase 1 , the second phase 2 and the third phase 3 . Here, the individual phase conductor housings are distributed on a circular track in the direction of the transverse axis (perpendicular to the drawing plane of FIG. 2 ), wherein the first three-phase busbar and the second three-phase busbar of the busbar section There are respectively a first phase 1 , a second phase 2 and a third phase 3 stacked on top of each other counterclockwise. In order to be able to easily align the individual phase conductor housings of the individual phases 1 , 2 , 3 on respective circular tracks, two design variants of the Y-shaped housing assembly 9 are used. The Y-shaped housing assembly 9 of the first phase 1 can be seen on the front side in FIG. 2 . The Y-shaped housing arrangement 9 of the first phase 1 is designed with a base branch 13 . The basic branch 13 is designed as a substantially hollow-cylindrical stub, wherein the basic branch 13 has a vertical orientation of its hollow-cylindrical axis in the assembled position. Asymmetrically to the hollow-cylindrical axis of the base branch 13 , a first support branch 10 a and a second support branch 10 b are arranged on the Y-shaped housing component 9 . The first support branch 10 a and the second support branch 10 b are used for positioning the phase conductors of the busbar sections of the respective first phase 1 of the phase conductor housings 11 a , 11 b or of the double busbars accommodated therein. Similar to the design of the basic branch 13, the first and second supporting branches 10a, 10b are designed as hollow cylindrical connection pipes, wherein the basic branch 13, the first and second supporting branches 10a, 10b The cylinder axes intersect each other preferably at the apex in the same plane. This results in a radially shaped Y-shaped housing arrangement 9 , wherein the angle between the two support legs 10 a , 10 b is preferably 135°. In this case, the Y-shaped housing component 9 of the first phase 1 is designed asymmetrically, that is to say that the second support branch 10 b is deflected by 22.5° from the hollow cylinder axis of the base branch 13 . The first support branch 10 a is correspondingly deflected by 67.5° from the hollow cylinder axis of the base branch 13 , so that an angle of 135° is formed between the first support branch 10 a and the second support branch 10 b.

It can be seen from FIG. 2 that all the phase conductor housings 11a, 11b of the phase conductors are distributed on a circular track in the direction of the horizontal axis. In order to connect the individual phases 1, 2, 3 to the power switch disconnection units of the individual phases 1, 2, 3, different Y-shaped housing assemblies are used. 3 to 4 each show a side view of a phase 1 , 2 , 3 of a switchboard of a switchboard in a first exemplary embodiment. Looking at FIGS. 3 , 4 and 5 in an overview or superimposed, it is known to show a view as in FIG. 2 . Here, FIG. 5 shows a side view of the first phase 1 of the switchboard of the switchboard, FIG. 4 shows a side view of the second phase 2 of the switchboard of the switchboard, and FIG. Side view of the third phase 3 of the panel. It can be seen that the cable connection module 4, the circuit breaker housing 6 and the power switch housing 7 are arranged identically in each of the three phases by means of a corner assembly and a motor unit 8, as shown in FIGS. 3, 4 and 5, And have the same electrical wiring for each phase conductor. FIG. 5 shows the Y-shaped housing assembly 9 , which can be seen from the front in the side view of FIG. 2 . In FIG. 3, the Y-shaped housing assembly 9 known from FIG. 5 can also be seen, wherein the Y-shaped housing assembly 9 is rotated by 180° around the basic branch 13, so that the first support branch 10a and the second support branch The position of the road 10b changes. As a result, the substantially hollow-cylindrical phase conductor housings of the busbar sections extending in the direction of the transverse axis can extend in parallel. The second phase lying between the first and third phases 1 , 3 uses an alternative configuration of the Y-shaped housing component 9 . The Y-shaped housing component 9 of phase 2 ( FIG. 4 ) is designed symmetrically with respect to the known Y-shaped housing components 9 of phases 1 and 3 ( FIGS. 3 and 5 ). The two supporting branches 14a, 14b of the symmetrically designed Y-shaped housing assembly 9 also form an included angle of 135°, wherein, with respect to the hollow cylinder axis of the basic branch 13 of the Y-shaped housing assembly 9 in a symmetrical design , the cylinder axes of the two bearing branches 14a, 14b are each deflected identically by 67.5°. Thus, in a double busbar configuration, a mirror-symmetrical arrangement of the phase conductor housings of phase 2 of the busbar section is assumed with respect to the vertical. The individual phase conductor housings and the individual phase conductors of the busbar sections are arranged in a double busbar configuration on a circular track, wherein all vertices of the individual branches of the individual Y-shaped housing components 9, 9a are substantially aligned with each other. Horizontal axis alignment. If the busbar sections are designed as single busbars, then only one of the support branches 10 a , 10 b , 14 a , 14 b of the Y-shaped housing arrangement 9 , 9 a is equipped with a phase conductor housing. The remaining support branches 10 a , 10 b , 14 a , 14 b are closed in a fluid-tight manner.

FIG. 6 shows a plan view of the switchboard of the switchboard known from FIGS. 1 , 2 , 3 , 4 and 5 . The housings of the individual phase conductors of the busbar sections are basically designed in the form of tubes, wherein on the housing side a connection arrangement in the form of a socket is designed, wherein the socket is positioned in such a way that it bears against the corresponding Y-shaped housing component 9, The corresponding support branch 10a, 10b, 14a, 14b of 9a. For the connection, ring flanges are used, which have corresponding recesses in the flange for screwing the screws by means of threaded rods. These notches are distributed symmetrically on a circular track, wherein the bolt intervals have an angular interval of 22.5°. Preferably, flanges of the same size are used for forming the further connections on the switchboard, so that flange bolts of the same type and size and at the same spacing are always possible.

FIG. 7 shows a front view of the distribution board known from FIGS. 1 , 2 , 3 , 4 and 5 . In the switchboard of the power distribution equipment, asymmetric housing components 9 are distributed and arranged on both sides of the symmetrical Y-shaped housing component 9a.

FIG. 8 shows the structure of an asymmetrical Y-shaped housing assembly 9 . The asymmetrical Y-shaped housing component 9 has a base branch 13 . The base branch 13 is substantially hollow-cylindrical, wherein the hollow-cylindrical axis of the hollow cylinder is preferably vertical or horizontal in the installed state. The first support branch 10 a and the second support branch 10 b are connected to the base branch 13 . The two support branches 10 a , 10 b have approximately the same hollow cylindrical cross-section as the base branch 13 , the individual cylinder axes extending radially relative to one another and lying preferably in one plane. There is an angle between the respective cylindrical axes of the individual branches 13 , 10 a , 10 b , wherein the angle between the cylindrical axes of the two supporting branches 10 a , 10 b is preferably approximately 135°. The angle between the second support branch 10b and the base branch 13 is preferably about 67.5°. The angle between the first support branch 10a and the base branch 13 is preferably about 157.5°. As seen in the side view of the asymmetrically designed Y-shaped housing assembly 9, the vertex regions 10a, 10b, 13 of the respective branches expand into a spherical cap shape, thereby forming a volume-enhanced space in the vertex region, where In this space, for example, a break ground assembly 12 can be located. The spherical cap-shaped extension can be seen from a further perspective in FIGS. 6 and 7 .

A symmetrical embodiment of the Y-shaped housing component 9 a is shown in FIG. 9 . The base branch 13 corresponds in size and position to the asymmetrically constructed Y-shaped housing component 9 . Rotated symmetrically by 112.5° each from the cylinder axis of the base branch 13 , the two support branches 14 a , 14 b extend such that there is an angle of 135° between the cylinder axes of the two support branches 14 a , 14 b. Similar to the position of the branches of the asymmetrically designed Y-shaped housing part 9 , the cylindrical axes of the sockets 13 , 14 a , 14 b of the symmetrically designed Y-shaped housing part 9 a lie in a plane and intersect in the region of the apex.

In the symmetrical and asymmetrical configurations of the Y-shaped housing components 9, 9a, the individual branches 10a, 10b, 14a, 14b, 13 are connected via ring flanges, which are connected at the end sides of the individual branches. 10a, 10b, 14a, 14b, 13 extend over the free ends. The branches 10a, 10b, 14a, 14b, 13 are each designed as hollow cylindrical sockets.

FIG. 10 shows the position of the asymmetrical Y-shaped housing assembly 9 for the first phase 1 and the third phase 3 . A simple rotation about the cylindrical axis of the base branch 13 can change the position of the phase conductor housings positioned on the support branches 14 a , 14 b for forming busbar sections designed as double busbars.

FIG. 11 shows a switchboard of a distribution system of a second design variant, designed as a so-called interconnected switchboard for busbar sections. In this case, the connection of the cables via the cable connection module is omitted, since there is only one longitudinal distribution of the busbars on the switchboard of the switchgear shown in FIG. 11 . The busbar section can be divided into a first and a second section by means of a disconnection unit of the power switch housing 7 . The busbar sections are designed as multiphase, unipolar, insulated single busbars. In this case, the first group of phase conductor housings is supported by the Y-shaped housing assembly 9 , 9 a and held on a circular track. The second set of phase conductor housings remains arranged on the same circular track, wherein the second set is positioned at a distance from the Y-shaped housing assemblies 9a, 9b. The two groups of phase conductor housings are arranged mirror-symmetrically. The first and second sections extend in the transverse axial direction, wherein the first section is substantially rearward relative to the drawing plane, and the second section of the busbar section then extends in front of the drawing plane. On the power distribution equipment panel shown in Figure 11, the busbar sections jump from arc to arc.

FIG. 12 shows a third variant of a switchboard of an electrical distribution system known analogously to FIG. 1 . According to FIG. 1 , a compact configuration of the switchboard is provided, wherein the individual housings are each connected on the housing side to the power switch housing 7 via corner assemblies. According to the variant of FIG. 12 , the cable connection module 4 and the Y-shaped housing assembly 9 , 9 a are mounted on the power switch housing 7 on the end side (aligned with one another in the direction of the transverse axis). Accordingly, compared to the configuration according to FIG. 1 , an elongated structure for the switchboard of the power distribution system is provided. The positioning of the individual phase conductor housings of the phases 1 , 2 , 3 offset by 90° results from the positioning of the axis of the basic branch 13 in the horizontal position.

FIG. 13 shows a similar interconnecting switchboard designed similarly to the interconnecting switchboard according to FIG. 11 , wherein the individual Y-shaped housing components 9 , 9 a are also connected end-side to the power switch housing 7 . For the supplementary arrangement of the phase conductor housing or its phase conductors on the circular track, the phase conductors are guided onto the circular track via the frame-shaped housing component 15 . The busbar segments are designed as single busbars, wherein the two groups of the phase conductor housings of the busbar segments, which are each located on a circular track, belong to the same busbar, which is substantially drawn with respect to the transverse axis The front or rear of the plane extends and can be switched between the first section and the second section by means of a power disconnection unit in the power switch housing 7 (similar to FIG. 11 ).

The difference is that according to the design schemes of Figures 1, 2, 3, 4, 5, 6, 7 and 12, the use of double busbars is used respectively, wherein two parallel three-phase, unipolar, insulated busbars It extends both in front of and behind the plane of the drawing, so that the connection of the first bus bar and the second bus bar of the bus bar section can be established optionally by means of the disconnecting grounding assembly 12 located in the Y-shaped housing assembly 9, 9a. Connection of the phase conductors to the power switch housing 7 .

Claims (12)

1. An electrical distribution equipment switchboard having a busbar section extending in the direction of a transverse axis for connecting at least two electrical distribution equipment switchboards, wherein the busbar section has a plurality of, In particular three or an integer multiple of phase conductor housings (11a, 11b) extending in the direction of the transverse axis for receiving phase conductors, wherein at least one of the phase conductor housings (11a, 11b) has at least An interface on which the housing assembly (9, 9a) is connected, characterized in that at least one of the interfaces of the phase conductor housing (11a, 11b) is connected to the Y-shaped housing assembly (9, 9a) connected. 2. The switchboard for power distribution equipment according to claim 1, characterized in that the Y-shaped housing assembly (9, 9a) has a base branch (13) and a first and a second support branch (10a , 10b, 14a, 14b), wherein the supporting branches (10a, 10b, 14a, 14b) form an included angle of about 135°. 3. The distribution system switchboard as claimed in claim 1 or 2, characterized in that two support branches (10a, 10b, 14a, 14b) are oriented asymmetrically relative to the base branch (13). 4. The distribution system switchboard as claimed in claim 1 or 2, characterized in that two supporting branches (10a, 10b, 14a, 14b) are aligned symmetrically with respect to the basic branch (13). 5. The switchboard for power distribution equipment according to claim 3 or 4, characterized in that, along the sequence in the direction of the transverse axis, when the basic branches (13) are aligned, in the symmetrical Y-shaped housing assembly Asymmetric Y-shaped housing components are arranged on both sides. 6. The distribution system switchboard according to claim 1, characterized in that the phase conductor housings (11a, 11b) of the phase conductors of the busbar sections are aligned in the direction of the transverse axis Arranged on a circular track whose center lies at the apex of the base branch (13) and at least one, in particular two support branches (10a, 10b, 14a, 14b) of the Y-shaped housing assembly. 7. The switchboard for power distribution equipment according to any one of claims 1 to 6, characterized in that, the Y-shaped housing assembly (9, 9a) is supported on its supporting branch (10a, 10b, 14a, 14b) At least one of the is designed with an annular flange having a bolt engagement distribution of 22.5° or multiples thereof. 8. The switchboard for power distribution equipment according to any one of claims 1 to 7, characterized in that, the Y-shaped housing assembly (9, 9a) is in the support branch (10a, 10b, 14a, 14b) Bulging in the form of a spherical cap in the region of the apex. 9. The switchboard for power distribution equipment according to any one of claims 1 to 8, characterized in that the first group of phase conductor housings (11a, 11b) is supported on a Y-shaped housing assembly (9, 9a ), and the second set of phase conductor housings (11a, 11b) protrudes freely, said first and second sets of phase conductor housings (11a, 11b) viewed in the direction of the transverse axis, in particular each at 45 ° Arranged on a common circular orbit in a mutually misplaced manner. 10. The switchboard for power distribution equipment according to any one of claims 1 to 9, characterized in that a grounding switch (12) is arranged on the Y-shaped housing assembly (9, 9a) for Grounding of the phase conductors inside the Y-shaped housing assembly (9, 9a). 11. The switchboard for power distribution equipment according to claim 10, characterized in that the movable switch member of the earthing switch is Y-shaped in the area of the apex of the Y-shaped housing assembly (9, 9a). The housing assembly (9, 9a) is mounted so that it can move around. 12. The distribution system switchboard as claimed in claim 10 or 11, characterized in that the movable switching part of the earthing switch is mounted movably on the Y-shaped housing component (9, 9a).