CN104380552B - A shutter system in a switchgear assembly - Google Patents

Abstract

There is provided a shutter system in a switchgear assembly comprising a cable compartment configured to accommodate cables; a circuit breaker compartment configured to accommodate a circuit breaker; and a busbar compartment configured to accommodate a plurality of poles, wherein the shutter system comprises: a set of shutter plates (71, 72, 73, 74) configured to divide the circuit breaker compartment into a test position in which the circuit breaker is disconnected with extended portions of both the poles and the cables and a service position in which the circuit breaker is connectable with the extended portions of both the poles and the cables. Various embodiments of the present invention may improve and guarantee the safety of operators.

Description

Valve systems in switchgear assemblies

technical field

Embodiments of the invention generally relate to a switchgear assembly. In particular, embodiments of the invention relate to a shutter system in an air-insulated medium voltage switchgear assembly.

Background technique

Currently, from a market point of view, it is necessary to develop low-end, low-cost medium voltage (hereinafter referred to as "MV") switchgear components.

Generally, the switchgear assembly includes a cable room, a circuit breaker room, a busbar room, a low-voltage room, and a compact pressure relief channel arranged for safety purposes.

In a typical switchgear assembly, circuit breakers connect the cables in the cable compartment to the busbars in the bus compartment. When it is necessary to disconnect the busbar, for example when maintenance and/or repair of components of the switchgear is required, it is often necessary to withdraw the circuit breaker from the circuit breaker compartment. However, it is dangerous for the operator to gain direct access to the interior of the breaker compartment if the operator does not safely separate the cables and/or busbars from the breaker.

Contents of the invention

One or more objectives of various embodiments of the present invention include facilitating connection and disconnection between various compartments, improving and ensuring operator safety, and the like.

According to an aspect of the present invention there is provided a shutter system in a switchgear assembly comprising: a cable compartment configured to accommodate cables; a circuit breaker compartment configured to accommodate circuit breakers; and a compartment configured to accommodate a plurality of branch A busbar compartment of a busbar, wherein the shutter system includes: a shutter panel set configured to divide the position of the circuit breaker into a test position and a working position, in which the circuit breaker is disconnected from the busbar and the extension of the cable, in In the working position, the circuit breaker is connectable to both busbars and extensions of cables.

According to an embodiment of the present invention, wherein each of the shutter panel sets has a first edge and a second edge, and is rotatable so that it can be opened or closed.

According to an embodiment of the present invention, wherein the first edge of the at least one shutter plate is fixed to a corresponding shaft and the second edge of the at least one shutter plate is rotatable about the corresponding shaft such that the at least one shutter plate is rotatable.

According to an embodiment of the present invention, wherein the first edge of at least one shutter plate is movable along a first path, and the second edge of at least one shutter plate is movable along a second path orthogonal to the first path, such that At least one shutter panel is rotatable.

According to an embodiment of the present invention, a corresponding guide element is also included, corresponding to each of the at least one shutter plate, to guide the movement of the corresponding shutter plate, wherein the corresponding guide element is located between the first path and the second path. Those who extend.

According to an embodiment of the present invention, the shutter system of claim 2, wherein each of the shutter panel sets is rotatable in a horizontal plane or a vertical plane.

According to an embodiment of the present invention, wherein each of the shutter panel groups is rotatable in a horizontal direction, the shutter panel group includes: three shutter panels of a first type, the first edges of which are movable along a first path, and the second two edges are movable along a second path perpendicular to the first path; and a shutter plate of a second type, the first edge being fixed to a corresponding axis and the second edge rotatable about a corresponding axis.

According to an embodiment of the present invention wherein each of the shutter panel sets is rotatable in a vertical direction, the shutter panel set includes two shutter panels whose first edge is movable along a first path and whose second edge is movable along a A second path that is orthogonal to the first path moves.

According to an embodiment of the present invention, wherein each of the shutter panel groups is linearly movable so that it can be opened or closed.

According to an embodiment of the present invention, wherein, the shutter system includes: a first housing part, which shields the extension part of the branch busbar; and a second housing part, which shields the extension part of the cable, and wherein the shutter board group is arranged in the first and second housing parts.

According to an embodiment of the present invention, wherein, the number of shutter plate groups is three.

According to an embodiment of the invention, wherein the shutter system further comprises a rod and a coupling element, and wherein the rod is pivotally connected at a first end to the switchgear assembly and at the other end to a coupling member coupling the shutter panel set .

According to an embodiment of the present invention, wherein the shutter system further includes an elastic element for automatically closing the shutter plate.

According to an embodiment of the present invention, wherein the valve system further includes an interlocking element for preventing manual opening of the valve system.

According to another aspect of the present invention, there is provided a switchgear assembly comprising any one of the above-mentioned shutter systems.

Other features and advantages of the embodiments of the present invention can also be understood from the following description of specific embodiments when read in conjunction with the accompanying drawings, which illustrate, for example, the principles of the embodiments of the present invention by way of example.

Description of drawings

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate embodiments of the invention and together with the description help explain the principle of the invention. In the attached picture:

Figure 1 is a diagram illustrating an exemplary switchgear assembly in which a shutter system according to one embodiment of the present invention may be practiced;

Figure 2 is a diagram showing a side sectional view of the switchgear assembly as shown in Figure 1;

3 is a diagram illustrating a front sectional view of a circuit breaker compartment of the switchgear assembly as shown in FIG. 1 when the circuit breaker is in the test position;

Figure 4 is a diagram illustrating a front sectional view of a circuit breaker compartment of the switchgear assembly as shown in Figure 1 when the circuit breaker is in the service position;

Figure 5 is a diagram illustrating an exemplary wall bushing module according to an embodiment of the present invention;

Figure 6 is a diagram illustrating an exemplary shutter system in a closed state according to one embodiment of the present invention;

Figure 7 is a diagram illustrating an exemplary shutter system in an open state according to one embodiment of the present invention;

FIG. 8 is a diagram illustrating the overall process of inserting a circuit breaker into a circuit breaker compartment according to one embodiment of the present invention;

9 is a diagram showing a specific configuration of an exemplary shutter system according to an embodiment of the present invention;

10 is a diagram showing a specific configuration of a guide member of an exemplary shutter system according to an embodiment of the present invention;

11a-11c are diagrams illustrating the operation of an exemplary shutter system according to an embodiment of the present invention;

12a-12c are diagrams illustrating the operation of an exemplary shutter system according to another embodiment of the present invention;

Figure 13 is a diagram illustrating an exemplary shutter system according to another embodiment of the present invention;

14 is a diagram showing a specific configuration of an elastic member of an exemplary shutter system according to another embodiment of the present invention;

15 is a diagram illustrating a side view of an exemplary shutter system according to another embodiment of the invention; and

FIG. 16 is a diagram illustrating an exemplary shutter system according to yet another embodiment of the present invention.

detailed description

Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a diagram showing an exemplary switchgear assembly in which a shutter system according to one embodiment of the present invention may be practiced, and FIG. 2 is a diagram showing a side cross-sectional view of the switchgear assembly as shown in FIG. 1 .

As shown in FIGS. 1 and 2 , an embodiment of the present invention provides a switchgear assembly comprising: a cable (CA) compartment configured to accommodate a cable 10; disposed on the cable compartment and configured to accommodate a circuit breaker 20 A circuit breaker (CB) room; a low-voltage (LV) room arranged above the front of the circuit breaker room and configured as a control switchgear; and a busbar arranged above the rear of the circuit breaker room and configured to accommodate a plurality of branch busbars 30 (BB) Chamber (as shown in Figure 2). For clarity and ease of illustration, in the context of this description, the direction from the CA chamber to the CB chamber and then to the BB chamber is referred to as the vertical direction.

The arrangement of the BB room behind the LV room will help improve operator safety. In this arrangement, the LV chamber is accessible by the operator (eg, for maintenance and control purposes), while the BB is separated from the operator by the LV chamber and is not accessible by the operator. Therefore, the arrangement according to the embodiment of the present invention can guarantee the safety of the operator.

However, those skilled in the art will appreciate that while the LV chambers are arranged as above, other arrangements of the LV chambers are acceptable and encompassed by the present invention. In other words, how the LV chambers are arranged will not affect the arrangement of the shutter system according to embodiments of the present invention.

According to an embodiment of the present invention, each of the plurality of branch busbars 30 is connected to a corresponding one of the plurality of busbars, and can be connected to a corresponding one of the cables 10 via the circuit breaker 20; and wherein the plurality of branch busbars 30 are arranged such that they are separated from each other by a certain distance in a first horizontal direction defined from the front to the rear of the breaker room.

As shown in FIG. 2, the number of branch busbars 30 is generally three, and corresponds to each phase of the three-phase power supply. Therefore, there are typically three bus bars connected to the electrodes 30 . Of course, other numbers of electrodes are applicable if desired.

Note that the term "first horizontal direction" in the context of this specification refers to a direction that is orthogonal to the aforementioned "vertical direction" and extends from the LV chamber to the BB chamber (or from the BB chamber to the LV chamber), as shown in Fig. 1 and Figure 2.

In addition, as shown in FIG. 2, the electrodes may be extended to the CB chamber to form an extension and connect with the circuit breaker 20 therein. The circuit breaker 20 typically has a corresponding number of connectors (eg, three fingers) for connecting to copper bars extending from the BB chamber. At the other end of the circuit breaker, a corresponding number of cables are connected so that current can flow through the circuit breaker in the CB room from the busbars housed in the BB room to the cables in the CA room. It will be appreciated that the cables may also extend to the breaker compartment to form an extension.

According to one embodiment of the present invention, as shown in FIG. 2, a plurality of branch busbars 30 are arranged in the first horizontal direction instead of the vertical plane, so that the branch busbars 30 can go directly from the busbar room to the circuit breaker room Without any bending or direction reversal, furthermore, the branch busbar 30 can be directly connected to the circuit breaker without any other intermediate parts (such as contacts used in some conventional switchgears). According to an embodiment of the present invention, only straight bars (eg copper bars) are required for transformer and cable connections.

Of course, it can be understood that the above-described embodiments are only preferred and exemplary, and that any suitable component may be present between the branch busbar and the circuit breaker if necessary.

Also note that arranging branch busbars in the first horizontal direction is only a preferred embodiment and other arrangements are possible as long as a plurality of branch busbars are separated by a certain distance in the first horizontal direction. For example, one of the multiple branch busbars can be arranged higher or lower (in the vertical direction) than the other branch busbars, etc.

Next, the internal structure of the CB chamber will be specifically described by referring to FIGS. 3 and 4 .

FIG. 3 is a diagram illustrating a front cross-sectional view of a circuit breaker compartment of the switchgear assembly as shown in FIG. 1 when the circuit breaker is in a test position (P1). Fig. 4 is a diagram illustrating a front sectional view of the circuit breaker compartment of the switchgear assembly as shown in Fig. 1 when the circuit breaker is in the working position (P2).

Referring to Fig. 3, according to an embodiment of the present invention, the circuit breaker chamber includes a test position (P1) and a working position (P2) in a second horizontal direction orthogonal to the first horizontal direction, and in the test position (P1), the circuit breaker The circuit breaker is disconnected from the extension of both the branch busbar and the cable, and in the working position (P2), the circuit breaker can be connected with the extension of both the branch busbar and the cable.

It should be noted that the term "second horizontal direction" in the context of this specification is a direction orthogonal to the first horizontal direction and the vertical direction.

As shown in Figure 3, the CB chamber has a working position (P2) on the left and a test position (P1) on the right. In the test position (P1), the circuit breaker is disconnected both from the electrodes in the BB chamber and from the cables in the VA chamber (not shown in Figure 3). When the circuit breaker is driven to move from right to left and reach the working position (P2), as shown in Fig. 4, it connects the branch busbars in the BB room to the cables in the CA room. Of course, according to another embodiment, it can be understood that the testing position (P1) can be on the left side, while the working position (P2) can be on the right side.

As shown in Fig. 3 and Fig. 4, when disconnecting the branch busbar 30 and the cable 10, according to the embodiment of the present invention, it is not necessary to completely pull out the circuit breaker from the CB chamber. Instead, the operator may only need to move the circuit breaker from left to right (or from right to left), then the connection between the branch busbar and the circuit breaker and between the circuit breaker and the cable will be severed . Obviously, according to the embodiment of the present invention, this will reduce the space occupied.

In order to facilitate the movement of the circuit breaker, two sets of guide rails can be provided in the CB room. According to an embodiment of the present invention, a first rail set (not shown) is arranged in the second horizontal direction to allow the circuit breaker to slide between the test position and the working position, and the second rail set 50 (as shown in FIG. 7 ) is arranged in a first horizontal direction such that the circuit breaker slides into or out of the circuit breaker chamber.

FIG. 5 is a diagram illustrating modules of an exemplary wall bushing according to an embodiment of the present invention.

Wall bushing modules are used for insulation and support between compartments. For example, when the housing of the switchgear assembly is made of metal, insulating wall bushing modules need to be arranged eg between branch busbars and the housing, between circuit breakers and the housing and between cables and the housing. Of course, if the enclosure is made of insulating material, there is no need for bushing modules in the wall.

Wall bushing modules are available in the market. Generally, commercially available wall bushing modules are in an integrated form and can be directly used in switchgear assemblies according to embodiments of the present invention.

In order to further enhance the safety of the operator, it is preferable to create a gap between the test position (P1) and the working position (P2), so that when the circuit breaker moves from the test position (P1) to the working position (P2), the shutter plate The valve group is opened to allow the passage of the circuit breaker, and when the circuit breaker is moved from the working position (P2) to the test position, the valve group is closed to isolate the test position (P1) and the working position (P2) to ensure the safety of the operator.

According to an aspect of the present invention, there is provided a shutter system in a switchgear assembly as described above. As stated again, the switchgear assembly may include: a cable compartment (CA) configured to accommodate cables; a circuit breaker (CB) compartment disposed on the cable (CA) compartment and configured to accommodate a circuit breaker; and disposed on The circuit breaker (CB) compartment is on top and is configured as a bus bar (BB) compartment to accommodate multiple poles. According to an embodiment of the present invention, the shutter system may include: a shutter panel set 70 configured to divide the circuit breaker compartment into a test position and a working position, in which the circuit breaker is disconnected from the extensions of both poles and cables , in the service position, the circuit breaker can be connected to both the pole and the extension of the cable.

Figure 6 is a diagram illustrating an exemplary shutter system in a closed state according to one embodiment of the present invention.

As shown in Fig. 6, the shutter plate 70 is closed, so that the test position (P1) and the working position (P2) are well isolated. Preferably, when the circuit breaker leaves the working position, the shutter panel can be closed automatically. This will keep the operator safe.

Figure 7 is a diagram illustrating an exemplary shutter system in an open state according to one embodiment of the present invention.

As shown in Figure 7, when the circuit breaker is moved from the test position (P1) to the working position (P2), the shutter plate can be driven open.

FIG. 8 is a diagram illustrating an overall process of inserting a circuit breaker into a CB chamber according to one embodiment of the present invention. As shown in Figure 8, the circuit breaker is first inserted into the test position along eg the second rail set. When a certain position is reached, the circuit breaker is then driven to move to the working position along eg the first set of guide rails. As the circuit moves from the test position to the working position, the shutter plate is opened so that the circuit breaker can connect the electrodes in the BB compartment to the cables in the CA compartment. When pulled out, the circuit breaker first moves from the working position to the test position along eg the first set of guide rails (preferably the shutter panel will automatically close), and then can be pulled out from the CB chamber along eg the second set of guide rails.

Reference is made back to Figures 1 and 2. According to an embodiment of the present invention, the switchgear assembly may further include a pressure relief channel 60, which is arranged at the rear of at least one of the cable room, the circuit breaker room and the busbar room, and is arranged for IAC level switchgear and control cabinet (IAC) applications.

According to an embodiment of the present invention, the breaker room can be interlocked with at least one of the CA room, BB room and LV room, so that the entire switchgear assembly can be kept stable. Any known or yet to be developed mechanism can be used to interlock the various chambers.

Furthermore, according to an embodiment of the invention, the switchgear assembly may be, for example, an air-insulated medium voltage switchgear assembly.

Switchgear assemblies according to various embodiments of the present invention are designed to comply with International Electrotechnical Commission (IEC) 62271-20 "LSC-2B" and "Partition Metallic".

The configuration or arrangement of the shutter system according to various embodiments will be described in detail.

Example 1

According to an embodiment, each of the shutter panel sets has a first edge and a second edge, and is rotatable such that it can be opened or closed. The rotatable flap can be implemented in various ways.

FIG. 9 is a diagram showing a specific configuration of an exemplary shutter system according to an embodiment of the present invention.

As shown in FIG. 9, a first edge (for example, the right edge 71-1 in FIG. Rotation about the axis makes the shutter plate rotatable.

Those skilled in the art will understand that the shutter system may only include one shutter panel 71 serving as a door. When pushed, the shutter plate 71 will rotate to open, and when the pushing force is removed, the shutter plate 71 will close, preferably automatically. It will be appreciated that the shutter system may comprise two shutter panels 71, one shutter panel rotatable about a left axis and the other shutter panel rotatable about a right axis. It should also be understood that the shutter system may include a plurality of shutter plates 71 (eg, three shutter plates corresponding to three electrodes). Also, it is also possible that the first edge may refer to the left edge 71 - 2 of the shutter panel 71 , and the second edge may refer to the right edge 71 - 1 of the shutter panel 71 .

Example 2

According to another embodiment, as further shown in FIG. 9, a first edge of at least one shutter panel (eg, the right edge 72-1 of the shutter panel 72 shown in FIG. 9) may follow a first path (eg, , indicated by 100-1 in FIG. 10) moves, and the second edge of at least one shutter panel (for example, the left edge 72-2 of the shutter panel 72 shown in FIG. A second of the paths (eg, shown by 100-2 in FIG. 10 ) is such that at least one shutter panel is rotatable.

Here, the 'first path' may be arranged along one of the first horizontal direction and the second horizontal direction, and the 'second path' may be arranged along the other of the first horizontal direction and the second horizontal direction. In other words, the first path may be indicated by 100-2, and the second path may be indicated by 100-1.

According to an embodiment of the present invention, the shutter system may further include a corresponding guide element 100 corresponding to each of the at least one shutter panel 72 to facilitate the movement of the respective shutter panel, wherein the corresponding guide element is in the first path 100- 1 and a second path 100-2.

The guide element 100 can be a track or a groove, and those skilled in the art can adopt an appropriate form according to actual needs. FIG. 10 is a diagram showing a specific configuration of a guide member 100 of an exemplary shutter system according to an embodiment of the present invention.

As shown in FIG. 10, the guide element 100 is in the form of a groove and is L-shaped to provide a first path 100-1 and a second path 100-2, so that the two edges of the shutter plate can move along two orthogonal direction to move.

Those skilled in the art can understand that the valve system may only include one valve plate 72 . When one flap 2 is moved, the flap will rotate to open, and when the driving force is removed, the flap will close. It is further understood that the shutter system may include a plurality of shutter panels 72 (eg, three shutter panels corresponding to three branch busbars).

According to an embodiment of the present invention, the shutter system further comprises a rod 40 (as shown in FIGS. 7 and 9 ) and a coupling element 80 (as shown in FIG. 9 ), and the rod 40 is pivotally connected to the switchgear at a first end. assembly and is connected at the other end to a coupling element 80 coupling the shutter panel set.

As shown in FIG. 9 , one end of the rod 40 is pivotally connected to a specific position of the housing of the circuit breaker compartment, and the other end is connected to a roller 80 so that the rotation of the rod 40 can drive the movement of the roller 80 . The roller 80 is in turn connected to one edge of each of the at least one shutter plate 72 such that movement of the roller 80 will drive the rotation of the shutter plate 72 .

Although the rod 40 and coupling member 80 described above are described with respect to the shutter plate 72 , those skilled in the art can also design suitable rods 40 and/or coupling members 80 to drive the rotary shutter plate 71 . A detailed description thereof will be omitted.

According to an embodiment of the present invention, the shutter system further includes an elastic element for automatically closing the shutter panel.

Although not shown in Figure 9, a resilient element (such as a spring or any other suitable resilient component) may be arranged for pushing or pulling the coupling element back to its original position so that once the circuit breaker returns from the working position to the test position , the shutter panel can be automatically closed.

Example 3

Example 3 is a combination of Examples 1 and 2. Specifically, the shutter panel group includes a shutter panel as shown in Embodiment 2 (a first type of shutter panel) and a shutter panel as described in Embodiment 1 (a second type of shutter panel). According to the above description, the first and second edges of each of the shutter panels of the first type are movable along the first path and the second path, respectively; and the first edges of each of the shutter panels of the second type are moved by Affixed to the shaft, and the second edge of each of the second type of shutter panels is rotatable about the shaft.

11a-11c are diagrams illustrating the operation of an exemplary shutter system according to an embodiment of the present invention.

As shown in Figures 11a-11c, the number of shutter plates of the first and second types is three and one, respectively. When the lever 40 is forced to rotate clockwise, it drives the coupling element 80 to slide, thereby driving the three first type shutter plates to follow the guide elements (such as grooves) arranged on the upper and lower surfaces of the CB chamber. to move. Simultaneously, a shutter plate of the second type is forced open by the movement of the circuit breaker. In addition, when the circuit breaker moves away from the working position, all the shutter panels can be reset to their original positions through elastic elements (such as springs).

According to an embodiment of the present invention, preferably, the first and second edges of the shutter plate may have protrusions and recesses matched with each other. Specifically, when the flaps are closed, the convex portion of one flap will extend into the concave portion of its corresponding flap. Preferably, the convex part and the concave part are arranged in the middle of the edge of the shutter plate, which can prevent the interference between the shutter plate and the extending parts of cables and branch busbars.

As can be seen from the above description, all the flaps can be rotated in the horizontal plane. Here, it should be understood that the term "horizontal plane" is a plane perpendicular to the aforementioned vertical direction. In other words, for the shutter plate 71, it rotates about its vertically extending edge 71-1, and for the shutter plate 72, it rotates about its corresponding axis VA (indicated by dashed line in FIG. 10 ) which also extends vertically. indication) to rotate. Here, unlike the edge 71-1, the axis VA is a virtual axis, as described in FIG. 10 .

Example 4

According to another embodiment, the shutter plates can also rotate in a vertical plane, and the number of the shutter plates can be 2, wherein the first edges of the two shutter plates can move along the first path, and the second The two edges can move along a second path that is orthogonal to the first path.

12a-12b are diagrams illustrating the operation of an exemplary shutter system according to another embodiment of the present invention.

As shown in Figures 12a-12b, two shutter plates 73 are arranged one above the other. The upper edge 73-1 of the upper shutter panel and the lower edge 73-1 of the lower shutter panel can move along their corresponding moving horizontal paths 110-1, and the lower edge 73-2 of the upper shutter panel and the upper edge of the lower shutter panel 73-2 may move in opposite directions along a corresponding vertical path 110-2.

Here, the "horizontal path" may be arranged along the second horizontal direction, and the "vertical path" may be arranged along the above-mentioned vertical direction.

Although the horizontal path 110-1 shown in Figures 12a-12b extends towards the test position, it is also possible that the horizontal path 110-1 extends in the opposite direction, ie towards the working position.

It can be seen that the term "vertical plane" may be a plane perpendicular to the axis HA as shown in Fig. 12c. It is evident from Fig. 12c that the upper shutter plate 73 can rotate about a horizontal axis HA extending in a first horizontal direction as the edges of the upper shutter plate 73 move along their respective paths. Similarly, the lower shutter plate 73 is also rotatable about another horizontal axis HA (not shown).

Similar to the previous embodiment, the shutter system also includes a corresponding guide element 110 corresponding to each of the shutter panel groups to facilitate the movement of the corresponding shutter panel, wherein the corresponding guide element 110 is located between the first path 110-1 and the first path 110-1. The second path 110-2 extends in both.

The guide element 110 can be a track or a groove, and those skilled in the art can adopt an appropriate form according to actual needs.

Slightly different from the L-shaped groove shown in Figure 10, the guide element 110 shown in Figures 12a-12c is a U-shaped groove. Obviously, a U-shaped slot can be regarded as a combination of two L-shaped slots.

Those skilled in the art can understand that, according to Embodiment 4, the valve system may only include one valve plate.

According to an embodiment of the present invention, the shutter system further comprises a rod 40 and a coupling element 80, and wherein the rod 40 is pivotally connected at a first end to the switchgear assembly and at the other end to the coupling shutter panel set 73. Coupling element 80 .

As shown in Figures 12a-12c, the coupling element 80 may couple the upper edge 73-1 of the upper shutter panel and the lower edge 73-1 of the lower shutter panel.

According to an embodiment of the present invention, the shutter system may further include an elastic element (not shown) for automatically closing the shutter panel.

Example 5

Embodiment 5 is similar to Embodiment 1, and differs only in that in Embodiment 5, the shutter plate is rotatable about an upper and/or lower shaft.

Furthermore, it can be understood that the shutter system in Embodiment 5 can be combined with the shutter system in Embodiment 4.

Example 6

In the foregoing embodiments, all shutter panels are rotatable. Example 6 will describe a different shutter system.

FIG. 13 is a diagram illustrating an exemplary shutter system according to another embodiment of the present invention.

As shown in Figure 13, the shutter plate of the shutter system is linearly movable so that it can be opened or closed.

The linearly movable flap can be realized in various ways.

For example, the shutter system may include a panel that divides the CB chamber into a test position and a working position. The plate may comprise a fixed part and a slidable part, and in turn, the slidable part may move linearly to hide behind the fixed part such that there is a hole in the plate.

According to an embodiment of the present invention, the shutter system includes a first housing part C1, which shields the extension part of the branch busbar; and a second housing part C2, which shields the extension part of the cable, and wherein the shutter board group is arranged on first and second housing parts.

As further shown in FIG. 13 , the first housing part C1 is arranged on the CB chamber and shields the extended part of the branch busbar extending from the BB chamber, and the second housing part C2 is arranged on the lower part of the CB chamber and shields from the An extension of the cable that extends from the CA room. Obviously, the safety of the operators can be guaranteed because the branch busbars and cables are isolated from them.

It is understood that the first housing part C1 and the second housing part C2 may be separated or connected to each other.

FIG. 14 is a diagram showing a specific configuration of an exemplary shutter system according to another embodiment of the present invention.

As shown in Figure 14, the housing portion may be of any shape suitable to the shape of the branch busbar or extension of the cable. A shutter plate 74 is arranged on the housing part and is movable such that it can be hidden behind a fixed part of the housing part.

Similar to the previous embodiments, the shutter system as shown in FIG. 14 may also include a rod 40 and a coupling element 80, and wherein the rod 40 is pivotally connected to the switchgear assembly at a first end and to the switchgear assembly at the other end. A coupling element 80 that couples the shutter panel set.

FIG. 15 is a diagram showing a specific configuration of an elastic member of an exemplary shutter system according to another embodiment of the present invention.

As shown in Figure 15, an elastic member 90 (such as a spring or any other suitable elastic member) can be arranged to push or pull the coupling member 80 back to the original position, so that once the circuit breaker returns from the working position to the test position, the shutter plate Can be closed automatically.

Note that the shutter plate should have minimal contact with the fixed portion of the housing part to reduce friction and improve smooth movement of the shutter plate.

Example 7

In the previous paragraphs, embodiments 1-6 were described with respect to specific switchgear assemblies. However, shutter systems according to various embodiments of the present invention may be implemented in any other suitable switchgear assembly.

16 is a diagram illustrating an exemplary switchgear assembly in which a shutter system according to various embodiments of the present invention may be implemented.

As shown in FIG. 16 , the switchgear assembly may also include a first housing part C1 and a second housing part C2 , which have the same functions as those shown in FIG. 13 . The switchgear assembly in Figure 16 differs from the switchgear assembly shown in the preceding paragraphs in that when inserted into the breaker compartment, the breaker will make direct contact with both the branch busbar and extensions of the cables, whereas Does not move further left to right (or right to left). Therefore, the application of the shutter panel according to various embodiments of the present invention is not limited to a particular type of switchgear assembly, and is possible with any switchgear assembly.

In the various embodiments described above, the circuit breaker may have a specific portion, for example, a protrusion, for driving the rotation of the lever. For example, when the circuit breaker is moved, the protrusion can force the lever to have a rotation, which in turn drives the coupling element to open the shutter plate so that the circuit breaker can connect the poles and cables. It should also be understood that the lever may be manually operated by an operator or driven by a motor or the like.

Preferably, the shutter system according to various embodiments may be provided with a mechanical interlock group (not shown) to prevent personnel from manually opening the shutter. The mechanical interlock can be through any mechanism known or to be developed that can interlock the shutters.

According to another aspect of the present invention, there is provided a switchgear assembly comprising any one of the aforementioned shutter systems.

Many modifications and other embodiments set forth herein will come to mind to one skilled in the art to which embodiments the invention pertains having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the embodiments of the invention are not to be limited to the specific embodiments disclosed and that modifications and other embodiments are intended to be included within the scope of the appended claims. Although specific terms are used herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (13)

1. A shutter system in a switchgear assembly comprising: a cable compartment configured to accommodate cables; a circuit breaker compartment configured to accommodate circuit breakers; and a plurality of branch busbars configured to accommodate The busbar compartment, wherein the valve system includes: a set of shutter panels (71, 72, 73) configured to divide the circuit breaker compartment into a test position and a working position, in which the circuit breaker is connected to the branch busbar and the cable extensions of both are disconnected, and in said operating position said circuit breaker is connectable to extensions of both poles and said cable, wherein each of the set of shutter panels (71, 72, 73) has a first edge (71-1, 72-1, 73-1) and a second edge (71-2, 72-2, 73-2), and each shutter plate in the set of shutter plates (71, 72, 73) is rotatable so that it can be opened or closed, Wherein said set of shutter panels (71, 72, 73) comprises at least one movable shutter panel (72, 73), said first edge (72-1, 73) of said at least one movable shutter panel (72, 73) -1) movable along a first path (100-1, 110-1), and said second edge (72-2, 73-2) of said at least one moving shutter plate (72, 73) along A second path (100-2, 110-2) orthogonal to said first path (100-1, 110-1) is movable such that said at least one moving shutter plate (72, 73) is rotatable. 2. The shutter system in a switchgear assembly according to claim 1, wherein said set of shutter panels (71, 72, 73) comprises at least one rotary shutter panel (71 ), said at least one rotary shutter panel The first edge (71-1) of (71) is fixed to the corresponding shaft, and the second edge (71-2) of the at least one rotary shutter plate (71) is rotatable about the corresponding shaft, so that the The at least one rotary shutter plate (71) is rotatable. 3. The shutter system in a switchgear assembly according to claim 1, further comprising a corresponding guide member (100, 110) in communication with said at least one mobile shutter plate (72, 73) corresponding to each movable shutter plate to facilitate the movement of the corresponding movable shutter plate, wherein said corresponding guide element (100, 110) is in said first path (100-1, 110-1) and the second path (100-2, 110-2). 4. The shutter system in a switchgear assembly according to claim 1, wherein each shutter plate of said set of shutter plates (71, 72, 73) is rotatable in a horizontal plane or a vertical plane. 5. The shutter system in a switchgear assembly according to claim 4, wherein at least one movable shutter panel (72) and at least one rotary shutter panel ( 71) each shutter plate is rotatable in the horizontal direction, said at least one movable shutter plate (72) comprises three first type shutter plates (72), the first type of shutter plates (72) The first edges (72-1) are movable along respective first paths (100-1), and the second edges (72-2) are movable along respective The corresponding second path (100-2) is movable; said at least one rotary shutter plate (71) comprises a second type of shutter plate (71), the first edge of said second type of shutter plate (71) (71-1) are fixed to respective shafts, and the second edge (71-2) is rotatable about said respective shafts. 6. A shutter system in a switchgear assembly according to claim 4, wherein at least one movable shutter panel (73) of said set of shutter panels (71, 72, 73) is rotatable in a vertical plane, The at least one movable shutter panel (73) comprises two shutter panels (73), the first edge (73-1) of the shutter panel (73) is movable along the first path (110-1), and the second The two edges (73-2) are rotatable along a second path (110-2) orthogonal to the first path (110-1). 7. The shutter system in a switchgear assembly according to claim 1, further comprising linear shutter panels (74), each of said linear shutter panels (74) being linearly movable such that it Can be opened or closed. 8. The shutter system in a switchgear assembly according to claim 7, wherein said shutter system comprises: a first housing part (C1 ), said first housing part (C1 ) enclosing the extension of said pole part; and a second housing part (C2), said second housing part (C2) enclosing the extension of said cable, and wherein said linear shutter plate (74) is arranged in said first housing part (C1) and the second housing part (C2). 9. The shutter system in a switchgear assembly according to claim 7, wherein the number of said linear shutter panels (74) is three. 10. The shutter system in a switchgear assembly according to any one of claims 1-9, wherein said shutter system further comprises a rod (40) and a coupling element (80), and wherein said rod (40 ) is pivotally connected at one end to the switchgear assembly and at the other end to the coupling element (80) coupling the set of shutter plates. 11. A shutter system in a switchgear assembly according to any one of claims 1-9, wherein said shutter system further comprises a resilient element (90) for automatically closing said shutter panel. 12. A shutter system in a switchgear assembly according to any one of claims 1-9, wherein said shutter system further comprises an interlock element for preventing manual opening of said shutter system. 13. A switchgear assembly comprising a shutter system according to any one of claims 1-12.