CN220873427U

CN220873427U - Circuit breaker

Info

Publication number: CN220873427U
Application number: CN202322106451.0U
Authority: CN
Inventors: 谢芳; 朱富斌
Original assignee: Siemens Energy High Voltage Switch Hangzhou Co ltd
Current assignee: Siemens Energy High Voltage Switch Hangzhou Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-04-30
Anticipated expiration: 2033-08-04

Abstract

The utility model provides a circuit breaker. The circuit breaker includes bearing structure, three-phase circuit breaker subassembly and looks cable, and three-phase circuit breaker subassembly all sets up on bearing structure, and the looks cable is used for being connected with the circuit breaker subassembly electricity of at least one looks, and the circuit breaker still includes the cable testing bridge, and the cable testing bridge detachably sets up on bearing structure, and the cable testing bridge is provided with the wiring groove that holds the looks cable, and the part of looks cable is laid in the wiring inslot. The breaker is less costly to install and maintain.

Description

Circuit breaker

Technical Field

The application relates to the technical field of electric appliances, in particular to a circuit breaker.

Background

Circuit breakers are important switching devices in electrical power systems, which are responsible for the dual tasks of control and protection, and their stability and reliability are one of the important factors that determine whether the electrical power system can safely operate. In the process of installation and construction of the existing circuit breaker, underground cable laying is required, so that the construction progress is slow, the construction cost is increased, and certain barriers are caused to maintenance of the circuit breaker.

Disclosure of utility model

In order to solve the technical problems, the embodiment of the application provides a circuit breaker, which aims to solve the problem that the construction and maintenance cost is high due to the fact that the existing circuit breaker is laid underground.

According to a first aspect of an embodiment of the present application, there is provided a circuit breaker comprising a support structure, three-phase circuit breaker assemblies, each of the three-phase circuit breaker assemblies being arranged on the support structure, and inter-phase cables for electrical connection with at least one of the phases of circuit breaker assemblies, the circuit breaker further comprising a cable bridge detachably arranged on the support structure, and the cable bridge being provided with a raceway for accommodating the inter-phase cables, portions of the inter-phase cables being laid in the raceway.

Optionally, the cable tray includes at least two tray segments, each mounted on the support structure.

Optionally, the support structure includes a first support, a second support, and a third support, the three-phase circuit breaker assembly includes a first phase assembly, a second phase assembly, and a third phase assembly, the first phase assembly is mounted on the first support, the second phase assembly is mounted on the second support, and the third phase assembly is mounted on the third support.

Optionally, at least one bridge segment of the at least two bridge segments is connected to the first support and the second support, respectively, and at least another bridge segment of the at least two bridge segments is connected to the second support and the third support, respectively.

Optionally, the support structure is connected with a detachable mounting seat, and the cable bridge is detachably connected with the mounting seat.

Optionally, a first mounting hole is formed in the mounting seat, a second mounting hole corresponding to the first mounting hole is formed in the cable bridge, and at least one of the first mounting hole and the second mounting hole is a slotted hole.

Optionally, the mounting base includes first mounting panel and second mounting panel, and first mounting panel and bearing structure fixed connection, second mounting panel and cable bridge are connected.

Optionally, a wiring hole for the interphase cable to pass through is formed in the bottom of the cable bridge, and the wiring hole is communicated with the wiring groove.

Optionally, the at least one phase breaker assembly comprises a control box, the control boxes are all mounted on the support structure, and the interphase cable is connected with the control box.

Optionally, the at least one phase breaker assembly comprises a pole, the pole is arranged on the supporting structure, and a moving contact and a fixed contact are arranged in the pole.

The support structure of the circuit breaker is used for installing circuit breaker components, interphase cables, cable bridges and the like. The three-phase breaker component is used for achieving functions of switching on, switching off and the like of the breaker. The interphase cable may be connected with the breaker assembly of the corresponding phase to enable transmission of data and power. In order to guarantee the security of inter-phase cable, and reduce construction and maintenance cost, the circuit breaker of this embodiment still includes the cable testing bridge, and cable testing bridge detachably sets up on bearing structure, and is provided with the wiring groove that is used for holding inter-phase cable to this makes things convenient for the wiring of inter-phase cable, places and safety protection, because the cable testing bridge has been disposed on the circuit breaker, consequently does not need to lay in the underground that carries out the cable, thereby reduces construction cost and maintenance cost.

Drawings

Fig. 1 is a schematic rear view of a circuit breaker according to an embodiment of the present application;

fig. 2 is a schematic diagram of a front view structure of a circuit breaker according to an embodiment of the present application;

Fig. 3 is a schematic side view of a circuit breaker according to an embodiment of the present application;

FIG. 4 is an enlarged view of a portion of FIG. 3 at I;

fig. 5 is a schematic top view of a cable bridge of a circuit breaker according to an embodiment of the present application;

list of reference numerals:

10. A support structure; 11a first support; 12. a second support; 13. a third support; 14. a mounting base; 141. a first mounting plate; 142. a second mounting plate; 20. an inter-phase cable; 30. a cable bridge; 31. wiring grooves; 32. a wiring hole; 41. a first phase assembly; 42. a second phase assembly; 43. a third phase assembly; 44. a control box; 45. a pole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

Referring to fig. 1 to 5, the present application provides a circuit breaker including a support structure 10, three-phase circuit breaker assemblies and interphase cables 20, the three-phase circuit breaker assemblies being disposed on the support structure 10, the interphase cables 20 being for electrical connection with at least one phase of the circuit breaker assemblies, the circuit breaker further including a cable bridge 30, the cable bridge 30 being detachably disposed on the support structure 10, and the cable bridge 30 being provided with a wiring groove 31 accommodating the interphase cables 20, portions of the interphase cables 20 being laid in the wiring groove 31.

The support structure 10 of the circuit breaker is used for mounting circuit breaker assemblies, interphase cables 20, cable bridges 30 and the like. The three-phase breaker component is used for achieving functions of switching on, switching off and the like of the breaker. The interphase cable 20 may be connected with the breaker assembly of the corresponding phase to enable transmission of data and power. In order to ensure the safety of the interphase cable 20 and reduce the construction and maintenance costs, the circuit breaker of the present embodiment further comprises a cable bridge 30, wherein the cable bridge 30 is detachably arranged on the supporting structure 10 and is provided with a wiring groove 31 for accommodating the interphase cable 20, so that the interphase cable 20 is convenient to be wired, placed and safely protected, and the circuit breaker is provided with the cable bridge 30, so that the underground laying of the cable is not required, thereby reducing the construction cost and maintenance cost.

The structure and working principle of the circuit breaker are described in detail below with reference to the accompanying drawings:

As shown in fig. 1, the support structure 10 of the circuit breaker serves as a base for mounting and carrying other structures. Wherein in some examples, to ensure reliable support and to be able to meet safety requirements, the support structure 10 comprises a first support 11, a second support 12 and a third support 13, the three-phase circuit breaker assembly comprises a first phase assembly 41, a second phase assembly 42 and a third phase assembly 43, the first phase assembly 41 being mounted on the first support 11, the second phase assembly 42 being mounted on the second support 12, the third phase assembly 43 being mounted on the third support 13. This allows for reliable installation and positioning of each phase assembly while reducing costs.

In order to ensure electrical safety, the distance between any two adjacent three-phase assemblies needs to satisfy a safety distance, and the safety distance may be different for the circuit breaker with different voltages, for example, the circuit breaker of the embodiment may be a 220KV circuit breaker, and the safety distance may be 3500mm, but is not limited thereto.

In this embodiment, the breaker assembly of at least one phase includes a pole 45, the pole 45 is disposed on the support structure 10, and a moving contact and a fixed contact are disposed in the pole 45. Switching on or off can be realized by the contact or separation of the movable contact and the fixed contact in the pole 45.

In this embodiment, the circuit breaker assembly of at least one phase includes a control box 44, the control boxes 44 are each mounted on the support structure 10, and the interphase cable 20 is connected to the control box 44. The control box 44 may be used to collect data such as the status of the connected pole 45, or may be used to supply power to the connected pole 45, or the like.

In this embodiment, for ease of installation, the cable tray 30 includes at least two tray segments, each mounted to the support structure 10. Thus, the installation can be more convenient.

For example, in some examples, at least one of the at least two bridge segments is connected to the first support 11 and the second support 12, respectively, and at least another of the at least two bridge segments is connected to the second support 12 and the third support 13, respectively.

As shown in fig. 2, the cable bridge 30 is exemplified as comprising two bridge segments, one of which is connected to the first support 11 and the second support 12, respectively. The other bridge section is connected to a second support 12 and a third support 13. Of course, it should be noted that if the distance between two adjacent supporting members is too large, the two supporting members may be separated into more bridge segments, which is not limited.

Optionally, to facilitate connection of the cable tray 30 to the support structure 10 and ensure reliability, the support structure 10 is connected with a detachable mounting base 14, and the cable tray 30 is detachably connected with the mounting base 14. The mounting blocks 14 may provide mounting locations and support for the cable tray 30.

For example, the mounting base 14 is provided with a first mounting hole, the cable bridge 30 is provided with a second mounting hole corresponding to the first mounting hole, and at least one of the first mounting hole and the second mounting hole is a oblong hole. This facilitates alignment of the second mounting holes on the cable tray 30 with the first mounting holes on the mounting block 14 to facilitate passage of the fasteners therethrough and tightening thereof. The fastener may be a bolt or the like, which is not limited.

As shown in fig. 3 and 4, in some examples, the mounting block 14 includes a first mounting plate 141 and a second mounting plate 142, the first mounting plate 141 being fixedly coupled to the support structure 10 and the second mounting plate 142 being coupled to the cable tray 30. The mounting seat 14 with the structure has simple structure, is convenient to mount and dismount, and can reliably support the cable bridge 30.

For example, the first and second mounting plates 141 and 142 may be integral and formed by bending a plate material. In this example, the extending direction of the first mounting plate 141 and the extending direction of the second mounting plate 142 have an angle therebetween, which is, for example, 90 °, and of course, the value of the angle should be allowed to have an error, for example, 85 °, or 95 °.

In order to facilitate wiring, a wiring hole 32 is formed at the bottom of the cable bridge 30 for the interphase cable 20 to pass through, and the wiring hole 32 is communicated with the wiring groove 31. So that the interphase cable 20 can be threaded out of the routing hole 32.

Fig. 1 shows a schematic diagram of routing an interphase cable 20, as shown in fig. 1, after the interphase cable 20 is led out from a connected control box 44, the interphase cable 20 can be placed in a routing groove 31 of a cable bridge 30, and is carried and protected by the routing groove 31, and can be led out from a routing hole 32, so as to be convenient to be connected with a main control box of a circuit breaker.

In this embodiment, the cable bridge 30 is provided with a plurality of holes to facilitate water or other debris leakage and avoid accumulation.

To sum up, by laying the intermediate cables 20 through the bridge (i.e. using the cable bridge 30), a pre-steel U-shaped groove is placed on the mounting base 14 by the bolts M10x25, achieving safety and fixation. The mount 14 and the support are secured by M10x 35. The cable is easy to place and the cost is reduced, the on-site manual working time can be shortened, the cable length is shortened, the production efficiency is improved, the assembly cost is reduced, the flexibility of cable replacement is improved, manual excavation of a cable trench is omitted, and the cable erection time is shortened by 80%. The method meets IEC 62271-100 standard.

It should be noted that not all the steps and modules in the above flowcharts and the system configuration diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution sequence of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or may be implemented jointly by some components in multiple independent devices.

In the above embodiments, the hardware module may be mechanically or electrically implemented. For example, a hardware module may include permanently dedicated circuitry or logic (e.g., a dedicated processor, FPGA, or ASIC) to perform the corresponding operations. The hardware modules may also include programmable logic or circuitry (e.g., a general-purpose processor or other programmable processor) that may be temporarily configured by software to perform the corresponding operations. The particular implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.

While the application has been illustrated and described in detail in the drawings and in the preferred embodiments, the application is not limited to the disclosed embodiments, and it will be appreciated by those skilled in the art that the code audits of the various embodiments described above may be combined to produce further embodiments of the application, which are also within the scope of the application.

Claims

1. The utility model provides a circuit breaker, its characterized in that, the circuit breaker includes bearing structure (10), three-phase circuit breaker subassembly and interphase cable (20), and the circuit breaker subassembly of three-phase all sets up on bearing structure (10), interphase cable (20) are used for being connected with the circuit breaker subassembly electricity of at least one phase, the circuit breaker still includes cable bridge (30), cable bridge (30) detachably sets up on bearing structure (10), just cable bridge (30) are provided with and hold wiring groove (31) of interphase cable (20), the part of interphase cable (20) is laid in wiring groove (31).

2. The circuit breaker according to claim 1, characterized in that the cable bridge (30) comprises at least two bridge segments, both mounted on the support structure (10).

3. The circuit breaker according to claim 2, characterized in that the support structure (10) comprises a first support (11), a second support (12) and a third support (13), the three-phase circuit breaker assembly comprising a first phase assembly (41), a second phase assembly (42) and a third phase assembly (43), the first phase assembly (41) being mounted on the first support (11), the second phase assembly (42) being mounted on the second support (12), the third phase assembly (43) being mounted on the third support (13).

4. A circuit breaker according to claim 3, characterized in that at least one of the at least two bridge segments is connected to the first support (11) and the second support (12), respectively, and at least another of the at least two bridge segments is connected to the second support (12) and the third support (13), respectively.

5. Circuit breaker according to claim 1 or 2, characterized in that the support structure (10) is connected with a removable mounting (14), the cable bridge (30) being removably connected with the mounting (14).

6. The circuit breaker according to claim 5, characterized in that the mounting base (14) is provided with a first mounting hole, the cable bridge (30) is provided with a second mounting hole corresponding to the first mounting hole, and at least one of the first mounting hole and the second mounting hole is a slotted hole.

7. The circuit breaker according to claim 5, characterized in that the mounting seat (14) comprises a first mounting plate (141) and a second mounting plate (142), the first mounting plate (141) being fixedly connected to the support structure (10), the second mounting plate (142) being connected to the cable tray (30).

8. Circuit breaker according to claim 1 or 2, characterized in that the bottom of the cable bridge (30) is provided with a routing hole (32) through which the interphase cable (20) passes, the routing hole (32) being in communication with the routing slot (31).

9. Circuit breaker according to claim 1 or 2, characterized in that the circuit breaker assembly of at least one phase comprises a control box (44), the control boxes (44) being mounted on the support structure (10) and the interphase cable (20) being connected to the control box (44).

10. Circuit breaker according to claim 9, characterized in that the circuit breaker assembly of at least one phase comprises a pole (45), the pole (45) being arranged on the support structure (10), the pole (45) being provided with a moving contact and a stationary contact inside.