Double-bus double-section spacing structure
By introducing communication components into GIS equipment and optimizing the spatial layout of the dual-mother dual-segment interval structure, the problems of a large number of components and large footprint are solved, resulting in a more compact equipment layout and lower costs.
Patent Information
- Application Number
- CN202520343499.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing 252kV GIS double busbar double segment layout structure has a large number of components and a large footprint, resulting in high costs and layout limitations due to factory space constraints, which affects equipment use.
The system adopts a dual-bus, dual-segmentation structure. By setting a communication component between the first segmentation and the second segmentation, each of the first segmentation, the second segmentation, and the communication component occupies one segmentation position. The communication component includes a communication module, which simplifies the number of components and optimizes space utilization.
It achieves a compact dual-bus dual-segmentation bay structure, reduces the floor space, simplifies the number of components, and improves the ease of equipment layout and use.
Smart Images
Figure CN223871869U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to GIS equipment technical field especially relates to a double mother double segmentation interval structure. BACKGROUND
[0002] Gas insulated metal enclosed switchgear (GIS) double busbar arrangement structure, based on one busbar live operation, another busbar is in the standby state, assuming that the running busbar fails, then the standby busbar will switch operation, thereby guaranteeing GIS equipment operation continuity. In order to guarantee GIS equipment operation continuity more reliably, guaranteeing the whole station local maintenance and repair without affecting the operation of the whole power station system, increase the interval in the middle of the whole station to disconnect the busbar. By segmenting the busbar, when one section of busbar needs to be maintained and repaired, the normal power supply of another section of busbar can be guaranteed, thereby reducing the power outage range and time.
[0003] In the prior art, for the 252kV GIS double busbar double segmentation arrangement structure, because two busbars need to be disconnected, the busbar needs to be extended axially to occupy the position of four standard intervals, the number of components applied in the four interval positions is more, the cost is improved, and the land area is large, the arrangement is limited by the plant area, and the layout space of other devices in the plant is occupied, which brings limitations to the use of equipment. UTILITARY MODEL CONTENT
[0004] The utility model aims at providing a double mother double segmentation interval structure, which effectively simplifies the number of components, reduces the cost, reduces the land area, and is more beneficial to layout and use.
[0005] To achieve this purpose, the utility model adopts the following technical scheme:
[0006] A double mother double segmentation interval structure, comprising a first segmentation interval, a second segmentation interval and a liaison assembly, wherein,
[0007] The first segmentation interval and the second segmentation interval are arranged along a first direction, the first segmentation interval comprises a first A busbar, a first B busbar and a first segmentation transition busbar arranged along a second direction, the second segmentation interval comprises a second A busbar, a second B busbar and a second segmentation transition busbar arranged along the second direction, the first A busbar is electrically connected with the first segmentation transition busbar, and the second B busbar is electrically connected with the second segmentation transition busbar.
[0008] The liaison assembly is located between the first section interval and the second section interval, the first section interval, the second section interval and the liaison assembly each occupy an interval position in a first direction, the first section transition bus is electrically connected with the second A bus through the liaison assembly, and the first B bus is electrically connected with the second section transition bus through the liaison assembly.
[0009] Preferably, the liaison assembly comprises a first liaison module and a second liaison module, the first liaison module and the second liaison module are located between the first section interval and the second section interval, the first liaison module and the second liaison module are spaced apart along a second direction and jointly occupy an interval position, the first section transition bus and the second A bus are electrically connected through the first liaison module, and the second section transition bus and the first B bus are electrically connected through the second liaison module.
[0010] Preferably, the first liaison module comprises a first liaison A bus and a first liaison transition bus, the first liaison A bus and the first liaison transition bus are electrically connected, the first A bus, the first liaison A bus and the second A bus are coaxial, a first end of the first liaison A bus is spaced apart from the first A bus to form the first interval, and a second end of the first liaison A bus is electrically connected with the second A bus; the first liaison transition bus is coaxial and electrically connected with the first section transition bus.
[0011] The second liaison module comprises a second liaison B bus and a second liaison transition bus, the second liaison B bus and the second liaison transition bus are electrically connected, the first B bus, the second liaison B bus and the second B bus are coaxial, a first end of the second liaison B bus is electrically connected with the first B bus, a second end of the second liaison B bus is spaced apart from the second B bus to form the second interval, and the second liaison transition bus is coaxial and electrically connected with the second section transition bus.
[0012] The first liaison A bus, the second liaison B bus, the first liaison transition bus and the second liaison transition bus are spaced apart along a second direction and jointly occupy an interval position.
[0013] Preferably, the first liaison A bus and the first liaison transition bus are electrically connected through a first connecting bus, and the second liaison B bus and the second liaison transition bus are electrically connected through a second connecting bus.
[0014] Preferably, the first connecting bus is provided in a U-shaped groove structure, and the second connecting bus is arranged in the U-shaped groove structure.
[0015] As preferably, the first tie A busbar, the second tie B busbar, the second tie transition busbar and the first tie transition busbar all extend along the first direction and are arranged in parallel with each other.
[0016] As preferably, the first section interval comprises a first base frame, and the first A busbar, the first B busbar and the first section transition busbar are arranged on the first base frame.
[0017] The second section interval comprises a second base frame, and the second A busbar, the second B busbar and the second section transition busbar are arranged on the second base frame.
[0018] As preferably, the first section interval further comprises a first circuit breaker, and the first circuit breaker is used for controlling the on-off of the first A busbar and the first B busbar.
[0019] The second section interval further comprises a second circuit breaker, and the second circuit breaker is used for controlling the on-off of the second A busbar and the second B busbar.
[0020] As preferably, a first current transformer is arranged between the first A busbar and the first circuit breaker, and a second current transformer is arranged between the first B busbar and the first circuit breaker.
[0021] A third current transformer is arranged between the second A busbar and the second circuit breaker, and a fourth current transformer is arranged between the second B busbar and the second circuit breaker.
[0022] As preferably, the first section interval further comprises a first control cabinet, and the first circuit breaker controls the on-off of the first A busbar and the first B busbar through the first control cabinet.
[0023] The second section interval further comprises a second control cabinet, and the second circuit breaker controls the on-off of the second A busbar and the second B busbar through the second control cabinet.
[0024] Beneficial effects:
[0025] The double-mother double-section interval structure provided by the utility model has the tie assembly arranged between the first section interval and the second section interval, the first section interval, the second section interval and the tie assembly each occupy one interval position, equivalent to that the first section interval, the second section interval and the tie assembly totally occupy three interval positions, so that the structure of the double-mother double-section interval structure is further compact, the floor area is reduced, the number of components is simplified, and the double-mother double-section interval structure is more convenient to arrange and use. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1is a structure schematic view of a double-mother double-section interval structure provided by the utility model;
[0027] Figure 2 is a structure plan view of a double-mother double-section interval structure provided by the utility model;
[0028] Figure 3 is a schematic view of a first-section interval and a first contact module connection provided by the utility model;
[0029] Figure 4 is a schematic view of a first-section interval provided by the utility model;
[0030] Figure 5 is a plan view of a first-section interval and a first contact module connection provided by the utility model;
[0031] Figure 6 is a schematic view of a second-section interval and a second contact module connection provided by the utility model;
[0032] Figure 7 is a schematic view of a second-section interval provided by the utility model;
[0033] Figure 8 is a plan view of a second-section interval and a second contact module connection provided by the utility model.
[0034] In the drawing:
[0035] 1, first-section interval; 101, first interval; 11, first A bus; 12, first B bus; 13, first-section transition bus; 14, first chassis; 15, first circuit breaker; 16, first control cabinet;
[0036] 2, second-section interval; 201, second interval; 21, second A bus; 22, second B bus; 23, second-section transition bus; 24, second chassis; 25, second circuit breaker; 26, second control cabinet;
[0037] 3, first contact module; 31, first contact A bus; 32, first contact transition bus; 33, first connection bus;
[0038] 4, second contact module; 41, second contact B bus; 42, second contact transition bus; 43, second connection bus. DETAILED DESCRIPTION
[0039] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.
[0040] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through the intermediate medium, can be two element internal communication or two element interaction relationship. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.
[0041] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them. Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0042] In the description of the embodiment, the terms "on", "under", "right", etc. orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, just for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are just used to distinguish in the description, and have no special meaning.
[0043] The embodiment provides a double-mother double-section interval structure. Figures 1 to 8 As shown in the figure, the double-mother double-section interval structure includes a first section interval 1, a second section interval 2 and a contact assembly. Wherein, the first section interval 1 and the second section interval 2 are arranged at intervals along a first direction, the first section interval 1 includes a first A bus 11, a first B bus 12 and a first section transition bus 13 arranged at intervals along a second direction, the second section interval 2 includes a second A bus 21, a second B bus 22 and a second section transition bus 23 arranged at intervals along the second direction, the first A bus 11 is electrically connected with the first section transition bus 13, and the second B bus 22 is electrically connected with the second section transition bus 23. The contact assembly is located between the first section interval 1 and the second section interval 2, the first section interval 1, the second section interval 2 and the contact assembly each occupy an interval position in the first direction, the first section transition bus 13 is electrically connected with the second A bus 21 through the contact assembly, and the first B bus 12 is electrically connected with the second section transition bus 23 through the contact assembly.
[0044] In the embodiment, the first direction shown in the figure is the interval direction of the first sub-interval 1, the contact component, the second sub-interval 2, and also the direction in which the three interval positions are arranged. The first direction and the second direction can be two mutually perpendicular horizontal directions.
[0045] In the embodiment, the axes of the first A busbar 11, the first B busbar 12, the first sub-transition busbar 13, the second A busbar 21, the second B busbar 22, and the second sub-transition busbar 23 are arranged along the first direction. The axes of the first A busbar 11 and the second A busbar 21 are arranged coincidentally, the axes of the first B busbar 12 and the second B busbar 22 are arranged coincidentally, and the axes of the first sub-transition busbar 13 and the second sub-transition busbar 23 are arranged staggeredly along the first direction.
[0046] In the embodiment, the contact component is arranged between the first sub-interval 1 and the second sub-interval 2, and the first sub-interval 1, the second sub-interval 2, and the contact component each occupy one interval position, which is equivalent to that the first sub-interval 1, the second sub-interval 2, and the contact component together occupy three interval positions. In this way, the structure of the double-bus double-sub-interval structure can be further compacted, the floor area can be reduced, the number of components can be simplified, and the arrangement and use can be facilitated.
[0047] For example, the interval between the first interval 101 and the second interval 201 is 1.7m-1.8m. The specific value can be 1.7m, 1.725m, 1.75m, 1.775m, or 1.8m. The specific value can be adaptively arranged according to the plant space of the overall arrangement of the double-bus double-sub-interval structure.
[0048] Specifically, the contact component includes a first contact module 3 and a second contact module 4, and the first contact module 3 and the second contact module 4 are located between the first sub-interval 1 and the second sub-interval 2. The first contact module 3 and the second contact module 4 are arranged at intervals along the second direction and jointly occupy one interval position. The first sub-transition busbar 13 and the second A busbar 21 are electrically connected through the first contact module 3, and the second sub-transition busbar 23 and the first B busbar 12 are electrically connected through the second contact module 4. For example, if the first direction is a horizontal direction, the second direction can be another horizontal direction or a vertical direction. In the embodiment, the first contact module 3 and the second contact module 4 are arranged at intervals along the horizontal direction and jointly occupy one interval position.
[0049] Specifically, the first contact module 3 comprises a first contact A bus 31 and a first contact transition bus 32, the first contact A bus 31 and the first contact transition bus 32 are electrically connected, the first A bus 11, the first contact A bus 31 and the second A bus 21 are coaxial, the second end of the first contact A bus 31 is electrically connected with the second A bus 21; the first contact transition bus 32 is coaxial and electrically connected with the first section transition bus 13; the second contact module 4 comprises a second contact B bus 41 and a second contact transition bus 42, the second contact B bus 41 and the second contact transition bus 42 are electrically connected, the first B bus 12, the second contact B bus 41 and the second B bus 22 are coaxial, the first end of the second contact B bus 41 is electrically connected with the first B bus 12, the second contact transition bus 42 is coaxial and electrically connected with the second section transition bus 23; the first contact A bus 31, the second contact B bus 41, the first contact transition bus 32 and the second contact transition bus 42 are arranged at intervals along the second direction and jointly occupy one interval position.
[0050] Specifically, the first A bus 11, the first contact A bus 31 and the second A bus 21 are sequentially arranged along the first direction, and the first A bus 11, the first contact A bus 31 and the second A bus 21 are coaxially arranged. The first B bus 12, the second contact B bus 41 and the second B bus 22 are sequentially arranged along the first direction, and the first B bus 12, the second contact B bus 41 and the second B bus 22 are coaxially arranged. Specifically, the first contact A bus 31, the second contact B bus 41, the second contact transition bus 42 and the first contact transition bus 32 are all arranged in parallel along the first direction.
[0051] Specifically, the first A bus 11, the first transition A bus, the first contact transition bus 32, the first contact A bus 31 and the second A bus 21 jointly form a first bus passage, which can be specifically referred to as the dashed line of the "U-shaped" in Figure 2 . The first B bus 12, the first transition B bus, the second contact transition bus 42, the second contact B bus 41 and the second B bus 22 jointly form a first bus passage, which can be specifically referred to as the double-dot dashed line of the "U-shaped" in Figure 2 .
[0052] In the embodiment, the first end of the first contact A bus 31 and the first A bus 11 form a first interval 101, and the second end of the second contact B bus 41 and the second B bus 22 form a second interval 201. Specifically, the first interval 101 and the second interval 201 can also provide maintenance space for the two bus paths. Specifically, the first A bus 11, the contact assembly, and the second A bus 21 can collectively form a first bus path, and the first A bus 11 and the second A bus 21 can be connected to high-voltage electrical devices, respectively. When one side of the first A bus 11 or one side of the second A bus 21 needs to be maintained, for example, when the first A bus 11 needs to be maintained, the first A bus 11 is disconnected, which does not affect the normal use of the second A bus 21 and the corresponding side high-voltage electrical devices. Maintenance personnel carrying maintenance tools enter the first interval 101 to perform maintenance work on the faulty side A bus. The first B bus 12, the contact assembly, and the second B bus 22 can collectively form a second bus path, and the first B bus 12 and the second B bus 22 can be connected to high-voltage electrical devices, respectively. When one side of the first B bus 12 or one side of the second B bus 22 needs to be maintained, for example, when the first B bus 12 needs to be maintained, the first B bus 12 is disconnected, which does not affect the normal use of the second B bus 22 and the corresponding side high-voltage electrical devices. Maintenance personnel carrying maintenance tools enter the second interval 201 to perform maintenance work on the faulty side B bus.
[0053] Specifically, the first contact A bus 31 and the first contact transition bus 32 are electrically connected through the first connecting bus 33, and the second contact B bus 41 and the second contact transition bus 42 are electrically connected through the second connecting bus 43. The first connecting bus 33 is provided to connect the first contact A bus 31 and the first contact transition bus 32, and the second connecting bus 43 is provided to connect the second contact B bus 41 and the second contact transition bus 42.
[0054] Specifically, the first connecting bus 33 is provided in a U-shaped groove structure, and the second connecting bus 43 is arranged in the U-shaped groove structure. In this way, the space in the interval position where the contact assembly is located can be more fully utilized, and the overall structure is further compact, avoiding the occupation of space in other areas.
[0055] In the embodiment, the first segment interval 1 includes a first chassis 14, and the first A bus 11, the first B bus 12, and the first segment transition bus 13 are arranged on the first chassis 14. The second segment interval 2 includes a second chassis 24, and the second A bus 21, the second B bus 22, and the second segment transition bus 23 are arranged on the second chassis 24. Specifically, the first chassis 14 and the second chassis 24 are arranged in projection overlap along the first direction, which can make the double-bus double-segment structure more regular and facilitate maintenance and repair.
[0056] In the embodiment, the first section interval 1 further comprises a first circuit breaker 15 for controlling the on-off of the first A busbar 11 and the first B busbar 12. Specifically, the first circuit breaker 15 is arranged on the first base frame 14. When one side of the first A busbar 11 or one side of the first B busbar 12 needs to be maintained, the first circuit breaker 15 can be used to disconnect the first A busbar 11 or the first B busbar 12. The second section interval 2 further comprises a second circuit breaker 25 for controlling the on-off of the second A busbar 21 and the second B busbar 22. Specifically, the second circuit breaker 25 is arranged on the second base frame 24. When one side of the second A busbar 21 or one side of the second B busbar 22 needs to be maintained, the second circuit breaker 25 can be used to disconnect the second A busbar 21 or the second B busbar 22.
[0057] Specifically, the first A busbar 11, the first B busbar 12, the first section transition busbar 13, the second A busbar 21, the second B busbar 22 and the second section transition busbar 23 are each connected with a disconnecting switch, which can be controlled to be on or off.
[0058] In the embodiment, a first current transformer is arranged between the first A busbar 11 and the first circuit breaker 15, and a second current transformer is arranged between the first B busbar 12 and the first circuit breaker 15; a third current transformer is arranged between the second A busbar 21 and the second circuit breaker 25, and a fourth current transformer is arranged between the second B busbar 22 and the second circuit breaker 25. The current transformer mainly has the functions of current measurement, relay protection and electrical isolation. Specifically, the current transformer cooperates with a measuring instrument to measure the current of the line. The current transformer can transform high current into low current, so that the measuring instrument can safely and accurately measure the current. The current transformer cooperates with a relay protection device to protect the power system and equipment from overload and overcurrent. When the power system fails, the current transformer can quickly transmit current change information, so that the relay protection device can act in time to cut off the fault circuit and protect the safety of the power system and equipment. The current transformer isolates the measuring instrument, the relay protection device and the high-voltage power grid of the line to ensure the safety of personnel and equipment. The primary side and the secondary side of the current transformer are electrically isolated through electromagnetic induction principle, which avoids the direct influence of the high-voltage power grid on the measuring instrument and the relay protection device.
[0059] In the embodiment, the first sectional interval 1 further comprises a first control cabinet 16, and the first circuit breaker 15 controls the on-off of the first A bus 11 and the first B bus 12 through the first control cabinet 16. The second sectional interval 2 further comprises a second control cabinet 26, and the second circuit breaker 25 controls the on-off of the second A bus 21 and the second B bus 22 through the second control cabinet 26. Specifically, the first control cabinet 16 and the second control cabinet 26 can be LCP cabinets, which are also called on-site control cabinets. The LCP cabinet assembles the switch device, the measuring instrument, the protection electric appliance and the auxiliary device in a closed or semi-closed metal cabinet or a screen frame according to the electrical wiring requirements, and the arrangement thereof should meet the requirements of the normal operation of the power system, facilitate the maintenance, and not endanger the safety of the person and the surrounding equipment.
[0060] Specifically, the first control cabinet 16 and the second control cabinet 26 are arranged in projection coincidence along the first direction, so that the double-mother double-sectional interval structure is more regular as a whole, and the maintenance is facilitated.
[0061] In summary, the double-mother double-sectional interval structure provided in the embodiment occupies three interval positions in total, the overall structure is further compact, the floor area is reduced, the number of components is simplified, and the layout and use are more facilitated.
[0062] Obviously, the above embodiment of the utility model is only for clear illustration of the utility model, and is not a limitation on the implementation mode of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A double-mother double-segmented spacer structure, characterized in that, Includes a first segmented interval (1), a second segmented interval (2), and a communication component; wherein, The first segment interval (1) and the second segment interval (2) are spaced apart along a first direction. The first segment interval (1) includes a first A busbar (11), a first B busbar (12), and a first segment transition busbar (13) spaced apart along a second direction. The second segment interval (2) includes a second A busbar (21), a second B busbar (22), and a second segment transition busbar (23) spaced apart along a second direction. The first A busbar (11) is electrically connected to the first segment transition busbar (13), and the second B busbar (22) is electrically connected to the second segment transition busbar (23). The communication component is located between the first segment interval (1) and the second segment interval (2). The first segment interval (1), the second segment interval (2) and the communication component each occupy an interval position in the first direction. The first segment transition bus (13) is electrically connected to the second A bus (21) through the communication component. The first B bus (12) is electrically connected to the second segment transition bus (23) through the communication component.
2. The double-mother double-segmented spacing structure according to claim 1, characterized in that, The communication component includes a first communication module (3) and a second communication module (4). The first communication module (3) and the second communication module (4) are located between the first segment interval (1) and the second segment interval (2). The first communication module (3) and the second communication module (4) are spaced apart along the second direction and share a common interval position. The first segment transition bus (13) and the second A bus (21) are electrically connected through the first communication module (3). The second segment transition bus (23) and the first B bus (12) are electrically connected through the second communication module (4).
3. The double-mother double-segmented spacing structure according to claim 2, characterized in that, The first communication module (3) includes a first communication A bus (31) and a first communication transition bus (32). The first communication A bus (31) and the first communication transition bus (32) are electrically connected. The axes of the first A bus (11), the first communication A bus (31), and the second A bus (21) coincide. The second end of the first communication A bus (31) is electrically connected to the second A bus (21). The first communication transition bus (32) and the first segmented transition bus (13) are aligned and electrically connected. The second communication module (4) includes a second communication B bus (41) and a second communication transition bus (42). The second communication B bus (41) and the second communication transition bus (42) are electrically connected. The axes of the first B bus (12), the second communication B bus (41) and the second B bus (22) coincide. The first end of the second communication B bus (41) is electrically connected to the first B bus (12). The second communication transition bus (42) is electrically connected to the second segment transition bus (23) with its axes coincided. The first connecting bus A (31), the second connecting bus B (41), the first connecting transition bus (32) and the second connecting transition bus (42) are spaced apart along the second direction and occupy a common space.
4. The double-mother double-segmented spacing structure according to claim 3, characterized in that, The first tie A bus (31) and the first tie transition bus (32) are electrically connected by the first connecting bus (33), and the second tie B bus (41) and the second tie transition bus (42) are electrically connected by the second connecting bus (43).
5. The double-mother double-segmented spacing structure according to claim 4, characterized in that, The first connecting busbar (33) is configured as a U-shaped groove structure, and the second connecting busbar (43) is disposed within the U-shaped groove structure.
6. The double-mother double-segmented spacing structure according to claim 3, characterized in that, The first connecting bus A (31), the second connecting bus B (41), the second connecting transition bus (42) and the first connecting transition bus (32) all extend along the first direction and are arranged parallel to each other.
7. The double-mother double-segmented spacing structure according to claim 1, characterized in that, The first segment interval (1) includes a first base frame (14), and the first A busbar (11), the first B busbar (12) and the first segment transition busbar (13) are all mounted on the first base frame (14); The second segment interval (2) includes a second base frame (24), and the second A busbar (21), the second B busbar (22) and the second segment transition busbar (23) are all located on the second base frame (24).
8. The double-mother double-segmented spacing structure according to claim 1, characterized in that, The first segmented interval (1) further includes a first circuit breaker (15), which is used to control the opening and closing of the first A bus (11) and the first B bus (12); The second segmented bay (2) also includes a second circuit breaker (25), which is used to control the on / off state of the second A bus (21) and the second B bus (22).
9. The double-mother double-segmented spacing structure according to claim 8, characterized in that, A first current transformer is provided between the first A busbar (11) and the first circuit breaker (15), and a second current transformer is provided between the first B busbar (12) and the first circuit breaker (15). A third current transformer is provided between the second A busbar (21) and the second circuit breaker (25), and a fourth current transformer is provided between the second B busbar (22) and the second circuit breaker (25).
10. The double-mother double-segmented spacing structure according to claim 8, characterized in that, The first segmented bay (1) further includes a first control cabinet (16), and the first circuit breaker (15) controls the on / off of the first A bus (11) and the first B bus (12) through the first control cabinet (16); The second segmented bay (2) also includes a second control cabinet (26), through which the second circuit breaker (25) controls the on / off of the second A bus (21) and the second B bus (22).