Climbing bus unit for GIS common box

Abstract

The utility model relates to an upward climbing bus unit for a GIS common box, which comprises a transition shell, a three-phase insulation basin I and a three-phase insulation basin II are respectively arranged on the left side and the right side of the transition shell, the horizontal height of the three-phase insulation basin I is higher than that of the three-phase insulation basin II, and three conductive components are arranged in the transition shell. The same-phase terminals of the first three-phase insulation basin and the second three-phase insulation basin are connected through the conductive assembly. According to the utility model, the transition housing is respectively connected with two buses with different heights through the three-phase insulation basin I and the three-phase insulation basin II, and the three-phase terminals of the three-phase insulation basin I and the three-phase insulation basin II are conductively connected and conducted one by one through the three conductive assemblies. Two buses with different heights can be connected through the three-phase insulation basin I and the three-phase insulation basin II, or the three-phase insulation basin I and the three-phase insulation basin II can cross obstacles or intervals which cannot be avoided in the line arrangement process, so that the height difference of different bus units is repaired, stable transition connection is realized, arrangement and installation of common-box GIS buses are facilitated, and the common-box GIS buses are convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switch busbar technology, specifically to a climbing busbar unit for GIS common enclosure. Background Technology

[0002] For three-phase shared-enclosure GIS bays, the height of the three-phase busbars may interfere with the height of a certain bay unit due to the size of that unit. Alternatively, a branch busbar and another branch busbar may not be able to be at the same height as the main busbar. In such cases, the busbar needs to be raised a certain height at that bay to avoid interference with that unit. Therefore, to solve this problem, there is an urgent need for a climbing transition busbar to partially raise the busbar. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a climbing busbar unit for GIS shared enclosures, which can transition and connect two busbars of different heights, thereby facilitating the layout and installation of GIS busbars in shared enclosures.

[0004] This utility model is achieved through the following technical solution: a GIS common box upper climbing busbar unit includes a transition shell. Three-phase insulating basin one and three-phase insulating basin two are respectively provided on the left and right sides of the transition shell. The horizontal height of three-phase insulating basin one is higher than that of three-phase insulating basin two. Three conductive components are provided inside the transition shell. The terminals of the same phase of three-phase insulating basin one and three-phase insulating basin two are connected through the conductive components. The conductive components include an upper horizontal conductor, a plug-in vertical conductor, a bend connector, and a lower horizontal conductor connected in sequence. The upper and lower horizontal conductors are parallel. The upper horizontal conductor is connected to the terminal of three-phase insulating basin one, and the lower horizontal conductor is connected to the terminal of three-phase insulating basin two. The upper end of the plug-in vertical conductor is fixedly connected to the end of the upper horizontal conductor away from three-phase insulating basin one, and the lower end of the plug-in vertical conductor is fixedly connected to the end of the lower horizontal conductor away from three-phase insulating basin two through a bend connector.

[0005] In this design, the transition housing is connected to two busbars of different heights via three-phase insulated tray one and three-phase insulated tray two, respectively. The three-phase terminals of three-phase insulated tray one and three-phase insulated tray two are electrically connected one-to-one through three conductive components. The lower horizontal conductor of the conductive component changes the circuit direction upward through a bend joint. The bend joint then connects to the upper horizontal conductor through a plug-in vertical conductor to form a conductive path, thereby realizing an upward transition of the circuit. This allows for the conductive connection of two busbars of different heights, facilitating the layout and installation of the shared GIS busbar and making it more convenient to use.

[0006] As an optimization, a shielding cap is bolted to the end of the upper transverse conductor away from the three-phase insulating basin. This optimized solution uses the shielding cap to shield the overall electric field and improve the stability of the electric field inside the transition shell.

[0007] As an optimization, the vertical conductor for insertion is a hollow structure. This optimization reduces the weight of the component.

[0008] As an optimization, the bend joint is a hollow structure. This optimization reduces the weight of the component.

[0009] As an optimization, the bending angle of the bend joint is 90°. This optimized solution uses a 90° bend to facilitate the connection of both ends of the bend joint with the lower horizontal conductor and the plug-in vertical conductor.

[0010] As an optimization, the upper end of the bend connector is fixed with a contact seat by bolts, and the lower end of the plug-in vertical conductor is plugged and fixed to the contact seat. This optimized solution adjusts the current flow through the contact seat, increases adaptability, and facilitates installation.

[0011] As an optimization, an external groove is provided on the outer wall of the lower horizontal conductor near the end of the three-phase insulating basin two. An external bolt hole is provided on the side wall of the external groove, and an external bolt for the terminal connection of the three-phase insulating basin two passes through the external bolt hole. This optimized solution makes installation more convenient when the lower horizontal conductor is connected to the convex surface of the three-phase insulating basin using an external bolt connection.

[0012] As an optimization, an operating cavity is formed inward at the end of the lower horizontal conductor away from the third-phase insulating basin II, and an internal bolt hole communicating with the operating cavity is formed at the end of the lower horizontal conductor near the third-phase insulating basin II. An internal bolt for the terminal connection of the third-phase insulating basin II passes through the internal bolt hole. In this optimized design, the internal bolt connection method makes installation more convenient when the lower horizontal conductor is connected to the concave surface of the third-phase insulating basin, and the hollow design reduces the weight of the component.

[0013] As an optimization, the end of the lower horizontal conductor furthest from the second three-phase insulating basin is bolted to an end cap with a sealed operating cavity, and the bend joint and the end cap are bolted together. This optimized solution uses separate assembly for the lower horizontal conductor and the end cap, which facilitates machining, reduces costs, and simultaneously lowers the electric field value, increasing the safety margin.

[0014] As an optimization, a first observation port is provided on the right side of the transition housing, opposite to the first three-phase insulating basin, and a second observation port is provided on the left side of the transition housing, opposite to the second three-phase insulating basin. This optimized design facilitates both the installation of internal conductors and the observation of the internal conditions through these observation ports.

[0015] The beneficial effects of this utility model are as follows: The three-phase terminals of three-phase insulated tray one and three-phase insulated tray two are electrically connected one-to-one through three conductive components. The lower horizontal conductor of the conductive component changes the direction of the circuit upward through the transition of the bend joint. The bend joint is then connected to the upper horizontal conductor through the insertion of the vertical conductor to form a conductive path, thereby realizing the upward transition of the circuit. It can electrically connect three-phase insulated tray one and three-phase insulated tray two with different heights. Furthermore, three-phase insulated tray one and three-phase insulated tray two can connect two busbars with different heights, or cross unavoidable obstacles or gaps during the layout of the line, thereby repairing the height difference of different busbar units, realizing a smooth transition connection, facilitating the layout and installation of shared GIS busbars, and making it convenient to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0019] Figure 4 This is a schematic diagram showing the distribution of the three upper transverse conductors on a three-phase insulating basin.

[0020] Figure 5 This is a cross-sectional view of the upper horizontal conductor;

[0021] Figure 6 A cross-sectional view of the bend connector and contact seat;

[0022] Figure 7 This is a schematic diagram of the connection between the bend joint and the lower horizontal conductor in Example 1.

[0023] Figure 8 This is a schematic diagram of the bend joint and the lower horizontal conductor connection in Embodiment 2;

[0024] Figure 9 This is a schematic diagram of the bend joint and the lower horizontal conductor connection in Embodiment 3;

[0025] As shown in the figure:

[0026] 1. Transition shell; 2. Three-phase insulating basin one; 3. Three-phase insulating basin two; 4. Conductive component; 41. Upper horizontal conductor; 42. Inserted vertical conductor; 43. Bend connector; 44. Lower horizontal conductor; 45. Shielding cap; 46. Contact seat; 5. First observation port; 6. Second observation port; 7. External recess; 8. External bolt hole; 9. Operating cavity; 10. Internal bolt hole; 11. End cap. Detailed Implementation

[0027] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0028] like Figures 1-9 As shown, a GIS common box climbing busbar unit includes a transition housing 1. Three-phase insulating basin 1 2 and three-phase insulating basin 2 3 are respectively provided on the left and right sides of the transition housing 1. The horizontal height of three-phase insulating basin 1 2 is higher than that of three-phase insulating basin 2 3. Three conductive components 4 are provided inside the transition housing 1. The terminals of the same phase of three-phase insulating basin 1 2 and three-phase insulating basin 2 3 are connected through one of the conductive components 4.

[0029] Specifically, a large opening is provided on both the left and right sides of the transition housing 1. The height of the large opening on the left side is higher than that on the right side. The three-phase insulating basin 1 is bolted to the large opening on the left side, and the three-phase insulating basin 2 is bolted to the large opening on the right side.

[0030] In this embodiment, both the three-phase insulating basin 1 (2) and the three-phase insulating basin 2 (3) are provided with phase A terminals, phase B terminals, and phase C terminals. The terminals of the same phase are between phase A terminals, between phase B terminals, and between phase C terminals. This is the conventional structure of existing three-phase insulating basins, and will not be described in detail here.

[0031] In use, the three-phase insulating basin 12 and the three-phase insulating basin 23 can be connected to two branch busbars of different heights respectively. The three-phase terminals of the three-phase insulating basin 12 and the three-phase insulating basin 23 are then connected to each other through three conductive components 4, so as to realize the conductive transition connection of the two branch busbars.

[0032] Specifically, the conductive component 4 includes an upper horizontal conductor 41, a plug-in vertical conductor 42, a bend connector 43, and a lower horizontal conductor 44 connected in sequence. The upper horizontal conductor 41 and the lower horizontal conductor 44 are parallel. The upper horizontal conductor 41 is connected to the terminal of the three-phase insulating basin 2, and the lower horizontal conductor 44 is connected to the terminal of the three-phase insulating basin 3. The upper end of the plug-in vertical conductor 42 is fixedly connected to the end of the upper horizontal conductor 41 away from the three-phase insulating basin 2, and the lower end of the plug-in vertical conductor 42 is fixedly connected to the end of the lower horizontal conductor 44 away from the three-phase insulating basin 3 through the bend connector 43.

[0033] In use, the lower horizontal conductor 44 in the conductive component 4 changes the direction of the circuit upward through the transition of the bend connector 43. The bend connector 43 then connects to the upper horizontal conductor 41 through the insertion of the vertical conductor 42 to form a conductive path, thereby realizing the upward transition of the circuit and realizing the conductive connection of the three-phase insulating basin 1 2 and the three-phase insulating basin 2 3 with different heights.

[0034] The upper horizontal conductor 41, away from the end of the three-phase insulating basin 2, is fixed with a shielding cap 45 by bolts. The shielding cap 45 is located above the inserted vertical conductor 42. The shielding cap can shield the comprehensive electric field and improve the stability of the electric field inside the transition shell.

[0035] In this embodiment, one end of the upper horizontal conductor 41 is fixed to the terminal of the three-phase insulating basin 2 by bolts, the upper end of the plug-in vertical conductor 42 is fixed to the lower surface of the other end of the upper horizontal conductor 41 by bolts, and the shielding cap 45 is fixed to the upper surface of the other end of the upper horizontal conductor 41 by bolts, so that the shielding cap 45 can shield the electric field above the plug-in vertical conductor 42.

[0036] In this embodiment, the bending angle of the bend connector 43 is 90°, which facilitates the connection of both ends of the bend connector 43 with the lower horizontal conductor 44 and the plug-in vertical conductor 42. The upper end of the bend connector 43 is fixed to a contact seat 46 by bolts, and the lower end of the plug-in vertical conductor 42 is plugged into and fixed to the contact seat 46. The current flow is adjusted by the contact seat, which increases adaptability and facilitates installation.

[0037] Preferably, the vertical conductor 42 and the bend connector 43 are hollow structures, which can reduce the weight of the components.

[0038] The transition housing 1 has a first observation port 5 on its right side, opposite to the three-phase insulating basin 2, and a second observation port 6 on its left side, opposite to the three-phase insulating basin 3. Specifically, in this embodiment, both the left and right walls of the transition housing 1 have a small opening. The small opening on the left wall and the three-phase insulating basin 3 on the right wall form the second observation port 6, and the small opening on the right wall and the three-phase insulating basin 2 on the left wall form the first observation port 5. These observation ports facilitate both the installation of internal conductive components and the observation of the internal structure.

[0039] like Figure 1 , 7 As shown, in this embodiment, the end of the lower horizontal conductor 44 furthest from the three-phase insulating basin 3 is fixed to the bend connector 43 by bolts. An external groove 7 is formed on the outer wall of the end of the lower horizontal conductor 44 closest to the three-phase insulating basin 3, and an external bolt hole 8 is formed on the side wall of the external groove 7. An external bolt, connected to the terminal of the three-phase insulating basin 3, passes through the external bolt hole 8. When the lower horizontal conductor 44 is connected to the convex surface of the three-phase insulating basin 3, the lower horizontal conductor and the three-phase insulating basin 3 are fixed by external bolts, making installation more convenient.

[0040] Example 2:

[0041] like Figure 2 , 8As shown, in this embodiment, the end of the lower horizontal conductor 44 furthest from the three-phase insulating basin 2 3 is fixed to the bend connector 43 by bolts. The difference between this embodiment and Embodiment 1 is that: an operating cavity 9 is formed inward at the end of the lower horizontal conductor 44 furthest from the three-phase insulating basin 2 3, and an inner bolt hole 10 communicating with the operating cavity 9 is formed at the end of the lower horizontal conductor 44 near the three-phase insulating basin 2 3. An internal bolt for connecting the terminals of the three-phase insulating basin 2 3 passes through the inner bolt hole 10. In this embodiment, the lower horizontal conductor 44 is integrally formed. When the lower horizontal conductor 44 is connected to the concave surface of the three-phase insulating basin 2 3, the terminals of the lower horizontal conductor 44 and the three-phase insulating basin 2 3 are fixed by internal bolts, which makes installation more convenient. At the same time, the setting of the operating cavity can further reduce the weight of the component.

[0042] Example 3:

[0043] like Figure 3 , 9 As shown, in this embodiment, the lower horizontal conductor 44 and the terminals of the three-phase insulating basin 2 3 are also fixed by internal bolt connection. The difference between this embodiment and embodiment two is that the end of the lower horizontal conductor 44 away from the three-phase insulating basin 2 3 is fixed with an end cap 11 that seals the operating cavity 9 by bolts, and the bend joint 43 and the end cap 11 are fixed by bolts. In this embodiment, the lower horizontal conductor and the end cap are assembled separately, which is beneficial for machining, reduces costs, and at the same time can reduce the electric field value and improve the safety margin.

[0044] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A GIS common enclosure climbing busbar unit, comprising a transition shell (1), characterized in that: The transition housing (1) is provided with a three-phase insulating basin one (2) and a three-phase insulating basin two (3) on the left and right sides respectively. The horizontal height of the three-phase insulating basin one (2) is higher than that of the three-phase insulating basin two (3). The transition housing (1) is provided with three conductive components (4). The terminals of the three-phase insulating basin one (2) and the three-phase insulating basin two (3) are connected through one of the conductive components (4). The conductive component (4) includes an upper horizontal conductor (41), a plug-in vertical conductor (42), a bend connector (43), and a lower horizontal conductor (44) connected in sequence. The upper and lower horizontal conductors are parallel. The upper horizontal conductor (41) is connected to the terminal of the three-phase insulating basin one (2), and the lower horizontal conductor (44) is connected to the terminal of the three-phase insulating basin two (3). The upper end of the plug-in vertical conductor (42) is fixed to the end of the upper horizontal conductor (41) away from the three-phase insulating basin one (2), and the lower end of the plug-in vertical conductor (42) is fixed to the end of the lower horizontal conductor (44) away from the three-phase insulating basin two (3) through the bend connector (43).

2. The GIS shared enclosure climbing busbar unit according to claim 1, characterized in that: The upper transverse conductor (41) is fixed with a shield cap (45) by bolts at the end away from the three-phase insulating basin (2).

3. The GIS common box climbing busbar unit according to claim 1, characterized in that: The vertical conductor (42) is a hollow structure.

4. The GIS common box climbing busbar unit according to claim 1, characterized in that: The bend joint (43) is a hollow structure.

5. The GIS common box climbing busbar unit according to claim 1, characterized in that: The bending angle of the bend joint (43) is 90°.

6. The GIS common box climbing busbar unit according to claim 5, characterized in that: The upper end of the bend connector (43) is fixed to the contact seat (46) by bolts, and the lower end of the plug-in vertical conductor (42) is plugged and fixed to the contact seat (46).

7. The GIS common box climbing busbar unit according to claim 1, characterized in that: The lower horizontal conductor (44) has an external groove (7) on the outer wall of the end near the three-phase insulating basin (3). An external bolt hole (8) is opened on the side wall of the external groove (7). An external bolt that is connected to the terminal of the three-phase insulating basin (3) is inserted in the external bolt hole (8).

8. The GIS common box climbing busbar unit according to claim 1, characterized in that: The lower horizontal conductor (44) has an operating cavity (9) at the end away from the three-phase insulating basin (3), and an inner bolt hole (10) communicating with the operating cavity (9) is opened at the end of the lower horizontal conductor (44) close to the three-phase insulating basin (3). An internal bolt for the terminal connection of the three-phase insulating basin (3) is inserted in the inner bolt hole (10).

9. The GIS common box climbing busbar unit according to claim 8, characterized in that: The end of the lower horizontal conductor (44) away from the three-phase insulating basin (3) is fixed to the end cap (11) of the sealing operation cavity (9) by bolts. The bend joint (43) and the end cap (11) are fixed together by bolts.

10. The GIS common box climbing busbar unit according to claim 1, characterized in that: The right side of the transition housing (1) is provided with a first observation port (5) opposite to the three-phase insulating basin one (2), and the left side of the transition housing (1) is provided with a second observation port (6) opposite to the three-phase insulating basin two (3).

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