A busbar connection device for GIS and GIS using the same

Abstract

The present invention belongs to the field of high-voltage electrical equipment, and in particular, relates to a busbar connection device for GIS and a GIS using the device. The busbar connection device for GIS includes a cylinder, a conductor connection component and an insulator. A flange is provided at the end of the cylinder. The conductor connection component is supported by the insulator and is located inside the cylinder. The cylinder is an integrated three-way cylinder, including an L-shaped section and a straight section located at the top of the L-shaped section. The axis of the straight section is perpendicular to the plane where the axis of the L-shaped section is located. The insulator is fixed on any one of the cylinder flanges. The conductor connection component includes a busbar connection conductor and a spacing connection conductor that are detachably connected and are respectively provided in the straight section and the L-shaped section. The cylinder is provided with a hand hole for disassembling and assembling the busbar connection conductor and the spacing connection conductor. The present invention adopts a special-shaped three-way cylinder with a hand hole, which reduces the docking steps between the cylinders, makes the conductor connection component easy to install, improves the installation efficiency and installation quality, reduces the amount of cylinder material used, and reduces the cost.

Description

Technical Field

[0001] The present invention belongs to the field of high-voltage electrical equipment, and in particular relates to a busbar connecting device for GIS and a GIS using the same. Background Art

[0002] The busbars and bays of SF6 gas-insulated metal-enclosed switchgear (GIS) are often connected using busbar connection devices.

[0003] Take the busbar connection device used in the "Z" type layout structure of 550kV GIS as an example. Figure 1-2 As shown, the main components of the GIS busbar connection device include a first barrel 1, a second barrel 2, an insulator 3, a cover 4, and a conductor connection component 5. The ends of the first barrel 1 and the second barrel 2 are respectively provided with a first barrel flange 1-1 and a second barrel flange 2-1. The conductor connection component 5 includes a spherical conductor 5-1, a straight conductor 5-2, an L-shaped conductor 5-3, and a contact base 5-4.

[0004] The first cylinder 1 and the second cylinder 2 are identical T-shaped three-way cylinders. Figure 1 As shown in the perspective, the spherical conductor 5-1 is provided with connection holes on the left, right and bottom directions, and a contact seat 5-4 is connected to each of the left and right ends. The lower end is connected to one end of the I-shaped conductor 5-2, and the other end of the I-shaped conductor 5-2 is fixed on the concave surface of the insulator 3. The upper end of the L-shaped conductor 5-3 is fixed to the convex surface of the insulator 3, and the other end is connected to the contact seat 5-4. The first cylinder flange 1-1 at the lower end of the first cylinder 1, the insulator 3, and the second cylinder flange 2-1 at the lower end of the second cylinder 2 are connected together in sequence by fasteners, and the cover plate 4 is connected to the second cylinder flange 2-1 at the end of the cylinder section of the second cylinder 2 where the conductor connecting component 5 is not arranged by fasteners.

[0005] The above structure uses the method of docking the first cylinder 1 and the second cylinder 2 to complete the spatial direction conversion. The docking of the first cylinder 1 and the second cylinder 2 will reduce the installation efficiency. The docking surface is provided with a first cylinder flange 1-1 and a flange 2-1. The end of the cylinder section of the second cylinder 2 where no conductor connecting component 5 is arranged is provided with a second cylinder flange 2-1 and a cover plate 4, which wastes materials and leads to high costs. Quality problems such as air leakage are prone to occur between the docking surfaces, resulting in substandard installation quality. Summary of the Invention

[0006] The purpose of the present invention is to provide a busbar connection device for GIS, so as to solve the problems of high cost, low installation efficiency and substandard installation quality caused by unreasonable cylinder shape design and multiple docking surfaces in existing busbar connection devices for GIS.

[0007] Another object of the present invention is to provide a GIS using the busbar connecting device.

[0008] In order to solve the above problems, the GIS busbar connection device of the present invention adopts the following technical solutions:

[0009] A busbar connection device for GIS includes a cylinder, a conductor connection component and an insulator. A flange is provided at the end of the cylinder. The conductor connection component is supported by the insulator and is located inside the cylinder. The cylinder is an integrated three-way cylinder, including an L-shaped section and a straight section. The straight section is located at the top of the L-shaped section, and the axis of the straight section is perpendicular to the plane where the axis of the L-shaped section lies. The insulator is fixed to the flange at one end of the cylinder. The conductor connection component includes a busbar connection conductor and a spacer connection conductor that are detachably connected and are respectively arranged in the straight section and the L-shaped section. The cylinder is provided with a hand hole for disassembling and installing the busbar connection conductor and the spacer connection conductor.

[0010] Beneficial effects: The present invention only needs to use one cylinder to realize the function of the busbar connection device. Compared with the commonly used technical solution of using two cylinders, the installation steps of docking between the two cylinders are reduced, and the installation efficiency and installation quality are improved; the number of flanges of a cylinder is three, which is three fewer than the number of flanges in the conventional technical solution, reducing the cost; the hand hole structure on the cylinder can be used to install internal conductors and observe the internal situation of the cylinder. Compared with the conventional technical solution of using one end of a tee for installation and observation, the size of the required cylinder and cover plate is reduced, saving materials and reducing costs.

[0011] Furthermore, the busbar connecting conductor and the interval connecting conductor are detachably connected via a transition conductor. The conductor segmentation design provides high installation flexibility, ease of installation, and improved installation efficiency.

[0012] Furthermore, the insulator is fixed to one end of the U-shaped segment, and the busbar connecting conductor is a T-shaped conductor, one end of which is fixed to the insulator and the other end extends to the other end of the U-shaped segment. The spacer connecting conductor is connected to the other end of the busbar connecting conductor. The T-shaped conductor has a downwardly extending portion to facilitate connection with the adjacent conductor at the lower end.

[0013] Furthermore, the busbar connecting conductor is a hollow structure, and each end is provided with a connection hole for connecting to an adjacent conductor. The design of the connection hole facilitates the connection between the conductor and the adjacent conductor.

[0014] Furthermore, the hand hole is located at the L-shaped section of the cylinder near the transfer conductor. The hand hole is provided here to facilitate the installation of the conductor inside the cylinder.

[0015] Furthermore, the hand hole is located on the outward side of the L-shaped section of the cylinder. There is no other structure on the outward side of the L-shaped section, and it is provided here to facilitate the operation of the installer and improve the installation efficiency.

[0016] Furthermore, the spaced connecting conductor is an L-shaped hollow structure, with connection holes at both ends for connecting to adjacent conductors. The design of the connection holes facilitates the connection between the conductor and the adjacent conductor.

[0017] Furthermore, the insulator is a pot-type insulator, which is easy to install and has a stable support.

[0018] The GIS of the present invention adopts the following technical solutions:

[0019] A GIS using a busbar connection device comprises a busbar, a busbar connection device for GIS and a spacer, wherein the busbar comprises a busbar barrel and a busbar conductor (15), and the spacer barrel and a spacer conductor (16) are provided near the busbar side, the busbar connection device for GIS are connected to the busbar and the spacer respectively, the busbar connection device for GIS comprises a barrel, a conductor connection component and an insulator, a flange is provided at the end of the barrel, the conductor connection component is supported by the insulator and is located inside the barrel, the barrel is an integrated three-way barrel, comprising an L-shaped section and a straight section, the straight section is located at the top of the L-shaped section, the axis of the straight section is perpendicular to the plane where the axis of the L-shaped section is located, the insulator is fixed to the flange at one end of the barrel, the conductor connection component comprises a busbar connection conductor and a spacer connection conductor that are detachably connected and are respectively provided on the straight section and the L-shaped section, and the barrel is provided with a hand hole for disassembling the busbar connection conductor and the spacer connection conductor.

[0020] Beneficial effects: In the busbar connection device adopted by the GIS of the present invention, only one cylinder is needed to realize the functions of the busbar connection device. Compared with the commonly used technical solution using two cylinders, the installation steps of docking between the two cylinders are reduced, and the installation efficiency and installation quality are improved; the number of flanges of a cylinder is three, which is three fewer than the number of flanges in the conventional technical solution, thereby reducing costs; the hand hole structure on the cylinder can be used to install internal conductors and observe the internal conditions of the cylinder. Compared with the solution of using one end of a tee for installation and observation in the conventional technical solution, the size of the required cylinder and cover plate is reduced, material is saved, and costs are reduced.

[0021] Furthermore, the busbar connecting conductor and the interval connecting conductor are detachably connected via a transition conductor. The conductor segmentation design provides high installation flexibility, ease of installation, and improved installation efficiency.

[0022] Furthermore, the insulator is fixed to one end of the U-shaped segment, and the busbar connecting conductor is a T-shaped conductor, one end of which is fixed to the insulator and the other end extends to the other end of the U-shaped segment. The spacer connecting conductor is connected to the other end of the busbar connecting conductor. The T-shaped conductor has a downwardly extending portion to facilitate connection with the adjacent conductor at the lower end.

[0023] Furthermore, the busbar connecting conductor is a hollow structure, and each end is provided with a connection hole for connecting to an adjacent conductor. The design of the connection hole facilitates the connection between the conductor and the adjacent conductor.

[0024] Furthermore, the hand hole is located at the L-shaped section of the cylinder near the transfer conductor. The hand hole is provided here to facilitate the installation of the conductor inside the cylinder.

[0025] Furthermore, the hand hole is located on the outward side of the L-shaped section of the cylinder. There is no other structure on the outward side of the L-shaped section, and it is provided here to facilitate the operation of the installer and improve the installation efficiency.

[0026] Furthermore, the spaced connecting conductor is an L-shaped hollow structure, with connection holes at both ends for connecting to adjacent conductors. The design of the connection holes facilitates the connection between the conductor and the adjacent conductor.

[0027] Furthermore, the insulator is a pot-type insulator, which is easy to install and has a stable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a cross-sectional view of the main view of a conventional busbar connection device for GIS;

[0029] Figure 2 yes Figure 1 A sectional view of the left side view of the busbar connection device for GIS in FIG;

[0030] Figure 3 GIS busbar connection device of the present invention is a sectional view of a front view of an embodiment;

[0031] Figure 4 yes Figure 3 A sectional view of the left side of an embodiment of a busbar connection device for GIS in FIG.

[0032] exist Figure 1-2 Middle: 1. First cylinder; 1-1. First cylinder flange; 2. Second cylinder; 2-1. Second cylinder flange; 3. Insulator; 4. Cover; 5. Conductor connecting component; 5-1. Spherical conductor; 5-2. Linear conductor; 5-3. L-shaped conductor; 5-4. Contact base.

[0033] exist Figure 3-4Middle: 11, cylinder; 11-1, flange; 11-2, hand hole; 12, hand hole cover; 13, insulator; 14, conductor connection component; 14-1, busbar connecting conductor; 14-2, interval connecting conductor; 14-3 transfer conductor; 14-4 contact seat; 15, busbar conductor; 16, interval conductor. DETAILED DESCRIPTION

[0034] The present invention will be further explained below with reference to the drawings.

[0035] The specific embodiment of the GIS busbar connection device of the present invention is as follows: Figure 3-4 As shown, the GIS busbar connection device includes a cylinder 11, a handhole cover 12, an insulator 13, and a conductor connection component 14.

[0036] The cylinder 11 is an integrated three-way cylinder, including an L-shaped section and a straight section. The straight section is located at the top of the L-shaped section, and the axis of the straight section is perpendicular to the plane where the axis of the L-shaped section is located. A flange 11-1 is provided at the end of the cylinder 11, and the insulator 13 is fixed on the flange 11-1 at one end of the straight section of the cylinder 11.

[0037] The conductor connection component 14 is fixed in the cylinder 11 through the insulator 13. The conductor connection component 14 includes a busbar connection conductor 14-1 provided in the I-shaped segment, a spacer connection conductor 14-2 provided in the L-shaped segment, and a transition conductor 14-3. The busbar connection conductor 14-1 is a T-shaped hollow conductor, the spacer connection conductor 14-2 is an L-shaped hollow conductor, and the transition conductor 14-3 is a I-shaped hollow conductor. Figure 4 As shown in the perspective, the right side of the transition conductor 14-3 is provided with an opening and a cover matching the opening, and connection holes are provided at the upper and lower ends. During installation, the upper and lower ends are connected to the adjacent conductors through the side openings, and the cover is installed after the connection is completed.

[0038] One end of busbar connecting conductor 14-1 is fixed to insulator 13, one end is connected to contact holder 14-4, and one end is connected to one end of transition conductor 14-3. The other end of transition conductor 14-3 is connected to the upper end of interval connecting conductor 14-2, and the other end of interval connecting conductor 14-2 is connected to contact holder 14-4. The provision of transition conductor 14-3 makes installation more flexible, easier, and more efficient.

[0039] A hand hole 11 - 2 is provided on the outward side of the L-shaped section near the transition conductor 14 - 3 , and a hand hole cover 12 is fastened to the hand hole 11 - 2 .

[0040] The specific assembly process of the GIS busbar connection device described in this embodiment is as follows:

[0041] like Figure 3As shown in the perspective, the two contact seats 14-4 are connected to the left end of the busbar connecting conductor 14-1 and the tail end of the spacing conductor 14-2 respectively through fasteners, and then the busbar connecting conductor 14-1 is fixed to the insulator 13 through fasteners, and the insulator 13 is fixed to the flange 11-1 on the right side of the shell 11 through fasteners, and the transfer conductor is extended from the L-section port into the cylinder 11, and the hand hole 11-2 is used to complete the fastening connection between the lower end of the busbar connecting conductor 14-1 and the upper end of the transfer connecting conductor 14-3, and the spacing connecting conductor 14-2 assembled with the contact seat 14-4 is extended from the L-section port into the cylinder 11, and the hand hole 11-2 is used to complete the connection between the upper end of the spacing connecting conductor 14-2 and the lower end of the transfer conductor 14-3, thereby completing the installation of the busbar connection device for GIS.

[0042] In this embodiment, the conductor connection component 14 includes a busbar connection conductor 14-1, an interval connection conductor 14-2, a transition conductor 14-3, and a contact base 14-4. In other embodiments, the transition conductor 14-3 may not be provided, and the busbar connection conductor 14-1 and the interval connection conductor 14-2 may be directly connected.

[0043] In this embodiment, the hand hole 11-2 is located on the outward side of the L-shaped section near the transfer conductor 14-3, and there is one hand hole. In other embodiments, the hand hole 11-2 can be located at other locations of the cylinder 11 that facilitate connection of the conductor connection component 14, or multiple hand holes 11-2 can be provided.

[0044] In this embodiment, the insulator 13 is installed at one end of the I-shaped segment. In other embodiments, the insulator 13 can also be installed at one end of the L-shaped segment.

[0045] The GIS embodiment of the present invention using the busbar connection device includes a busbar, a busbar connection device and a spacer. The busbar includes a busbar cylinder and a busbar conductor 15. The spacer is provided with a spacer cylinder and a spacer conductor 16 near the busbar side.

[0046] like Figure 3-4 As shown, the busbar conductor 15 and the spacing conductor 16 are respectively plugged into the corresponding contact seats 14 - 4 to achieve the connection between the busbar conductor and the spacing conductor.

Claims

1. A busbar connection device for GIS, comprising a cylinder (11), a conductor connection component (14) and an insulator (13), wherein a flange (11-1) is provided at the end of the cylinder (11), and the conductor connection component is supported by the insulator and is located inside the cylinder, characterized in that: The cylinder (11) is an integrated three-way cylinder, comprising an L-shaped section and a straight section, the straight section being located at the top of the L-shaped section, the axis of the straight section being perpendicular to the plane where the axis of the L-shaped section is located, the insulator (13) being fixed on a flange (11-1) at one end of the cylinder (11), the conductor connecting component (14) comprising a busbar connecting conductor (14-1) and a spacer connecting conductor (14-2) which are detachably connected and respectively arranged on the straight section and the L-shaped section, and a hand hole (11-2) for disassembling and assembling the busbar connecting conductor and the spacer connecting conductor is provided on the cylinder (11); the insulator is fixed on one end of the straight section, the busbar connecting conductor is a T-shaped conductor, one end of which is fixed to the insulator and the other end of which extends to the other end of the straight section, and the spacer connecting conductor is connected to the other end of the busbar connecting conductor.

2. The GIS busbar connection device according to claim 1, characterized in that: The busbar connecting conductor (14-1) and the interval connecting conductor (14-2) are detachably connected via a switching conductor (14-3).

3. The GIS busbar connection device according to claim 1, characterized in that: The busbar connecting conductor (14-1) is a hollow structure, and each end is provided with a connection hole for connecting to an adjacent conductor.

4. The GIS busbar connection device according to claim 1, characterized in that: The hand hole (11-2) is located in the L-shaped section of the cylinder (11) close to the transfer conductor (14-3).

5. The GIS busbar connection device according to claim 4, characterized in that: The hand hole (11-2) is located on the outward side of the L-shaped section of the cylinder (11).

6. The GIS busbar connection device according to claim 1 or 2, characterized in that: The spaced connecting conductor (14-2) is an L-shaped hollow structure, with connection holes for connecting to adjacent conductors provided at both ends.

7. The GIS busbar connection device according to claim 1, characterized in that: The insulator (13) is a basin-type insulator (13).

8. A GIS using a busbar connection device, comprising a busbar, a busbar connection device for GIS, and a spacer, wherein the busbar comprises a busbar cylinder and a busbar conductor (15), and the spacer is provided with a spacer cylinder and a spacer conductor (16) near the busbar, and the busbar connection device for GIS is connected to the busbar and the spacer respectively, characterized in that: The GIS busbar connection device adopts the GIS busbar connection device described in any one of claims 1 to 7.

Images