CN114421349A

CN114421349A - GIS bus connecting device and GIS

Info

Publication number: CN114421349A
Application number: CN202111558535.7A
Authority: CN
Inventors: 毕海波; 康留涛; 黄坤鹏; 李健; 李建彬; 赵平; 李鹏; 刘宁华; 郭良浩; 吴运泽; 匡旭良; 赵营; 刘奕杉; 娄晓丹; 司昌杰; 刘永超; 董清华; 张琳琳; 武亚军; 李向远
Original assignee: Henan Pinggao Electric Co Ltd
Current assignee: Henan Pinggao Electric Co Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-04-29
Anticipated expiration: 2041-12-17
Also published as: CN114421349B

Abstract

The invention provides a GIS bus connecting device and a GIS, wherein the GIS comprises a circuit breaker, an isolating switch and a GIS bus connecting device, the GIS bus connecting device comprises a first joint, a second joint and a third joint, the first joint comprises a first cylinder and a first conductor arranged in the first cylinder, the first cylinder is a T-shaped cylinder formed by a vertical section and a horizontal section, the first conductor is an adaptive T-shaped conductor, and bus connecting structures used for being connected with corresponding main buses are respectively arranged at the other two ends of the first cylinder; the second joint comprises a second cylinder and a second conductor, the third joint comprises a third cylinder and a third conductor, the second cylinder and the third cylinder respectively comprise a linear section and a 7-shaped section connected to one radial side of the linear section, the second conductor and the third conductor respectively comprise conductor sections corresponding to the linear section and the 7-shaped section of the corresponding cylinder, and the box-divided bus can be connected with three phases through the GIS bus connecting device provided by the invention.

Description

GIS bus connecting device and GIS

Technical Field

The invention relates to the technical field of GIS, in particular to a GIS bus connecting device and a GIS.

Background

At present, buses in a GIS with a voltage level below 252KV are generally arranged in a common box, three phases are arranged on isolating switches in the GIS in a straight line shape and are consistent with the extending direction of main buses, and the common box buses are connected with the three phases on the isolating switches through a common box bus connecting structure. The existing common-box bus connecting structure generally adopts a structure provided by a patent specification with an authorization publication number of CN202172242U, and comprises a shell, a T-shaped conductor and two L-shaped conductors, wherein three basin-type insulators arranged in a straight line are installed at the top of the shell, the T-shaped conductor is fixed on the basin-type insulator in the middle, and the two L-shaped conductors are respectively fixed on the basin-type insulators on two sides. In the radial direction of the shell, structures for connecting the common box buses on the T-shaped conductor and the two L-shaped conductors are positioned on three vertexes of an isosceles triangle, so that the common box buses for connecting three phases can be arranged in the same shell in a staggered mode.

At present, large-current power transmission needs to be realized in a GIS with a 252KV voltage level, so that the heat productivity of the bus is inevitably increased, and if the bus is still arranged in a common box, the requirement of a product on temperature rise is difficult to meet in a limited space. If the buses adopt a split-box arrangement mode, the existing common-box bus connecting structure cannot be connected with the split-box buses.

Disclosure of Invention

The invention aims to provide a GIS bus connecting device to solve the problem that isolating switches with three phases arranged in a straight line in a GIS and the arrangement direction consistent with the extension direction of buses cannot be connected with branch buses. Meanwhile, the invention also provides a GIS to solve the problems.

The GIS bus connecting device provided by the invention adopts the following technical scheme:

the GIS bus connecting device comprises a first joint, a second joint and a third joint, wherein the first joint is used for being connected with one of three phases of a GIS isolating switch which are arranged in a straight line, the second joint and the third joint are used for being connected with the other two phases of the three phases, the first joint comprises a first cylinder and a first conductor arranged in the first cylinder, the first cylinder is a T-shaped cylinder formed by a vertical section and a horizontal section, the first conductor is an adaptive T-shaped conductor, the lower end of the first conductor is fixed through an insulator arranged at the lower end of the first cylinder, and bus connecting structures used for being connected with corresponding main buses are respectively arranged at the other two ends of the first cylinder; the second joint comprises a second barrel and a second conductor, the third joint comprises a third barrel and a third conductor, the second barrel and the third barrel respectively comprise a linear section and a 7-shaped section connected to one radial side of the linear section, the second conductor and the third conductor respectively comprise conductor sections respectively corresponding to the linear section and the 7-shaped section of the corresponding barrel, the conductor sections corresponding to the 7-shaped section are fixed through insulators arranged at the bottom ends of the corresponding barrels, and bus connecting structures used for being connected with corresponding main buses are respectively arranged at two ends of the conductor sections corresponding to the linear section; the height of the vertical section is not lower than that of the second cylinder and the third cylinder.

Has the advantages that: when the GIS bus connecting device is used, the vertical section of the first joint is connected with any one of the three phases, the horizontal section of the first joint is arranged above the three phases and is consistent with the arrangement direction of the three phases, the vertical sections of the 7-shaped sections on the second joint and the third joint are respectively connected with the other two phases of the three phases, the horizontal sections of the 7-shaped sections on the second joint and the third joint are arranged towards the sides departing from each other, the linear sections of the second joint and the third joint are respectively arranged on the two sides of the three phases and are consistent with the arrangement direction of the three phases, bus connecting structures are arranged at the end parts of the horizontal section of the first joint, the linear sections of the second joint and the third joint, and the box-dividing buses are connected with the corresponding joints through the bus connecting structures, so that the box-dividing buses are connected with the three phases.

Further, the second joint is the same as the third joint.

Has the advantages that: the second joint is the same as the third joint in structure, so that parts of the first joint and the second joint can be universal, and the parts can be processed and classified more conveniently.

Furthermore, the first conductor is a hollow conductor, the lower end of the first conductor is provided with a connecting wall, the first conductor is connected with the central conductor of the corresponding insulator through a fastener on the connecting wall, and an operation hole for operating the fastener is arranged on the circumferential surface of the first conductor close to the connecting wall.

Has the advantages that: the first conductor is a hollow conductor section, so that the weight of the whole device is reduced, and the whole device is lighter; the arrangement of the connecting wall can enable the hollow conductor section to be integrally formed into a hollow structure without blocking at the end, and the heat dissipation performance of the hollow conductor section is enhanced.

Further, a length of a horizontal section of the first conductor top is not greater than an inner diameter at a narrowest location of a vertical section of the first barrel.

Has the advantages that: the horizontal segment length at first conductor top is not more than the internal diameter of the narrowest position department of the vertical section of first barrel, when the first joint of equipment, can accomplish the back with first conductor outside equipment, directly fills in from the lower extreme of the vertical section of first barrel again, improves the packaging efficiency.

Further, the end of the first conductor for connection with the corresponding main bus is provided with a socket for plugging with the bus, and the bus connection mechanism of the first conductor is formed by the socket.

Has the advantages that: the bus connecting mechanism adopts a socket structure, and is convenient to disassemble and assemble.

Furthermore, a limit stop edge is arranged between the inner ends of the two jacks in the first conductor.

Has the advantages that: the limiting blocking edge can prevent the bus from being inserted excessively, so that interference is generated on the bus in the other socket, and poor contact between the bus and the first conductor is caused.

Furthermore, the second conductor is of a split structure with two sections connected, and an operation hole for assembling the second conductor inside is formed in the second cylinder.

Has the advantages that: the second conductor adopts a split structure with two sections connected, so that the second conductor is easier to assemble into the second cylinder.

Further, the distance between the edge of one side of the operation hole close to the insulator at the bottom of the second cylinder and the center of the insulator at the bottom of the second cylinder is not less than the radius of the horizontal section of the first cylinder.

Has the advantages that: this is designed to prevent the operation hole from being located right below the first cylinder and to prevent the first cylinder from interfering when the second conductor is mounted through the operation hole.

Further, at least one section of the second conductor is a hollow conductor.

Has the advantages that: the second conductor is a hollow conductor, which is beneficial to reducing the weight of the whole device, so that the whole device is lighter.

The GIS provided by the invention adopts the following technical scheme:

the GIS comprises a breaker, a disconnecting switch and a bus connecting device, wherein the disconnecting switch comprises a tank body and three phases which are arranged on the tank body in a straight line shape, the middle phase of the three phases is a middle phase, the other two phases are side phases, the bus connecting device is connected with the three phases of the disconnecting switch, the bus connecting device is a GIS bus connecting device, the GIS bus connecting device comprises a first joint, a second joint and a third joint, the first joint is used for being connected with one of the three phases which are arranged in the straight line shape of the GIS disconnecting switch, the second joint and the third joint are used for being connected with the other two phases of the three phases, the first joint comprises a first cylinder body and a first conductor arranged in the first cylinder body, the first cylinder body is a T-shaped cylinder body which is composed of a vertical section and a horizontal section, the first conductor is a T-shaped conductor which is matched, and the lower end of the first cylinder body is fixed through an insulator arranged at the lower end of the first cylinder body, the other two ends are respectively provided with a bus connecting structure for connecting with the corresponding main bus; the second joint comprises a second barrel and a second conductor, the third joint comprises a third barrel and a third conductor, the second barrel and the third barrel respectively comprise a linear section and a 7-shaped section connected to one radial side of the linear section, the second conductor and the third conductor respectively comprise conductor sections respectively corresponding to the linear section and the 7-shaped section of the corresponding barrel, the conductor sections corresponding to the 7-shaped section are fixed through insulators arranged at the bottom ends of the corresponding barrels, and bus connecting structures used for being connected with corresponding main buses are respectively arranged at two ends of the conductor sections corresponding to the linear section; the height of the vertical section is not lower than that of the second cylinder and the third cylinder.

Has the advantages that: in the GIS provided by the invention, three phases which are arranged in a straight line are arranged on a tank body of an isolating switch, a vertical section of a first joint is connected to any one of the three phases, a horizontal section of the first joint is arranged above the three phases and is consistent with the arrangement direction of the three phases, vertical sections of 7-shaped sections on a second joint and a third joint are respectively connected with the other two phases of the three phases, horizontal sections of the 7-shaped sections on the second joint and the third joint are arranged towards one sides which are away from each other, straight sections of the second joint and the third joint are respectively arranged on two sides of the three phases and are consistent with the arrangement direction of the three phases, bus connecting structures are arranged at the end parts of the horizontal section of the first joint, the straight sections of the second joint and the third joint, and branch buses are connected with corresponding joints through the bus connecting structures, so that the connection of the branch buses and the three phases is realized.

Further, the second joint is the same as the third joint.

Further, at least one section of the second conductor is a hollow conductor.

Drawings

FIG. 1 is a schematic diagram of a GIS according to the present invention;

FIG. 2 is a schematic view of the first joint of FIG. 1;

FIG. 3 is a schematic view of the second joint of FIG. 1;

fig. 4 is a cross-sectional view at a-a in fig. 3.

Description of reference numerals:

1. an isolating switch; 11. a tank body; 2. a first joint; 21. a first cylinder; 211. a first barrel horizontal segment; 212. a first barrel vertical section; 213. a first disc insulator; 22. a first conductor; 221. a first conductor vertical section; 222. a connecting wall; 223. a first operation hole; 224. a first conductor horizontal segment; 225. a first socket; 226 a second socket; 227 a first limit stop edge; 3. a second joint; 31. a second cylinder; 311. a linear cylinder section; 312. a 7-shaped barrel section; 313. a second disc insulator; 314. a second operation port; 315. a cover plate; 32. a second conductor; 321. a linear conductor section; 322. a third socket; 323. a fourth jack; 324. a protrusion; 325. a 7-shaped conductor segment; 326. an upper opening; 327. a lower opening; 328 a second limit stop edge; 4. and a third joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is to be noted that, in the embodiments of the present invention, relational terms such as "first" and "second", and the like, which may be present in the terms of the first and second, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, which may be present, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the appearances of the phrase "comprising an … …" or similar limitation may be present without necessarily excluding the presence of additional identical elements in the process, method, article, or apparatus that comprises the same elements.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

Embodiment 1 of GIS in the invention:

as shown in fig. 1, the GIS that this embodiment provided includes circuit breaker, isolator 1 and bus connection device, and wherein isolator includes jar body 11, is equipped with the three-phase on jar body 11, is connected with GIS bus connection device on the three-phase, and the bus passes through GIS bus connection device and is connected with the three-phase on jar body 11.

In this embodiment, the GIS busbar connection device includes three connectors, each of which is connected to a busbar, and the three connectors are a first connector 2, a second connector 3, and a third connector 4. The three phases on the tank body are arranged in a straight line, the arrangement direction of the three phases is consistent with the extension direction of the main bus, the arrangement direction of the three phases is set to be the front-back direction, the middle phase is positioned in the middle of the three phases, and the other two phases are side phases. The first joint 2 is connected with the middle of three phases, the second joint 3 and the third joint 4 have the same structure, and the second joint and the third joint are respectively arranged on two side phases of the three phases in a staggered manner in tandem. The first, second and third joints are cast from aluminum alloy.

Specifically, as shown in fig. 2, the first connector 2 includes a first cylinder 21 and a first conductor 22 located in the first cylinder 21, as shown in fig. 2, the first cylinder 21 is a T-shaped cylinder, the first conductor 22 is a T-shaped conductor adapted to the first cylinder 21, the first cylinder 21 includes a first cylinder vertical section 212 and a first cylinder horizontal section 211 located on an upper side of the first cylinder vertical section 212, and both the first cylinder horizontal section 211 and the first cylinder vertical section 212 are equal-diameter cylinders. The first conductor 22 includes a first conductor vertical section 221 and a first conductor horizontal section 224 located on the upper side of the first conductor vertical section 221. First conductor horizontal segment 224 is disposed in first barrel horizontal segment 211 and is aligned with the direction in which first barrel horizontal segment 211 extends, and first conductor vertical segment 221 is disposed in first barrel vertical segment 212 and is aligned with the direction in which first barrel vertical segment 212 extends. A first disc insulator 213 is disposed at a lower port of the first cylinder vertical section 212, the first conductor vertical section 221 is supported and mounted on the first disc insulator 213, in order to reduce the weight of the first conductor 22, the first conductor vertical section 221 is of a hollow structure, a connecting wall 222 is disposed at a lower end of the first conductor vertical section 221, the connecting wall 222 is connected to a center conductor on the first disc insulator 213 through a screw, the connecting wall is connected to the first disc insulator 213 through a screw, a first operation hole 223 is disposed on the first conductor vertical section 221, the first operation hole is disposed near the connecting wall 222, and the screw can be operated through the first operation hole 223 to mount the vertical section 221 of the first conductor on the first disc insulator 213.

In this embodiment, the lower end of the first cylindrical vertical section 212 is connected to the middle of three phases through the first disc insulator 213, the first conductor horizontal section 224 is located right above the three phases, the extending direction of the first conductor horizontal section 224 is consistent with the arrangement direction of the three phases, two ends of the first conductor horizontal section 224 are provided with sockets, the two sockets are respectively a first socket 225 and a second socket 226, the first socket 225 and the second socket 226 are respectively plugged with a main bus extending from the corresponding direction, and in order to prevent the main bus from being inserted in a transition manner, the first socket 225 and the second socket 226 are separated by the first limit edge 227. In addition, the length of the first horizontal conductor segment 224 is smaller than the radial dimension of the first vertical cylinder segment 212, and in other embodiments, the length of the first horizontal conductor segment 224 may be equal to the radial dimension of the first vertical cylinder segment 212, so as to ensure that the first conductor 22 can be loaded into the first cylinder 21 from the lower end port of the first vertical cylinder segment 212.

In this embodiment, since the second and third joint structures are the same, the structure of the second and third joints will be specifically described by taking the second joint 3 as an example. The second joint 3 includes a second barrel 31 and a second conductor 32 in the second barrel 31, as shown in fig. 3 and 4, the second barrel 31 includes a straight barrel section 311 and a 7-shaped barrel section 312, the second conductor 32 is fitted to the second barrel 31, and the second conductor 32 includes a straight conductor section 321 and a 7-shaped conductor section 325, respectively. The one-line conductor segment 321 is arranged in the one-line cylinder segment 311 in conformity with the extending direction of the one-line cylinder segment 311, and the 7-line conductor segment 325 is arranged in the 7-line cylinder segment 312 in conformity with the extending direction of the 7-line cylinder segment 312.

In this embodiment, the linear cylinder section 311 and the 7-shaped cylinder section 312 are of an integral structure, the 7-shaped cylinder section 312 is connected to one radial side of the linear cylinder section 311, and a second disc insulator 313 is provided at a lower end port of the 7-shaped cylinder section 312. The in-line conductor segment 321 and the 7-shaped conductor segment 325 are separate bodies, the upper end of the 7-shaped conductor segment 325 is connected to the protrusion 324 on the radial side of the in-line conductor segment 321 by bolts, the protrusion 324 is only used for convenience of connection with the 7-shaped conductor segment 325, in other embodiments, the protrusion 324 may be omitted, the upper end of the 7-shaped conductor segment 325 is directly connected to the radial side of the in-line conductor segment 321, and the lower end of the 7-shaped conductor segment 325 is supported and mounted on the second disc insulator 313. As shown in fig. 4, the 7-shaped conductor segment 325 has a hollow structure, a lower opening 327 is provided near the lower end of the 7-shaped conductor segment 325, and a bolt is operable through the lower opening 327 to connect the lower end of the 7-shaped conductor segment 325 to the center conductor on the second disc insulator 313. An upper opening 326 is provided near the upper end of the 7-shaped conductor segment 325, and a screw is operable to connect the upper end of the 7-shaped conductor segment 325 to the protrusion 324 of the in-line conductor 321 through the upper opening 326.

In this embodiment, the lower end of the 7-shaped cylinder 312 is supported and installed on one phase of the front side of the intermediate phase, and the horizontal portion of the 7-shaped cylinder 312 extends toward the left side, so that the one-shaped cylinder section 311 is located on the left side of the three phases, and the extending direction of the one-shaped cylinder section 311 is the same as the arrangement direction of the three phases. To avoid interference, the height of the first vertical cylinder section 212 needs to be higher than the height of the 7-shaped cylinder section (which may be equal in other embodiments) so that the first horizontal cylinder section 211 is arranged above the second joint 3. The two ends of the first-shaped conductor section 321 are provided with jacks, the two jacks are respectively a third jack 322 and a fourth jack 323, the third jack 322 and the fourth jack 323 are respectively plugged with a main bus extending from the corresponding direction, and in order to prevent the main bus from being inserted in a transition manner, the third jack 322 and the fourth jack 323 are separated by a second limit baffle edge 328.

In this embodiment, the 7-shaped barrel 312 is further provided with a second operation port 314, the second operation port 314 is located on the horizontal portion of the 7-shaped barrel 312, and a cover plate 315 for blocking the second operation port 314 is disposed at the second operation port 314. When the second conductor 32 is assembled, the second disc insulator 313 is connected to the 7-shaped conductor segment 325, the assembled second disc insulator 313 and 7-shaped conductor segment 325 are placed in the second barrel 32, the second disc insulator 313 is fixed to the lower end of the second barrel 31, the in-line conductor segment 321 is inserted from the port of the in-line barrel segment 311, a screwing tool is inserted from the second operation port 314, and the screw is operated through the upper opening 326 to connect the upper end of the 7-shaped conductor segment to the protrusion 324. In addition, the distance from the center of the second basin-shaped insulator 313 to the horizontal direction of the second operation port 314 is greater than the radius of the first cylinder horizontal section 211, so that the vertical part of the 7-shaped cylinder section 312 is located below the first cylinder horizontal section 211, and the first cylinder horizontal section 211 can be prevented from shielding the second operation port 314 in the vertical direction.

In this embodiment, the third joint 4 includes a third cylinder and a third conductor located in the third cylinder, the third cylinder has the same structure as the second cylinder 31, the third conductor has the same structure as the second conductor 32 and is distinguished from the second joint 2, the third cylinder includes a straight cylinder section one and a 7-shaped cylinder section one, the third conductor includes a straight conductor section one and a 7-shaped conductor section one, the straight cylinder section one and the 7-shaped cylinder section one have the same structure as the straight cylinder section 311 and the 7-shaped cylinder section 312 on the second joint 2, and the straight conductor section one and the 7-shaped conductor section one have the same structure as the straight conductor section 321 and the 7-shaped conductor section 325 on the second joint 2, and description thereof will not be repeated.

Next, description will be made of an arrangement of the third joint 4 in which the vertical portion of the first 7-shaped cylinder section is supported and mounted on the rear one of the intermediate phases, and the horizontal portion of the first 7-shaped cylinder section extends to the right side, opposite to the second joint 3, so that the first straight cylinder section is located on the right side of the three phases and the first straight cylinder section extends in the same direction as the arrangement direction of the three phases. The two ends of the first I-shaped conductor section are provided with jacks, the two jacks are respectively a fifth jack and a sixth jack, the fifth jack and the sixth jack are respectively plugged with a main bus extending from the corresponding direction, and the fifth jack and the sixth jack are separated by a third limiting blocking edge for preventing the main bus from being inserted in a transition mode. In the left-right direction, a straight conductor section, a first conductor horizontal section and a straight conductor section I are arranged on three vertexes of an isosceles triangle, and three buses arranged in a box can be respectively connected with corresponding joints.

Embodiment 2 of GIS in the invention:

the present embodiment is different from embodiment 1 in that the second joint and the third joint have the same structure in embodiment 1. In the embodiment, the second joint and the third joint have different structures, and the specific difference is that the second joint and the third joint have different sizes. In other embodiments, the second conductor in the second joint is a split structure with two sections connected, or the second conductor in the second joint is a unitary structure.

Embodiment 3 of GIS in the present invention:

the present embodiment is different from embodiment 1 in that in embodiment 1, the first joint is arranged on the middle phase among the three phases, the second joint is arranged on the phase on the front side of the middle phase, and the third joint is arranged on the phase on the rear side of the middle phase. In this embodiment, the second terminal is disposed on the intermediate phase among the three phases, the third terminal is disposed on the phase on the front side of the intermediate phase, and the first terminal is disposed on the phase on the rear side of the intermediate phase. In other embodiments, the third joint is disposed on an intermediate phase of the three phases, the first joint is disposed on a phase on a front side of the intermediate phase, and the second joint is disposed on a phase on a rear side of the intermediate phase.

Embodiment 4 of GIS in the present invention:

this embodiment is different from embodiment 1 in that in embodiment 1, the bus bar connecting structure of the first conductor is a socket. In this embodiment, the bus bar connecting structure of the first conductor is a wire clamp.

Embodiment 5 of GIS in the present invention:

the present embodiment is different from embodiment 1 in that, in embodiment 1, the first cylinder vertical section is a cylinder with an equal diameter. In this embodiment, the vertical section of the first cylinder is a variable diameter cylinder, and the length of the horizontal section of the first conductor is not greater than the inner diameter of the narrowest position of the vertical section of the first cylinder.

Embodiment 6 of GIS in the present invention:

this embodiment is different from embodiment 1 in that in embodiment 1, the 7-shaped conductor section of the second conductor is a hollow conductor. In this embodiment, the linear conductor section of the second conductor is a hollow conductor. In other embodiments, both the 7-shaped conductor segment and the in-line conductor segment are hollow conductors.

The embodiment of the GIS bus connecting device of the invention comprises the following steps:

the GIS bus connecting device in this embodiment has the same structure as the GIS bus connecting device in GIS embodiment 1, and is not described herein again.

In other embodiments, the structure of the GIS bus connection device in any of the above GIS embodiments 2 to 6 may also be adopted, and will not be described herein again.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims

The GIS bus connecting device comprises a first connector (2) connected with one of three phases of a GIS isolating switch in a straight line arrangement, a second connector (3) connected with the other two phases of the three phases of the GIS isolating switch, and a third connector (4), and is characterized in that the first connector (2) comprises a first cylinder (21) and a first conductor (22) arranged in the first cylinder (21), the first cylinder (21) is a T-shaped cylinder formed by a vertical section and a horizontal section, the first conductor (22) is an adaptive T-shaped conductor, the lower end of the first cylinder is fixed through an insulator arranged at the lower end of the first cylinder (21), and bus connecting structures used for being connected with corresponding main buses are respectively arranged at the other two ends of the first cylinder; the second joint (3) comprises a second cylinder (31) and a second conductor (32), the third joint comprises a third cylinder and a third conductor, the second cylinder (31) and the third cylinder respectively comprise a linear section and a 7-shaped section connected to one radial side of the linear section, the second conductor (32) and the third conductor respectively comprise conductor sections respectively corresponding to the linear section and the 7-shaped section of the corresponding cylinder, the conductor sections corresponding to the 7-shaped section are fixed through insulators arranged at the bottom ends of the corresponding cylinders, and bus connecting structures used for being connected with corresponding main buses are respectively arranged at two ends of the conductor sections corresponding to the linear section; the height of the vertical section is not lower than that of the second cylinder and the third cylinder.
2. The GIS busbar connection device according to claim 1, wherein the second joint (3) is identical to the third joint (4).
3. The GIS bus bar connection device according to claim 1 or 2, wherein the first conductor (22) is a hollow conductor, the lower end of the first conductor is provided with a connection wall (222), and the first conductor is connected with the center conductor of the corresponding insulator through a fastener on the connection wall (222), and the first conductor (22) is provided with an operation hole for operating the fastener on the circumferential surface near the connection wall (222).
4. The GIS busbar connection device according to claim 3, wherein the horizontal section of the top of the first conductor (22) has a length no greater than the inner diameter at the narrowest point of the vertical section of the first cylinder (21).
5. The GIS busbar connection device according to claim 1 or 2, wherein the end of the first conductor (22) for connection to a corresponding main busbar is provided with a socket for plugging with a busbar, the busbar connection means of the first conductor (22) being constituted by said socket.
6. The GIS busbar connection of claim 5, wherein a stop edge is provided in said first conductor (22) between the inner ends of said sockets.
7. The GIS busbar connection device according to claim 1 or 2, wherein the second conductor (32) is a split structure with two sections connected, and the second cylinder (31) is provided with an operation hole for assembling the inner second conductor (32).
8. The GIS bus bar connecting device according to claim 7, wherein the edge of the side of the operating hole close to the insulator at the bottom of the second cylinder (31) is not less than the radius of the horizontal section of the first cylinder (21) from the center of the insulator at the bottom of the second cylinder (31).
9. The GIS busbar connection of claim 7, wherein at least a segment of the second conductor (32) is a hollow conductor.
The GIS comprises a circuit breaker, a disconnecting switch (1) and a bus connecting device, wherein the disconnecting switch (1) comprises a tank body (11) and three phases which are arranged on the tank body (11) in a straight line shape, the middle of the three phases is a middle phase, the other two phases are side phases, and the bus connecting device is connected with the three phases of the disconnecting switch, and is characterized in that the bus connecting device is the GIS bus connecting device as claimed in any one of claims 1 to 9.