CN220022248U - Branch bus unit allowing bus to be electrified and butt-jointed with long-term equipment - Google Patents
Branch bus unit allowing bus to be electrified and butt-jointed with long-term equipment Download PDFInfo
- Publication number
- CN220022248U CN220022248U CN202320860787.3U CN202320860787U CN220022248U CN 220022248 U CN220022248 U CN 220022248U CN 202320860787 U CN202320860787 U CN 202320860787U CN 220022248 U CN220022248 U CN 220022248U
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- Prior art keywords
- long
- insulators
- bus
- docking
- shell
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Links
- 230000007774 longterm Effects 0.000 title claims abstract description 33
- 239000012212 insulator Substances 0.000 claims abstract description 39
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 238000003032 molecular docking Methods 0.000 claims description 17
- 241000722921 Tulipa gesneriana Species 0.000 claims 1
- 210000001503 joint Anatomy 0.000 abstract description 12
- 238000007789 sealing Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a branch bus unit for allowing a bus to be electrified and butted with long-term equipment, which comprises a shell and insulators connected to two ends of the shell, wherein a closed cavity is formed between one side, close to the two insulators, of the shell and the interior of the shell, and conductors connected with the insulators are arranged in the cavity. The shell and at least two groups of insulators are utilized to form a sealed cavity, a conductor penetrates into the sealed cavity after being fixed by the insulators from the bus side of the early equipment, and the butt joint with the long-term equipment is completed in the sealed cavity, so that the butt joint of the long-term equipment and the bus of the early equipment in an electrified state is completed.
Description
Technical Field
The utility model relates to the technical field of power distribution equipment, in particular to a branch bus unit allowing a bus to be electrified to butt-joint with long-term equipment.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
GIS equipment (gas insulated metal enclosed switchgear) is equipment commonly used in power systems, parts with high voltage in the equipment are all arranged in a sealed metal shell, all components are connected through a bus barrel, electric energy is transmitted through conductors in the bus barrel and are in butt joint with other components, and SF6 gas with certain pressure is filled in the equipment when the equipment operates.
GIS devices are often staged according to different engineering designs, for example, early devices were first configured with busbar sections (including busbar isolation knife and ground knife), and long term reconfiguration of circuit breakers and other configurations. When the long-term equipment is in butt joint with the early-term equipment, the bus part can be in butt joint only after power failure, and the requirements of the power station on power failure time and range are increasingly improved, so that the requirements of the long-term equipment on bus electrification are met.
Disclosure of Invention
In order to solve the technical problems in the prior art, the utility model provides a branch bus unit for allowing a bus to be in electrified butt joint with a long-term device, wherein a shell and at least two groups of insulators are utilized to form a sealed cavity, a conductor penetrates into the sealed cavity after being fixed by the bus side of the early-term device through the insulators, and the butt joint with the long-term device is completed in the sealed cavity, so that the butt joint of the long-term device and the bus of the early-term device in an electrified state is completed.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the first aspect of the utility model provides a branch bus unit for allowing a bus to be electrified and butt-jointed with long-term equipment, which comprises a shell and insulators connected to two ends of the shell, wherein a closed cavity is formed between one side, close to the two insulators, of the shell and the interior of the shell, and conductors connected with the insulators are arranged in the cavity.
The conductor is of a plug-in type structure.
One end of the conductor is connected to the insulator, and the other end is connected to the plum blossom contact.
One set of insulators facing the busbar side of the earlier equipment and the other set of insulators facing the earlier equipment.
The insulator outside towards the long-term equipment side can dismantle the connection seal section of thick bamboo, seal section of thick bamboo demolishs when docking.
An air charging port is arranged on the shell, and insulating gas is filled in the closed cavity.
The insulator is connected to the end of the housing.
Compared with the prior art, the above technical scheme has the following beneficial effects:
the space between the two insulators is matched with the shell to form a closed cavity, long-term equipment is docked after insulating gas with set pressure is filled, and the closed cavity is kept in a closed state during docking, so that the insulating state is maintained, the bus part can be in uninterrupted power, and uninterrupted docking is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic diagram of a branch busbar unit according to one or more embodiments of the present utility model;
in the figure: 1 an inflation inlet, 2 a sealing cylinder, 3 a contact, 4 a first conductor, 5 an insulator and 6 a second conductor.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As described in the background art, when GIS equipment is built in stages, the operation requirement of bus live needs to be met when long-term equipment is docked with early-term equipment, so the following embodiments provide a branch bus unit for allowing bus live docking of long-term equipment, a sealed cavity is formed by a shell and at least two groups of insulators, a conductor is fixed by the bus side of early-term equipment through the insulators and then penetrates into the sealed cavity, docking with long-term equipment is completed in the sealed cavity, and docking of long-term equipment and the bus of early-term equipment in a live state is completed.
Embodiment one:
as shown in fig. 1, the branch bus unit for allowing the bus to be electrified and butt-jointed with the long-term equipment comprises a shell and insulators 5 connected to two ends of the shell, wherein a closed cavity is formed between one side, close to the two insulators, of the shell and the interior of the shell, and conductors connected with the insulators are arranged in the cavity.
The number of conductors is not limited and is arranged according to the actual situation, in this embodiment the conductors comprise a first conductor 4 and a second conductor 6.
The conductor is of a plug-in type structure, namely one end is connected to the insulator, the other ends are mutually plugged, one plug-in end in the embodiment is a contact 3, and the contact 3 can be a plum blossom contact. The two conductors for butt joint are respectively connected to the two insulators, the plug connection is realized in the sealed cavity through the plum blossom contact, and the plug connection part is protected by the insulating gas filled in the sealed cavity.
One group of insulators faces the bus side of the early equipment, and the other group of insulators faces the long-term equipment.
The outside of the insulator facing the side of the long-term equipment is detachably connected with a sealing cylinder 2, and the sealing cylinder is detached during butt joint.
The housing is provided with an inflation port 1 for inflating an insulating gas, for example SF6 gas, into the closed chamber.
The insulator is connected to the end of the housing.
Specific:
the shell part is provided with an inflation valve, an independent air chamber unit is formed by matching with insulators at two ends, a wire hole is arranged on a flange of the insulator, the fixation bolt of the branch unit and the insulator is fastened and fixed when long-term equipment is docked, the branch bus unit is kept in a closed state (vacuum pumping operation is not needed), and the main bus part can keep rated SF6 working pressure, so that live operation is realized. The inside of the branch bus unit adopts a plug-in type connecting conductor, one end of the branch bus unit adopts a bolt for fixing, and the other end of the branch bus unit adopts a plum blossom contact for plug-in type connection, so that the branch bus unit is communicated with the main loop.
When the long-term equipment is docked, SF6 inflation pressure of the branch bus unit is reduced to micro air pressure (less than 0.1 Mpa) through the inflation inlet 1, then the nut and the sealing cylinder 2 at the docking side are removed, and the long-term branch cylinder is docked. When in butt joint, the conductor is used for transmitting power, and the plugging part of the conductor is protected by SF6 gas with micro air pressure.
After the butt joint is finished, the branch cylinders are inflated to rated pressure, and the bus is not required to be disassembled, so that the bus can be ensured to run under SF6 standard pressure in an electrified mode. And the requirement of uninterrupted power supply of the bus is met when the long-term equipment is butted.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The branch bus unit is characterized by comprising a shell and insulators connected to two ends of the shell, wherein a closed cavity is formed between one side, close to the two insulators, of the shell and the interior of the shell, and conductors connected with the insulators are arranged in the cavity.
2. A branch busbar unit for allowing live docking of a long-term device according to claim 1, wherein the conductor is a plug-in type structure.
3. A branch busbar unit for allowing live docking of a long-term device according to claim 2, wherein said conductor is connected at one end to an insulator.
4. A branch busbar unit for allowing live docking of a long-term device according to claim 3, wherein the other end of the conductor is connected to a tulip contact.
5. A branch busbar unit for allowing live docking of a remote device with a busbar according to claim 1, wherein one set of insulators is facing the busbar side of the earlier device and the other set of insulators is facing the remote device.
6. A branch busbar unit for allowing live docking of a remote device according to claim 5, wherein the outside of the insulator facing the side of the remote device is detachably connected to the enclosure.
7. A branching busbar unit for allowing live docking of a long-term device with a busbar as in claim 6, wherein said enclosure is removed when docking the long-term device.
8. A branching busbar unit for allowing live docking of a remote device according to claim 1, wherein said housing is provided with an inflation port.
9. A branching busbar unit for allowing live docking of a long-term device according to claim 1, wherein said enclosed chamber is filled with an insulating gas.
10. A branch busbar unit for allowing live docking of a long-term device according to claim 1, wherein said insulator is attached to the end of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860787.3U CN220022248U (en) | 2023-04-17 | 2023-04-17 | Branch bus unit allowing bus to be electrified and butt-jointed with long-term equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320860787.3U CN220022248U (en) | 2023-04-17 | 2023-04-17 | Branch bus unit allowing bus to be electrified and butt-jointed with long-term equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220022248U true CN220022248U (en) | 2023-11-14 |
Family
ID=88683243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320860787.3U Active CN220022248U (en) | 2023-04-17 | 2023-04-17 | Branch bus unit allowing bus to be electrified and butt-jointed with long-term equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220022248U (en) |
-
2023
- 2023-04-17 CN CN202320860787.3U patent/CN220022248U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |