CN110323822B - Bus system and spare bus connecting device thereof - Google Patents
Bus system and spare bus connecting device thereof Download PDFInfo
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- CN110323822B CN110323822B CN201910527173.1A CN201910527173A CN110323822B CN 110323822 B CN110323822 B CN 110323822B CN 201910527173 A CN201910527173 A CN 201910527173A CN 110323822 B CN110323822 B CN 110323822B
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- 210000001503 joint Anatomy 0.000 claims description 8
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- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 12
- 239000004020 conductor Substances 0.000 description 8
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The invention relates to the technical field of power systems, provides a bus system and a standby bus connecting device, and can solve the problem that power station equipment in the prior art is high in production cost. The standby bus connecting device comprises a collecting connecting cylinder body which is formed by combining branch cylinder bodies respectively connected with branch buses of each phase; each branch cylinder body is provided with a branch bus connecting end used for connecting the corresponding branch bus and a branch cylinder body connecting end connected with the adjacent branch cylinder body, and one branch cylinder body is provided with a standby bus connecting end connected with the standby bus; the standby bus connecting device also comprises a conductive rod arranged in the collecting connecting cylinder body, and the conductive rod is used for conducting the connecting end of each branch bus and the connecting end of the standby bus; the spare bus connecting end and the branch bus connecting end are rigid connecting ends, and corresponding branch buses and bus cylinders of the spare buses are directly connected; two adjacent branch cylinders are connected through a flexible connecting end formed by a corrugated pipe.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to a bus system and a standby bus connecting device thereof.
Background
In a high-voltage power station transmission system, a three-phase bus and a gas-insulated metal-enclosed switchgear with flow guiding are correspondingly arranged between a three-phase main transformer and a three-phase main bus, if one phase in the three-phase main transformer swells, the whole main transformer needs to be stopped until a fault is repaired, and then the whole main transformer can be put into operation again, the power failure time of the whole power station is long, and the operation reliability of a power station system is low.
In order to solve the problems of long power failure time and low reliability of a power station, an operator in the prior art can use an auxiliary bus in the power station, for example, a power station system and a connecting device thereof disclosed in patent application publication No. CN106712013A and application publication No. 2017.05.24, the power station system comprises a three-phase bus, a main grounding switch and a main disconnecting switch are respectively arranged in the three-phase bus, a single-phase auxiliary bus corresponding to the three-phase bus is also arranged in the power station, the single-phase auxiliary bus is respectively connected with the three-phase bus through a connecting device, and an auxiliary disconnecting switch and a single-phase grounding switch for controlling the on-off of the single-phase auxiliary bus are arranged in the single-phase auxiliary. The wiring device comprises a closed sleeve and a conducting rod arranged in the closed sleeve, wherein the conducting rod is provided with three wiring ends respectively connected with a three-phase bus and a connecting end connected with a single-phase auxiliary bus.
When one phase of three-phase current output by the main transformer is abnormal, the abnormal phase needs to be disconnected with the three-phase bus, and meanwhile, the single-phase auxiliary bus corresponding to the phase is connected into the three-phase bus through the wiring device to replace the abnormal phase, so that the phase current output by the auxiliary transformer is supplemented into the three-phase bus. The abnormal phase quits from running, and the single-phase auxiliary bus with the standby function is put into use, so that the power failure time of the power station system is reduced, and the running reliability is improved. In a power station system, a connecting device for connecting a single-phase auxiliary bus and a three-phase bus comprises a closed sleeve and a conducting rod arranged in the closed sleeve, the closed sleeve consists of four tee tube bodies which are connected in sequence, the tee tube bodies are connected through corrugated tube expansion joints, when each tee tube body is connected with the corresponding single-phase auxiliary bus, the flange plates on the tee tube bodies are butted with the flange plates of the single-phase auxiliary bus tube bodies to realize fixation, and the conduction of a circuit is realized by depending on a basin-shaped insulator fixed between the two flange plates. Through the bellows connection between each tee bend barrel, can remedy GIS foundation error, GIS installation error and barrel manufacturing error, but use more bellows in termination and increased the cost of power station and equipment undoubtedly.
Disclosure of Invention
The invention aims to provide a spare bus connecting device which can solve the problem that power station equipment in the prior art is high in production cost; another object of the present invention is to provide a bus bar system using the spare bus bar connection device, which is convenient to adjust, and has the advantages of low cost and good economical efficiency.
In order to achieve the purpose, the spare bus connecting device adopts the following technical scheme:
the standby bus connecting device comprises a collecting connecting cylinder body, wherein the collecting connecting cylinder body is formed by combining branch cylinder bodies respectively connected with branch buses of each phase;
each branch cylinder body is provided with a branch bus connecting end used for connecting the corresponding branch bus and a branch cylinder body connecting end connected with the adjacent branch cylinder body, and one branch cylinder body is provided with a standby bus connecting end connected with the standby bus;
the standby bus connecting device also comprises a conductive rod arranged in the collecting connecting cylinder body, and the conductive rod is used for conducting the connecting end of each branch bus and the connecting end of the standby bus;
the spare bus connecting end and the branch bus connecting end are rigid connecting ends, and corresponding branch buses and bus cylinders of the spare buses are directly connected;
two adjacent branch cylinders are connected through a flexible connecting end formed by a corrugated pipe.
The beneficial effects are that: when the spare bus connecting device is used by an operator, the spare bus connecting device connects a branch bus and a spare bus through two rigid connecting ends, before connection, an operator directly adjusts the position of the branch bus to ensure the alignment of the branch bus and the standby bus, when the rest two-phase branch bus is connected, the connecting end of the branch bus on the corresponding branch cylinder body is aligned with the bus cylinder of the corresponding branch bus through the two corrugated pipes between the branch cylinder bodies, and the flexible connecting end formed by the corrugated pipes can compensate manufacturing and assembling errors between the branch bus and the spare bus connecting device through self axial and radial deformation. Meanwhile, the position of the branch cylinder body only needs to be adjusted in the assembling process, the adjusting amount is small, the task amount of operators is reduced, time and labor are saved, and the stress between the branch cylinder bodies is also reduced through the corrugated pipe.
Furthermore, on the branch cylinder body provided with the spare bus connecting end, the branch bus connecting end and the spare bus connecting end are arranged on the two opposite sides of the branch cylinder body in a coaxial arrangement mode.
The beneficial effects are that: the branch bus connecting end and the standby bus connecting end are coaxially arranged, so that the position of the branch bus corresponding to the rigid connecting end can be directly adjusted conveniently, and whether the branch bus and the standby bus are aligned or not can be easily determined.
Furthermore, the branch bus connecting ends on the branch cylinders are arranged on the same side of the collecting connecting cylinder.
The beneficial effects are that: the rigid connecting end and the flexible connecting end in the branch bus connecting end are arranged on the same side, so that an operator can conveniently connect the three-phase branch bus with the collecting connecting cylinder, and the structure is simpler.
Furthermore, the branch cylinder body which is simultaneously provided with the branch bus connecting end and the standby bus connecting end is a T-shaped cylinder body, the T-shaped cylinder body corresponds to the side phase bus in the three-phase branch bus, two openings of the T-shaped cylinder body are oppositely arranged along the extending direction of the branch bus, the two openings which are oppositely arranged are used as rigid connecting ends and are respectively connected with the branch bus and the standby bus, and the residual openings of the T-shaped cylinder body are used as the branch cylinder body connecting ends and are flexibly connected with the adjacent branch cylinder bodies.
The beneficial effects are that: the side phase bus and the standby bus are connected in a coaxial mode, an operator has a large operation space to adjust the position of the side phase bus so as to ensure the alignment of the side phase bus and the standby bus, and the T-shaped cylinder is used for facilitating the operator to assemble the conducting rod into the collecting connecting cylinder.
Furthermore, a connecting screw rod with two ends respectively penetrating and arranged on the flanges of the corresponding branch cylinders is arranged between the connecting ends of the two adjacent branch cylinders; the two ends of the connecting screw rod are connected with the cylinder flanges at the corresponding ends through the fixed connecting structures, so that the two adjacent branch cylinders are fixed after the standby bus connecting device is in butt joint.
The beneficial effects are that: the branch cylinder is fixed by connecting the connecting screw rod with the flange of the branch cylinder, the connection relation is firm, the structure is simple, and the connecting screw rod supports the branch cylinder, so that the connection stability is ensured.
Furthermore, the spare bus connecting device also comprises a branch bus bracket which is arranged close to the branch bus connecting end in the collecting connecting cylinder and used for supporting each phase of branch bus.
The beneficial effects are that: the branch bus is supported by the branch bus support, the structure is simple, and the connection stability is ensured.
In order to achieve the purpose, the bus system adopts the following technical scheme:
the bus system comprises a standby bus and three-phase branch buses, wherein a standby bus connecting device is arranged between the three-phase branch buses and the standby bus, the standby bus connecting device comprises a collecting connecting cylinder, and the collecting connecting cylinder is formed by combining branch cylinders respectively connected with the branch buses of each phase;
each branch cylinder body is provided with a branch bus connecting end used for connecting the corresponding branch bus and a branch cylinder body connecting end connected with the adjacent branch cylinder body, and one branch cylinder body is provided with a standby bus connecting end connected with the standby bus;
the standby bus connecting device also comprises a conductive rod arranged in the collecting connecting cylinder body, and the conductive rod is used for conducting the connecting end of each branch bus and the connecting end of the standby bus;
the spare bus connecting end and the branch bus connecting end are rigid connecting ends, and corresponding branch buses and bus cylinders of the spare buses are directly connected;
two adjacent branch cylinders are connected through a flexible connecting end formed by a corrugated pipe.
The beneficial effects are that: when the spare bus connecting device is used by an operator, the spare bus connecting device connects a branch bus and a spare bus through two rigid connecting ends, before connection, an operator directly adjusts the position of the branch bus to ensure the alignment of the branch bus and the standby bus, when the rest two-phase branch bus is connected, the connecting end of the branch bus on the corresponding branch cylinder body is aligned with the bus cylinder of the corresponding branch bus through the two corrugated pipes between the branch cylinder bodies, and the flexible connecting end formed by the corrugated pipes can compensate manufacturing and assembling errors between the branch bus and the spare bus connecting device through self axial and radial deformation. Meanwhile, the position of the branch cylinder body only needs to be adjusted in the assembling process, the adjusting amount is small, the task amount of operators is reduced, time and labor are saved, and the stress between the branch cylinder bodies is also reduced through the corrugated pipe.
Furthermore, on the branch cylinder body provided with the spare bus connecting end, the branch bus connecting end and the spare bus connecting end are arranged on the two opposite sides of the branch cylinder body in a coaxial arrangement mode.
The beneficial effects are that: the branch bus connecting end and the standby bus connecting end are coaxially arranged, so that the position of the branch bus corresponding to the rigid connecting end can be directly adjusted conveniently, and whether the branch bus and the standby bus are aligned or not can be easily determined.
Furthermore, the branch bus connecting ends on the branch cylinders are arranged on the same side of the collecting connecting cylinder.
The beneficial effects are that: the rigid connecting end and the flexible connecting end in the branch bus connecting end are arranged on the same side, so that an operator can conveniently connect the three-phase branch bus with the collecting connecting cylinder, and the structure is simpler.
Furthermore, the branch cylinder body which is simultaneously provided with the branch bus connecting end and the standby bus connecting end is a T-shaped cylinder body, the T-shaped cylinder body corresponds to the side phase bus in the three-phase branch bus, two openings of the T-shaped cylinder body are oppositely arranged along the extending direction of the branch bus, the two openings which are oppositely arranged are used as rigid connecting ends and are respectively connected with the branch bus and the standby bus, and the residual openings of the T-shaped cylinder body are used as the branch cylinder body connecting ends and are flexibly connected with the adjacent branch cylinder bodies.
The beneficial effects are that: the side phase bus and the standby bus are connected in a coaxial mode, an operator has a large operation space to adjust the position of the side phase bus so as to ensure the alignment of the side phase bus and the standby bus, and the T-shaped cylinder is used for facilitating the operator to assemble the conducting rod into the collecting connecting cylinder.
Furthermore, a connecting screw rod with two ends respectively penetrating and arranged on the flanges of the corresponding branch cylinders is arranged between the connecting ends of the two adjacent branch cylinders; the two ends of the connecting screw rod are connected with the cylinder flanges at the corresponding ends through the fixed connecting structures, so that the two adjacent branch cylinders are fixed after the standby bus connecting device is in butt joint.
The beneficial effects are that: the branch cylinder is fixed by connecting the connecting screw rod with the flange of the branch cylinder, the connection relation is firm, the structure is simple, and the connecting screw rod supports the branch cylinder, so that the connection stability is ensured.
Furthermore, the spare bus connecting device also comprises a branch bus bracket which is arranged close to the branch bus connecting end in the collecting connecting cylinder and used for supporting each phase of branch bus.
The beneficial effects are that: the branch bus is supported by the branch bus support, the structure is simple, and the connection stability is ensured.
Drawings
FIG. 1 is a schematic structural view of a bus bar system according to the present invention;
FIG. 2 is an electrical schematic of the bus bar system of the present invention, with DS representing a disconnector and ES representing a grounding switch;
FIG. 3 is an enlarged view of a portion of FIG. 1 at D;
FIG. 4 is a schematic view of the construction of the bellows portion of the backup bus bar connection device of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at E;
in the figure: a 10-A phase branch bus; 20-B phase branch buses; a 30-C phase branch bus; 40-spare bus bar connection means; 41. a branch cylinder body; 411-flange; 412-a first branch cylinder; 413-a second branch cylinder; 413-a third branch cylinder; 42-a conductive rod; a 43-L shaped transition conductor; a 44-T shaped patch conductor; 45-bellows; 46-connecting screw; 47-basin insulator; 50-spare bus; 70-a fixed connection structure; 71-spherical shim packs; 72-a locking nut; 73-tightening the nut.
Detailed Description
The embodiments of the spare bus bar connecting device and the bus bar system according to the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, an embodiment of the bus bar system of the present invention is shown: the bus system comprises an A-phase branch bus 10, a B-phase branch bus 20 and a C-phase branch bus 30 which are independently arranged in three phases, and further comprises standby buses 50 which correspond to the three-phase branch buses respectively and play a role in substitution, when a certain phase branch bus in the bus system cannot work due to a fault, an operator can enable the corresponding standby bus 50 to replace the fault bus by operating a corresponding switch, so that the bus system can still continue to stably work.
The branch buses 10, 20 and 30 include bus cylinders and conductive rods 42 arranged in the bus cylinders, and the bus cylinders of the branch buses include horizontal cylinder bodies arranged along the horizontal direction of the figure and vertical cylinder bodies connected to the horizontal cylinder bodies and arranged along the vertical direction of the figure. The horizontal cylinder is used for connecting with the bus bar cylinder of the spare bus bar 50. The bus system is provided with a spare bus connecting device 40 connected between each phase of branch bus and a spare bus 50, a collection connecting cylinder of the spare bus connecting device 40 is formed by sequentially connecting three separated branch cylinders 41, and the branch cylinders 41 are T-shaped cylinders capable of realizing tee joint. As shown in fig. 3, the first branch cylinder 412 connected to the branch bus bar 10 of phase a at the uppermost layer has two horizontal connection ports arranged at intervals in the horizontal direction and a vertical connection port facing downward, and the second branch cylinder 413 and the third branch cylinder 414 at the middle and lower part of the collective connection cylinder each have two vertical connection ports arranged at intervals in the vertical direction and a horizontal connection port arranged toward the branch bus bar in the horizontal direction. The vertical connection port of the first branch cylinder 412 is butted against the upward vertical connection port of the second branch cylinder 413, and the upward vertical connection port of the third branch cylinder 414 is butted against the downward vertical connection port of the second branch cylinder 413.
Two horizontal connectors of the first branch cylinder 412 are arranged at intervals in the horizontal direction, one of the horizontal connectors is a branch bus connecting end connected with the bus tube of the a-phase branch bus 10, the branch bus connecting end is a rigid connecting end directly connected with the bus tube of the a-phase branch bus 10 through a flange, and the other horizontal connector of the first branch cylinder 412 is a spare bus connecting end directly connected with the bus tube of the spare bus 50 through a flange. The vertical connection port of the second branch cylinder 413 is connected to the first branch cylinder 412 and the third branch cylinder 414 as a branch cylinder connection end, and the horizontal connection port of the second branch cylinder 413 is directly connected to the bus bar cylinder of the B-phase branch bus bar 20 as a branch bus bar connection end. And the horizontal connection port of the third branched cylinder 414 is directly connected to the bus cylinder of the C-phase branched bus 30 as a branched bus connection end. The branch bus bar connection ends of the second branch cylinder 413 and the third branch cylinder 414 are arranged on the same side.
The collecting connection cylinder formed by the connection of the branch cylinders 41 is provided with a conductive rod 42, the conductive rod 42 conducts the three-phase branch bus and the standby bus through an L-shaped switching conductor 43 and a T-shaped switching conductor 44 which realize the conductor turning and linear conductor connection, the connection end of the conductive rod 42 and the conductive rod in the branch bus is correspondingly provided with a contact finger seat or a contact which realizes the conductor sliding connection, and the contact finger seat is internally provided with a spring contact finger to keep conduction with the contact. In this embodiment, both the opening in the collecting connection cylinder and the collecting connection cylinder are provided with basin-type insulators 47, an insert for conducting a circuit is embedded in the basin-type insulators 47, one side of the insert is provided with a contact finger seat in conductive connection with the insert, and the other end of the insert is provided with a contact finger seat or a contact in conductive connection with the insert.
Bellows as flexible connection ends are provided between the first branch cylinder 412 and the second branch cylinder 413, and between the second branch cylinder 413 and the third branch cylinder 414, two ends of the bellows 45 are respectively connected to the vertical connection ports of the two adjacent branch cylinders 41, and the bellows 45 as a flexible connection end can compensate the relative displacement of the two adjacent branch cylinders 41.
As shown in fig. 4 and 5, since the bellows 45 is disposed between the two adjacent branch cylinders 41 along the vertical direction, in order to ensure the stability of the spare bus bar connecting device 40 after the butt joint is completed, a connecting screw 46 disposed axially around the branch cylinder 41 is further disposed between the connecting ends of the two adjacent branch cylinders 41, and both ends of the connecting screw 46 are respectively connected to the flanges 411 of the branch cylinders 41. The flange 411 of the branch cylinder 41 is provided with a through hole for the connection screw 46 to pass through, the aperture of the through hole is larger than the diameter of the connection screw 46, and the connection screw 46 is provided with a fixed connection structure 70 located on two sides of the flange 411 to ensure that the connection screw 46 and the branch cylinder 41 are relatively fixed. The fixed connection structure 70 includes a spherical washer group 71 disposed near a side of the flange 411 of the branch cylinder 41, a lock nut 72 for pressing the spherical washer group 71 against the flange 411, and a jam nut 73 for achieving looseness prevention, and the expansion and contraction length of the bellows 45 can be changed by adjusting the positions of the lock nut 72 and the jam nut 73 on the connection screw 46.
When an operator butt-joints a bus system, branch cylinder corrugated pipes for compensating installation errors during connection of branch buses are arranged among cylinders of phases A, B and C, and cylinders of three-phase branch buses are supported by corresponding supporting seats. When an operator connects, the branch bus 10 of the phase a reaches a preset installation position through the branch cylinder 41 bellows 45 and the movable support seat between the branch bus cylinders corresponding to the phase a, that is, the branch bus of the phase a and the standby bus 50 are in an aligned state, and the branch bus 10 of the phase a after alignment does not need to be adjusted when other branch buses are connected.
When the B-phase branch bus bar 20 and the C-phase branch bus bar 30 are continuously installed, the branch bus bar connection ends of the branch cylinder bodies 41 are aligned with the bus bar cylinders of the B-phase branch bus bar 20 and the C-phase branch bus bar 30 by the bellows 45 between the branch cylinder bodies 41, and finally, the relative fixation between the branch cylinder bodies 41 is ensured by the connection screw 46. The corrugated pipes 45 can compensate the radial and axial installation errors of the collecting connection cylinder, the connection between the three branch cylinders 41 respectively corresponding to the three-phase buses and the standby bus can be completed only by using the two corrugated pipes 45, the corrugated pipes and the supporting seats of the branch cylinders in the B-phase and C-phase branch buses do not need to be adjusted, and the adjustment amount in the whole butt joint process is small.
In the bus system, two groups of three-phase branch buses are arranged in bilateral symmetry, each group of branch buses is connected with a spare bus connecting device 40, and the spare buses 50 corresponding to the two groups of branch buses are connected on the same conductor.
In other embodiments, after the standby bus bar connection device is docked, the branch bus bar supports are used for supporting the branch bus bars of each phase, so that the determination of the relative position of the branch cylinder bodies in the collection connection cylinder body is ensured, and the scheme of connecting a screw rod is not adopted.
In other embodiments, only one set of three-phase branch busbars are arranged in the busbar system, it should be noted that the arrangement structure of the three-phase branch busbars belongs to the prior art, and the improvement proposed by the present invention is to connect the three-phase branch busbars with the standby busbars through the standby busbar connection devices, so the number of the three-phase branch busbars can be set according to the requirements of the busbar system, for example, 4 sets, 6 sets and other three-phase branch busbars are arranged to be connected with the standby busbars through the standby busbar connection devices.
In other embodiments, the position of the spare bus bar connecting end may be set at the middle position of the collecting connection cylinder, and at this time, a cross-shaped branch cylinder having a four-way structure is required to be connected with the corresponding bus bar cylinder, other branch cylinders, and the spare bus bar, respectively, that is, the cross-shaped branch cylinder has one branch bus bar connecting end, one spare bus bar connecting end, and two branch cylinder body connecting ends.
In other embodiments, the horizontal connectors serving as the branch bus connection ends on the branch cylinder body may be arranged in a staggered manner, and an included angle is formed between horizontal projections of the horizontal connectors, so that the horizontal connectors serving as the branch bus connection ends are different in surface, and the scheme that the branch bus connection ends are arranged on the same side of the convergence connection cylinder body is not limited.
In other embodiments, the collective connection cylinder may extend in the horizontal direction, and only the bellows may be provided between the adjacent branch cylinders, and the connection screw for fixing the positions of the adjacent branch cylinders may not be provided.
The spare bus bar connecting device of the present invention has the same structure and use method as those of the spare bus bar connecting device in the above-described embodiment of the bus bar system, and therefore, description of the embodiment of the spare bus bar connecting device will not be repeated.
The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. Reserve bus connection device, its characterized in that:
the collecting connection cylinder is formed by combining three branch cylinders respectively connected with branch buses of each phase; each branch cylinder is a T-shaped cylinder capable of realizing a tee joint,
each branch cylinder body is provided with a branch bus connecting end used for connecting the corresponding branch bus and a branch cylinder body connecting end connected with the adjacent branch cylinder body, and one branch cylinder body is provided with a standby bus connecting end connected with the standby bus;
the standby bus connecting device also comprises a conductive rod arranged in the collecting connecting cylinder body, and the conductive rod is used for conducting the connecting end of each branch bus and the connecting end of the standby bus;
the spare bus connecting end and the branch bus connecting end are rigid connecting ends, and corresponding branch buses and bus cylinders of the spare buses are directly connected;
two adjacent branch cylinders are connected through a flexible connecting end formed by a corrugated pipe, the branch cylinder body which is simultaneously provided with a branch bus connecting end and a spare bus connecting end corresponds to an edge phase bus in a three-phase branch bus, two openings of a T-shaped cylinder body are oppositely arranged along the extending direction of the branch bus, the two oppositely arranged openings are used as rigid connecting ends and are respectively connected with the branch bus and the spare bus, the rest openings of the T-shaped cylinder body are used as the connecting ends of the branch cylinder bodies and are flexibly connected with the adjacent branch cylinder bodies, the first branch cylinder body which is positioned at the uppermost layer and correspondingly connected with the corresponding branch bus is provided with two horizontal connecting ports which are arranged at intervals along the horizontal direction and a vertical connecting port which faces downwards, one horizontal connecting port is the branch bus connecting end connected with the bus cylinder of the corresponding branch bus, and the other horizontal connecting port is the spare bus connecting end directly connected with the bus cylinder, the second branch cylinder body and the third branch cylinder body which are positioned at the middle lower part of the convergence connecting cylinder body are respectively provided with two vertical connectors which are arranged at intervals along the vertical direction and a horizontal connector which is arranged towards a branch bus along the horizontal direction, the vertical connector of the first branch cylinder body is in butt joint with the upward vertical connector in the second branch cylinder body, the upward vertical connector in the third branch cylinder body is in butt joint with the downward vertical connector in the second branch cylinder body, corrugated pipes which are used as flexible connecting ends are arranged between the first branch cylinder body and the second branch cylinder body and between the second branch cylinder body and the third branch cylinder body, two ends of each corrugated pipe are respectively connected with the vertical connectors on the two adjacent branch cylinder bodies, and the corrugated pipes which are used as the flexible connecting ends can compensate the relative displacement of the two adjacent branch cylinder.
2. The backup bus bar connection device according to claim 1, wherein: on the branch barrel that is provided with reserve bus link, branch bus link sets up the both sides that carry on the back mutually of this branch barrel with the mode of coaxial arrangement with reserve bus link.
3. The backup bus bar connection device according to claim 2, wherein: the branch bus connecting ends on the branch cylinders are arranged on the same side of the collecting connecting cylinder.
4. The backup bus bar connection device according to claim 1, wherein: a connecting screw rod with two ends respectively penetrating and arranged on the flanges of the corresponding branch cylinders is arranged between the connecting ends of the two adjacent branch cylinders; the two ends of the connecting screw rod are connected with the cylinder flanges at the corresponding ends through the fixed connecting structures, so that the two adjacent branch cylinders are fixed after the standby bus connecting device is in butt joint.
5. The backup bus bar connection device according to claim 1, wherein: the spare bus connecting device also comprises a branch bus bracket which is arranged close to the branch bus connecting end in the collecting connecting cylinder and is used for supporting each phase of branch bus.
6. Bus-bar system, its characterized in that:
the device comprises a spare bus and a three-phase branch bus, wherein a spare bus connecting device is arranged between the three-phase branch bus and the spare bus, and the spare bus connecting device is the spare bus connecting device in any one of the claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910527173.1A CN110323822B (en) | 2019-06-18 | 2019-06-18 | Bus system and spare bus connecting device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910527173.1A CN110323822B (en) | 2019-06-18 | 2019-06-18 | Bus system and spare bus connecting device thereof |
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| CN110323822A CN110323822A (en) | 2019-10-11 |
| CN110323822B true CN110323822B (en) | 2021-06-25 |
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| CN112202093B (en) * | 2020-08-14 | 2022-06-28 | 平高集团有限公司 | GIS uninterrupted power expansion device and transformer substation |
| CN112736750B (en) * | 2020-11-27 | 2023-05-26 | 河南平高电气股份有限公司 | Combined force balance structure for GIS equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60261310A (en) * | 1984-06-07 | 1985-12-24 | 日新電機株式会社 | Gas insulated switching device |
| JP3158986B2 (en) * | 1995-08-30 | 2001-04-23 | 株式会社日立製作所 | Gas insulated switchgear |
| CN205752999U (en) * | 2016-05-11 | 2016-11-30 | 许继（厦门）智能电力设备股份有限公司 | A kind of GIS is spaced bus isolating construction |
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| CN110323822A (en) | 2019-10-11 |
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