CN205724408U - A kind of substation bus bar segmental structure - Google Patents
A kind of substation bus bar segmental structure Download PDFInfo
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- CN205724408U CN205724408U CN201620517705.5U CN201620517705U CN205724408U CN 205724408 U CN205724408 U CN 205724408U CN 201620517705 U CN201620517705 U CN 201620517705U CN 205724408 U CN205724408 U CN 205724408U
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- bus
- lead wire
- disconnecting switch
- segmentation
- wire unit
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- 230000011218 segmentation Effects 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 8
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical group [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 25
- 239000012211 strain insulator Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Abstract
The utility model provides a kind of substation bus bar segmental structure, including multiple segmentation modules, it is distributed in transformer station's original bus section position, segmentation position determines according to transformer station original bus framework position and equipment room safe distance, and segmentation module farther includes: two insulated connecting devices, it is respectively arranged on the fracture of segmentation position, for realizing that the insulation between the first bus being formed after disconnecting and the second bus connects；Section gap device, is arranged at the first bus and the lower section of the second bus, for turning on or cutting off the electrical connection between the first bus and the second bus.On the basis of not changing original bus framework, can be readily achieved the segmentation transformation of original bus, required quantities is little, and transformation is simple.
Description
Technical field
The utility model relates to electrical equipment technical field, is specifically related to a kind of substation bus bar segmental structure.
Background technology
When line feeder number is more, using single bus scheme cannot meet the requirement of power supply reliability, in order to improve power supply reliability, the impact that fault and maintenance are caused is confined in certain scope, and disconnecting switch or breaker can be used sectionalized single busbar connection.By using the bus sectional lized mode of connection; when section switch is connected and is run; either segment bus be short-circuited fault when; under relay protection effect; section switch and the electric power loop breaker being connected on faulty section will disconnect automatically; at this moment non-faulting section bus can continue to run with, and reduces the power failure range of bus-bar fault, improves reliability and the flexibility of power supply.
Just because of the above-mentioned advantage of bus section structure, increasing newly-built transformer station, the arrangement of bus section structure all can be considered as a whole in the design phase.But for old single bus scheme transformer station, be transformed into the bus section structure of routine exist civilwork engineering quantity big, costly, the problem such as long in time limit, and transform and be limited to the existing arrangement of old transformer station and floor space, therefore use the bus section structure of routine to implement difficulty in old transformer station transformation process very big.
Utility model content
Therefore, to be in prior art to use the bus section structure of routine to implement difficulty in old transformer station transformation process very big for the technical problems to be solved in the utility model.
To this end, the utility model embodiment provides following technical scheme:
The utility model provides a kind of substation bus bar segmental structure, including: multiple segmentation modules, being distributed in transformer station's original bus section position, described segmentation position determines according to transformer station original bus framework position and equipment room safe distance, and described segmentation module farther includes:
Two insulated connecting devices, are respectively arranged on the fracture of described segmentation position, for realizing that the insulation between the first bus being formed after disconnecting and the second bus connects；
Section gap device, is arranged at described first bus and the lower section of described second bus, for turning on or cutting off the electrical connection between described first bus and described second bus.
Substation bus bar segmental structure described in the utility model, described insulated connecting device is strain insulator string.
Substation bus bar segmental structure described in the utility model, described section gap device includes the first lead wire unit, the second lead wire unit, the first disconnecting switch, the second disconnecting switch and breaker；
One end of described first lead wire unit electrically connects with described first bus, the other end of described first lead wire unit is connected with one end of described first disconnecting switch, the other end of described first disconnecting switch is connected with one end of described breaker, the other end of described breaker is connected with one end of described second disconnecting switch, the other end of described second disconnecting switch is connected with one end of described second lead wire unit, and the other end of described second lead wire unit electrically connects with described second bus.
Substation bus bar segmental structure described in the utility model, described first lead wire unit and described second lead wire unit are T-shaped wire clamp.
Substation bus bar segmental structure described in the utility model, described section gap device also includes current transformer, is arranged between described first disconnecting switch and described breaker or between described second disconnecting switch and described breaker.
The utility model embodiment technical scheme, has the advantage that
The utility model provides a kind of substation bus bar segmental structure, including multiple segmentation modules, it is distributed in transformer station's original bus section position, segmentation position determines according to transformer station original bus framework position and equipment room safe distance, and segmentation module farther includes: two insulated connecting devices, it is respectively arranged on the fracture of segmentation position, for realizing that the insulation between the first bus being formed after disconnecting and the second bus connects；Section gap device, is arranged at the first bus and the lower section of the second bus, for turning on or cutting off the electrical connection between the first bus and the second bus.On the basis of not changing original bus framework, can be readily achieved the segmentation transformation of original bus, required quantities is little, and transformation is simple.
Brief description
In order to be illustrated more clearly that the utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing of required use in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is some embodiments of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of an instantiation of substation bus bar segmental structure in the utility model embodiment.
Reference:
1-segmentation module；11-insulated connecting device；12-section gap device；121-the first lead wire unit；122-the second lead wire unit；123-the first disconnecting switch；124-the second disconnecting switch；125-breaker；126-current transformer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly fall into the scope of the utility model protection.
In of the present utility model description, it should be noted that, the orientation of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " or position relationship are for based on orientation shown in the drawings or position relationship; be for only for ease of description the utility model and simplifying and describe; rather than instruction or hint indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In of the present utility model description, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection " should be interpreted broadly, for example, it may be fix connection, it is also possible to be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can also is that the connection of two element internals, can be wireless connection, it is also possible to be wired connection.For the ordinary skill in the art, concrete meaning in the utility model for the above-mentioned term can be understood with concrete condition.
As long as just can be combined with each other additionally, technical characteristic involved in the different embodiment of the utility model disclosed below does not constitutes to conflict each other.
Embodiment
Present embodiments provide a kind of substation bus bar segmental structure, as shown in Figure 1, comprising: multiple segmentation modules 1, it is distributed in transformer station's original bus section position, segmentation position determines according to transformer station original bus framework position and equipment room safe distance, and segmentation module 1 farther includes:
Two insulated connecting devices 11, are respectively arranged on the fracture of certain segmentation position, for realizing that the insulation between the first bus a being formed after disconnecting and the second bus b connects.Specifically, during old single bus scheme Transfomer Substation Reconstruction, segmentation position can be determined according to the safe distance of the framework position of original bus and equipment room, after segmentation position disconnects original bus, just can form the first bus a and the second bus b on the basis of original bus, more again insulate by two insulated connecting devices 11 and connect the first bus a and the second bus b.Because segmentation position determines according to original bus framework position and equipment room safe distance, the segmentation of original bus can be realized on the basis of not changing original bus framework, also ensure that the spacing of the electrical equipment being connected with the first bus a and the second bus b meets the requirement of safe distance, it is ensured that the safe and stable operation of each equipment and electrical network simultaneously.
Section gap device 12, is arranged at the first bus a and the lower section of the second bus b, for turning on or cutting off the electrical connection between the first bus a and the second bus b.Specifically, section gap device 12 is arranged at the first bus a and the lower section of the second bus b, saves floor space to greatest extent.Section gap device 12 can set the duty of the first bus a and the second bus b flexibly according to power system operating mode, during paired running, section gap device 12 turns on the electrical connection between the first bus a and the second bus b, two power supplys connecting with the first bus a and the second bus b all can be as the power supply of the equipment connecting with the first bus a and the second bus b, it is ensured that the stability of power supply；During fanout operation, section gap device 12 can cut off the electrical connection between the first bus a and the second bus b, and two sections of buses are independent of each other, and improve reliability and the flexibility of power supply.
Substation bus bar segmental structure in the present embodiment, including multiple segmentation modules, it is distributed in transformer station's original bus section position, segmentation position determines according to transformer station original bus framework position and equipment room safe distance, and segmentation module farther includes: two insulated connecting devices, it is respectively arranged on the fracture of certain segmentation position, for realizing that the insulation between the first bus being formed after disconnecting and the second bus connects；Section gap device, is arranged at the first bus and the lower section of the second bus, for turning on or cutting off the electrical connection between the first bus and the second bus.On the basis of not changing original bus framework, can be readily achieved the segmentation transformation of original bus, required quantities is little, and transformation is simple.
Preferably, the substation bus bar segmental structure in the present embodiment, its insulated connecting device 11 is strain insulator string.Strain insulator string good insulation preformance, while guaranteeing the first bus a and two port insulation of the second bus b, also can make to keep good tension force between the first bus a and the second bus b.
Preferably, the substation bus bar segmental structure in the present embodiment, its section gap device 12 farther includes the first lead wire unit the 121st, the second lead wire unit the 122nd, the first disconnecting switch the 123rd, the second disconnecting switch 124 and breaker 125.Preferably, the first lead wire unit 121 and the second lead wire unit 122 are T-shaped wire clamp.The safe electric current by the first bus a and the second bus b can be compared and cause the first disconnecting switch and the second disconnecting switch.
One end of first lead wire unit 121 electrically connects with the first bus a, and one end of the other end of the first lead wire unit 121 and the first disconnecting switch 123 connects, the other end of the first disconnecting switch 123 with disconnected
One end of road device 125 connects, and the other end of breaker 125 and one end of the second disconnecting switch 124 connect, and the other end of the second disconnecting switch 124 and one end of the second lead wire unit 122 connect, the other end of the second lead wire unit 122 and the electrical connection of the second bus.Specifically, the first disconnecting switch and the second disconnecting switch can be used to disconnect the circuit of zero load electric current, isolate the first bus a or the power supply of the second bus b；And there is obvious cut-off point when gate-dividing state, it is ensured that the safety inspection of other electrical equipments；Can reliably pass through normal duty electric current and short-circuit current when "on" position, it is achieved the transmitting of electric current.Breaker 125, the electrical connection can cut off according to protection control signal, connect between the first bus a and the second bus b, change bus running manner flexibly, reduce bus power failure range, improve reliability and the flexibility of power supply.
Preferably, the substation bus bar segmental structure in the present embodiment, its section gap device 12 also includes current transformer 126, is arranged between the first disconnecting switch 123 and breaker 125 or between the second disconnecting switch 124 and breaker 125.Specifically; the basis for estimation as protection equipment for the current signal of the first bus a or the second bus b can be gathered by current transformer 126; when the first bus a or the second bus b is short-circuited fault; electric current increases above normality threshold; the current signal gathering according to current transformer 126; protection equipment i.e. can determine whether to there occurs short trouble; breaker can be sent a control signal to and disconnect the connection between the first bus a and the second bus b; ensure that the safe operation of non-faulting section bus, reduce the power failure range of bus-bar fault.
Obviously, above-described embodiment is only for clearly demonstrating example, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And among the protection domain that the obvious change thus extended out or variation are created still in the utility model.
Claims (5)
1. a substation bus bar segmental structure, it is characterised in that include: multiple segmentation modules (1),
Being distributed in transformer station's original bus section position, described segmentation position is according to the original bus-bar frame of transformer station
Structure position and equipment room safe distance determine, and described segmentation module (1) farther includes:
Two insulated connecting devices (11), are respectively arranged on the fracture of described segmentation position, in fact
Insulation between the first bus being formed after now disconnecting and the second bus connects；
Section gap device (12), is arranged at described first bus and the lower section of described second bus, uses
In the electrical connection turning on or cut off between described first bus and described second bus.
2. substation bus bar segmental structure according to claim 1, it is characterised in that described absolutely
Edge attachment means (11) is strain insulator string.
3. substation bus bar segmental structure according to claim 1 and 2, it is characterised in that institute
State section gap device (12) include the first lead wire unit (121), the second lead wire unit (122),
First disconnecting switch (123), the second disconnecting switch (124) and breaker (125)；
One end of described first lead wire unit (121) electrically connects with described first bus, and described first draws
The other end of line unit (121) is connected with one end of described first disconnecting switch (123), and described
The other end of one disconnecting switch (123) is connected with one end of described breaker (125), described open circuit
The other end of device (125) is connected with one end of described second disconnecting switch (124), described second every
The other end leaving pass (124) is connected with one end of described second lead wire unit (122), and described
The other end of two lead wire unit (122) electrically connects with described second bus.
4. substation bus bar segmental structure according to claim 3, it is characterised in that described
One lead wire unit (121) and described second lead wire unit (122) are T-shaped wire clamp.
5. substation bus bar segmental structure according to claim 3, it is characterised in that described point
Spacer segment device (12) also includes current transformer (126), is arranged at described first disconnecting switch (123)
And between described breaker (125) or described second disconnecting switch (124) and described breaker (125)
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620517705.5U CN205724408U (en) | 2016-05-31 | 2016-05-31 | A kind of substation bus bar segmental structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620517705.5U CN205724408U (en) | 2016-05-31 | 2016-05-31 | A kind of substation bus bar segmental structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205724408U true CN205724408U (en) | 2016-11-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620517705.5U Active CN205724408U (en) | 2016-05-31 | 2016-05-31 | A kind of substation bus bar segmental structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205724408U (en) |
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2016
- 2016-05-31 CN CN201620517705.5U patent/CN205724408U/en active Active
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