CN108879343B - HGIS double-interval annular bus device - Google Patents
HGIS double-interval annular bus device Download PDFInfo
- Publication number
- CN108879343B CN108879343B CN201810697982.2A CN201810697982A CN108879343B CN 108879343 B CN108879343 B CN 108879343B CN 201810697982 A CN201810697982 A CN 201810697982A CN 108879343 B CN108879343 B CN 108879343B
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- China
- Prior art keywords
- outgoing line
- groups
- sleeve
- line isolating
- current transformer
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- 239000012212 insulator Substances 0.000 claims description 19
- 229910052573 porcelain Inorganic materials 0.000 claims description 18
- 238000009413 insulation Methods 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 4
- 229910018503 SF6 Inorganic materials 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 2
- 101100268078 Mus musculus Zbtb24 gene Proteins 0.000 description 2
- 101100335694 Oryza sativa subsp. japonica G1L6 gene Proteins 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses an HGIS double-interval annular bus device, which comprises two groups of combined electrical appliances, wherein a first outgoing isolating switch, a second current transformer, a circuit breaker and a first current transformer of each group of combined electrical appliances are sequentially and electrically connected in series, an outgoing line side sleeve is electrically connected with the first current transformer, a bus side sleeve is electrically connected with the first outgoing line isolating switch, and the first outgoing line isolating switch is also connected with the second outgoing line isolating switch; the first outgoing line isolating switches of the two groups of combined electrical appliances are connected with each other, and the second outgoing line isolating switches of the two groups of combined electrical appliances are also connected with each other. The invention has the advantages that: the two groups of first outgoing line isolating switches and the two groups of second outgoing line isolating switches form an annular loop, the original six groups of connecting sleeve pipes are reduced to four groups of connecting sleeve pipes, the longitudinal size of the corresponding distribution device is reduced from original 28 meters to 17 meters, 39.3% of land is reduced, and the land is effectively saved.
Description
Technical Field
The invention relates to an HGIS double-interval annular bus device.
Background
Two HGIS intervals in a conventional back-to-back arrangement are shown in FIG. 1, requiring a total of 6 sets of bussing bushings, each spaced with 2 sets of bussing bushings and 1 set of bussing bushings. According to the design specification, the distance between the non-blocking electrified parts of the 220kV outdoor distribution device, which are parallel to each other and are not subjected to power failure maintenance at the same time, is 3800mm, and the distance between the HGIS equalizing ring and a certain safety margin 2 group of sleeves is 4500mm. The conventional back-to-back arrangement is convenient for equipment to be hoisted on a road with 3000mm in the middle of 2 intervals, so that the interval between 2-loop interval sleeves is designed according to 6500mm, and the conventional back-to-back arrangement occupies a large field and is quite unsuitable in the prior art with less land resources.
Disclosure of Invention
The invention aims to provide an HGIS double-interval annular bus device, which can effectively solve the problem that the spacing between two HGIS devices which are not only back to back is too large, and the occupied land area is too large.
In order to solve the technical problems, the invention is realized by the following technical scheme: the HGIS double-interval annular bus device comprises two groups of combined electrical appliances, wherein each group of combined electrical appliances comprises a breaker, a first outgoing line isolating switch, a second outgoing line isolating switch, a first current transformer, a second current transformer, an outgoing line side sleeve and a bus side sleeve, the first outgoing line isolating switch, the second current transformer, the breaker and the first current transformer are sequentially and electrically connected in series, and the first outgoing line isolating switch, the breaker, the first current transformer and the second current transformer which are electrically connected are sealed in an insulating gas chamber by taking sulfur hexafluoride gas as an insulating medium, the outgoing line side sleeve is electrically connected with the first current transformer, and the bus side sleeve is electrically connected with the first outgoing line isolating switch which is also connected with the second outgoing line isolating switch; the first outgoing line isolating switches of the two groups of combined electrical appliances are connected with each other, and the second outgoing line isolating switches of the two groups of combined electrical appliances are also connected with each other.
Preferably, the two groups of first outgoing line isolating switches and the two groups of second outgoing line isolating switches are connected through GIL pipelines. Through GIL pipeline connection, the overall electrical performance is improved.
Preferably, the GIL pipeline comprises a porcelain insulator sleeve and a connecting air chamber, the end part of the porcelain insulator sleeve is fixed with the connecting air chamber, a sealing gasket is arranged between the connecting air chamber and the porcelain insulator sleeve, a plurality of groups of insulation adjusting and supporting mechanisms are arranged in the porcelain insulator sleeve, each insulation adjusting and supporting mechanism comprises an elastic sleeve and a spring fixed on the inner side wall of the porcelain insulator sleeve, and the elastic sleeve is spiral. The sealing gasket is arranged between the secondary insulator sleeve and the connecting air chamber, the overall air tightness is improved, meanwhile, the insulation adjusting supporting mechanism is arranged to fix the position of the wire penetrating through the porcelain insulator sleeve, the spiral elastic sleeve can better exert the effect of correcting the position of the wire, meanwhile, the contact area of the sleeve and the wire can be enlarged by the spiral elastic sleeve, and damage to the wire is reduced.
Preferably, only one spring is arranged on the same axial section of the elastic sleeve, the central angles clamped by every two adjacent springs along the axial direction of the elastic sleeve are equal, and the axial distance between every two adjacent springs along the axial direction of the elastic sleeve is also equal. The elastic sleeve is further supported by the arrangement of springs, which can be distributed as evenly as possible over the entire sleeve.
Preferably, the air chamber is connected to the inside of the air chamber, the air chamber is equipped with the ply-yarn drill, the ply-yarn drill includes three stationary blades and three movable blades, stationary blade and movable blade interval set up and enclose into the annular, the ply-yarn drill includes top and bottom, the top is the wire entry end, the distance of stationary blade top to the ply-yarn drill central axis is greater than the distance of stationary blade bottom to the display card central axis, the middle part of movable blade rotates through the pivot to be connected on two adjacent stationary blades, the upper portion of movable blade and the lower part of movable blade become the obtuse angle, receive the lower part of stationary blade extrusion deformation back promotion movable blade after the wire inserts from the entry end, make the upper portion of movable blade paste tight wire. After the wire is inserted, the upper end of the movable plate is gathered towards the center by extruding the movable plate to clamp the wire, and the whole wire clamp is in a round table shape, so that the wire is inserted more tightly, and the wire can be clamped rapidly.
Preferably, when no wire is inserted, the included angle between the upper part of the movable sheet and the section of the wire clamping shaft is equal to the included angle between the fixed sheet and the section of the wire clamping shaft, and the lower part of the movable sheet is parallel to the axis of the wire clamping shaft. The shape enclosed by the whole movable sheet and the fixed sheet has guiding performance when the wire is inserted into the upper part of the movable sheet, and the wire cannot be blocked between the two fixed sheets or the two movable sheets too early, so that the wire can be clamped after being inserted into the wire clip for a sufficient depth.
Compared with the prior art, the invention has the advantages that: the two groups of first outgoing line isolating switches and the two groups of second outgoing line isolating switches form an annular loop, the original six groups of connecting sleeve pipes are reduced to four groups of connecting sleeve pipes, the longitudinal size of the corresponding distribution device is reduced from original 28 meters to 17 meters, 39.3% of land is reduced, and the land is effectively saved.
Drawings
FIG. 1 is a diagram of two HGIS spacing diagrams in a back-to-back arrangement of the prior art;
FIG. 2 is a front view of an HGIS double-spacing annular busbar apparatus according to the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view of the GIL line of the invention;
FIG. 5 is a top view of the wire clip of the present invention without clamping a wire;
Fig. 6 is a top view of the present invention after the wire clip is tightened.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 2 and 3, an embodiment of an HGIS double-spacing annular bus device according to the present invention includes two groups of combined electrical apparatuses, each of the two groups of combined electrical apparatuses includes a circuit breaker CB, a first outgoing line isolating switch DS1, a second outgoing line isolating switch DS2, a first current transformer CT1, a second current transformer CT2, an outgoing line side sleeve BSG1 and a bus side sleeve BSG2, the first outgoing line isolating switch DS1, the second current transformer CT2, the circuit breaker CB and the first current transformer CT1 are electrically connected in series in sequence, and the first outgoing line isolating switch DS1, the circuit breaker CB, the first current transformer CT1 and the second current transformer CT2 which are electrically connected are sealed in an air chamber of an insulating gas, the outgoing line side sleeve BSG1 is electrically connected with the first current transformer CT1, the bus side sleeve BSG2 is electrically connected with the first outgoing line isolating switch DS1, and the first outgoing line isolating switch DS2 is also connected with the second outgoing line isolating switch DS2; the first outgoing line isolating switches DS1 of the two groups of combined electrical appliances are mutually connected through the GIL pipeline 1, and the second outgoing line isolating switches DS2 of the two groups of combined electrical appliances are mutually connected through the GIL pipeline 1.
The two groups of first outgoing line isolating switches DS1 and the two groups of second outgoing line isolating switches DS2 form an annular loop, the original six groups of wire connecting sleeves are reduced to four groups of wire connecting sleeves, the longitudinal size of the corresponding power distribution device is reduced from 28 meters to 17 meters, 39.3% of land is reduced, and the land is effectively saved.
As shown in fig. 4, the GIL pipeline 1 includes a porcelain insulator sleeve 11 and a connection air chamber 21, the end portion of the porcelain insulator sleeve 11 is fixed with the connection air chamber 21, a sealing gasket 31 is disposed between the connection air chamber 21 and the porcelain insulator sleeve 11, a plurality of groups of insulation adjusting and supporting mechanisms are disposed in the porcelain insulator sleeve 11, the insulation adjusting and supporting mechanisms include an elastic sleeve 111 and a spring 112 fixed on the inner side wall of the porcelain insulator sleeve, the elastic sleeve 111 is spiral, the position of a wire of the porcelain insulator sleeve 11 is reinforced through the elastic sleeve 111, the insulation is reinforced through the porcelain insulator sleeve 11, and the connection air chamber 21 plays a role in communication and fixation.
In order to strengthen the fixation of the wires in the porcelain insulator sleeve 11, only one spring 112 is arranged on the same axial section of the elastic sleeve 111, the central angles corresponding to every two adjacent springs 112 along the axial direction of the elastic sleeve are equal, the axial distance between every two adjacent springs 112 along the axial direction of the elastic sleeve is equal, the two adjacent springs 112 are two springs 112 which are adjacent in vertical height, for example, four springs 112 are arranged from top to bottom, the central angle between the horizontal plane projection of the first spring and the second spring is 90 degrees, the central angle between the horizontal plane projection of the second spring and the third spring is 90 degrees, and the central angle between the horizontal plane projection of the third spring and the fourth spring is 90 degrees, so the arrangement can enable the springs 112 to further strengthen the support of the elastic sleeve 111.
As shown in fig. 4, fig. 5, and fig. 6, in order to realize quick connection of wires, a line card 211 is disposed in the connection air chamber 21, two sets of line cards are disposed in each connection air chamber, the two sets of line cards are disposed opposite to each other, and are electrically connected with each other, the line card 211 includes three fixing pieces 2111 and three movable pieces 2112, the fixing pieces 2111 and the movable pieces 2112 are disposed at intervals and enclose into a ring shape, the line card 211 includes a top end and a bottom end, the top end is a wire inlet end, a distance from the top end of the fixing piece 2111 to a central axis of the line card 211 is greater than a distance from the bottom end of the fixing piece 2111 to a central axis of the display card, a middle portion of the movable piece 2112 is rotatably connected to two adjacent fixing pieces 2111 through a rotating shaft, an obtuse angle is formed between an upper portion of the movable piece 2112 and a lower portion of the movable piece 2112, after the wire is inserted from the inlet end, the upper portion of the movable piece 2112 is pushed to be tightly attached to the wire, and when the wire is not inserted, an included angle between the upper portion of the movable piece 2112 and the section of the line card 211 and the central axis of the fixing piece 2111 is equal to the central axis of the movable piece 211. After the wire feeding card 211 is inserted, the wire is deformed by pressing to push the lower portion of the movable plate 2112, so that the movable plate 2112 is rotated, and the upper portion of the movable plate 2112 is moved toward the center to clamp the inserted wire.
According to the HGIS power distribution device, two bus lead sleeves are arranged on each phase and are respectively led to a primary pipeline bus and a secondary pipeline bus through flexible wires. The four groups of isolation and grounding switches are separated according to intervals and are annularly arranged on two sides of the bus lead sleeve through the GIL pipeline 1. Six air sleeves are reduced by using the scheme of double intervals, the longitudinal dimension of the distribution device is reduced from 28 meters to 17 meters, and the longitudinal dimension is reduced by 39.3 percent.
The above embodiments are merely illustrative embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art within the scope of the present invention are included in the scope of the present invention.
Claims (2)
- HGIS double-interval annular busbar device, its characterized in that: the combined electrical appliances comprise two groups of combined electrical appliances, each group of combined electrical appliances comprises a circuit breaker, a first outgoing line isolating switch, a second outgoing line isolating switch, a first current transformer, a second current transformer, an outgoing line side sleeve and a bus side sleeve, wherein the first outgoing line isolating switch, the second current transformer, the circuit breaker and the first current transformer are sequentially and electrically connected in series, sulfur hexafluoride gas is used as an insulating medium, the electrically connected first outgoing line isolating switch, the circuit breaker, the first current transformer and the second current transformer are sealed in an insulating gas chamber, the outgoing line side sleeve is electrically connected with the first current transformer, the bus side sleeve is electrically connected with the first outgoing line isolating switch, and the first outgoing line isolating switch is also connected with the second outgoing line isolating switch; the first outgoing line isolating switches of the two groups of combined electrical appliances are connected with each other, and the second outgoing line isolating switches of the two groups of combined electrical appliances are also connected with each other;the two groups of first outgoing line isolating switches and the two groups of second outgoing line isolating switches are connected through GIL pipelines;The GIL pipeline comprises a porcelain insulator sleeve and a connecting air chamber, wherein the connecting air chamber is fixed at the end part of the porcelain insulator sleeve, a sealing gasket is arranged between the connecting air chamber and the porcelain insulator sleeve, a plurality of groups of insulation adjusting and supporting mechanisms are arranged in the porcelain insulator sleeve, each insulation adjusting and supporting mechanism comprises an elastic sleeve and a spring fixed on the outer side wall, and the elastic sleeve is spiral;Only one spring is arranged on the same axial section of the elastic sleeve, the central angles clamped by every two adjacent springs along the axial direction of the elastic sleeve are equal, and the axial distance between every two adjacent springs along the axial direction of the elastic sleeve is also equal;Be equipped with the ply-yarn drill in the connection air chamber, the ply-yarn drill includes three stationary blades and three movable blades, stationary blade and movable blade interval set up and enclose into the annular, the ply-yarn drill includes top and bottom, the top is the wire entry end, the distance of stationary blade top to the ply-yarn drill central axis is greater than the distance of stationary blade bottom to the display card central axis, the middle part of movable blade is rotated through the pivot and is connected on two adjacent stationary blades, the upper portion of movable blade forms the obtuse angle with the lower part of movable blade, receives the lower part of stationary blade extrusion deformation back promotion movable blade after the wire inserts from the entry end, makes the upper portion of movable blade paste the wire.
- 2. The HGIS double spacing annular bus assembly as recited in claim 1, wherein: when the lead is not inserted, the included angle between the upper part of the movable sheet and the section of the line clamping shaft is equal to the included angle between the fixed sheet and the section of the line clamping shaft, and the lower part of the movable sheet is parallel to the axis of the line clamping shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697982.2A CN108879343B (en) | 2018-06-29 | 2018-06-29 | HGIS double-interval annular bus device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810697982.2A CN108879343B (en) | 2018-06-29 | 2018-06-29 | HGIS double-interval annular bus device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108879343A CN108879343A (en) | 2018-11-23 |
| CN108879343B true CN108879343B (en) | 2024-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810697982.2A Active CN108879343B (en) | 2018-06-29 | 2018-06-29 | HGIS double-interval annular bus device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108879343B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662132A (en) * | 2009-06-26 | 2010-03-03 | 福建省电力勘测设计院 | 110kV/220kV voltage level composite apparatus and application thereof |
| CN207282908U (en) * | 2017-07-31 | 2018-04-27 | 中国电力技术装备有限公司郑州电力设计院 | The 500kV power distribution equipments arranged using half c-type |
| CN208316036U (en) * | 2018-06-29 | 2019-01-01 | 浙江华云电力工程设计咨询有限公司 | HGIS double space ring busbars device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101861688B (en) * | 2007-11-29 | 2013-03-13 | 三菱电机株式会社 | Gas insulated switchgear |
-
2018
- 2018-06-29 CN CN201810697982.2A patent/CN108879343B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662132A (en) * | 2009-06-26 | 2010-03-03 | 福建省电力勘测设计院 | 110kV/220kV voltage level composite apparatus and application thereof |
| CN207282908U (en) * | 2017-07-31 | 2018-04-27 | 中国电力技术装备有限公司郑州电力设计院 | The 500kV power distribution equipments arranged using half c-type |
| CN208316036U (en) * | 2018-06-29 | 2019-01-01 | 浙江华云电力工程设计咨询有限公司 | HGIS double space ring busbars device |
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| Publication number | Publication date |
|---|---|
| CN108879343A (en) | 2018-11-23 |
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