CN216355887U - Three-phase vertical overhead outgoing line framework structure of transformer substation - Google Patents
Three-phase vertical overhead outgoing line framework structure of transformer substation Download PDFInfo
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- CN216355887U CN216355887U CN202122586509.7U CN202122586509U CN216355887U CN 216355887 U CN216355887 U CN 216355887U CN 202122586509 U CN202122586509 U CN 202122586509U CN 216355887 U CN216355887 U CN 216355887U
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- insulator string
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Abstract
The utility model provides a three-phase vertical overhead outgoing line framework structure of a transformer substation, which comprises a plurality of supporting frameworks and GIS sleeves, wherein a first line strain insulator string is arranged at the left end of the supporting framework on the uppermost layer, a second line strain insulator string and a pillar insulator are respectively arranged at the left end and the right end of the supporting framework on the middle layer and the lower layer, a three-phase outgoing line is led out from the GIS sleeves, the first phase outgoing line is led out after passing through the pillar insulator of the supporting framework on the middle layer and the first line strain insulator string on the uppermost layer, the second phase outgoing line is led out to the second line strain insulator string on the middle layer after passing through the pillar insulator of the supporting framework on the lower layer, and the third phase outgoing line is led out through the second line strain insulator string on the lower layer; the utility model has simple structure and convenient operation, and can effectively reduce the interval width, reduce the occupied area of a transformer substation and reduce the bus length of GIS equipment.
Description
Technical Field
The utility model relates to the technical field of outgoing line frameworks of transformer substations, in particular to a three-phase vertical overhead outgoing line framework structure of a transformer substation.
Background
The existing transformer substation overhead line outgoing structure adopts a double-airship type and wind sail type framework to realize a three-phase lead vertical arrangement mode, and two points need to be considered when the outgoing structure determines the spacing width and the height size of an outgoing sleeve:
1) wire phase spacing and jumper or downlead to ground distance. The distance between the conducting wires and the ground are considered according to the minimum electrical distance which can meet the requirement of insulation matching between the conducting wires and the ground when the conducting wire sag (jumper wire or down lead) in a span generates swing under the action of wind power and short circuit electric power;
2) within the determined minimum electrical distance, the electrical equipment and the wire are required to be separated from the adjacent and spaced parts without blocking the live part, such as the electrical equipment, the wire and the like, and the maintenance distance of power failure at different times is required to be met.
In order to meet the requirements, each overhead line needs to be arranged with a large interval width, so that the occupied area of a transformer substation is increased, and the construction cost and the waste of land resources are caused.
The technical problems that the construction cost and the waste of land resources are caused by increasing the occupied area of a transformer substation due to the fact that large interval width needs to be set for the overhead line of the existing transformer substation overhead line outgoing structure are solved, and an effective solution is not provided at present.
Disclosure of Invention
In view of this, the utility model aims to provide a three-phase vertical overhead outgoing line framework structure of a transformer substation, which can effectively reduce the interval width, reduce the occupied area of the transformer substation and reduce the length of a bus of a GIS device.
The utility model is realized by adopting the following method: the utility model provides a vertical built on stilts framework structure of being qualified for next round of competitions of transformer substation three-phase, includes a plurality of support frameworks and GIS sleeve pipe, and the left end is provided with first circuit strain insulator string on the support framework of superiors, and both ends are provided with second circuit strain insulator string and post insulator respectively about the support framework of middle level and lower floor, draw forth the three-phase on the GIS sleeve pipe and be qualified for the next round of competitions, and first looks is qualified for the next round of competitions behind the post insulator that the framework was supported to the middle level and the first circuit strain insulator string of superiors, and the second is qualified for the next round of competitions and is drawn forth to middle level second circuit strain insulator string behind the post insulator of the support framework of lower floor to be qualified for the next round of competitions, and the third is qualified for the next round of competitions through the second circuit strain insulator string of lower floor.
Further, the supporting framework comprises two A-shaped columns, an upper layer cross beam, a middle layer cross beam and a lower layer cross beam are sequentially erected between every two A-shaped columns from top to bottom, the lower layer beam is sleeved on the A-shaped column, the A-shaped column is sleeved with a first supporting seat and a second supporting seat, the second supporting seat is arranged between the lower layer cross beam and the first supporting seat, the upper layer cross beam is arranged between the first supporting seats at the left end and the right end, the middle layer cross beam is erected between the second supporting seats at the left end and the right end, the first line strain insulator string is arranged at the left end of the upper layer cross beam, the lower surface of the upper-layer cross beam is provided with a suspension insulator string, the front left ends of the middle-layer cross beam and the lower-layer cross beam are provided with a second line strain insulator string, and the back left ends of the middle-layer cross beam and the lower-layer cross beam are provided with post insulators.
Furthermore, the A-shaped column adopts welded steel pipes, and the framework beam is a lattice steel beam with a regular triangle section.
Furthermore, the left end and the right end of the upper-layer cross beam, the middle-layer cross beam and the lower-layer cross beam are respectively provided with a mounting seat, and the first line strain insulator string, the second line strain insulator string and the post insulator are fixed through the mounting seats.
The lightning arrester is parallel to the side edge of the GIS sleeve, and the lightning arrester T is connected to a three-phase outgoing line led out by the GIS sleeve.
The utility model has the beneficial effects that: according to the utility model, the supporting framework is added into the device, so that the spacing width can be effectively reduced, the occupied area of a transformer substation is reduced, the length of a GIS bus is reduced, and the economic index is improved; meanwhile, the vertical outgoing line is more convenient to be butted with a line terminal tower, and the arrangement is clearer; the framework increases the amount of steel used, but the overall investment is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a front view of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present invention is implemented by the following method: the utility model provides a vertical built on stilts framework structure of being qualified for next round of competitions of transformer substation three-phase, includes a plurality of support frameworks 1 and GIS sleeve pipe 2, and the support framework 1 of superiors goes up the left end and is provided with first circuit strain insulator string 3, and support framework 1 of middle level and lower floor controls both ends and is provided with second circuit strain insulator string 4 and post insulator 5 respectively, the three-phase is qualified for the next round of competitions of drawing forth on the GIS sleeve pipe 2, and the first looks is qualified for the next round of competitions behind the post insulator of middle level support framework and 3 strings of first circuit strain insulator string of superiors, and the second looks is qualified for the next round of competitions to the second circuit strain insulator string 4 of middle level after the post insulator 5 of lower floor support framework, and the third phase is qualified for the next round of competitions through the second circuit strain insulator string 4 of lower floor.
Referring to fig. 1 to 3, in an embodiment of the present invention, the supporting frame 1 includes two a-type columns 11, an upper cross beam 12, a middle cross beam 13 and a lower cross beam 14 are erected between every two a-type columns 11 from top to bottom, the lower cross beam 14 is sleeved on the a-type columns 11, the a-type columns 11 are sleeved with a first supporting seat 15 and a second supporting seat 16, the second supporting seat 16 is disposed between the lower cross beam 14 and the first supporting seat 15, the upper cross beam 12 is erected between the first supporting seats 15 at the left and right ends, the middle cross beam 13 is erected between the second supporting seats 16 at the left and right ends, the first line strain insulator string 3 is disposed at the left end of the upper cross beam 12, the suspension insulator string 10 is disposed at the lower surface of the upper cross beam 12, and the second line insulation strain insulator string 4 is disposed at the left ends of the front faces of the middle cross beam 13 and the lower cross beam 14, and the left ends of the back surfaces of the middle-layer beam 13 and the lower-layer beam 14 are provided with post insulators 5. The A phase outgoing line is arranged on the upper layer beam 12, and is led out after being strung by a support insulator 5 arranged on the middle layer beam 13 and a first line strain insulator string 3 under the upper layer beam 12 through a GIS sleeve 2; the B phase outgoing line is arranged on the middle layer beam 13 and is led out by the GIS sleeve 2 after passing through the post insulator 5 arranged on the lower layer beam 14; the C-phase outgoing line is arranged on the lower-layer beam 14 and is directly led out by the GIS sleeve 2.
Referring to fig. 1 to 3, in an embodiment of the present invention, the a-shaped pillar 11 is a welded steel pipe, and the frame beam is a lattice steel beam with an equilateral triangle cross section.
As shown in fig. 1 to fig. 3, in an embodiment of the present invention, the left and right ends of the upper beam 12, the middle beam 13, and the lower beam 14 are respectively provided with an installation seat 17, and the first line strain insulator string 3, the second line strain insulator string 4, and the post insulator 5 are fixed by the installation seats 17. The first line strain insulator string 3, the second line strain insulator string 4 and the post insulator 5 can be fixedly mounted on the upper-layer cross beam 12, the middle-layer cross beam 13 and the lower-layer cross beam 14 under the action of the mounting base 17.
As shown in fig. 3, in an embodiment of the present invention, the lighting arrester further includes a lighting arrester 6, the lighting arrester 6 is disposed parallel to the side edge of the GIS bushing 2, and the lighting arrester 6T is connected to a three-phase outgoing line led out from the GIS bushing 2. So that the longitudinal dimension (distance to the fence) of the power distribution device is reduced from 5.5m to 4.0 m. And the flexible conductors are respectively connected with the GIS sleeve wiring boards at two ends and the connection points on the strain insulator strings of the lines, and the lightning arrester T is connected on the flexible conductors.
The lightning arrester, the strain insulator string, the post insulator string and the GIS sleeve are all in the prior art, and can be clearly understood by those skilled in the art, and are not described in detail herein.
In a word, in combination with the characteristics of gas insulated metal enclosed switchgear (GIS), two lines are provided with 1 truss outgoing line at intervals, each truss is provided with a vertical three-layer beam, and the three phases of the outgoing lines are erected (vertical to the ground). The utility model optimizes the distribution device, effectively reduces the interval width, reduces the occupied area of the transformer substation, saves the length of the GIS bus and has very obvious technical and economic effects. The vertical outlet is more convenient to be butted with a line terminal tower.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a vertical built on stilts outlet frame structure of transformer substation three-phase which characterized in that: including a plurality of support frameworks and GIS sleeve pipes, the left end is provided with first circuit strain insulator string on the support framework of superiors, and both ends are provided with second circuit strain insulator string and pillar insulator respectively about the support framework of middle level and lower floor, draw forth the three-phase on the GIS sleeve pipe and be qualified for the next round of competitions, and first phase is qualified for the next round of competitions behind the pillar insulator of middle level support framework and the first circuit strain insulator string of superiors, and the second phase is qualified for the next round of competitions and is drawn forth to middle level second circuit strain insulator string and be qualified for the next round of competitions behind the pillar insulator of lower floor support framework, and the third phase is qualified for the next round of competitions through the second circuit strain insulator string of lower floor.
2. The substation three-phase vertical overhead outlet framework structure of claim 1, characterized in that: the utility model discloses a support framework, including support framework, support framework includes two A type posts, from last upper crossbeam, middle level crossbeam and the lower floor's crossbeam of having erect in proper order down between two liang of A type posts, the lower floor's crossbeam cover is established on the A type post, the cover is equipped with first supporting seat and second supporting seat on the A type post, the second supporting seat set up in lower floor's crossbeam with between the first supporting seat, the upper crossbeam erects between the first supporting seat at both ends about, the middle level crossbeam erects between the second supporting seat at both ends about, the left end of upper crossbeam is provided with first line strain insulator string, the lower surface of upper crossbeam is provided with the insulator string that dangles, middle level crossbeam and the positive left end of lower floor's crossbeam are provided with second line strain insulator string, the back left end of middle level crossbeam and lower floor's crossbeam is provided with the insulator pillar.
3. The substation three-phase vertical overhead outlet framework structure of claim 2, characterized in that: the A-shaped column adopts welded steel pipes, and the framework beam is a lattice steel beam with a regular triangle section.
4. The substation three-phase vertical overhead outlet framework structure of claim 2, characterized in that: the upper crossbeam, middle level crossbeam and lower floor's crossbeam all are provided with the mount pad at both ends about, first line strain insulator string, second line strain insulator string and post insulator all pass through the mount pad is fixed.
5. The substation three-phase vertical overhead outlet framework structure of claim 1, characterized in that: the lightning arrester is parallel to the side edge of the GIS sleeve, and the lightning arrester T is connected to a three-phase outgoing line led out by the GIS sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122586509.7U CN216355887U (en) | 2021-10-26 | 2021-10-26 | Three-phase vertical overhead outgoing line framework structure of transformer substation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122586509.7U CN216355887U (en) | 2021-10-26 | 2021-10-26 | Three-phase vertical overhead outgoing line framework structure of transformer substation |
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| Publication Number | Publication Date |
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| CN216355887U true CN216355887U (en) | 2022-04-19 |
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| CN202122586509.7U Active CN216355887U (en) | 2021-10-26 | 2021-10-26 | Three-phase vertical overhead outgoing line framework structure of transformer substation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115085127A (en) * | 2022-07-29 | 2022-09-20 | 福建永福电力设计股份有限公司 | Novel binding material for line post insulator and insulated wire |
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2021
- 2021-10-26 CN CN202122586509.7U patent/CN216355887U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115085127A (en) * | 2022-07-29 | 2022-09-20 | 福建永福电力设计股份有限公司 | Novel binding material for line post insulator and insulated wire |
| CN115085127B (en) * | 2022-07-29 | 2023-04-14 | 福建永福电力设计股份有限公司 | Binding material for line post insulator and insulated wire |
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