CN203932697U - Indoor substation isosceles triangle outlet structure - Google Patents
Indoor substation isosceles triangle outlet structure Download PDFInfo
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- CN203932697U CN203932697U CN201420366718.8U CN201420366718U CN203932697U CN 203932697 U CN203932697 U CN 203932697U CN 201420366718 U CN201420366718 U CN 201420366718U CN 203932697 U CN203932697 U CN 203932697U
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Abstract
The utility model indoor substation isosceles triangle outlet structure, relate to power transformation engineering field, the technical problem solving is: comprise that loop, transformer station that main transformer equipment, at least two groups are comprised of the A phase line be arrangeding in parallel, B phase line, C phase line build, main transformer equipment is arranged in transformer station's building; A phase line described in every group in loop, B phase line, C phase line arrange in a triangle, and B phase line goes out line position higher than A phase line and C phase line; The architectural B phase line outlet point that is provided with of this transformer station, the distance between the outlet point of adjacent two B phase lines is d5, main transformer equipment installation dimension < d5 transversely.Beneficial effect is: isosceles triangle is arranged the structure that three-phase outlet method can utilize transformer station to build, thereby reduces its lateral clearance by optimizing the position of triple line, thereby reduces the whole floor space of transformer station, saves soil and reduction transformer station cost.
Description
Technical field
The utility model relates to power transformation engineering, the definite indoor substation isosceles triangle outlet structure that says.
Background technology
Power engineering is divided into generating, transmission of electricity and power transformation three bulks, and the utility model belongs to the booster stations part of power transformation engineering field and generation engineering.
Transformer station in power transformation engineering, conventionally according to construction style and electric equipment arrangement, be divided into indoor, half indoor, outdoor three kinds.
In indoor substation: main transformer and and the power distribution equipment (both are hereinafter collectively referred to as power distribution equipment) of each electric pressure be all arranged on indoor, wherein main transformer adopts indoor Natural Oil Circulation Power transformer, and main transformer is connected with power distribution equipment with flexible conductor or oil gas conduit.Power distribution equipment generally adopts GIS, it is the gas-insulating and fully-enclosed combined electrical apparatus pattern of SF6, the gas-insulated performance of SF6 makes GIS have the advantages that volume is little, technical performance is good, is especially suitable for indoor substation, and can reduce construction area and control building height.Outlet method can adopt cable outlet, also can adopt overhead outlet.
Existing A, B, the in-line outlet as shown in Figure 6 conventionally of C triple line outlet structure, that is: A, B, the outlet side by side of C triple line horizontal arrangement, ground wire 4 is arranged on the top in A, B, C triple line outside.Between triple line and between different circuit, need reserved certain distance, with 1000 meters of height above sea level and following, 220 KV indoor GIS are example, according to power industry standard: when power distribution equipment is used flexible conductor, live part is to the minimum electrical distance between grounded part and out of phase live part, should carry out verification according to following three kinds of conditions, and adopt wherein greatest measure:
(1) external overvoltage and windage yaw;
(2) internal overvoltage and windage yaw;
(3) maximum working voltage, short circuit are waved and windage yaw.
According to above requirement, alternate minimum range conventional in Practical Project is got 3.75 meters, and relatively minimum range is got 2.25 meters, and between different circuit, minimum range is 4.5 meters.This kind of outlet method Hui Shi transformer station lateral dimension is very large, finally can cause transformer station's architectural volume to increase, and floor space is large, thereby improves the cost of transformer station.
Utility model content
Technical problem to be solved in the utility model is: a kind of indoor substation isosceles triangle outlet structure that can effectively reduce indoor substation floor space is provided.
The utility model solves the technical scheme that its technical problem adopts: indoor substation isosceles triangle outlet structure, comprise the loop that main transformer equipment, transformer station's building, at least two groups are comprised of the A phase line be arrangeding in parallel, B phase line and C phase line, main transformer equipment is arranged in transformer station's building; A phase line described in every group in loop, B phase line, C phase line arrange in a triangle, and B phase line goes out line position higher than A phase line and C phase line; The architectural B phase line outlet point that is provided with of this transformer station, the distance between the outlet point of adjacent two B phase lines is d5, main transformer equipment installation dimension < d5 transversely.
Further: comprise the upper outlet layer and the lower outlet layer that are arranged in parallel, A phase line, C phase line horizontal arrangement are at lower outlet layer, and B phase line is arranged in outlet layer; The distance of upper and lower outlet interlayer is d4, the minimum permissible value of d4 > phase spacing.
Further: also comprise ground wire, transformer station's building comprises structural upright, and the hanging point of described B phase line outlet point and ground wire is all located in structural upright.
The beneficial effects of the utility model are: isosceles triangle is arranged the structure that A, B, C three-phase outlet method can utilize indoor substation to build, thereby reduce its lateral clearance by optimizing the position of triple line, thereby reduce the whole floor space of transformer station, save the outlet herringbone column of transformer station and crossbeam, save soil and reduce transformer station's cost.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of the utility model A, B, the outlet of C triple line;
Fig. 3 is the schematic diagram of upper outlet layer;
Fig. 4 is the schematic diagram of lower outlet layer;
Fig. 5 is the schematic diagram of ground plane;
Fig. 6 is the schematic diagram of prior art;
Reference numeral: 1-A phase line, 2-B phase line, 3-C phase line, 4-ground wire, 5-column.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1 and Figure 2, indoor substation isosceles triangle outlet structure of the present utility model, comprises the loop that main transformer equipment, transformer station's building, at least two groups are comprised of the A phase line 1 be arrangeding in parallel, B phase line 2 and C phase line 3, and main transformer equipment is arranged in transformer station's building; A phase line 1 described in every group in loop, B phase line 2, C phase line 3 arrange in a triangle, and B phase line 2 goes out line position higher than A phase line 1 and C phase line 3; The architectural B phase line 2 outlet points that are provided with of this transformer station, the distance between the outlet point of adjacent two B phase lines 2 is d5, main transformer equipment installation dimension < d5 transversely.
A, B, C are the triple line of transformer station's transmission line circuit, there is no obvious difference in the technical program between three, and in literary composition, being distinguished is for convenience of description, and one group of A, B, C triple line can form a loop.It is relative with in-line layout in prior art that isosceles triangle is arranged, that is: three intersection points of every group of A, B, C triple line and outlet plane can be linked to be a triangle.Described A, B, C triple line are drawn by outgoing line interval power distribution equipment, and outlet method has cable outlet and overhead outlet.Transformer station's building effect is for the equipment such as main transformer equipment provide installing space, and for B phase line 2 provides outlet point, described outlet point refers to: phase line involves the position of transformer station, can be realized by modes such as hanging point are set.
The horizontal installation dimension of described power distribution equipment refers to: take Fig. 2 drawing as benchmark, the full-size of power distribution equipment on left and right directions.In order to facilitate A, B, the outlet of C triple line, and guarantee necessary phase spacing and loop spacing, normally in one line when power distribution equipment is arranged on same layer, a corresponding loop of outgoing line interval equipment.This programme is transformer station's lateral dimension=d5 * feeder number of minimum in theory, and transformer station's building need to provide installation site for power distribution equipment, so d5 > power distribution equipment installation dimension transversely.Phase spacing refers to the minimum range between phase line, loop spacing refers to the distance in different circuit and immediate two phase lines, aforementioned mentioning: with 1000 meters of height above sea level and following, 220 KV indoor GIS are example, according to power industry standard: when power distribution equipment is used flexible conductor, live part, to the minimum electrical distance between grounded part and out of phase live part, should carry out verification according to following three kinds of conditions, and adopt wherein greatest measure:
(1) external overvoltage and windage yaw;
(2) internal overvoltage and windage yaw;
(3) maximum working voltage, short circuit are waved and windage yaw.
According to above requirement, alternate minimum range conventional in Practical Project is got 3.75 meters, and relatively minimum range is got 2.25 meters, and between different circuit, minimum range is 4.5 meters.The horizontal installation dimension < d5 of power distribution equipment reserves necessary installation site for power distribution equipment.
Compare with in-line outlet scheme in prior art: with 1000 meters of height above sea level and following, 220 KV indoor transformer stations, and the transformer station that is provided with two loops is example: as shown in Figure 6, in in-line outlet scheme, A, B, C triple line outgoing line part need 4 spaced apart d2 and 1 loop spacing d1 of horizontal arrangement, 3.75 meters of the minimum permissible values of d2 >=phase spacing, 4.5 meters of the permissible values of minimum range between d1 >=different circuit, the minimum value on this part of theory is 3.75 * 4+4.5=19.5 rice.As shown in Figure 2: in the utility model scheme, A, B, C triple line outgoing line part need two d5 of horizontal arrangement, and the minimum value on this part of theory is: 4.5 meters=12 meters < prior art schemes of permissible value of minimum range between 3.75 meters * 2+ of the minimum permissible value different circuit of phase spacing.
The beneficial effects of the utility model are: isosceles triangle is arranged the structure that A, B, C three-phase outlet method can utilize indoor substation to build, thereby reduce its lateral clearance by optimizing the position of triple line, thereby reduce the whole floor space of transformer station, save soil and reduce transformer station's cost.
Under the prerequisite of arranging in a triangle in A, B, C triple line, outlet layer is set two schemes: 1, be provided with two parallel outlet layers, B phase line is arranged in outlet layer, and A, C phase line are arranged in lower outlet layer; 2, be provided with three outlet layers, A, B, C triple line are arranged on different outlet layers.The present embodiment is selected above-mentioned the 1st kind of scheme, comprises the upper outlet layer and the lower outlet layer that are arranged in parallel that is:, and A phase line 1, C phase line 3 horizontal arrangement are at lower outlet layer, and B phase line 2 is arranged in outlet layer; The distance of upper and lower outlet interlayer is d4, the minimum permissible value of d4 > phase spacing.
As shown in Figure 1 and Figure 2, d3 be in A, C phase line from B phase line 2 one close to and B phase line 2 distance in the horizontal direction, in figure, be expressed as the horizontal range of C phase line 3 and B phase line 2, the phase spacing of B phase line and C phase line equals
this phase spacing need to be greater than the minimum permissible value of phase spacing.When the minimum permissible value of d4 > phase spacing, can not consider the value of d3, now the outlet of B phase line 2 point has more options leeway more, design difficulty is less, transformer station is possible smallest lateral dimension less.
At the architectural hanging point that is typically provided with phase line outlet point and ground wire of transformer station, in the present embodiment, the hanging point of B phase line outlet point and ground wire is located on the column 5 of transformer station's building, that is: also comprise ground wire 4, transformer station's building comprises column 5, and the hanging point of described B phase line 2 outlet points and ground wire 4 is all located on column 5.
Ground wire 4 is lightning arresters of protection phase line.In prior art in in-line outlet scheme, take Fig. 6 as benchmark, the position of ground wire 4 is arranged on the both sides of phase line, in the lateral dimension of this scheme transformer station, at least comprise two distance d6 relatively, with 1000 meters of height above sea level and following, 220 KV indoor transformer stations, and the transformer station that is provided with two loops is example: 2.25 meters of the minimum permissible values of d6 >=phase ground distance.The present embodiment optimization utilizes transformer station's column 6 that the hanging point of ground wire 4 and the outlet point of B phase line 2 are set, and the lateral dimension of transformer station has further been optimized in the top of ground wire 4 in B phase line 2, can save this part transformer station lateral dimension that d6 takies.
Claims (3)
1. indoor substation isosceles triangle outlet structure, comprises the loop that main transformer equipment, transformer station's building, at least two groups are comprised of the A phase line (1) be arrangeding in parallel, B phase line (2) and C phase line (3), and main transformer equipment is arranged in transformer station's building; It is characterized in that: the A phase line (1) described in every group in loop, B phase line (2), C phase line (3) arrange in a triangle, B phase line (2) goes out line position higher than A phase line (1) and C phase line (3); Architectural B phase line (2) the outlet point that is provided with of this transformer station, the distance between the outlet point of adjacent two B phase lines (2) is d5, main transformer equipment installation dimension < d5 transversely.
2. indoor substation isosceles triangle outlet structure as claimed in claim 1, it is characterized in that: comprise the upper outlet layer and the lower outlet layer that are arranged in parallel, A phase line (1), C phase line (3) horizontal arrangement are at lower outlet layer, and B phase line (2) is arranged in outlet layer; The distance of upper and lower outlet interlayer is d4, the minimum permissible value of d4 > phase spacing.
3. indoor substation isosceles triangle outlet structure as claimed in claim 1 or 2, it is characterized in that: also comprise ground wire (4), transformer station's building comprises column (5), and the hanging point of described B phase line (2) outlet point and ground wire (4) is all located on column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366718.8U CN203932697U (en) | 2014-07-03 | 2014-07-03 | Indoor substation isosceles triangle outlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366718.8U CN203932697U (en) | 2014-07-03 | 2014-07-03 | Indoor substation isosceles triangle outlet structure |
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| CN203932697U true CN203932697U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420366718.8U Expired - Lifetime CN203932697U (en) | 2014-07-03 | 2014-07-03 | Indoor substation isosceles triangle outlet structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356307A (en) * | 2015-10-23 | 2016-02-24 | 国家电网公司 | Overhead outlet system for GIS room |
| CN105610081A (en) * | 2016-03-16 | 2016-05-25 | 中国能源建设集团安徽省电力设计院有限公司 | Triangular GIS outgoing line layout structure for voltage grade of 500kV and below |
-
2014
- 2014-07-03 CN CN201420366718.8U patent/CN203932697U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356307A (en) * | 2015-10-23 | 2016-02-24 | 国家电网公司 | Overhead outlet system for GIS room |
| CN105610081A (en) * | 2016-03-16 | 2016-05-25 | 中国能源建设集团安徽省电力设计院有限公司 | Triangular GIS outgoing line layout structure for voltage grade of 500kV and below |
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Granted publication date: 20141105 |
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| CX01 | Expiry of patent term |