CN215528200U - 220KV open-type reverse outgoing line arrangement structure - Google Patents
220KV open-type reverse outgoing line arrangement structure Download PDFInfo
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- CN215528200U CN215528200U CN202121264666.XU CN202121264666U CN215528200U CN 215528200 U CN215528200 U CN 215528200U CN 202121264666 U CN202121264666 U CN 202121264666U CN 215528200 U CN215528200 U CN 215528200U
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Abstract
The utility model discloses a 220KV open type arrangement reverse outgoing line arrangement structure which comprises 14 outgoing line loops arranged side by side in a single row, wherein a bus segment is arranged in the middle of each 14 outgoing line loop, 7 outgoing line loops are respectively arranged on the left side and the right side, the outermost side of the 7 outgoing line on the right side is a first outgoing line loop, and the outermost side of the 7 outgoing line on the left side is a second outgoing line loop; the device also comprises 2 newly-added outlet loops, wherein the 2 newly-added outlet loops are respectively arranged at the tail parts of the first outlet loop and the second outlet loop in parallel, the newly-added outlet loop is led out through the top of the first outlet loop or the second outlet loop, and the newly-added outlet loop is opposite to the outlet equipment arrangement positions of the first outlet loop and the second outlet loop in direction; the first outgoing line loop and the second outgoing line loop which are arranged on the left and right outermost sides are electrically connected with the bus, the whole width is not increased, the total width of the 220kV power distribution device is still 217 m, the 16 outgoing lines are actually arranged, the width is the same as that of the 14 outgoing lines, and the floor area is reduced.
Description
Technical Field
The utility model relates to the field of transformer substation wiring, in particular to a 220KV open type arrangement reverse outlet line arrangement structure.
Background
Because land resources in China are in shortage, the occupied area of the transformer substation is reduced as much as possible on the premise that the outgoing line loop number meets the requirements of system planning during the design of the transformer substation. In the open-type transformer substation, when the 220kV wiring adopts double-bus wiring or double-bus sectional wiring and the circuit breakers are arranged in double rows, if the number of outgoing loops is large, buses are prolonged on two sides, the occupied area of the transformer substation is greatly increased, and the investment is increased. Even if the land occupation property is not satisfactory, the scheme is not established. As shown in fig. 1, for the conventional 220KV double-bus section connection and double-row arrangement of circuit breakers, the number of outgoing lines is 14, the width of each 220KV outgoing line interval is 13 meters, the total width of the 220KV distribution device is 14 × 13+15 (bus section interval) +2 × (3.5+6.5) (the maintenance space is 217 meters), and if the system requires 16 outgoing lines (2 loops are added). The conventional way of increasing the number of outgoing lines and loops is as follows: as shown in fig. 2 and 4, an outlet interval is added on each of the left and right sides of the bus, and the total width of the 220kV distribution device is 16 × 13+15 (bus segment interval) +2 × (3.5+6.5) (service and maintenance space is 243 meters). Therefore, a 220KV open-type arrangement reverse line arrangement structure with a small floor area is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a 220KV open type arrangement reverse outgoing line arrangement structure, wherein outgoing line equipment is arranged in parallel to main transformer incoming line equipment according to a main transformer incoming line equipment arrangement mode, an upper cross line is added for electric connection of outgoing lines, the first outgoing line loop and the second outgoing line loop are arranged on the left side and the right side and are electrically connected with a bus, the whole width is not increased, the total width of a 220KV power distribution device is still 217 meters, 16 outgoing lines are actually arranged, the width is the same as that of 14 outgoing lines, and the floor area is reduced.
The embodiment of the utility model is realized by the following steps:
a220 KV open type arrangement reverse outgoing line arrangement structure comprises 14 outgoing line loops which are arranged side by side in a single row, wherein a bus segment is arranged in the middle of each 14 outgoing line loop, 7 outgoing line loops are arranged on the left side and the right side respectively, the outermost side of the 7 outgoing line on the right side is a first outgoing line loop, and the outermost side of the 7 outgoing line on the left side is a second outgoing line loop; the device is characterized by further comprising 2 newly-added outlet loops, wherein the 2 newly-added outlet loops are arranged at the tail parts of the first outlet loop and the second outlet loop in parallel respectively, the newly-added outlet loop is led out through the top of the first outlet loop or the second outlet loop, and the arrangement positions of outlet equipment of the newly-added outlet loop are opposite to those of the first outlet loop and the second outlet loop. According to the arrangement mode of main transformer incoming line equipment, outgoing line equipment is arranged in parallel to the main transformer incoming line equipment, the upper cross line is added for electric connection of outgoing lines, the first outgoing line loop and the second outgoing line loop which are arranged on the left side and the right side of the outermost side are electrically connected with a bus, the whole width is not increased, the total width of a 220kV power distribution device is still 217 meters, 16 outgoing lines are actually arranged, the width is the same as that of 14 outgoing lines, and the occupied area is reduced. The distribution device is arranged in a reverse outgoing line mode, and therefore occupied land is saved on the basis of meeting the requirement of a multi-loop outgoing line loop of the system.
Preferably, the newly added outgoing line loop comprises a first three-column type isolating switch, a single-column type isolating switch, a circuit breaker, a current transformer, a second three-column type isolating switch, a lightning arrester and a voltage transformer which are arranged in the direction away from the first outgoing line loop or the second outgoing line loop.
Preferably, the lightning protection device further comprises a lightning conductor arranged at the top of the newly added outgoing line loop, and the lightning conductor is used for protecting the newly added outgoing line loop. The added upper span wire uses the lightning conductor as the direct lightning protection.
Preferably, the number of the lightning conductors includes two, the heights of the two lightning conductors are higher than the newly-added outgoing line loop, and the widths of the two lightning conductors are larger than the width of the newly-added outgoing line loop.
Preferably, the first three-column type isolating switch and the first outlet loop or the second outlet loop are connected to a bus in common.
Preferably, the first outlet loop and the second outlet loop have the same length.
Preferably, each outlet loop is 13 metres wide and the intermediate busbar section is 15 metres wide.
Due to the adoption of the technical scheme, the utility model has the beneficial effects that: the 220KV open type arrangement reverse outgoing line arrangement structure comprises 14 outgoing line loops which are arranged side by side in a single row, wherein a bus segment is arranged in the middle of each 14 outgoing line loop, 7 outgoing line loops are arranged on the left side and the right side respectively, the outermost side of the right 7 outgoing line loop is a first outgoing line loop, and the outermost side of the left 7 outgoing line loop is a second outgoing line loop; the device is characterized by further comprising 2 newly-added outlet loops, wherein the 2 newly-added outlet loops are arranged at the tail parts of the first outlet loop and the second outlet loop in parallel respectively, the newly-added outlet loop is led out through the top of the first outlet loop or the second outlet loop, and the outlet directions of the newly-added outlet loop and the first outlet loop and the second outlet loop are opposite. According to the arrangement mode of main transformer incoming line equipment, outgoing line equipment is arranged in parallel to the main transformer incoming line equipment, the upper cross line is added for electric connection of outgoing lines, the first outgoing line loop and the second outgoing line loop which are arranged on the left side and the right side of the outermost side are electrically connected with a bus, the whole width is not increased, the total width of a 220kV power distribution device is still 217 meters, 16 outgoing lines are actually arranged, the width is the same as that of 14 outgoing lines, and the occupied area is reduced. The distribution device is arranged in a reverse outgoing line mode, and therefore occupied land is saved on the basis of meeting the requirement of a multi-loop outgoing line loop of the system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a prior art 14-wire layout configuration;
FIG. 2 is a diagram of a prior art 16-wire layout configuration;
FIG. 3 is a 16-turn wiring structure of the present application;
FIG. 4 is a cross-sectional view taken along line 1-1 of FIG. 2;
FIG. 5 is a cross-sectional view taken along line 1-1 of FIG. 3;
fig. 6 is a partial structural view of fig. 3.
Description of specific element symbols: 1. a first outlet loop; 2. and adding an outgoing line loop.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1: referring to fig. 3, 5 and 6, the 220KV open-type reverse outgoing line arrangement structure of the present embodiment includes 14 outgoing line loops arranged side by side in a single row, a bus segment is disposed in the middle of the 14 outgoing line loop, 7 outgoing line loops are respectively disposed on the left and right sides, the outermost side of the right 7 outgoing line is a first outgoing line loop 1, and the outermost side of the left 7 outgoing line is a second outgoing line loop; the device also comprises 2 newly-added outlet loops 2, wherein the 2 newly-added outlet loops 2 are respectively arranged at the tail parts of the first outlet loop 1 and the second outlet loop in parallel, the newly-added outlet loop 2 is led out through the top of the first outlet loop 1 or the second outlet loop, and the newly-added outlet loop 2 is opposite to the outlet directions of the first outlet loop 1 and the second outlet loop. According to the arrangement mode of main transformer incoming line equipment, outgoing line equipment is arranged in parallel to the main transformer incoming line equipment, the upper cross line is added for electric connection of outgoing lines, the first outgoing line loop 1 and the second outgoing line loop which are arranged on the left side and the right side are electrically connected with a bus, the whole width is not increased, the total width of a 220kV power distribution device is still 217 meters, 16 outgoing lines are actually arranged, the width is the same as that of 14 outgoing lines, and the occupied area is reduced. The distribution device is arranged in a reverse outgoing line mode, and therefore occupied land is saved on the basis of meeting the requirement of a multi-loop outgoing line loop of the system.
Example 2: the newly-added outlet loop 2 of this embodiment includes first three-column type isolator, single-column type isolator, circuit breaker, current transformer, second three-column type isolator, arrester and voltage transformer that set up along keeping away from first outlet loop 1 or the direction of the second outlet loop. The lightning protection device further comprises a lightning conductor arranged at the top of the newly added outgoing line loop 2, and the lightning conductor is used for protecting the newly added outgoing line loop. The added upper span wire uses the lightning conductor as the direct lightning protection. The quantity of the lightning conductor of this embodiment includes for two, and the height of two lightning conductors all is higher than newly-increased return circuit 2 of being qualified for the next round of competitions, and the width of two lightning conductors is greater than the width of newly-increased return circuit 2 of being qualified for the next round of competitions. The first three-pole isolation switch and the first outgoing line loop 1 or the second outgoing line loop of the present embodiment are commonly connected to the bus. The first outlet loop 1 and the second outlet loop of the present embodiment have the same length. Each outlet loop of this embodiment has a width of 13 meters and the intermediate busbar section has a width of 15 meters. This embodiment is still including newly-increased steel framework, and newly-increased steel framework is used for the overlap joint to increase line return circuit and lightning conductor for third three column type isolator connects the generating line.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The 220KV open type arrangement reverse outgoing line arrangement structure is characterized by comprising 14 outgoing line loops which are arranged side by side in a single row, wherein a bus segment is arranged in the middle of each 14 outgoing line loop, 7 outgoing line loops are respectively arranged on the left side and the right side of each 14 outgoing line loop, the outermost side of the 7 outgoing line on the right side is a first outgoing line loop, and the outermost side of the 7 outgoing line on the left side is a second outgoing line loop; the device is characterized by further comprising 2 newly-added outlet loops, wherein the 2 newly-added outlet loops are arranged at the tail parts of the first outlet loop and the second outlet loop in parallel respectively, the newly-added outlet loop is led out through the top of the first outlet loop or the second outlet loop, and the arrangement positions of outlet equipment of the newly-added outlet loop are opposite to those of the first outlet loop and the second outlet loop.
2. The 220KV open-type arrangement reverse outlet arrangement structure of claim 1, wherein the newly added outlet loop comprises a first three-column type disconnecting switch, a single-column type disconnecting switch, a circuit breaker, a current transformer, a second three-column type disconnecting switch, a lightning arrester and a voltage transformer, which are arranged along a direction away from the first outlet loop or the second outlet loop.
3. The 220KV open-type arrangement reverse outgoing line arrangement structure of claim 2, further comprising a lightning conductor arranged at the top of the newly added outgoing line loop, wherein the lightning conductor is used for protecting the newly added outgoing line loop.
4. The 220KV open-type reverse outgoing line arrangement structure of claim 3, wherein the number of the lightning conductors comprises two lightning conductors, the heights of the two lightning conductors are higher than those of the newly added outgoing line loop, and the widths of the two lightning conductors are larger than those of the newly added outgoing line loop.
5. The 220KV open-type arrangement reverse outlet line arrangement structure of claim 2, wherein the first three-column type disconnecting switch and the first outlet line loop or the second outlet line loop are connected to a bus in common.
6. The 220KV open layout reverse outlet arrangement structure of claim 1, wherein the first outlet loop and the second outlet loop have the same length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121264666.XU CN215528200U (en) | 2021-06-07 | 2021-06-07 | 220KV open-type reverse outgoing line arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121264666.XU CN215528200U (en) | 2021-06-07 | 2021-06-07 | 220KV open-type reverse outgoing line arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215528200U true CN215528200U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121264666.XU Active CN215528200U (en) | 2021-06-07 | 2021-06-07 | 220KV open-type reverse outgoing line arrangement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215528200U (en) |
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2021
- 2021-06-07 CN CN202121264666.XU patent/CN215528200U/en active Active
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