CN218919590U

CN218919590U - 220kV outdoor GIS double-circuit outlet distribution structure

Info

Publication number: CN218919590U
Application number: CN202223452154.3U
Authority: CN
Inventors: 蔡荣根; 姚海荣; 黄建武; 周清伟; 林达威
Original assignee: Fujian Yongfu Power Engineering Co Ltd
Current assignee: Fujian Yongfu Power Engineering Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-25
Anticipated expiration: 2032-12-22

Abstract

The utility model relates to the technical field of outdoor GIS power distribution outgoing lines, and particularly discloses a 220kV outdoor GIS double-circuit outgoing line power distribution structure, which comprises two outgoing line frameworks, wherein the two outgoing line frameworks are arranged left and right, two groups of three-phase sleeves are arranged between the two outgoing line frameworks, the two groups of three-phase sleeves are arranged front and back, a first loop is arranged on the three-phase sleeve at the front end, and a second loop is arranged on the three-phase sleeve at the rear end; the utility model has simple structure and convenient operation, can optimize the power distribution device, effectively reduce the interval width, reduce the occupied area of the transformer substation, improve the economic index and solve the problem of shortage of line outlet channel resources.

Description

220kV outdoor GIS double-circuit outlet distribution structure

Technical Field

The utility model relates to the technical field of outdoor GIS power distribution outgoing lines, in particular to a 220kV outdoor GIS double-circuit outgoing line power distribution structure.

Background

With the economic development, more and more self-built substations are built for enterprises, and the construction of the substations is limited by the planned total flat shape, the occupied area and the line outgoing channels.

The existing 220kV GIS outdoor distribution device is arranged in a straight line shape at intervals on a plane, three-phase bushings of line outgoing lines are parallel to a main bus, 2 frames of the 220kV outgoing lines are arranged at intervals of 1 frame, and the frames are provided with a cross beam, so that the interval width is large, the occupied area of a transformer substation is increased, and the economic index is reduced.

Disclosure of Invention

The utility model aims to provide a 220kV outdoor GIS double-circuit outlet distribution structure, so that a three-phase line adopts double-layer outlet wires at the front side and the rear side.

In order to achieve the above purpose, the utility model adopts the following scheme: the utility model provides an outdoor GIS of 220kV goes out line distribution structure with two returns, including two frameworks of being qualified for the next round of competitions, two frameworks of being qualified for the next round of competitions control the setting, are provided with two sets of three-phase sleeve pipes between two frameworks of being qualified for the next round of competitions, and two sets of three-phase sleeve pipes set up around, go out first return wire on the three-phase sleeve pipe of front end, go out the second return wire on the three-phase sleeve pipe of rear end.

Further, each group of three-phase bushings is provided with three bushings, the interval between every two bushings is 3m, and the interval between the left bushing and the right bushing and the corresponding left bushing and the corresponding right bushing are 3.5m.

Further, a first cross beam is arranged in the middle of the two outgoing line frameworks, a first insulator string is hung at the front end of the first cross beam, and the first return line passes through the first insulator string to be outgoing line;

the upper ends of the two outgoing line frameworks are provided with a second cross beam, the rear end of the second cross beam is provided with a long cantilever beam, the rear end of the long cantilever beam is suspended with a second insulator string, the front end of the long cantilever beam is suspended with a third insulator string, and the second return line sequentially passes through the second insulator string and the third insulator string for outgoing line;

the tops of the two outgoing line frameworks are both provided with a ground wire.

Further, the first beam has a height of 14m from the ground, and the second beam has a height of 21m from the ground.

Further, the ground wire is 24.5m from the ground.

Further, the interval between every two first insulator strings is 3.5m, and the interval between the left and right first insulator strings and the corresponding left and right appearance frameworks is 3m; the interval between every two second insulator strings is 3.5m, and the interval between the left and right second insulator strings and the corresponding left and right appearance frameworks is 3m; the interval between every two third insulator strings is 3.5m, and the interval between the left and right first insulator strings and the corresponding left and right appearance frameworks is 3m.

The utility model has the beneficial effects that:

the utility model provides a 220kV outdoor GIS double-circuit outlet distribution structure, which can reduce the interval width and the occupied area of a transformer substation by two groups of three-phase bushings arranged front and back; the first beam is used for first loop outgoing line; the second beam is used for second loop wire outlet; and the long cantilever beam is used for hanging the second insulator chain and the third insulator chain.

The utility model has simple structure and convenient operation, can optimize the power distribution device, effectively reduce the interval width, reduce the occupied area of the transformer substation, improve the economic index and solve the problem of shortage of line outlet channel resources.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1, the utility model provides a 220kV outdoor GIS double-circuit outlet distribution structure, which comprises two outlet frames 1, wherein the two outlet frames 1 are used for erecting a first circuit 3 and a second circuit 4, the two outlet frames 1 are arranged left and right, two groups of three-phase bushings 2 are arranged between the two outlet frames 1, and the two groups of three-phase bushings 2 are arranged front and back, so that the space width can be reduced, the occupied area of a transformer substation is reduced, the first circuit 3 is arranged on the three-phase bushing 2 at the front end, and the second circuit 4 is arranged on the three-phase bushing 2 at the rear end.

Each group of three-phase bushings 2 is provided with three bushings, the interval between every two bushings is 3m, the 220kV voltage class electrification distance requirement can be met, the interval between the left bushing and the right bushing and the corresponding left and right wire outlet frameworks 1 is 3.5m, and the 220kV voltage class electrification distance requirement can be met.

The middle parts of the two wire outlet frameworks 1 are provided with first cross beams 5 for the wire outlet of a first wire return 3, the front ends of the first cross beams 5 are suspended with first insulator strings 6, the first wire return 3 passes through the first insulator strings 6 and is connected with the wire outlet of the first cross beams 5 in parallel;

the upper ends of the two wire outlet frameworks 1 are provided with a second cross beam 7 for the second wire outlet of the second wire return 4, and the rear end of the second cross beam 7 is provided with a long cantilever beam 8 for hanging a second insulator string 9 and a third insulator string 10, so that the second wire return 4 is better wire outlet; the second insulator string 9 is hung at the rear end of the long cantilever beam 8, the second insulator string 9 can be insulated from the second cross beam 7, the third insulator string 10 is hung at the front end of the long cantilever beam 8, the third insulator string 10 can be insulated from the long cantilever beam 8, and the second loop 4 sequentially passes through the second insulator string 9 and the third insulator string 10 and is led out;

the tops of the two outgoing line frameworks 1 are provided with the ground wire 11, and the two outgoing lines can be prevented from being struck directly by the ground wire 11, so that the two outgoing lines can be protected.

The height between the first cross beam 5 and the ground is 14m, and the height of the 14m is 220kV line-to-ground height requirement value; the height of the second cross beam 7 from the ground is 21m, and the height of the second cross beam is 7m or more than the height difference between the outgoing lines of the second loop 4 and the outgoing lines of the first loop 3.

The ground wire 11 has a height of 24.5m from the ground, so that two outgoing lines can be better protected, and the two outgoing lines can be better prevented from being struck.

The interval between every two first insulator strings 6 is 3.5m, the interval between the left and right first insulator strings 6 and the corresponding left and right appearance frameworks is 3m, and the requirement of 220kV voltage class electrified distance is met; the interval between every two second insulator strings 9 is 3.5m, the interval between the left and right second insulator strings 9 and the corresponding left and right appearance frameworks is 3m, and the requirement of 220kV voltage class electrified distance is met; the interval between every two third insulator strings 10 is 3.5m, the interval between the left and right first insulator strings 6 and the corresponding left and right appearance frameworks is 3m, and the requirement of 220kV voltage class electrified distance is met.

The three-phase sleeve and the insulator string in the utility model are all in the prior art, and a person skilled in the art can clearly understand that the three-phase sleeve and the insulator string are not described in detail herein, and the utility model protects the structural characteristics of the 220kV outdoor GIS double-loop outlet distribution structure.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. 220kV outdoor GIS double-circuit outlet distribution structure is characterized in that: the three-phase power supply comprises two wire outlet frameworks, wherein the two wire outlet frameworks are arranged left and right, two groups of three-phase sleeves are arranged between the two wire outlet frameworks, the two groups of three-phase sleeves are arranged front and back, a first loop is arranged on the three-phase sleeve at the front end, and a second loop is arranged on the three-phase sleeve at the rear end.

2. The 220kV outdoor GIS double-circuit outlet distribution structure of claim 1, wherein: each group of three-phase sleeve pipes is provided with three sleeve pipes, the interval between every two sleeve pipes is 3m, and the interval between each two sleeve pipes on the left and right is 3.5m with the corresponding two wire outlet frameworks on the left and right.

3. The 220kV outdoor GIS double-circuit outlet distribution structure of claim 1, wherein: a first cross beam is arranged in the middle of the two outgoing line frameworks, a first insulator string is hung at the front end of the first cross beam, and a first return line passes through the first insulator string and is outgoing line;

4. A 220kV outdoor GIS double-circuit outlet distribution structure according to claim 3, wherein: the first beam has a height of 14m from the ground, and the second beam has a height of 21m from the ground.

5. A 220kV outdoor GIS double-circuit outlet distribution structure according to claim 3, wherein: the ground wire has a height of 24.5m from the ground.

6. A 220kV outdoor GIS double-circuit outlet distribution structure according to claim 3, wherein: the interval between every two first insulator strings is 3.5m, and the interval between the left and right first insulator strings and the corresponding left and right appearance frameworks is 3m; the interval between every two second insulator strings is 3.5m, and the interval between the left and right second insulator strings and the corresponding left and right appearance frameworks is 3m; the interval between every two third insulator strings is 3.5m, and the interval between the left and right first insulator strings and the corresponding left and right appearance frameworks is 3m.