CN215990148U

CN215990148U - Phase conductor phase change structure containing square base and post insulator

Info

Publication number: CN215990148U
Application number: CN202122122454.4U
Authority: CN
Inventors: 尹志强; 杨振宇; 黄学明; 赵远强; 王小波; 杨卓; 徐华森; 赵淳裕; 黄日福; 张争; 傅文煊
Original assignee: China Gezhouba Group Power Co ltd
Current assignee: China Gezhouba Group Power Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-08
Anticipated expiration: 2031-09-03

Abstract

A phase conductor phase change structure comprising a square base and a pillar insulator comprises a tension tower and phase change devices, wherein a first wire inlet and outlet cable and a second wire inlet and outlet cable are arranged on the left side and the right side of the tension tower; according to the utility model, through a brand-new commutation structure, the purpose of commutation of the power transmission line is achieved, meanwhile, the use amount of steel and foundation concrete can be reduced, the floor area of the commutation iron tower and the difficulty of field construction are reduced, and the construction cost of the power transmission and distribution line project is greatly reduced.

Description

Phase conductor phase change structure containing square base and post insulator

Technical Field

The utility model belongs to the technical field of transmission and distribution line equipment, and particularly relates to a phase conductor phase-changing structure comprising a square base and a post insulator.

Background

When the transmission line is used for long-distance transmission, conductor phase change is usually required to overcome the problem of unbalanced three-phase impedance. In the prior art, a transposition tower is usually arranged in the middle of line transmission to realize phase conversion of spatial positions of transmission lines, and for example, in patent publications "CN 205713392U" and "CN 212478730U", a double-loop self-type power transposition tower is recorded.

In the above-mentioned transposition tower, the tower body of the transposition tower needs to adopt a specially designed double-loop self-type transposition tower, and the volume of the specially designed double-loop self-type transposition tower is usually much larger than that of a double-loop strain tower with the same voltage level, which not only wastes steel and foundation concrete, but also increases the floor area and construction difficulty of the tower body.

Disclosure of Invention

In view of the technical problems in the background art, the phase conductor commutation structure comprising the square base and the post insulator provided by the utility model can achieve the purpose of commutation of the power transmission line, reduce the use amount of steel and basic concrete, reduce the floor area of the commutation iron tower and the difficulty of field construction, and greatly reduce the construction cost of the power transmission and distribution project.

In order to solve the technical problems, the utility model adopts the following technical scheme to realize:

the utility model provides a contain mouth style of calligraphy base and post insulator's looks wire commutation structure, includes strain insulator tower and commutation device, and the left and right sides of strain insulator tower is equipped with business turn over line cable and No. two business turn over line cables, is equipped with the horizontal pole under to from last on the strain insulator tower, and both ends are equipped with the commutation device about the horizontal pole, and business turn over line cable and No. two business turn over line cables carry out the cable space position commutation on the commutation device.

In the preferred scheme, the phase changing device comprises a square base, a line hanging plate, a mounting plate and an insulator string; the top face of the square-shaped base is connected with a wire hanging plate through a fixing bolt, the upper end face of the wire hanging plate is welded with the end portion of the upper cross rod of the strain tower, the side face and the bottom face of the square-shaped base are connected with an installation plate through connecting bolts, and an insulator string is vertically arranged on the installation plate.

In a preferred scheme, the first wire inlet and outlet cable comprises a first A-phase wire inlet, a first B-phase wire inlet, a first C-phase wire outlet, a first A-phase wire outlet and a first B-phase wire outlet; the first phase A incoming line is connected with the first phase A outgoing line on the phase change device; the first phase B incoming line is connected with the first phase B outgoing line on the phase change device; the first C-phase incoming line is connected with the first C-phase outgoing line on the phase changing device.

In a preferred scheme, the second wire inlet and outlet cable comprises a second A-phase wire inlet, a second B-phase wire inlet, a second C-phase wire outlet, a second A-phase wire outlet and a second B-phase wire outlet; the second phase A incoming line is connected with the second phase A outgoing line on the phase change device; the second phase B incoming line is connected with the second phase B outgoing line on the phase change device; and the second C-phase incoming line is connected with the second C-phase outgoing line on the phase change device.

This patent can reach following beneficial effect:

1. the structure can directly shift the original double-loop strain tower through the self structure without specially designing a special double-loop self-type shift tower when the double-loop power transmission line needs to shift, so that the construction steps are reduced, and the construction difficulty is reduced;

2. the structure can reduce the manufacturing of a specific double-loop self transposition tower, further reduce the consumption of steel and basic concrete required by a phase-changing electric tower, reduce the floor area of an iron tower and reduce the construction cost of transmission and distribution line engineering.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic overall wiring diagram of the present invention;

FIG. 2 is a schematic structural diagram of a phase-change device according to the present invention;

FIG. 3 is a schematic diagram of a conductive line commutation according to the present invention;

FIG. 4 is a phase change side view of an access line I of the present invention;

FIG. 5 is a phase-change side view of the second access line of the present invention.

In the figure: a first phase A incoming line 101, a first phase B incoming line 102, a first phase C incoming line 103, a first phase C outgoing line 201, a first phase A outgoing line 202, a first phase B outgoing line 203, a second phase A incoming line 301, a second phase B incoming line 302, a second phase C incoming line 303, a second phase B outgoing line 401, a second phase C outgoing line 402, a second phase A outgoing line 403, a strain tower 5, a square-shaped base 6, a wiring board 7, a fixing bolt 8, a mounting plate 9, a connecting bolt 10 and an insulator string 11;

the tension insulator comprises a tension insulator No. 1, a tension insulator No. 2, a tension insulator No. 3, a tension insulator No. 4, a tension insulator No. 5, a tension insulator No. 6, a tension insulator No. 7, a tension insulator No. 8, a tension insulator No. 9, a tension insulator No. 10, a tension insulator No. 11, a tension insulator No. 12, a tension insulator No. 13, a tension insulator No. 1113, a tension insulator No. 14, a tension insulator No. 15, a tension insulator No. 16, a tension insulator No. 17, a tension insulator No. 18, a tension insulator No. 19, a tension insulator No. 1119, a tension insulator No. 20, a tension insulator No. 21, a tension insulator No. 22 and 1122.

Detailed Description

As shown in fig. 1 and 2, a contain looks wire commutation structure of mouth style of calligraphy base and pillar insulator, this structure is applicable to two return circuit transmission strain tower, the structure is including strain tower 5 and commutation device, strain tower 5's the left and right sides is equipped with business turn over line cable and No. two business turn over line cables and constitutes two return circuit designs, strain tower 5 is last to be equipped with the horizontal pole down from last, both ends are equipped with the commutation device about the horizontal pole, business turn over line cable and No. two business turn over line cables carry out cable space position commutation on the commutation device.

As shown in fig. 4 and 5, the power transmission line facing the first incoming and outgoing line faces the side of the tension tower 5, the left side of the tension tower 5 is respectively the a1, B1 and C1 phase terminals of the first incoming cable from top to bottom, the right side of the tension tower 5 is respectively the C1, a1 and B1 phase terminals of the first outgoing cable from top to bottom, and when the cables are subjected to phase change, the a1, B1 and C1 phase terminals of the first incoming cable are respectively communicated with the a1, B1 and C1 phase terminals of the first outgoing cable;

the power transmission line facing the second incoming and outgoing line faces the side face of the tension tower 5, the left side of the tension tower 5 is respectively provided with a connection terminal A2, a connection terminal B2 and a connection terminal C2 of the second incoming line cable from top to bottom, the right side of the tension tower 5 is respectively provided with a connection terminal B2, a connection terminal C2 and a connection terminal A2 of the second outgoing line cable from top to bottom, and when the cables are subjected to phase change, the connection terminals A2, B2 and C2 of the second incoming line cable are respectively communicated with the connection terminals A2, B2 and C2 of the second outgoing line cable.

The preferable scheme is as shown in figure 2, the phase changing device comprises a square base 6, a line hanging plate 7, a mounting plate 9 and an insulator string 11; the top surface of the square-shaped base 6 is connected with a wire hanging plate 7 through a fixing bolt 8, the upper end surface of the wire hanging plate 7 is welded with the end part of the upper cross rod of the tension tower 5, and the square-shaped base 6 can be detached and installed through the structure, so that the maintenance and the replacement are convenient;

the side surface and the bottom surface of the square base 6 are connected with a mounting plate 9 through connecting bolts 10, and an insulator string 11 is vertically arranged on the mounting plate 9; can also conveniently change and maintain it according to the quantity of the selective installation insulator chain 11 in the line changing position of cable through this structure, fixing bolt 8 and connecting bolt 10 all adopt high strength bolt to guarantee the fastness of commutation device connection.

As shown in fig. 3 and 4, the first incoming and outgoing cable includes a first phase a incoming line 101, a first phase B incoming line 102, a first phase C incoming line 103, a first phase C outgoing line 201, a first phase a outgoing line 202, and a first phase B outgoing line 203;

the first phase A incoming line 101 sequentially passes through a No. 1 strain insulator 111, a No. 4 strain insulator 114 and a No. 6 strain insulator 116 on the phase changing device and then is connected with a first phase A outgoing line 202;

the first phase B incoming line 102 is connected with the first phase B outgoing line 203 after sequentially passing through a No. 5 strain insulator 115, a No. 8 strain insulator 118 and a No. 10 strain insulator 1110 on the commutation device;

the first C-phase incoming line 103 sequentially passes through a No. 9 strain insulator 119, a No. 11 strain insulator 1111, a No. 7 strain insulator 117, a No. 3 strain insulator 113 and a No. 2 strain insulator 112 on the phase-changing device and then is connected with the first C-phase outgoing line 201.

As shown in fig. 3 and 5, a preferred embodiment of the second in-out cable includes a second a-phase incoming line 301, a second B-phase incoming line 302, a second C-phase incoming line 303, a second C-phase outgoing line 402, a second a-phase outgoing line 403, and a second B-phase outgoing line 401;

the second phase a incoming line 301 passes through a No. 12 strain insulator 1112, a No. 4 strain insulator 1114, a No. 18 strain insulator 1118, a No. 22 strain insulator 1122 and a No. 21 strain insulator 1121 in sequence on the commutation device and then is connected with the second phase a outgoing line 403;

the second phase B incoming line 302 sequentially passes through a 16 # tension insulator 1116, a 15 # tension insulator 1115 and a 13 # tension insulator 1113 on the commutation device and then is connected with the second phase B outgoing line 401;

the second C-phase incoming line 303 passes through a No. 20 strain insulator 1120, a No. 19 strain insulator 1119 and a No. 17 strain insulator 1117 on the commutation device in sequence and then is connected with the second C-phase outgoing line 402.

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and equivalents including technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the utility model.

Claims

1. The utility model provides a contain mouth style of calligraphy base and post insulator's looks wire commutation structure, includes strain insulator tower (5) and commutation device, its characterized in that: the left and right sides of strain insulator tower (5) is equipped with business turn over line cable and No. two business turn over line cables, is equipped with the horizontal pole from last to down on strain insulator tower (5), and both ends are equipped with the commutation device about the horizontal pole, and a business turn over line cable carries out the cable space position commutation with No. two business turn over line cables on the commutation device.

2. The phase-change conductor structure comprising a square base and a post insulator according to claim 1, wherein: the phase changing device comprises a square base (6), a line hanging plate (7), a mounting plate (9) and an insulator string (11); the top surface of the square-shaped base (6) is connected with a line hanging plate (7) through a fixing bolt (8), the upper end surface of the line hanging plate (7) is welded with the end part of an upper cross rod of the strain tower (5), the side surface and the bottom surface of the square-shaped base (6) are connected with a mounting plate (9) through a connecting bolt (10), and an insulator string (11) is vertically arranged on the mounting plate (9).

3. The phase-change conductor structure comprising a square base and a post insulator according to claim 1, wherein: the first wire inlet and outlet cable comprises a first A-phase wire inlet (101), a first B-phase wire inlet (102), a first C-phase wire inlet (103), a first C-phase wire outlet (201), a first A-phase wire outlet (202) and a first B-phase wire outlet (203); the first phase A incoming line (101) is connected with the first phase A outgoing line (202) on the phase changing device; the first phase B incoming line (102) is connected with the first phase B outgoing line (203) on the phase changing device; the first C-phase incoming line (103) is connected with the first C-phase outgoing line (201) on the phase changing device.

4. The phase-change conductor structure comprising a square base and a post insulator according to claim 1, wherein: the second wire inlet and outlet cable comprises a second A-phase wire inlet (301), a second B-phase wire inlet (302), a second C-phase wire inlet (303), a second C-phase wire outlet (402), a second A-phase wire outlet (403) and a second B-phase wire outlet (401); the second phase A incoming line (301) is connected with the second phase A outgoing line (403) on the phase changing device; a second phase B incoming line (302) is connected with a second phase B outgoing line (401) on the phase changing device; the second C phase incoming line (303) is connected with the second C phase outgoing line (402) on the phase changing device.