CN106088775A - A kind of 750kV is combined cross-arm transposition tower - Google Patents

A kind of 750kV is combined cross-arm transposition tower Download PDF

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Publication number
CN106088775A
CN106088775A CN201610677182.5A CN201610677182A CN106088775A CN 106088775 A CN106088775 A CN 106088775A CN 201610677182 A CN201610677182 A CN 201610677182A CN 106088775 A CN106088775 A CN 106088775A
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CN
China
Prior art keywords
arm
wire jumper
cross
phase line
wire
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Granted
Application number
CN201610677182.5A
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Chinese (zh)
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CN106088775B (en
Inventor
柏晓路
李健
黄欲成
张瑚
刘文勋
吕健双
吴高波
周魁
肖明杰
雷雨泽
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China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
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China Power Engineering Consultant Group Central Southern China Electric Power Design Institute Corp
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Priority to CN201610677182.5A priority Critical patent/CN106088775B/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/24Cross arms

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electric Cable Installation (AREA)

Abstract

The invention discloses a kind of 750kV and be combined cross-arm transposition tower; by compound cross-arm and hardware string, horizontal wire jumper is supported; make horizontal wire jumper can be parallel to wire cross-arm to arrange; the jumper string length that under being combined mutually outside realization inside cross-arm transposition cross-arm, hard wire jumper inner edge replaces mutually reduces 7m; corresponding shaft tower tower body overall height at least can reduce 7m; single base cost at least reduces by 29%; reduce column foot floor space; improve transposition tower to landform adaptability; and the structure of the present invention is not limited by orographic condition, applied widely.

Description

A kind of 750kV is combined cross-arm transposition tower
Technical field
The invention belongs to electric power line pole tower field, be specifically related to a kind of 750kV and be combined cross-arm transposition tower.
Background technology
At present, the transposition tower of China's 750kV transmission line of electricity commonly used band double-bus frame, i.e. use three base independent iron towers, Transposition is jointly completed by an anchor support and two bus-bar frames.As it is shown in figure 1, the 750kV transposition tower of band double-bus frame uses one Individual list returns anchor support and combines two bus-bar frames and complete transposition, from inner edge mutually inside phase, middle phase in hard wire jumper Outside the hard wire jumper in outside inside phase, the mutually sub-tower in outside under hard wire jumper inner edge realize three-phase transposition mutually.Former Having tower scheme to use band double-bus frame transposition tower, have three base steel towers, body cost is high, and column foot floor space is big, to landform Condition requires higher, limits its range.
Summary of the invention:
It is an object of the invention to provide a kind of 750kV and be combined cross-arm transposition tower, it is possible to realize the same of three-phase line transposition Time, reduce construction costs and also improve adaptability simultaneously, to overcome problem present in background technology.
To achieve these goals, the technical scheme is that
A kind of 750kV is combined cross-arm transposition tower, including being arranged on the earth wire support at shaft tower tower body top, is arranged on shaft tower tower Wire cross-arm in the middle part of body, three-phase line is arranged at transposition tower, and three-phase line includes inner edge phase line, middle phase line and outside phase Circuit,
Inner edge phase line side is arranged on rear side of wire cross-arm inner end, and middle phase line side is arranged on shaft tower tower body top Rear side, phase line side, outside is arranged on rear side of wire cross-arm outer end;It is inner that inner edge phase line two side is arranged on wire cross-arm On front side of portion, middle phase phase line two side is arranged on front side of shaft tower tower body top, and outside phase line two side is arranged on wire cross-arm outer end On front side of portion;
Phase line two side, outside by horizontal wire jumper connect inside under the front end of hard wire jumper, horizontal wire jumper is put down with wire cross-arm Row is arranged, and the middle part of horizontal wire jumper is connected by insulated compound cross-arm and is supported in shaft tower tower body.
One end of compound cross-arm connects shaft tower tower body, and the middle part of horizontal wire jumper is hung at the another of compound cross-arm by hardware string One end.
Being combined cross-arm including a pair, be combined cross-arm for a pair and be symmetricly set in shaft tower tower body, each compound cross-arm passes through one Hardware string connects horizontal wire jumper.
The inner end of earth wire support and outer end are connected to hard wire jumper on the upper hard wire jumper in inner side and outside, wire cross-arm Inner end connect have inner side under hard wire jumper;Wire jumper rear end hard with under inner side, inner edge phase line side is connected, middle phase line side Wire jumper rear end hard with on inner side is connected, and wire jumper rear end hard with on outside, phase line side, outside is connected;Inner edge phase line two side with On inner side, hard wire jumper front end connects, and wire jumper front end hard with on outside, middle phase line two side is connected.
Inner edge phase line side is arranged on rear side of wire cross-arm inner end by the first strain insulator string, middle phase line one Side is arranged on rear side of shaft tower tower body top by the second strain insulator string, and the 3rd strain insulator is passed through in phase line side, outside String is arranged on rear side of wire cross-arm outer end;Inner edge phase line two side is arranged in wire cross-arm by the 4th strain insulator string On front side of end, middle phase line two side is arranged on front side of shaft tower tower body top by the 5th strain insulator string, outside phase line two Side is arranged on front side of wire cross-arm outer end by the 6th strain insulator string.
The two ends of ground wire cross-arm have been respectively fixedly connected with inner side wire jumper support and outside wire jumper support, and on inner side, hard wire jumper leads to Cross the first wire jumper insulator chain hang be located at inner side wire jumper support on, on outside, hard wire jumper is hung by the second wire jumper insulator chain and is located at On the wire jumper support of outside, under inner side, hard wire jumper hangs the inner end being located at wire cross-arm by the 3rd wire jumper insulator chain.
It is preferred that two the first wire jumper insulator chains are symmetricly set in the two ends of inner side wire jumper support, and connect on inner side The both sides of hard wire jumper;Two the second wire jumper insulator chains are symmetricly set in the two ends of outside wire jumper support, and it is upper hard to connect outside The both sides of wire jumper;Two the 3rd wire jumper insulator chains are respectively symmetrically front side and the rear side being arranged at wire cross-arm inner end, and connect It is connected to the both sides of hard wire jumper under inner side.
The beneficial effects of the present invention is: by compound cross-arm and hardware string, horizontal wire jumper is supported so that level Wire jumper can be parallel to wire cross-arm arrange, it is achieved outside be combined mutually cross-arm transposition cross-arm inside under hard wire jumper The jumper string length that inner edge replaces mutually reduces 7m, and corresponding shaft tower tower body overall height at least can reduce 7m, and single base cost at least reduces 29%, reduce column foot floor space, raising 750kV transposition tower is to landform adaptability, and the structure of the present invention is not by orographic condition Limit, applied widely.
Accompanying drawing explanation
Fig. 1 is existing 750kv transmission line of electricity transposition tower,
Fig. 2 is the structural representation of the embodiment of the present invention.
In figure: 1-shaft tower tower body, 2-earth wire support, 3-wire cross-arm, 3.1-wire cross-arm inner end, 3.2-wire cross-arm Outer end, 4-inner edge phase line side, phase line two side outside 5-, phase line side in 6-, 7-inner edge phase line two side, outside 8- Phase line side, limit, phase line two side in 9-, the horizontal wire jumper of 10-, 11 are combined cross-arm, 12-hardware string, inside 13-under hard wire jumper, Upper hard wire jumper inside 14-, upper hard wire jumper outside 15-, wire jumper support inside 16-, wire jumper support outside 17-, 18-the first strain insulator is exhausted Edge substring, 19-the second strain insulator string, 20-the 3rd strain insulator string, 21-the 4th strain insulator string, 22-the 5th is resistance to Open insulator chain, 23-the 6th strain insulator string, 24 first wire jumper insulator chains, 25-the second wire jumper insulator chain, 26-the 3rd Wire jumper insulator chain.
Detailed description of the invention
The present invention is described further with embodiment below in conjunction with the accompanying drawings.
As in figure 2 it is shown, a kind of 750kV is combined cross-arm transposition tower, including being arranged on the earth wire support 2 at shaft tower tower body 1 top, Being arranged on the wire cross-arm 3 in the middle part of shaft tower tower body 1, three-phase line is arranged at transposition tower, three-phase line include inner edge phase line, in Phase line and outside phase line, inner edge phase line side 4 is arranged on rear side of wire cross-arm inner end 3.1, and middle phase line side 6 sets Putting on rear side of shaft tower tower body 1 top, phase line side, outside 8 is arranged on rear side of wire cross-arm outer end 3.2;Inner edge phase line two Side 7 is arranged on front side of wire cross-arm inner end 3.1, and middle phase line two side 9 is arranged on front side of shaft tower tower body 1 top, outside phase line Side, road two 5 is arranged on front side of wire cross-arm outer end 3.2;
Phase line two side 5, outside by horizontal wire jumper 10 connect inside under the front end of hard wire jumper 13, horizontal wire jumper 10 with lead Line cross-arm 3 be arranged in parallel, and the middle part of horizontal wire jumper 10 is connected by insulated compound cross-arm 11 and is supported in shaft tower tower body 1.
One end of compound cross-arm 11 connects shaft tower tower body 1, and the middle part of horizontal wire jumper 10 is hung at compound by hardware string 12 The other end of cross-arm 11.The present embodiment includes a pair being combined cross-arm 11, is combined cross-arm 11 for a pair and is symmetricly set in shaft tower tower body 1 Side and the edge in outside, each compound cross-arm connects horizontal wire jumper 10 by a hardware string 12 respectively.
The inner end of earth wire support 2 and outer end are connected to hard wire jumper 15 on the upper hard wire jumper 14 in inner side and outside, lead The inner end of line cross-arm 3 connects hard wire jumper 13 under inner side;Wire jumper 13 hard with under inner side rear end, inner edge phase line side 4 is connected, Wire jumper 14 hard with on inner side rear end, middle phase line side 6 is connected, and phase line side, outside 8 is with hard wire jumper 15 rear end on outside even Connect;Wire jumper 14 hard with on inner side front end, inner edge phase line two side 7 is connected, middle phase line two side 9 and hard wire jumper 15 front end on outside Connect.
Inner edge phase line side 4 is arranged on rear side of wire cross-arm inner end 3.1 by the first strain insulator string 18, middle phase Circuit side 6 is arranged on rear side of shaft tower tower body 1 top by the second strain insulator string 19, and phase line side, outside 8 is by the Three strain insulator strings 20 are arranged on rear side of wire cross-arm outer end 3.2;Inner edge phase line two side 7 is by the 4th strain insulator String 21 is arranged on front side of wire cross-arm inner end 3.1, and middle phase line two side 9 is arranged on shaft tower by the 5th strain insulator string 22 On front side of tower body 1 top, before outside phase line two side 5 is arranged on wire cross-arm outer end 3.2 by the 6th strain insulator string 23 Side.
The two ends of ground wire cross-arm have been respectively fixedly connected with inner side wire jumper support 16 and outside wire jumper support 17, and inner side is jumped firmly Line 14 is hung by the first wire jumper insulator chain 24 and is located on the wire jumper support 16 of inner side, and on outside, hard wire jumper 15 is exhausted by the second wire jumper Edge substring 25 hangs and is located on the wire jumper support 17 of outside, and under inner side, hard wire jumper 13 is hung by the 3rd wire jumper insulator chain 26 and is located at wire The inner end of cross-arm 3.
Two the first wire jumper insulator chains 24 are symmetricly set in the two ends of inner side wire jumper support 16, and connect the upper hard jumping in inner side The both sides of line 14;Two the second wire jumper insulator chains 25 are symmetricly set in the two ends of outside wire jumper support 17, and connect on outside The both sides of hard wire jumper 15;Two the 3rd wire jumper insulator chains 26 be respectively symmetrically be arranged at wire cross-arm inner end 3.1 front side and Rear side, and it is connected to the both sides of hard wire jumper 13 under inner side.
750kV described in the present embodiment is combined cross-arm 11 transposition tower and realizes transposition on same shaft tower, by increasing tower body Transposition compound wire jumper cross-arm, it is achieved outside be combined mutually cross-arm transposition cross-arm 11 inside under hard wire jumper 13 inner edge phase Transposition, outside inner edge middle phase, middle phase mutually, the transposition form of phase, reaches the purpose that existing conventional scheme is consistent.Due to 750kV is combined cross-arm transposition tower only with single base shaft tower, and after using horizontal wire jumper 10 to combine compound cross-arm 11, only need to configure jumping Line hardware string so that jumper string length reduces 7m, corresponding shaft tower overall height can reduce 7m, and single base cost reduces by 29%, reduces column foot Floor space, raising transposition tower is to landform adaptability, and is not limited by orographic condition.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted, And all these modifications and variations all should belong to the protection domain of claims of the present invention.This specification is retouched in detail That states partly belongs to prior art known to professional and technical personnel in the field.

Claims (2)

1. 750kV is combined a cross-arm transposition tower, including being arranged on the earth wire support (2) at shaft tower tower body (1) top, is arranged on institute Stating the wire cross-arm (3) at shaft tower tower body (1) middle part, three-phase line is arranged at described transposition tower, and described three-phase line includes inner edge Phase line, middle phase line and outside phase line, it is characterised in that:
Described inner edge phase line side (4) is arranged on described wire cross-arm inner end (3.1) rear side, and middle phase line side (6) sets Put on rear side of described shaft tower tower body (1) top, after phase line side, outside (8) is arranged on described wire cross-arm outer end (3.2) Side;Inner edge phase line two side (7) is arranged on described wire cross-arm inner end (3.1) front side, and middle phase phase line two side (9) is arranged on On front side of described shaft tower tower body (1) top, outside phase line two side (5) is arranged on described wire cross-arm outer end (3.2) front side;
Phase line two side, described outside (5) connects the front end of hard wire jumper (13) under described inner side by horizontal wire jumper (10), described Horizontal wire jumper (10) be arranged in parallel with described wire cross-arm (3), and insulated compound cross-arm is passed through at the middle part of described horizontal wire jumper (10) (11) connect and be supported in described shaft tower tower body (1);
One end of described compound cross-arm (11) connects described shaft tower tower body (1), and gold utensil is passed through at the middle part of described horizontal wire jumper (10) String (12) is hung at the other end of described compound cross-arm (11);
Including cross-arm (11) compound described in a pair, the pair of compound cross-arm (11) is symmetricly set in described shaft tower tower body (1), often Individual described compound cross-arm (11) connects horizontal wire jumper (10) by a described hardware string (12);
The inner end of described earth wire support (2) and outer end are connected to hard wire jumper on the upper hard wire jumper (14) in inner side and outside (15), the inner end of described wire cross-arm (3) connects hard wire jumper (13) under inner side;Inner edge phase line side (4) is interior with described Under side, hard wire jumper (13) rear end connects, and middle phase line side (6) is connected with hard wire jumper (14) rear end on described inner side, outside phase line Side, road (8) is connected with hard wire jumper (15) rear end on described outside;Inner edge phase line two side (7) and hard wire jumper on described inner side (14) front end connects, and middle phase line two side (9) is connected with hard wire jumper (15) front end on described outside;
Described inner edge phase line side (4) is arranged on described wire cross-arm inner end by the first strain insulator string (18) (3.1) rear side, described middle phase line side (6) is arranged on described shaft tower tower body (1) by the second strain insulator string (19) On rear side of portion, phase line side, described outside (8) is arranged on described wire cross-arm outer end by the 3rd strain insulator string (20) (3.2) rear side;It is inner that described inner edge phase line two side (7) is arranged on described wire cross-arm by the 4th strain insulator string (21) Front side, portion (3.1), described middle phase line two side (9) is arranged on described shaft tower tower body (1) by the 5th strain insulator string (22) On front side of top, phase line two side, described outside (5) is arranged on described wire cross-arm outer end by the 6th strain insulator string (23) Front side, portion (3.2);
The two ends of described ground wire cross-arm have been respectively fixedly connected with inner side wire jumper support (16) and outside wire jumper support (17), described interior On side, hard wire jumper (14) is hung by the first wire jumper insulator chain (24) and is located on described inner side wire jumper support (16), on described outside Hard wire jumper (15) is hung by the second wire jumper insulator chain (25) and is located on described outside wire jumper support (17), firmly jumps under described inner side Line (13) hangs, by the 3rd wire jumper insulator chain (26), the inner end being located at described wire cross-arm (3).
A kind of 750kV the most according to claim 1 is combined cross-arm transposition tower, it is characterised in that: two described first wire jumpers Insulator chain (24) is symmetricly set in the two ends of described inner side wire jumper support (16), and connects hard wire jumper (14) on described inner side Both sides;Two described second wire jumper insulator chains (25) are symmetricly set in the two ends of described outside wire jumper support (17), and connect The both sides of hard wire jumper (15) on described outside;Two described 3rd wire jumper insulator chains (26) are respectively symmetrically and are arranged at described wire The front side of cross-arm inner end (3.1) and rear side, and it is connected to the both sides of hard wire jumper (13) under described inner side.
CN201610677182.5A 2016-08-17 2016-08-17 A kind of compound cross-arm transposition towers of 750kV Active CN106088775B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114268067A (en) * 2021-11-17 2022-04-01 河南鼎力杆塔股份有限公司 Transposition method of strain transposition tower

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201635465U (en) * 2009-06-30 2010-11-17 中国电力工程顾问集团公司 Extra-high voltage electric transmission line terminal high tower
CN202677988U (en) * 2012-04-12 2013-01-16 中国电力工程顾问集团西北电力设计院 Plus or minus 400kV direct current line 160kN hard jumper wire suspended insulator chain
CN202978160U (en) * 2012-12-07 2013-06-05 中国电力工程顾问集团西北电力设计院 Four-split jumper wire used for 750kV alternating current line
CN103696612A (en) * 2013-12-17 2014-04-02 中国电力工程顾问集团中南电力设计院 1,000kV double-circuit co-pole transposition tower
CN206144240U (en) * 2016-08-17 2017-05-03 中国电力工程顾问集团中南电力设计院有限公司 Compound cross arm transposition tower of 750kV

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201635465U (en) * 2009-06-30 2010-11-17 中国电力工程顾问集团公司 Extra-high voltage electric transmission line terminal high tower
CN202677988U (en) * 2012-04-12 2013-01-16 中国电力工程顾问集团西北电力设计院 Plus or minus 400kV direct current line 160kN hard jumper wire suspended insulator chain
CN202978160U (en) * 2012-12-07 2013-06-05 中国电力工程顾问集团西北电力设计院 Four-split jumper wire used for 750kV alternating current line
CN103696612A (en) * 2013-12-17 2014-04-02 中国电力工程顾问集团中南电力设计院 1,000kV double-circuit co-pole transposition tower
CN206144240U (en) * 2016-08-17 2017-05-03 中国电力工程顾问集团中南电力设计院有限公司 Compound cross arm transposition tower of 750kV

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114268067A (en) * 2021-11-17 2022-04-01 河南鼎力杆塔股份有限公司 Transposition method of strain transposition tower

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