CN106088775B - A kind of compound cross-arm transposition towers of 750kV - Google Patents

A kind of compound cross-arm transposition towers of 750kV Download PDF

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Publication number
CN106088775B
CN106088775B CN201610677182.5A CN201610677182A CN106088775B CN 106088775 B CN106088775 B CN 106088775B CN 201610677182 A CN201610677182 A CN 201610677182A CN 106088775 B CN106088775 B CN 106088775B
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China
Prior art keywords
arm
wire jumper
phase line
cross
outside
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CN201610677182.5A
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CN106088775A (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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    • 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 compound cross-arm transposition towers of 750kV; horizontal wire jumper is supported by compound cross-arm and hardware string; horizontal wire jumper is allow to be parallel to the setting of conducting wire cross-arm; realize that --- compound cross-arm transposition cross-arm --- hard wire jumper under inside --- jumper string that inner edge mutually replaces length reduces 7m to outside phase; corresponding shaft tower tower body overall height can at least reduce 7m; single base cost at least reduces by 29%; reduce column foot floor space; transposition tower is improved to terrain adaptability; and the structure of the present invention is not limited by orographic condition, it is applied widely.

Description

A kind of compound cross-arm transposition towers of 750kV
Technical field
The invention belongs to electric power line pole tower fields, and in particular to a kind of compound cross-arm transposition towers of 750kV.
Background technology
Currently, China's 750kV transmission lines of electricity generally use the transposition tower with double-bus frame, that is, three base independent iron towers are used, It completes to replace jointly by an anchor support and two bus-bar frames.As shown in Figure 1, the 750kV transposition towers with double-bus frame use one A single time anchor support combines two bus-bar frames to complete transposition, --- the hard wire jumper on inside --- middle phase, middle phase --- from inner edge phase --- --- sub- tower --- hard wire jumper under inside --- inner edge mutually realizes that three-phase replaces to the hard wire jumper in outside for outside phase, outside phase.It is former There is tower scheme to use band double-bus frame transposition tower, shares three base steel towers, ontology cost is high, and column foot takes up a large area, to landform Condition is more demanding, limits its use scope.
Invention content:
The object of the present invention is to provide a kind of compound cross-arm transposition towers of 750kV, can realize the same of three-phase line transposition When, it reduces project cost and improves adaptability simultaneously, to solve the problems, such as background technology.
To achieve the goals above, the technical scheme is that:
A kind of compound cross-arm transposition towers of 750kV, including the earth wire support at the top of shaft tower tower body is set, it is arranged in shaft tower tower Conducting wire cross-arm in the middle part of body, three-phase line are set to 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 conducting wire cross-arm inner end, and middle phase line side is arranged on shaft tower tower body top Rear side, outside phase line side are arranged on rear side of conducting wire cross-arm outer end;Two side of inner edge phase line is arranged in conducting wire cross-arm inner end On front side of portion, in shaft tower tower body upper front, phase line two side in outside is arranged in conducting wire cross-arm outer end for middle two side of phase phase line setting On front side of portion;
For two side of outside phase line by the front end of hard wire jumper under horizontal wire jumper connection inside, horizontal wire jumper and conducting wire cross-arm are flat Row setting, the middle part of horizontal wire jumper is connected and supported by insulated compound cross-arm 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.
Including a pair of compound cross-arm, a pair of compound cross-arm is symmetrically disposed on shaft tower tower body, and 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 separately with hard wire jumper on the upper hard wire jumper in inside and outside, conducting wire cross-arm Inner end be connected with inside under hard wire jumper;Inner edge phase line side is connect with hard wire jumper rear end under inside, middle phase line side It is connect with hard wire jumper rear end on inside, outside phase line side is connect with hard wire jumper rear end on outside;Two side of inner edge phase line with Hard wire jumper front end connection on inside, two side of middle phase line is connect with hard wire jumper front end on outside.
Inner edge phase line side is arranged by the first strain insulator string on rear side of conducting wire cross-arm inner end, middle phase line one Side is arranged by the second strain insulator string on rear side of shaft tower tower body top, and outside phase line side passes through third strain insulator String is arranged on rear side of conducting wire cross-arm outer end;Two side of inner edge phase line is arranged by the 4th strain insulator string in conducting wire cross-arm On front side of end, two side of middle phase line is arranged by the 5th strain insulator string in shaft tower tower body upper front, outside phase line two Side is arranged by the 6th strain insulator string on front side of conducting wire cross-arm outer end.
The both ends of ground wire cross-arm have been respectively fixedly connected with inside wire jumper holder and outside wire jumper holder, and hard wire jumper is logical on inside Cross the first wire jumper insulator chain hang be located inside wire jumper holder on, hard wire jumper is hung by the second wire jumper insulator chain and is located on outside On the wire jumper holder of outside, hard wire jumper hangs the inner end for being located at conducting wire cross-arm by third wire jumper insulator chain under inside.
Preferably, two the first wire jumper insulator chains are symmetrically disposed on the both ends of inside wire jumper holder, and connect on inside The both sides of hard wire jumper;Two the second wire jumper insulator chains are symmetrically disposed on the both ends of outside wire jumper holder, and it is upper hard to connect outside The both sides of wire jumper;Two third wire jumper insulator chains are symmetrically arranged in the front side of conducting wire cross-arm inner end and rear side, and even It is connected to the both sides of hard wire jumper under inside.
The beneficial effects of the present invention are:Horizontal wire jumper is supported by compound cross-arm and hardware string so that horizontal Wire jumper can be parallel to the setting of conducting wire cross-arm, realize outside phase --- compound cross-arm transposition cross-arm --- hard wire jumper under inside --- The jumper string length that inner edge mutually replaces reduces 7m, and corresponding shaft tower tower body overall height can at least reduce 7m, and single base cost at least reduces 29%, reduce column foot floor space, improves 750kV transposition towers to terrain adaptability, and the structure of the present invention is not by orographic condition Limitation, it is applied widely.
Description of the drawings
Fig. 1 is existing 750kv transmission lines of electricity transposition tower,
Fig. 2 is the structural schematic diagram of the embodiment of the present invention.
In figure:1- shaft tower tower bodies, 2- earth wire supports, 3- conducting wire cross-arms, 3.1- conducting wire cross-arm inner ends, 3.2- conducting wire cross-arms Outer end, 4- inner edge phase lines side, two side of phase line outside 5-, phase line side in 6-, two side of 7- inner edges phase line, outside 8- Side phase line side, two side of phase line in 9-, the horizontal wire jumpers of 10-, 11 compound cross-arms, 12- hardware strings, on the inside of 13- under hard wire jumper, Hard wire jumper on the insides 14-, hard wire jumper on the outsides 15-, wire jumper holder on the inside of 16-, wire jumper holder on the outside of 17-, the first strain insulators of 18- are exhausted Edge substring, the second strain insulator strings of 19-, 20- third strain insulator strings, the 4th strain insulator strings of 21-, 22- the 5th are resistance to Open insulator chain, the 6th strain insulator strings of 23-, 24 first wire jumper insulator chains, 25- the second wire jumper insulator chains, 26- thirds Wire jumper insulator chain.
Specific implementation mode
The present invention is described further with reference to the accompanying drawings and examples.
As shown in Fig. 2, a kind of compound cross-arm transposition towers of 750kV, including the earth wire support 2 at 1 top of shaft tower tower body is set, Conducting wire cross-arm 3 at the middle part of shaft tower tower body 1 is set, three-phase line is set to transposition tower, three-phase line include inner edge phase line, in Phase line and outside phase line, in 3.1 rear side of conducting wire cross-arm inner end, middle phase line side 6 is set the setting of inner edge phase line side 4 It sets on rear side of 1 top of shaft tower tower body, the setting of outside phase line side 8 is in 3.2 rear side of conducting wire cross-arm outer end;Inner edge phase line two In 3.1 front side of conducting wire cross-arm inner end, two side 9 of middle phase line is arranged in 1 upper front of shaft tower tower body, outside phase line the setting of side 7 The setting of two side 5 of road is in 3.2 front side of conducting wire cross-arm outer end;
Two side 5 of outside phase line by horizontal wire jumper 10 connection inside under hard wire jumper 13 front end, horizontal wire jumper 10 with lead Line cross-arm 3 is arranged in parallel, and the middle part of horizontal wire jumper 10 is connected and supported by insulated compound cross-arm 11 in shaft tower tower body 1.
One end connection shaft tower tower body 1 of compound cross-arm 11, the middle part of horizontal wire jumper 10 are hung at compound by hardware string 12 The other end of cross-arm 11.The present embodiment includes a pair of compound cross-arm 11, and a pair of compound cross-arm 11 is symmetrically disposed in shaft tower tower body 1 The edge of side and outside, each compound cross-arm connect horizontal wire jumper 10 by a hardware string 12 respectively.
The inner end of earth wire support 2 and outer end are connected separately with hard wire jumper 15 on the upper hard wire jumper 14 in inside and outside, lead The inner end of line cross-arm 3 is connected with hard wire jumper 13 under inside;Inner edge phase line side 4 is connect with 13 rear end of hard wire jumper under inside, Middle phase line side 6 is connect with 14 rear end of hard wire jumper on inside, and outside phase line side 8 connects with 15 rear end of hard wire jumper on outside It connects;Two side 7 of inner edge phase line is connect with 14 front end of hard wire jumper on inside, two side 9 of middle phase line and 15 front end of hard wire jumper on outside Connection.
Inner edge phase line side 4 is arranged by the first strain insulator string 18 in 3.1 rear side of conducting wire cross-arm inner end, middle phase Circuit side 6 is arranged by the second strain insulator string 19 on rear side of 1 top of shaft tower tower body, and outside phase line side 8 passes through the The setting of three strain insulator strings 20 is in 3.2 rear side of conducting wire cross-arm outer end;Two side 7 of inner edge phase line passes through the 4th strain insulator In 3.1 front side of conducting wire cross-arm inner end, two side 9 of middle phase line is arranged by the 5th strain insulator string 22 in shaft tower 21 setting of string 1 upper front of tower body, two side 5 of outside phase line are arranged by the 6th strain insulator string 23 before conducting wire cross-arm outer end 3.2 Side.
The both ends of ground wire cross-arm have been respectively fixedly connected with inside wire jumper holder 16 and outside wire jumper holder 17, are jumped firmly on inside Line 14 is hung by the first wire jumper insulator chain 24 to be located on inside wire jumper holder 16, and hard wire jumper 15 is exhausted by the second wire jumper on outside Edge substring 25, which is hung, to be located on outside wire jumper holder 17, and hard wire jumper 13 is hung by third wire jumper insulator chain 26 and is located at conducting wire under inside The inner end of cross-arm 3.
Two the first wire jumper insulator chains 24 are symmetrically disposed on the both ends of inside wire jumper holder 16, and connect the upper hard jump in inside The both sides of line 14;Two the second wire jumper insulator chains 25 are symmetrically disposed on the both ends of outside wire jumper holder 17, and connect on outside The both sides of hard wire jumper 15;Two third wire jumper insulator chains 26 be symmetrically arranged in the front side of conducting wire cross-arm inner end 3.1 and Rear side, and it is connected to the both sides of hard wire jumper 13 under inside.
Compound 11 transposition towers of cross-arm of 750kV described in the present embodiment realize transposition on same shaft tower, by increasing tower body Replace compound wire jumper cross-arm, realizes outside phase --- compound cross-arm transposition cross-arm 11 --- hard wire jumper 13 under inside --- inner edge phase Transposition, inner edge phase --- middle phase, middle phase --- transposition form of outside phase achieve the purpose that existing conventional scheme is consistent.Due to The compound cross-arm transposition towers of 750kV only need to configure jump only with single base shaft tower, and after combining compound cross-arm 11 using horizontal wire jumper 10 Line hardware string so that jumper string length reduces 7m, and corresponding shaft tower overall height can reduce 7m, and single base cost reduces by 29%, reduces column foot Floor space improves transposition tower to terrain adaptability, and is not limited by orographic condition.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description, And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.It is not retouched in detail in this specification That states partly belongs to the prior art well known to professional and technical personnel in the field.

Claims (2)

1. a kind of compound cross-arm transposition towers of 750kV include earth wire support (2) of the setting at the top of shaft tower tower body (1), are arranged in institute The conducting wire cross-arm (3) in the middle part of shaft tower tower body (1) is stated, three-phase line is set to the transposition tower, and the three-phase line includes inner edge Phase line, middle phase line and outside phase line, it is characterised in that:
On rear side of the conducting wire cross-arm inner end (3.1), middle phase line side (6) sets for inner edge phase line side (4) setting It sets on rear side of shaft tower tower body (1) top, outside phase line side (8) is arranged behind conducting wire cross-arm outer end (3.2) Side;On front side of the conducting wire cross-arm inner end (3.1), two side of middle phase line (9) is arranged in institute for two side of inner edge phase line (7) setting Shaft tower tower body (1) upper front is stated, two side of outside phase line (5) setting is on front side of conducting wire cross-arm outer end (3.2);
Two side of outside phase line (5) passes through the front end of hard wire jumper (13) under horizontal wire jumper (10) connection inside, the level Wire jumper (10) is arranged in parallel with the conducting wire cross-arm (3), and the middle part of the horizontal wire jumper (10) passes through insulated compound cross-arm (11) It connects and supports in the shaft tower tower body (1);
One end of the compound cross-arm (11) connects the shaft tower tower body (1), passes through gold utensil in the middle part of the horizontal wire jumper (10) String (12) is hung at the other end of the compound cross-arm (11);
Including a pair of compound cross-arm (11), the pair of compound cross-arm (11) is symmetrically disposed on the shaft tower tower body (1), often A compound cross-arm (11) connects horizontal wire jumper (10) by a hardware string (12);
The inner end of the earth wire support (2) and outer end are connected separately with hard wire jumper on the upper hard wire jumper (14) in inside and outside (15), the inner end of the conducting wire cross-arm (3) is connected with hard wire jumper (13) under inside;Inner edge phase line side (4) with it is described interior Hard wire jumper (13) rear end connection, middle phase line side (6) connect with hard wire jumper (14) rear end on the inside under side, outside phase line Road side (8) is connect with hard wire jumper (15) rear end on the outside;Two side of inner edge phase line (7) and hard wire jumper on the inside (14) front end connects, and two side of middle phase line (9) is connect with hard wire jumper (15) front end on the outside;
Inner edge phase line side (4) is arranged by the first strain insulator string (18) in the conducting wire cross-arm inner end (3.1) rear side, the middle phase line side (6) are arranged by the second strain insulator string (19) on the shaft tower tower body (1) On rear side of portion, outside phase line side (8) is arranged by third strain insulator string (20) in conducting wire cross-arm outer end (3.2) rear side;Two side of inner edge phase line (7) is arranged by the 4th strain insulator string (21) in conducting wire cross-arm inner end On front side of portion (3.1), two side of middle phase line (9) is arranged by the 5th strain insulator string (22) in the shaft tower tower body (1) Upper front, two side of outside phase line (5) are arranged by the 6th strain insulator string (23) in conducting wire cross-arm outer end On front side of portion (3.2);
The both ends of the ground wire cross-arm have been respectively fixedly connected with inside wire jumper holder (16) and outside wire jumper holder (17), described interior Hard wire jumper (14) is hung by the first wire jumper insulator chain (24) and is located on the inside wire jumper holder (16) on side, on the outside Hard wire jumper (15) is hung by the second wire jumper insulator chain (25) to be located on the outside wire jumper holder (17), is jumped firmly under the inside Line (13) hangs the inner end for being located at the conducting wire cross-arm (3) by third wire jumper insulator chain (26).
2. the compound cross-arm transposition towers of a kind of 750kV according to claim 1, it is characterised in that:Two first wire jumpers Insulator chain (24) is symmetrically disposed on the both ends of the inside wire jumper holder (16), and connects hard wire jumper (14) on the inside Both sides;Two the second wire jumper insulator chains (25) are symmetrically disposed on the both ends of the outside wire jumper holder (17), and connect The both sides of hard wire jumper (15) on the outside;Two third wire jumper insulator chains (26) are symmetrically arranged in the conducting 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 the inside.
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 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

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