CN102280226A - Composite insulator suspension string in overhead transmission line - Google Patents

Composite insulator suspension string in overhead transmission line Download PDF

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Publication number
CN102280226A
CN102280226A CN 201110207492 CN201110207492A CN102280226A CN 102280226 A CN102280226 A CN 102280226A CN 201110207492 CN201110207492 CN 201110207492 CN 201110207492 A CN201110207492 A CN 201110207492A CN 102280226 A CN102280226 A CN 102280226A
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CN
China
Prior art keywords
string
eye
ball
gold utensil
socket
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Pending
Application number
CN 201110207492
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Chinese (zh)
Inventor
王茂成
姚建生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU TIANNAN POWER EQUIPMENT CO Ltd
YANTAI ELECTRIC POWER DESIGN INSTITUTE CO LTD
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
JIANGSU TIANNAN POWER EQUIPMENT CO Ltd
YANTAI ELECTRIC POWER DESIGN INSTITUTE CO LTD
Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by JIANGSU TIANNAN POWER EQUIPMENT CO Ltd, YANTAI ELECTRIC POWER DESIGN INSTITUTE CO LTD, Yantai Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical JIANGSU TIANNAN POWER EQUIPMENT CO Ltd
Priority to CN 201110207492 priority Critical patent/CN102280226A/en
Publication of CN102280226A publication Critical patent/CN102280226A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a composite insulator suspension string in an overhead transmission line. The suspension string comprises composite insulators (1) and is characterized in that a ball socket structure (2) is arranged at the upper end of the composite insulators (1); a ball head structure (3) is arranged at the lower end of the composite insulators (1); the ball socket structure (2) is connected with an earth terminal fitting string; the ball head structure (3) is connected with a high voltage terminal fitting string; the earth terminal fitting string or the high voltage terminal fitting string is provided with at least two U-shaped inner arc rings (12); and the U-shaped inner arc rings (12) are connected ring by ring. The composite insulator suspension string has the following positive effect: the fitting string can axially turn around at a certain angle by changing the connection mode of the fittings, thus avoiding axial turn of the composite insulations so as to avoid damaging the connection strength between the core rod and end fitting.

Description

A kind of overhead transmission line composite insulator string that dangles
Technical field:
The present invention relates to a kind of overhead transmission line composite insulator string that dangles, belong to the design of electric power system overhead transmission line, operation, maintenance field.
Background technology:
At present, all composite insulators string that dangles mainly is made up of composite insulator and line hardware in the overhead transmission line, mainly is divided into the inner inlaying type composite insulator and dangles and go here and there and the compression joint type composite insulator string that dangles.(#1～#15 is a compression joint type to one group of 500kV strain insulator composite insulator that Shandong Research Inst. of Electric Power carried out in 2005, #16～#27 is an inner inlaying type) ± 10 ° of pull and torsion test data show: the test product that the end is connected to compression joint type through draw turn round composite test after the mechanical damage load in various degree reduction (on average reducing by 5%) is all arranged, and the inner inlaying type test product through draw turn round composite test after mechanical damage load raise on the contrary (on average improving 6%).This is because the mechanical load of compression joint type test product is a process that descends gradually, and the inner inlaying type test product is carved the pulling force that bears the piece both sides after turning round composite test and redistributed through drawing, and the mechanical damage load wants high than initial value.Because the inner inlaying type manufacture craft is not really ripe, so far, selects the compression joint type composite insulator mostly for use, like this, the mechanical performance decline phenomenon of compression joint type composite insulator in running is inevitable.And low-angle takes place and reverses in the composite insulator that said structure causes being made up of flexible material under various unfavorable operating modes, thereby weakens the bonding strength of plug and end gold utensil.
Summary of the invention:
The objective of the invention is to overcome the deficiency of above-mentioned prior art and provide a kind of by changing the connected mode between the gold utensil, make the gold utensil string can the certain angle earth's axis to rotation, thereby avoid composite insulator generation axial torsion, the overhead transmission line composite insulator that destroys the strength of connection of plug and the end gold utensil string that dangles.
Purpose of the present invention can reach by following measure: a kind of overhead transmission line composite insulator string that dangles, it comprises composite insulator, the upper end that it is characterized in that composite insulator is provided with socket arrangement, the lower end is provided with ball head structure, socket arrangement connects earth terminal gold utensil string, ball head structure connects high-pressure side gold utensil string, and earth terminal gold utensil string or high-pressure side gold utensil string are provided with at least two inner arc U-loops, and inner arc U-loop ring-ring joins.
In order further to realize purpose of the present invention, described earth terminal gold utensil string is connected and composed by ball-eye and link plate, ball-eye is connected with socket arrangement, high-pressure side gold utensil string is connected and composed successively by socket-clevis eye, two inner arc U-loops, link plate, suspension clamps at least, and socket-clevis eye is connected with ball head structure.
In order further to realize purpose of the present invention, described earth terminal gold utensil string is connected and composed by ball-eye and two inner arc U-loops at least, ball-eye is connected with socket arrangement, and high-pressure side gold utensil string is connected and composed successively by socket-clevis eye, suspension clamp, and socket-clevis eye is connected with ball head structure.
In order further to realize purpose of the present invention, described earth terminal gold utensil string is connected and composed by ball-eye and two inner arc U-loops at least, ball-eye is connected with socket arrangement, high-pressure side gold utensil string is connected and composed successively by socket-clevis eye, two inner arc U-loops, link plate, suspension clamps at least, and socket-clevis eye is connected with ball head structure.
In order further to realize purpose of the present invention, described socket-clevis eye is a W type socket-clevis eye.
In order further to realize purpose of the present invention, described earth terminal gold utensil string is connected and composed by ball-eye and link plate, ball-eye is connected with socket arrangement, high-pressure side gold utensil string is connected and composed by at least two inner arc U-loops, two yoke plates, link plate, two division suspension clamp, and the inner arc U-loop is connected with ball head structure.
In order further to realize purpose of the present invention, described earth terminal gold utensil string is connected and composed by ball-eye and two inner arc U-loops at least, ball-eye is connected with socket arrangement, high-pressure side gold utensil string is connected and composed by socket-clevis eye, two yoke plates, link plate, two division suspension clamp, and socket-clevis eye is connected with ball head structure.
In order to realize that further purpose of the present invention, described socket-clevis eye adopt WS type socket-clevis eye.
In order further to realize purpose of the present invention, described earth terminal gold utensil string is connected and composed by ball-eye and two inner arc U-loops at least, ball-eye is connected with socket arrangement, high-pressure side gold utensil string high-pressure side gold utensil string is connected and composed by at least two inner arc U-loops, two yoke plates, link plate, two division suspension clamp, and the inner arc U-loop is connected with ball head structure.
In order to realize that further purpose of the present invention, described ball-eye adopt QP type ball-eye.
The present invention can produce following good effect compared with the prior art: the composite insulator that the present invention includes bulb, socket arrangement, its one or both ends at composite insulator are connected with ball-eye or socket-clevis eye respectively, then, ball-eye or socket-clevis eye connect two and above inner arc U-loop respectively, thereby make composite insulator gold utensil string have the axial rotation function of certain angle, in this angular range, guarantee that composite electric insulator core bar is not turned round, guarantee the mechanical performance of composite insulator, make the transmission line safe and reliable operation.
Description of drawings:
The structural representation of first kind of execution mode that Fig. 1 goes here and there for overhead transmission line composite insulator single conductor of the present invention dangles;
The structural representation of second kind of execution mode that Fig. 2 goes here and there for overhead transmission line composite insulator single conductor of the present invention dangles;
The structural representation of the third execution mode that Fig. 3 goes here and there for overhead transmission line composite insulator single conductor of the present invention dangles;
The structural representation of first kind of execution mode that Fig. 4 goes here and there for overhead transmission line composite insulator double bundle conductor of the present invention dangles;
The structural representation of second kind of execution mode that Fig. 5 goes here and there for overhead transmission line composite insulator double bundle conductor of the present invention dangles;
The structural representation of the third execution mode that Fig. 6 goes here and there for overhead transmission line composite insulator double bundle conductor of the present invention dangles;
Embodiment: preferred forms of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment 1, a kind of overhead transmission line composite insulator single conductor string (referring to Fig. 1) that dangles, it comprises composite insulator 1, the upper end of composite insulator 1 is provided with socket arrangement 2, the lower end is provided with ball head structure 3, socket arrangement 2 connects earth terminal gold utensil string, this earth terminal gold utensil string is connected and composed by QP type ball-eye 4 and UB link plate 5, and QP type ball-eye 4 is connected with socket arrangement 2.Ball head structure 3 connects high-pressure side gold utensil strings, and high-pressure side gold utensil string is connected and composed successively by socket-clevis eye 6, two the inner arc U-loops 12 that ring-ring joins, PD link plate 13, suspension clamps 7 (holding lead), and socket-clevis eye 6 is connected with ball head structure 3.
Embodiment 2, a kind of overhead transmission line composite insulator single conductor string (referring to Fig. 2) that dangles, it comprises composite insulator 1, the upper end of composite insulator 1 is provided with socket arrangement 2, the lower end is provided with ball head structure 3, socket arrangement 2 connects earth terminal gold utensil string, this earth terminal gold utensil string is connected and composed by the inner arc U-loop 12 that QP type ball-eye 4 and two ring-rings join, and QP type ball-eye 4 is connected with socket arrangement 2.Ball head structure 3 connects high-pressure side gold utensil string, and high-pressure side gold utensil string is connected and composed successively by socket-clevis eye 6, suspension clamp 7, and socket-clevis eye 6 is connected with ball head structure 3.
Embodiment 3, a kind of overhead transmission line composite insulator single conductor string (referring to Fig. 3) that dangles, it comprises composite insulator 1, the upper end of composite insulator 1 is provided with socket arrangement 2, the lower end is provided with ball head structure 3, socket arrangement 2 connects earth terminal gold utensil string, this earth terminal gold utensil string is connected and composed by the inner arc U-loop 12 that QP type ball-eye 4 and two ring-rings join, and QP type ball-eye 4 is connected with socket arrangement 2.Ball head structure 3 connects high-pressure side gold utensil strings, and high-pressure side gold utensil string is connected and composed successively by socket-clevis eye 6, two the inner arc U-loops 12 that ring-ring joins, PD link plate 13, suspension clamps 7 (holding lead), and socket-clevis eye 6 is connected with ball head structure 3.
Embodiment 4, a kind of overhead transmission line composite insulator double bundle conductor string (referring to Fig. 4) that dangles, it comprises composite insulator 1, the upper end of composite insulator 1 is provided with socket arrangement 2, the lower end is provided with ball head structure 3, socket arrangement 2 connects earth terminal gold utensil string, this earth terminal gold utensil string is connected and composed by QP type ball-eye 4 and UB link plate 5, and QP type ball-eye 4 is connected with socket arrangement 2.Ball head structure 3 connects high-pressure side gold utensil string, and high-pressure side gold utensil string is connected and composed by inner arc U-loop 12, two yoke plates 9, link plate 10, the two division suspension clamp 11 (holding lead) that two ring-rings join, and inner arc U-loop 12 is connected with ball head structure 3.
Embodiment 5, a kind of overhead transmission line composite insulator single conductor string (referring to Fig. 5) that dangles, it comprises composite insulator 1, the upper end of composite insulator 1 is provided with socket arrangement 2, the lower end is provided with ball head structure 3, socket arrangement 2 connects earth terminal gold utensil string, this earth terminal gold utensil string is connected and composed by the inner arc U-loop 12 that QP type ball-eye 4 and two ring-rings join, and QP type ball-eye 4 is connected with socket arrangement 2.Ball head structure 3 connects high-pressure side gold utensil string, and high-pressure side gold utensil string is connected and composed by WS type socket-clevis eye 8, two yoke plates 9, link plate 10, two division suspension clamp 11 (holding lead), and WS type socket-clevis eye 8 is connected with ball head structure 3.
Embodiment 6, a kind of overhead transmission line composite insulator single conductor string (referring to Fig. 6) that dangles, it comprises composite insulator 1, the upper end of composite insulator 1 is provided with socket arrangement 2, the lower end is provided with ball head structure 3, socket arrangement 2 connects earth terminal gold utensil string, this earth terminal gold utensil string is connected and composed by the inner arc U-loop 12 that QP type ball-eye 4 and two ring-rings join, and QP type ball-eye 4 is connected with socket arrangement 2.Ball head structure 3 connects high-pressure side gold utensil string, and high-pressure side gold utensil string is connected and composed by inner arc U-loop 12, two yoke plates 9, link plate 10, the two division suspension clamp 11 (holding lead) that two ring-rings join, and inner arc U-loop 12 is connected with ball head structure 3.

Claims (10)

1. overhead transmission line composite insulator string that dangles, it comprises composite insulator (1), the upper end that it is characterized in that composite insulator (1) is provided with socket arrangement (2), the lower end is provided with ball head structure (3), socket arrangement (2) connects earth terminal gold utensil string, ball head structure (3) connects high-pressure side gold utensil string, and earth terminal gold utensil string or high-pressure side gold utensil string are provided with at least two inner arc U-loops (12), and inner arc U-loop (12) ring-ring joins.
2. a kind of overhead transmission line composite insulator according to claim 1 string that dangles, it is characterized in that described earth terminal gold utensil string is connected and composed by ball-eye (4) and link plate (5), ball-eye (4) is connected with socket arrangement (2), high-pressure side gold utensil string is connected and composed successively by socket-clevis eye (6), two inner arc U-loops (12), link plate (13), suspension clamp (7) at least, and socket-clevis eye (6) is connected with ball head structure (3).
3. a kind of overhead transmission line composite insulator according to claim 1 string that dangles, it is characterized in that described earth terminal gold utensil string is connected and composed by ball-eye (4) and two inner arc U-loops (12) at least, ball-eye (4) is connected with socket arrangement (2), high-pressure side gold utensil string is connected and composed successively by socket-clevis eye (6), suspension clamp (7), and socket-clevis eye (6) is connected with ball head structure (3).
4. a kind of overhead transmission line composite insulator according to claim 1 string that dangles, it is characterized in that described earth terminal gold utensil string is connected and composed by ball-eye (4) and two inner arc U-loops (12) at least, ball-eye (4) is connected with socket arrangement (2), high-pressure side gold utensil string is connected and composed successively by socket-clevis eye (6), two inner arc U-loops (12), link plate (13), suspension clamp (7) at least, and socket-clevis eye (6) is connected with ball head structure (3).
5. according to claim 2 or the 3 or 4 described a kind of overhead transmission line composite insulators string that dangles, it is characterized in that described socket-clevis eye (6) is a W type socket-clevis eye.
6. a kind of overhead transmission line composite insulator according to claim 1 string that dangles, it is characterized in that described earth terminal gold utensil string is connected and composed by ball-eye (4) and link plate (5), ball-eye (4) is connected with socket arrangement (2), high-pressure side gold utensil string is connected and composed by at least two inner arc U-loops (12), two yoke plates (9), link plate (10), two division suspension clamp (11), and inner arc U-loop (12) is connected with ball head structure (3).
7. a kind of overhead transmission line composite insulator according to claim 1 string that dangles, it is characterized in that described earth terminal gold utensil string is connected and composed by ball-eye (4) and two inner arc U-loops (12) at least, ball-eye (4) is connected with socket arrangement (2), high-pressure side gold utensil string is connected and composed by socket-clevis eye (8), two yoke plates (9), link plate (10), two division suspension clamp (11), and socket-clevis eye (8) is connected with ball head structure (3).
8. a kind of overhead transmission line composite insulator according to claim 7 string that dangles is characterized in that described socket-clevis eye (8) adopts WS type socket-clevis eye.
9. a kind of overhead transmission line composite insulator according to claim 1 string that dangles, it is characterized in that described earth terminal gold utensil string is connected and composed by ball-eye (4) and two inner arc U-loops (12) at least, ball-eye (4) is connected with socket arrangement (2), high-pressure side gold utensil string high-pressure side gold utensil string is connected and composed by at least two inner arc U-loops (12), two yoke plates (9), link plate (10), two division suspension clamp (11), and inner arc U-loop (12) is connected with ball head structure (3).
10. according to claim 2 or 3 or 4 or 6 or the 7 or 9 described a kind of overhead transmission line composite insulators string that dangles, it is characterized in that described ball-eye (4) adopts QP type ball-eye.
CN 201110207492 2011-07-15 2011-07-15 Composite insulator suspension string in overhead transmission line Pending CN102280226A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN 201110207492 CN102280226A (en) 2011-07-15 2011-07-15 Composite insulator suspension string in overhead transmission line

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117523A (en) * 2012-12-18 2013-05-22 湖南省电力公司科学研究院 Electric transmission line adjusting and climbing modification method for breaking through operation line window size
CN103683156A (en) * 2013-12-13 2014-03-26 国家电网公司 Jumper socket wire clamp
CN104103385A (en) * 2014-07-21 2014-10-15 国家电网公司 Overhung composite insulator string and method for printing same by using 3D
CN104240867A (en) * 2014-09-22 2014-12-24 国家电网公司 Double bundle conductor composite strain insulator string
CN104269232A (en) * 2014-09-22 2015-01-07 国家电网公司 Composite insulator V-shaped overhung string for overhead transmission line
CN109904820A (en) * 2019-01-26 2019-06-18 上海神勇机械技术有限公司 A kind of preformed carrying out safety backup wire clamp of pendency
CN110364316A (en) * 2019-08-14 2019-10-22 国网青海省电力公司西宁供电公司 A kind of transmission line of electricity supporting insulator fitting end

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Publication number Priority date Publication date Assignee Title
CN2914433Y (en) * 2006-05-29 2007-06-20 辽宁锦兴电力金具科技股份有限公司 Duplex hanging string of extra high voltage transmission line
CN201750110U (en) * 2010-03-11 2011-02-16 山东电力集团公司烟台供电公司 Connecting device of overhead power transmission line composite insulator and hardware string
JP2011065928A (en) * 2009-09-18 2011-03-31 Ngk Insulators Ltd Triple tension insulator with lightning arrester

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Publication number Priority date Publication date Assignee Title
CN2914433Y (en) * 2006-05-29 2007-06-20 辽宁锦兴电力金具科技股份有限公司 Duplex hanging string of extra high voltage transmission line
JP2011065928A (en) * 2009-09-18 2011-03-31 Ngk Insulators Ltd Triple tension insulator with lightning arrester
CN201750110U (en) * 2010-03-11 2011-02-16 山东电力集团公司烟台供电公司 Connecting device of overhead power transmission line composite insulator and hardware string

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《电力建设》 20110430 王茂成等 "输电线路复合绝缘子和金具串的优化设计" 第97页右栏倒数第4行至第99页右栏第2行，图6，第96页右栏倒数第4行至第97页第15行，图1-3 1-10 第32卷, 第4期 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117523A (en) * 2012-12-18 2013-05-22 湖南省电力公司科学研究院 Electric transmission line adjusting and climbing modification method for breaking through operation line window size
CN103683156A (en) * 2013-12-13 2014-03-26 国家电网公司 Jumper socket wire clamp
CN104103385A (en) * 2014-07-21 2014-10-15 国家电网公司 Overhung composite insulator string and method for printing same by using 3D
CN104103385B (en) * 2014-07-21 2017-02-15 国家电网公司 Overhung composite insulator string and method for printing same by using 3D
CN104240867A (en) * 2014-09-22 2014-12-24 国家电网公司 Double bundle conductor composite strain insulator string
CN104269232A (en) * 2014-09-22 2015-01-07 国家电网公司 Composite insulator V-shaped overhung string for overhead transmission line
CN109904820A (en) * 2019-01-26 2019-06-18 上海神勇机械技术有限公司 A kind of preformed carrying out safety backup wire clamp of pendency
CN110364316A (en) * 2019-08-14 2019-10-22 国网青海省电力公司西宁供电公司 A kind of transmission line of electricity supporting insulator fitting end

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Application publication date: 20111214