CN104252925A - Combined insulator suspension string of overhead power transmission line - Google Patents
Combined insulator suspension string of overhead power transmission line Download PDFInfo
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- CN104252925A CN104252925A CN201410535764.0A CN201410535764A CN104252925A CN 104252925 A CN104252925 A CN 104252925A CN 201410535764 A CN201410535764 A CN 201410535764A CN 104252925 A CN104252925 A CN 104252925A
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- insulator
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Abstract
The invention discloses a combined insulator suspension string of an overhead power transmission line. The combined insulator suspension string is characterized by comprising a clevis (1), wherein the clevis (1) is connected with a ball eye (2); the ball eye (2) is connected with a porcelain core composite insulator string group (3) formed by a plurality of porcelain core composite insulator strings; the porcelain core composite insulator string group (3) is connected with one or two antifouling insulators or glass insulators (4); the antifouling insulators or glass insulators (4) are connected with a socket clevis (5); the socket clevis (5) is connected with a suspension clamp (6); and the suspension clamp (6) is connected with a carbon fiber compound core lead (8). According to the combined insulator suspension string, the electrical performance, the insulation performance, the creepage distance and the steep wave voltage resistance level of each porcelain core composite insulator string can be guaranteed, the porcelain core composite insulator strings are guaranteed to safely and reliably operate in the overhead line which adopts the carbon fiber compound core lead to achieve a life-cycle period, the combined insulator suspension string is free from cleaning, and maintenance workload is reduced.
Description
Technical field:
The present invention relates to a kind of 35 ~ 500kV overhead transmission line combined insulator suspension string, belong to the design of electric power system overhead transmission line, operation, maintenance field.
Background technology:
According to open source literature, so far, existing 2 about the patent of combined insulator string, be described below respectively:
Combined insulator string (ZL200920119357.6): the invention discloses a kind of combined insulator string, comprise the composite rod insulator of main part, it is characterized in that at least being provided with dish-type glass insulator at side of wire on described shape suspended compound insulator.Side of wire dish-type glass insulation quantum count is 1 ~ 6, preferably 4 ~ 6.Combined insulator string of the present invention, have the advantage of plate-shaped suspension type insulator string and composite rod insulator concurrently, both there is very high anti-pollution characteristic, very high puncture voltage can be born, good electric erosion resistance energy, radio interference level is low, leakage current is little, Lightning performance is strong, overcomes again simultaneously and adopts separately dish-type porcelain suspension insulator to occur zero resistance insulator thus cause very large impact to operation of power networks or adopt separately poor or that employing composite rod insulator Lightning performance is poor etc. the separately defect of dish-type glass suspension insulator antifouling capacity.
Suspension type composite insulator (patent No. ZL201220696317.X): the invention discloses a kind of suspension type composite insulator, comprise composite insulator string and disk-like glass insulator string, described composite insulator string lower end is articulated with disk-like glass insulator string top, and single dish type glass insulator is hinged up and down forms by several for described disk-like glass insulator string.Adopt bulb hinged anatomical connectivity between composite insulator string and disk-like glass insulator string, can reduce to act on the bending load on composite insulator and eccentric load, protection composite insulator.Meanwhile, disk-like glass insulator string weight is large, has the effect of weight concurrently, significantly reduces the windage yaw phenomenon that insulator string produces, avoids the generation of windage yaw discharge accident, guarantee the safety of transmission line.
The people such as State Network Electric Power Research Institute Zhang Rui publish thesis " experimental study that composite insulator is applied to carbon fiber composite core wire enlarging project " in " high voltage technique " the 10th phase in 2011.Introduce in literary composition: carbon fiber composite core wire has the advantages such as high temperature resistant, ampacity is large, allowable temperature even can more than 200 DEG C in short-term for they, if use composite insulator, when its high temperature is delivered to composite insulator high voltage end, the crimp strength performance of plug, silastic material and metal-ware bonding pad can be affected, time serious, string accident can be caused.For this reason, from theory calculate, verification experimental verification, analysis on Operating, 4 aspects such as analogue test, analyze under hot operation condition, thermo parameters method situation and the key factor affecting composite insulator runnability of composite insulator high voltage end, and according to the first #1 line of the Liaoning Area 220kV the Liao Dynasty actual motion composite insulator of 2 years electric under ACCC-713 Carbon fiber alloy wire, Mechanical Property Analysis, and in laboratory conditions, the mechanical performance result of variations of composite insulator at different tests temperature, Attention question and suggestion is answered when proposing practical application.Research shows, along with the rising of electric insulator steel foot temperature, composite insulator intensity declines gradually, can be reduced to 50% of initial strength under 180 DEG C of conditions.
From above data, published 2 two patents increase some dish-type glass insulators at the high-pressure side of composite insulator, and shortcoming is: increasing some dish-type glass insulators needs the cleaning that has a power failure, and increases maintenance workload; And composite insulator is lightweight, wind-deviation weak effect; Do not consider carbon fiber composite core wire in high temperature, During Process of Long-term Operation on composite suspension insulator string electric property impact and carbon fiber composite core wire compared with the lightweight shortcoming of ordinary steel core aluminum stranded wire.
Therefore, adopting the combination of safe and reliable porcelain core composite suspension insulator string and 1 ~ 2 antifouling porcelain insulator or glass insulator, is necessary.
The object of the invention is to overcome the deficiency of above-mentioned prior art and a kind of mechanical performance guaranteeing composite insulator is provided, guarantee composite insulator safe and reliable operation in the overhead transmission line adopting carbon fiber composite core wire, reach life cycle management, and exempt from the overhead power transmission line composite insulator composite type suspension string cleaning, reduce maintenance workload.
Object of the present invention can be reached by following measure: a kind of overhead transmission line combined insulator suspension string, it is characterized in that it comprises link plate, link plate connecting ball head link, ball-eye connects the porcelain core composite insulator string group be made up of some porcelain core composite insulator strings, porcelain core composite insulator string group connects 1 ~ 2 antifouling porcelain insulator or glass insulator, antifouling porcelain insulator or glass insulator connect socket-clevis eye, socket-clevis eye connects suspension clamp, and suspension clamp connects carbon fiber composite core wire.
In order to realize object of the present invention further, outside described carbon fiber composite core wire, be provided with aluminium armor tape.
The present invention can produce following good effect compared with the prior art: the present invention one adopts some porcelain core composite insulator strings in suspension string, guarantee the mechanical performance of suspension string in the overhead transmission line adopting carbon fiber composite core wire, two is that antifouling porcelain insulator or glass insulator are at long term high temperature, easy contamination in low temperature alternate run, in insulation coordination design, do not need the insulation property considering antifouling porcelain insulator or glass insulator, only need to consider its heat insulating function and mechanical performance, guarantee porcelain core composite insulator string group safe and reliable operation in the overhead transmission line adopting carbon fiber composite core wire.The present invention installs 1 ~ 2 antifouling porcelain insulator or glass insulator additional below some porcelain core composite insulator strings, play heat-blocking action, guarantee the piece electrical performance of porcelain core composite insulator string in the overhead transmission line adopting carbon fiber composite core wire, reach life cycle management design concept.Therefore wind-deviation effect of the present invention is better than composite insulator and glass insulation sub-portfolio string, and exempts from cleaning, minimizing maintenance workload, reliable.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Embodiment: preferred forms of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of overhead transmission line combined insulator suspension string (see Fig. 1), it is as follows successively to live end from earth terminal: ZBS-07/10-80 type link plate 1, QP-0750 type ball-eye 2, porcelain core composite insulator string group 3,1 ~ 2 antifouling porcelain insulator of XWP2-7 type be made up of some FXWP2-7 type porcelain core composite insulator strings or glass insulator 4, W-0770 type socket-clevis eye 5, XG-6034 type suspension clamp 6, aluminium armor tape 7 and carbon fiber composite core wire 8, above-mentioned parts can select other models as required.Link plate 1 connecting ball head link 2, ball-eye 2 connects the porcelain core composite insulator string group 3 be made up of some porcelain core composite insulator strings, porcelain core composite insulator string group 3 connects 1 ~ 2 antifouling porcelain insulator or glass insulator 4, antifouling porcelain insulator or glass insulator 4 connect socket-clevis eye 5, socket-clevis eye 5 connects suspension clamp 6, suspension clamp 6 connects carbon fiber composite core wire 8, is provided with aluminium armor tape 7 outside carbon fiber composite core wire 8.The heat that high-pressure side carbon fiber composite core wire 8 produces at 120 ~ 180 DEG C of high temperature, by increase by 1 ~ 2 antifouling porcelain insulator of XWP2-7 type or glass insulator 4, is reduced to minimum, guarantees the electric property of porcelain core composite insulator string 3 by the present invention to greatest extent.
Claims (2)
1. an overhead transmission line combined insulator suspension string, it is characterized in that it comprises link plate (1), link plate (1) connecting ball head link (2), ball-eye (2) connects the porcelain core composite insulator string group (3) be made up of some porcelain core composite insulator strings, porcelain core composite insulator string group (3) connects 1 ~ 2 antifouling porcelain insulator or glass insulator (4), antifouling porcelain insulator or glass insulator (4) connect socket-clevis eye (5), socket-clevis eye (5) connects suspension clamp (6), and suspension clamp (6) connects carbon fiber composite core wire (8).
2. a kind of overhead transmission line combined insulator suspension string according to claim 1, is characterized in that being provided with aluminium armor tape (7) outside described carbon fiber composite core wire (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535764.0A CN104252925A (en) | 2014-10-13 | 2014-10-13 | Combined insulator suspension string of overhead power transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410535764.0A CN104252925A (en) | 2014-10-13 | 2014-10-13 | Combined insulator suspension string of overhead power transmission line |
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| Publication Number | Publication Date |
|---|---|
| CN104252925A true CN104252925A (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410535764.0A Pending CN104252925A (en) | 2014-10-13 | 2014-10-13 | Combined insulator suspension string of overhead power transmission line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550444A (en) * | 2018-05-25 | 2018-09-18 | 华润电力风能（阳江）有限公司 | Single conductor simply connected suspension insulator |
| CN112053812A (en) * | 2020-09-07 | 2020-12-08 | 孙水平 | Spliced ceramic insulator with reinforcing rib structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075642Y (en) * | 2007-06-25 | 2008-06-18 | 四平线路器材厂 | Strain clamp for carbon fiber composite core conducting wire |
| CN201438396U (en) * | 2009-06-29 | 2010-04-14 | 中国电力工程顾问集团公司 | Double I-shaped and V-shaped strain insulator strings for ultra-high voltage substation |
| JP2011065928A (en) * | 2009-09-18 | 2011-03-31 | Ngk Insulators Ltd | Triple tension insulator with lightning arrester |
| CN202711876U (en) * | 2012-07-18 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Suspension flexible jumper composite insulator string for +/- 500 kV common-tower double-circuit line |
| CN202940071U (en) * | 2012-12-14 | 2013-05-15 | 山东电力集团公司电力科学研究院 | Suspension type combination insulator |
| CN204204524U (en) * | 2014-10-13 | 2015-03-11 | 国家电网公司 | A kind of overhead transmission line combined insulator suspension string |
-
2014
- 2014-10-13 CN CN201410535764.0A patent/CN104252925A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201075642Y (en) * | 2007-06-25 | 2008-06-18 | 四平线路器材厂 | Strain clamp for carbon fiber composite core conducting wire |
| CN201438396U (en) * | 2009-06-29 | 2010-04-14 | 中国电力工程顾问集团公司 | Double I-shaped and V-shaped strain insulator strings for ultra-high voltage substation |
| JP2011065928A (en) * | 2009-09-18 | 2011-03-31 | Ngk Insulators Ltd | Triple tension insulator with lightning arrester |
| CN202711876U (en) * | 2012-07-18 | 2013-01-30 | 中国南方电网有限责任公司超高压输电公司 | Suspension flexible jumper composite insulator string for +/- 500 kV common-tower double-circuit line |
| CN202940071U (en) * | 2012-12-14 | 2013-05-15 | 山东电力集团公司电力科学研究院 | Suspension type combination insulator |
| CN204204524U (en) * | 2014-10-13 | 2015-03-11 | 国家电网公司 | A kind of overhead transmission line combined insulator suspension string |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108550444A (en) * | 2018-05-25 | 2018-09-18 | 华润电力风能（阳江）有限公司 | Single conductor simply connected suspension insulator |
| CN112053812A (en) * | 2020-09-07 | 2020-12-08 | 孙水平 | Spliced ceramic insulator with reinforcing rib structure |
| CN112053812B (en) * | 2020-09-07 | 2022-08-02 | 孙水平 | Spliced ceramic insulator with reinforcing rib structure |
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Application publication date: 20141231 |