CN109065290A - The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator - Google Patents
The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator Download PDFInfo
- Publication number
- CN109065290A CN109065290A CN201811039717.1A CN201811039717A CN109065290A CN 109065290 A CN109065290 A CN 109065290A CN 201811039717 A CN201811039717 A CN 201811039717A CN 109065290 A CN109065290 A CN 109065290A
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- China
- Prior art keywords
- parallel connection
- connection gaps
- yoke plate
- duplex
- high altitude
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/04—Chains; Multiple chains
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
- H01B17/10—Fastening of insulator to support, to conductor, or to adjoining insulator by intermediate link
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/48—Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulators (AREA)
Abstract
The invention discloses a kind of alternating current circuit high altitude localities 500kV duplex I type band parallel connection gaps suspension insulators, including the hitch point fitting being connect with tower body, hitch point fitting and insulator chain pass sequentially through the first connection gold utensil, cross yoke plate and the second connection gold utensil are connected, cross yoke plate connects parallel connection gaps top electrode, the lower end of insulator chain is connected with the upper end of triangle yoke plate, triangle yoke plate is fixedly connected with the lower electrode of parallel connection gaps, the lower end of triangle yoke plate is connected by third connection gold utensil with quadripartion yoke plate, four are hung on quadripartion yoke plate for hanging the suspension clamp of transmission pressure；Electrode under parallel connection gaps top electrode and parallel connection gaps is set; power frequency arc can be dredged in lightning flash over; it protects insulator chain from electric arc calcination, improves reclosing success rate, filled up the blank that the high altitude localities transmission line of alternation current 500kV suspension insulator installs parallel connection gaps additional；And it similarly can be suitably used for other low altitude area HVAC power transmission lines.
Description
Technical field
The invention belongs to high-voltage isulation fields, and in particular to a kind of alternating current circuit high altitude localities 500kV duplex I type band is simultaneously
Join gap suspension insulator.
Background technique
Networking project is located in Hengduan mountain range and Nyainqentanglha Shan area, most of height above sea level exists in the middle part of Eastern Tibet in hiding
4000 meters or more, tower position and road maximum height difference are more than 1000 meters, and part tower position operation and maintenance are extremely difficult, it is therefore necessary to improve
The reliability of fitting insulator chain meets the non-maintaining particular/special requirement of HVAC power transmission line hanging wire fitting.Hanging wire fitting is adopted
It is outstanding using band parallel connection gaps I type on the double-circuit suspension tower of O&M difficulty with the wear-resisting non-maintaining material such as 35CoMr, Q345R
Hang down string, and power frequency arc is dredged in lightning flash over, protects insulator chain from electric arc calcination, and improve reclosing success rate.
China is no more than 220kV using the transmission line of electricity overwhelming majority voltage class with parallel connection gaps insulator chain at present,
500kV transmission line of electricity seldom uses band parallel connection gaps insulator chain, the area high altitude localities especially height above sea level 4000m or more
500kV route was from being not used the insulator chain with parallel connection gaps.Therefore, the band 500kV of high altitude localities used for transmission line
Parallel connection gaps insulator chain is those skilled in the art's technical problem urgently to be solved.
Summary of the invention
In order to solve problems of the prior art, the invention discloses a kind of high altitude localities 500kV AC lines
Road duplex I type band parallel connection gaps suspension insulator can satisfy 4000 meters of height above sea level or more regional HVAC power transmission lines and hang
The non-maintaining particular/special requirement of line fitting can satisfy and dredge power frequency arc in lightning flash over, protect insulator chain from electric arc
Calcination improves reclosing success rate.
To achieve the goals above, the technical solution adopted by the present invention is that, a kind of alternating current circuit high altitude localities 500kV is double
Join I type band parallel connection gaps suspension insulator, including the hitch point fitting being connect with tower body, hitch point fitting and insulator chain according to
Secondary the first connection gold utensil, cross yoke plate and the second connection gold utensil of passing through is connected, and cross yoke plate connects parallel connection gaps top electrode, absolutely
The lower end of edge substring is connected with the upper end of triangle yoke plate, and triangle yoke plate is fixedly connected with the lower electrode of parallel connection gaps, triangle yoke plate
Lower end be connected with quadripartion yoke plate by third connection gold utensil, be used to hang transmission pressure there are four suspensions on quadripartion yoke plate
Suspension clamp；The spacing of electrode upper end is less than the dry arc distance of insulator chain under parallel connection gaps top electrode lower end and parallel connection gaps
From.
Parallel connection gaps power on extremely round hook, are made of round steel.
Electrode uses half racetrack under parallel connection gaps.
Electrode is made of coating steel pipe under parallel connection gaps, and the connecting pin width of the runway is less than the straight of bend in runway
Diameter.
The diameter of parallel connection gaps top electrode is less than the diameter of electrode under parallel connection gaps.
Quadripartion yoke plate is equipped with the heavy punch piece for controlling insulator chain swing angle.
Insulator chain uses composite insulator string, and type of attachment is coupled using bulb or bowl head.
Hitch point fitting is connect using EB type trunnion hanging panel fitting with tower body cross-arm.
Suspension clamp uses the anti-corona suspension clamp of handbag type.
Compared with prior art, the invention has the following advantages: being fixed on cross yoke plate for protecting insulation
The parallel connection gaps top electrode of substring is fixed with electrode under the parallel connection gaps for protecting insulator chain on triangle yoke plate, can
Power frequency arc is dredged in lightning flash over, protects insulator chain from electric arc calcination, and improve reclosing success rate, effective protection
Insulator chain has filled up 4000 meters of height above sea level or more the area transmission line of alternation current 500kV suspension insulators and has installed parallel connection gaps additional
Blank；It is high to meet 4000 meters of height above sea level or more areas for the requirement for meeting the High aititude O&M area in hardship transmission line of alternation current 500kV
The requirement for pressing hanging wire fitting in transmission line of alternation current non-maintaining, and it is defeated similarly to can be suitably used for other low altitude area high-voltage alternatings
Electric line.
Further, insulator chain uses composite insulator, and type of attachment is coupled using bulb, bowl head, is had excellent
Resistance to pollution flashover ability.
Further, heavy punch piece is set, swing angle of the present invention under strong wind operating condition can be controlled.
Further, suspension clamp uses the anti-corona suspension clamp of handbag type, has anti-corona performance.
Further, hitch point fitting is connect using EB type trunnion hanging panel fitting with tower body cross-arm.
Further, electrode is made of coating steel pipe under parallel connection gaps, and the connecting pin width of half runway is less than in runway
The diameter of bend is readily produced.
Further, 35CrMo or Q345R that hitch point fitting, connection gold utensil, yoke plate class fitting use, have good
Wear-resisting property can effectively reduce maintenance work amoun.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the left view schematic diagram of Fig. 1；
Wherein: 1 is hitch point fitting, and 2 be the first connection gold utensil, and 3 be cross yoke plate, and 4 be the second connection gold utensil, and 5 is simultaneously
Join gap top electrode, 6 be insulator chain, and 7 be electrode under parallel connection gaps, and 8 be triangle yoke plate, and 9 be third connection gold utensil, and 10 be four
Yoke plate is divided, 11 be heavy punch piece, and 12 be suspension clamp.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
Referring to Figures 1 and 2, the alternating current circuit a kind of high altitude localities 500kV duplex I type band parallel connection gaps suspension insulator
String, including electrode 7 under hitch point fitting 1, insulator chain 6, parallel connection gaps top electrode 5 and parallel connection gaps, hitch point fitting 1 with
Insulator chain 6 passes sequentially through the first connection gold utensil 2, cross yoke plate 3 is connected with the second connection gold utensil 4, and cross yoke plate 3 connects simultaneously
Join gap top electrode 5, the lower end of insulator chain 6 is connected with the upper end of triangle yoke plate 8, electrode 7 under triangle yoke plate 8 and parallel connection gaps
It is fixedly connected, the lower end of triangle yoke plate 8 is connected by third connection gold utensil 9 with quadripartion yoke plate 10, is hanged on quadripartion yoke plate 10
For hanging the suspension clamp 12 of transmission pressure there are four hanging；7 upper end of electrode under 5 lower end of parallel connection gaps top electrode and parallel connection gaps
Spacing be less than insulator chain 6 dry arcing distance.
Duplex I type suspension insulator in the alternating current circuit a kind of high altitude localities 500kV of the present invention, including hitch point gold
Have the 1, first connection gold utensil 2, cross yoke plate 3, the second connection gold utensil 4, parallel connection gaps top electrode 5, insulator chain 6, parallel connection gaps
Lower electrode 7, triangle yoke plate 8, third connection gold utensil 9, quadripartion yoke plate 10, heavy punch piece 11, suspension clamp 12；It is gone here and there using duplex I
Pattern assembles, and the setting of hitch point fitting 1 is on top, using the superior EB type trunnion hanging panel fitting of stress performance, for
The connection of tower body cross-arm；The lower end of hitch point fitting 1 is connected by the first connection gold utensil 2 with the upper end of cross yoke plate 3, cross yoke plate
Parallel connection gaps top electrode 5 is bolted on 3, the lower end of cross yoke plate 3 passes through the second connection gold utensil 4 and insulator chain 6
Upper end be connected, insulator chain 6 use composite insulator, type of attachment using bulb, bowl head be coupled, have excellent resistance to pollution flashover
Ability；The lower end of insulator chain 6 is connected with the upper end of triangle yoke plate 8, is bolted under parallel connection gaps on triangle yoke plate 8
Electrode 7, electrode 7 can dredge power frequency arc in lightning flash under parallel connection gaps top electrode 5 and parallel connection gaps, protect insulator
String improves reclosing success rate from electric arc calcination；7 upper end of electrode under 5 lower end of parallel connection gaps top electrode and parallel connection gaps
Spacing is less than the dry arcing distance of insulator chain 6, and 8 lower end of triangle yoke plate is connected by third connection gold utensil 9 with quadripartion yoke plate 10,
For hanging the suspension clamp 12 of transmission pressure there are four being hung on quadripartion yoke plate 10.
Parallel connection gaps top electrode 5 is circle hook, is made of round steel, and electrode 7 is made of coating steel pipe under parallel connection gaps,
The connecting pin width of the runway is less than the diameter of bend in runway；The diameter of parallel connection gaps top electrode 5 is less than under parallel connection gaps
The diameter of electrode 7.
Connection gold utensil includes the first connection gold utensil 2, the second connection gold utensil 4 and third connection gold utensil 9；Yoke plate includes cross
Yoke plate 3, triangle yoke plate, quadripartion yoke plate 10.
The heavy punch piece 11 for controlling swing angle of the present invention under strong wind operating condition is additionally provided on quadripartion yoke plate 10；It is outstanding
Hardware 1, connection gold utensil, yoke plate class fitting use 35CrMo or Q345R material, have good wear-resisting property, can be effective
Reduce maintenance work amoun.
In the use of the present invention, being first completed the present invention, then the present invention is connected to by hitch point fitting 1
On tower body, then in four suspension clamps 12 that 4 split conductors are each passed through in the present invention.
Above to the band parallel connection gaps pendency insulation of the alternating current circuit high altitude localities 500kV provided by the present invention duplex I type
Substring is described in detail, and applies that a specific example illustrates the principle and implementation of the invention, cannot recognize
Determine a specific embodiment of the invention and be only limitted to this, for those of ordinary skill in the art to which the present invention belongs, not
Be detached from present inventive concept under the premise of, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by
The claims submitted determine scope of patent protection.
Claims (10)
1. a kind of alternating current circuit high altitude localities 500kV duplex I type band parallel connection gaps suspension insulator, it is characterised in that: packet
Include electrode (7) under hitch point fitting (1), insulator chain (6), parallel connection gaps top electrode (5) and parallel connection gaps, hitch point fitting
(1) it passes sequentially through the first connection gold utensil (2), cross yoke plate (3) and the second connection gold utensil (4) with insulator chain (6) to be connected, ten
Couplet plate (3) connects parallel connection gaps top electrode (5), and the lower end of insulator chain (6) is connected with the upper end of triangle yoke plate (8), triangle
Yoke plate (8) is fixedly connected with electrode under parallel connection gaps (7), and the lower end of triangle yoke plate (8) passes through third connection gold utensil (9) and four points
It splits yoke plate (10) to be connected, there are four the suspension clamps (12) for hanging transmission pressure for suspension on quadripartion yoke plate (10)；It is in parallel
The spacing of electrode (7) upper end is less than the dry arcing distance of insulator chain (6) under gap top electrode (5) lower end and parallel connection gaps.
2. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: parallel connection gaps top electrode (5) is circle hook, is made of round steel.
3. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: electrode (7) uses half racetrack under parallel connection gaps.
4. the alternating current circuit high altitude localities 500kV according to claim 3 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: electrode (7) is made of coating steel pipe under parallel connection gaps, and the connecting pin width of the runway is less than runway
The diameter of middle bend.
5. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: the diameter of parallel connection gaps top electrode (5) is less than the diameter of electrode (7) under parallel connection gaps.
6. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: quadripartion yoke plate (10) is equipped with the heavy punch piece (11) for controlling insulator chain (6) swing angle.
7. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: insulator chain (6) uses composite insulator string, and type of attachment is coupled using bulb or bowl head.
8. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: hitch point fitting (1) is connect using EB type trunnion hanging panel fitting with tower body cross-arm.
9. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: suspension clamp (12) uses the anti-corona suspension clamp of handbag type.
10. the alternating current circuit high altitude localities 500kV according to claim 1 duplex I type band parallel connection gaps suspension insulator
String, it is characterised in that: hitch point fitting 1, connection gold utensil and yoke plate are all made of 35CrMo or Q345R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039717.1A CN109065290A (en) | 2018-09-06 | 2018-09-06 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039717.1A CN109065290A (en) | 2018-09-06 | 2018-09-06 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109065290A true CN109065290A (en) | 2018-12-21 |
Family
ID=64760640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811039717.1A Pending CN109065290A (en) | 2018-09-06 | 2018-09-06 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
Country Status (1)
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|---|---|
| CN (1) | CN109065290A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201765890U (en) * | 2010-03-12 | 2011-03-16 | 山东电力研究院 | Parallel gap lightning protection device for overhead transmission line |
| CN102751056A (en) * | 2012-07-24 | 2012-10-24 | 固力发集团有限公司 | Discharge gap device |
| CN202905306U (en) * | 2012-11-27 | 2013-04-24 | 中国南方电网有限责任公司超高压输电公司 | Double suspension-point single wire-clamp duplex I type composite insulator string for +/- 500kV double-circuit line on same tower |
| CN203397793U (en) * | 2013-07-19 | 2014-01-15 | 中国电力工程顾问集团西北电力设计院 | Single-connection I type suspension insulator string for 330kV AC line |
| CN204516500U (en) * | 2015-02-05 | 2015-07-29 | 广州鑫源恒业电力线路器材股份有限公司 | A kind of two suspended compound insulator string |
| CN204516502U (en) * | 2015-02-05 | 2015-07-29 | 广州鑫源恒业电力线路器材股份有限公司 | A kind of double sheet power multiple division electricity transmission line insulator string |
| CN204793957U (en) * | 2015-06-25 | 2015-11-18 | 四平线路器材厂 | Pair is two hangs six division leveling on some L types cluster that dangles |
| CN204966180U (en) * | 2015-09-29 | 2016-01-13 | 江苏双汇孚泰电气有限公司 | Single string of point of V type pair quadripartion cluster that dangles |
| CN206595095U (en) * | 2017-04-07 | 2017-10-27 | 烟台市鲁电线路器材有限公司 | A kind of suspension string |
| CN207116124U (en) * | 2017-09-18 | 2018-03-16 | 永固集团股份有限公司 | A kind of strain insulator-string |
| CN208570224U (en) * | 2018-09-06 | 2019-03-01 | 国家电网有限公司 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
-
2018
- 2018-09-06 CN CN201811039717.1A patent/CN109065290A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201765890U (en) * | 2010-03-12 | 2011-03-16 | 山东电力研究院 | Parallel gap lightning protection device for overhead transmission line |
| CN102751056A (en) * | 2012-07-24 | 2012-10-24 | 固力发集团有限公司 | Discharge gap device |
| CN202905306U (en) * | 2012-11-27 | 2013-04-24 | 中国南方电网有限责任公司超高压输电公司 | Double suspension-point single wire-clamp duplex I type composite insulator string for +/- 500kV double-circuit line on same tower |
| CN203397793U (en) * | 2013-07-19 | 2014-01-15 | 中国电力工程顾问集团西北电力设计院 | Single-connection I type suspension insulator string for 330kV AC line |
| CN204516500U (en) * | 2015-02-05 | 2015-07-29 | 广州鑫源恒业电力线路器材股份有限公司 | A kind of two suspended compound insulator string |
| CN204516502U (en) * | 2015-02-05 | 2015-07-29 | 广州鑫源恒业电力线路器材股份有限公司 | A kind of double sheet power multiple division electricity transmission line insulator string |
| CN204793957U (en) * | 2015-06-25 | 2015-11-18 | 四平线路器材厂 | Pair is two hangs six division leveling on some L types cluster that dangles |
| CN204966180U (en) * | 2015-09-29 | 2016-01-13 | 江苏双汇孚泰电气有限公司 | Single string of point of V type pair quadripartion cluster that dangles |
| CN206595095U (en) * | 2017-04-07 | 2017-10-27 | 烟台市鲁电线路器材有限公司 | A kind of suspension string |
| CN207116124U (en) * | 2017-09-18 | 2018-03-16 | 永固集团股份有限公司 | A kind of strain insulator-string |
| CN208570224U (en) * | 2018-09-06 | 2019-03-01 | 国家电网有限公司 | The high altitude localities alternating current circuit 500kV duplex I type band parallel connection gaps suspension insulator |
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