CN106448952A - Y-shaped strain insulator string and strain tower - Google Patents
Y-shaped strain insulator string and strain tower Download PDFInfo
- Publication number
- CN106448952A CN106448952A CN201610890940.1A CN201610890940A CN106448952A CN 106448952 A CN106448952 A CN 106448952A CN 201610890940 A CN201610890940 A CN 201610890940A CN 106448952 A CN106448952 A CN 106448952A
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- CN
- China
- Prior art keywords
- strain insulator
- anchor support
- insulator string
- yoke plate
- connection gold
- 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
-
- 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
- H01B17/12—Special features of strain insulators
-
- 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
Abstract
The invention discloses a Y-shaped strain insulator string and a strain tower, and belongs to the technical field of power transmission. The Y-shaped strain insulator string comprises two strain insulator strings, a first connecting fitting, a first extension structure, a second connecting fitting and a first triangular linking plate, wherein the first triangular linking plate adopts a triangular structure; the top angle of the first triangular linking plate is connected with the strain tower through the first connecting fitting, the first extension structure and the second connecting fitting in sequence; and two base angles of the first triangular linking plate are connected with the two strain insulator strings respectively. The strain tower comprises a suspending point of the Y-shaped strain insulator string, wherein the Y-shaped strain insulator string is suspended on the suspending point. Through the flexible connection between the Y-shaped strain insulator string and the strain tower, the unbalance tension on the strain tower is lowered, the tower weight of the strain tower is further reduced, and the construction investment is reduced.
Description
Technical field
The present invention relates to technical field of electric power transmission, particularly to a kind of Y type strain insulator string and anchor support.
Background technology
In technical field of electric power transmission, the transmission of electricity of distance is realized by overhead transmission line, overhead transmission line
Generally wire is carried using power transmission tower, power transmission tower is provided with cross-arm, and insulator chain is connected with by cross-arm.
Power transmission tower is generally divided into tangent tower and anchor support, and the insulator chain of tangent tower is connected to immediately below cross-arm, and direction is
Vertical, is solely subjected to the vertical load of wire and wind causes horizontal loading；And the both sides of the insulator chain of anchor support and cross-arm
It is connected, direction is consistent with wire direction, it not only needs to bear the vertically and horizontally load of wire in addition it is also necessary to bear opening of wire
Power load.Anchor support is mainly used in circuit corner, line terminal and is limited area by landform.
In prior art, the insulator chain of anchor support both sides near the side of steel tower pass through connection gold utensil respectively with anchor support
Cross-arm connect, be connected with wire by strain clamp near circuit side.
During realizing the present invention, inventor finds that prior art at least has problems with：
In heavy icing area running, under the operating mode such as uneven icing operating mode and broken string, anchor support is born anchor support
Unbalanced tensile force is larger, and then leads to steel tower weight to increase, and economy declines.
Content of the invention
Lead to tower weight overweight because of force unbalance in order to solve tension tower conducting wire in prior art, economic cost performance is low
Problem, embodiments provides a kind of Y type strain insulator string and anchor support.Described technical scheme is as follows：
On the one hand, there is provided a kind of Y type strain insulator string, described Y type strain insulator string includes：
Two strain insulator-strings, the first connection gold utensil, the first extending structure, the second connection gold utensil and the first triangle yoke plate, described
First triangle yoke plate be shaped as triangle；
The drift angle of described first triangle yoke plate passes sequentially through described first connection gold utensil, described first extending structure and described
Second connection gold utensil is connected with anchor support, and two base angles of described first triangle yoke plate are connected with described two strain insulator-strings respectively.
Optionally, each described strain insulator-string includes：The 3rd connection gold utensil that is sequentially connected, the second extending structure, the 4th even
Connect gold utensil and the second triangle yoke plate, wherein, described 3rd connection gold utensil is connected with the base angle of described first triangle yoke plate, described
Four connection gold utensils are connected with the drift angle of described second triangle yoke plate；
Two base angles of described second triangle yoke plate be sequentially connected respectively two right angle link plates, two ball-eyes, two
Insulator chain, two socket-clevis eyes, yoke plate, two right angle link plates, two adjustment plate, two the 5th connection gold utensils and two strain insulators
Wire clamp.
Optionally, described insulator chain is suspended porcelain insulator string.
Optionally, described adjustment plate is DB type adjustment plate.
Optionally, described ball-eye is the ball head structure being sequentially connected, column structure and loop configuration, described ring junction
Structure is connected with described right angle link plate；
Described ball head structure is connected with described insulator chain.
Optionally, described first extending structure is any one extending in ring, PT type adjustment plate and extension rod；
Described second extending structure is any one extending in ring, PT type adjustment plate and extension rod.
Optionally, described first triangle yoke plate be shaped as isosceles triangle.
On the other hand, there is provided a kind of anchor support, the cross-arm end of described anchor support is provided with described Y type strain insulator
The hanging point of string, described Y type strain insulator string is mounted on described hanging point.
Optionally, described anchor support is single loop dry font anchor support or single loop wine cup shape anchor support or double loop umbrella shape
Anchor support or double loop cydariform anchor support.
Optionally, described anchor support also includes：Wire jumper insulator chain；
Described wire jumper insulator chain upper end is connected with described cross-arm end, and the lower end of described wire jumper insulator chain is mounted with joins
Pouring weight, and isolate two wires and be connected respectively with the strain clamp in two strain insulator-strings of described Y type strain insulator string.
The beneficial effect brought of technical scheme that the present invention provides is：
A kind of Y type strain insulator string and anchor support that the present invention provides, by triangle yoke plate, extending structure and two companies
Connect gold utensil and form the flexible cross-arm end flexible connection hung and go here and there and with anchor support, Y type strain insulator is compensated by flexible string of hanging
The Tension Difference having the both sides of insulator to be caused due to out-of-balance force or wire fracture in string, is reduced anchor support and is born not
Balance tension, and then reduce the tower weight of anchor support, save construction investment.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of Y type strain insulator string structural representation provided in an embodiment of the present invention；
Fig. 2 is a kind of U-shaped hanging ring structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of concrete structure schematic diagram of strain insulator-string provided in an embodiment of the present invention；
Fig. 4 is a kind of structural representation of DB adjustment plate provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of ball-eye provided in an embodiment of the present invention；
Fig. 6 is a kind of partial structural diagram of anchor support provided in an embodiment of the present invention.
Accompanying drawing herein is merged in description and constitutes the part of this specification, shows the enforcement meeting the present invention
Example, and be used for explaining the principle of the present invention together with description.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the present invention provides a kind of Y type strain insulator string, as shown in figure 1, this Y type strain insulator string 0 includes：
Two strain insulator-strings 01, the first connection gold utensil 021, the first extending structure 03, the second connection gold utensil 022 and the first triangle
Yoke plate 05, the first triangle yoke plate 05 be shaped as triangle；The drift angle of the first triangle yoke plate 05 passes sequentially through the first connection gold utensil
021st, the first extending structure 03 and the second connection gold utensil 022 are connected with anchor support, and two base angles of the first triangle yoke plate 05 are respectively
It is connected with two strain insulator-strings 01.
Optionally, the shape of the first triangle yoke plate can be isosceles triangle.Compared to general its structure of triangle yoke plate
More stable.
It should be noted that in embodiments of the present invention it is preferred that above-mentioned first connection gold utensil can for trunnion hanging panel or
U-shaped link, the second connection gold utensil can be U-shaped link, and the first and second connection gold utensils can also be other connection gold utensils, permissible
Selected according to practical situations, the embodiment of the present invention does not limit to this.
Further, U-shaped link can be all a kind of U-shaped link 021 as illustrated in FIG. 2, and this U-shaped link 021 is by U-shaped
Structure 0211 and clamping screw 0212 form, and further, described U-shape structure 0211 can make U-shaped link 021 and as Fig. 1 institute
The first extending structure 03 showing forms flexible connection, and locked by clamping screw 0212, and described extending structure 03 can be for prolonging
Long ring.
In embodiments of the present invention, Y type strain insulator string passes through the first connection gold utensil, the first extending structure, the second company
Connect gold utensil and the connection of the first triangle yoke plate, form flexible extension and go here and there and be connected with the cross-arm end of anchor support, so that strain insulator
In the uneven icing operating mode and broken string operating mode of heavy icing area, to be compensated by flexible extension string has in Y type strain insulator string absolutely tower
The Tension Difference that the both sides of edge are caused due to out-of-balance force or wire fracture, reduces the imbalance that anchor support born and opens
Power, and then reduce the tower weight of anchor support, save construction investment.Engineering practice shows, permissible using Y type strain insulator string
The unbalanced tensile force that common single loop is done font anchor support reduces by 15%～25%, and broken string tension force can reduce more than 20%.With
Conventional strain insulator-string is compared, and in 30mm (millimeter) weight ice-covering area, can subtract anchor support tower weight according to Y type strain insulator string
Little by 5% about, 1 ton of tower weight can be reduced taking 220kV (kilovolt) single loop steel tower as a example.
In sum, a kind of Y type strain insulator string provided in an embodiment of the present invention, by triangle yoke plate, extending structure
Form flexibility with two connection gold utensils and hang string the cross-arm end flexible connection with anchor support, Y type is compensated by flexible extension string resistance to
Open the Tension Difference that the both sides having insulator in insulator chain are caused due to out-of-balance force or wire fracture, reduce anchor support institute
The unbalanced tensile force bearing, and then reduce the tower weight of anchor support, save construction investment.
Specifically, as shown in figure 3, it illustrates a kind of concrete structure diagram of strain insulator-string 01, each strain insulator-string 01 includes：According to
3rd connection gold utensil 0111 of secondary connection, the second extending structure 011, the 4th connection gold utensil 0112 and the second triangle yoke plate 012, its
In, the 3rd connection gold utensil 0111 is connected with the base angle of the first triangle yoke plate (not drawing in Fig. 3), the 4th connection gold utensil 0112 and
The drift angle of two triangle yoke plates 012 connects；Two base angles of the second triangle yoke plate 012 be sequentially connected respectively two right angle link plates 013,
Two ball-eyes, 015, two socket-clevis eyes 016 of 014, two insulator chains, 017, two right angle link plates of yoke plate 013, two
018, two the 5th connection gold utensils 0113 of adjustment plate and two strain clamps 019.Wherein, right angle link plate 013, ball-eye 014,
, all as connection gold utensil, adjustment plate is used for the connection distance of strain insulator-string is entered for socket-clevis eye 016, yoke plate 017 and right angle link plate 013
Row adjustment, strain clamp is used for clamping wire.The selection of the 3rd, the 4th and the 5th connection gold utensil may be referred to above-mentioned first and
The selection of two connection gold utensils, preferably U-shaped link, the embodiment of the present invention will not be described here.
Preferably, above-mentioned insulator chain can be suspended porcelain insulator string.It should be noted that in the embodiment of the present invention
In, insulator chain is made up of multiple insulators, and the selection mode of insulator can have multiple, and embodiment of the present invention here does not limit
Fixed.Example, the selection of insulator can be for composite material insulator or glass insulator also or ceramic insulator permissible
Selected according to practical situations.
Further, in embodiments of the present invention, adjustment plate can be a kind of DB type adjustment plate 018 as shown in Figure 4, its
Surface is provided with connection through hole 0181 and adjusts through hole 0182, connects through hole 0181 and is connected with the right angle link plate of strain insulator-string, adjusts
Through hole 0182 is connected with the 5th connection gold utensil of strain insulator-string.According to National Standard of the People's Republic of China, adjustment plate is code name：
UDC 621.315.6；Numbering：Adjustment plate shown in GB 2330.1-85 standard, adjustment plate type is DB type adjustment plate, its chi
Very little and stress size all may be referred to this standard, and this standard is applied to overhead power line and electric substation's adjustment insulator chain and leads
The adjustment plate of line length.
In embodiments of the present invention, the specifically chosen mode of the first extending structure and the second extending structure have multiple, permissible
Selected according to practical situation, the embodiment of the present invention does not limit to this.Example, the first extending structure and second extends knot
Structure can be for extending ring, any one in PT type adjustment plate and extension rod, it should be noted that the size of PT type adjustment plate and being subject to
Power size may be referred to above-mentioned adjustment plate code name：UDC621.315.6；Numbering：The People's Republic of China (PRC) of GB2330.1-85
National standard, the embodiment of the present invention will not be described here.
Further, as shown in figure 5, it illustrates a kind of ball-eye structural representation provided in an embodiment of the present invention,
Ball-eye is the ball head structure 0141 being sequentially connected, column structure 0142 and loop configuration 0143, loop configuration 0143 with such as
Right angle link plate 013 shown in Fig. 3 connects；Ball head structure 0141 is connected with insulator chain 015 shown in Fig. 3.It should be noted that absolutely
In edge substring, the end of insulator is provided with socket arrangement, and this socket arrangement can with the ball head structure cooperation of ball-eye even
Connect, enhance the reliability of connection.
The embodiment of the present invention provides a kind of anchor support, as shown in fig. 6, to be provided with Y type strain insulator exhausted for cross-arm 1 end of anchor support
The hanging point A of edge substring 0, Y type strain insulator string 0 is mounted on this hanging point A.
Further, anchor support also includes：Wire jumper insulator chain 11；Wire jumper insulator chain 11 upper end is with cross-arm 1 end even
Connect, the lower end of wire jumper insulator chain 11 is mounted with balancing weight 12, and isolates the two of two wires and Y type strain insulator string 0
Strain clamp in individual strain insulator-string connects respectively.Wire jumper insulator chain passes through two wires isolated and corresponding strain clamp
Connect, define triangular structure, increased the steadiness of Y type strain insulator string, control leading of Y type strain insulator string
Line electric clearance, makes work under strong wind operating mode for the anchor support safer.It should be noted that during work, if
When the electric clearance of wire meets the demand that wire is capable of trouble free service, wire jumper insulator chain can be not provided with, to avoid increasing
Unnecessary cost.
It should be noted that the turriform of this anchor support can have multiple, current supply circuit number can also be single loop or double back
Road, concrete tower can be selected according to practical situation, and the embodiment of the present invention does not limit to this, example, this anchor support
Can be single loop dry font anchor support or single loop wine cup shape anchor support or double loop umbrella shape anchor support or double loop cydariform is resistance to
Open tower.
In sum, a kind of Y type strain insulator string provided in an embodiment of the present invention and anchor support, by triangle yoke plate,
Extending structure and two connection gold utensils form the flexible cross-arm end flexible connection hung and go here and there and with anchor support, to be mended by flexible string of hanging
Repay the Tension Difference that the both sides having insulator in Y type strain insulator string are caused due to out-of-balance force or wire fracture, reduce
The unbalanced tensile force that anchor support is born, and then reduce the tower weight of anchor support, save construction investment.
Those skilled in the art can be understood that, for convenience and simplicity of description, the Y type of foregoing description is resistance to
Open the specific work process of insulator chain and anchor support, may be referred to the corresponding process in preceding method embodiment, here is no longer
Repeat.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of Y type strain insulator string is it is characterised in that include：
Two strain insulator-strings, the first connection gold utensil, the first extending structure, the second connection gold utensil and the first triangle yoke plate, described first
Triangle yoke plate be shaped as triangle；
The drift angle of described first triangle yoke plate passes sequentially through described first connection gold utensil, described first extending structure and described second
Connection gold utensil is connected with anchor support, and two base angles of described first triangle yoke plate are connected with described two strain insulator-strings respectively.
2. Y type strain insulator string according to claim 1 it is characterised in that
Each described strain insulator-string includes：The 3rd connection gold utensil that is sequentially connected, the second extending structure, the 4th connection gold utensil and second
Triangle yoke plate, wherein, described 3rd connection gold utensil is connected with the base angle of described first triangle yoke plate, described 4th connection gold utensil with
The drift angle of described second triangle yoke plate connects；
Two base angles of described second triangle yoke plate are sequentially connected two right angle link plates, two ball-eyes, two insulation respectively
Substring, two socket-clevis eyes, yoke plate, two right angle link plates, two adjustment plate, two the 5th connection gold utensils and two resistance to bracing cables
Folder.
3. Y type strain insulator string according to claim 2 it is characterised in that
Described insulator chain is suspended porcelain insulator string.
4. Y type strain insulator string according to claim 2 it is characterised in that
Described adjustment plate is DB type adjustment plate.
5. Y type strain insulator string according to claim 2 it is characterised in that
Described ball-eye is the ball head structure being sequentially connected, column structure and loop configuration, and described loop configuration is straight with described
Angle link plate connects；
Described ball head structure is connected with described insulator chain.
6. Y type strain insulator string according to claim 2 it is characterised in that
Described first extending structure is any one extending in ring, PT type adjustment plate and extension rod；
Described second extending structure is any one extending in ring, PT type adjustment plate and extension rod.
7. Y type strain insulator string according to claim 1 it is characterised in that
Described first triangle yoke plate be shaped as isosceles triangle.
8. a kind of anchor support is it is characterised in that the cross-arm end setting of described anchor support is arbitrary just like claim 1 to 7 described
Y type strain insulator string hanging point, described Y type strain insulator string is mounted on described hanging point.
9. anchor support according to claim 8 is it is characterised in that described anchor support is single loop dry font anchor support or list
Loop wine cup shape anchor support or double loop umbrella shape anchor support or double loop cydariform anchor support.
10. anchor support according to claim 8 or claim 9 it is characterised in that
Described anchor support also includes：Wire jumper insulator chain；
Described wire jumper insulator chain upper end is connected with described cross-arm end, and the lower end of described wire jumper insulator chain is mounted with counterweight
Block, and isolate two wires and be connected respectively with the strain clamp in two strain insulator-strings of described Y type strain insulator string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890940.1A CN106448952B (en) | 2016-10-12 | 2016-10-12 | Y types strain insulator string and anchor support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610890940.1A CN106448952B (en) | 2016-10-12 | 2016-10-12 | Y types strain insulator string and anchor support |
Publications (2)
| Publication Number | Publication Date |
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| CN106448952A true CN106448952A (en) | 2017-02-22 |
| CN106448952B CN106448952B (en) | 2017-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610890940.1A Active CN106448952B (en) | 2016-10-12 | 2016-10-12 | Y types strain insulator string and anchor support |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430088A (en) * | 2020-04-01 | 2020-07-17 | 广东电网有限责任公司 | Insulator string group and strain section |
| WO2022179114A1 (en) * | 2021-02-24 | 2022-09-01 | 江苏神马电力股份有限公司 | Composite cross arm and power transmission tower |
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| CN102810364A (en) * | 2012-07-31 | 2012-12-05 | 中国南方电网有限责任公司超高压输电公司 | Single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines |
| CN203377037U (en) * | 2013-07-19 | 2014-01-01 | 中国电力工程顾问集团西北电力设计院 | High altitude region 330kV AC line duplex strain insulator string |
| GB2513471A (en) * | 2013-03-21 | 2014-10-29 | Ngk Insulators Ltd | Lightning arrester mounting structure in tension insulator assembly |
| CN104240867A (en) * | 2014-09-22 | 2014-12-24 | 国家电网公司 | Double bundle conductor composite strain insulator string |
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2016
- 2016-10-12 CN CN201610890940.1A patent/CN106448952B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810364A (en) * | 2012-07-31 | 2012-12-05 | 中国南方电网有限责任公司超高压输电公司 | Single-suspension-point double-wire-clamp duplex V-shaped porcelain insulator string for +/-500kV common-tower double-circuit lines |
| GB2513471A (en) * | 2013-03-21 | 2014-10-29 | Ngk Insulators Ltd | Lightning arrester mounting structure in tension insulator assembly |
| CN203377037U (en) * | 2013-07-19 | 2014-01-01 | 中国电力工程顾问集团西北电力设计院 | High altitude region 330kV AC line duplex strain insulator string |
| CN104240867A (en) * | 2014-09-22 | 2014-12-24 | 国家电网公司 | Double bundle conductor composite strain insulator string |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111430088A (en) * | 2020-04-01 | 2020-07-17 | 广东电网有限责任公司 | Insulator string group and strain section |
| WO2022179114A1 (en) * | 2021-02-24 | 2022-09-01 | 江苏神马电力股份有限公司 | Composite cross arm and power transmission tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106448952B (en) | 2017-08-11 |
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