CN207425492U - A kind of star-like combined insulator string - Google Patents
A kind of star-like combined insulator string Download PDFInfo
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- CN207425492U CN207425492U CN201721555895.0U CN201721555895U CN207425492U CN 207425492 U CN207425492 U CN 207425492U CN 201721555895 U CN201721555895 U CN 201721555895U CN 207425492 U CN207425492 U CN 207425492U
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- insulation arm
- arm
- insulator string
- insulation
- star
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- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of star-like combined insulator strings, are included in the upper insulation arm with same public point, lower insulation arm, left insulation arm and right insulation arm；Another endpoint of the upper insulation arm is mounted with transmission tower cross-arm, and the lower insulation arm other end connection counterweight, the upper insulation arm and lower insulation arm keep overhanging arrangement on same vertical axis；The left insulation arm and the vertical axis of right insulation arm more than insulation arm and lower insulation arm are symmetrical, by wire clamp gold utensil connecting wire, the conducting wire of the left insulation arm and right insulation arm both sides forms current channel by wire jumper for the other end of the left insulation arm and the other end of right insulation arm.The utility model can effectively improve insulator chain creepage distance and dry arcing distance, reduce insulator contamination, ice dodges, bird pest risk；Conducting wire distance to the ground is improved, the external force such as tree bamboo short, construction machinery short is reduced and destroys risk；And reform strengthening is at low cost, and the cycle is short.
Description
Technical field
The utility model belongs to electric power project engineering field, and in particular to a kind of star-like combined insulator string.
Background technology
Contain a large amount of conductive materials in filthy and icing, insulator is difficult to recover in a short time after pollution flashover or the life of ice shwoot
Insulation performance, therefore exchange reclosing or direct current and restart and be difficult to success, it is meant that power off time is extended, and not only causes to power
Loss, and seriously affect the production and living of people.The extensive pollution flashover of North China makes in 1.2 hundred million people power supply at the beginning of such as 2001
Disconnected, the extensive ice sudden strain of a muscle in southern area causes thousands of line outages at the beginning of 2008, and then causes massive blackout.After 2010,
China's power grid generally takes raising design standard to prevent pollution flashover and ice from dodging, and works well in new construction, but annual build is thrown
Money need to increase tens billion of members；To the transmission line of electricity that early stage builds, design standard is relatively low to make external insulating level inadequate natural endowment, at any time face
Face flashover risk.These old overhead line structures are short, insulation configuration is low, and in autumn and winter, these equipment are transported as power grid security
Capable weak spot once running into condensation, drizzle or low temperature sleety weather, faces pollution flashover, the risk that ice dodges, even results at any time
Large area has a power failure for a long time.To solve the problems, such as the antifouling work of old circuit and anti-ice-flashing, researcher and engineer propose all
Multi-scheme, but it is primarily present problems in applying：
1) creepage distance and dry arcing distance can be increased simultaneously by directly increasing insulator the piece number in pendency I strings end, but
By limitations such as conducting wire distance to the ground, increase string length with may causing line apart from deficiency, therefore most circuits are difficult to directly increase absolutely
Edge；
2) single hanging point I strings are difficult to directly be changed to the V strings of double hanging point, have even if making V into and going here and there its scope for improving icing flashover voltage
Limit cannot still be met the requirements under the conditions of serious icing, filth；
3) use interleaves arrangement can obstruct sleet bridge joint to a certain extent, bright in light icing and icing initial performances
It is aobvious, if but do not increase string length, it is smaller to improve icing flashover voltage scope；
4) anti-icing insulator can obstruct sleet bridge joint to a certain extent, but because anti-icing insulator umbrella is silicon rubber material
Material, it is therefore only effective in light icing and icing initial stage, in big-eared under its full skirt when re-covering ice lose anti-icing advantage.
5) rebuild using new standard then with high costs.
Utility model content
The utility model solve the technical issues of be：For existing for existing old circuit antifouling work and anti-ice-flashing transformation
Defect provides a kind of new star-like combined insulator string, and the pendency I type insulator chains of old circuit straight line pole are changed
It makes, can not only improve insulator chain creepage distance, improve conducting wire distance to the ground, construction investment can also be substantially reduced, shortened
It transforms the cycle and reduces security management and control risk.
The utility model adopts the following technical solution realizes：
Star-like combined insulator string is included in the upper insulation arm 1 with same public point, lower insulation arm 2, left insulation arm
3 and right insulation arm 4；
Another endpoint of the upper insulation arm 1 is mounted with transmission tower cross-arm 8, and lower 2 other end of the insulation arm connection is matched somebody with somebody
5 are weighed, the upper insulation arm 1 and lower insulation arm 2 keep overhanging arrangement on same vertical axis；
The left insulation arm 3 and the vertical axis of more than 4 insulation arm 1 of right insulation arm and lower insulation arm 2 are symmetrical, described
The other end of left insulation arm 3 and the other end of right insulation arm 4 pass through 61 connecting wire 6 of wire clamp gold utensil, the left insulation arm 3 and the right side
The conducting wire 6 of 4 both sides of insulation arm forms current channel by wire jumper.
Further, the public point of the upper insulation arm 1, lower insulation arm 2, left insulation arm 3 and right insulation arm 4 is connected to
On one yoke plate 7, the upper end of the yoke plate 7 is mounted by the lower end of socket-clevis eye 71 and upper insulation arm 1, the lower end of the yoke plate 7,
Left end and right end pass through the upper of right angle hanging plate 72 and ball-eye 73 and lower insulation arm 2, left insulation arm 3 and right insulation arm 4 respectively
End mounting.
In the star-like combined insulator string of the utility model, of length no more than hanging I strings insulation of the upper insulation arm 1
The hanging length of substring.
Preferably, the upper insulation arm 1 is cap and pin type suspension insulator string, by homotype cap and pin type suspension insulator or big umbellule
The cap and pin type suspension insulator that footpath is differed interleaves composition.
Further, the left insulation arm 3 is equal with the length and creepage distance of right insulation arm 4, and the left insulation
The sum of length of arm 3 and upper insulation arm 1 and creepage distance be greater than or equal to pendency I insulator string strings length and creepage distance it
It is more than the length of pendency I insulator string strings with the sum of, the lower insulation arm 2 and the length of upper insulation arm 1 and creepage distance and climbs
The sum of electrical distance.
Preferably, the lower insulation arm 2, left insulation arm 3 and right insulation arm 4 are answered using cap and pin type suspension insulator string or stick
Close insulator chain.
The beneficial effects of the utility model are：
1), by four groups of combined insulator strings in star arrangement, conducting wire is connected from the left and right insulation arm of both sides, improved
Insulator chain creepage distance and dry arcing distance reduce insulator contamination, ice dodges, bird pest risk；
2), conducting wire is connected from the outer end of left insulation arm with right insulation arm, raising conducting wire distance to the ground, reduction tree bamboo short,
The external force such as construction machinery short destroy risk；
3), directly existing hanging insulator chain can be transformed, reduce construction investment, avoid the great number of reconstruction into
This；
4) it, can directly be mounted after the good insulator chain of bottom surface over-assemble, shorten the transformation cycle；
5) security management and control risk, is reduced.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Description of the drawings
Fig. 1 is the structure diagram of the star-like combined insulator string in embodiment.
Figure label：The upper insulation arms of 1-, 11- right angles hanging plate, insulation arm under 2-, the left insulation arms of 3-, the right insulation arms of 4-, 5- match somebody with somebody
Weight, 6- conducting wires, 61- wire clamp gold utensils, 7- yoke plates, 71- socket-clevis eyes, 72- right angles hanging plate, 73- ball-eyes, 8- cross-arms.
Specific embodiment
Embodiment
Referring to Fig. 1, it is illustrated that in star-like combined insulator string be the utility model preferred embodiment, specifically include insulation
Arm 1, lower insulation arm 2, left insulation arm 3, right insulation arm 4, counterweight 5, yoke plate 7 etc..Upper insulation arm 1, lower insulation arm 2, left insulation arm 3
A public point is respectively provided with right insulation arm 4, and passes through the public point in star-like connection.
Wherein, upper insulation arm 1 uses cap and pin type suspension insulator string, and homotype dialer shape suspension insulator can be used in practical application
The cap and pin type suspension insulator that son or big umbellule footpath are differed interleaves composition, and the lower end of upper insulation arm 1 is public point, and endpoint leads to thereon
It crosses ball-eye and right angle hanging plate 11 is articulated in power transmission rod cross-arm 8, transmission of electricity is articulated in for combined insulator string integrally to be overhang
On bar.
Two kinds of forms of cap and pin type suspension insulator string or bar-shaped composite insulator can be used in lower insulation arm 2, are hanged when using dish type
It during formula insulator chain, is made of homotype cap and pin type suspension insulator, wherein the upper end of lower insulation arm 2 is public point, by this
The lower end of public point and upper insulation arm 1 mounts, the lower end connection counterweight 5 of lower insulation arm 2, keeps upper exhausted by increasing counterweight 5
Edge arm 1 and lower insulation arm 2 keep overhanging arrangement on same vertical axis.
Left insulation arm 3 and right insulation arm 4 use cap and pin type suspension insulator string or bar-shaped composite insulator string, insulator chain
Upper end is public point, and left insulation arm 3 and right insulation arm 4 are articulated in upper insulation arm 1 and lower insulation arm 2 by public point respectively
Vertical axis both sides, for the other end of left insulation arm 3 and right insulation arm 4 respectively by 61 connecting wire 6 of wire clamp gold utensil, both sides are defeated
Left insulation arm 3 and right insulation arm 4 to both sides tensioning, are made left insulation arm 3 and right insulation arm 4 be symmetrically distributed in absolutely by the conducting wire sent
The vertical axis both sides of edge arm 1 and lower insulation arm 2, meanwhile, the conducting wire 6 of 4 both sides of left insulation arm 3 and right insulation arm passes through wire jumper shape
Into current channel, while wire jumper is connected by wire clamp gold utensil with the bottom of lower insulation arm 2.
Specifically, upper insulation arm 1, lower insulation arm 2, the public point of left insulation arm 3 and right insulation arm 4 are commonly connected to join
On plate 7, yoke plate 7 uses rhombic plate, and four angles of yoke plate 7 are connected respectively four groups of insulation arms and set connecting hole, wherein, yoke plate
7 upper end connecting hole is mounted by the common port of socket-clevis eye 71 and upper insulation arm 1, the company of the lower end of yoke plate 7, left end and right end
Hole is connect respectively by right angle hanging plate 72 and the common port of the connection of ball-eye 73 lower insulation arm 2, left insulation arm 3 and right insulation arm 4.
The present embodiment is mainly used for the insulator transformation of old electric power line pole tower, and improved upper insulation arm 1 is less than original
The half for I insulator string string length of dangling, left insulation arm 3 and right insulation arm 4 are symmetric and length and creepage distance
Equal, the sum of length and creepage distance of left insulation arm 3 and upper insulation arm 1 are greater than or equal to the length of former pendency I insulator string strings
The sum of degree and creepage distance, the sum of lower insulation arm 2 and upper 1 length of insulation arm and creepage distance are more than former pendency I insulator string strings
Length and the sum of creepage distance；Upper insulation arm 1 and lower insulation arm 2 in same axis and keep pendency arrangement, left 3 He of insulation arm
Right insulation arm 4 is equal with the angle of upper insulation arm 1 respectively and in the same plane.Left insulation arm 3, right insulation arm 4 and lower insulation
Arm 2 freely can increase string length and creepage distance according to actual needs.
For example, as the adjacent two bases straight line pole pendency I insulator string strings of certain 110 KV line are transform to the star of the present embodiment
In type combined insulator string, 110 KV line straight line pole pendency I insulator strings string was that 7 LXY-70/146 glass are exhausted originally
Edge forms, and after transforming the star-like combined insulator string of the present embodiment as, upper insulation arm 1 uses a piece of FC100D/146 deep bids footpath
Aerodynamic type insulator and two panels LXY-70/146 glass insulators series connection composition, left insulation arm 3 use six LXY-70/
146 glass insulators series connection composition, right insulation arm 4 and left insulation arm 3 are identical and symmetrical, and lower insulation arm 2 uses six LXY-70/
146 glass insulators series connection composition, weight 5 assemble the bulb used using commercially available Qin family electric appliance ZC-18 and mating fitting
Using the electric armour clamp with the mating tonnages of insulator LXY-70/146, conducting wire uses for link, right angle hanging plate, socket-clevis eye, yoke plate
LGJ-300 shaped steel core aluminum stranded wires, wire clamp gold utensil use the T-shaped wire clamp mating with conducting wire.
It is on probation through manufacturing experimently by improved above-mentioned star-like combined insulator string, it is proved to work well, it is securely and reliably, complete
The full design requirement for reaching former 110 KV line.
It the above is only the one of which specific embodiment of the utility model, not only the scope of protection of the utility model and office
It is limited to above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should
When pointing out, for those skilled in the art, several under the premise of the utility model principle is not departed from change
Into and retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of star-like combined insulator string, it is characterised in that：Be included in the upper insulation arm (1) with same public point, under
Insulation arm (2), left insulation arm (3) and right insulation arm (4)；
Another endpoint of the upper insulation arm (1) is mounted with transmission tower cross-arm (8), lower insulation arm (2) other end connection
Counterweight (5), the upper insulation arm (1) and lower insulation arm (2) keep overhanging arrangement on same vertical axis；
The left insulation arm (3) and the vertical axis of right insulation arm (4) more than insulation arm (1) and lower insulation arm (2) are symmetrical,
The other end of the left insulation arm (3) and the other end of right insulation arm (4) are described by wire clamp gold utensil (61) connecting wire (6)
The conducting wire (6) of left insulation arm (3) and right insulation arm (4) both sides forms current channel by wire jumper.
2. a kind of star-like combined insulator string according to claim 1, the upper insulation arm (1), lower insulation arm (2), a left side
The public point of insulation arm (3) and right insulation arm (4) is connected on a yoke plate (7), and the upper end of the yoke plate (7) is hung by bowl head
Plate (71) and the lower end of upper insulation arm (1) mount, and lower end, left end and the right end of the yoke plate (7) pass through right angle hanging plate respectively
(72) mounted with the upper end of ball-eye (73) and lower insulation arm (2), left insulation arm (3) and right insulation arm (4).
3. a kind of star-like combined insulator string according to claim 1 or 2, the upper insulation arm (1) it is of length no more than
Overhang the hanging length of I insulator string strings.
4. a kind of star-like combined insulator string according to claim 3, the upper insulation arm (1) is cap and pin type suspension insulator
String, the cap and pin type suspension insulator to be differed by homotype cap and pin type suspension insulator or big umbellule footpath, which interleaves, to be formed.
5. a kind of star-like combined insulator string according to claim 4, the left insulation arm (3) and right insulation arm (4)
Length and creepage distance are equal, and the sum of length of the left insulation arm (3) and upper insulation arm (1) and creepage distance be more than or
Equal to the length and the sum of creepage distance of pendency I insulator string strings, the length of the lower insulation arm (2) and upper insulation arm (1) and
The sum of creepage distance is more than the sum of length and creepage distance of pendency I insulator string strings.
6. a kind of star-like combined insulator string according to claim 5, the lower insulation arm (2), left insulation arm (3) and the right side
Insulation arm (4) uses cap and pin type suspension insulator string or bar-shaped composite insulator string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555895.0U CN207425492U (en) | 2017-11-20 | 2017-11-20 | A kind of star-like combined insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721555895.0U CN207425492U (en) | 2017-11-20 | 2017-11-20 | A kind of star-like combined insulator string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207425492U true CN207425492U (en) | 2018-05-29 |
Family
ID=62303609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721555895.0U Active CN207425492U (en) | 2017-11-20 | 2017-11-20 | A kind of star-like combined insulator string |
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| Country | Link |
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| CN (1) | CN207425492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946004A (en) * | 2017-11-20 | 2018-04-20 | 国网湖南省电力有限公司 | Star-like combined insulator string |
-
2017
- 2017-11-20 CN CN201721555895.0U patent/CN207425492U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946004A (en) * | 2017-11-20 | 2018-04-20 | 国网湖南省电力有限公司 | Star-like combined insulator string |
| CN107946004B (en) * | 2017-11-20 | 2023-12-01 | 国网湖南省电力有限公司 | Star-shaped combined insulator string |
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