CN205609296U - Compound post insulators equalizer ring of special high voltage direct current - Google Patents
Compound post insulators equalizer ring of special high voltage direct current Download PDFInfo
- Publication number
- CN205609296U CN205609296U CN201620386117.2U CN201620386117U CN205609296U CN 205609296 U CN205609296 U CN 205609296U CN 201620386117 U CN201620386117 U CN 201620386117U CN 205609296 U CN205609296 U CN 205609296U
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- wall
- ring
- pillar
- grading ring
- insulator
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Abstract
The utility model discloses a compound post insulators equalizer ring of special high voltage direct current, including insulator pillar and spacing ring, the upper and lower both ends of insulator pillar are provided with the equalizer ring respectively, the outer wall of equalizer ring passes through the solid fixed ring of connecting rod fixedly connected with, the outer wall symmetry of equalizer ring is equipped with the equalizer ring pillar, the outer wall of equalizer ring pillar is evenly opened there is the bolt hole, the top of equalizer ring is provided with connecting device, connecting device includes first connecting piece and second connecting piece, the through -hole has all been opened to the outer wall of first connecting piece and second connecting piece, the inner chamber of through -hole is pegged graft and is had the bolt, and bolt tie -rod hole, the current equalizer ring of this compound post insulators equalizer ring of special high voltage direct current contrast can be adjusted the cover and go into the degree of depth, need not to design the equalizer ring of different specifications for the insulator of different specifications, thus the cost is reduced, avoided the cover income degree of depth of equalizer ring against regulation, and lead to compound post insulators's life -span to be reduced.
Description
Technical field
This utility model relates to power transmission network field, is specially a kind of extra-high voltage direct-current composite post insulator grading ring.
Background technology
Typically require on extra-high voltage direct-current composite post insulator and install electric potential gradient control ring, i.e. grading ring additional.The effect of grading ring is to reduce the too high electric potential gradient in some position on composite insulator or gold utensil surface, two ends, the shielding to insulator surface electric field, draws away power frequency arc, reduces end local arc to reduce surface corrosion and the possibility of pollution flashover.
Experiment proves that grading ring cover enters the distance of insulator cluster parachute and improves electric field intensity have the biggest relation with reducing, when the cover of grading ring enters when the least, the electric field intensity of maximum will be born in plug, gold utensil junction at grading ring plane of the opening, if this electric field intensity value exceedes air-breakdown electric field intensity, more serious corona discharge will be there is, it will cause composite electric insulator core bar fracture accident；If but to enter the degree of depth the biggest for grading ring cover, although the voltage's distribiuting of whole insulator becomes uniformly, but he or the dry arcing distance of shortening composite insulator, reduce the lightning impulse flashover voltage of insulator chain.Therefore need regulation suitably to cover when installing grading ring just can make grading ring play regulation electric potential gradient and the effect of shielding electric field into the degree of depth, but existing grading ring is when regulation is covered into the degree of depth, need to change the grading ring of different size, relatively costly, and be difficult to install.
Utility model content
The purpose of this utility model is to provide a kind of extra-high voltage direct-current composite post insulator grading ring, with the problem solving to propose in above-mentioned background technology.
nullFor achieving the above object，This utility model following technical scheme of offer: a kind of extra-high voltage direct-current composite post insulator grading ring，Including insulator pillar and the spacing ring being arranged on insulator pillar two ends，The two ends up and down of described insulator pillar are respectively arranged with grading ring，The outer wall of described grading ring is fixedly connected with retainer ring by connecting rod，And the outer wall laminating of the outer wall of retainer ring and insulator pillar，The outer wall of described grading ring is arranged with grading ring pillar，The outer wall of described grading ring pillar uniformly has bolt hole，Described grading ring be provided above attachment means，And spacing ring is between grading ring and attachment means，Described attachment means includes the first connector and the second connector，The outer wall of described first connector and the second connector is all fitted with the outer wall of insulator pillar，The outer wall of described first connector and the second connector all has through hole，The inner chamber of described through hole is plugged with bolt，And bolt-through bolt hole.
Preferably, the quantity of described bolt hole is no less than two, and linearly arranges at the outer wall of grading ring pillar.
Preferably, the outer wall of described first connector is provided with the first arc groove, and the outer wall of described second connector is provided with second arc groove symmetrical with the first arc groove.
Compared with prior art, the beneficial effects of the utility model are: this extra-high voltage direct-current composite post insulator grading ring, outer wall fixing connection grading ring pillar at grading ring, bolt hole is uniformly had on grading ring pillar, and grading ring pillar is connected with the attachment means bolt being socketed on insulator pillar, when the cover regulating grading ring enters the degree of depth, only bolt need to be plugged in the bolt hole of diverse location, this extra-high voltage direct-current composite post insulator grading ring existing grading ring of contrast can regulate and cover into the degree of depth, the grading ring of different size is designed without the insulator for different size, reduce cost, avoiding the cover of grading ring, to enter the degree of depth against regulation, and cause the service life reduction of composite post insulator.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model Equalized voltage ring construction schematic diagram；
Fig. 3 attachment means structural representation.
In figure: 1 insulator pillar, 2 grading rings, 3 grading ring pillars, 4 bolts, 5 spacing rings, 6 attachment means, 7 bolts hole, 8 connecting rods, 9 first connectors, 10 second connectors, 11 retainer ring, 12 through holes.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1-3，A kind of technical scheme of this utility model offer: a kind of extra-high voltage direct-current composite post insulator grading ring，Including insulator pillar 1 and the spacing ring 5 being arranged on insulator pillar 1 two ends，The two ends up and down of insulator pillar 1 are respectively arranged with grading ring 2，The outer wall of grading ring 2 is fixedly connected with retainer ring 11 by connecting rod 8，And the outer wall laminating of the outer wall of retainer ring 11 and insulator pillar 1，The outer wall of grading ring 2 is arranged with grading ring pillar 3，The outer wall of grading ring pillar 3 uniformly has bolt hole 7，The quantity of bolt hole 7 is no less than two，And linearly arrange at the outer wall of grading ring pillar 3，When the cover regulating grading ring 3 enters the degree of depth，Only bolt 4 need to be plugged in the bolt hole 7 of diverse location，The grading ring 2 of different size is designed without the insulator for different size，Reduce cost，Avoiding the cover of grading ring 2, to enter the degree of depth against regulation，And cause the service life reduction of composite post insulator.
Grading ring 2 be provided above attachment means 6, and spacing ring 5 is between grading ring 2 and attachment means 6, attachment means 6 includes the first connector 9 and the second connector 10, the outer wall of the first connector 9 and the second connector 10 is all fitted with the outer wall of insulator pillar 1, the outer wall of the first connector 9 and the second connector 10 all has through hole 12, the inner chamber of through hole 12 is plugged with bolt 4, and bolt 4 runs through bolt hole 7, the outer wall of the first connector 9 is provided with the first arc groove, the outer wall of the second connector 10 is provided with second arc groove symmetrical with the first arc groove, can be by the outer wall being fixed on insulator pillar 1 more firm for grading ring 2, it is easily installed grading ring 2 simultaneously.
Embodiment the most of the present utility model, for the ordinary skill in the art, being appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can carry out multiple change, revise, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
- null1. an extra-high voltage direct-current composite post insulator grading ring，Including insulator pillar (1) and the spacing ring (5) that is arranged on insulator pillar (1) two ends，It is characterized in that: the two ends up and down of described insulator pillar (1) are respectively arranged with grading ring (2)，The outer wall of described grading ring (2) is fixedly connected with retainer ring (11) by connecting rod (8)，And the outer wall laminating of the outer wall of retainer ring (11) and insulator pillar (1)，The outer wall of described grading ring (2) is arranged with grading ring pillar (3)，The outer wall of described grading ring pillar (3) uniformly has bolt hole (7)，Described grading ring (2) be provided above attachment means (6)，And spacing ring (5) is positioned between grading ring (2) and attachment means (6)，Described attachment means (6) includes the first connector (9) and the second connector (10)，The outer wall of described first connector (9) and the second connector (10) is all fitted with the outer wall of insulator pillar (1)，The outer wall of described first connector (9) and the second connector (10) all has through hole (12)，The inner chamber of described through hole (12) is plugged with bolt (4)，And bolt (4) runs through bolt hole (7).
- A kind of extra-high voltage direct-current composite post insulator grading ring the most according to claim 1, it is characterised in that: the quantity of described bolt hole (7) is no less than two, and linearly arranges at the outer wall of grading ring pillar (3).
- A kind of extra-high voltage direct-current composite post insulator grading ring the most according to claim 1, it is characterized in that: the outer wall of described first connector (9) is provided with the first arc groove, the outer wall of described second connector (10) is provided with second arc groove symmetrical with the first arc groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620386117.2U CN205609296U (en) | 2016-05-03 | 2016-05-03 | Compound post insulators equalizer ring of special high voltage direct current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620386117.2U CN205609296U (en) | 2016-05-03 | 2016-05-03 | Compound post insulators equalizer ring of special high voltage direct current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205609296U true CN205609296U (en) | 2016-09-28 |
Family
ID=56968156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620386117.2U Expired - Fee Related CN205609296U (en) | 2016-05-03 | 2016-05-03 | Compound post insulators equalizer ring of special high voltage direct current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205609296U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172351A (en) * | 2016-12-07 | 2018-06-15 | 中国电力科学研究院 | A kind of grading ring for enhancing transmission circuit insulator string dielectric strength |
-
2016
- 2016-05-03 CN CN201620386117.2U patent/CN205609296U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108172351A (en) * | 2016-12-07 | 2018-06-15 | 中国电力科学研究院 | A kind of grading ring for enhancing transmission circuit insulator string dielectric strength |
| CN108172351B (en) * | 2016-12-07 | 2020-04-24 | 中国电力科学研究院 | Grading ring for enhancing insulation strength of transmission line insulator string |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170503 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |