CN204288963U - Composite insulator string containing size grading ring - Google Patents
Composite insulator string containing size grading ring Download PDFInfo
- Publication number
- CN204288963U CN204288963U CN201420667656.4U CN201420667656U CN204288963U CN 204288963 U CN204288963 U CN 204288963U CN 201420667656 U CN201420667656 U CN 201420667656U CN 204288963 U CN204288963 U CN 204288963U
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- Prior art keywords
- grading ring
- ring
- little
- ring body
- insulator string
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- 239000012212 insulator Substances 0.000 title claims abstract description 48
- 239000002131 composite material Substances 0.000 title claims abstract description 27
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 26
- 239000010931 gold Substances 0.000 claims description 26
- 229910052737 gold Inorganic materials 0.000 claims description 26
- 238000009413 insulation Methods 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 11
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model discloses a kind of composite insulator string containing size grading ring, comprise large, little grading ring and stringinsulator unit, two kinds multi-form large, little grading ring and several stringinsulator units are with the use of composition composite insulator string, greatly described, little grading ring includes ring body, grading ring bracing frame and fixing and locking bolt, greatly, little grading ring is opening shape, opening portion is discharging gap, can not corrode by electric field by available protecting insulator end, and the assemblage gap of two pendulous string isolator can be met, ensure that two grading rings can not cause distortion because of collision in the vibration of wind dance, displacement, thus ensure the safe and reliable operation of insulator and ± 800kV DC power transmission line.The utility model is novel in design, structure is unique; well can either meet ± the operation demand of 800kV DC line, protection insulator end does not corrode by electric field; be convenient to again online replacing and installation; great saving line upkeep cost; guarantee that circuit runs reliably and with long-term, there are very high economic results in society.
Description
Technical field:
The utility model relates to composite insulator string in a kind of extra-high voltage electric transmission and transformation system and pressure-equalizing device thereof, particularly relates to a kind of composite insulator string containing size grading ring, belongs to extreme high voltage technical field.
Background technology:
Composite insulator is a very important equipment in transmission line, and all presses shielding problem to be affect a transmission line security of operation whether key factor.Problems of The Electric Field mainly its Analysis of End Electric Field of composite insulator, the electric field strength on gold utensil is comparatively large, in air oxygen detrition situation, may corona phenomenon be there is in gold utensil, therefore, need the electric field strength managing to reduce hardware end, uniform ring is installed, the electric field strength of hardware end is reduced.Traditional grading ring and composite insulator obviously can not meet the needs of UHV transmission line, particularly can not meet ± the requirement of 800kV direct-current ultra high voltage power grids circuits.
Utility model content:
Technical problem to be solved in the utility model is: provide a kind of composite insulator string containing size grading ring; large and small grading ring with the use of; can not corrode by electric field by available protecting insulator end; and the assemblage gap of two pendulous string isolator can be met; ensure the phenomenon that two grading rings can not cause because of collision being out of shape, being shifted in the vibration of wind dance, thus ensure the safe and reliable operation of insulator and ± 800kV DC power transmission line.
The technical scheme that the utility model is taked for technical solution problem is:
A kind of composite insulator string containing size grading ring, comprise large grading ring, little grading ring and stringinsulator unit, described large grading ring comprises large grading ring ring body, large grading ring bracing frame and large grading ring fixing and locking bolt, described large grading ring ring body is provided with large ring body opening, the ring body end face of described large ring body opening both sides is spherical shape, gap between two ring body end faces is less than or equal to the diameter of 1/8 large ring body, described large grading ring bracing frame is outward extending insulated connecting piece, in different " S " type, described large grading ring fixing and locking bolt and large grading ring bracing frame are positioned at large grading ring ring body side, be fixedly connected with by rivet between described large grading ring bracing frame one end with large grading ring ring body, the other end is bolted on the insulation ball-and-socket gold utensil of composite insulator string side by large grading ring fixing and locking, described little grading ring comprises little grading ring ring body, little grading ring bracing frame and little grading ring fixing and locking bolt, described little grading ring ring body is provided with little ring body opening, the ring body end face of described little ring body opening both sides is spherical shape, gap between two ring body end faces is less than or equal to the diameter of 1/8 little ring body, described little grading ring bracing frame is outward extending insulated connecting piece, in " L " type, described little grading ring fixing and locking bolt and little grading ring bracing frame are positioned at little grading ring ring body side, described " L " type little grading ring bracing frame one end is fixedly connected with between little grading ring ring body, the other end is bolted on the insulation bulb gold utensil of composite insulator string opposite side by little grading ring fixing and locking, described stringinsulator unit comprises insulation bulb gold utensil, little grading ring, insulator string, large grading ring and insulation ball-and-socket gold utensil, and described little grading ring and insulation bulb gold utensil are positioned at the opposite side that the side of insulator string, described large grading ring and insulation ball-and-socket gold utensil are positioned at insulator string.
Described stringinsulator unit is several, and the insulation bulb gold utensil of adjacent two stringinsulator units and insulation ball-and-socket gold utensil match each other and link together; Several stringinsulator units combine formation composite insulator string mutually.
Described composite insulator string side is provided with arcing horn starting rod.
The ring part of described large grading ring and little grading ring selects YL113 aluminum alloy materials to process, and surface finish, prevents point discharge; Described large grading ring bracing frame selects that integral cast steel is zinc-plated to be formed, for large grading ring provides enough strength support; Described little grading ring bracing frame selects high-strength aluminum alloy material to process, for little grading ring provides the support of sufficient intensity.
The utility model by by the large and small grading ring of two kinds of different types with the use of; electrical performance demands and the installation requirement of DC Insulator can be met completely; can not corrode by electric field by available protecting insulator end; and the assemblage gap of two pendulous string isolator can be met; ensure that two grading rings can not cause distortion, displacement because of collision in the vibration of wind dance, thus ensure the safe and reliable operation of insulator and ± 800kV DC power transmission line.
In the utility model, large grading ring and little grading ring are all designed to opening shape, and opening portion is discharging gap, when electric charge savings is too much, and can self-discharge release pressure.Meanwhile, the opening design of two size ring bodies, is conducive to the online installation and removal of grading ring, does not need to dismantle insulator, again lift the replacing that circuit just easily can realize grading ring.
The utility model is novel in design, structure is unique; well can either meet ± 800kV DC line operation demand, protection insulator end does not corrode by electric field; be convenient to again online replacing and installation; great saving line upkeep cost; and excellent material effectively can avoid corrosion; guarantee to run reliably and with long-term, there are very high market application foreground and economic results in society.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of large grading ring in the utility model;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of the medium and small grading ring of the utility model;
Fig. 5 is the right view of Fig. 4.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is further explained and illustrate:
See Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of composite insulator string containing size grading ring, comprise large grading ring 10, little grading ring 20 and stringinsulator unit, described large grading ring 10 comprises large grading ring ring body 1, large grading ring bracing frame 2 and large grading ring fixing and locking bolt 3, large grading ring ring body 1 is provided with large ring body opening 4, the ring body end face of large ring body opening 4 both sides is spherical shape 5, gap between two ring body end faces is less than or equal to the diameter of 1/8 large ring body, large grading ring bracing frame 2 is outward extending insulated connecting piece, in different " S " type, large grading ring fixing and locking bolt 3 and large grading ring bracing frame 2 are positioned at large grading ring ring body 1 side, be fixedly connected with by rivet between large grading ring bracing frame 2 one end with large grading ring ring body 1, the other end is fixed on the insulation ball-and-socket gold utensil 9 of composite insulator string side by large grading ring fixing and locking bolt 3, described little grading ring 20 comprises little grading ring ring body 11, little grading ring bracing frame 21 and little grading ring fixing and locking bolt 31, little grading ring ring body 11 is provided with little ring body opening 41, the ring body end face of described little ring body opening 41 both sides is spherical shape 51, gap between two ring body end faces is less than or equal to the diameter of 1/8 little ring body, little grading ring bracing frame 21 is outward extending insulated connecting piece, in " L " type, little grading ring fixing and locking bolt 31 and little grading ring bracing frame 21 are positioned at little grading ring ring body 11 side, " L " type little grading ring bracing frame 21 one end is fixedly connected with between little grading ring ring body 11, the other end is fixed on the insulation bulb gold utensil 8 of composite insulator string opposite side by little grading ring fixing and locking bolt 31, described stringinsulator unit comprises insulation bulb gold utensil 8, little grading ring 20, insulator string 7, large grading ring 10 and insulation ball-and-socket gold utensil 9, and little grading ring 20 and insulation bulb gold utensil 8 are positioned at the opposite side that the side of insulator string 7, large grading ring 10 and insulation ball-and-socket gold utensil 9 are positioned at insulator string 7, described stringinsulator unit is several, and the insulation bulb gold utensil 8 of adjacent two stringinsulator units and insulation ball-and-socket gold utensil 9 match each other and link together, several stringinsulator units combine formation composite insulator string mutually, composite insulator string side is provided with arcing horn starting rod 6.
Wherein: the ring part of large grading ring 10 and little grading ring 20 selects YL113 aluminum alloy materials to process, and surface finish, prevents point discharge; Large grading ring bracing frame 2 selects that integral cast steel is zinc-plated to be formed, for large grading ring 10 provides enough strength support; Little grading ring bracing frame 21 selects high-strength aluminum alloy material to process, for little grading ring 20 provides the support of sufficient intensity.
In the utility model, large grading ring 10 and little grading ring 20 are all designed to opening shape, and opening portion is discharging gap, when electric charge savings is too much, and can self-discharge release pressure.Meanwhile, the opening design of two size ring bodies, is conducive to the online installation and removal of grading ring, does not need to dismantle insulator, again lift the replacing that circuit just easily can realize grading ring.The utility model is novel in design, structure is unique; well can either meet ± 800kV DC line operation demand, protection insulator end does not corrode by electric field; be convenient to again online replacing and installation; great saving line upkeep cost; and excellent material effectively can avoid corrosion; guarantee to run reliably and with long-term, there are very high market application foreground and economic results in society.
Claims (3)
1. the composite insulator string containing size grading ring, comprise large grading ring (10), little grading ring (20) and stringinsulator unit, it is characterized in that: described large grading ring (10) comprises large grading ring ring body (1), large grading ring bracing frame (2) and large grading ring fixing and locking bolt (3), described large grading ring ring body (1) is provided with large ring body opening (4), the ring body end face of described large ring body opening (4) both sides is spherical shape (5), gap between two ring body end faces is less than or equal to the diameter of 1/8 large ring body, described large grading ring bracing frame (2) is outward extending insulated connecting piece, in different " S " type, described large grading ring fixing and locking bolt (3) and large grading ring bracing frame (2) are positioned at large grading ring ring body (1) side, described large grading ring bracing frame (2) one end is fixedly connected with by rivet with between large grading ring ring body (1), the other end is fixed on the insulation ball-and-socket gold utensil (9) of composite insulator string side by large grading ring fixing and locking bolt (3), described little grading ring (20) comprises little grading ring ring body (11), little grading ring bracing frame (21) and little grading ring fixing and locking bolt (31), described little grading ring ring body (11) is provided with little ring body opening (41), the ring body end face of described little ring body opening (41) both sides is spherical shape (51), gap between two ring body end faces is less than or equal to the diameter of 1/8 little ring body, described little grading ring bracing frame (21) is outward extending insulated connecting piece, in " L " type, described little grading ring fixing and locking bolt (31) and little grading ring bracing frame (21) are positioned at little grading ring ring body (11) side, described " L " type little grading ring bracing frame (21) one end is fixedly connected with between little grading ring ring body (11), the other end is fixed on the insulation bulb gold utensil (8) of composite insulator string opposite side by little grading ring fixing and locking bolt (31), described stringinsulator unit comprises insulation bulb gold utensil (8), little grading ring (20), insulator string (7), large grading ring (10) and insulation ball-and-socket gold utensil (9), and described little grading ring (20) and bulb gold utensil (8) that insulate are positioned at the opposite side that the side of insulator string (7), described large grading ring (10) and ball-and-socket gold utensil (9) that insulate are positioned at insulator string (7).
2. the composite insulator string containing size grading ring according to claim 1, it is characterized in that: described stringinsulator unit is several, the insulation bulb gold utensil (8) of adjacent two stringinsulator units and insulation ball-and-socket gold utensil (9) match each other and link together; Several stringinsulator units combine formation composite insulator string mutually.
3. the composite insulator string containing size grading ring according to claim 2, is characterized in that: described composite insulator string side is provided with arcing horn starting rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667656.4U CN204288963U (en) | 2014-11-11 | 2014-11-11 | Composite insulator string containing size grading ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667656.4U CN204288963U (en) | 2014-11-11 | 2014-11-11 | Composite insulator string containing size grading ring |
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| Publication Number | Publication Date |
|---|---|
| CN204288963U true CN204288963U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420667656.4U Active CN204288963U (en) | 2014-11-11 | 2014-11-11 | Composite insulator string containing size grading ring |
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| Country | Link |
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| CN (1) | CN204288963U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376932A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Composite insulator string with big grading rings and small grading rings |
| CN108831639A (en) * | 2018-06-11 | 2018-11-16 | 山东彼岸电力科技有限公司 | A kind of middle part screening arrangement for folded suspension insulator |
-
2014
- 2014-11-11 CN CN201420667656.4U patent/CN204288963U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104376932A (en) * | 2014-11-11 | 2015-02-25 | 国家电网公司 | Composite insulator string with big grading rings and small grading rings |
| CN108831639A (en) * | 2018-06-11 | 2018-11-16 | 山东彼岸电力科技有限公司 | A kind of middle part screening arrangement for folded suspension insulator |
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| GR01 | Patent grant |