CN107564627A - A kind of component comprising support insulator and grading ring - Google Patents
A kind of component comprising support insulator and grading ring Download PDFInfo
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- CN107564627A CN107564627A CN201710655891.8A CN201710655891A CN107564627A CN 107564627 A CN107564627 A CN 107564627A CN 201710655891 A CN201710655891 A CN 201710655891A CN 107564627 A CN107564627 A CN 107564627A
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- support insulator
- grading ring
- insulator
- epimere
- ring
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Abstract
Embodiments of the invention provide a kind of component comprising support insulator and grading ring, are related to field of power, to solve the problems, such as existing support insulator high voltage end non-uniform electric.This, which includes support insulator and the component of grading ring, includes：Support insulator, the support insulator is included along the support insulator length direction, the epimere support insulator and hypomere support insulator connected by the first connection gold utensil, grading ring and racetrack lower uniform pressure ring in racetrack are provided with the top of epimere support insulator, grading ring and circular lower uniform pressure ring in circle are set in the junction of epimere support insulator and hypomere support insulator, wherein circular upper grading ring and circular lower uniform pressure ring are separately positioned on the upper side and lower side of the first connection gold utensil.
Description
Technical field
The present invention relates to field of power, more particularly to a kind of component comprising support insulator and grading ring.
Background technology
For the electric power energy in China based on thermoelectricity and water power, energy source distribution is concentrated mainly on northwest, the large-scale water in southwest
Electric Thermal Power Bases, load center are concentrated mainly on the coastal region in east China.With the lasting, healthy of national economy, stable development, energy
Source will be further exacerbated by with the unbalanced contradiction of power load distributing.Therefore, high voltage, the remote, power transmission mode of Large Copacity are developed
As China's energy and the basic strategy and inevitable choice of power industry construction.
D.C. high voltage transmission due to can at a distance, low-loss, a large amount of electric power energies of the transmission without drop point, in China
Flourished.Core of the converter station valve hall as DC transmission engineering, it is to carry out alterating and direct current during direct current transportation
The place mutually converted, it is internal with numerous equipment such as valve tower, sleeve pipe, gold utensil, pipe mother, support insulator and earthed switches.
Wherein, support insulator is the visual plant in converter station valve hall, be mainly used in converter station valve hall inside points high-tension apparatus (such as every
Leave pass, smoothing reactor), the insulating supporting of pipe bus and be mechanically fixed.
Because each equipment appearance differs, come in every shape so that equipment room electrical connection is complicated, and equipment component bears to hand over directly
Flow superimposed voltage；Because space is limited, it is necessary to support insulator and pipe bus, high-tension apparatus and wall distance in converter station valve hall
It is relatively near, easily influenceed by pipe bus, high-tension apparatus and the earth distribution impedance, cause support insulator high voltage end electric field point
Cloth is uneven, or even produces serious electric field distortion, and pipe mother, connection gold utensil, wire clamp and static contact of grounding switch surface field are abnormal
Becoming also can be very serious, causes violent corona discharge phenomenon；The company of support insulator high-pressure side gold utensil and insulating materials simultaneously
The place of connecing can form weak boundary, and electric field is extremely concentrated at this, be vulnerable to galvanic corrosion damage, accelerate the deterioration of support insulator.Can
See, rationally, in the configuration converter station valve hall of science support insulator grading ring, the electric field for improving support insulator high voltage end divide
Cloth, the long-term safety stable operation for improving converter station valve hall support insulator in DC transmission system is significant.Cause
This, how to improve the Electric Field Distribution of support insulator high voltage end turns into urgent problem to be solved.
The content of the invention
Embodiments of the invention provide a kind of component comprising support insulator and grading ring, to solve support insulator height
The problem of pressure side portion non-uniform electric.
To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
First aspect, there is provided a kind of component comprising support insulator and grading ring, including：
Support insulator, the support insulator are included along the support insulator length direction, pass through the first connection gold
Have the epimere support insulator and hypomere support insulator of connection；
Grading ring and racetrack lower uniform pressure ring in racetrack are provided with the top of the epimere support insulator；
In the junction of the epimere support insulator and the hypomere support insulator, grading ring and circle in circle are set
Shape lower uniform pressure ring, wherein circular upper grading ring and circular lower uniform pressure ring are separately positioned on the upside of first connection gold utensil with
Side.
Optionally, the top of the epimere support insulator is connected with entering valve tower pipe mother, and grading ring is set in the racetrack
Be placed in it is described enter the female upside of valve tower pipe, the racetrack lower uniform pressure ring be arranged at it is described enter the female downside of valve tower pipe.
Optionally, static contact of grounding switch is set at the top of the epimere support insulator.
Optionally, the neutral conductor of first connection gold utensil and converter transformer valve side connects.
Optionally, be provided with the second connection gold utensil at the top of the epimere support insulator, it is described enter valve tower pipe it is female, described
Grading ring and the racetrack lower uniform pressure ring are connected with the second connection gold utensil in racetrack.
Optionally, the support insulator is composite post insulator.
Component provided by the invention comprising support insulator and grading ring, including：Support insulator, the support insulator
Including along support insulator length direction, passing through the epimere support insulator and hypomere post insulator of the connection of the first connection gold utensil
Son；Grading ring and racetrack lower uniform pressure ring in racetrack are provided with the top of epimere support insulator；In epimere post insulator
The junction of son and hypomere support insulator sets circular upper grading ring and circular lower uniform pressure ring, wherein circular upper grading ring and circle
Shape lower uniform pressure ring is separately positioned on the upper side and lower side of the first connection gold utensil.By imitating support insulator Electric Field Distribution
It is true to calculate, it was demonstrated that support insulator grading ring apparatus structure of the invention is reasonable, and shield effectiveness is excellent, can realize to greatest extent
The homogenization of support insulator Electric Field Distribution, it is exhausted to suppress female support insulator high voltage end pipe, the corona of connection gold utensil and pillar
The galvanic corrosion damage of edge overcoat, protects the sealing structure of support insulator high voltage end, effectively improves the change of current in DC transmission system
Stand valve Room support insulator long-term safety stable operation reliability.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of component comprising support insulator and grading ring provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another component comprising support insulator and grading ring provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of structural representation on epimere insulator top provided in an embodiment of the present invention；
Fig. 4 is a kind of epimere insulator provided in an embodiment of the present invention and the structural representation of hypomere insulator junction.
Reference：
The connection gold utensils of 10- first, 11- epimere support insulators, 12- hypomere support insulators, 13- converter transformer valve outgoing lines
Sleeve pipe, grading ring in 111- racetracks, 112- racetrack lower uniform pressure rings, 113- moving contact of grounding switch, 114- enter valve tower pipe mother,
The connection gold utensils of 115- second, the conductors on quad bundleds of 116- first and wire clamp, 117- static contact of grounding switch, press in 121- circles
Ring, 122- circle lower uniform pressure rings, the conductors on quad bundleds of 123- second and wire clamp.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiments of the invention provide a kind of component comprising support insulator and grading ring, as shown in figure 1, branch should be included
The component of post insulator and grading ring includes：Support insulator, the support insulator are included along the support insulator length direction,
The epimere support insulator 11 and hypomere support insulator 12 connected by the first connection gold utensil 10, in epimere support insulator 11
Top be provided with grading ring 111 and racetrack lower uniform pressure ring 112 in racetrack, in epimere support insulator 11 and hypomere pillar
The junction of insulator 12 sets circular upper grading ring 121 and circular lower uniform pressure ring 122.Wherein circular upper grading ring 121 and circle
Shape lower uniform pressure ring 122 is separately positioned on the upper side and lower side of the first connection gold utensil 10.
Exemplary, as shown in Fig. 2 the support insulator epimere support insulator 11 and hypomere support insulator 12 are connected
Composition, it is arranged on the change of current that Y/D connects and becomes (full name：Converter power transformer) 13 position of valve side outlet casing tube.
It should be noted that if support insulator includes one section of support insulator, due to the support insulator length with
Converter station valve hall height correlation, can make it that the length of the support insulator is longer so that its shearing force is larger, anti-seismic performance compared with
Difference, and if the support insulator is included more than two sections of support insulator, the creeping discharge distance of support insulator can be reduced,
And the flange between multistage support insulator can influence insulation distance, support insulator is easily caused to produce creeping discharge.
As shown in figure 3, grading ring 111 is identical with the shape of racetrack lower uniform pressure ring 112 in racetrack, length phase is respectively provided with
Deng and parallel two straight flanges, and with the arc-shaped side for connecting the straight flange of the same side；Wherein, two arc-shaped sides are along straight flange
Vertical line is symmetrical.Such as：Two arc-shaped sides are two equal semicircles of radius, and two semicircles are connected with two straight flanges respectively.
Pressed in circle as shown in figure 4, being set in the junction of epimere support insulator 11 and hypomere support insulator 12
Ring 121 and circular lower uniform pressure ring 122, wherein circular upper grading ring 121 and circular lower uniform pressure ring 122 are separately positioned on the first connection
The upper side and lower side of gold utensil 10.Grading ring 121 is equal with the radius of circular lower uniform pressure ring 122 in circle.
Optionally, as shown in figure 3, the top of epimere support insulator 11 is connected with entering valve tower pipe mother 114, in racetrack
Pressure ring 111 is arranged at into the upside of valve tower pipe mother 114, and racetrack lower uniform pressure ring 112 is arranged at into the downside of valve tower pipe mother 114.
Optionally, static contact of grounding switch 117 is set at the top of epimere support insulator 11.The static contact of grounding switch
117 side walls are installed in converter station valve hall.
It should be noted that due to the presence of the connecting lever of static contact of grounding switch 117, consider static contact of grounding switch 117
When shielding completely, if setting circular grading ring at the top of epimere support insulator, need to design larger-diameter circle
Pressure ring, static contact of grounding switch 117 can just be shielded completely, and the weight of larger-diameter circular grading ring is laid particular stress on, and can be caused
The anti-seismic performance of support insulator is deteriorated；If setting racetrack grading ring at the top of epimere support insulator, can cause
The air gap of the racetrack grading ring and each equipment room, which is more than, is designed as circular grading ring.Therefore, the embodiment of the present invention is upper
Racetrack grading ring is set at the top of section support insulator.
Optionally, the first connection gold utensil 10 is connected with the neutral conductor of converter transformer valve side.The neutral conductor of the converter transformer valve side can
Think conductors on quad bundled, or pipe is female, can be determined according to converter transformer valve side sleeve.As shown in figure 4, the present invention is implemented
In example, the neutral conductor of converter transformer valve side is conductors on quad bundled, and the first connection gold utensil 10 connects with the second conductors on quad bundled and wire clamp 123
Connect.Specifically, the first connection gold utensil 10 is connected by the second quadripartion wire clamp with the second conductors on quad bundled.
Optionally, as shown in figure 3, the top of epimere support insulator 11 is provided with the second connection gold utensil 115, valve tower pipe is entered
Grading ring 111 and racetrack lower uniform pressure ring 112 are connected with the second connection gold utensil 115 on mother 114, racetrack.
Optionally, support insulator is composite post insulator.The composite post insulator can be porcelain core composite sheath
Support insulator, or fiber glass core composite jacket pillar insulator.
In addition, epimere support insulator 11 and hypomere support insulator 12 include upper flange, lower flange, full skirt, sheath
And sealing structure, it can be shielded by the grading ring being arranged on support insulator.
Specifically, the combination of grading ring 111 and racetrack lower uniform pressure ring 112 can shield epimere post insulator in racetrack
Sub 11 top upper flanges and end full skirt, sheath, sealing structure, enter valve tower pipe mother 114,115, the 1st points of the second connection gold utensil
The first conductors on quad bundled and static contact of grounding switch 117 in wire and wire clamp 116 are split, while earthed switch can be ensured
Moving contact 113 smoothly acts, and the moving contact of grounding switch 113 can operationally be packed up.In circle under grading ring 121 and circle
The combination of grading ring 122 can shield the bottom of epimere support insulator 11 lower flange and end full skirt, sheath, sealing structure and
The upper flange and end full skirt, sheath, sealing structure at the top of hypomere support insulator 12, and the first connection gold utensil 10.
It should be noted that grading ring 111 and racetrack lower uniform pressure ring 112 can pass through the second connection gold utensil in racetrack
115 metallic supports included are connected with the upper flange at the top of epimere support insulator 11, and are connected with entering valve tower pipe mother 114, second
Connect gold utensil 115, and the equipotential of static contact of grounding switch 117.Grading ring 121 and circular lower uniform pressure ring 122 can lead in circle
Cross the lower flange and hypomere support insulator 12 of metallic support and epimere support insulator 11 that the first connection gold utensil 10 includes
Upper flange connect, and with the first connection gold utensil 10, the second conductors on quad bundled and the equipotential of wire clamp 123.
In addition it is also necessary to explanation, the component provided in an embodiment of the present invention comprising support insulator and grading ring can
, can also be applied to ± 800kV and the ultra-high voltage converter station valve Room of the above, this hair with the converter station valve hall applied to ± 500kV
The parameter of each grading ring provided in bright embodiment can carry out Electric Field Simulation calculating according to different scenes, determine one group it is optimal
Parameter.
Component provided by the invention comprising support insulator and grading ring, including：Support insulator, the support insulator
Including along support insulator length direction, passing through the epimere support insulator and hypomere post insulator of the connection of the first connection gold utensil
Son；Grading ring and racetrack lower uniform pressure ring in racetrack are provided with the top of epimere support insulator；In epimere post insulator
The junction of son and hypomere support insulator sets circular upper grading ring and circular lower uniform pressure ring, wherein circular upper grading ring and circle
Shape lower uniform pressure ring is separately positioned on the upper side and lower side of the first connection gold utensil.By imitating support insulator Electric Field Distribution
It is true to calculate, it was demonstrated that support insulator grading ring apparatus structure of the invention is reasonable, and shield effectiveness is excellent, can realize to greatest extent
The homogenization of support insulator Electric Field Distribution, it is exhausted to suppress female support insulator high voltage end pipe, the corona of connection gold utensil and pillar
The galvanic corrosion damage of edge overcoat, protects the sealing structure of support insulator high voltage end, effectively improves the change of current in DC transmission system
Stand valve Room support insulator long-term safety stable operation reliability.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
In addition, although used some specific terms in this specification, but these terms are merely for convenience of description, not to this hair
Bright composition any restrictions.
Claims (6)
- A kind of 1. component comprising support insulator and grading ring, it is characterised in that including：Support insulator, the support insulator include, along the support insulator length direction, by the first connection gold utensil connecting The epimere support insulator and hypomere support insulator connect；Grading ring and racetrack lower uniform pressure ring in racetrack are provided with the top of the epimere support insulator；Set in the junction of the epimere support insulator and the hypomere support insulator in circle under grading ring and circle Grading ring, wherein circular upper grading ring and circular lower uniform pressure ring are separately positioned on the upper side and lower side of first connection gold utensil.
- 2. the component according to claim 1 comprising support insulator and grading ring, it is characterised in that the epimere pillar The top of insulator with entering that valve tower pipe is female be connected, in the racetrack grading ring be arranged at it is described enter valve tower pipe mother on the upside of, it is described Racetrack lower uniform pressure ring enters the female downside of valve tower pipe described in being arranged at.
- 3. the component according to claim 1 comprising support insulator and grading ring, it is characterised in that in the epimere branch The top of post insulator sets static contact of grounding switch.
- 4. the component according to claim 1 comprising support insulator and grading ring, it is characterised in that first connection The neutral conductor of gold utensil and converter transformer valve side connects.
- 5. the component according to claim 2 comprising support insulator and grading ring, it is characterised in that the epimere pillar Be provided with the second connection gold utensil at the top of insulator, it is described enter valve tower pipe is female, grading ring and the racetrack in the racetrack Lower uniform pressure ring is connected with the second connection gold utensil.
- 6. support insulator grading ring device according to claim 1, it is characterised in that the support insulator is compound Support insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655891.8A CN107564627A (en) | 2017-08-03 | 2017-08-03 | A kind of component comprising support insulator and grading ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710655891.8A CN107564627A (en) | 2017-08-03 | 2017-08-03 | A kind of component comprising support insulator and grading ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107564627A true CN107564627A (en) | 2018-01-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710655891.8A Pending CN107564627A (en) | 2017-08-03 | 2017-08-03 | A kind of component comprising support insulator and grading ring |
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| Country | Link |
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| CN (1) | CN107564627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534273A (en) * | 2019-08-23 | 2019-12-03 | 无锡爱邦辐射技术有限公司 | Partial pressure type high-voltage insulation strut |
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| CN201048104Y (en) * | 2007-03-07 | 2008-04-16 | 湖南长高高压开关集团股份公司 | 1100kV extra-high voltage ground switch |
| CN202258582U (en) * | 2011-09-13 | 2012-05-30 | 西安交通大学 | Extra-high voltage direct-current field post insulator piezometer ring device |
| CN203521059U (en) * | 2013-10-08 | 2014-04-02 | 江苏祥源电气设备有限公司 | Sectional connected insulator |
| CN203982922U (en) * | 2014-07-24 | 2014-12-03 | 中国电力工程顾问集团西南电力设计院 | 500kV circuit 5000m height above sea level track type grading ring |
| CN206282777U (en) * | 2016-12-01 | 2017-06-27 | 宁夏回族自治区电力设计院 | A kind of disconnecting switch static contact altogether |
| CN207149327U (en) * | 2017-08-03 | 2018-03-27 | 南方电网科学研究院有限责任公司 | A kind of component comprising support insulator and grading ring |
-
2017
- 2017-08-03 CN CN201710655891.8A patent/CN107564627A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201048104Y (en) * | 2007-03-07 | 2008-04-16 | 湖南长高高压开关集团股份公司 | 1100kV extra-high voltage ground switch |
| CN202258582U (en) * | 2011-09-13 | 2012-05-30 | 西安交通大学 | Extra-high voltage direct-current field post insulator piezometer ring device |
| CN203521059U (en) * | 2013-10-08 | 2014-04-02 | 江苏祥源电气设备有限公司 | Sectional connected insulator |
| CN203982922U (en) * | 2014-07-24 | 2014-12-03 | 中国电力工程顾问集团西南电力设计院 | 500kV circuit 5000m height above sea level track type grading ring |
| CN206282777U (en) * | 2016-12-01 | 2017-06-27 | 宁夏回族自治区电力设计院 | A kind of disconnecting switch static contact altogether |
| CN207149327U (en) * | 2017-08-03 | 2018-03-27 | 南方电网科学研究院有限责任公司 | A kind of component comprising support insulator and grading ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110534273A (en) * | 2019-08-23 | 2019-12-03 | 无锡爱邦辐射技术有限公司 | Partial pressure type high-voltage insulation strut |
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