CN102176363B - Voltage equalizing structure for extra-high-voltage arrester - Google Patents
Voltage equalizing structure for extra-high-voltage arrester Download PDFInfo
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- CN102176363B CN102176363B CN2011100422809A CN201110042280A CN102176363B CN 102176363 B CN102176363 B CN 102176363B CN 2011100422809 A CN2011100422809 A CN 2011100422809A CN 201110042280 A CN201110042280 A CN 201110042280A CN 102176363 B CN102176363 B CN 102176363B
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- lightning arrester
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Abstract
The invention relates to an arrester and discloses a voltage equalizing structure for an extra-high-voltage arrester. The voltage equalizing structure comprises a horizontal tank body and an arrester arranged horizontally along the cavity of the horizontal tank body and fixedly supported on the side wall of the horizontal tank body respectively through three points; the arrester comprises an arrester core and a voltage equalizer arranged at one side of the arrester core; the top of the voltage equalizer is connected with the side outlet of the end part of the horizontal tank body through a high voltage wire outlet device; the voltage equalizer comprises a voltage equalizer shield connected with the arrester core, a voltage equalizing ring and a voltage equalizing arc, wherein the voltage equalizing ring and the voltage equalizing arc are connected by a connecting rod and sleeved on the arrester core and are also sequentially fixed to the lower end of the voltage equalizing shield respectively through connecting rods. The voltage equalizer with such a structure ensures the axial potential distribution of the extra-high-voltage GIS (Gas Insulated Switchgear) arrester along the core, the installment of an insulating support, the connection of the high voltage wire outlet device and ensures the operation reliability of the extra-high-voltage GIS arrester.
Description
Technical field
The present invention relates to lightning arrester, especially a kind of equal laminated structure of extra-high voltage GIS lightning arrester of side outlet.
Background technology
Raising along with the electric pressure of transmission system; GIS lightning arrester height is increasingly high; The core body of lightning arrester Potential distribution vertically must be controlled in 15%; And need insulation column be installed at different points for the extra-high voltage GIS lightning arrester core body, guaranteed the rock-steady structure of lightning arrester core body, and the equal laminated structure of Traditional GIS lightning arrester not reach the CONTROLLED POTENTIAL distribution requirements; Simultaneously the supporting construction of pressure-equalizing device and core body influences each other, and transportation, the operational safety performance of lightning arrester exerted an influence.
Summary of the invention
The object of the present invention is to provide the equal laminated structure of a kind of ultra high voltage (1000KV) lightning arrester; Can solve the ultra high voltage lightning arrester along the axial Potential distribution of core body; And avoid the lightning arrester internal equalizer to conflict with the installation of lightning arrester intermediate insulation support column; Its internal equalizer has reasonable in design, beneficial effect simple in structure, that connection is reliable, easy for installation.
In order to achieve the above object, the present invention adopts following technical scheme to be achieved:
A kind of equal laminated structure of ultra high voltage lightning arrester; Comprise horizontal tank body, reach lightning arrester along horizontal tank body cavity body horizontal arrangement; Lightning arrester is fixedly supported on the horizontal tank body sidewall through 3 respectively; It is characterized in that said lightning arrester comprises lightning arrester core body and be arranged on the pressure-equalizing device of lightning arrester core body one side that the pressure-equalizing device top links to each other with the end side outlet of horizontal tank body through high-voltage terminal device;
Said pressure-equalizing device comprises the grading shield that links to each other with lightning arrester core body, and links to each other and be socketed on the grading ring of lightning arrester core body and all press arc through connecting rod; Grading ring reaches all presses arc to be fixed on the lower end of grading shield respectively successively through connecting rod.
Further aspect of the present invention is:
Said pressure-equalizing device is grading shield-grading ring-all press arc-all press arc combining structure, or is grading shield-half grading ring-all press arc-all press arc combining structure.
Said grading ring is the circulus of sealing or is the semi-annular shape structure, and is connected in an end of grading shield through 3～8 connecting rod levels.
The said arc of all pressing is 1/8～1/4 circular-arc, all presses the two ends of arc to be provided with metal ball; Be connected in an end of grading ring through 1～3 connecting rod level.
The said arc of all pressing is 1～3 pair, all presses arc about lightning arrester core body center symmetric arrangement for every pair.
Said 3 fixed supports are respectively: lightning arrester core body a bit is supported on the horizontal tank body end face; Another is supported in pressure-equalizing device on the other end of horizontal tank body through insulation column; Thirdly on two pairs of lightning arrester core bodies of all pressing between the arc, establish the intermediate insulation pillar, lightning arrester core body is supported on the horizontal tank body sidewall.
The present invention has taked grading shield, grading ring and has all pressed the equal laminated structure of arc combination; The core body Potential distribution vertically that has solved the extra-high voltage GIS lightning arrester is controlled at 15% problem; The insulation column of being convenient to the extra-high voltage GIS lightning arrester core body is simultaneously installed, and guarantees the Electric Field Distribution of each point and the rock-steady structure of core body.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is explained further details.
Fig. 1 is the structural representation of a kind of extra-high voltage GIS lightning arrester of the present invention.
Fig. 2 is the structure chart of grading shield.
Among the figure: 1 is insulation column; 2 is pressure-equalizing device; 3 is high-voltage terminal device; 4 is lightning arrester core body; 5 is grading shield; 6 is connecting rod; 7 is grading ring; 8 for all pressing arc.
Embodiment
With reference to Fig. 1, shown in Figure 2; The equal laminated structure of this ultra high voltage lightning arrester; Comprise horizontal tank body, reach the lightning arrester along horizontal tank body cavity body horizontal arrangement, lightning arrester is fixedly supported on the horizontal tank body sidewall, wherein through 3 respectively; Said lightning arrester comprises lightning arrester core body 4 and is arranged on the pressure-equalizing device 2 of lightning arrester core body 4 one sides that pressure-equalizing device 2 tops link to each other with the end side outlet of horizontal tank body through high-voltage terminal device 3; Said pressure-equalizing device 2 comprises the grading shield 5 that links to each other with lightning arrester core body 4, and links to each other and be socketed on the grading ring 7 of lightning arrester core body 4 and all press arc 8 through connecting rod 6; Grading ring 7 reaches all presses arc 8 to be fixed on an end of grading shield 5 respectively successively through connecting rod 6.
Said pressure-equalizing device 2 is grading shield-grading ring-all press arc-all press arc combining structure, or is grading shield-half grading ring-all press arc-all press arc combining structure.
Above-mentioned grading ring 7 is the circulus or the semi arch structure of sealing, and is connected in an end of grading shield 5 through 3～8 connecting rods 6.It is 1/8～1/4 circular-arc all pressing arc 8, all presses the two ends of arc 8 to be provided with metal ball; Be connected in an end of grading ring 7 through 1～3 connecting rod 6 level.All pressing arc 8 is two sections, is connected in an end of grading ring 7 respectively successively through connecting rod 6.All pressing arc 8 is 1～3 pair, all presses arc 8 about lightning arrester core body 4 center symmetric arrangement for every pair.
Lightning arrester of the present invention is respectively through 3 fixed supports: 4 one of lightning arrester core bodies are supported on the horizontal tank body end face; Another is supported in pressure-equalizing device 2 on the other end of horizontal tank body through insulation column 1; Thirdly on two pairs of lightning arrester core bodies 4 of all pressing between the arc 8, establish intermediate insulation pillar 1, lightning arrester core body 4 is supported on the horizontal tank body sidewall.
Because it is inhomogeneous that the stray capacitance of 4 pairs of tank bodies of lightning arrester core body along the axis direction skewness of lightning arrester core body 4, causes along the axis direction Potential distribution of lightning arrester core body 4, thereby influence the reliability service of lightning arrester.To along lightning arrester core body 4 axis direction stray capacitances problem pockety; The present invention is because the equal laminated structure of having taked grading shield, grading ring and all having pressed arc to make up; This structure is to carrying out different capacitance compensations along lightning arrester core body 4 axis directions; Make the Potential distribution of core body 4 of lightning arrester be controlled in 15%, solved the uneven problem of Potential distribution of the core body 4 of extra-high voltage GIS lightning arrester.
The lightning arrester that has provided different equal laminated structures below is along the axial Potential distribution of core body.The arrester of different pressure-equalizing devices sees Table 1 along the axial Potential distribution of core body.
Table 1 lightning arrester is along the axial Potential distribution of core body
| Sequence number | The type of pressure-equalizing device | Potential distribution/% |
| 1 | Grading shield and annulus combination | 19.7 |
| 2 | Grading shield and semicircular ring combination | 16.1 |
| 3 | Grading shield and 1/4 is all pressed the arc combination | 6.2 |
| 4 | Grading shield and 1/6 is all pressed the arc combination | 7.8 |
| 5 | Grading shield and 1/8 is all pressed the arc combination | 9.4 |
Last table 1 has provided different grading shields and the embodiment that all presses the arc combining structure; And from table 1, can find out; Single grading shield and grading ring combination; Or the combination of grading shield and half grading ring can't be controlled at Potential distribution below 15% fully, has only all to press arc to make up through grading shield and 1/4-1/8 Potential distribution to be controlled at below 15%.The present invention is through grading shield-grading ring-all press arc-all press the arc combination, can realize that the core body Potential distribution vertically of lightning arrester of the present invention is controlled at the purpose below 15% behind or grading shield-half grading ring-all the press arc-all press the arc combination.
Claims (3)
1. the equal laminated structure of a ultra high voltage lightning arrester; Comprise horizontal tank body, reach lightning arrester along horizontal tank body cavity body horizontal arrangement; Lightning arrester is fixedly supported on the horizontal tank body sidewall through 3 respectively; It is characterized in that said lightning arrester comprises lightning arrester core body (4) and be arranged on the pressure-equalizing device (2) of lightning arrester core body (4) one sides that pressure-equalizing device (2) top links to each other with the end side outlet of horizontal tank body through high-voltage terminal device (3);
Said pressure-equalizing device (2) comprises the grading shield (5) that links to each other with lightning arrester core body (4), and links to each other and the grading ring (7) that is socketed on lightning arrester core body (4) reaches and all presses arc (8) through connecting rod (6); Grading ring (7) reaches all presses arc (8) to be fixed on an end of grading shield (5) respectively successively through connecting rod (6);
Said 3 fixed supports are respectively: lightning arrester core body (4) a bit is supported on the horizontal tank body end face; Another point is supported in pressure-equalizing device (2) on the other end of horizontal tank body through insulation column (1); Thirdly on two pairs of lightning arrester core bodies (4) of all pressing between the arc (8), establish intermediate insulation pillar (1), lightning arrester core body (4) is supported on the horizontal tank body sidewall;
The said arc (8) of all pressing is 1/8～1/4 circular-arc, all presses the two ends of arc (8) to be provided with metal ball; All press arc (8) to be connected in an end of grading ring (7) through 1～3 connecting rod (6) level.
2. the equal laminated structure of a kind of ultra high voltage lightning arrester according to claim 1 is characterized in that, said grading ring (7) is the circulus or the semi arch structure of sealing, and is connected in an end of grading shield (5) through 3～8 connecting rods (6).
3. the equal laminated structure of a kind of ultra high voltage lightning arrester according to claim 1 is characterized in that, the said arc (8) of all pressing is 1～3 pair, all presses arc (8) about lightning arrester core body (4) center symmetric arrangement for every pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100422809A CN102176363B (en) | 2011-02-22 | 2011-02-22 | Voltage equalizing structure for extra-high-voltage arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100422809A CN102176363B (en) | 2011-02-22 | 2011-02-22 | Voltage equalizing structure for extra-high-voltage arrester |
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| Publication Number | Publication Date |
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| CN102176363A CN102176363A (en) | 2011-09-07 |
| CN102176363B true CN102176363B (en) | 2012-11-21 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324348A (en) * | 2011-09-20 | 2012-01-18 | 北京科锐配电自动化股份有限公司 | Fuse cylinder |
| CN102385984A (en) * | 2011-09-23 | 2012-03-21 | 上海思源电力电容器有限公司 | Voltage balancer structure used in high voltage power capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117378Y (en) * | 2007-10-30 | 2008-09-17 | 西安电力机械制造公司 | Can-type lightning arrestor |
| CN101383209A (en) * | 2008-10-27 | 2009-03-11 | 清华大学 | Ultra-high voltage can type lightning arrestor without parallel voltage equalizing capacitor |
| CN201298412Y (en) * | 2008-08-21 | 2009-08-26 | 中国西电电气股份有限公司 | Voltage-equalizing device for GIS arrester |
| CN201540788U (en) * | 2009-08-14 | 2010-08-04 | 中国西电电气股份有限公司 | Pressure equalizing device of SF6 tank type seamless metal-oxide surge arrester for GIS |
-
2011
- 2011-02-22 CN CN2011100422809A patent/CN102176363B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117378Y (en) * | 2007-10-30 | 2008-09-17 | 西安电力机械制造公司 | Can-type lightning arrestor |
| CN201298412Y (en) * | 2008-08-21 | 2009-08-26 | 中国西电电气股份有限公司 | Voltage-equalizing device for GIS arrester |
| CN101383209A (en) * | 2008-10-27 | 2009-03-11 | 清华大学 | Ultra-high voltage can type lightning arrestor without parallel voltage equalizing capacitor |
| CN201540788U (en) * | 2009-08-14 | 2010-08-04 | 中国西电电气股份有限公司 | Pressure equalizing device of SF6 tank type seamless metal-oxide surge arrester for GIS |
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| CN102176363A (en) | 2011-09-07 |
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