CN202616601U - External series gap arrester - Google Patents
External series gap arrester Download PDFInfo
- Publication number
- CN202616601U CN202616601U CN 201220287221 CN201220287221U CN202616601U CN 202616601 U CN202616601 U CN 202616601U CN 201220287221 CN201220287221 CN 201220287221 CN 201220287221 U CN201220287221 U CN 201220287221U CN 202616601 U CN202616601 U CN 202616601U
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- China
- Prior art keywords
- gap
- conductor
- external series
- spherical conductor
- sphere
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an external series gap arrester. The external series gap arrester comprises a valve arrester body and an external series discharge gap fixedly connected to the upper electrode terminal of the valve arrester body; and the external series discharge gap consists of a gap bracket and two spherical conductors, namely an upper spherical conductor and a lower spherical conductor, which are oppositely and fixedly mounted according to the discharge gap, wherein the upper spherical conductor is a stainless steel spherical conductor, the lower spherical conductor is a fusible alloy spherical conductor, and the spherical radius of the upper spherical conductor is smaller than that of the lower spherical conductor. The technical scheme of the utility model has the advantages that the condition that the gap distance between the lower spherical conductor and the upper spherical conductor is increased as only the lower spherical conductor is subjected to lightning stroke discharge melting at the moment of lightning protection is realized, and unsafe potential hazards for high-voltage power distribution lines caused by the fact that the discharge gap is shortened after lightning protection of the existing external series gap arrester are overcome.
Description
Technical field
The utility model relates to power high voltage distribution line lightning protection device, especially be the discharging gap structure of external series gap lightning arrester.
Background technology
The key structure formation of external series gap lightning arrester mainly contains lightning arrester body and series spark gap, and series spark gap is wherein determining discharge voltage, voltage to distribute and overall performance.Existing series spark gap is by discharging gap requirement fixation group two relative sphere conductors of sphere to be housed and to constitute by the gap support is upper and lower; The sphere that the sphere conductor of being processed by the meltability alloy material has consistent size; The thunderbolt heavy-current discharge punctures moment; Last sphere conductor fusing trickling causes the clearance distance after the thunderbolt to dwindle, and becomes a unsafe factor of power high voltage distribution line behind the lightning protection.
Summary of the invention
The goal of the invention of the utility model is to provide a kind of external series gap lightning arrester that also can avoid after the lightning strike protection gap to dwindle unsafe factor behind changes, the elimination lightning protection that both made.The external series gap lightning arrester technical scheme that the utility model provides; Its major technique content is: a kind of external series gap exchanges lightning arrester; Comprise the valve block arrester body and be fixedly connected on the lightning arrester body extreme outer series connection discharging gap that powers on; The two sphere conductors that outer series connection discharging gap is installed by the discharging gap relative fixed by the upper and lower sphere of gap support constitute; Wherein going up the sphere conductor is stainless steel sphere, and the lower peripheral surface conductor is meltability alloy system sphere, and the spherical radius of last sphere conductor is less than lower peripheral surface conducting sphere radius surface.
In above-mentioned overall technical architecture, for simplifying installation component quantity, last sphere conductor is the stainless steel ball hook bolt.
The disclosed external series gap lightning arrester technical scheme of the utility model; Lightning protection moment has only the fusing of lower peripheral surface conductor lightning discharge; Widen the clearance distance with last sphere conductor, thereby overcome that discharging gap behind the existing external series gap lightning arrester lightning protection dwindles and the insecurity of bringing for the power high voltage distribution line.
Description of drawings
Fig. 1 is a sectional structure chart of this external series gap lightning arrester
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
The utility model discloses external series gap lightning arrester; Mainly constitute by two parts; The one, valve block arrester body 20 be fixedly connected on the lightning arrester body 20 extreme outer series connection discharging gap that powers on; Outer series connection discharging gap is made up of gap support and upper and lower two sphere conductors 21,22 by discharging gap sphere relative fixed assemblage gap support; Lower peripheral surface conductor 22 wherein is meltability alloy system sphere, and last sphere conductor 21 is stainless steel sphere, and goes up the spherical radius of the spherical radius of sphere conductor 21 less than lower peripheral surface conductor 22.In the present embodiment structure, last sphere conductor 21 is designed to the ball stud of stainless steel, the fixing assembling of bolt outer end and top electrode connecting elements, thus simplify mounting structure, assembled component quantity reduces.
Claims (2)
1. an external series gap exchanges lightning arrester; Its composition comprises valve block arrester body (20) and is installed in the external series gap mechanism that lightning arrester body powers on extreme; Described external series gap mechanism by fixed support be fixedly mounted on the relative sphere conductor of the upper and lower discharging gap of fixed support center line and constitute; It is characterized in that last sphere conductor (21) wherein is the stainless steel sphere; Lower peripheral surface conductor (22) is the golden sphere of fusible, and the bulb radius of last sphere conductor is less than lower peripheral surface conducting sphere radius surface.
2. external series gap according to claim 1 exchanges lightning arrester, it is characterized in that sphere conductor (21) is the stainless steel ball hook bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287221 CN202616601U (en) | 2012-06-18 | 2012-06-18 | External series gap arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287221 CN202616601U (en) | 2012-06-18 | 2012-06-18 | External series gap arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202616601U true CN202616601U (en) | 2012-12-19 |
Family
ID=47350271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287221 Expired - Lifetime CN202616601U (en) | 2012-06-18 | 2012-06-18 | External series gap arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202616601U (en) |
-
2012
- 2012-06-18 CN CN 201220287221 patent/CN202616601U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIAONING HUALONG POWER TECHNOLOGY CO., LTD. Free format text: FORMER NAME: LIAONING HUALONG ELECTRIC POWER TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 118303, No. 88, ring road, Zhenxing District, Liaoning, Dandong Patentee after: LIAONING HUALONG ELECTRIC TECHNOLOGY INCORPORATED COMPANY Address before: 118008 Dandong province Zhenxing District, Liaoning Road, No. 277 Patentee before: LIAONING HUALONG ELECTRIC POWER TECHNOLOGY CO., LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121219 |
|
| CX01 | Expiry of patent term |