CN203839704U - Lightning arrester - Google Patents
Lightning arrester Download PDFInfo
- Publication number
- CN203839704U CN203839704U CN201420260955.6U CN201420260955U CN203839704U CN 203839704 U CN203839704 U CN 203839704U CN 201420260955 U CN201420260955 U CN 201420260955U CN 203839704 U CN203839704 U CN 203839704U
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- CN
- China
- Prior art keywords
- lightning arrester
- drainage ball
- ball group
- current limiting
- limiting element
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Abstract
The utility model relates to the power lightning protection field, and particularly relates to a lightning arrester. The lightning arrester comprises a lightning arrester ceramic shell and a lightning arrester head part. The lightning arrester head part is arranged on an overhead cable via a gasket, a nut and a fastening nut and conducted with the cable. The lightning arrester ceramic shell is internally provided with current limiting elements stacked upwardly from the bottom part. The outer part of the lightning arrester ceramic shell is umbrella skirts. The lower part of the lightning arrester ceramic shell is connected with a lower connection column, and the lower connection column is connected with a grounding plate. The lightning arrester also comprises a wire current guiding ball group guided out from the lower end surface of the lightning arrester head part and a current limiting element current guiding ball group guided out from the upper end surface of the current limiting elements. The wire current guiding ball group and the current limiting element current guiding ball group both comprise two or more than two current guiding balls, and the current guiding balls of the wire current guiding ball group and the current guiding balls of the current limiting element current guiding ball group are in one-to-one correspondence.
Description
Technical field
The utility model relates to electric power lightning protection field, particularly, relates to a kind of lightning arrester.
Background technology
In overhead insulating electric line, thunderbolt can cause insulator explosion, wire dropping, broken string accident, installing lightning arrester additional is a kind of effectively lightning protection measures, in lightning arrester, there is at present a kind of flow diverter gap that relies on to realize normal operational insulation, it is lightning-arrest that in thunderbolt situation, gap breakdown draws inflow place realization, but this lightning arrester to gap clearance from stability requirement higher, when thunderbolt, put a generation flashover, instantaneous large-current when flashover passes through flow diverter, repeatedly thunderbolt likely damages flow diverter, cause working gap distance to change, if being less than safe distance, gap likely cause residual voltage to be difficult to eliminate, so that can not be in thunderbolt normal recovery and protection effect afterwards, cause power frequency continued flow, cause the loss of power accident.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of lightning arrester; this lightning arrester can disperse discharge space; the large electric current that when balanced thunderbolt, flow diverter is born; greatly reduce the risk that working clearance variation causes damaging variation; simultaneously; can also accelerate the velocity of discharge of electric arc, after making to be struck by lightning, lightning arrester can recover to avoid power frequency continued flow from protection action faster.
The technical scheme in the invention for solving the above technical problem is: described lightning arrester comprises lightning arrester ceramic package, lightning arrester head, described lightning arrester head is with passing through pad, nut, clamp nut be installed on aerial cable and and cable between conducting, in described lightning arrester ceramic package, there is the current limiting element upwards stacking from bottom, described lightning arrester ceramic package outside is full skirt, described lightning arrester ceramic package bottom is connected with lower joint pin, described lower joint pin is connected with ground plate, full skirt and joint pin be the known means for anti-filth and ground connection for lightning arrester designs, described lightning arrester also comprises the current limiting element drainage ball group that draw the wire drainage ball group that draws lightning arrester head lower surface and current limiting element upper surface, described wire drainage ball group and current limiting element drainage ball group include two or more drainage balls, the drainage ball of described wire drainage ball group is corresponding one by one with the drainage ball of described current limiting element drainage ball group, the drainage ball that is wire drainage ball group 14 is identical with the drainage ball number of described current limiting element drainage ball group 15, bulb is corresponding one by one one on the other.
Further, described wire drainage ball group, described current limiting element drainage ball group are being circularly and evenly distributed in the edge of described lightning arrester head lower surface, described current limiting element upper surface respectively.
Further, the number that described wire drainage ball group and current limiting element drainage ball group comprise drainage ball is at 2,3 or 4.
Further, axially the tilting to described lightning arrester ceramic package direction of described wire drainage ball group and described current limiting element drainage ball group, the inclination angle between axially axial with lightning arrester is at 30-45 degree.
Further, in the clearance distance between described wire drainage ball group and described current limiting element drainage ball group and drainage ball group, the quantity of drainage ball is inverse relationship, quantity more multiple spurs from close to more.
Further, the material of described wire drainage ball group and described current limiting element drainage ball group is aluminium alloy.
To sum up, the beneficial effects of the utility model are:
This lightning arrester replaces single drainage ball design can disperse discharge space by drainage ball group; the large electric current that when balanced thunderbolt, flow diverter is born; greatly reduce to avoid the working clearance to cause the risk of damaging variation; simultaneously; can also accelerate the velocity of discharge of electric arc, after making to be struck by lightning, lightning arrester can recover to avoid power frequency continued flow from protection action faster.The drainage ball that outward flange even circumferential is arranged simultaneously can be expanded discharge space, balanced discharge electric current to greatest extent, axially outwards topples over and is more conducive to accelerate the velocity of discharge, reduces residual voltage, avoids power frequency continued flow.
Brief description of the drawings
Fig. 1 is that the drainage nodule number of drainage ball group is that the lightning arrester of 2 is in drainage ball group place partial schematic sectional view;
Fig. 2 is the wire drainage ball group that comprises four drainage balls distribution map in lightning arrester head lower surface.
Mark and corresponding parts title in accompanying drawing:
Joint pin 2-aerial cable 3-ground plate under 11-lightning arrester ceramic package 12-lightning arrester head 13-full skirt 14-wire drainage ball group 15-current limiting element drainage ball group 16-.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done to detailed description further, but execution mode of the present utility model is not limited to this.
The kind of the utility model lightning arrester belongs to gap lightning arrester, as shown in Figure 1, described lightning arrester comprises lightning arrester ceramic package 11, lightning arrester head 12, described lightning arrester ceramic package 11 is structure as a whole with lightning arrester head 12, described lightning arrester head 12 is with passing through pad, nut, clamp nut be installed on aerial cable 2 and and cable between conducting, lightning arrester head 12 electrically contacts by puncture or non-puncture and aerial condutor, electrically contact mode and belong to means known in this field, in described lightning arrester ceramic package 11, there is the current limiting element upwards stacking from bottom, the current limiting element essence stacking is pressure cell, when circuit is normally worked, On current only has a microampere rank, disruptive discharge when thunderbolt, thunder-strike current is introduced to the earth, described lightning arrester ceramic package outside is full skirt 13, the curvilinear structures of full skirt 13 plays anti-fouling effect, described lightning arrester ceramic package 11 bottoms are connected with lower joint pin 16, described lower joint pin 16 is connected with ground plate 3, by ground plate 3, thunder-strike current is introduced to the earth, conventionally ground plate 3 is fixed near being connected on the insulator on electric pole cross-arm.
Described lightning arrester also comprises the current limiting element drainage ball group 15 that draw the wire drainage ball group 14 of drawing lightning arrester head 12 lower surfaces and current limiting element upper surface, described wire drainage ball group 14 and current limiting element drainage ball group 15 include two or more drainage balls, the material of drainage ball group is generally aluminium alloy but being not limited to this also can be other diversion member materials, be generally 2-4, the drainage ball of described wire drainage ball group 14 is corresponding one by one with the drainage ball of described current limiting element drainage ball group 15, the drainage ball that is wire drainage ball group 14 is identical with the drainage ball number of described current limiting element drainage ball group 15, bulb is corresponding one by one one on the other.Described wire drainage ball group 14, described current limiting element drainage ball group 15 are being circularly and evenly distributed in the edge of described lightning arrester head lower surface, described current limiting element upper surface respectively.Axially tilting to ceramic package direction of described wire drainage ball group 14 and described current limiting element drainage ball group 15, the inclination angle between wire drainage ball axially axial with lightning arrester is at 30-45 degree.In clearance distance between described wire drainage ball group and described current limiting element drainage ball group and drainage ball group, the quantity of drainage ball is inverse relationship, quantity more multiple spurs from close to more.
This lightning arrester replaces single drainage ball design can disperse discharge space by drainage ball group; the large electric current that when balanced thunderbolt, flow diverter is born; greatly reducing the working clearance causes the risk of damaging variation; simultaneously; can also accelerate the velocity of discharge of electric arc, after making to be struck by lightning, lightning arrester can recover to avoid power frequency continued flow from protection action faster.The drainage ball that outward flange even circumferential is arranged simultaneously can be expanded discharge space, balanced discharge electric current to greatest extent, axially outwards topples over and is more conducive to accelerate the velocity of discharge, reduces residual voltage, avoids power frequency continued flow.
Adopting previously described is each preferred embodiment of the present utility model, preferred implementation in each preferred embodiment is if not obviously contradictory or taking a certain preferred implementation as prerequisite, each preferred implementation arbitrarily stack combinations is used, design parameter in described embodiment and embodiment is only the utility model proof procedure for clear statement utility model people, not in order to limit scope of patent protection of the present utility model, scope of patent protection of the present utility model is still as the criterion with its claims, the equivalent structure that every utilization specification of the present utility model and accompanying drawing content are done changes, in like manner all should be included in protection range of the present utility model.
As mentioned above, can realize preferably the utility model.
Claims (6)
1. a lightning arrester, described lightning arrester comprises lightning arrester ceramic package (11), lightning arrester head (12), described lightning arrester head (12) be installed on aerial cable and and cable between conducting, in described lightning arrester ceramic package (11), there is the current limiting element upwards stacking from bottom, it is characterized in that, described lightning arrester also comprises the current limiting element drainage ball group (15) that draw the wire drainage ball group (14) of drawing lightning arrester head lower surface and current limiting element upper surface, described wire drainage ball group and current limiting element drainage ball group include two or more drainage balls, the drainage ball of described wire drainage ball group is corresponding one by one with the drainage ball of described current limiting element drainage ball group.
2. lightning arrester as claimed in claim 1, is further characterized in that, described wire drainage ball group (14), described current limiting element drainage ball group (15) are circularly and evenly distributed in the edge of described lightning arrester head lower surface, described current limiting element upper surface respectively.
3. lightning arrester as claimed in claim 1, is further characterized in that, the number that described wire drainage ball group (14) and current limiting element drainage ball group (15) comprise drainage ball is all at 2,3 or 4.
4. lightning arrester as claimed in claim 1, be further characterized in that, axially tilting to described lightning arrester ceramic package direction of described wire drainage ball group (14) and described current limiting element drainage ball group (15), the inclination angle between drainage ball group axially axial with lightning arrester is at 30-45 degree.
5. lightning arrester as claimed in claim 1, is further characterized in that, in the clearance distance between described wire drainage ball group (14) and described current limiting element drainage ball group (15) and drainage ball group, the quantity of drainage ball is inverse relationship.
6. the lightning arrester as described in claim 1-4 any one, is further characterized in that, the material of described wire drainage ball group and described current limiting element drainage ball group is aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260955.6U CN203839704U (en) | 2014-05-21 | 2014-05-21 | Lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260955.6U CN203839704U (en) | 2014-05-21 | 2014-05-21 | Lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839704U true CN203839704U (en) | 2014-09-17 |
Family
ID=51517503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420260955.6U Expired - Fee Related CN203839704U (en) | 2014-05-21 | 2014-05-21 | Lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277734A (en) * | 2019-07-30 | 2019-09-24 | 深圳市深华机电安装工程有限公司 | A kind of lightning protection device |
-
2014
- 2014-05-21 CN CN201420260955.6U patent/CN203839704U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277734A (en) * | 2019-07-30 | 2019-09-24 | 深圳市深华机电安装工程有限公司 | A kind of lightning protection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200521 |