CN204966184U - Drop -out circuit overvoltage protection device - Google Patents
Drop -out circuit overvoltage protection device Download PDFInfo
- Publication number
- CN204966184U CN204966184U CN201520634649.9U CN201520634649U CN204966184U CN 204966184 U CN204966184 U CN 204966184U CN 201520634649 U CN201520634649 U CN 201520634649U CN 204966184 U CN204966184 U CN 204966184U
- Authority
- CN
- China
- Prior art keywords
- zinc oxide
- insulator
- oxide arrester
- moving contact
- protection device
- Prior art date
- 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.)
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000011787 zinc oxide Substances 0.000 claims abstract description 35
- 239000012212 insulator Substances 0.000 claims abstract description 25
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- 230000000875 corresponding Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001012 protector Effects 0.000 description 3
- 206010042255 Struck by lightning Diseases 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- VODBHXZOIQDDST-UHFFFAOYSA-N [O--].[O--].[Cu++].[Zn++] Chemical compound [O--].[O--].[Cu++].[Zn++] VODBHXZOIQDDST-UHFFFAOYSA-N 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Abstract
The utility model relates to a drop -out circuit overvoltage protection device, it includes: insulator, the wiring end, the one end setting that set up on the insulator top are in starting rod that the wiring was served, set up on the insulator and with the corresponding conductive element of the starting rod other end, set up fixing device on the insulator, set up the earthing terminal of insulator bottom, with conductive element fixed connection's buckler, setting are in the zinc oxide arrester of buckler below and be used for with facility zinc oxide arrester bottom with the copper lower carriage that the earthing terminal is connected, be provided with moving contact under the copper on the lower carriage, down the moving contact with zinc oxide arrester bottom overlap joint, the utility model discloses simple to operate need not not change former circuit design to the electric current transmissibility is high, more can protect the circuit.
Description
Technical field
The utility model relates to circuit lightning protection facility field, is specifically related to a kind of drop type line overvoltage protection device.
Background technology
Overhead transmission line is higher due to decorating position, suffers effects of lightning comparatively large, is easily hit under generation thunderstorm weather, and the lightning overvoltage that causes of being struck by lightning very easily to cause in overhead transmission line insulator arc-over or punctures, and causes circuit lightning-caused breaking or trip accident.And existing overvoltage protector adopts mostly is by forming air gap between trolley wire and guide ring, thus air gap is breakdown and realize thunder and lightning earial drainage when being hit by thunder and lightning.But the air gap of this overvoltage protector can cause practical effect very bad because of there is bird or other objects, be still easier to degree of appearance broken string and trip accident when there is thunderbolt.
Utility model content
It is not easily influenced that technical problem to be solved in the utility model is to provide a kind of air gap, and result of use is stablized, and the Line over-voltage protector that electric current conduction efficiency is high.
The technical scheme that the utility model adopts for its technical problem of solution is: a kind of drop type line overvoltage protection device, it comprises: insulator, be arranged on the terminals on insulator top, one end is arranged on the starting rod on described terminals, arrange on the insulator and the conducting element corresponding with the described starting rod other end, fixture is on the insulator set, be arranged on the earth terminal of insulator bottom, the bucker be fixedly connected with described conducting element, be arranged on the zinc oxide arrester below described bucker and the copper lower carriage for being connected with described earth terminal zinc oxide arrester bottom, described lower carriage is provided with copper lower moving contact, described lower moving contact and described zinc oxide arrester bottom overlap.
Further, described starting rod is that arcuation is tilted to lower setting, and corresponding with described conducting element position.
Further, described bucker cross section is U-shaped.
Further, on the downside of described bucker, be also provided with moving contact, described zinc oxide arrester and described upper moving contact clamping.
Further, described zinc oxide arrester top is also provided with copper drawing handle, described copper drawing handle and described upper moving contact clamping.
Further, described zinc oxide arrester is the non-linear zinc oxide arrester of drop type ZnO resistors.
Good effect of the present utility model is: form air gap by starting rod and conducting element, effectively prevents because bird or other object have an impact to air gap, thus produces line short or tripping operation; Lower carriage is provided with copper lower moving contact; the bottom of zinc oxide arrester is directly connected with the earth terminal of insulator; and also there is drawing handle made of copper zinc oxide arrester top and clamping sheet placement; increase electric current conduction efficiency; zinc oxide arrester is more easily punctured, plays the effect of protection main line.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In the accompanying drawings, 1-insulator, 2-lower carriage, 3-starting rod, 4-terminals, 5-bucker, 6-drawing handle, the upper moving contact of 7-, 8-zinc oxide arrester, 9-lower moving contact, 10-earth terminal, 11-fixture, 13-conducting element.
Embodiment
A kind of drop type line overvoltage protection device as shown in Figure 1, it comprises: insulator 1, be arranged on the terminals 4 on insulator 1 top, one end is arranged on the starting rod 3 on described terminals 4, be arranged on conducting element 13 on insulator 1 and corresponding with described starting rod 3 other end, be arranged on the fixture 11 on insulator 1, be arranged on the earth terminal 10 of insulator 1 bottom, the bucker 5 be fixedly connected with described conducting element 13, be arranged on the zinc oxide arrester 8 below described bucker 5 and the copper lower carriage 2 for being connected with described earth terminal 10 facility zinc oxide arrester 8 bottom, described lower carriage 2 is provided with copper lower moving contact 9, and described lower moving contact 9 overlaps with described zinc oxide arrester 8 bottom.The lower setting for arcuation is tilted to of described starting rod 3, and corresponding with described conducting element 13 position.Air series gap between the starting rod of particular design and zinc oxide arrester can not cause short circuit because of bird or other object and long ground connection occurs, do not limit by overhead line structures and insulator, do not need the mounting distance considering manual control air series gap, do not need to change former line design.
Described bucker 5 cross section is U-shaped, moving contact 7 is also provided with on the downside of described bucker 5, described zinc oxide arrester 8 and the clamping of described upper moving contact 7, described zinc oxide arrester 8 top is also provided with copper drawing handle 6, described copper drawing handle 6 and the clamping of described upper moving contact 7, described zinc oxide arrester 8 is the non-linear zinc oxide arrester of drop type ZnO resistors.Drawing handle 6 and upper moving contact 7 are all arranged in the groove of U-shaped structure, effectively prevent the wearing and tearing caused element of exposing to the weather, and ensure useful life.Lower carriage 2, drawing handle 6 and lower moving contact 9 all adopt copper material, and electrical efficiency is higher, and reaction is more rapid, can not be destroyed at very first time protection circuit.
Under electrical network normal operation, air gap isolation power-frequency voltage, zinc oxide arrester 8 does not bear voltage; Under lightning overvoltage effect; the breakdown electric discharge in air gap that starting rod 3 and conducting element 13 are formed; zinc oxide arrester 8 presents low resistance state; form discharge channel; lightning current is released into ground; the development of over-voltage, thus protection overhead transmission line, prevent lightning-caused breaking and reduce lightning stroke trip.After lightning impulse, power-frequency voltage is added on zinc oxide arrester 8, the resistance of zinc oxide arrester 8 becomes large instantaneously, the electric current passed through and arc current are suppressed in lower numerical value, increase falls in air gap arc voltage, electric arc naturally extinguishes in very short time, and the insulation of air gap is restored, and power frequency continued flow is completely severed.When thunderbolt overhead transmission line, lightning current is released into ground by drop type gap protection device, cuts off power frequency continued flow, avoids insulator arc-over or puncture, protection overhead transmission line, prevents lightning-caused breaking and minimizing lightning stroke trip accident.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in previous embodiment, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (6)
1. a drop type line overvoltage protection device, it is characterized in that it comprises: insulator (1), be arranged on the terminals (4) on insulator (1) top, one end is arranged on the starting rod (3) on described terminals (4), be arranged on the conducting element (13) that insulator (1) is upper and corresponding with described starting rod (3) other end, be arranged on the fixture (11) on insulator (1), be arranged on the earth terminal (10) of insulator (1) bottom, the bucker (5) be fixedly connected with described conducting element (13), be arranged on the zinc oxide arrester (8) of described bucker (5) below and the copper lower carriage (2) for being connected with described earth terminal (10) zinc oxide arrester (8) bottom, described lower carriage (2) is provided with copper lower moving contact (9), described lower moving contact (9) and described zinc oxide arrester (8) bottom overlap.
2. a kind of drop type line overvoltage protection device according to claim 1, is characterized in that described starting rod (3) lower setting for arcuation is tilted to, and corresponding with described conducting element (13) position.
3. a kind of drop type line overvoltage protection device according to claim 1, is characterized in that described bucker (5) cross section is U-shaped.
4. a kind of drop type line overvoltage protection device according to claim 1, is characterized in that described bucker (5) downside is also provided with moving contact (7), described zinc oxide arrester (8) and the clamping of described upper moving contact (7).
5. a kind of drop type line overvoltage protection device according to claims 4, is characterized in that described zinc oxide arrester (8) top is also provided with copper drawing handle (6), described copper drawing handle (6) and the clamping of described upper moving contact (7).
6. a kind of drop type line overvoltage protection device according to claim 5, is characterized in that described zinc oxide arrester (8) is for the non-linear zinc oxide arrester of drop type ZnO resistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634649.9U CN204966184U (en) | 2015-08-21 | 2015-08-21 | Drop -out circuit overvoltage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520634649.9U CN204966184U (en) | 2015-08-21 | 2015-08-21 | Drop -out circuit overvoltage protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204966184U true CN204966184U (en) | 2016-01-13 |
Family
ID=55061233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520634649.9U Active CN204966184U (en) | 2015-08-21 | 2015-08-21 | Drop -out circuit overvoltage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204966184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332220A (en) * | 2020-10-20 | 2021-02-05 | 贵州电网有限责任公司 | Built-in series gap lightning arrester of distribution line |
-
2015
- 2015-08-21 CN CN201520634649.9U patent/CN204966184U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332220A (en) * | 2020-10-20 | 2021-02-05 | 贵州电网有限责任公司 | Built-in series gap lightning arrester of distribution line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TR01 | Transfer of patent right |
Effective date of registration: 20220509 Address after: 071400 No. 99, Gongye South Street, Lixian Economic Development Zone, Baoding City, Hebei Province Patentee after: Tesla (Baoding) new energy Co.,Ltd. Address before: 071400 South Industrial Street, economic development zone, Li County, Baoding City, Hebei Province Patentee before: HEBEI SHENSANKAI ELECTRIC APPLIANCE MANUFACTURING Co.,Ltd. |