CN102243912B - Overvoltage relief device of insulator - Google Patents
Overvoltage relief device of insulator Download PDFInfo
- Publication number
- CN102243912B CN102243912B CN 201010171735 CN201010171735A CN102243912B CN 102243912 B CN102243912 B CN 102243912B CN 201010171735 CN201010171735 CN 201010171735 CN 201010171735 A CN201010171735 A CN 201010171735A CN 102243912 B CN102243912 B CN 102243912B
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- insulator
- metal cap
- overpressure vent
- electrode
- overvoltage
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Abstract
The invention discloses an overvoltage relief device of an insulator, which is arranged on the insulator which is provided with a metal cap, a line pressing device, a metal base and a ceramic body. The overvoltage relief device comprises a protective cover and an overvoltage relief electrode, wherein the protective cover is arranged on the metal cap, and the overvoltage relief electrode is arranged on the metal base; and an overvoltage relief groove is arranged on one surface of the protective cover which is in contact with the metal base. The technical scheme has the following beneficial effects that: as the overvoltage relief groove is arranged on one surface of the protective cover which is in contact with the metal base, the metal cap can be used as a part of the overvoltage relief electrode, thereby the overvoltage relief electrode arranged on the metal cap is omitted so that the production cost, the management cost, the distribution cost and the working hour of installation and maintenance are greatly reduced.
Description
Technical field
The present invention relates to high-tension electricity conveying equipment field, be specifically related to a kind of insulator overvoltage discharge device.
Background technology
insulator is widely used in the high-tension electricity transportation art, in order to prevent that the overvoltage such as thunder and lightning from causing direct infringement to insulator itself, usually overvoltage discharge device can be set, i.e. mounted in pairs overpressure vent electrode on the metal cap of insulator and metal pedestal, guiding overvoltage electric arc is released into the earth away from the insulator body surface, to reduce the injury to insulator body, be a kind of insulator string electrical arc discharge apparatus that 200720149704.0 patent is announced as the patent No., it is characterized in that, gold utensil is equipped with at the insulator string two ends, the electric arc in parallel Air-gap electrode of releasing fixedly is housed on gold utensil, the discharge air-gap gap length is slightly less than the long length of string of insulator string, insulator string two ends gold utensil, one end is connected with transmission line, the gold utensil of the other end and shaft tower fixed insulation joins.In existing scheme, the insulated protective cover of metal cap covers fully, need to install an overpressure vent electrode on metal cap additional again, makes like this production cost, management cost, distribution cost and installation and maintenance all corresponding increases in man-hour.
Summary of the invention
For addressing the above problem, the object of the present invention is to provide a kind of production cost, management cost, distribution cost and installation and maintenance relatively low insulator overvoltage discharge device in man-hour.
For achieving the above object, technical scheme of the present invention is: a kind of insulator overvoltage discharge device, be installed on the insulator that is provided with metal cap, cord grip, metal pedestal and porcelain body, described overvoltage discharge device comprises the protective cover that covers on metal cap and the overpressure vent electrode that is installed on metal pedestal, and the one side that described protective cover contacts with metal cap is provided with the overpressure vent groove.
Wherein, described overpressure vent electrode is at least one.
Preferably, described overpressure vent groove is located at the position of answering with described overpressure vent electrode pair, and consistent with the quantity of described overpressure vent electrode or more than the quantity of described overpressure vent electrode.
Preferably, described overpressure vent groove is the cannelure around described one week of metal cap.
Adopt the beneficial effect of the technical program to be: the one side that described protective cover contacts with metal cap is provided with the overpressure vent groove, therefore can use metal cap as the part of overpressure vent electrode, thereby save the overpressure vent electrode that is installed on metal cap, production cost, management cost, distribution cost and installation and maintenance are reduced man-hour by a relatively large margin.
Description of drawings
Fig. 1 is the schematic sectional view of a kind of insulator overvoltage discharge device embodiment 1 of the present invention;
Fig. 2 is the schematic diagram of the protective cover embodiment 1 of a kind of insulator overvoltage discharge device of the present invention;
Fig. 3 is the schematic diagram of the protective cover embodiment 2 of a kind of insulator overvoltage discharge device of the present invention;
It is the schematic sectional view of a kind of insulator overvoltage discharge device embodiment 2 of the present invention.
Numeral and the represented corresponding component title of letter in figure:
1. metal cap 2. cord grip 3. metal pedestal 4. porcelain bodies
5. protective cover 6. overpressure vent electrode 51. overpressure vent grooves.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
embodiment 1, as depicted in figs. 1 and 2, a kind of insulator overvoltage discharge device, be installed in and be provided with metal cap 1, cord grip 2, on the insulator of metal pedestal 3 and porcelain body 4, overvoltage discharge device comprises the protective cover 5 that covers on metal cap 1 and the overpressure vent electrode 6 that is installed on metal pedestal 3, the one side that protective cover 5 contacts with metal cap 1 is provided with overpressure vent groove 51, overpressure vent electrode 6 is one, overpressure vent groove 51 is provided with symmetrical two, and be located at the position corresponding with overpressure vent electrode 6, can not check when installing that like this overpressure vent groove 51 is whether corresponding with overpressure vent electrode 6 positions, avoid setup error and increase installation procedure.
its operation principle is, existence due to overpressure vent groove 51, the part of metal cap 1 is exposed in air, the position of exposed part is corresponding with overpressure vent electrode 6, when running into, transmission line is struck by lightning or other causes superpotential situation, air between metal cap 1 exposed part and overpressure vent electrode 6 is breakdown, overvoltage is by the earth of releasing away from the electric arc on insulator porcelain body 4 surfaces, thereby avoided the damage of overvoltage to insulator, because the setting of overpressure vent groove 51, make metal cap 1 become the part of overvoltage discharge device, thereby saved the overpressure vent electrode 6 that is installed on metal cap 1.
Wherein, the quantity of overpressure vent groove 51 can be also 4, at correspondence position, corresponding overpressure vent electrode 6 can be set, as long as the quantity of the quantity that satisfies overpressure vent groove 51 and overpressure vent electrode 6 is consistent or more than the quantity of overpressure vent electrode 6.
Adopt the beneficial effect of the technical program to be: the one side that protective cover 5 contacts with metal cap 1 is provided with overpressure vent groove 51, therefore can use metal cap 1 as the part of overpressure vent electrode 6, thereby save the overpressure vent electrode 6 that is installed on metal cap 1, production cost, management cost, distribution cost and installation and maintenance are reduced man-hour by a relatively large margin.
Above-described is only the preferred embodiment of the present invention, should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, and these all belong to protection scope of the present invention.
Claims (2)
1. insulator overvoltage discharge device, be installed on the insulator that is provided with metal cap, cord grip, metal pedestal and porcelain body, it is characterized in that, described overvoltage discharge device comprises the protective cover that covers on metal cap and the overpressure vent electrode that is installed on metal pedestal, the one side that described protective cover contacts with metal cap is provided with the overpressure vent groove, and described overpressure vent groove is the cannelure around described one week of metal cap.
2. a kind of insulator overvoltage discharge device as claimed in claim 1, is characterized in that, described overpressure vent electrode is at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010171735 CN102243912B (en) | 2010-05-13 | 2010-05-13 | Overvoltage relief device of insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010171735 CN102243912B (en) | 2010-05-13 | 2010-05-13 | Overvoltage relief device of insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102243912A CN102243912A (en) | 2011-11-16 |
| CN102243912B true CN102243912B (en) | 2013-05-08 |
Family
ID=44961915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010171735 Expired - Fee Related CN102243912B (en) | 2010-05-13 | 2010-05-13 | Overvoltage relief device of insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102243912B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390473B (en) * | 2013-07-29 | 2016-08-24 | 国家电网公司 | A kind of column type porcelain insulator |
| CN103390472B (en) * | 2013-07-29 | 2016-02-03 | 国家电网公司 | A kind of column type porcelain insulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174497A (en) * | 2006-11-03 | 2008-05-07 | 上海电瓷厂 | Lightning protection supporting insulator and insulated cable used with it |
| CN201213082Y (en) * | 2008-06-24 | 2009-03-25 | 合肥固力发电气有限公司 | Puncture type lightning preventing insulator |
| CN201717072U (en) * | 2010-05-13 | 2011-01-19 | 苏州爱建电瓷有限公司 | Insulator overvoltage discharge device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3749572B2 (en) * | 1996-06-07 | 2006-03-01 | 日本高圧電気株式会社 | Discharge electrode device for insulated wires |
| JPH10106714A (en) * | 1996-10-01 | 1998-04-24 | Otowa Denki Kogyo Kk | Lightning breakage protection device for insulation coated wire |
| JP3236789B2 (en) * | 1997-03-04 | 2001-12-10 | 東京電力株式会社 | Attachment to insulator and current limiting high pressure clamp insulator using it |
-
2010
- 2010-05-13 CN CN 201010171735 patent/CN102243912B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174497A (en) * | 2006-11-03 | 2008-05-07 | 上海电瓷厂 | Lightning protection supporting insulator and insulated cable used with it |
| CN201213082Y (en) * | 2008-06-24 | 2009-03-25 | 合肥固力发电气有限公司 | Puncture type lightning preventing insulator |
| CN201717072U (en) * | 2010-05-13 | 2011-01-19 | 苏州爱建电瓷有限公司 | Insulator overvoltage discharge device |
Non-Patent Citations (3)
| Title |
|---|
| JP平10-106714A 1998.04.24 |
| JP平10-247430A 1998.09.14 |
| JP平9-330780A 1997.12.22 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102243912A (en) | 2011-11-16 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20170513 |
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| CF01 | Termination of patent right due to non-payment of annual fee |