CN2291708Y - Lightning-protection insulator for power overhead ground wire - Google Patents
Lightning-protection insulator for power overhead ground wire Download PDFInfo
- Publication number
- CN2291708Y CN2291708Y CN 97205945 CN97205945U CN2291708Y CN 2291708 Y CN2291708 Y CN 2291708Y CN 97205945 CN97205945 CN 97205945 CN 97205945 U CN97205945 U CN 97205945U CN 2291708 Y CN2291708 Y CN 2291708Y
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- lightning
- insulator
- bulb
- electric power
- disk
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Abstract
The utility model relates to an insulator used for supporting or hanging a power transmission ground wire, which belongs to the technical field of power transmission. The defect that the traditional insulator with a discharge gap of a ground wire is easy to be affected by natural and environment is overcome. The utility model is composed of a ball head (1), an earth bolt (2), a porcelain circular disc (7) and a wiring bolt (14). The utility model is characterized in that the middle of the ball head (1) is provided with a chamber in which a loop is arranged, wherein the loop is formed by the connection in series by at least a group of zinc oxide varistor assemblies (11) and at least a group of metal discharge gap assemblies (12); one end of the chamber is connected with the earthing bolt (2), and the other end is connected with a wiring bolt (11). The utility model has the advantages of energy saving, high efficiency, stabilization, reliability and favorable economic benefit.
Description
The utility model discloses a kind of insulator that is used to support or hang transmission line top lightning conducter, belong to electric power and technology of transmission of electricity field.
Insulator is commonly called as " porcelain vase ", is widely used in the transmission line.Lightning conducter also claims " overhead ground wire ", with galvanized strand wires is erected at the top of overhead transmission line usually, and give wiring, suffers the possibility of direct stroke in order to the lead that reduces transmission line.Coil holder will take shelter from the thunder on the transmission line that has on insulator and by placing the discharging gap insulation against ground of insulator outside, to reduce electric energy loss and to can be used as carrier channel between generating and changed electric field.But because the inherent shortcoming of this insulator, as: the discharging gap distance can not be invariable, and the influence that is subjected to natural conditions is hindered practical application than factors such as big and environmental pollutions.So, develop a kind of new discharging gap stablize constant, be not subject to natural conditions and environmental pollution the influence electric power lightning conducter lightning protection wave arrestment insulator be the new problem that presses in the power transmission engineering.
Invention task of the present utility model provides a kind ofly to be had stable anti-thunder and lightning gap, has strong blocking effect not to be subjected to supporting that natural conditions and environmental pollution influence or the insulator that hangs lightning conducter to carrier signal.
Technical essential of the present utility model is the top bulb of insulator is partly made cavity, sealing has been installed one at least by one group of zinc oxide varistor assembly and at least one group of lightning-arrest device that metal discharge gap coupled in series constitutes in chamber, and its two ends link with the connection bolt of the porcelain disc centre of the earth stud of bulb part and bottom respectively.Formation connects discharging gap, zinc oxide varistor, earth stud, the iron tower discharge loop to the earth successively from lightning conducter.
The utility model is finished like this: a kind of electric power lightning conducter lightning protection wave arrestment insulator, constituted by bulb (1), earth stud (2), porcelain disk (7) and connection bolt (14), it is characterized in that a chamber being arranged in the centre of bulb (1), at least a lightning-arrest device loop that is made of one group of zinc oxide varistor assembly (11) and at least one group of metal discharge gap assembly (12) coupled in series has been installed in the chamber, the one end connects with earth stud (2) on the bulb (1), and the other end connects with connection bolt (14) in the middle of the porcelain disk (7).
Operation principle of the present utility model is the thunder and lightning path that adopts zinc oxide varistor and discharging gap series connection the to form lightning current of releasing, and simultaneously carrier wave is played the high impedance effect.According to actual needs, nominal voltage that can selective oxidation zinc piezo-resistance and sheet number or select the size of discharging gap and the quantity in gap adapts to the needs of different protection voltages.When the utility model uses, its earth stud is linked by gold utensil and the earth, connection bolt is fixedlyed connected with lightning conducter and is got final product.
Advantage of the present utility model shows as: can guarantee the lightning withstand level of power line, can reduce electric energy loss significantly again; The choosing value that had both helped the protective relaying device setting value guarantees its not tripping of phase selection element, can prevent effectively that again power frequency continued flow from not interrupting and the generation of frequent discharge interference phenomenon; Can shunt bigger short circuit current, guarantee its shielding action, can guarantee to reduce power-frequency overvoltage again and reduce secondary arc current communication link; And can utilize it to open the high-frequency signal transmission passage effectively reliably.Thereby give full play to the huge technical economic benefit of insulation lightning conducter.
Figure of description 1 is structure (the partly cuing open) schematic diagram of a specific embodiment of the present utility model.Among the figure: 1-bulb, 2-earth stud, 3-top metal disk, the 4-spring, solid plate, 6-filler are drawn in the 5-insulation, 7-porcelain disk, the 8-insulation cushion, the 9-nut, 10-phosphor-copper conducting strip, 11-zinc oxide varistor assembly, 12-metal discharge gap assembly, 13-bottom rosette, 14-connection bolt.
Below in conjunction with Figure of description, embodiment of the present utility model is elaborated: the insulator in the present embodiment is a suspended structure, bulb (1) adopts band u shape suspension ring style, made by the cast steel material casting, earth stud (2) is spirally connected by top metal disk (3) with bulb (1) and is tightened to one; Earth stud (14) and porcelain disk (7) are spirally connected and are tightened to one by bottom rosette (13), nut (9); Zinc oxide varistor assembly (11) metal discharge gap assembly (12) is supported and fixed between top metal disk (3) and the bottom rosette (13) by spring (4), and the top bottom rosette draws solid plate (5) clamping to be screwed into one by insulation; The lead-in wire of zinc oxide varistor assembly (11) connects a phosphor-copper conducting strip (10) and connects with top metal disk (3); Metal discharge gap assembly (12) has adopted two disc electrode clamping one deck mica sheets with holes to constitute; Adopt epoxy resin filler (6) integral sealing gummed to connect between bulb (1) and the porcelain disk (7).
Among this embodiment, the Zinc-oxide piezoresistor assembly is 2 groups; The discharging gap assembly is 1 group; Its nominal discharge current, with reference to the regulation of International Electrotechnical Commission [IEC] to the 42KV-396KV lightning arrester, China is chosen to be 10KA to the lightning arrester nominal discharge current value of 330KV-500KV electrical voltage system defined; Its whole industrial frequency withstand voltage (when lightning-arrest assembly is got involved) dry arc-over 50KV; Wet flashover 25KV; Puncture 85KV; Its anti-load electromechanical failure load of opening is not less than 6000KG.
Claims (6)
1, a kind of electric power lightning conducter lightning protection wave arrestment insulator, constituted by bulb (1) earth stud (2), porcelain disk (7) and connection bolt (14), it is characterized in that a chamber is arranged in the middle of bulb (1), at least a lightning-arrest device loop that is made of one group of zinc oxide varistor assembly (11) and at least one group of metal discharge gap assembly (12) coupled in series has been installed in the chamber, the one end connects with earth stud (2) on the bulb (1), and the other end connects with connection bolt (14) in the middle of the porcelain disk (7).
2, according to the described electric power lightning conducter of claim 1 lightning protection wave arrestment insulator, it is characterized in that bulb (1) adopts band U-shaped suspension ring style, earth stud (2) is spirally connected by top metal disk (3) with bulb and is tightened to one.
3, according to the described electric power lightning conducter of claim 1 lightning protection wave arrestment insulator, it is characterized in that earth stud (14) and porcelain disk (7) by bottom rosette (13), nut (9) is spirally connected and is tightened to one.
4,, it is characterized in that metal discharge gap assembly (12) has adopted two disc electrode clamping one deck mica sheets with holes to constitute according to the described electric power lightning conducter of claim 1 lightning protection wave arrestment insulator.
5,, it is characterized in that adopting between bulb (1) and the porcelain disk (7) epoxy resin filler (6) integral sealing gummed to connect according to the described electric power lightning conducter of claim 1 lightning protection wave arrestment insulator.
6, according to claim 1,2,3 described electric power lightning conducter lightning protection wave arrestment insulators, it is characterized in that zinc oxide varistor assembly (11), metal discharge gap assembly (12) is supported and fixed on top metal disk (3) by spring (4) and bottom rosette (3,13) draws solid plate (5) clamping to be screwed into one by insulation, and the lead-in wire of zinc oxide varistor assembly (11) connects a phosphor-copper conducting strip (10) and links with top metal disk (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205945 CN2291708Y (en) | 1997-01-30 | 1997-01-30 | Lightning-protection insulator for power overhead ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205945 CN2291708Y (en) | 1997-01-30 | 1997-01-30 | Lightning-protection insulator for power overhead ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2291708Y true CN2291708Y (en) | 1998-09-16 |
Family
ID=33926060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205945 Expired - Fee Related CN2291708Y (en) | 1997-01-30 | 1997-01-30 | Lightning-protection insulator for power overhead ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2291708Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730854A (en) * | 2013-12-11 | 2014-04-16 | 乐清市风杰电子科技有限公司 | Transformer substation |
| CN107359023A (en) * | 2017-08-26 | 2017-11-17 | 苏州灵亿易电子科技有限公司 | The lightning protection pillar insulator of built-in discharging gap |
| CN114035002A (en) * | 2021-11-11 | 2022-02-11 | 国网河南省电力公司商丘供电公司 | High tension transmission line insulator safety inspection device |
-
1997
- 1997-01-30 CN CN 97205945 patent/CN2291708Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730854A (en) * | 2013-12-11 | 2014-04-16 | 乐清市风杰电子科技有限公司 | Transformer substation |
| CN106451164A (en) * | 2013-12-11 | 2017-02-22 | 乐清市风杰电子科技有限公司 | A transformer substation with a lightning arrester |
| CN106451165A (en) * | 2013-12-11 | 2017-02-22 | 乐清市风杰电子科技有限公司 | Transformer substation with good electric insulation performance |
| CN106486909A (en) * | 2013-12-11 | 2017-03-08 | 乐清市风杰电子科技有限公司 | A kind of transformer station with lightning arrester |
| CN106505448A (en) * | 2013-12-11 | 2017-03-15 | 乐清市风杰电子科技有限公司 | Transformer station |
| CN106505451A (en) * | 2013-12-11 | 2017-03-15 | 乐清市风杰电子科技有限公司 | A kind of transformer station |
| CN106505450A (en) * | 2013-12-11 | 2017-03-15 | 乐清市风杰电子科技有限公司 | Transformer station |
| CN106505449A (en) * | 2013-12-11 | 2017-03-15 | 乐清市风杰电子科技有限公司 | A kind of preferable transformer station of electrical insulation properties |
| CN106505452A (en) * | 2013-12-11 | 2017-03-15 | 乐清市风杰电子科技有限公司 | A kind of transformer station |
| CN106549326A (en) * | 2013-12-11 | 2017-03-29 | 乐清市风杰电子科技有限公司 | A kind of transformer station for lifting electrical insulation properties |
| CN107359023A (en) * | 2017-08-26 | 2017-11-17 | 苏州灵亿易电子科技有限公司 | The lightning protection pillar insulator of built-in discharging gap |
| CN114035002A (en) * | 2021-11-11 | 2022-02-11 | 国网河南省电力公司商丘供电公司 | High tension transmission line insulator safety inspection device |
| CN114035002B (en) * | 2021-11-11 | 2024-04-16 | 国网河南省电力公司商丘供电公司 | High tension transmission line insulator safety detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |