CN202940459U - Lightning arrester used in extra-high voltage alternating-current electric transmission line - Google Patents
Lightning arrester used in extra-high voltage alternating-current electric transmission line Download PDFInfo
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- CN202940459U CN202940459U CN 201220668994 CN201220668994U CN202940459U CN 202940459 U CN202940459 U CN 202940459U CN 201220668994 CN201220668994 CN 201220668994 CN 201220668994 U CN201220668994 U CN 201220668994U CN 202940459 U CN202940459 U CN 202940459U
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- lightning arrester
- transmission line
- insulator
- voltage alternating
- ultrahigh
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Abstract
The utility model discloses a lightning arrester used in an extra-high voltage alternating-current electric transmission line. The lightning arrester comprises an insulator, and a plurality of lightning arrester body elements which are serially connected together. Two ends of the insulator are installed with an upper electrode and a lower electrode respectively. The bottom end of the lowest lightning arrester body element is further connected with a suspension insulator. The insulator and the lightning arrester body elements are connected through a connecting element. According to the utility model, the insulator and the plurality of lightning arrester body elements are serially connected together, two ends of the insulator are installed with an upper electrode and a lower electrode respectively, a series gap is formed, the requirements of 500kV electric transmission line lightning protection on the protective characteristics, the discharge dispersivity and the discharge current capacity of the lightning arrester can be satisfied; and the advantage of flexible installation method can be realized, so the lightning arrester can be easily installed on an electric transmission line tower.
Description
Technical field
The utility model relates to high-voltage alternating lightning arrester field, particularly a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester.
Background technology
In transmission line, lightning arrester is arranged on transmission tower as important overvoltage protection, with the line insulator connection in series-parallel, is used for the lightning overvoltage of restriction transmission line, reduces lightning flashover rate.
Along with the development of national economy, the requirement of power supply reliability is improved constantly.Due to transmission line be subjected to large many of thunder Area Ratio transformer station, so the probability that is struck by lightning is much larger than transformer station.Along with the continuous expansion of electrical network, because tripping operation, power outage that transmission line causes are increasing.Due to the overvoltage characteristics of transmission line and the particularity that lightning arrester is installed at transmission line, common lightning arrester can't satisfy the lightning protection of transmission line and the requirement of installing at circuit.
The utility model content
The purpose of this utility model is to provide a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester, can protect the 500kV transmission line, reduces lightning flashover rate; and its protective value is good; the discharge in gap dispersed little, mounting means is flexible, is convenient to be arranged on electric power line pole tower.
For achieving the above object, the utility model adopts following technical scheme:
A kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester comprises insulator and a plurality of lightning arrester body elements that are connected in series; Top electrode and bottom electrode are equipped with in the two ends of insulator; A lightning arrester body element bottom of lowermost end also is connected with suspension insulator; Insulator connects by connector with the lightning arrester body element.
The utility model further improves and is: described insulator overcoat has the silicon rubber full skirt.
The utility model further improves and is: described top electrode and bottom electrode are metal ring.
The utility model further improves and is: described lightning arrester body element internal is equipped with zinc oxide resistance sheet.
The utility model further improves and is: adjacent lightning arrester body element also is connected by connector.
The utility model further improves and is: a lightning arrester body element bottom of lowermost end is connected with suspension insulator by connector.
The utility model further improves and is: described connector is a pair of bulb, socket arrangement.
The utility model further improves and is: described connector is connected the wire short circuit.
The utility model further improves and is: the described lightning arrester body element that is connected in series is 2-5.
With respect to prior art, the beneficial effect that the utlity model has is: the utility model adopts insulator and a plurality of lightning arrester body element to be connected in series, install by upper/lower electrode at the insulator two ends, form series gap, can satisfy 500kV transmission line lightning protection to the requirement of protective characteristic of arresters, discharge dispersity, discharge capacity; And, be provided with porcelain insulator bottom the lightning arrester body element, for being installed, counter provides insulation.Simultaneously, the lightning arrester body element adopts the polymeric housed metal oxide arrester structure, and two ends adopt connector to connect, and mounting means is flexible, adapts to the mounting means on different types of transmission tower.This extra high voltage network can be protected the 500kV transmission line of alternation current with lightning arrester, reduce lightning flashover rate, and its protective value is good, the discharge in gap dispersed little, and mounting means is flexible, is convenient to be arranged on electric power line pole tower.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is described further;
Fig. 1 is that the master of a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester of the present utility model looks schematic diagram;
In figure: 1, top electrode; 2, insulator; 3, bottom electrode; 4, connector; 5, lightning arrester body element; 6, connect wire; 7, suspension insulator.
Embodiment:
With reference to Fig. 1, a kind of ultrahigh-voltage alternating-current used for transmission line of the utility model lightning arrester comprises 1 insulator 2 and 3 lightning arrester body elements 5 and 1 suspension insulator 7; Top electrode 1 and bottom electrode 3 are equipped with in the two ends of insulator 3, form sparking electrode; Lightning arrester body element 5 bottoms are connected with suspension insulator 7; Insulator 2 is connected with the lightning arrester body element, 5 of lightning arrester body elements and lightning arrester body element 5 be connected with suspension insulator by connector 4(bulb ball-and-socket) connect, and connect wire 6 with connector 4 short circuits; Top electrode 1 is connected with bottom electrode and is connected with insulator 2 by snap ring; The upper end of insulator 2 is connected with the gold utensil of transmission line, and the lower end of suspension insulator 7 connects with the gold utensil that is connected of the fixing point of shaft tower.
In the utility model lightning arrester, lightning arrester body element 5 adopts the polymeric housed metal oxide arrester structure, zinc oxide resistance sheet is equipped with in its inside, install by connector 4 end, and connector is bulb, ball-and-socket, connecting plate and link, and its overcoat adopts silicon rubber to make the full skirt shape; The full skirt shape that insulator 2 overcoats adopt silicon rubber to make.
The utility model is not limited to 3 given lightning arrester body elements 5 that mutually are connected in series of accompanying drawing 1, can also be 2-5.
Claims (9)
1. a ultrahigh-voltage alternating-current used for transmission line lightning arrester, is characterized in that, comprises insulator (2) and a plurality of lightning arrester body elements (5) that are connected in series; Top electrode (1) and bottom electrode (3) are equipped with in the two ends of insulator (2); A lightning arrester body element (5) bottom of lowermost end also is connected with suspension insulator (7); Insulator (2) is connected 5 with the lightning arrester body element) connect by connector (4).
2. a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester according to claim 1, is characterized in that, described insulator (2) overcoat has the silicon rubber full skirt.
3. a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester according to claim 1, is characterized in that, described top electrode (1) and bottom electrode (3) are metal ring.
4. a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester according to claim 1, is characterized in that, zinc oxide resistance sheet is equipped with in described lightning arrester body element (5) inside.
5. a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester according to claim 1, is characterized in that, adjacent lightning arrester body element (5) also is connected by connector (4).
6. a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester according to claim 5, is characterized in that, a lightning arrester body element (5) bottom of lowermost end is connected with suspension insulator (7) by connector (4).
7. according to claim 1,5 or 6 described a kind of ultrahigh-voltage alternating-current used for transmission line lightning arresters, is characterized in that, described connector (4) is a pair of bulb, socket arrangement.
8. according to claim 1,5 or 6 described a kind of ultrahigh-voltage alternating-current used for transmission line lightning arresters, is characterized in that, described connector (4) is connected wire (6) short circuit.
9. a kind of ultrahigh-voltage alternating-current used for transmission line lightning arrester according to claim 1, is characterized in that, the described lightning arrester body element (5) that is connected in series is 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668994 CN202940459U (en) | 2012-12-05 | 2012-12-05 | Lightning arrester used in extra-high voltage alternating-current electric transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220668994 CN202940459U (en) | 2012-12-05 | 2012-12-05 | Lightning arrester used in extra-high voltage alternating-current electric transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940459U true CN202940459U (en) | 2013-05-15 |
Family
ID=48324682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220668994 Expired - Lifetime CN202940459U (en) | 2012-12-05 | 2012-12-05 | Lightning arrester used in extra-high voltage alternating-current electric transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940459U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129951A (en) * | 2016-07-07 | 2016-11-16 | 南阳金冠电气有限公司 | Hybrid connections formula structure for installing lightning arrester |
| US11322913B2 (en) | 2018-09-28 | 2022-05-03 | Hitachi Energy Switzerland Ag | Externally gapped line arrester |
-
2012
- 2012-12-05 CN CN 201220668994 patent/CN202940459U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106129951A (en) * | 2016-07-07 | 2016-11-16 | 南阳金冠电气有限公司 | Hybrid connections formula structure for installing lightning arrester |
| CN106129951B (en) * | 2016-07-07 | 2018-08-24 | 南阳金冠电气有限公司 | Hybrid connections formula structure for installing lightning arrester |
| US11322913B2 (en) | 2018-09-28 | 2022-05-03 | Hitachi Energy Switzerland Ag | Externally gapped line arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: XI'AN XD ARRESTER Co.,Ltd. Assignor: CHINA XD ELECTRIC Co.,Ltd. Contract record no.: 2015610000050 Denomination of utility model: Lightning arrester used in extra-high voltage alternating-current electric transmission line Granted publication date: 20130515 License type: Exclusive License Record date: 20150513 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |