CN201490714U - Line lighting protection overvoltage protector - Google Patents
Line lighting protection overvoltage protector Download PDFInfo
- Publication number
- CN201490714U CN201490714U CN2009201641712U CN200920164171U CN201490714U CN 201490714 U CN201490714 U CN 201490714U CN 2009201641712 U CN2009201641712 U CN 2009201641712U CN 200920164171 U CN200920164171 U CN 200920164171U CN 201490714 U CN201490714 U CN 201490714U
- Authority
- CN
- China
- Prior art keywords
- line
- zinc oxide
- protection device
- adjustable metal
- overvoltage protection
- 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.)
- Expired - Fee Related
Links
- 230000001012 protector Effects 0.000 title abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000011787 zinc oxide Substances 0.000 claims abstract description 20
- 239000012212 insulator Substances 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 210000003813 thumb Anatomy 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Landscapes
- Thermistors And Varistors (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a line lighting protection overvoltage protector, which comprises an adjustable metal bracket. The utility model is characterized in that one end of the adjustable metal bracket is connected with a line insulator steel leg screw, the other end thereof is connected with the lower end of a zinc oxide lightning arrester and the other end of the zinc oxide lightning arrester is connected with a rod gap component in series. The utility model has reasonable structural design and can be applicable to all insulators of 10KV power transmission system. Because the lightning arrester is connected with the gap in series, the utility model can be adjusted freely and installed conveniently according to the height of the site insulator.
Description
Technical field
The utility model belongs to outdoor AC high-voltage circuit lightning arrester, is specifically related to a kind of line thunder protection overvoltage protection device of lightning arrester series gap lightning protection type
Background technology
China's electric power is in developing rapidly, and the transmission line lightning stroke problem is more and more outstanding, has had a strong impact on normal grid supply quality.Present China high pressure grade; for example all add the line thunder protection protection in 500Kv, 220kV, 110kV, the 35kV circuit; and a large amount of 10kV circuits does not all install additional; in recent years; along with improving constantly of China 10kV overhead distribution insulating rate; etesian 10kV circuit broken string accident reaches hundreds of times, and electrical network reliability service and personal injury safety have been constituted threat, has become the problem that China's electrical network presses for solution.
The utility model content
The utility model provides a kind of reasonable in design; applicable to the line thunder protection overvoltage protection of all kinds insulator of 10kV transmission system, it adopts lightning arrester series gap mode, can be according to on-the-spot insulator height; free adjustment, integral installation is convenient.
The technical scheme that the utility model adopted is as follows:
A kind of line thunder protection overvoltage protection device; comprise an adjustable metal support; it is characterized in that described adjustable metal support one end is connected on the line insulator steel thumb screw; the other end connects the bottom of a zinc oxide arrester, and the other end series connection of described zinc oxide arrester is provided with a rod clearance component.
Specifically, an end of described excellent clearance component is a conductive electrode, the fixedly connected high-voltage line of an end of conductive electrode.
The discharge spacing of described excellent clearance component is 40 ± 5mm, and described excellent clearance component is connected in adjustable metal support the other end by zinc oxide arrester.
Described adjustable metal support one end is fixedly connected on the line insulator steel thumb screw, and the adjustable metal bracket edge has a through hole, and this through hole connects an earth terminal, and this earth terminal reliable ground connects.
The upper end of described line insulator is provided with a fixture that is fixed on the high-voltage line.
Described zinc oxide arrester is a zero-clearance zinc oxide lightning arrester.
This line thunder protection overvoltage protection device can be given full play to the non-linear characteristics of zinc oxide resistance sheet, when adopting zero-clearance zinc oxide lightning arrester, can overcome the discharge arcing that pure clearance lightning-proof protector exists, and burns clearance electrode easily, blows problem such as lead.The structure that it adopts the excellent gap of the outer series connection of zero-clearance zinc oxide lightning arrester makes that this kind gap discharge is relatively stable, and whole line thunder protection overvoltage protection device is the not influence of wind-engaging pendulum, the variation of winter and summer lead in the line, has guaranteed the operate as normal of lightning protection device.Conductive electrode goes for plain conductor and the insulated conductor of 10KV.
When ultra-high-tension power transmission line is subjected to influencing of lightning impulse overvoltage or power-frequency overvoltage; can be before overvoltage reach the critical point of insulator arc-over, the excellent gap discharge of lightning protection overvoltage protection device, zinc oxide arrester action; overvoltage is introduced the earth, guarantee the operate as normal of insulator and lead.In operate as normal, power-frequency voltage is isolated by excellent gap, and the line thunder protection overvoltage protection device does not bear lasting power frequency continued flow, is in resting state, has guaranteed the normal operation of electric power system.
The beneficial effects of the utility model are, the reasonable in design of this line thunder protection overvoltage protection device is applicable to all kinds insulator of 10kV transmission system; it adopts lightning arrester series gap mode; can be according to on-the-spot insulator height, free adjustment, integral installation is convenient.
Below in conjunction with the drawings and specific embodiments the utility model is further elaborated.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Embodiment
As shown in Figure 1; this line thunder protection overvoltage protection device comprises zero-clearance zinc oxide lightning arrester 40; rod gap 50; conductive electrode 60 and adjustable metal support 30; the middle part of this adjustable metal support 30 has connecting screw and connects and composes adjustable; the other end that link Φ 13mm hole is positioned at metallic support 30 is line insulator 20 steel thumb screws one sides; the opposite side of metallic support 30 connects the bottom of zero-clearance zinc oxide lightning arrester 40; the upper end series connection of zinc oxide arrester 40 is provided with a rod clearance component 50; rod clearance component 50 also connects a conductive electrode 60; this conductive electrode connects ultra-high-tension power transmission line, and the conduction that this conductive electrode can be used for plain conductor and insulated conductor is connected.The discharge spacing d of rod clearance component is 40 ± 5mm, and excellent clearance component is by connecting the upper end that gold utensil is connected in zinc oxide arrester.
Claims (6)
1. line thunder protection overvoltage protection device; comprise an adjustable metal support; it is characterized in that described adjustable metal support one end is connected on the line insulator steel thumb screw; the bottom of other end connection-zinc oxide arrester, the other end series connection of described zinc oxide arrester is provided with a rod clearance component.
2. line thunder protection overvoltage protection device according to claim 1, an end that it is characterized in that described excellent clearance component is a conductive electrode, the fixedly connected high-voltage line of an end of conductive electrode.
3. line thunder protection overvoltage protection device according to claim 1, the discharge spacing that it is characterized in that described excellent clearance component is 40 ± 5mm, described excellent clearance component is connected in adjustable metal support the other end by zinc oxide arrester.
4. line thunder protection overvoltage protection device according to claim 1; it is characterized in that described adjustable metal support one end is fixedly connected on the line insulator steel thumb screw; the adjustable metal bracket edge has a through hole, and this through hole connects an earth terminal, and this earth terminal reliable ground connects.
5. line thunder protection overvoltage protection device according to claim 1 is characterized in that the upper end of described line insulator is provided with a fixture that is fixed on the high-voltage line.
6. line thunder protection overvoltage protection device according to claim 1 is characterized in that described zinc oxide arrester is a zero-clearance zinc oxide lightning arrester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201641712U CN201490714U (en) | 2009-07-20 | 2009-07-20 | Line lighting protection overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201641712U CN201490714U (en) | 2009-07-20 | 2009-07-20 | Line lighting protection overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201490714U true CN201490714U (en) | 2010-05-26 |
Family
ID=42429581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201641712U Expired - Fee Related CN201490714U (en) | 2009-07-20 | 2009-07-20 | Line lighting protection overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201490714U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386601A (en) * | 2011-11-09 | 2012-03-21 | 辽宁省电力有限公司阜新供电公司 | Lightning-protection grounding column |
| CN111917094A (en) * | 2020-07-14 | 2020-11-10 | 国网福建省电力有限公司宁德供电公司 | Multifunctional line overvoltage protection device and lightning protection method thereof |
-
2009
- 2009-07-20 CN CN2009201641712U patent/CN201490714U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386601A (en) * | 2011-11-09 | 2012-03-21 | 辽宁省电力有限公司阜新供电公司 | Lightning-protection grounding column |
| CN111917094A (en) * | 2020-07-14 | 2020-11-10 | 国网福建省电力有限公司宁德供电公司 | Multifunctional line overvoltage protection device and lightning protection method thereof |
| CN111917094B (en) * | 2020-07-14 | 2022-06-03 | 国网福建省电力有限公司宁德供电公司 | Multifunctional line overvoltage protection device and lightning protection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20100720 |