CN2657171Y - Alternating current external gap type automatic separate lightning guard - Google Patents
Alternating current external gap type automatic separate lightning guard Download PDFInfo
- Publication number
- CN2657171Y CN2657171Y CN 03213798 CN03213798U CN2657171Y CN 2657171 Y CN2657171 Y CN 2657171Y CN 03213798 CN03213798 CN 03213798 CN 03213798 U CN03213798 U CN 03213798U CN 2657171 Y CN2657171 Y CN 2657171Y
- Authority
- CN
- China
- Prior art keywords
- lightning arrester
- lighting
- crocodile
- proof
- external
- 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
Images
Landscapes
- Insulators (AREA)
Abstract
The utility model relates to lighting-proof protection equipment in high-voltage power transmission and distribution lines. In order to avoid the technical defects existing in the working process of the zinc oxide lighting-proof device, such as the cause of serious aging of the products because of the existence of continual flowing of working efficiency, many hidden trouble for accidents and bad safety performance in the deviating process of lighting-proof, the communion external-clearance type automatic deviation lighting-proof device provided by the technical plan comprises a lighting-proof device body and an external clearance mechanism formed by the air clearance constituting by the ball convexity clearance. The utility model is characterized in high safety performance and long service life, changes the single lighting-proof protection situation of traditional lighting-proof device, can be used for the application of supporting the insulator, and the applying range of the utility model is wider.
Description
Technical field
The utility model relates to and connect a kind of protection equipment---the lightning arrester that is arranged in the high pressure electric line.
Background technology
The lightning arrester of producing at present, using is commonly advanced metal oxide arrester, is called zinc oxide arrester again.Because the voltage-current characteristic excellence of zinc oxide material is in carbofrax material, so this series products can be designed as the gapless structure form.But find in the practical application that there is following some major technology defective in it: when fault appears taking shelter from the thunder in lightning arrester, for itself and power network are broken away from, to guarantee the normal safe operation of power network, designers have designed the special type lightning arrester of part product for this reason, be set with the parts such as bracing frame of heat explosion type or hot melten type disconnector and dockingundocking device in the bottom of lightning arrester body, it is to ruin the electrical connection that lightning arrester that mode or fusing mode will damage breaks away from power network automatically with quick-fried, moment produces a large amount of blast splashes or there is the possibility of hurting sb.'s feelings in slag but breaking away from, for improving the security performance that disconnector breaks away from moment, occurred discharging principle and realized that a kind of pressure that breaks away from automatically discharges the mechanism that comes off with pressure, when lightning-arrest breaking down, automatically come off, disconnect the lightning arrester that damages, as Chinese patent: the patent No. is 02210472.0, name is called " suspension type come off lightning arrester " and has promptly adopted said structure, but its structure construction complexity, mounting condition is limited many, is difficult to application.Another major defect that the arrester without gaps structure exists is: lightning arrester body is directly connected in the power network, resistor valve sheet has to bear the power-frequency voltage effect of electric power system, the degree of aging of resistor valve sheet has been quickened in long-term power frequency continued flow effect, its safe operating life is limited greatly, and directly electrical connection has also caused certain electric power accident hidden danger.In addition, existing lightning arrester all only has single lighting protection function, and can not use as the load supporting insulator; so in assembling; must install with protected equipment is approaching as far as possible,, bring many unnecessary troubles to practical operation so its mounting condition is limited.
The utility model content
For solving the drawback of the existing existing no reliable releasing mechanism of lightning arrester, make lightning arrester body break away from the power-frequency voltage effect simultaneously, the utility model provides a cover alternating current external gap type to break away from the technical scheme of lightning arrester automatically, the major technique content of this technical scheme is: the top electrode link at lightning arrester body is provided with external series gap mechanism, this external series gap mechanism includes mechanism rack and the sphere external series gap that is installed in this support, its mechanism rack is by on some axial dielectric shore supports, two mounting planes constitute down, be installed with a big sphere conductor respectively with the lightning arrester body coaxial line on the opposite flank of two mounting planes, the ball convex surface of two sphere conductors is relative, between form the air gap and separate and be provided with.
In order to make the utility model lightning arrester set up electrical lead by direct horizontal sky, in above-mentioned total technical scheme, the last mounting plane top of this lightning arrester external series gap mechanism is provided with and is used for the fish crocodile formula clamp mechanism that is connected with power line, this fish crocodile formula clamp mechanism is made of the clamp nut on upper and lower crocodile clamping plate that pass bolt and the bolt, has then constituted the wire clamp mouth of fixing cord up and down between the crocodile clamping plate.
The lightning arrester that the utility model patent application provides; though like having entered into the design old road that the lightning arrester gap structure is provided with again; but the setting of the big sphere outer air gap mechanism that the technical program is single; its impact coefficient is 1; so its protective value is improved; and adopt the air gap of big sphere to design, and improved the steady state voltage distribution, improved its temporary overvoltage ability.In addition, this lightning arrester in power network connects, the existence of air insulation clearance; broken away from of the negative effect of electrical network power-frequency voltage to lightning arrester body; make it to become the lightning protection device of no afterflow, thereby only there is the natural aging problem in this lightning arrester, so prolonged its useful life greatly.Secondly, this single external series gap lightning arrester is compared with the arrester without gaps product, and its residual voltage reduces greatly, only be with 75% of electric pressure, therefore just can suitably reduce the insulation tolerance level of other electric equipment, thereby alleviate other power equipment weight, reduce its production cost consumption.Secondly, the technical program has also been created condition for adjusting the external series gap size by the size requirement of power-frequency sparkover voltage.The technical program also has a big major advantage to be: when lightning-arrest the damage appears in lightning arrester, when single-phase arc grounding resonance overvoltage particularly occurring, can rapid high heat fusing by the big sphere conductor of its sphere external series gap mechanism, make the rapid and power network disengaging of lightning arrester body, not only can not cause the lightning arrester body blast, ensured the normal operation of power circuit, and the granule after the sphere conductor fusing is around only becoming scattered about in the very little scope, thereby its use is safer.The fish crocodile formula clamp mechanism of the technical program by being provided with; changed the simple function that traditional lightning arrester only has the anti-overvoltage protection; it also can be used as the load insulator and uses, thus in the power network assembling its installation that condition is set is looser, made things convenient for the electric power of this lightning arrester to install.
Description of drawings
Fig. 1 is vertical sectional structure chart of the utility model lightning arrester
Fig. 2 is the structural representation of another embodiment of fish crocodile formula clamp mechanism.
Embodiment
Alternating current external gap type of the present utility model breaks away from the structure of lightning arrester automatically and forms the external series gap mechanism 2 that includes lightning arrester body 1 and the setting of lightning arrester body 1 top, in order to make this lightning arrester also have the effect that direct stringing supports, the top of clearance mechanism 2 also is provided with fish crocodile formula clamp mechanism 3 outside.So-called lightning arrester body 1 is that some ZnO resistors valve blocks constitute, and it is outer to be that insulation crust wraps up, and two ends are the electrode link.The last link of lightning arrester body is connected with external series gap mechanism 2, this external series gap mechanism 2 is made of jointly the external series gap that is made of big sphere conductor in mechanism rack and the support, mechanism rack wherein is by some axial dielectric pillars 22 and the mounting plane 21 erected by pillar 22 two end supports, 27 installation frame body that constitute, on the opposite flank of last mounting plane 21 and following mounting plane 27, on common neutral, the ball convex surface is fixed with a big sphere conductor 20 relatively respectively, 28, the gap at approaching place between the two sphere conductors then is effective discharging gap, the big I in its gap is according to power-frequency sparkover voltage, change adjustment by the sphere conductor with the screw thread adjustable structure of its mounting and connection parts, the general adjustment arbitrarily in the scope of standard discharge voltage 26-31kv changes.In the present embodiment, also be provided with the fish crocodile formula clamp mechanism that realizes the direct power line support and connection of this lightning arrester with lightning arrester body 1 coaxial line, the upper end that is positioned at external series gap mechanism 2, this fish crocodile formula clamp mechanism is the wire clamp mouth that is made of upper and lower crocodile clamping plate 30,38, its upper and lower crocodile clamping plate 30,38 pass bolt connecting rod 31, by the operation that compresses of the nut 37 realization wire clamp mouths that are connected with bolt thread, circular-arc folder mouth shown in Figure 1 is for directly walking the wire clamp mouth of bare wire; For the electrical lead that is provided with the outer layer insulation foreskin, for the work of simplifying the operation, the wire clamp mouth that Fig. 2 provides by sharp tooth crocodile clamping plate 30 ', 38 ' constitute, promptly on the crocodile clamping plate, be provided with some pointed tooths, its pointed tooth can directly puncture the insulating covering of electrical lead, thereby realizes being electrically connected reliably.
Claims (3)
1, a kind of alternating current external gap type breaks away from lightning arrester automatically, the top electrode link (12) that it is characterized in that lightning arrester body (1) is provided with external series gap mechanism (2), this external series gap mechanism includes mechanism rack and the sphere external series gap that is installed in this support, its mechanism rack is by in some axial dielectric pillars (22) support, following two mounting planes (21,27) constitute, be installed with a big sphere conductor (20 respectively with lightning arrester body (1) coaxial line on the opposite flank of two mounting planes, 28), the ball convex surface of two sphere conductors is relative, between form the air gap and separate and be provided with.
2, lightning arrester according to claim 1, the last mounting plane top that it is characterized in that external series gap mechanism (2) is provided with and is used for the fish crocodile formula clamp mechanism that is connected with power line, this fish crocodile formula clamp mechanism is made of the clamp nut (37) on upper and lower crocodile clamping plate (30,38) that pass bolt and the bolt, has then constituted the wire clamp mouth of fixing cord up and down between the crocodile clamping plate.
3, lightning arrester according to claim 2 is characterized in that the wire clamp mouth is made of sharp tooth crocodile clamping plate (30 ', 38 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213798 CN2657171Y (en) | 2003-06-24 | 2003-06-24 | Alternating current external gap type automatic separate lightning guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213798 CN2657171Y (en) | 2003-06-24 | 2003-06-24 | Alternating current external gap type automatic separate lightning guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2657171Y true CN2657171Y (en) | 2004-11-17 |
Family
ID=34325649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213798 Expired - Fee Related CN2657171Y (en) | 2003-06-24 | 2003-06-24 | Alternating current external gap type automatic separate lightning guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2657171Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518475A (en) * | 2013-09-28 | 2015-04-15 | 成都星河科技产业有限公司 | Distribution network integrated lightning protection system |
| CN106847431A (en) * | 2017-02-13 | 2017-06-13 | 广州中光电子科技有限公司 | A kind of lightning protection insulator departed from failure with aging identification function |
-
2003
- 2003-06-24 CN CN 03213798 patent/CN2657171Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518475A (en) * | 2013-09-28 | 2015-04-15 | 成都星河科技产业有限公司 | Distribution network integrated lightning protection system |
| CN104518475B (en) * | 2013-09-28 | 2017-04-05 | 成都星河科技产业有限公司 | A kind of distribution Integrated Lightning protection System |
| CN106847431A (en) * | 2017-02-13 | 2017-06-13 | 广州中光电子科技有限公司 | A kind of lightning protection insulator departed from failure with aging identification function |
| CN106847431B (en) * | 2017-02-13 | 2018-06-22 | 广州中光电气科技有限公司 | Lightning-protection insulator with fault separation and aging recognition functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106098264A (en) | A kind of 10kV Multifunctional disaster prevention evil insulator and preparation method | |
| CN2796038Y (en) | Pillar type serial gap metal oxide lightning arrester | |
| CN201307473Y (en) | Lightning protector for 10 kV line | |
| CN202473431U (en) | External string pure air gap lightning arrester | |
| CN201348907Y (en) | Lightning protector of 10kV line | |
| CN2852338Y (en) | Composite casing zinc oxide lightning arrester | |
| CN2657171Y (en) | Alternating current external gap type automatic separate lightning guard | |
| CN205943611U (en) | Take pin type composite insulator for 10kV transmission line of voltage -sharing cover | |
| CN204760146U (en) | Anti -icing suspension type composite insulator of lightning protection for 10kV transmission line | |
| CN208985796U (en) | A kind of arrester that failure is visual | |
| CN201222389Y (en) | Electric iron 27.5KV detachable type composite material zinc oxide lightning arrester | |
| CN202940460U (en) | Tower lightning arrester | |
| CN202102814U (en) | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke | |
| CN206117083U (en) | Lightning protection ware strain clamp cluster | |
| CN202013861U (en) | 10 kV outdoor high-voltage current limiting fuse | |
| CN205862897U (en) | A kind of 10kV Multifunctional disaster prevention evil insulator | |
| CN204732237U (en) | For the lightning-protection ice needle type composite insulator of 10kV transmission line | |
| CN209199696U (en) | A kind of novel metal oxide arrester | |
| CN111786261A (en) | A discharge gap device for circuit lightning protection | |
| CN207052387U (en) | A kind of distribution line overvoltage protection | |
| CN207442184U (en) | Low residual voltage, deterioration visible fixed external series gap arrester | |
| CN206727419U (en) | One kind carries fixed external series gap type arrester | |
| CN217902823U (en) | 10kV fault indication type insulator lightning arrester | |
| CN201490714U (en) | Line lighting protection overvoltage protector | |
| CN218241461U (en) | Lightning protection device for 10kV rod-shaped composite insulator |
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: LIAONING HUALONG ELECTRIC POWER TECHNOLOGY CO., LTD. Assignor: Liu Xiaoqiang Contract record no.: 2010210000012 Denomination of utility model: Alternating current external gap type automatic separate lightning guard Granted publication date: 20041117 License type: Exclusive License Record date: 20100308 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041117 Termination date: 20110624 |