CN102957117A - Lightning-proof tension insulator string - Google Patents
Lightning-proof tension insulator string Download PDFInfo
- Publication number
- CN102957117A CN102957117A CN2011102494619A CN201110249461A CN102957117A CN 102957117 A CN102957117 A CN 102957117A CN 2011102494619 A CN2011102494619 A CN 2011102494619A CN 201110249461 A CN201110249461 A CN 201110249461A CN 102957117 A CN102957117 A CN 102957117A
- Authority
- CN
- China
- Prior art keywords
- insulator
- string
- starting rod
- lightning protection
- strain
- 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.)
- Pending
Links
Images
Landscapes
- Insulators (AREA)
Abstract
The invention discloses a lightning-proof tension insulator string which comprises a tension wire clamp and an insulator. The lightning-proof tension insulator string further comprises a current resister, an arc suppression ball and an arc starting rod. The arc starting rod is disposed on one side of the insulator, close to the tension wire clamp. The current resister is disposed on one side of the insulator, far away from the tension wire clamp. The arc starting rod, the current resister and the arc suppression ball are collinear. The lightning-proof tension insulator string has the functions of preventing line breakage by lightning stroke, tripping by lightning stroke, resisting to tension, testing and earthing. The lightning-proof tension insulator string is simple to construct and highly safe and reliable, and bridges the domestic and abroad gap of tension section lightning protection.
Description
Technical field
The present invention relates to a kind of lightning protection device, particularly relate to a kind of lightning protection strain insulator-string for overhead transmission line bare wire or insulated conductor strain section.
Background technology
Cause the overhead distribution fault in order to reduce the reasons such as trees, bird pest, accumulated snow, improve the operation of power networks reliability, more external developed countries gradually adopt suspended insulated guide wire from the later stage in the sixties, China begins urban distribution network is implemented the insulating pilot from the eighties, and the nineties begins to apply.
After electric line is widely used insulated conductor, although solved the safety problem in plain conductor electric current corridor, but the faults such as electric line lightning-caused breaking, tripping operation still have generation, particularly south China is regional, the meteorology that lightning flashes and thunder rumbles is more frequent, and it is especially serious to cause thus electric network fault, lightning-caused breaking rate the line is busy 96.8% of road lightning fault, tripping rate with lightning strike is high frightful especially, and national economy has been caused certain loss.
Insulated conductor breakage caused by lightning stroke mechanism: the thunderbolt resistance characteristics of insulated conductor has been compared obviously different from plain conductor.When direct lightning strike or lightning induced voltage acted on plain conductor and cause insulator arc-over, the power frequency short circuit current electric arc that continues moved to deviating from the power supply direction along wire under electrodynamic effect, can the serious burn wire.Insulated conductor is then different, lightning overvoltage at first punctures wire insulation and then causes insulator arc-over, breakdown insulating barrier is a Pinhole-shaped, the obstruct that the power frequency short circuit current electric arc that continues is insulated on every side, the arc root can only burn at the pin hole place, will be by neat blowing at extremely short time inside conductor.
Expert and the producer of for many years electric power system are constantly inquired into, and are studied and develop for line thunder protection specially, particularly insulator on the straight line pole have been carried out Lightning Transformation, and have obtained significant effect, have greatly improved the distribution operational reliability.But up to the present tension-resistant rod also not yet used lightning protection device, strain section often occurs damaged by lightning-caused breaking accident, tripping operation fault and insulator.
Summary of the invention
The technical problem to be solved in the present invention is in order to overcome the prior art strain section and to be struck by lightning, and the defective of conductor cord disconnection or line tripping occurs easily, and a kind of multifunctional lightning protection strain insulator-string is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of lightning protection strain insulator-string, comprise a strain clamp and an insulator, its characteristics are: described strain insulator-string also comprises bluff body, extinguishing arc ball and starting rod, described starting rod is arranged on described insulator near a side of strain clamp, described bluff body is located at insulator away from a side of strain clamp, and described starting rod, bluff body and extinguishing arc ball are located on the straight line.
Preferably, described starting rod stretches out to the direction of extinguishing arc ball, and forms discharge channel between the extinguishing arc ball.
Preferably, ground loop also is equipped with in described starting rod bottom.
Preferably, described ground loop inoperative position is wrapped up by the electrically insulating silicone rubber material.
Preferably, described strain insulator-string also comprises the ground loop briquetting, and ground loop is pressed by described ground loop briquetting and is fixed on the insulator sidepiece, and described starting rod and ground loop briquetting are spirally connected.
Preferably, described strain insulator-string also comprises dead ring, support, upper holder block and lower lock block, be bolted between upper holder block and the lower lock block, with support be pressed on insulator away from the strain clamp end, support is fixedly connected with dead ring, and described bluff body is fixedly connected with dead ring.
Preferably, described starting rod comprises that also one is installed on the starting rod guard shield on the starting rod.
Preferably, ground loop and vertical ground direction with an angle, angular range is 15 ° to 30 °.
Preferably, described extinguishing arc ball is shaped as sphere or taper.
Preferably, the extinguishing arc ball is connected with the bluff body spiral.
Positive progressive effect of the present invention is: multifunctional lightning protection strain insulator-string of the present invention can prevent lightning-caused breaking, lightning stroke trip and possess that strain insulator pulls and supports, the electrical verification grounding function.The product construction is simple, and security reliability is high.
Description of drawings
Fig. 1 is the overall structure schematic diagram of lightning protection strain insulator-string under specific embodiment of the present invention.
Fig. 2 is the schematic diagram of the starting rod in the lightning protection strain insulator-string shown in Figure 1.
Fig. 3 is ground loop in the lightning protection strain insulator-string shown in Figure 1 and the schematic diagram of ground loop briquetting.
Fig. 4 is starting rod and the ground loop briquetting guard shield schematic diagram in the lightning protection strain insulator-string shown in Figure 1.
Fig. 5 is the insulator hardware guard shield schematic diagram in the lightning protection strain insulator-string shown in Figure 1.
Fig. 6 is the strain clamp cover schematic diagram in the lightning protection strain insulator-string shown in Figure 1.
Fig. 7 a and Fig. 7 b are the schematic diagrames of the upper and lower briquetting in the lightning protection strain insulator-string shown in Figure 1.
Fig. 8 a and Fig. 8 b are the schematic diagrames of the dead ring in the lightning protection strain insulator-string shown in Figure 1.
Fig. 9 a and Fig. 9 b are the support schematic diagrames in the lightning protection strain insulator-string shown in Figure 1.
Figure 10 is bluff body in the lightning protection strain insulator-string shown in Figure 1 and the structural representation of extinguishing arc ball.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Fig. 1 is the overall structure schematic diagram of lightning protection strain insulator-string under specific embodiment of the present invention, and the particular location of other each figure parts in strain insulator-string can be understood with reference to figure 1.This strain insulator-string comprises insulator 1, bluff body 6, starting rod 9 and strain clamp 11, and bluff body 6 is provided with extinguishing arc ball 7 near the starting rod end.Described starting rod 9 is arranged on insulator 1 near a side of strain clamp 11, and described bluff body is located at insulator away from a side of strain clamp, and starting rod, bluff body and extinguishing arc ball are located on the straight line.Starting rod 9 stretches out to the direction of extinguishing arc ball 7, thereby and forms discharge channel between the extinguishing arc ball.Be connected by gold utensil 15 conductions between starting rod 9 and the strain clamp 11.
When near the electric wire the strain insulator-string is subject to being struck by lightning, direct lightning strike or lightning induced voltage act on wire, under electrodynamic effect, power frequency short circuit current electric arc moves to deviating from the power supply direction along wire, at this moment, when arc current passes through strain insulator-string, form discharge channel between starting rod 9 and the extinguishing arc ball 7, electric arc is introduced extinguishing arc ball 7 and bluff body 6, can be in the time of its waveform pass zero point when power frequency continued flow produces automatically blow-out under the effect at bluff body, thereby outage or the trip accident of having avoided thunderbolt to cause.
Fig. 2 is the schematic diagram of the starting rod in the lightning protection strain insulator-string, and Fig. 3 is ground loop in the lightning protection strain insulator-string and the schematic diagram of ground loop briquetting.In a preferred embodiment of the invention, starting rod 9 is equipped with on the starting rod end top of insulator 1, and ground loop 13 and ground loop briquetting 14 are equipped with in the bottom.Ground loop briquetting 14 is pressed on ground loop 13 on the insulator 1, and starting rod 9 and ground loop briquetting 14 are connected by bolted.The inoperative position of ground loop 13 is wrapped up by the electrically insulating silicone rubber material.
In one embodiment of the present of invention, ground loop 13 and vertical ground direction with an angle, angular range is 15 °-30 °, to avoid the distance between wire and the ground loop 13 too small.The existence of this angle can increase the visual effect of workmen's hanging earthing conductor, constructability.
Fig. 4 is starting rod and the ground loop briquetting guard shield schematic diagram in the lightning protection strain insulator-string.This starting rod and ground loop briquetting guard shield 8 cover starting rod, ground loop 13 and ground loop briquetting 14, leave a discharge duct at the starting rod bulb end of guard shield, thereby are convenient to form discharge channel between arc baseball head and the extinguishing arc ball.
Fig. 5 is the insulator hardware guard shield schematic diagram in the lightning protection strain insulator-string, and Fig. 6 is the strain clamp cover schematic diagram in the lightning protection strain insulator-string.Be connected by insulator hardware 15 between insulator 1 and the strain clamp 11, starting rod 9 conducts electricity with strain clamp 11 by insulator hardware 15 and is connected.Strain clamp 11 exposed parts and insulator hardware 15 exposed parts are covered by strain clamp cover 12 and insulator hardware guard shield 10 respectively.In a preferred embodiment of the invention, strain clamp 11 is wedge strain resistance cable clamps.Be appreciated that ground; strain clamp can be the applicable any model specification of power industry; strain clamp 11 and strain clamp cover 12 can the corresponding changes according to the specification of line conductor; as long as can be connected by gold utensil with insulator and reach lightning protection effect with starting rod conduction, all within protection scope of the present invention.
Fig. 7 a, 7b are the schematic diagrames of the upper and lower briquetting in the lightning protection strain insulator-string, and Fig. 8 a, 8b are the schematic diagrames of the dead ring in the lightning protection strain insulator-string, and Fig. 9 a, 9b are the support schematic diagrames in the lightning protection strain insulator-string.In one embodiment of the invention, bluff body 6 and 7 fixed installations of extinguishing arc ball, bluff body 6 the other end are installed on the dead ring 5, dead ring 5 supports by support 4, bluff body 6 and extinguishing arc ball 7 are by dead ring 5 unsettled ends that are fixed on insulator 1, stand opposite each other at a distance across insulator with the starting rod bulb of starting rod 9, form discharge channel.Be bolted between upper holder block 3 and the lower lock block 2, with support 4 be pressed on insulator away from the strain clamp end.Insulator 1 be fixed on the stiff end of tension-resistant rod with normal form of construction work away from the strain clamp end.
Figure 10 is bluff body in the lightning protection strain insulator-string and the structural representation of extinguishing arc ball, and in one embodiment of the invention, bluff body 6 is installed with extinguishing arc ball 7 spirals, and the shape of extinguishing arc ball 7 can be spherical, taper or other shapes.
In one embodiment of the invention, keep one section air gap between starting rod 9 and the extinguishing arc ball 7.This air gap width should be unlikely to discharge in sudden and violent or wet weather so that keep the distance of safety between starting rod and the extinguishing arc ball, can when the electric wire voltage fluctuation, produce discharge channel between assurance starting rod and the extinguishing arc ball again simultaneously.The full skirt of insulator 1 can be according to the corresponding change full skirt of power transmission and distribution electric pressure quantity, size and insulator length.The width of air gap is done corresponding adjustment along with insulator length.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Among the present invention, but above-mentioned optimum condition combination in any on the basis that meets this area general knowledge namely gets each preferred embodiment of the present invention.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present invention and essence, but these changes and modification all fall into protection scope of the present invention.
Claims (10)
1. lightning protection strain insulator-string, comprise a strain clamp and an insulator, it is characterized in that: described strain insulator-string also comprises bluff body, extinguishing arc ball and starting rod, described starting rod is arranged on described insulator near a side of strain clamp, described bluff body is located at insulator away from a side of strain clamp, and described starting rod, bluff body and extinguishing arc ball are located on the straight line.
2. lightning protection strain insulator-string as claimed in claim 1, it is characterized in that: described starting rod stretches out to the direction of extinguishing arc ball, and forms discharge channel between the extinguishing arc ball.
3. lightning protection strain insulator-string as claimed in claim 1 or 2, it is characterized in that: ground loop also is equipped with in described starting rod bottom.
4. lightning protection strain insulator-string as claimed in claim 3, it is characterized in that: described ground loop inoperative position is wrapped up by the electrically insulating silicone rubber material.
5. lightning protection strain insulator-string as claimed in claim 3, it is characterized in that: described strain insulator-string also comprises the ground loop briquetting, and ground loop is pressed by described ground loop briquetting and is fixed on the insulator sidepiece, and described starting rod and ground loop briquetting are spirally connected.
6. lightning protection strain insulator-string as claimed in claim 1 or 2, it is characterized in that: described strain insulator-string also comprises dead ring, support, upper holder block and lower lock block, be bolted between upper holder block and the lower lock block, with support be pressed on insulator away from the strain clamp end, support is fixedly connected with dead ring, and described bluff body is fixedly connected with dead ring.
7. lightning protection strain insulator-string as claimed in claim 1 or 2, it is characterized in that: described starting rod comprises that also one is installed on the starting rod guard shield on the starting rod.
8. lightning protection strain insulator-string as claimed in claim 1 or 2 is characterized in that: ground loop and vertical ground direction with an angle, angular range is 15 ° to 30 °.
9. lightning protection strain insulator-string as claimed in claim 1 or 2 is characterized in that: described extinguishing arc ball be shaped as sphere or taper.
10. lightning protection strain insulator-string as claimed in claim 1 or 2, it is characterized in that: the extinguishing arc ball is connected with the bluff body spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102494619A CN102957117A (en) | 2011-08-26 | 2011-08-26 | Lightning-proof tension insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102494619A CN102957117A (en) | 2011-08-26 | 2011-08-26 | Lightning-proof tension insulator string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102957117A true CN102957117A (en) | 2013-03-06 |
Family
ID=47765543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102494619A Pending CN102957117A (en) | 2011-08-26 | 2011-08-26 | Lightning-proof tension insulator string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102957117A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779018A (en) * | 2014-01-13 | 2015-07-15 | 王臻 | Puncture anti-arc tension string |
| CN106451299A (en) * | 2015-08-10 | 2017-02-22 | 上海兆邦电力器材有限公司 | Puncture grounding insulation strain clamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04296412A (en) * | 1991-03-27 | 1992-10-20 | Ngk Insulators Ltd | Lightning insulator device |
| JPH10255570A (en) * | 1997-03-13 | 1998-09-25 | Mitsubishi Electric Corp | Arrester |
| CN201438627U (en) * | 2009-03-17 | 2010-04-14 | 上海兆邦电力器材有限公司 | Anti-lightning insulator strain clamp string |
| CN101699573A (en) * | 2009-10-24 | 2010-04-28 | 山东迅实电气有限公司 | Lightning arrester insulator for overhead wire insulated conductor |
-
2011
- 2011-08-26 CN CN2011102494619A patent/CN102957117A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04296412A (en) * | 1991-03-27 | 1992-10-20 | Ngk Insulators Ltd | Lightning insulator device |
| JPH10255570A (en) * | 1997-03-13 | 1998-09-25 | Mitsubishi Electric Corp | Arrester |
| CN201438627U (en) * | 2009-03-17 | 2010-04-14 | 上海兆邦电力器材有限公司 | Anti-lightning insulator strain clamp string |
| CN101699573A (en) * | 2009-10-24 | 2010-04-28 | 山东迅实电气有限公司 | Lightning arrester insulator for overhead wire insulated conductor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779018A (en) * | 2014-01-13 | 2015-07-15 | 王臻 | Puncture anti-arc tension string |
| CN106451299A (en) * | 2015-08-10 | 2017-02-22 | 上海兆邦电力器材有限公司 | Puncture grounding insulation strain clamp |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203466475U (en) | Enclosed transformer platform frame | |
| CN203250598U (en) | Anti-thunder tension insulator | |
| CN201307473Y (en) | Lightning protector for 10 kV line | |
| CN105514802A (en) | Two-stage series gap lightning flashover protector capable of being replaced in electrified mode | |
| CN203445579U (en) | Lightning protection device for cable terminal | |
| CN104332935A (en) | 10kV distribution network line anti-thunder protection device allowing electrified replacement | |
| CN209199692U (en) | A kind of tension-resistant rod external series gap metal oxide arrester | |
| CN102957117A (en) | Lightning-proof tension insulator string | |
| CN204290238U (en) | The Intelligent-counting type lightning-protection break wire device of automatic separating fault | |
| CN204012185U (en) | The multi-functional lightning arrester of a kind of overhead transmission line adjustable clearance | |
| CN202102814U (en) | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke | |
| CN202940460U (en) | Tower lightning arrester | |
| CN206117083U (en) | Lightning protection ware strain clamp cluster | |
| CN102354588A (en) | Lightning protection supporting insulator for contact network | |
| CN205646747U (en) | 800 kilovolt direct current line gap installation device | |
| CN205141649U (en) | Over -voltage protector | |
| CN204496992U (en) | A kind of insulator supports fixed interval (FI) overvoltage protection device | |
| CN201243159Y (en) | Paracentesis type external clearance arrester | |
| CN201260026Y (en) | Lightning protector with series interval | |
| CN204012615U (en) | A kind of Broken of Overhead Insulation Lines By Lightning protector | |
| CN204517391U (en) | A kind of faulty indication protector | |
| CN202678010U (en) | Novel lightning protection device | |
| CN203481768U (en) | Spherical fixed outer-gap lightning arrester for 10kV system insulating overhead line tension rod | |
| CN203276980U (en) | Isolation voltage adjustable insulator string used for electric power experiment and applied to lightning protection research | |
| CN208337122U (en) | A kind of 10kV suspended insulated guide wire with the anti-lightning strike broken string of shielded layer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130306 Assignee: Shanghai Zhaobang Electrical Material Co., Ltd. Assignor: Wang Zhefei Contract record no.: 2012310000096 Denomination of invention: Lightning-proof tension insulator string License type: Exclusive License Record date: 20120615 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |