CN2862466Y - Lightning strike protector for drop-down type protector in high-voltage transmission line - Google Patents
Lightning strike protector for drop-down type protector in high-voltage transmission line Download PDFInfo
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- CN2862466Y CN2862466Y CN 200520099645 CN200520099645U CN2862466Y CN 2862466 Y CN2862466 Y CN 2862466Y CN 200520099645 CN200520099645 CN 200520099645 CN 200520099645 U CN200520099645 U CN 200520099645U CN 2862466 Y CN2862466 Y CN 2862466Y
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- transmission line
- lightning strike
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Abstract
The utility model relates to a falling insurance lightning stroke protector for high-voltage transmission line. It is characterized in that the protector comprises a falling fuse, an inductance and lightning stroke protector; one end of the inductance is connected to the high-voltage transmission line, while the other end is connected in series to the falling fuse; the lightning stroke protector is joining-up in parallel with the connecting end of the falling fuse, the inductance and the high-voltage transmission line. The connecting end of the falling fuse and lightning stroke protector is connected to the user device end; the falling lightning stroke protector can discharge the invading thunderbolt current very well and has very positive protective effect to the falling insurance; non-fault tripping power failure caused by lightning stroke can be avoided; the utility model can be widely used to the power network of large, medium and small sized cities and reduce the loss caused by lighting stroke to power network.
Description
Technical field
The utility model relates to a kind of anti-lightning strike protector, particularly ultra-high-tension power transmission line falling fuses lightning strike protection device.
Background technology
Present lightning-protected product both domestic and external all is the low-voltage lightning-protected product; mainly be to be low-voltage (～220V at operating voltage;～380V) equipment protects; and high voltage installation main at present installing protection gap or tube type arrester protect; but it exists the temporary overvoltage ability to bear poor, damages shortcomings such as rate of explosion height and life-span weak point.The outdoor drop-out type safeties of ultra-high-tension power transmission line just do not have protector that it is protected at all; when induction lightening stream when ultra-high-tension power transmission line is invaded; the macro-energy electric current of thunder and lightning moment causes the blown fuse of falling fuses the falling fuses would trip to cause power failure; and the fusing of fuse can not be played the effect of anti-thunder and lightning, therefore national product has been caused very serious harm and immeasurable loss.
In recent years some bibliographical informations some some ultra-high-tension power transmission line lightning protection embodiments are disclosed; as: " high voltage technique " .2003; 29 (11) .-59-60; at mountain area transmission line damage to crops caused by thunder fault serious situation comparatively; can better solve the thunderbolt problem at electric power line pole tower top installing controlled discharge lightning rod, and introduce controlled discharge lightning rod installation and operation observation procedure." Guizhou power technology " 2003,6 (12) .-16-18, introduced the lightning protection principle of leakage conductor, and the leakage conductor in 3 years of hanging net operation carried out the tracking statistical analysis, the lightning protection effect of leakage conductor is made certainly, set forth simultaneously leakage conductor installation site, mode, separately very big influence is arranged to improving line lightning resisting level.
Chinese patent also discloses some transmission line lightning stroke protectors; as 1; [application (patent) number] CN99251729.X[title] the special-purpose lightning-arrest extinguishing arc assembling device of high voltage transmission line [application (patent right) people] Xinghe Science and Technology Industry Co., Ltd., Chengdu; claims 1; the special-purpose lightning-arrest arc-extinction device of a kind of ultra-high-tension power transmission line; include lightning rod; impedance device; discharger; assemblies such as insulation column constitute; it is characterized in that: vertically device has hypomere to have the special-purpose lightning rod (7) of impedance device (6) at circuit (1) top; both sides device at cat head lightning rod (7) has the high voltage transmission line A that sets up direction and the underlying of iron tower top that is erected by two supports insulative pillars (3); B; the lightning conducter (5) of the belt discharge device of C direction unanimity, and the lightning rod (7) on two lightning conducters (5) and impedance device (6) top links and forms one.2, [application (patent) number] CN00253643.9[title] leakage conductor [application (patent right) people] Chen Jiandong [summary] leakage conductor of the present utility model provides a kind of lightning arrester that prevents that the overhead metal wire road feel should be struck by lightning, it is made up of varistor, resistor and charge inducing leakage path, an end that it is characterized in that varistor and resistor all has a brace, uses screw fixings.The other end of varistor and resistor is all made common binding post form; be used for fixing and lightning-arrest body between connecting line; wherein; the binding post of resistor is used for fixing the connecting line of leakage conductor and lightning-arrest body upper end; the binding post of varistor is used for fixing the connecting line of going into the ground part with the body lower end of taking shelter from the thunder; it can make the electric charge of piling up on the circuit constantly be released; reach the effect 3 that prevents induction lightening; the inventor of this patent unit has also applied for the patent of electric line dissipation array in 1991; [application (patent) number] CN91216547.2[applies for (patent right) people] Xinghu Road ,Nanning City ,Guangxi Zhuang Autonomousnationality District 8-8 number [summary] the utility model of Wang Dongsheng [address] provide a kind of and can protect transmission line; thunder and lightning arrester on power consumption equipment and the carrier line; its structure is electric capacity and the shell formation that is provided with the inductance winding that is connected on the circuit and centers on three metallic plates formation of inductance winding; inductance; form a pi type filter between electric capacity and the grounding electrode, and can between three metallic plates, electrode needle be set.The external thunder and lightning that this dissipation array can be eliminated overshoot frequency, electric current, voltage effectively disturbs, and has protected the safety of transmission line, power consumption equipment and communication apparatus.The dissipation array of [principal claim] a kind of power circuit and carrier line, it is characterized in that comprising inductance winding 8 and constitute around electric capacity and shell that the three-ply metal 3,9,4 of inductance winding forms, the lead-in clamp 1 of inductance winding 8 and output wiring terminal 10 are connected on the two ends of power transmission line or carrier wire respectively, outer metallic plate 3 and interior metallic plate 9 also are connected on the two ends of inductance winding 8 respectively, and another piece grounding plate 4 is an earth electrode.
Summary of the invention
The purpose of this utility model is that lightning protection is carried out in high-voltage drop type insurance, thereby guarantees the power failure of not tripping of the ultra-high-tension power transmission line back switch that is subjected to that thunderbolt does not disconnect, high-tension distribution equipment is struck by lightning.
Technical scheme to be solved in the utility model is: ultra-high-tension power transmission line falling fuses lightning strike protection device is made of fuse switch, inductance and lightning strike protection device; inductance one end is connected with ultra-high-tension power transmission line; the other end is serially connected on the fuse switch; the lightning strike protection device is attempted by the link of fuse switch and inductance and ultra-high-tension power transmission line, and fuse switch is connected termination subscriber equipment end with the lightning strike protection device.
Described inductance is made by impedance coil, and wrap up with insulating resin the outside, and its parameter is determined according to transmission line rated operational current size.
Described lightning strike protection device is by the central metal pipe; discharge tube 9; insulating rod 10; metal joint 1; conductor 2; dead ring 3; insulation board 4; insulating cylinder 6 constitutes; conductor can be made with metal mesh belt; the central metal pipe is divided into two sections; be epimere metal tube 18 and hypomere metal tube 19; be separated by with insulating rod 10 between the two sections metal tube; there are several discharge tubes 9 to be connected to the two sections metal tube at the position of insulating rod 10; metal joint 1 is connected with conductor 2 and is contained in epimere metal tube 18 tops; nonconducting resin 5 encapsulation of central metal outer tube layer insulating cylinder 6 usefulness are (as adopting glass fibre reinforced plastics casing; all-sealed structure); dead ring and insulation board are contained on the epimere metal tube 18, and hypomere metal tube 19 also is equipped with metal joint 1 and is connected with the custom power line with conductor.
Described fuse switch adopts the existing normally used fuse of power department, and its parameter is according to the voltage design of transmission line.
Operation principle of the present utility model is: adopt high power capacity, highly sensitive lightning protection component to constitute the lightning current leakage path; most lightning currents are released by the lightning protection loop; make by fuse electric current in allowed limits, the tripping operation of being failure to actuate of protection falling fuses.When the ultra-high-tension power transmission line operate as normal; the lightning strike protection device is not worked; element in the circuit is in the state that ends; power current enters into user side by ultra-high-tension power transmission line by the falling fuses silk, guarantees that falling fuses can unusual situation occur at ultra-high-tension power transmission line and can play a protective role.When situations such as appearance thunderbolt; when the induction overcurrent that thunder and lightning causes, overvoltage process fuse; can form a voltage difference at the two ends of fuse, because protector is in parallel with fuse, this voltage difference also is superimposed upon the two ends of protector; when the value of voltage difference reaches the operation voltage value of element in the protector; the protection component short circuit constitutes new current channel, makes most overcurrent flow through protection component; fuse is shunted, prevented that fuse from fusing because of overcurrent.After overcurrent, overvoltage finish; the voltage difference at fuse two ends returns to zero again; the voltage difference at protector two ends also returns to zero simultaneously; protection component quits work; recover initial cut-off state; power current enters into user side by ultra-high-tension power transmission line by the falling fuses silk, guarantees that falling fuses can unusual situation occur at ultra-high-tension power transmission line and can play a protective role.
Concrete operations are as follows: when making protector, we take off the fall insurance of ultra-high-tension power transmission line fuse earlier, and its Lisuzu nationality's danger part is carried out lightning Protection Design processing.The first half copper pipe and the latter half copper pipe have been increased, two parts copper pipe does not interconnect when mounted, copper sleeve in the insurance forward part, with the copper mesh band preceding copper sleeve and the first half copper pipe that processes are connected, copper sleeve in the insurance rear section, with the copper mesh band back copper sleeve is connected with the first half copper pipe that processes, a plurality of discharge tubes are as leadage circuit in series connection in the middle of these two parts.For guaranteeing that most lightning currents enter leakage path smoothly, therefore use oxygen welding to fetch connection, to guarantee the tight connection between the resultant metal parts, reduce contact resistance.When lightning current was invaded, the copper mesh band was just introduced the lightning current leakage path that ceramic gas discharge tube constitutes with most of lightning current, and released lightning current by discharge tube this moment.See accompanying drawing 1.
Under the ultra-high-tension power transmission line normal operating conditions, the voltage drop on the falling fuses is very low, and protector can not react action; When lightning current is invaded, the conducting of protector preferential reaction, lightning current is released by the protector loop.In falling fuses, we have connected an inductance, and (specific as follows: inductance is made by impedance coil, and impedance coil is serially connected on the high-voltage fuse.) on the sudden change magnetic field around the lightning current, produce very strong induced current, lightning current is played strong inhibition hindrance function, cause most lightning currents directly not released by the protector loop by falling fuses; Have only when ultra-high-tension power transmission line and break down and when short circuit of user power utilization equipment or overload, the effect that would trip plays protection circuit and power consumption equipment just takes place falling fuses.
The utility model is directly to be loaded on the outer ultra-high-tension power transmission line falling fuses device of family (interior), need not install especially, directly is contained on the support.Have characteristics such as flexible for installation, easy to use.
The characteristics of the utility model falling fuses lightning strike protection device:
1, response speed is fast, through-current capacity is big, the life-span is long, applied range, easy to install;
2, adopt glass fibre reinforced plastics casing, good airproof performance has dustproof, anticorrosion, function such as explosion-proof.
3, can well release and fall into the lightning current of invading, falling fuses is played a very good protection, avoid because of being subjected to thunderbolt to cause non-fault tripping operation power outage.
4, can widespread in each large, medium and small urban distribution network of the whole nation, can reduce the loss that the thunder and lightning disaster causes electrical network, the economic development of country is had significant meaning.
Description of drawings
Fig. 1 is the structural representation of the utility model lightning strike protection device.
Fig. 1 is fuse switch, inductance and lightning strike protection device circuit connection diagram.
Fig. 3 is a lightning strike protection device mounting means schematic diagram.
Embodiment
From Fig. 1, recognize; the utility model ultra-high-tension power transmission line falling fuses lightning strike protection device is made of fuse switch, inductance and lightning strike protection device; inductance 14 1 ends are connected with ultra-high-tension power transmission line; the other end is serially connected on the fuse switch; the lightning strike protection device is attempted by the link of fuse switch and inductance and ultra-high-tension power transmission line, and fuse switch is connected termination subscriber equipment end with the lightning strike protection device.
Recognize that from Fig. 2 lightning strike protection device 12 can directly be loaded on the outer ultra-high-tension power transmission line falling fuses device of family (interior), need not install especially, directly is contained on the support 11, has characteristics such as flexible for installation, easy to use.
From Fig. 3, recognize; the lightning strike protection device is by the central metal pipe; discharge tube 9; insulating rod 10; metal joint 1; conductor 2; dead ring 3; insulation board 4; insulating cylinder 6 constitutes; conductor can be made with metal mesh belt; the central metal pipe is divided into two sections; be epimere metal tube 18 and hypomere metal tube 19; be separated by with insulating rod 10 between the two sections metal tube; there are several discharge tubes 9 to be connected to the two sections metal tube at the position of insulating rod 10; metal joint 1 is connected with conductor 2 and is contained in epimere metal tube 18 tops; nonconducting resin 5 encapsulation of central metal outer tube layer insulating cylinder 6 usefulness are (as adopting glass fibre reinforced plastics casing; all-sealed structure); dead ring and insulation board are contained on the epimere metal tube 18, and hypomere metal tube 19 also is equipped with metal joint 1 and is connected with the custom power line with conductor.
The utility model has been manufactured experimently sample in conjunction with reality, uses distinct methods to do a large amount of experiments at the thunder and lightning test site, and simulation lightning current impact experiment situation is as follows:
Simulation lightning current impact experiment situation
| Simulation lightning current (10/350 μ S) | ||
| Impulse current | Impact number of times | Whether falling fuses is intact |
| 10kA | 10 times | Insure intact |
| 20kA | 10 times | Insure intact |
| 40kA | 10 times | Insure intact |
Claims (4)
1, a kind of ultra-high-tension power transmission line falling fuses lightning strike protection device; it is characterized in that: constitute by fuse switch, inductance and lightning strike protection device; inductance one end is connected with ultra-high-tension power transmission line; the other end is serially connected on the fuse switch; the lightning strike protection device is attempted by the link of fuse switch and inductance and ultra-high-tension power transmission line, and fuse switch is connected termination subscriber equipment end with the lightning strike protection device.
2, ultra-high-tension power transmission line falling fuses lightning strike protection device according to claim 1, it is characterized in that: inductance is made by impedance coil, and wrap up with insulating resin the outside.
3; ultra-high-tension power transmission line falling fuses lightning strike protection device according to claim 1; it is characterized in that: described lightning strike protection device is by the central metal pipe; discharge tube (9); insulating rod (10); metal joint (1); conductor (2); dead ring (3); insulation board (4); insulating cylinder (6) constitutes; conductor can be made with metal mesh belt; the central metal pipe is divided into epimere metal tube 18 and hypomere metal tube (19); be separated by with insulating rod (10) between the two sections metal tube; there are several discharge tubes (9) to be connected to the two sections metal tube at the position of insulating rod (10); metal joint (1) is connected with conductor (2) and is contained in epimere metal tube (18) top; the nonconducting resins of central metal outer tube layer insulating cylinder 6 usefulness (5) encapsulation; dead ring and insulation board are contained on the epimere metal tube (18), and hypomere metal tube (19) also is equipped with metal joint (1) and is connected with the custom power line with conductor.
4, ultra-high-tension power transmission line falling fuses lightning strike protection device according to claim 1 is characterized in that: described fuse switch adopts the existing normally used fuse of power department.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099645 CN2862466Y (en) | 2005-12-23 | 2005-12-23 | Lightning strike protector for drop-down type protector in high-voltage transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099645 CN2862466Y (en) | 2005-12-23 | 2005-12-23 | Lightning strike protector for drop-down type protector in high-voltage transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2862466Y true CN2862466Y (en) | 2007-01-24 |
Family
ID=37660095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520099645 Expired - Fee Related CN2862466Y (en) | 2005-12-23 | 2005-12-23 | Lightning strike protector for drop-down type protector in high-voltage transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2862466Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035664A (en) * | 2021-02-06 | 2021-06-25 | 安徽省昌盛电子有限公司 | Insulated wire winding die type temperature fusing resistor |
| CN115986705A (en) * | 2022-12-21 | 2023-04-18 | 国网电力科学研究院武汉南瑞有限责任公司 | Method, device, medium and system for limiting lightning overvoltage of direct current transmission line |
-
2005
- 2005-12-23 CN CN 200520099645 patent/CN2862466Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035664A (en) * | 2021-02-06 | 2021-06-25 | 安徽省昌盛电子有限公司 | Insulated wire winding die type temperature fusing resistor |
| CN113035664B (en) * | 2021-02-06 | 2024-01-12 | 安徽省昌盛电子有限公司 | Insulated wire winding mould type temperature fusing resistor |
| CN115986705A (en) * | 2022-12-21 | 2023-04-18 | 国网电力科学研究院武汉南瑞有限责任公司 | Method, device, medium and system for limiting lightning overvoltage of direct current transmission line |
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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: 20070124 Termination date: 20121223 |