CN103594210A - Multi-gap self-swelling strong-air-current longitudinal blow-out arc anti-thunder protecting device - Google Patents
Multi-gap self-swelling strong-air-current longitudinal blow-out arc anti-thunder protecting device Download PDFInfo
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- 239000012212 insulator Substances 0.000 claims abstract description 27
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 21
- 229910052802 copper Inorganic materials 0.000 claims description 21
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- 239000010931 gold Substances 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
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- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 4
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- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a multi-gap self-swelling strong-air-current longitudinal blow-out arc anti-thunder protecting device which comprises a longitudinal blow-out arc device arranged at an insulator string earthing terminal through a grounding side connecting hardware fitting, a grounding side electrode arranged on the longitudinal blow-out arc device, and a guide line side electrode arranged on an off-contact guide line. A protecting gap formed by the grounding side electrode and the guide line side electrode is parallel to an insulator string. The longitudinal blow-out arc device comprises an arc extinguishing device body and arc extinguishing tubes. The arc extinguishing device body is provided with a plurality of through holes for placing the arc extinguishing tubes. An angle formed by two arc extinguishing tubes which are arranged in the arc extinguishing device body is 90 degrees, and end portions of the two arc extinguishing tubes are in contact with each other. Each arc extinguishing tube is in a spiral shape. The grounding side electrode is connected with a first arc extinguishing tube through a guide line, and the grounding side connecting hardware fitting is connected with a last arc extinguishing tube through a guide line. The device is simple in structure, low in manufacture cost, safe and reliable, effectively reduces the power system transmission line thunderstrike tripping rate and the accident rate, and improves the stability of a power system.
Description
Technical field
The present invention relates to transmission line protective gap device, be specifically related to a kind of can elongating arc path, weaken electric arc, adopt the vertical vertical arc lightning protection device of blowing out of many gap self-expansions air blast that blows arc quenching method of multiple spot.
Background technology
Transmission line lightning protection always is the important content of power department Thunder Protection, and lightning fault remains one of key factor affecting power grid security.Transmission line is struck by lightning, and causes line insulator flashover, and the power frequency continued flow thereupon rising damages insulator string and gold utensil, causes insulator string to burn and blows wire accident.Traditional " blocking type " lightning protection mode, transformation pole tower ground resistance, sets up coupling ground wire and lightning conducter, installation leakage conductor etc., due to its limitation, can only solve 50% lightning strike accident.In recent years, in order further to improve the reliability of transmission line power supply, power department employing is installed protection in parallel gap additional at transmission line and is prevented lightning strike accident.Yet in actual motion, it is as follows that protection in parallel gap has obvious defect:
First, protection in parallel gap is arranged on insulator string two ends, is the effect that preferential insulator string punctures when shortening the method for insulator string creepage distance and play thunderbolt.Insulator string creepage distance is by short circuit; not only causing the whole lightning withstand level of power system transmission line to decline increases tripping rate with lightning strike; power frequency insulation level while simultaneously causing electric power system normally to move declines, and has improved protection in parallel gap mistake breakdown probability under temporary overvoltage and switching overvoltage between invisible.
Secondly, when thunderbolt occurs transmission line, protection in parallel gap, preferentially because the overvoltage that thunderbolt causes punctures, leaks into the earth by lightning current, thereby plays the effect of protection transmission line and electric equipment.Yet because parallel connection protection gap does not have arc extinguishing ability; can not extinguish the power frequency continued flow causing after insulator string flashover; electric arc is long-time calcination between protection gap; to cause insulator string to damage; when serious; may cause transmission line broken string, electric arc can cause ablation and reduce its protective value electrode simultaneously.The final circuit breaker that relies on comes extinguish arcs to realize protection transmission line and equipment, is to sacrifice the way that " trip-out rate " and " power supply reliability " exchanges " low rate of failure " for.
The defect that does not possess arc extinguishing ability for common parallel connection gaps, inventor is in the patent of applying for before, China Patent No. is 2011201046273 to disclose a kind of 10～35kV overhead transmission line constraint space gas jet arc extinguishing lightning protection clearance apparatus that is applicable to 10～35kV overhead transmission line, this device is installed in parallel in line insulator string two ends, flashover voltage between protection gap is less than protected insulator string, thereby when transmission line is struck by lightning, having precedence over protected insulator string punctures, during disruptive discharge, the automatic induction lightening stream signal of signal pickup assembly also triggers high velocity jet gas generating unit, moment produces high velocity jet air-flow to the intense impact longitudinally of afterflow electric arc in constraint space, be cooled to and extinguish.And for example China Patent No. is 2011200053246 to disclose the constraint space jet-stream wind arc extinguishing lightning protection clearance apparatus for each electric pressure transmission line, this device is installed in parallel in line insulator string two ends, flashover voltage between protection gap is less than protected insulator string, thereby when transmission line is struck by lightning, having precedence over protected insulator string punctures, during disruptive discharge, when the gas exhausted material of constraint space inside is sharply heated generation gases at high pressure by high-temperature electric arc, the automatic collection signal of signal pickup assembly also starts gas jet generating means, moment produces high velocity air and longitudinally electric arc is impacted, be cooled to and extinguish.China Patent No. is 2010105694082 to disclose a kind of many interspace self-expanding strong-airflow arc extinguishing lightning protection devices for each electric pressure transmission line.This device is installed in parallel in line insulator string one side, and the dielectric strength of main discharge protection gap and auxiliary gap is less than protected insulator string, thus the preferential breakdown protection of the overvoltage gap producing when thunderbolt occurs circuit.During protection spark-over of gap, at the inner high-temperature electric arc that produces of auxiliary gap, air sharply adds thermal expansion in the semi-enclosed space of auxiliary gap, and elongating arc also sprays electric arc along gas port; The automatic collection signal of synchronous signal harvester also starts gas generating unit, and moment produces high velocity air extinguish arcs.The patent of application plays a good role for extinguishing power frequency arc before inventor, but still has that arc path is short, larger etc. some shortcomings of the probability of restriking.Therefore, above-mentioned device also needs to be further improved, thereby reaches better effect, improves the stability of electric power system.
Summary of the invention
The object of the present invention is to provide a kind of overhead transmission line that is applicable to various electric pressures, can successfully extinguish the vertical arc lightning protection device of blowing out of many gap self-expansions air blast that power frequency continued flow electric arc that lightning discharge causes does not reduce again electric power system power frequency insulation level.This device can elongating arc path, weaken electric arc, adopt the vertical arc quenching method that blows of multiple spot that electric arc breakpoint length is significantly improved fast, and arc reignition rate is significantly reduced.
To achieve these goals, the present invention has adopted following technical scheme:
The vertical arc lightning protection device of blowing out of air blast, comprises that by ground connection side, connecting gold utensil is fixedly mounted on vertical arc-control device, ground connection lateral electrode and the side of wire was electrode of blowing on insulator string earth terminal; Described ground connection lateral electrode is arranged on vertical blowing on arc-control device; One end of described side of wire was electrode is arranged on aerial condutor by fixture, and the other end points to ground connection lateral electrode; Described ground connection lateral electrode is mutually arranged side by side with protection gap and insulator string that side of wire was electrode forms; Wherein, the described vertical arc-control device that blows comprises arc-control device main body and arc-extinguishing tube; Described arc-control device main body is provided with several through holes; Described arc-extinguishing tube is placed in the through hole of arc-control device main body, and the angle that the arc-extinguishing tube that is in contact with one another of end forms is between any two 90 °; The placement of staggering mutually of the described arc-extinguishing tube in arc-control device main body upper and lower end parts, makes arc-extinguishing tube in arc-control device main body be the back-shaped shape of spiral and arranges; Described ground connection lateral electrode is connected with first arc-extinguishing tube by wire, and described ground connection side connects gold utensil and is connected with last arc-extinguishing tube by wire.
In the present invention, utilize the volume of arc-control device main body, the shape of putting of arc-extinguishing tube is set to the back-shaped shape of spiral, make arc path change screw stereo ring-type into by straight line, electric arc has been elongated to several times, and have sudden change to turn round, electric arc fragility is improved, be easy to be extinguished and be difficult for restriking.The multiple spot that adopts is vertical blows arc quenching method, utilize electric arc toast voluminous gas material production air blast in many places simultaneously at slit shearing electric arc.Vertical the blowing of multiple spot significantly improved electric arc breakpoint length fast, and arc reignition rate is significantly reduced; Than multiple spot is horizontal, blows effective arc extinction performance and increase substantially.
The present invention utilizes lightning current high frequency " collection skin " effective characteristic, lightning current is imported to the spiral arc-extinguishing tube in arc-control device body surfaces, N square electric arc section of interelectrode formation in electrode and adjacent tubes in N arc-extinguishing tube of series connection, produces strong longitudinal air flow by heating inner air tube and carries out arc extinguishing.Insulation shirt rim packing for spiral-distributed arc-extinguishing tube interval.
As of the present invention, further illustrate, above-described arc-extinguishing tube mainly forms by being arranged on the little copper pipe at two ends, the Metal Ball that is arranged on centre position and outer wall earthenware; Described ground connection lateral electrode is connected with the little copper pipe of first arc-extinguishing tube head end in arc-control device main body by wire, the little copper pipe of end is connected with the little copper pipe vertical dislocation of second arc-extinguishing tube head end, with this spiral, connect down, electric arc passes through each arc-extinguishing tube with this path, when electric arc passes through arc-extinguishing tube, puncture little copper pipe and Metal Ball, the air in heating tube, longitudinally blows out the fragile electric arc elongating to extinguish at a high speed from the little copper pipe hole at each arc-extinguishing tube two ends after air expands.Metal Ball is set in arc-extinguishing tube, can plays the effect of central electrode, better pilot arc passes from arc-extinguishing tube.
In the present invention, the structure setting of arc-extinguishing tube meets lightning current high frequency collection skin feature, and lightning current very easily pierces in arc-extinguishing tube.Utilize electric arc fine rule effect to suppress arc stiffness, electric arc is easily extinguished; Utilize constraint space to force electric arc graph thinning, make the sectional area minimization of electric arc, reduce thus electric arc conveying capacity ability and the energy that electric arc consumes by radiation, conduction, convection current at open space can not equivalent be supplemented, electric arc is in very easily extinguishing state; Simultaneously confined channel is narrow and small, and during little electric arc, thermal expansion had both produced hyperbar and makes arc extinction in transient state electric arc and early stage, and arc extinguishing threshold value is significantly reduced.
As of the present invention, further illustrate, being shaped as of above-described arc-control device main body is cylindric, or L-shaped.
As a further improvement on the present invention, above-describedly vertical blow arc-control device and also comprise striking dish, described ground connection lateral electrode is arranged on vertical blowing in the arc-control device main body of arc-control device through striking dish.Striking dish adopts electric conducting material to make or at its surface coverage electric conducting material, as copper, aluminium etc.
As of the present invention, further illustrate, above-described ground connection lateral electrode and/or side of wire was electrode adopt cold cathode type electrode, the electrode of making as materials such as graphite electrode or copper, aluminium.Utilize cold cathode effect arc extinguishing: electrode is cryotron, electric arc is high-temperature body; Between the two, in the certain limit of contact, arc temperature is affected by cold cathode to be also low temperature electric arc, with a plurality of electrode handle electric arc, to be divided into cold plasma, makes the thermal ionization degree reduction of electric arc be easy to extinguish.
Advantage of the present invention:
1. by the structural design of arc-control device, realized that multiple spot is vertical blows arc quenching method, than traditional horizontal arc quenching method that blows, there is better arc quenching effect:
(1) utilize the volume of arc-control device main body, electric arc is changed into screw stereo ring-type by straight line, electric arc elongates 10 times, and electric arc has sudden change to turn round, and electric arc fragility is improved, and is easy to be extinguished; Horizontal blowing utilized arc-control device length elongating arc, needs thus the arc-control device grown very much, and electric arc elongates continuously, do not have electric arc sudden change to turn round, and electric arc is low by degree of reduction.Vertical blowing by earthenware internal diameter and length controlled arc extinguishing response time, horizontal blowing the uncontrollable response time.Vertical blowing can adopt the earthenware that being fixed on arc extinguishing rod surface to realize to control arc shape, and arc resistance can be excellent, can repeat by arc erosion several thousand times.
(2) the horizontal arc-control device that blows, owing to will being fixed on insulator string edge, can only be used silica gel, tolerance arc erosion poor performance.Generally only can ablation 5 times.
(3) the large and fracture of vertical electric arc fracture length of blowing, in the catastrophe point of electric arc, is difficult for restriking.Meanwhile, electric arc elongation efficiency is high elongates electric arc a lot at shorter arc-control device (arc extinguishing rod).Horizontally blow under condition that electric arc elongates path and length must be leaned on the guiding of arc extinguishing rod, so arc extinguishing rod is very long, otherwise easily restrikes.Infeasible in engineering.
(4) vertical to blow unit interval long, and a little less than cold cathode effect, when small electric flows, arc temperature is high, and gas output is large, and arc extinguishing threshold electric current is little, and arc extinguishing is highly sensitive.Can be arc extinction in very little value.The horizontal little cold cathode effect of unit interval of blowing is strong, and electric arc will just produce arc extinguishing air-flow when large value very, and arc extinguishing threshold electric current is large, and arc extinguishing difficulty is large.The vertical interval of blowing is large, arc extinguishing rate high (arc temperature is high, and arc extinguishing air-flow the is strong) rate of restriking extremely low (the two sections in electric arc sudden change corner are arc extinguishing simultaneously).Vertical blow due to arc extinguishing interval, unit little for avoid restriking must be very long geometrical length.Ceramic material intensity and resistance to arc temperature are higher than silica gel, and the vertical arc threshold value of blowing out is blown much larger than horizontal.
(5) horizontal blowing-out arc apparatus cost is high, and arc extinguishing rate is low, and the vertical arc-control device that blows is produced, installs easier, cheap.
Arc-extinguishing tube narrow and small under minimum electric current (milliampere level) can produce strong arc extinguishing air-flow, arc extinguishing action threshold is extremely low, the degree of depth that is beneficial to transient state electric arc suppresses.
3. adopt cold cathode as electrode, can reduce arc temperature, favourable to extinguishing stable state electric arc.
4. of the present invention simple in structure, production cost is low, and working stability is safe and reliable, and arc quenching effect is good, effectively reduces power system transmission line tripping rate with lightning strike and rate of failure, raising stability of power system.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the vertical structural representation that blows arc-control device in the present invention.
Fig. 3 is the structural representation of arc-extinguishing tube in the present invention.
Fig. 4 is the structural representation of another embodiment of the present invention.
Reference numeral:
1-insulator string, 2-ground connection side connects gold utensil, 3-arc-control device main body, 4-striking dish, 5-ground connection lateral electrode, 6-side of wire was electrode, 7-through hole, 8-arc-extinguishing tube, the little copper pipe of 9-, 10-Metal Ball, 11-outer wall earthenware.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Embodiment 1:
As shown in Figure 1, Figure 2 and Figure 3, the vertical arc lightning protection device of blowing out of a kind of many gap self-expansions air blast, comprises that by ground connection side, connecting gold utensil 2 is fixedly mounted on vertical arc-control device, ground connection lateral electrode 5 and the side of wire was electrode 6 of blowing on insulator string 1 earth terminal; Described ground connection lateral electrode 5 is arranged on vertical blowing on arc-control device; One end of described side of wire was electrode 6 is arranged on aerial condutor by fixture, and the other end points to ground connection lateral electrode 5; Described ground connection lateral electrode 5 is mutually arranged side by side with protection gap and insulator string 1 that side of wire was electrode 6 forms; Wherein, the described vertical arc-control device that blows comprises arc-control device main body 3 and arc-extinguishing tube 8; Described arc-control device main body 3 is provided with several through holes 7; Described arc-extinguishing tube 8 is placed in the through hole 7 of arc-control device main body 3, and the angle that the arc-extinguishing tube 8 that is in contact with one another of end forms is between any two 90 °; The placement of staggering mutually of the described arc-extinguishing tube 8 in arc-control device main body 3 upper and lower end parts, makes arc-extinguishing tube 8 in arc-control device main body 3 be the back-shaped shape of spiral and arranges; Described ground connection lateral electrode 5 is connected with first arc-extinguishing tube by wire, and described ground connection side connects gold utensil 2 and is connected with last arc-extinguishing tube by wire.
Described arc-extinguishing tube 8 mainly forms by being arranged on the little copper pipe 9 at two ends, the Metal Ball 10 that is arranged on centre position and outer wall earthenware 11; Described ground connection lateral electrode 5 is connected with the little copper pipe of first arc-extinguishing tube head end in arc-control device main body by wire, the little copper pipe of end is connected with the little copper pipe vertical dislocation of second arc-extinguishing tube head end, with this spiral, connect down, electric arc passes through each arc-extinguishing tube with this path, when electric arc passes through arc-extinguishing tube, puncture little copper pipe and Metal Ball, the air in heating tube, longitudinally blows out the fragile electric arc elongating to extinguish at a high speed from the little copper pipe hole at each arc-extinguishing tube two ends after air expands.
The described vertical arc-control device that blows also comprises striking dish 4, and described ground connection lateral electrode 5 is arranged on vertical blowing in the arc-control device main body 3 of arc-control device through striking dish 4.
Being shaped as of described arc-control device main body 3 is cylindric, is cylinder cylinder.
Embodiment 2:
As shown in Figure 4, the difference of the present embodiment and embodiment 1 is: the shape of described arc-control device main body 3 is L-shaped, is L shaped cylinder.
Above-described embodiment 1 and 2, simple in structure, working stability, safe and reliable; Utilize the volume of arc-control device main body, the shape of putting of arc-extinguishing tube is set to the back-shaped shape of spiral, makes arc path change screw stereo ring-type into by straight line, electric arc has been elongated to several times, and have sudden change to turn round, and electric arc fragility is improved, be easy to be extinguished and be difficult for restriking.The multiple spot that adopts is vertical blows arc quenching method, utilize electric arc toast voluminous gas material production air blast in many places simultaneously at slit shearing electric arc.Vertical the blowing of multiple spot significantly improved electric arc breakpoint length fast, and arc reignition rate is significantly reduced; Than multiple spot is horizontal, blows effective arc extinction performance and increase substantially.
Claims (4)
1. the vertical arc lightning protection device of blowing out of the air blast of gap self-expansion more than, comprises that by ground connection side, connecting gold utensil (2) is fixedly mounted on vertical arc-control device, ground connection lateral electrode (5) and the side of wire was electrode (6) of blowing on insulator string (1) earth terminal; Described ground connection lateral electrode (5) is arranged on vertical blowing on arc-control device; One end of described side of wire was electrode (6) is arranged on aerial condutor by fixture, and the other end points to ground connection lateral electrode (5); Described ground connection lateral electrode (5) is mutually arranged side by side with protection gap and insulator string (1) that side of wire was electrode (6) forms; It is characterized in that: the described vertical arc-control device that blows comprises arc-control device main body (3) and arc-extinguishing tube (8); Described arc-control device main body (3) is provided with several through holes (7); Described arc-extinguishing tube (8) is placed in the through hole (7) of arc-control device main body (3), and the angle that the arc-extinguishing tube (8) that is in contact with one another of end forms is between any two 90 °; The placement of staggering mutually of the described arc-extinguishing tube (8) in arc-control device main body (3) upper and lower end parts, makes arc-extinguishing tube (8) in arc-control device main body (3) be the back-shaped shape of spiral and arranges; Described ground connection lateral electrode (5) is connected with first arc-extinguishing tube by wire, and described ground connection side connects gold utensil (2) and is connected with last arc-extinguishing tube by wire.
2. the vertical arc lightning protection device of blowing out of many gap self-expansions air blast according to claim 1, is characterized in that: described arc-extinguishing tube (8) mainly forms by being arranged on the little copper pipe (9) at two ends, the Metal Ball (10) that is arranged on centre position and outer wall earthenware (11); Described ground connection lateral electrode (5) is connected with the little copper pipe of first arc-extinguishing tube head end in arc-control device main body by wire, the little copper pipe of end is connected with the little copper pipe vertical dislocation of second arc-extinguishing tube head end, with this spiral, connect down, electric arc passes through each arc-extinguishing tube with this path, when electric arc passes through arc-extinguishing tube, puncture little copper pipe and Metal Ball, the air in heating tube, longitudinally blows out the fragile electric arc elongating to extinguish at a high speed from the little copper pipe hole at each arc-extinguishing tube two ends after air expands.
3. the vertical arc lightning protection device of blowing out of many gap self-expansions air blast according to claim 1 and 2, is characterized in that: being shaped as of described arc-control device main body (3) is cylindric, or L-shaped.
4. the vertical arc lightning protection device of blowing out of many gap self-expansions air blast according to claim 1 and 2; it is characterized in that: the described vertical arc-control device that blows also comprises striking dish (4), described ground connection lateral electrode (5) is arranged on vertical blowing in the arc-control device main body (3) of arc-control device through striking dish (4).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310562627.1A CN103594210B (en) | 2013-11-13 | 2013-11-13 | Multiple level self-expanding air blast is vertical blows out arc lightning protection device |
| PCT/CN2014/000955 WO2015070517A1 (en) | 2013-11-13 | 2014-10-30 | Multi-gap self-inflating strong-airflow protective device for lightning protection by longitudinal-blast arc extinguishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310562627.1A CN103594210B (en) | 2013-11-13 | 2013-11-13 | Multiple level self-expanding air blast is vertical blows out arc lightning protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103594210A true CN103594210A (en) | 2014-02-19 |
| CN103594210B CN103594210B (en) | 2015-10-28 |
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|---|---|---|---|
| CN201310562627.1A Active CN103594210B (en) | 2013-11-13 | 2013-11-13 | Multiple level self-expanding air blast is vertical blows out arc lightning protection device |
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| Country | Link |
|---|---|
| CN (1) | CN103594210B (en) |
| WO (1) | WO2015070517A1 (en) |
Cited By (23)
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| CN103871696A (en) * | 2014-03-26 | 2014-06-18 | 王嬿蕾 | Self-arc-extinguishing anti-contamination anti-icing-flashover insulator |
| CN104361960A (en) * | 2014-12-02 | 2015-02-18 | 国家电网公司 | Parallel gap lightning protector with oscillating arm electrode |
| WO2015070517A1 (en) * | 2013-11-13 | 2015-05-21 | 王巨丰 | Multi-gap self-inflating strong-airflow protective device for lightning protection by longitudinal-blast arc extinguishing |
| CN104701743A (en) * | 2015-02-10 | 2015-06-10 | 王巨丰 | Countable cut arc lightning arrester |
| CN104701735A (en) * | 2015-02-10 | 2015-06-10 | 王巨丰 | Repeated thunder arc cutting type arrester |
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| CN104715868A (en) * | 2015-02-10 | 2015-06-17 | 王巨丰 | Insulator chain capable of being prevented from being damaged by graphite bomb |
| CN106208026A (en) * | 2016-08-29 | 2016-12-07 | 国网山西省电力公司大同供电公司 | A kind of high-tension electricity power transmission line arc protection device |
| CN107680756A (en) * | 2017-09-28 | 2018-02-09 | 上海兆邦电力器材有限公司 | Laddering electric discharge device step by step |
| CN107705941A (en) * | 2017-09-28 | 2018-02-16 | 上海兆邦电力器材有限公司 | For the arc-blowing device on electric power circuit insulator class electrical equipment |
| CN107732661A (en) * | 2017-08-24 | 2018-02-23 | 王巨丰 | A kind of tortuous synchronous compression arc extinguishing lightning protection device for being provided with protection side |
| CN107732663A (en) * | 2017-09-14 | 2018-02-23 | 王巨丰 | The ball-type compression injection air-flow arc-control device and ball arcing horn of Coulomb force traction |
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| CN108212024A (en) * | 2017-12-25 | 2018-06-29 | 海南汉地阳光石油化工有限公司 | It is a kind of that there is the finishing reactor of lightning strike protection |
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| CN111446032A (en) * | 2020-05-14 | 2020-07-24 | 国网湖北省电力有限公司十堰供电公司 | Overhead insulated conductor capable of preventing 10kV power line from being broken by lightning strike and manufacturing method thereof |
| CN112117648A (en) * | 2019-06-20 | 2020-12-22 | 南宁超伏电气科技有限公司 | Method and system for extinguishing arc plasma through multi-tube recoil |
| US10894610B2 (en) | 2017-06-05 | 2021-01-19 | The Boeing Company | Jet stream lightning protection apparatus, system, and method the same |
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| CN107742559B (en) * | 2017-08-24 | 2024-01-30 | 王巨丰 | Zigzag synchronous compression arc extinguishing lightning protection device with parallel arrangement of arc extinguishing channels |
| CN107481823B (en) * | 2017-09-20 | 2023-08-01 | 广东电网有限责任公司湛江供电局 | Lightning-proof tripping self-arc-extinguishing parallel gap system for power distribution network |
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| WO2015070517A1 (en) | 2015-05-21 |
| CN103594210B (en) | 2015-10-28 |
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