CN106848843A - A kind of high ferro drive thunder device - Google Patents
A kind of high ferro drive thunder device Download PDFInfo
- Publication number
- CN106848843A CN106848843A CN201710171417.8A CN201710171417A CN106848843A CN 106848843 A CN106848843 A CN 106848843A CN 201710171417 A CN201710171417 A CN 201710171417A CN 106848843 A CN106848843 A CN 106848843A
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- electrode
- high ferro
- thunder device
- metal housing
- passive drive
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01W—METEOROLOGY
- G01W1/00—Meteorology
- G01W1/10—Devices for predicting weather conditions
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Plasma & Fusion (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Plasma Technology (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
A kind of high ferro drive thunder device, including along the spaced some passive drive thunder devices of high-speed railway rail, some high ferro transformer stations are interval with high-speed railway rail, high ferro transformer station is provided with active and passive drive thunder device, and active and passive drive thunder device is connected with Lightning Warning system.Some passive drive thunder devices are interval with by high-speed railway rail side, effectively thundercloud neighbouring on high-speed railway rail is eliminated, it is ensured that high ferro operation safety；By installing active and passive drive thunder device, the effectively normal work of protection high ferro transformer station in high ferro transformer station, it is ensured that for high ferro is powered.
Description
Technical field：
Thunder equipment technical field is driven the present invention relates to high ferro, and in particular to a kind of high ferro drive thunder device.
Background technology：
High ferro has become the modern main vehicles, the life security of the safe direct relation people of operation of high ferro, mesh
The principal element of preceding influence high ferro operation safety has human factor and uncontrollable factor, and wherein uncontrollable factor is primarily referred to as thunder and lightning
Weather, thunder and lightning weather easily causes high ferro thunderbolt, has a strong impact on the normal operation of electrified equipment in high ferro, can be produced when serious
Failure, in order to reduce influence of the thunder and lightning weather to high ferro, lightning rod is installed generally in high ferro or is installed on high-speed railway rail
Lightning conducter, installs lightning rod in high ferro transformer station, and lightning rod is Franklin's invention, and its cardinal principle is to attract thundercloud
Electric field concentrates on its metal needle and increases pin end electric-field intensity, makes thundercloud electric field breakdown metal needle and powerful thunder and lightning is flowed through into it
Grounding body is released into ground, but lightning rod lightning protection usually comes at counterattack, step voltage, contact voltage and the electromagnetism to strong and weak electric system
The negative harm such as pulse induction overvoltage damage, lightning rod lightning protection effect is not good, it is difficult to ensures that transformer station exempts from thunderbolt, and takes shelter from the thunder
Line is installed wastes time and energy, and cost is high, and has larger current on lightning conducter in thunderbolt, forms magnetic field to high in operation
The electrical equipment of iron produces influence, it is difficult to which effectively disappear thunder.
The content of the invention：
The purpose of the present invention is exactly to make up the deficiencies in the prior art, there is provided with thunder device is driven, it has a kind of high ferro
Have the advantages that simple installation, low cost, drive thunder are reliable and stable, solve problems of the prior art.
The present invention is for the solution technical scheme that is used of above-mentioned technical problem：
A kind of high ferro drive thunder device, including along the spaced some passive drive thunder devices of high-speed railway rail, on high-speed railway rail
Some high ferro transformer stations are interval with, high ferro transformer station is provided with active and passive drive thunder device, active and passive drive thunder device connection
There is Lightning Warning system.
The high-speed railway rail side is provided with mounting bracket, and mounting bracket is provided with passive drive thunder device.
Spacing is 1-2km between the adjacent two passive drive thunder device.
Described active and passive drive thunder device includes frame, and frame upper end is provided with the first metal housing, on the first metal housing
Some electric discharge through holes are provided with, the position of correspondence electric discharge through hole is provided with hollow spray point, hollow electric discharge on the first metal housing outer wall
Pin side wall is provided with some openings, and frame upper end middle part is provided with mounting hole, nano ceramics insulator, nanometer are provided with mounting hole
Ceramic insulator bottom is provided with first electrode, and gap is provided between first electrode and frame inner wall, and first electrode passes through ground wire
It is connected with the earth, the frame below first electrode is provided with blower fan, and power supply, inverter and transformer, power supply are additionally provided with frame
It is connected with inverter and transformer successively by wire, transformer is connected by wire with nano ceramics insulator, and power supply passes through
Wire is connected with blower fan and Lightning Warning system respectively.
The hollow spray point end is provided with some one-level spray points.
The Shelf External is provided with spherical housing.
First metal housing is aluminum metal outer cover, and the first electrode is aluminium electrode.
The nano ceramics insulator is designed as length full skirt interval shape.
The spherical housing is using light materials such as titanium alloy or carbon fibers.
The Lightning Warning system includes Lightning Warning device, thundercloud electric field intensity measuremenrt instrument, nutritious obesity radar, counting control
Device processed and controller, Lightning Warning device, thundercloud electric field intensity measuremenrt instrument and counter controller are connected by wire and controller respectively
Connect.
Controlling switch is connected between the power supply and inverter, controlling switch is connected with Lightning Warning system.
The passive drive thunder device includes the second metal housing, and some spray points are uniformly provided with the second metal housing outer wall,
Second metal housing openend inwall is provided with insulator, and insulator bottom is provided with second electrode, second electrode and the second metal
Interval setting between outer cover inwall, second electrode is connected by ground wire with the earth.
Second metal housing is aluminum metal outer cover, and the second electrode is led or superconducting metal electrode for height.
The spray point end is provided with some one-level spray points.
Single or multiple plasmas are provided with inside second metal housing storehouse occurs.
The plasma occurs storehouse includes interior metal cap, and interior metal cap openend inwall is provided with inner insulator, interior insulation
Sub- bottom is provided with interior electrode, and interval setting between interior electrode and interior metal cap inwall, interior electrode is connected by ground wire with the earth.
The present invention uses such scheme, for the technical problem that existing high ferro lightning protection is present, devises a kind of high ferro and drives
Thunder device, some passive drive thunder devices are interval with by high-speed railway rail side, and effectively thundercloud neighbouring on high-speed railway rail is carried out
Eliminate, it is ensured that high ferro operation safety；By installing active and passive drive thunder device, effectively protection high ferro power transformation in high ferro transformer station
The normal work stood, it is ensured that for high ferro is powered.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the active and passive drive thunder device structural representation of the present invention；
Fig. 3 is the passive drive thunder device structural representation of the present invention；
Fig. 4 is that plasma of the present invention occurs chamber structure schematic diagram；
Wherein, 1, high-speed railway rail, 2, passive drive thunder device, the 201, second metal housing, 202, spray point, 203, insulator,
204th, second electrode, 205, plasma there is storehouse, 206, interior metal cap, 207, inner insulator, 208, interior electrode, 3, high ferro power transformation
Stand, 4, active and passive drive thunder device, 401, frame, the 402, first metal housing, 403, electric discharge through hole, 404, hollow spray point,
405th, it is open, 406, mounting hole, 407, nano ceramics insulator, 408, first electrode, 409, blower fan, 410, power supply, 411, inverse
Become device, 412, transformer, 413, one-level spray point, 414, spherical shell, 415, controlling switch, 5, Lightning Warning system, 6, peace
Shelve, 7, ground wire, 8, high ferro.
Specific embodiment：
The present invention will be further described with embodiment below in conjunction with the accompanying drawings：
As Figure 1-4, a kind of high ferro drive thunder device, including along the spaced some passive drive thunders of high-speed railway rail 1
Device 2, is interval with some high ferro transformer stations 3 on high-speed railway rail 1, high ferro transformer station 3 is provided with active and passive drive thunder device 4, has
Source and passive drive thunder device 4 are connected with Lightning Warning system 5, make full use of high ferro transformer station 3 can supplied character realize active and nothing
Thunder is driven in source jointly, interval setting some passive drives on high-speed railway rail 1 the characteristics of grown for high-speed railway rail 1 and cannot provide power supply
Thunder device 2, realization targetedly carries out drive thunder to high ferro transformer station 3 and high-speed railway rail 1, effectively high ferro on protection high-speed railway rail 1
Operation safety and the safety of high ferro transformer station 3.
The side of high-speed railway rail 1 is provided with mounting bracket 6, and mounting bracket 6 is provided with passive drive thunder device 2.
Spacing is 1-2km between adjacent two passive drive thunder device 2.
Active and passive drive thunder device 4 includes frame 401, and the upper end of frame 401 is provided with the first metal housing 402, the first metal
Outer cover 402 is provided with some electric discharge through holes 403, during the position of correspondence electric discharge through hole 403 is provided with the outer wall of the first metal housing 402
Empty spray point 404, the side wall of hollow spray point 404 is provided with some openings 405, and the upper center of frame 401 is provided with mounting hole 406,
Nano ceramics insulator 407 is installed in mounting hole 406, the bottom of nano ceramics insulator 407 is provided with first electrode 408, first
Gap is provided between electrode 408 and the inwall of frame 401, first electrode 408 is connected by ground wire 7 with the earth, first electrode 408
The frame 401 of lower section is provided with blower fan 409, and power supply 410, inverter 411 and transformer 412, power supply are additionally provided with frame 401
410 are connected with inverter 411 and transformer 412 successively by wire, and transformer 412 is by wire and nano ceramics insulator
407 connections, power supply 410 is connected with blower fan 409 and Lightning Warning system 5 respectively by wire, is realized active and passive is entered jointly
Row drives thunder, the effectively safety of protection high ferro transformer station
The end of hollow spray point 404 is provided with some one-level spray points 413, realizes that microampere order discharges.
Spherical housing 414 is provided with outside frame 401, effectively the equipment in protection frame 401.
First metal housing 402 is aluminum metal outer cover, and first electrode 408 is aluminium electrode, and cost performance is high.
Nano ceramics insulator 407 is designed as length full skirt interval shape.
Spherical housing 414 is using light materials such as titanium alloy or carbon fibers.
Lightning Warning system 5 includes Lightning Warning device, thundercloud electric field intensity measuremenrt instrument, nutritious obesity radar, tally control
Device and controller, Lightning Warning device, thundercloud electric field intensity measuremenrt instrument and counter controller are connected by wire with controller respectively,
Realize intellectual monitoring thundercloud and drive thunder.
Controlling switch 415 is connected between power supply 410 and inverter 411, controlling switch 415 connects with Lightning Warning system 5
Connect.
Passive drive thunder device 2 includes the second metal housing 201, and some electric discharges are uniformly provided with the outer wall of the second metal housing 201
Pin 202, the openend inwall of the second metal housing 201 is provided with insulator 203, and the bottom of insulator 203 is provided with second electrode 204,
Interval setting between the inwall of 204 and second metal housing of second electrode 201, second electrode 204 is connected by ground wire 7 with the earth
Connect, realization carries out drive thunder without power supply, the operation safety of high ferro 8 effectively on protection high-speed railway rail 1.
Second metal housing 201 is aluminum metal outer cover, and second electrode 204 is led or superconducting metal electrode for height.
The end of spray point 202 is provided with some one-level spray points 413.
Single or multiple plasmas are provided with inside second metal housing 201 storehouse 205 occur, improved plasma and produce quantity,
Ensure to drive thunder effect.
Plasma occurs storehouse 205 includes interior metal cap 206, and the openend inwall of interior metal cap 206 is provided with inner insulator
207, the bottom of inner insulator 207 is provided with interior electrode 208, interval setting between interior electrode 208 and the inwall of interior metal cap 206, interior electricity
Pole 208 is connected by ground wire 7 with the earth.
The course of work of the invention：
When having thundercloud near high ferro transformer station, the electric charge in thundercloud is constantly assembled, and active and passive dissipation array 4 starts work
Make, usual thundercloud is negatively charged, and the negative electrical charge in thundercloud is constantly assembled, it can be seen from Coulomb's law, while big assemble big on the ground
Amount positive charge, in the presence of the charges of different polarity are attracting, the negative electrical charge in thundercloud constantly declines in funnel-form, when negative electrical charge is gathered
Microampere order is formed after certain amount, between the one-level spray point 413 on negative electrical charge and the first metal housing 402 in thundercloud to put
Electricity, that is, produce one-level electric discharge, and thundercloud charge punctures after outside air connects with one-level spray point 413, and a large amount of negative electrical charges are gathered in
On first metal housing 402, now the positive charge of big ground aggregation is gathered in first electrode 408 by ground wire 10, and first
A large amount of positive charges on electrode 408 are constantly assembled with a large amount of negative electrical charges on the outer cover of the first metal 402, produce voltage difference, work as electricity
Pressure difference increases the air that will puncture when to a certain extent between the first metal housing 402 and first electrode 408, produces milliampere level
Electric discharge, i.e. two-stage discharge, so as to ionize out substantial amounts of plasma, can produce under thundercloud electric field excitation and be dissipated more than 30mC/s
Electric charge (i.e. more than 30mA dissipations electric current), the cation in plasma is constantly diffused up, and ion diffusion height is generally up to
Negative electrical charge in more than 800m, with thundercloud is neutralized, and weakens thundercloud, during the grounded line of anion of generation is flowed into greatly, so that real
Existing passive drive thunder, while passive drive thunder works, connects 220V power supplys 12, then through the effect of inverter 13 and transformer 14
By 220V voltage transformations into 30,000 volts of voltages, and 30,000 volts of voltages are transferred on the coil of nano ceramics insulator 407, nanometer pottery
Porcelain insulator 407 punctures the air between the metal housing 402 of nano ceramics insulator 407 and first in the presence of high voltage,
Realize that dielectric barrier discharge mode dense ionization air produces the non-equilibrium low temperature plasma of high concentration, according to China's gas electronic
The test such as and electrostatics famous expert Qiu Junlin, Bai Xiyao, it is 1014/ to use above-mentioned dense ionization air manner to produce concentration
The plasma of m3-1016/m3, while starting blower fan 409, in the presence of blower fan 409, high concentration plasma is sequentially passed through
Electric discharge through hole 403 and hollow spray point 404, and flowed out at opening 405 from hollow spray point 404 and be discharged into air, root
It is to carry out rocket launcher in Florida space flight base to draw thunder mode lightning protection according to NASA (NASA), it is naturally sharp to ground
The ion that end thing (vegetation tip) is produced under thundercloud electric field action is distributed made sounding test and shows along spatial altitude, ion
The drift high-altitude to more than 800m, therefore cation can be floated in thundercloud, neutralized with the negative electrical charge in thundercloud, weaken thunder
Cloud, realizes active drive thunder, while the drive thunder device of the application can also be with Lightning Warning device, thundercloud electric field intensity measuremenrt instrument, cloud
Layer detection radar, counter controller and controller auxiliary electronic equipment are used cooperatively, and realize that intellectualized detection thundercloud and control are driven
Thunder, by by active drive thunder and effective combination of passive drive thunder device, making overall structure compacter, while realizing multistage electric discharge
Drive thunder and drive thunder is more safe and reliable.
When high-speed railway rail 1 nearby thundercloud occurs, passive drive thunder device is started working, and usual thundercloud is negatively charged, according to storehouse
Human relations law, assembles greatly substantial amounts of positive charge on the ground, and positive charge is gathered in second electrode 204 by ground wire, with thundercloud
Negative electrical charge constantly assemble, in the presence of the positive charge in second electrode 204 and thundercloud negative electrical charge are attracting, the negative electricity in thundercloud
Lotus funnel is moved down, when spacing and voltage difference between negative electrical charge and one-level spray point 413 reach certain numerical value just
Outside air can be punctured, so as to form one-level electric discharge, ionized air produces plasma, in one-level spray point 413 and thundercloud
After electric charge conducting, substantial amounts of negative electrical charge is gathered on the second metal housing 201, negative electrical charge on the second metal housing 201 and the
Positive charge on two electrodes 204 forms voltage difference again, and with the continuous aggregation of negative electrical charge and positive charge, voltage difference constantly increases
Greatly, after voltage difference reaches certain numerical value, the air between the metal housing 201 of second electrode 204 and second is punctured, ionization is produced
Highdensity plasma, i.e., generally produce more than 30mC/s dissipation plasmas (i.e. more than 30mA under thundercloud electric field excitation
Dissipation electric current), effectively neutralize and draw poly- positive and negative charge, the electric charge between the thundercloud of more than 10C and the earth can be neutralized in 5 minutes,
Cation is neutralized to diffusion in air with the negative electrical charge in thundercloud, and ion generally floats distance in more than 800m, weakens thundercloud, bears
The grounded line 7 of electric charge imports the earth, so as to reach the purpose that stabilization drives thunder, the high ferro 8 effectively run on protection high-speed railway rail 1.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or conversion made to embodiment of the present invention are all fallen within protection scope of the present invention.
The present invention does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (10)
1. a kind of high ferro is used and drives thunder device, it is characterised in that：It is high including along the spaced some passive drive thunder devices of high-speed railway rail
Some high ferro transformer stations are interval with rail road, high ferro transformer station is provided with active and passive drive thunder device, active and passive drive
Thunder device is connected with Lightning Warning system.
2. a kind of high ferro according to claim 1 is used and drives thunder device, it is characterised in that：The high-speed railway rail side is provided with peace
Shelve, mounting bracket is provided with passive drive thunder device.
3. a kind of high ferro according to claim 1 is used and drives thunder device, it is characterised in that：Described adjacent two it is passive drive thunder device it
Between spacing be 1-2km.
4. a kind of high ferro according to claim 1 is used and drives thunder device, it is characterised in that：Described active and passive drive thunder device bag
Including rack, frame upper end is provided with the first metal housing, and the first metal housing is provided with some electric discharge through holes, outside the first metal housing
The position of correspondence electric discharge through hole is provided with hollow spray point on wall, and hollow spray point side wall is provided with some openings, in frame upper end
Portion is provided with mounting hole, and nano ceramics insulator is provided with mounting hole, and nano ceramics insulator bottom is provided with first electrode, first
Gap is provided between electrode and frame inner wall, first electrode is connected by ground wire with the earth, in the frame below first electrode
Blower fan is provided with, power supply, inverter and transformer are additionally provided with frame, power supply is connected with inverter and transformer successively by wire
Connect, transformer is connected by wire with nano ceramics insulator, power supply is connected with blower fan and Lightning Warning system respectively by wire
Connect.
5. a kind of high ferro according to claim 4 is used and drives thunder device, it is characterised in that：The hollow spray point end is provided with
Some one-level spray points, the Shelf External is provided with spherical housing, and first metal housing is aluminum metal outer cover, described first
Electrode is aluminium electrode.
6. a kind of high ferro according to claim 1 is used and drives thunder device, it is characterised in that：The nano ceramics insulator design
For length full skirt is spaced shape, the spherical housing is using light materials such as titanium alloy or carbon fibers.
7. a kind of high ferro according to claim 4 is used and drives thunder device, it is characterised in that：The Lightning Warning system includes thunder
Electric precaution device, thundercloud electric field intensity measuremenrt instrument, nutritious obesity radar, counter controller and controller, Lightning Warning device, thundercloud electricity
Field intensity measuring instrument and counter controller are connected by wire with controller respectively, and control is connected between the power supply and inverter
System switch, controlling switch is connected with Lightning Warning system.
8. a kind of high ferro according to claim 1 is used and drives thunder device, it is characterised in that：The passive drive thunder device includes second
Metal housing, is uniformly provided with some spray points on the second metal housing outer wall, the second metal housing openend inwall is provided with absolutely
Edge, insulator bottom is provided with second electrode, and interval setting between second electrode and the second metal housing inwall, second electrode is led to
Ground wire is crossed to be connected with the earth.
9. a kind of high ferro according to claim 8 is used and drives thunder device, it is characterised in that：Second metal housing is aluminium gold
Category outer cover, the second electrode is led or superconducting metal electrode for height, is provided with single or multiple etc. inside second metal housing
There is storehouse in ion.
10. a kind of high ferro according to claim 9 is used and drives thunder device, it is characterised in that：The plasma occurs storehouse to be included
Interior metal cap, interior metal cap openend inwall is provided with inner insulator, and inner insulator bottom is provided with interior electrode, interior electrode and interior gold
Interval setting between category cover inwall, interior electrode is connected by ground wire with the earth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171417.8A CN106848843A (en) | 2017-03-22 | 2017-03-22 | A kind of high ferro drive thunder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171417.8A CN106848843A (en) | 2017-03-22 | 2017-03-22 | A kind of high ferro drive thunder device |
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| Publication Number | Publication Date |
|---|---|
| CN106848843A true CN106848843A (en) | 2017-06-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710171417.8A Pending CN106848843A (en) | 2017-03-22 | 2017-03-22 | A kind of high ferro drive thunder device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766681A (en) * | 2018-06-29 | 2018-11-06 | 国网湖南省电力有限公司 | Spherical composite insulator |
| CN109742717A (en) * | 2019-01-16 | 2019-05-10 | 成都中轨轨道设备有限公司 | A kind of novel high-speed rail being easily installed drive thunder device |
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| CN1564409A (en) * | 2004-03-29 | 2005-01-12 | 王昆生 | Integrated active and passive plasma lightning method and lightning arrester |
| CN101976829A (en) * | 2010-10-29 | 2011-02-16 | 云南大红山管道有限公司 | Long-distance pulp transporting pipeline lightning refusing system and control method thereof |
| CN104808198A (en) * | 2015-05-25 | 2015-07-29 | 扬州宇安电子科技有限公司 | Active and passive integration system of radar |
| CN106329317A (en) * | 2015-06-18 | 2017-01-11 | 王昆生 | Passive compound strong ionization discharge plasma lightning rejection device |
| CN205945047U (en) * | 2016-08-24 | 2017-02-08 | 扬州华峰防雷新科技有限公司 | Thunder system device can be changed in change |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564409A (en) * | 2004-03-29 | 2005-01-12 | 王昆生 | Integrated active and passive plasma lightning method and lightning arrester |
| CN101976829A (en) * | 2010-10-29 | 2011-02-16 | 云南大红山管道有限公司 | Long-distance pulp transporting pipeline lightning refusing system and control method thereof |
| CN104808198A (en) * | 2015-05-25 | 2015-07-29 | 扬州宇安电子科技有限公司 | Active and passive integration system of radar |
| CN106329317A (en) * | 2015-06-18 | 2017-01-11 | 王昆生 | Passive compound strong ionization discharge plasma lightning rejection device |
| CN205945047U (en) * | 2016-08-24 | 2017-02-08 | 扬州华峰防雷新科技有限公司 | Thunder system device can be changed in change |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766681A (en) * | 2018-06-29 | 2018-11-06 | 国网湖南省电力有限公司 | Spherical composite insulator |
| CN108766681B (en) * | 2018-06-29 | 2023-12-12 | 国网湖南省电力有限公司 | Spherical composite insulator |
| CN109742717A (en) * | 2019-01-16 | 2019-05-10 | 成都中轨轨道设备有限公司 | A kind of novel high-speed rail being easily installed drive thunder device |
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Application publication date: 20170613 |