CN107481823A - A kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network - Google Patents
A kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network Download PDFInfo
- Publication number
- CN107481823A CN107481823A CN201710855575.5A CN201710855575A CN107481823A CN 107481823 A CN107481823 A CN 107481823A CN 201710855575 A CN201710855575 A CN 201710855575A CN 107481823 A CN107481823 A CN 107481823A
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- CN
- China
- Prior art keywords
- arc
- parallel connection
- control unit
- power distribution
- distribution network
- 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.)
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Classifications
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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
-
- 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
- H01B17/48—Means for obtaining improved distribution of voltage; Protection against arc discharges over chains or other serially-arranged insulators
-
- 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
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
- H01T1/04—Means for extinguishing arc using magnetic blow-out
-
- 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/08—Overvoltage arresters using spark gaps structurally associated with protected apparatus
-
- 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
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Instant invention overcomes the defects of existing line lightning protection measures, there is provided a kind of anti-lightning strike tripping operation self arc parallel connection gaps system of new power distribution network.The present invention includes voltage detection unit, control unit, two metal electrodes and self arc unit.Two metal electrodes are electrically connected with the both ends of insulator respectively, and voltage detection unit is arranged on metal electrode.The signal output part of voltage detection unit and the signal input part of control unit are connected, and the signal output part of control unit is connected with self arc unit.The present invention is applied widely, and the distance of parallel connection gaps can be adjusted for different distribution lines, can be adjusted flexibly for the circuit of different relay protection parameters.Secondly, the energy of arc extinguishing come from thunder and lightning, it is not necessary to additionally from circuit or take other modes acquisition energy.Finally, with the switching time of flexible modulation coil can ensure that while release lightning surge line tripping will not be caused again for the size of different lightning surges.
Description
Technical field
It is in parallel more particularly, to a kind of anti-lightning strike tripping operation self arc of power distribution network the present invention relates to anti-lightning strike tripping operation field
Clearance system.
Background technology
With the deep progress that national " intelligent grid " is built, power supply safety of the power supply enterprise with power consumer to power distribution network
Property and reliability propose requirements at the higher level.Because power distribution network is directly connected to power supply quality and economic benefit.Thunder and lightning is as a kind of
The powerful natural calamity that can not suppress, not only threatens the life security of the mankind, and makes electric line, electrical equipment etc.
Therefore equipment may be destroyed, therefore take rational lightning protection measures significant.
Line thunder protection measure pass through frequently with installation lightning conducter, zinc oxide surge arresters, the measure energy such as installation portable protective gaps in parallel
Meet the basic demand of lightning protection.But lightning conducter is applied in circuit and is subject to certain restrictions, only in inlet-outlet line 1~2
Installed in kilometer range.Arrester can meet the requirement for discharging thunder and lightning, but discharge process is completely uncontrolled, when arrester damages
When ruining, the phenomenon of Leakage Current be present.Parallel connection gaps are to be installed in parallel a pair of metal electrodes to be formed at the both ends of insulator chain
Portable protective gaps, under the impact of direct lightning strike or induced lightening electric current gap can preferential discharge, so as to protect insulator chain from electricity
Arc flashover, make circuit without permanent fault.But the tripping rate with lightning strike of circuit can be increased, it is necessary to cut off work by automatic reclosing
Frequency electric arc.
The content of the invention
Instant invention overcomes the defects of existing line lightning protection measures, there is provided a kind of anti-lightning strike tripping operation of new power distribution network is certainly
Blow-out parallel connection gaps system.The present invention is applied widely, and the distance of parallel connection gaps, pin can be adjusted for different distribution lines
The circuit of different relay protection parameters can be adjusted flexibly.Secondly, the energy of arc extinguishing comes from thunder and lightning, it is not necessary to additionally from line
On road or other modes are taken to obtain energy.Finally, can be with flexible modulation coil for the size of different lightning surges
The switching time, ensure most soon release lightning surge while will not cause line tripping again.
In order to solve the above technical problems, technical scheme is as follows：
A kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network, including voltage detection unit, control unit, two metals
Electrode and self arc unit, wherein,
The signal output part of described voltage detection unit is connected with the signal input part of described control unit；
Two described metal electrodes electrically connect with the both ends of insulator respectively；
Described self arc unit includes two blowout coils, arc-chute cover, arc-chute and metallic rod, wherein,
Two described blowout coils are separately positioned on two metal electrodes, and blowout coil electrically connects with metal electrode；
The bottom ground connection of described metallic rod；
Described arc-chute cover is fixedly connected in described metallic rod；
Described arc-chute is arranged on the inner side of described arc-chute cover, and the metal contact fixation of described arc-chute is towards institute
The metal electrode stated.
The signal output part of described control unit is connected with described blowout coil；
The voltage detection unit is arranged on metal electrode.
The course of work of the present invention is as follows：
When lightning disturbance occurs, two metal electrodes it is in parallel with the both ends of insulator form parallel connection gaps, parallel connection gaps prior to
Insulator produces arc flash.The voltage detection unit for being arranged on metal electrode detects arc flash caused by metal electrode,
Detection signal is transmitted to control unit.Control unit control blowout coil is come into operation, and blowout coil is carried using flashover current
The energy of confession, produce magnetic field and elongate electric arc.Electric arc moves to the direction away from insulator, into arc-chute.Electric arc is divided
For some sections, electric arc is off.Arc-chute cover shields to the electric arc for entering arc-chute, prevents electric arc from continuing in arc-chute
Move ahead.
In a kind of preferable scheme, the signal output part of described voltage detection unit passes through a light output element and institute
The signal input part for the control unit stated carries out Phototube Coupling connection.Connected using Phototube Coupling, avoid arc flash from entering control
Unit processed, causes control unit to be damaged.
In a kind of preferable scheme, described control unit includes light receiving element, microprocessor and switch element, its
In,
Signal input part of the described light receiving element as control unit, the signal output part of described light receiving element and institute
The microprocessor electrical connection stated；
Described microprocessor electrically connects with described switch element.
In a kind of preferable scheme, described microprocessor is single-chip microcomputer.Single-chip microcomputer has low-power consumption, the spy of low cost
Point.
In a kind of preferable scheme, described switch element includes IGCT, the control pole of described IGCT and institute
The microprocessor electrical connection stated, the anode of described IGCT electrically connect with one end of described blowout coil, described brilliant lock
The negative electrode of pipe electrically connects with the other end of described blowout coil.IGCT can quickly be controlled by the signal of single-chip microcomputer open/
Off state so that blowout coil comes into operation after metal electrode produces arc flash, reach the effect of blow-out at once.
In a kind of preferable scheme, described two blowout coils are respectively wound around on two metal electrodes.Pass through stream
The flashover current of logical metal electrode, produce magnetic field and reach arc blowout effect.
Compared with prior art, the beneficial effect of technical solution of the present invention is：
1st, it is applied widely, the distance of metal electrode can be adjusted for different distribution lines, can also be directed to it is different after
Electric protection parameter is adjusted flexibly.
2nd, the energy of magnetic quenching comes from thunder and lightning, it is not necessary to additionally from circuit or take other modes obtain energy.
3rd, the switching time of blowout coil is adjusted for the flexible in size of different lightning surges, ensures most to discharge thunder soon
Line tripping will not be caused while electric overvoltage again.
Brief description of the drawings
Fig. 1 is the structure connection figure of the embodiment of the present invention.
Label declaration：1. insulator, 2. blowout coils, 3. metal electrodes, 4. arc-chute covers, 5. arc-chutes, 6. controls are single
Member, 7. voltage detection units, 8. metallic rods.
Fig. 2 is control unit structure connection figure of the embodiment of the present invention.
Embodiment
Accompanying drawing being given for example only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, some parts of accompanying drawing have omission, zoomed in or out, and do not represent the chi of actual product
It is very little；
To those skilled in the art, some known features and its explanation may be omitted and will be understood by accompanying drawing.
Technical scheme is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network, including voltage detection unit 7, light
Output element, the metal electrode 3, two of control unit 6, two blowout coil 2, arc-chute cover 4, arc-chute 5 and metallic rod 8, its
In,
Control unit 6 includes light receiving element, single-chip microcomputer and IGCT, as shown in Figure 2.
Each part annexation is as follows：
Voltage detection unit 7 is arranged on metal electrode 3；
The signal output part of voltage detection unit 7 electrically connects with the signal input part of light output element；
The signal output part of light output element and the signal input part of light receiving element carry out Phototube Coupling connection；
The signal output part of light receiving element and monolithic mechatronics；
The control pole of IGCT and monolithic mechatronics, the anode of IGCT electrically connect with one end of blowout coil 2, IGCT
Negative electrode electrically connects with the other end of blowout coil 2；
Two blowout coils 2 are respectively wound around on two metal electrodes 3；
Both ends of two metal electrodes 3 respectively with insulator 1 electrically connect；
The bottom ground connection of metallic rod 8；
Arc-chute cover 4 is fixedly connected in described metallic rod 8；
Arc-chute 5 is arranged on the inner side of described arc-chute cover 4, and the metal contact of described arc-chute 5 is fixed described in
Metal electrode 3.
Embodiment specific implementation process：
When lightning disturbance occurs, two metal electrodes 3 are in parallel with the both ends of insulator 1 to form parallel connection gaps, and parallel connection gaps are first
Arc flash is produced in insulator.The voltage detection unit 7 for being arranged on metal electrode 3 detects electric arc caused by metal electrode 3
Flashover, detection signal is transmitted to single-chip microcomputer by Phototube Coupling connection.Single-chip microcomputer controls IGCT, determines the throwing of blowout coil
Enter the moment.When IGCT closes, blowout coil forms complete loops, the energy provided using flashover current, and producing magnetic field will
Electric arc elongates.Electric arc moves to the direction away from insulator 1, into arc-chute 5.Electric arc is divided into some sections, and electric arc is put out
Go out.Arc-chute cover 4 shields to the electric arc for entering arc-chute 5, prevents electric arc from continuing to move ahead in arc-chute 5.
Same or analogous label corresponds to same or analogous part；
Term the being given for example only property explanation of position relationship described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to this hair
The restriction of bright embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all in the present invention
Spirit and principle within all any modification, equivalent and improvement made etc., should be included in the guarantor of the claims in the present invention
Within the scope of shield.
Claims (6)
1. a kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network, it is characterised in that including voltage detection unit, control
Unit, two metal electrodes and self arc unit, wherein,
The signal output part of described voltage detection unit is connected with the signal input part of described control unit；
Two described metal electrodes electrically connect with the both ends of insulator respectively；
Described self arc unit includes two blowout coils, arc-chute cover, arc-chute and metallic rod, wherein,
Two described blowout coils are separately positioned on two metal electrodes, and blowout coil electrically connects with metal electrode；
The bottom ground connection of described metallic rod；
Described arc-chute cover is fixedly connected in described metallic rod；
Described arc-chute is arranged on the inner side of described arc-chute cover, and the metal contact fixation of described arc-chute is towards institute
The metal electrode stated；
The signal output part of described control unit is connected with described blowout coil；
The voltage detection unit is arranged on metal electrode.
A kind of 2. anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network according to claim 1, it is characterised in that institute
The signal output part for the voltage detection unit stated is carried out by a light output element and the signal input part of described control unit
Phototube Coupling connects.
A kind of 3. anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network according to claim 2, it is characterised in that institute
The control unit stated includes light receiving element, microprocessor and switch element, wherein,
Signal input part of the described light receiving element as control unit, the signal output part of described light receiving element and institute
The microprocessor electrical connection stated；
Described microprocessor electrically connects with described switch element.
A kind of 4. anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network according to claim 3, it is characterised in that institute
The microprocessor stated is single-chip microcomputer.
5. the anti-lightning strike tripping operation self arc parallel connection gaps system of a kind of power distribution network according to claim 3 or 4, its feature exist
In described switch element includes IGCT, and the control pole of described IGCT electrically connects with described microprocessor, described
The anode of IGCT electrically connects with one end of described blowout coil, the negative electrode of described IGCT and described blowout coil
The other end electrically connects.
A kind of 6. anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network according to claim 5, it is characterised in that institute
Two blowout coils stated are respectively wound around on two metal electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855575.5A CN107481823B (en) | 2017-09-20 | 2017-09-20 | Lightning-proof tripping self-arc-extinguishing parallel gap system for power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710855575.5A CN107481823B (en) | 2017-09-20 | 2017-09-20 | Lightning-proof tripping self-arc-extinguishing parallel gap system for power distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107481823A true CN107481823A (en) | 2017-12-15 |
| CN107481823B CN107481823B (en) | 2023-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710855575.5A Active CN107481823B (en) | 2017-09-20 | 2017-09-20 | Lightning-proof tripping self-arc-extinguishing parallel gap system for power distribution network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854681A (en) * | 2019-11-02 | 2020-02-28 | 黎兴文 | Power electrical transformer with lightning protection |
| CN113054534A (en) * | 2021-02-24 | 2021-06-29 | 云南电网有限责任公司德宏供电局 | Method for improving arc extinguishing efficiency of multi-cavity structure by using magnetic field |
| CN114744488A (en) * | 2022-03-17 | 2022-07-12 | 广东电网有限责任公司 | Arc blowing type lightning protection device for power distribution network |
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| CN101000834A (en) * | 2006-12-22 | 2007-07-18 | 西安交通大学 | Current-limiting arc-control device of medium-voltage large current DC circuit breaker |
| CN102263376A (en) * | 2010-05-25 | 2011-11-30 | 王巨丰 | Gas arc extinguishing apparatus |
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| 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 |
| CN207149330U (en) * | 2017-09-20 | 2018-03-27 | 广东电网有限责任公司湛江供电局 | A kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network |
-
2017
- 2017-09-20 CN CN201710855575.5A patent/CN107481823B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101000834A (en) * | 2006-12-22 | 2007-07-18 | 西安交通大学 | Current-limiting arc-control device of medium-voltage large current DC circuit breaker |
| CN102263376A (en) * | 2010-05-25 | 2011-11-30 | 王巨丰 | Gas arc extinguishing apparatus |
| 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 |
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| CN207149330U (en) * | 2017-09-20 | 2018-03-27 | 广东电网有限责任公司湛江供电局 | A kind of anti-lightning strike tripping operation self arc parallel connection gaps system of power distribution network |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110854681A (en) * | 2019-11-02 | 2020-02-28 | 黎兴文 | Power electrical transformer with lightning protection |
| CN110854681B (en) * | 2019-11-02 | 2021-06-22 | 绿能电力科技有限公司 | Power electrical transformer with lightning protection |
| CN113054534A (en) * | 2021-02-24 | 2021-06-29 | 云南电网有限责任公司德宏供电局 | Method for improving arc extinguishing efficiency of multi-cavity structure by using magnetic field |
| CN114744488A (en) * | 2022-03-17 | 2022-07-12 | 广东电网有限责任公司 | Arc blowing type lightning protection device for power distribution network |
| CN114744488B (en) * | 2022-03-17 | 2023-09-29 | 广东电网有限责任公司 | Arc blowing type lightning protection device for power distribution network |
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| Publication number | Publication date |
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| CN107481823B (en) | 2023-08-01 |
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