CN106877175B - A kind of device suitable for triggered gap - Google Patents
A kind of device suitable for triggered gap Download PDFInfo
- Publication number
- CN106877175B CN106877175B CN201510917540.0A CN201510917540A CN106877175B CN 106877175 B CN106877175 B CN 106877175B CN 201510917540 A CN201510917540 A CN 201510917540A CN 106877175 B CN106877175 B CN 106877175B
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- electrode
- trigger
- ground electrode
- field electrode
- triggered gap
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- 230000001960 triggered effect Effects 0.000 title claims abstract description 28
- 239000007921 spray Substances 0.000 claims abstract description 16
- 239000010935 stainless steel Substances 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 8
- 230000007704 transition Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims 1
- 238000010891 electric arc Methods 0.000 abstract description 10
- 238000002679 ablation Methods 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 210000002381 plasma Anatomy 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 229910001080 W alloy Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- H01T1/00—Details of spark gaps
- H01T1/20—Means for starting arc or facilitating ignition of spark gap
- H01T1/22—Means for starting arc or facilitating ignition of spark gap by the shape or the composition of the electrodes
-
- 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
- H01T14/00—Spark gaps not provided for in groups H01T2/00 - H01T13/00
-
- 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
- H01T15/00—Circuits specially adapted for spark gaps, e.g. ignition circuits
Abstract
The present invention provides a kind of devices suitable for triggered gap, comprising: triggered gap ontology (101), trigger (102) and control unit (103)；Triggered gap ontology (101) includes: high-field electrode (1) and ground electrode (2)；Ground electrode is equipped with volcanic crater formula ground electrode frustum cone structure；High-field electrode is equipped with the boss structure of smooth transition；The arm structure of overlapping edges；The attached stainless steel backing plate of electrode；Volcanic crater formula ground electrode frustum cone structure can protect spray chamber aperture from ablation, guarantee the triggering performance in gap；Smooth high-field electrode boss structure can mitigate electric arc to the rotary table ablation of high-field electrode center, promote electrode through-current capability；The arm structure of overlapping edges can mitigate electrode edge ablation, promote the through-flow performance of electrode and overall mechanical strength；Ground electrode and the attached stainless steel backing plate of high-field electrode, can further promote electrode mechanical strength.
Description
Technical field
The present invention relates to a kind of devices of triggered gap, and in particular to large capacity SF under a kind of mesohigh grade6Between triggering
The device of gap.
Background technique
In pulse power field, with the development of high-power triggered gap technology, the triggering and conducting time can be shortened to
Few tens of nano-seconds grade, discharge capacity can achieve thousands of coulombs, and have very high resistance to voltage levels.Triggered gap actuation time is remote
Lower than ordinary tap, controllability is strong, and technical performance is high, is easy to constitute quick-make switch, can be used as core devices formed it is special
Using the numerous scabrous technical problems long of solution power grid.High-power triggered gap is divided into vacuum and SF6Two kinds of triggered gap,
Wherein SF6Triggered gap can apply high voltage grade.
SF6Triggered gap relies primarily on electric arc and realizes through-flow, and the generation of electric arc is bound to scaling loss electrode, in high voltage and big electricity
It flows down even more serious.In order to guarantee that gap has stable acting characteristic and long electrical endurance, it is necessary to try to make shape between electrode
At electric arc quickly leave spot and keep constantly movement, until extinguish.The structure of electrode and its through-flow Induced magnetic field, are shadows
The key factor for ringing arc motion characteristic, in SF6In triggered gap development process, the touching of vacuum circuit breaker helicla flute is mostly directly applied
Header structure is easy to cause injection cavity pressure insufficient, and plasma jet jetting height is inadequate, and main gap is not easy to be connected, the starting the arc
Arcing standstill time is long afterwards, and it is serious to will lead to ablation at electrode centers platform, when arc motion to electrode edge can be stagnated again,
Electrode edge, which also will appear obviously molten trace, above-mentioned phenomenon, undoubtedly will affect SF6The promotion of triggered gap electric property.
Summary of the invention
To overcome drawbacks described above, the present invention provides a kind of devices suitable for triggered gap, comprising: volcanic crater formula it is electric
Pole frustum cone structure；The high-field electrode boss structure of smooth transition；The arm structure of overlapping edges；The attached stainless steel backing plate of electrode；It can
To protect spray chamber aperture from ablation, guarantee the triggering performance in gap；Electric arc can be mitigated to burn high-field electrode center rotary table
Erosion promotes electrode through-current capability；It can guarantee electrode mechanical strength.
To achieve the above object, specific technical solution of the present invention is as follows:
A kind of device suitable for triggered gap, described device include: triggered gap ontology (101), trigger (102) and
Control unit (103)；The triggered gap ontology (101) includes: bushing (3) and electric discharge tank (4)；The electric discharge tank (4)
Top be connected with bushing (3), bottom is connected with trigger (102)；The outside of electric discharge tank (4) is provided with air valve
(5) and explosion rupture disk (6), the ground electrode (2) for being internally provided with high-field electrode (1) and being correspondingly arranged with high-field electrode (1).
The ladder of high-field electrode (1) vertical section central area gentle transition between the small top and the bottom in the big lower part in top
Shape.
Ground electrode (2) the vertical section central area is volcanic crater formula frustum cone structure, center rotary table inner hollow, with it
Internal dead ring (221) constitutes the spray chamber (22) of top drilling；Its rotary table formalness is in crateriform, spray chamber (22)
Spray chamber aperture (211) be located at volcanic crater formula rotary table bottom centre position；Its top sides edge and gentle transition between spiral arm.
Triggering pin electrode (222) is equipped with inside the dead ring (221).
The surface of high-field electrode (1) and ground electrode (2) is equipped with fluting (14), forms spiral arm；The rotation angle of the spiral arm
It is 45 degree, external edge is along interconnection.
The material of high-field electrode (1) and ground electrode (2) is copper-tungsten, and size is identical.
The back of high-field electrode (1) and ground electrode (2) is equipped with stainless steel backing plate (12).
The spiral arm of high-field electrode (1) is identical as the direction of rotation of spiral arm of ground electrode (2).
Described control unit (103) receives the control signal of external transmission, and control signal is converted into optical signal, leads to
Optical fiber is crossed to transmit out to the prime trigger of trigger (102).
The trigger (102) includes isolating transformer, prime trigger and the rear class triggering being connected with prime trigger
Device；The isolating transformer is connected with prime trigger and rear class trigger respectively；The rear class trigger and triggered gap sheet
The triggering pin electrode (222) of body (101) is connected.
Compared with the latest prior art, technical solution provided by the invention has the advantages that
(1) volcanic crater formula ground electrode frustum cone structure can protect spray chamber aperture from ablation, guarantee the triggering in gap
Energy；
(2) smooth high-field electrode boss structure can mitigate electric arc to the rotary table ablation of high-field electrode center, promote electrode
Through-current capability；
(3) arm structure of overlapping edges can mitigate electrode edge ablation, promote the through-flow performance of electrode and whole machinery
Intensity；
(4) ground electrode and the attached stainless steel backing plate of high-field electrode, can further promote electrode mechanical strength.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device suitable for triggered gap.
Fig. 2 is ground electrode front view.
Fig. 3 is ground electrode bottom view.
Fig. 4 is high-field electrode front view.
Fig. 5 is high-field electrode bottom view.
Wherein: 101- triggered gap ontology；102- trigger；103- control unit；1- high-field electrode；2- ground electrode；3-
Bushing；4- electric discharge tank；5- air valve；6- explosion rupture disk；11- boss；The stainless steel backing plate of 12-；The spiral arm of 13- overlapping edges；14-
Fluting；The volcanic crater 21- formula rotary table；22- spray chamber；211- spray chamber aperture；212- top sides edge；213- gentle transition area；221
Dead ring；222- triggers pin electrode.
Specific embodiment
The invention will be described in further detail with specific embodiment with reference to the accompanying drawing:
According to Fig. 1, injection triggered gap single unit system includes: triggered gap ontology 101, trigger 102 and control
Unit 103.
Triggered gap ontology 101 is equipped with a pair of of main electrode, is high-field electrode 1 and ground electrode 2, and ground electrode 2 is internally embedded one
A spray chamber 22.When triggering pin electrode 222 receives the start pulse signal of the output of trigger 102, occur in spray chamber 22
Electric discharge generates a large amount of plasmas and injects in the main gap being made of high-field electrode 1 and ground electrode 2, causes main gap conducting.
According to Fig.2, ground electrode 2 uses volcanic crater formula ground electrode frustum cone structure 21, wherein 2 material of ground electrode is copper
Tungsten alloy, center rotary table inner hollow constitute the spray chamber 22 of top drilling with dead ring 221；Rotary table formalness is in volcano
Mouth shape, spray chamber aperture 211 are located at 21 bottom centre position of volcanic crater formula rotary table, and the spray chamber of volcanic crater formula ground electrode rotary table is small
Insulation distance between hole 211 and high-field electrode 1 is bigger, ensure that main gap insulation performance, the logical master of small hole injection plasma touching
Behind gap, electric arc is easy to edge at the top of rotary table and powers on interpolar generation；It is carried out between edge and electrode spiral arm at the top of rotary table gentle
Transition processing is easy to electric arc and moves to spiral arm direction.
According to Fig.4, high-field electrode 1 uses smooth 11 structure of high-field electrode boss, wherein high-field electrode 1 and ground
2 material of electrode, size are identical, are symmetrically installed in the course of work with ground electrode 2；1 center of high-field electrode is designed to smooth boss
11 structures guarantee electric fields uniform, and excellent insulating property, electric arc is randomly generated in boss surface after jet flow triggers main gap, with this
Meanwhile also can induce electric arc and being moved from boss to spiral arm 13 rapidly, to mitigate the ablation to central platform.
According to Fig. 3, Fig. 5,13 processing of fluting is done on high-field electrode 1 and 2 surface of ground electrode, forms 8 spiral arms 13, often
It is 45 degree that spiral arm 13, which rotates angle, and after high-field electrode 1 and the installation of ground electrode 2, the direction of rotation of spiral arm 13 is identical, to ensure
Rotating the arc is formed when conducting electric current.High-field electrode 1 and ground electrode 2 are all made of 13 structure of spiral arm of overlapping edges, on the one hand draw
Conductive arc mitigates electrode erosion in electrode edge high speed rotation, and 8 spiral arms 13 are on the other hand formed entirety, promotes electrode machine
Tool intensity.
The stainless steel backing plate 12 of the equal attaching in the back side of high-field electrode and ground electrode, while not influencing electrode guide performance,
Electrode mechanical strength is further promoted, electric twisting during arcing is resisted, avoids the occurrence of spiral arm and twist off phenomenon.
It is to be understood that the content of present invention and specific embodiment are intended to prove the reality of technical solution provided by the present invention
Border application, should not be construed as limiting the scope of the present invention.Those skilled in the art open in spirit and principles of the present invention
Give, can various modifications may be made, equivalent replacement or improve.But these changes or modification are in the guarantor for applying for pending claim
Within the scope of shield.
Claims (7)
1. a kind of device suitable for triggered gap, described device includes: triggered gap ontology (101), trigger (102) and control
Unit (103) processed；The triggered gap ontology (101) includes: bushing (3) and electric discharge tank (4)；It is characterized by: described
The top of electric discharge tank (4) is connected with bushing (3), and bottom is connected with trigger (102)；The outside of electric discharge tank (4) is set
It is equipped with air valve (5) and explosion rupture disk (6), the ground electrode for being internally provided with high-field electrode (1) and being correspondingly arranged with high-field electrode (1)
(2)；
Ground electrode (2) the vertical section central area is volcanic crater formula frustum cone structure, center rotary table inner hollow, and inside it
Dead ring (221) constitute top drilling spray chamber (22)；Its rotary table formalness is in crateriform, the spray of spray chamber (22)
It penetrates chamber aperture (211) and is located at volcanic crater formula rotary table bottom centre position；Its top sides edge and gentle transition between spiral arm；
Described control unit (103) receives the control signal of external transmission, and control signal is converted into optical signal, passes through light
Fibre transmits out to the prime trigger of trigger (102)；
The trigger (102) includes isolating transformer, prime trigger and the rear class trigger being connected with prime trigger；Institute
Isolating transformer is stated to be connected with prime trigger and rear class trigger respectively；The rear class trigger and triggered gap ontology
(101) triggering pin electrode (222) is connected.
2. the apparatus according to claim 1, it is characterised in that: high-field electrode (1) the vertical section central area is top
The inverted trapezoidal of gentle transition between the big small top and the bottom in lower part.
3. the apparatus according to claim 1, it is characterised in that: be equipped with triggering pin electrode inside the dead ring (221)
(222)。
4. the apparatus according to claim 1, it is characterised in that: the surface of the high-field electrode (1) and ground electrode (2) is equipped with
It slots (14), forms spiral arm；The rotation angle of the spiral arm is 45 degree, and external edge is along interconnection.
5. the apparatus according to claim 1, it is characterised in that: the high-field electrode (1) and the material of ground electrode (2) are
Copper-tungsten, and size is identical.
6. the apparatus according to claim 1, it is characterised in that: the high-field electrode (1) and the back of ground electrode (2) are all provided with
There are stainless steel backing plate (12).
7. the apparatus according to claim 1, it is characterised in that: the spiral arm of the high-field electrode (1) and the rotation of ground electrode (2)
The direction of rotation of arm is identical.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510917540.0A CN106877175B (en) | 2015-12-10 | 2015-12-10 | A kind of device suitable for triggered gap |
| JP2018530715A JP2019500726A (en) | 2015-12-10 | 2016-07-21 | Device applied to trigger gap |
| PCT/CN2016/090909 WO2017096911A1 (en) | 2015-12-10 | 2016-07-21 | Device applicable to trigger gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510917540.0A CN106877175B (en) | 2015-12-10 | 2015-12-10 | A kind of device suitable for triggered gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106877175A CN106877175A (en) | 2017-06-20 |
| CN106877175B true CN106877175B (en) | 2019-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510917540.0A Active CN106877175B (en) | 2015-12-10 | 2015-12-10 | A kind of device suitable for triggered gap |
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| Country | Link |
|---|---|
| JP (1) | JP2019500726A (en) |
| CN (1) | CN106877175B (en) |
| WO (1) | WO2017096911A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105792497B (en) * | 2016-01-27 | 2017-12-26 | 西安交通大学 | A kind of plasma jet triggers anti-yaw damper rotating the arc electrode used for high-voltage switch |
| CN108322988A (en) * | 2018-04-12 | 2018-07-24 | 西安交通大学 | A kind of commutation switch device suitable for flexible DC power transmission dc circuit breaker |
| CN110913555B (en) * | 2019-12-06 | 2021-02-26 | 西安交通大学 | Plasma jet switch |
| CN113594872B (en) * | 2021-06-21 | 2022-11-18 | 中国电力科学研究院有限公司 | Self-rotating arc control electrode of gas-triggered gap switch and design method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE515702C2 (en) * | 1996-12-17 | 2001-09-24 | Abb Ab | Device and method for protecting an object against fault-related overcurrent (Case 3) |
| CN2850073Y (en) * | 2005-08-31 | 2006-12-20 | 北京伏安电气公司 | Follow current gap structure of spark gap |
| CN103326246B (en) * | 2013-05-27 | 2015-03-18 | 国家电网公司 | Three-electrode multi-channel gas spark switch |
| CN103441427B (en) * | 2013-09-09 | 2015-05-20 | 西安交通大学 | Multichannel gas spark switch applying plasma synthesis jet trigger technology |
| CN104022442B (en) * | 2014-05-26 | 2016-08-17 | 西安交通大学 | A kind of QA by-pass switch |
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2015
- 2015-12-10 CN CN201510917540.0A patent/CN106877175B/en active Active
-
2016
- 2016-07-21 JP JP2018530715A patent/JP2019500726A/en active Pending
- 2016-07-21 WO PCT/CN2016/090909 patent/WO2017096911A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017096911A1 (en) | 2017-06-15 |
| JP2019500726A (en) | 2019-01-10 |
| CN106877175A (en) | 2017-06-20 |
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