CN104538239B - A kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle - Google Patents
A kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle Download PDFInfo
- Publication number
- CN104538239B CN104538239B CN201410664130.5A CN201410664130A CN104538239B CN 104538239 B CN104538239 B CN 104538239B CN 201410664130 A CN201410664130 A CN 201410664130A CN 104538239 B CN104538239 B CN 104538239B
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- Prior art keywords
- air
- necking down
- nozzle
- nozzle body
- arc
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- 230000003068 static effect Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 5
- 230000009514 concussion Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 210000000867 larynx Anatomy 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 25
- 238000007664 blowing Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 8
- 230000002093 peripheral effect Effects 0.000 abstract description 5
- 238000000151 deposition Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000012491 analyte Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
- H01H33/7023—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle
- H01H33/703—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by an insulating tubular gas flow enhancing nozzle having special gas flow directing elements, e.g. grooves, extensions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/22—Selection of fluids for arc-extinguishing
Landscapes
- Circuit Breakers (AREA)
Abstract
The invention discloses a kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle.The air slot that air outlet section is extended in necking down throat or from necking down throat is offered on the inwall of nozzle body, air slot is inlet side open communication air inlet section, go out the straight-through groove that end opening connects air outlet section, when in use, arc extinguishing gases can blow down some metal dusts and ionization analyte from moving arcing contact and static arc contact, these material mixings form mixed gas in arc extinguishing gases, the mixed gas will pressurize when necking down throat is entered from open air inlet section, so that air slot can guide the impurity that these are deposited to be flowed to air outlet section, so that the gap that the impurity for depositing will not block between the wall surface of the hole of necking down throat and the outer peripheral face of static arc contact, avoid occurring the not smooth problem of arc extinguishing air-flow during air blowing arc extinguishing.
Description
Technical field
The present invention relates to a kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle.
Background technology
With the fast development of national economy, the amount of power of China steeply rises, but the energy of China is mainly distributed on west
Portion area, and the larger city of electricity needs is then concentrated mainly on the southeastern coastal areas, therefore match somebody with somebody to preferably carry out resource
Put, it is existing both economical electric power resource concocting method to improve power transfer efficiency, line efficiency and transmission line capability, especially
It is that in the last few years, with the continuous development of the extra-high voltage direct-current transmission engineering of domestic power network, the power network of most area is
Highest rated current up to the direct current transportation of 5000A is realized, this is also just to the through-flow energy of the DC switch equipment suitable for power network
Power proposes requirement higher, moreover in next step when needing for power network to be upgraded to highest rated current up to 6000A, to power network
In the through-current capability of each switch will propose requirement higher.And in existing direct current network, carry out the switchgear of high current conversion
Primary cut-out is generally selected, the arc extinguishing ability of primary cut-out is again to play important influence to its through-current capability.At present, it is high
The main arc quenching method of voltage breaker is the mode of sulfur hexafluoride gas arc blow-out, with the dynamic and static end divide-shut brake of primary cut-out
Action, can produce high-voltage arc between moving arcing contact and static arc contact, and this partial high pressure electric arc is by moved end assembling
In nozzle, that is, in spout, now air blowing arc extinguishing will be carried out to the gases at high pressure spurted in spout by moved end, but
While air blowing arc extinguishing, the move toward one another that static arc contact and nozzle can be relative in the axial direction, especially in static arc contact by spray
During the throat of mouth, the small gap between static arc contact and nozzle throat can hinder the metal dust and electricity produced in air blowing arc extinguishing
From impurity such as analytes, so that occurring the not smooth phenomenon of air-flow in nozzle, normal air blowing arc extinguishing efficiency is influenceed, also cause high pressure
The through-current capability reduction of breaker.
The content of the invention
Avoid the nozzle of the not smooth problem of arc extinguishing air-flow occur during air blowing arc extinguishing it is an object of the invention to provide a kind of,
A kind of arc-chutes using the nozzle and breaker, the transfer switch unit using the arc-chutes are additionally provided simultaneously.
In order to realize the above object the technical scheme of nozzle is as follows in the present invention：
Nozzle, including cannula-like nozzle body, the endoporus of nozzle body is by the air inlet section, the necking down that set gradually vertically
Throat and air outlet section are constituted, and necking down throat is narrower than inlet, outlet section, offered on the inwall of nozzle body in necking down throat or from
Necking down throat extends to the air slot of air outlet section, and air slot is inlet side open communication air inlet section, goes out end opening connection air outlet section
Straight-through groove.
Air slot is the axially extending helicla flute around nozzle body.
The bearing of trend of helicla flute is the single thread rotation direction with the central axis of nozzle body as axis.
The step surface towards air inlet section that transition is connected between air inlet section and necking down throat, step are provided with nozzle body
The outside in face and the wall surface of the hole of air inlet section are connected by inner concave arc surface transition, air slot enter end opening be in step surface inner side
And the intermediate location between the wall surface of the hole of necking down throat.
The technical scheme of arc-chutes of the invention is as follows：
Arc-chutes, including the dynamic and static contact being oppositely arranged and the nozzle being assemblied on moving contact, nozzle have cannula-like
Nozzle body, the endoporus of nozzle body is made up of the air inlet section, necking down throat and the air outlet section that set gradually vertically, necking down throat
It is narrower than inlet, outlet section, offered on the inwall of nozzle body in necking down throat or extend to leading for air outlet section from necking down throat
Air drain, air slot is inlet side open communication air inlet section, go out end opening connects the straight-through groove of air outlet section.
Air slot is the axially extending helicla flute around nozzle body.
The bearing of trend of helicla flute is the single thread rotation direction with the central axis of nozzle body as axis.
The technical scheme of breaker of the invention is as follows：
Breaker, including tank body and its arc-chutes of interior assembling, arc-chutes include the dynamic and static contact and the assembling that are oppositely arranged
Nozzle on moving contact, nozzle has the nozzle body of cannula-like, and the endoporus of nozzle body is by entering for setting gradually vertically
Gas section, necking down throat and air outlet section composition, necking down throat are narrower than inlet, outlet section, are offered on the inwall of nozzle body in contracting
Neck throat extends to the air slot of air outlet section from necking down throat, and air slot is inlet side open communication air inlet section, goes out end opening company
The straight-through groove of logical air outlet section.
The technical scheme of transfer switch unit of the invention：
Transfer switch unit, including breaker parallel with one another includes tank body and its interior assembling with loop, breaker is shaken
Arc-chutes, arc-chutes include the dynamic and static contact being oppositely arranged and the nozzle being assemblied on moving contact, and nozzle has cannula-like
Nozzle body, the endoporus of nozzle body is made up of the air inlet section, necking down throat and the air outlet section that set gradually vertically, necking down throat
It is narrower than inlet, outlet section, offered on the inwall of nozzle body in necking down throat or extend to leading for air outlet section from necking down throat
Air drain, air slot is inlet side open communication air inlet section, go out end opening connects the straight-through groove of air outlet section.
The two ends for cut-offfing branch road, concussion loop and nonlinear resistance branch road are also parallel with diverter branch, are gone here and there in diverter branch
It is connected to breaker.
Offered on the inwall of nozzle body in the present invention in necking down throat or extend to air outlet section from necking down throat
Air slot, air slot is inlet side open communication air inlet section, go out end opening connects the straight-through groove of air outlet section, when in use, with
Dynamic and static contact point, feed motion, in the state of air inlet section of the static contact also in nozzle, from moving contact spray goes out
Arc gas can blow out the high-voltage arc between moving arcing contact and static arc contact, while can be blown from moving arcing contact and static arc contact
Lower some metal dusts and ionization analyte, these material mixings form mixed gas in arc extinguishing gases, the mixed gas
When necking down throat is entered from open air inlet section will pressurization, although and the fixed impurity that is mixed in mixed gas can be in nozzle
Gap between the wall surface of the hole of necking down throat and the outer peripheral face of static arc contact of main body forms and blocks, but air slot can guide these
The impurity for depositing flows to air outlet section, so that wall surface of the hole and quiet arc that the impurity for depositing will not block necking down throat are touched
Gap between the outer peripheral face of head, it is to avoid occur the not smooth problem of arc extinguishing air-flow during air blowing arc extinguishing.Meanwhile, because air guide
There is the guide function to air-flow in groove, so in the air blowing arc extinguishing stage, compared to the necking down throat of smooth surface, nozzle body in the present invention
In pressurization acceleration is carried out to air-flow not only through the Venturi tube effect of necking down throat, and guide channel can also draw to air-flow
Acceleration is led, so as to the overall flow velocity by arc extinguishing gases are improved, high speed arc extinguishing is realized, to improve the arc-rupturing capacity of whole arc-chutes.
Further, air slot is the axially extending helicla flute around nozzle body, and such air-flow is by with helical flow
Mode enters air outlet section and sprays, the mode that middle air-flow direct current sprays compared to existing technology, the spiral shell of arc extinguishing gases from necking down throat
The dynamic not single flowing that can increase arc extinguishing air-flow of eddy flow is formed, to increase the cooling effect and the cooling effect to static arc contact of itself
Really；The arc extinguishing air-flow of helical flow can increase flow velocity by way of spiral accelerates simultaneously, further improve air-flow in air inlet section
Flow velocity, improve arc-rupturing capacity.Meanwhile, after the acceleration of arc extinguishing gases spiral, the solid impurity in mixed gas will be in centrifugal force
In the presence of be placed on the internal face of the groove bottom of air slot or nozzle body, will avoid that solid impurity is in static arc contact
Outer peripheral face slide and the scuffing that is caused to the outer peripheral face of static arc contact.
Brief description of the drawings
Fig. 1 is the circuit diagram of transfer switch unit of the invention；
Fig. 2 is the structural representation of the arc-chutes of breaker in Fig. 1；
Fig. 3 is the structural representation of nozzle in Fig. 2.
Specific embodiment
The embodiment of transfer switch unit in the present invention：As shown in Figure 1 to Figure 3, the transfer switch unit is a kind of being applicable
The direct current change-over switch of 6000A is reached in rated current, including nonlinear resistance 1 parallel with one another, concussion loop 2, cut-off branch
Road 3 and diverter branch 4, cut-off the component that cut-offs employed in branch road 3 and diverter branch 4 and are breaker, the breaker bag
The arc-chutes of tank body and its interior assembling are included, arc-chutes include the moving contact 6 being oppositely arranged, static contact 5 and are assemblied on moving contact 6
Nozzle 7, the nozzle body 71 of nozzle 7 is pipe sleeve shape, and the endoporus of nozzle body 71 by setting gradually from front to back vertically
Air outlet section 72, necking down throat 73 and air inlet section 74 are constituted, and the wall surface of the hole of necking down throat 73 is bus in from back to front gradually outwardly
The surface of revolution of the evagination camber line of bending, offers air slot 75 on the wall surface of the hole of necking down throat 73.Classify by groove structure
Words, the air slot 75 is straight-through groove, the front end of the inlet side open communication air inlet section 74 of air slot 75, and the end that goes out of air slot 75 is opened
The rear end of mouth connection air outlet section 72.If classifying by extended structure, the air slot 75 is around the axially extending of nozzle body 71
Helicla flute, the bearing of trend of the helicla flute is the single thread rotation direction with the central axis of nozzle body 71 as axis.
The air inlet section 74 of nozzle body 71 is the reaming section for becoming larger from front to back, and air inlet section 74 and necking down throat 73
By step surface transition backwards, the outside of the step surface and the wall surface of the hole of air inlet section 74 are connected by rear inner concave arc surface transition,
The inner side of step surface and the wall surface of the hole of necking down throat 73 are connected by outer convex globoidal transition, the subsequent corrosion of rear inner concave arc surface
The end opening that enters more than the subsequent corrosion of outer convex globoidal, and air slot 75 is on the outer convex globoidal.
The air outlet section 72 of nozzle body 71 is the reaming section for becoming larger from back to front, and the open rearward end of air inlet section 74 is than contracting
The front opening of neck throat 73 is bigger, so that the wall surface of the hole of the wall surface of the hole of necking down throat 73 and air outlet section 72 is also by preceding indent
Cambered surface transition is connected, and the subsequent corrosion of the preceding inner concave arc surface is smaller, and the end opening that goes out of gathering sill is on the preceding inner concave arc surface.
The front end opening of air outlet section 72 is divided into straight mouth section.
Nozzle body 71 is arranged on contact base by moving contact 6, and the cylinder body 8 of air cylinder is provided with contact base,
The rear of moving contact 6 is provided with the dynamic bearing 9 that guiding movement along the longitudinal direction is assemblied in cylinder body 8, and is offered on moving contact 6
Connect the inclined stomata 10 of the air inlet section 74 of the air chamber and nozzle body 71 of air cylinder, circumference of the stomata 10 in moving contact 6
On uniformly at intervals, air vent aperture is big on the common moving contact of aperture ratio of stomata 10, so ensure that gas smoothly reaches nozzle 7
Endoporus in, while air cylinder internal gas pressure can be reduced, gas counter-force when reducing separating brake reduces operating work.
Direct current change-over switch cut-offs branch road 3 and diverter branch 4 is in closing position in normal operation in the present embodiment
Put, parallel-connection structure shared regular link running current, due to there is inhomogeneities between parallel branch, is caused in the middle of branch road
Electric current it is not fully identical, but the total current of the electric current that passes through of each branch road far smaller than circuit operation, solve capacity
The requirement of through-current capability in lifting.When system operation mode needs to change, breaker receives instruction head first in diverter branch 4
First separating brake, breaker keeps combined floodgate to be failure to actuate in cut-offfing branch road 3, and one is set up in △ t between breaker fracture in diverter branch 4
Determine voltage, be transferred completely into electric current and cut-off branch road 3, transfer process is completed by cut-offfing branch road 3.Secondly, diverter branch 4 is in separating brake
After △ t, it is ensured that under conditions of insulating requirements, cut-off branch road 3 and receive separating brake instruction beginning separating brake, vibration branch road gradually forms zero passage
The oscillating current of point, under the cooperation of the energy absorption of nonlinear resistance 1, cut-offs branch road 3 and completes arc extinguishing, smoothly realizes that electric current turns
Change.
Direct current change-over switch uses the topological structure of brand-new identical arc quenching chamber structure parallel form in the present embodiment, very
The effective through-current capability for improving change-over switch.When needing change-over switch to act, diverter branch 4 is disconnected first
Switch, sets up certain voltage between the fracture of diverter branch 4（Being equal to 4 liang of terminal impedances of diverter branch increases）, electric current turn
Move on to and cut-off branch road 3, diverter branch 4 ensures under conditions of insulation, from cut-offfing with branch road 3, oscillation circuit and nonlinear resistance 1
Electric current is completed to walk around function.Secondly, in order to ensure that change-over switch can successfully realize the conversion of high current, arc quenching chamber structure is entered
Row optimization, enhances the connecting-disconnecting function of single arc-chutes.In the moving arcing contact of expansion connection air cylinder air chamber and spout inner chamber
Stomata 10, can so prevent air velocity from reducing.The chamber volume of air cylinder quickly reduces during separating brake, and air pressure increases
Plus, gas is excluded by stomata 10, and because the section of stomata 10 is smaller, air velocity is fast, and quick air velocity can strengthen blows
Arc ability, accelerates arc extinguishing；However, the gas for flowing through stomata 10 reaches spout inner chamber because volume increases and high speed impact spout
Inwall, speed reduction.Patent of the present invention ensures that gas smoothly reaches spout inner chamber by expanding stomata 10, not only, while also can
Air cylinder air pressure inside is reduced, back force in puff is reduced, the requirement to operating mechanism operating work is reduced.Finally, air-flow is formed and started from
Spout leaves quiet arc fingertip, changes spout structure, increases air-blowing effect, improves arc extinguishing ability.Spout throat opens spiral groove, by
In helical form, gas is flowed through during spout, and unsymmetrical knot is configured to draught head, and gas volume difference causes thermal differential, favorably
Turbulent flow is formed when gas flows through spout, the effect of horizontal arc blow-out is caused, strengthens arc extinction performance.
In the above-described embodiments, air slot is single-wire helix groove, and in other embodiments, the air slot can also be two-wire
Or helicla flute or straight-line groove or deep-slotted chip breaker more than two-wire etc..
In the above-described embodiments, air slot is in necking down throat, and in other embodiments, air slot can also be from necking down larynx
Portion extends to air outlet section.
The embodiment of breaker of the invention：In the present embodiment in the structure of breaker and above-described embodiment breaker knot
Structure is identical, therefore repeats no more.
The embodiment of arc-chutes of the invention：In the present embodiment in the structure of arc-chutes and above-described embodiment arc-chutes knot
Structure is identical, therefore repeats no more.
The embodiment of nozzle of the invention：The structure phase of the structure of nozzle and nozzle in above-described embodiment in the present embodiment
Together, therefore repeat no more.
Claims (9)
1. the nozzle body of nozzle, including cannula-like, the endoporus of nozzle body is by the air inlet section, the necking down larynx that set gradually vertically
Portion and air outlet section are constituted, and necking down throat is narrower than inlet, outlet section, it is characterised in that offered on the inwall of nozzle body in contracting
Neck throat extends to the air slot of air outlet section from necking down throat, and air slot is inlet side open communication air inlet section, goes out end opening company
The straight-through groove of logical air outlet section, be provided with nozzle body transition be connected between air inlet section and necking down throat towards air inlet section
Step surface, the outside of step surface and the wall surface of the hole of air inlet section are connected by inner concave arc surface transition, and the end opening that enters of air slot is in
Intermediate location between the inner side of step surface and the wall surface of the hole of necking down throat.
2. nozzle according to claim 1, it is characterised in that air slot is the axially extending spiral around nozzle body
Groove.
3. nozzle according to claim 2, it is characterised in that the bearing of trend of helicla flute is with the central shaft of nozzle body
Line is the single thread rotation direction of axis.
4. arc-chutes, including the dynamic and static contact being oppositely arranged and the nozzle being assemblied on moving contact, nozzle have the spray of cannula-like
Mouth main body, the endoporus of nozzle body is made up of the air inlet section, necking down throat and the air outlet section that set gradually vertically, necking down throat ratio
Inlet, outlet section is narrow, it is characterised in that is offered on the inwall of nozzle body in necking down throat or is extended to out from necking down throat
The air slot of gas section, air slot is inlet side open communication air inlet section, go out end opening connects the straight-through groove of air outlet section, nozzle body
Inside it is provided with the step surface towards air inlet section that transition is connected between air inlet section and necking down throat, the outside of step surface and air inlet section
Wall surface of the hole connected by inner concave arc surface transition, air slot enter end opening be in step surface inner side and necking down throat hole wall
Intermediate location between face.
5. arc-chutes according to claim 4, it is characterised in that air slot is the axially extending spiral around nozzle body
Groove.
6. arc-chutes according to claim 5, it is characterised in that the bearing of trend of helicla flute is with the center of nozzle body
Axis is the single thread rotation direction of axis.
7. breaker, including tank body and its arc-chutes of interior assembling, arc-chutes include the dynamic and static contact being oppositely arranged and are assemblied in
Nozzle on moving contact, nozzle has a nozzle body of cannula-like, and the endoporus of nozzle body is by the air inlet that sets gradually vertically
Section, necking down throat and air outlet section composition, necking down throat are narrower than inlet, outlet section, it is characterised in that opened up on the inwall of nozzle body
There is an air slot that air outlet section is extended in necking down throat or from necking down throat, air slot is inlet side open communication air inlet section, goes out
End opening connects the straight-through groove of air outlet section, and the direction that transition is connected between air inlet section and necking down throat is provided with nozzle body
The step surface of air inlet section, the outside of step surface and the wall surface of the hole of air inlet section are connected by inner concave arc surface transition, the inlet side of air slot
Intermediate location between inner side and the wall surface of the hole of necking down throat of the opening in step surface.
8. transfer switch unit, including it is parallel with one another cut-off branch road, concussion loop, nonlinear resistance branch road, in cut-offfing branch road
Be serially connected with breaker, breaker includes the arc-chutes of tank body and its interior assembling, arc-chutes include the dynamic and static contact being oppositely arranged and
The nozzle on moving contact is assemblied in, nozzle has the nozzle body of cannula-like, and the endoporus of nozzle body by setting gradually vertically
Air inlet section, necking down throat and air outlet section composition, necking down throat than inlet, outlet section it is narrow, it is characterised in that the inwall of nozzle body
On offer the air slot that air outlet section is extended in necking down throat or from necking down throat, air slot is inlet side open communication air inlet
Section, the straight-through groove for going out end opening connection air outlet section, are provided with transition and are connected between air inlet section and necking down throat in nozzle body
The step surface towards air inlet section, the outside of step surface and the wall surface of the hole of air inlet section connected by inner concave arc surface transition, air slot
Enter end opening be in step surface inner side and the wall surface of the hole of necking down throat between intermediate location.
9. transfer switch unit according to claim 8, it is characterised in that cut-off branch road, concussion loop and non-linear electricity
The two ends for hindering branch road are also parallel with diverter branch, and breaker is serially connected with diverter branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664130.5A CN104538239B (en) | 2014-11-20 | 2014-11-20 | A kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410664130.5A CN104538239B (en) | 2014-11-20 | 2014-11-20 | A kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104538239A CN104538239A (en) | 2015-04-22 |
| CN104538239B true CN104538239B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410664130.5A Active CN104538239B (en) | 2014-11-20 | 2014-11-20 | A kind of nozzle and arc-chutes, breaker, the transfer switch unit using the nozzle |
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| CN (1) | CN104538239B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244795A (en) * | 2015-10-09 | 2016-01-13 | 维龙（镇江）电工研究院有限公司 | Single-phase module for load switch-fuse combination unit |
| CN108091517A (en) * | 2017-12-23 | 2018-05-29 | 中国西电电气股份有限公司 | A kind of arc-chutes of high-voltage alternating-current filter group breaker |
| CN112103122B (en) * | 2020-08-24 | 2023-01-31 | 沈阳金昌蓝宇新材料股份有限公司 | Thin-wall dissimilar metal composite grounding contact and preparation method thereof |
| CN114400172B (en) * | 2021-12-10 | 2024-04-19 | 河南平高电气股份有限公司 | Nozzle of arc extinguishing chamber and arc extinguishing chamber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100918A (en) * | 1985-02-15 | 1986-10-01 | 株式会社日立制作所 | A kind of compressed gas type arc-extinguishing breaker |
| CN201112265Y (en) * | 2007-10-22 | 2008-09-10 | 沈阳工业大学 | Cyclone type nozzle high voltage gas blowing breaker with groove |
| CN201229893Y (en) * | 2008-06-30 | 2009-04-29 | 中国西电电气股份有限公司 | A converting switch circuit construction for high voltage DC transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010244742A (en) * | 2009-04-02 | 2010-10-28 | Japan Ae Power Systems Corp | Gas-blast circuit breaker |
-
2014
- 2014-11-20 CN CN201410664130.5A patent/CN104538239B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100918A (en) * | 1985-02-15 | 1986-10-01 | 株式会社日立制作所 | A kind of compressed gas type arc-extinguishing breaker |
| CN201112265Y (en) * | 2007-10-22 | 2008-09-10 | 沈阳工业大学 | Cyclone type nozzle high voltage gas blowing breaker with groove |
| CN201229893Y (en) * | 2008-06-30 | 2009-04-29 | 中国西电电气股份有限公司 | A converting switch circuit construction for high voltage DC transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104538239A (en) | 2015-04-22 |
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