CN106710952A - Gas circuit breaker with improved reclosure fault current interruption performance - Google Patents
Gas circuit breaker with improved reclosure fault current interruption performance Download PDFInfo
- Publication number
- CN106710952A CN106710952A CN201710098165.0A CN201710098165A CN106710952A CN 106710952 A CN106710952 A CN 106710952A CN 201710098165 A CN201710098165 A CN 201710098165A CN 106710952 A CN106710952 A CN 106710952A
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- Prior art keywords
- gas
- chamber
- storage chamber
- air storage
- air
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Classifications
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- 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
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
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- Circuit Breakers (AREA)
Abstract
The invention provides a gas circuit breaker with improved reclosure fault current interruption performance. The gas circuit breaker comprises a gas circuit breaker main body, wherein the gas circuit breaker main body comprises an expansion chamber, a gas compressing chamber, a first gas storage chamber, a second gas storage chamber and a hollow pull rod; an exhaust passage and a suction passage which are separated from each other are formed by the gas circuit breaker main body; at least one exhaust hole and at least one suction hole are formed in the second gas storage chamber; the exhaust passage is communicated with the expansion chamber and the exhaust hole in turn; and the suction passage is communicated with the suction hole and the gas compressing chamber. The gas circuit breaker with the improved reclosure fault current interruption performance, provided by the invention, has the advantages of improved reclosure fault current interruption performance and simple structure.
Description
Technical field
It is the present invention relates to gas-break switch field more particularly to a kind of with improving reclosing fault current break performance
Gas-break switch.
Background technology
The operation principle of gases at high pressure breaker is promptly to cool down simultaneously the arcing gas produced in electric current interrupting process
Effectively discharge, make the fast quick-recovery of whole device and keep good electric insulation state.Breaker with reclosing function,
Its function is after completion first time short circuit current cut-offs, reclosing operation can at the appointed time to be completed, if in system
Short circuit current is still present, function is cut-off by realize second short circuit current.Due to first time separating brake and second separating brake it
Between time interval it is very short, it is general to require to be 50ms to 500ms, therefore breaker must complete for the second time in this time interval
Separating brake cut-off before arc extinguishing gases state of insulation recovery process, i.e. gas in each chamber of arc-chutes returns to its specified initial shape
State, this needs to carry out careful design to reclosing gas recovery process.Current SF6 (sulfur hexafluoride) gases at high pressure breaker is main
It is divided into air pressing type and self extinguishing type.In order to realize that reclosing gas recovers function, typically in the unidirectional return-air valve of plenum chamber bottom design,
Insulating gas can be sucked from breaker support base cavity.But in breaker when short circuit current is cut-off, arcing gas discharge
Arcing gas generally also flow into support base cavity, cause the mixing of arcing gas and insulating gas, cause return-air valve suck gas
The insulation characterisitic of body declines, final influence reclosing fault current break performance.Existing some breakers are near return-air valve
Passage is opened up on neighbouring support base wall, it is therefore intended that suck the preferable insulating gas of quality nearby.But cannot avoid
While arcing gas, therefore it is extremely difficult to desired effects.
The content of the invention
For above-mentioned deficiency of the prior art, the present invention provides a kind of with improvement reclosing fault current break performance
Gas-break switch, there is provided the vent pathway for discharged arc gas and the air suction way for sucking insulating gas, and
Two current path is physically completely isolated, it is therefore prevented that arcing gas and the interactional possibility of insulating gas, so as to have
Improve the advantage of reclosing fault current break performance and simple structure.
To achieve these goals, the present invention provides a kind of disconnected with the gas for improving reclosing fault current break performance
Road device, including a gas-break switch body, the gas-break switch body include an expanding chamber, a plenum chamber, one first gas storage
Room, one second air storage chamber and a hollow pull rod, it is characterised in that the gas-break switch body forms a mutually isolated exhaust
Path and an air suction way, second air storage chamber form an at least steam vent and an at least suction hole, the exhaust channel according to
Secondary the connection expanding chamber and the steam vent, the air suction way connect the suction hole and the plenum chamber.
Preferably, also including one first dividing plate and a second partition；First bulkhead seal is fixed on first storage
In air chamber and first air storage chamber is divided into one first arcing gas mixing chamber and one first insulating gas air storage chamber；It is described
Second partition is sealingly fastened in second air storage chamber and second air storage chamber is divided into one second arcing gas and mixes
Room and one second insulating gas air storage chamber；The steam vent is formed at the second arcing gas mixing chamber, the suction hole shape
Second insulating gas air storage chamber described in Cheng Yu；The expanding chamber, the hollow pull rod, the first arcing gas mixing chamber and institute
The second arcing gas mixing chamber is stated to sequentially turn on to form the exhaust channel；The second insulating gas air storage chamber, described first
Insulating gas air storage chamber and the plenum chamber sequentially turn on to form the air suction way.
Preferably, the gas-break switch body forms an at least pod apertures, the first arcing gas mixing chamber and institute
The second arcing gas mixing chamber is stated to be turned on by the pod apertures.
Preferably, the gas-break switch body forms an at least linked hole, the first insulating gas air storage chamber and institute
State and turned on by the linked hole between the second insulating gas air storage chamber.
Preferably, the gas-break switch body forms a plurality of linked holes, at the gas-break switch body
When gate-dividing state, pass through at least described in one between the first insulating gas air storage chamber and the second insulating gas air storage chamber
Linked hole is turned on；When the gas-break switch body is in "on" position, the first insulating gas air storage chamber and described the
Turned on by all linked holes between two insulating gas air storage chambers.
Preferably, the hollow pull rod forms at least one adjacent to one end end sides of the first arcing gas mixing chamber
Breach, the hollow pull rod is turned on by the breach with the first arcing gas mixing chamber.
Preferably, also including a deflection cone, the deflection cone is fixed on the hollow pull rod adjacent to the first electric arc gas
One end of body mixing chamber, a conical surface and the breach of the deflection cone cooperatively form an at least flow-guiding mouth, and the conical surface is stretched
Enter in the hollow pull rod.
Preferably, led by a return-air valve combined mechanism between the first insulating gas air storage chamber and the plenum chamber
It is logical.
Preferably, the return-air valve combined mechanism includes a return-air valve seat, a return-air valve block and a return-air valve locating part, institute
State return-air valve seat and form a return-air hole, led by the return-air hole between the first insulating gas air storage chamber and the plenum chamber
Logical, the return-air valve combined mechanism is fixed on the side of the plenum chamber.
The present invention makes it have following beneficial effect as a result of above technical scheme：
The use of a mutually isolated exhaust channel and an air suction way so that exhaust channel and air suction way are physically
It is completely isolated, it is therefore prevented that arcing gas and the interactional possibility of insulating gas, opened so as to be effectively improved reclosing fault current
Disconnected performance.
Brief description of the drawings
Fig. 1 is in separating brake for the embodiment of the present invention with the gas-break switch for improving reclosing fault current break performance
The sectional view of state；
Fig. 2 closes a floodgate for the embodiment of the present invention is in the gas-break switch for improving reclosing fault current break performance
The sectional view of state；
Fig. 3 is the mplifying structure schematic diagram of the return-air valve combined mechanism of the embodiment of the present invention.
Specific embodiment
Below according to accompanying drawing 1-3, presently preferred embodiments of the present invention is provided, and be described in detail, make to be better understood when
Function of the invention, feature.
Refer to Fig. 1 and Fig. 2, a kind of gas with improvement reclosing fault current break performance of the embodiment of the present invention
Breaker, including a gas-break switch body 1, one first dividing plate 2 and a second partition 3.Wherein, gas-break switch body 1 is wrapped
Include an expanding chamber 11, a plenum chamber 12, one first air storage chamber 13, one second air storage chamber 14, a hollow pull rod 15, return-air valve combination
Mechanism 16, a piston 17, a spout 18, a moving arcing contact 19 and a static arc contact 20.
Gas-break switch body 1 forms a mutually isolated exhaust channel 4 and an air suction way 5, the shape of the second air storage chamber 14
Into an at least steam vent 143 and an at least suction hole 144, exhaust channel 4 is sequentially communicated expanding chamber 11 and steam vent 143, air-breathing
Path 5 connects suction hole 144 and plenum chamber 12.
The use of a mutually isolated exhaust channel 4 and an air suction way 5 so that exhaust channel 4 and air suction way 5 are in thing
It is completely isolated in reason, it is therefore prevented that arcing gas and the interactional possibility of insulating gas, so as to be effectively improved reclosing failure electricity
Stream break performance.
First dividing plate 2 is sealingly fastened in the first air storage chamber 13 and the first air storage chamber 13 is divided into one first arcing gas
The insulating gas air storage chamber 132 of mixing chamber 131 and 1 first；Second partition 3 is sealingly fastened in the second air storage chamber 14 and by second
Air storage chamber 14 is divided into one second arcing gas mixing chamber 141 and one second insulating gas air storage chamber 142；Steam vent 143 is formed
In the second arcing gas mixing chamber 141, suction hole 144 is formed at the second insulating gas air storage chamber 142；Expanding chamber 11, hollow drawing
Bar 15, the first arcing gas mixing chamber 131 and the second arcing gas mixing chamber 141 sequentially turn on to form exhaust channel 4；Second is exhausted
Edge gas air storage chamber 142, the first insulating gas air storage chamber 132 and plenum chamber 12 sequentially turn on to form air suction way 5.
In the present embodiment, gas-break switch body 1 forms an at least pod apertures 133 and an at least linked hole 134, the first electricity
The arcing gas mixing chamber 141 of arc gas mixing chamber 131 and second is turned on by pod apertures 133.First insulating gas air storage chamber 132
And second turned between insulating gas air storage chamber 142 by linked hole 134.The number and shape of linked hole 134 are not limited.
Gas-break switch body 1 forms a plurality of linked holes 134, when gas-break switch body 1 is in gate-dividing state, the
Turned on by an at least linked hole 134 between one insulating gas air storage chamber 132 and the second insulating gas air storage chamber 142；Work as gas
When breaker body 1 is in "on" position, lead between the first insulating gas air storage chamber 132 and the second insulating gas air storage chamber 142
Whole linked holes 134 are crossed to turn on.
Hollow pull rod 15 forms an at least breach 151 adjacent to one end end sides of the first arcing gas mixing chamber 131, in
Empty pull bar 15 is turned on by breach 151 with the first arcing gas mixing chamber 131.
In the present embodiment, also including a deflection cone 152, deflection cone 152 is fixed on hollow pull rod 15 adjacent to the first electric arc gas
During one end of body mixing chamber 131, the conical surface of deflection cone 152 and breach 151 cooperatively form an at least flow-guiding mouth, and the conical surface is stretched into
In empty pull bar 15.
Fig. 3 is referred to, is led by a return-air valve combined mechanism 16 between the first insulating gas air storage chamber 132 and plenum chamber 12
It is logical.Return-air valve combined mechanism 16 includes a return-air valve seat 161, a return-air valve block 162 and a return-air valve locating part 163, return-air valve
Seat 161 forms a return-air hole 164, is turned on by return-air hole 164 between the first insulating gas air storage chamber 132 and plenum chamber 12, returns
Air valve plate 162 and return-air valve locating part 163 are fixed in plenum chamber 12 and are located at the side of neighbouring return-air hole 164.
Fig. 1 and Fig. 2 is referred to, in the present embodiment with the gas-break switch for improving reclosing fault current break performance
Separating brake drop-out current during, the gas in expanding chamber 11 is carried out by force to the electric arc between moving arcing contact 19 and static arc contact 20
Compel cooling, a part for the arcing gas of generation along exhaust channel 4, since expanding chamber 11, flow through successively moving arcing contact 19,
Hollow pull rod 15, deflection cone 152, the first arcing gas mixing chamber 131, pod apertures 133, the and of the second arcing gas mixing chamber 141
Steam vent 143, finally discharges arc-chutes.
In the making process with the gas-break switch for improving reclosing fault current break performance of the present embodiment,
Under the negative pressure of plenum chamber 12 drives, the insulating gas outside arc-chutes flows through suction hole 144, the second insulating gas air storage chamber successively
142nd, linked hole 134, the first insulating gas air storage chamber 132 and return-air valve combined mechanism 16, finally enter plenum chamber 12.
The present invention is described in detail above in association with accompanying drawing embodiment, those skilled in the art can be according to upper
State it is bright the present invention is made many variations example.Thus, some of embodiment details should not constitute limitation of the invention, this
The scope that invention will be defined using appended claims is used as protection scope of the present invention.
Claims (9)
1. a kind of with the gas-break switch for improving reclosing fault current break performance, including a gas-break switch body, institute
Stating gas-break switch body includes an expanding chamber, a plenum chamber, one first air storage chamber, one second air storage chamber and a hollow pull rod,
Characterized in that, the gas-break switch body forms a mutually isolated exhaust channel and an air suction way, second storage
Air chamber forms an at least steam vent and an at least suction hole, and the exhaust channel is sequentially communicated the expanding chamber and the exhaust
Hole, the air suction way connects the suction hole and the plenum chamber.
2. according to right wants 1 with improve reclosing fault current break performance gas-break switch, it is characterised in that
Also include one first dividing plate and a second partition；First bulkhead seal is fixed in first air storage chamber and by described the
One air storage chamber is divided into one first arcing gas mixing chamber and one first insulating gas air storage chamber；The second partition sealing is fixed
In in second air storage chamber and by second air storage chamber be divided into one second arcing gas mixing chamber and one second insulation gas
Body air storage chamber；The steam vent is formed at the second arcing gas mixing chamber, and the suction hole is formed at second insulation
Gas air storage chamber；The expanding chamber, the hollow pull rod, the first arcing gas mixing chamber and second arcing gas are mixed
Room is closed to sequentially turn on to form the exhaust channel；The second insulating gas air storage chamber, the first insulating gas air storage chamber and
The plenum chamber sequentially turns on to form the air suction way.
3. according to right wants 2 with improve reclosing fault current break performance gas-break switch, it is characterised in that
The gas-break switch body forms an at least pod apertures, and the first arcing gas mixing chamber and second arcing gas are mixed
Room is closed to be turned on by the pod apertures.
4. according to right wants 3 with improve reclosing fault current break performance gas-break switch, it is characterised in that
The gas-break switch body forms an at least linked hole, and the first insulating gas air storage chamber and second insulating gas are stored up
Turned on by the linked hole between air chamber.
5. according to right wants 4 with improve reclosing fault current break performance gas-break switch, it is characterised in that
The gas-break switch body forms a plurality of linked holes, when the gas-break switch body is in gate-dividing state, institute
State and pass through between the first insulating gas air storage chamber and the second insulating gas air storage chamber linked hole conducting at least described in；Work as institute
When stating gas-break switch body and being in "on" position, the first insulating gas air storage chamber and the second insulating gas air storage chamber
Between turned on by all linked holes.
6. according to right wants 5 with improve reclosing fault current break performance gas-break switch, it is characterised in that
The hollow pull rod forms an at least breach, the hollow drawing adjacent to one end end sides of the first arcing gas mixing chamber
Bar is turned on by the breach with the first arcing gas mixing chamber.
7. according to right wants 6 with improve reclosing fault current break performance gas-break switch, it is characterised in that
Also include a deflection cone, the deflection cone is fixed on the hollow pull rod adjacent to one end of the first arcing gas mixing chamber,
One conical surface of the deflection cone cooperatively forms an at least flow-guiding mouth with the breach, and the conical surface stretches into the hollow pull rod
It is interior.
8. according to right wants 2~7 any one with improve reclosing fault current break performance gas-break switch, its
It is characterised by, is turned on by a return-air valve combined mechanism between the first insulating gas air storage chamber and the plenum chamber.
9. according to right wants 8 with improve reclosing fault current break performance gas-break switch, it is characterised in that
The return-air valve combined mechanism includes a return-air valve seat, a return-air valve block and a return-air valve locating part, and the return-air valve seat is formed
One return-air hole, is turned on, the return-air valve between the first insulating gas air storage chamber and the plenum chamber by the return-air hole
The side that combined mechanism is fixed in the plenum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098165.0A CN106710952B (en) | 2017-02-23 | 2017-02-23 | With the gas circuit breaker for improving reclosing fault current break performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710098165.0A CN106710952B (en) | 2017-02-23 | 2017-02-23 | With the gas circuit breaker for improving reclosing fault current break performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106710952A true CN106710952A (en) | 2017-05-24 |
| CN106710952B CN106710952B (en) | 2018-07-31 |
Family
ID=58911919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710098165.0A Active CN106710952B (en) | 2017-02-23 | 2017-02-23 | With the gas circuit breaker for improving reclosing fault current break performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106710952B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090271A (en) * | 2017-12-12 | 2018-05-29 | 中国西电电气股份有限公司 | A kind of motion simulation method for free valve block in gas circuit breaker |
| CN110109009A (en) * | 2019-04-30 | 2019-08-09 | 沈阳工业大学 | A kind of experimental rig and method for the research of mixed gas break performance |
| CN114758921A (en) * | 2021-12-23 | 2022-07-15 | 平高集团有限公司 | Arc extinguish chamber and circuit breaker using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009099499A (en) * | 2007-10-19 | 2009-05-07 | Toshiba Corp | Gas-blast circuit breaker |
| CN103109339A (en) * | 2010-07-16 | 2013-05-15 | 阿尔斯通技术有限公司 | Interrupter tube switchgear for two confined contact electrodes |
| CN104488058A (en) * | 2012-04-11 | 2015-04-01 | Abb技术有限公司 | Circuit breaker |
-
2017
- 2017-02-23 CN CN201710098165.0A patent/CN106710952B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009099499A (en) * | 2007-10-19 | 2009-05-07 | Toshiba Corp | Gas-blast circuit breaker |
| CN103109339A (en) * | 2010-07-16 | 2013-05-15 | 阿尔斯通技术有限公司 | Interrupter tube switchgear for two confined contact electrodes |
| CN104488058A (en) * | 2012-04-11 | 2015-04-01 | Abb技术有限公司 | Circuit breaker |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090271A (en) * | 2017-12-12 | 2018-05-29 | 中国西电电气股份有限公司 | A kind of motion simulation method for free valve block in gas circuit breaker |
| CN110109009A (en) * | 2019-04-30 | 2019-08-09 | 沈阳工业大学 | A kind of experimental rig and method for the research of mixed gas break performance |
| CN110109009B (en) * | 2019-04-30 | 2024-01-23 | 沈阳工业大学 | Test device and method for mixed gas breaking performance research |
| CN114758921A (en) * | 2021-12-23 | 2022-07-15 | 平高集团有限公司 | Arc extinguish chamber and circuit breaker using same |
| CN114758921B (en) * | 2021-12-23 | 2024-03-26 | 平高集团有限公司 | Explosion chamber and use circuit breaker of this explosion chamber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106710952B (en) | 2018-07-31 |
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