CN108198729A - A kind of double gas chamber high-pressure vacuum breakers - Google Patents
A kind of double gas chamber high-pressure vacuum breakers Download PDFInfo
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- CN108198729A CN108198729A CN201810141653.XA CN201810141653A CN108198729A CN 108198729 A CN108198729 A CN 108198729A CN 201810141653 A CN201810141653 A CN 201810141653A CN 108198729 A CN108198729 A CN 108198729A
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- vacuum
- air chamber
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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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present invention provides a kind of double gas chamber high-pressure vacuum breakers, including vacuum interrupter, the first sealed air chamber and the second sealed air chamber, vacuum extinction chamber outer wall is placed in the first sealed air chamber, the bellows of vacuum interrupter is placed in the second sealed air chamber, and the air pressure of the first sealed air chamber is not less than the air pressure of the second sealed air chamber.The present invention realizes vacuum interrupter exterior insulation pressure resistance level requirement；Both it had fully achieved environmental protection and has ensured exterior insulation again, while also avoid hyperbar gas and bellows is damaged.It is safe and reliable when can not only better meet bidirectional demand, and can be ensured that operation and maintenance.The structure can be applied to cylinder vacuum breaker and can-type vacuum circuit breaker, use scope is wide, meets the needs of different structure device.By the way that gas circuit is set to realize and devises to realize the gas circuit pillars of the double gas chambers of vacuum circuit breaker, meets and the needs of inflatable structure different location is set.
Description
Technical field
The invention belongs to high voltage electrical apparatus technical field, be related to high-voltage system by the use of using vacuum interrupter as cut-offfing unit
Switchgear, specially a kind of double gas chamber high-pressure vacuum breakers.
Background technology
Existing high-voltage circuitbreaker product mostly cut-offs medium using sulfur hexafluoride as electric insulation and circuit, and sulfur hexafluoride
A large amount of uses, pollution can be generated to environment.It is contemplated that the problem of environmental protection, vacuum circuit breaker is used under high pressure level,
The vacuum circuit breaker uses vacuum interrupter to cut-off and using environmentally friendly gas as dielectric.At this point, in order to ensure the needs that insulate
Very big gas pressure, however, hyperbar gas is easily destroyed bellows in vacuum interrupter.
Invention content
For problems of the prior art, the present invention provides a kind of double gas chamber high-pressure vacuum breakers, simple in structure,
Reasonable design can either realize environmental protection completely and can ensure exterior insulation, while hyperbar gas will not also make bellows
Into damage.
The present invention is to be achieved through the following technical solutions：
A kind of double gas chamber high-pressure vacuum breakers, including vacuum interrupter, the first sealed air chamber and the second sealed air chamber, very
Empty arc extinguishing chamber outer wall is placed in the first sealed air chamber, and the bellows of vacuum interrupter is placed in the second sealed air chamber, the first sealing
The air pressure of gas chamber is not less than the air pressure of the second sealed air chamber.
Preferably, the high-pressure vacuum breaker is cylinder vacuum breaker, is specifically included in cylinder vacuum breaker
Vacuum interrupter, the second sealed air chamber of the first sealed air chamber of pillar and pillar；
The boundary of the first sealed air chamber of pillar is formed outside the vacuum extinction room included in static side flange, cylinder vacuum breaker
Wall, arc-chutes insulating sleeve inner wall, conductive drum outer wall, moved end flange and gas circuit；
The boundary of the second sealed air chamber of pillar, which is formed, includes conductive tube inner wall, moved end flange and insulation column inner wall；Pillar
Arc extinguishing chamber bellows in vacuum circuit breaker are correspondingly arranged in the second sealed air chamber of pillar.
Further, the gas circuit includes the moved end flange gas circuit of connection and insulation column gas circuit.
Further, insulation column gas circuit or the tubular structure for connection insulation column both ends.
Further, when the tubular structure is placed in outside insulation column, using band cluster parachute hard material straight tube or electricity is climbed
Apart from enough hoses.
Further, when the tubular structure is placed in inside insulation column, using being opened up on insulation column in an axial direction
The pillar gas circuit formed through through-hole or hard material straight tube or hose to be independently arranged at intracavitary in pillar.
Preferably, the vacuum circuit breaker is can-type vacuum circuit breaker, is specifically included true in can-type vacuum circuit breaker
The second sealed air chamber of empty arc-chutes, the first sealed air chamber of pot type and pot type；
The boundary of the first sealed air chamber of pot type, which is formed, includes static side end flanges, static side busbar flange, inner tank wall, moved end
Vacuum extinction chamber outer wall, moved end insulation drum outer wall and moved end end flanges in busbar flange, can-type vacuum circuit breaker；
The boundary of the second sealed air chamber of pot type, which is formed, includes the moved end insulating cylinder inner wall of can-type vacuum circuit breaker and moved end end
Face flange；Bellows in can-type vacuum circuit breaker is correspondingly arranged in the second sealed air chamber of pot type.
Preferably, the environmentally friendly insulating gas of 0.15~0.8MPa is filled in the first sealed air chamber, is filled out in the second sealed air chamber
Fill the environmentally friendly insulating gas of 0~0.15MPa.
Preferably, the SF6 gases of 0~0.15MPa are filled in the first sealed air chamber, fill 0 in the second sealed air chamber~
The environmentally friendly insulating gas of 0.15MPa.
Compared with prior art, the present invention has technique effect beneficial below：
The present invention is designed by the double gas chambers for having used pressure different in vacuum circuit breaker, utilizes high gas pressure chamber reality
Vacuum interrupter exterior insulation pressure resistance level requirement is showed；Vacuum interrupter end corrugation pipe stress is made by low gas pressure chamber
Protection；Can be set simultaneously by high pressure ensures vacuum circuit breaker exterior insulation completely using environmentally friendly gas.Both ring is fully achieved
Guarantor ensures exterior insulation, while also avoid hyperbar gas and bellows is damaged again.
Further, by the restriction to high pressure and low pressure, bidirectional demand can not only be better met, and can be true
It is safe and reliable during guarantor's operation and maintenance.
Further, which can be applied to cylinder vacuum breaker and can-type vacuum circuit breaker, use scope is wide,
Meets the needs of different structure device.
Further, by the way that gas circuit is set to realize and devises to realize the gas circuit branch of the double gas chambers of vacuum circuit breaker
Column meets the needs of with the setting of inflatable structure different location.
Description of the drawings
Fig. 1 is the overall structure sectional view of the present invention.
Fig. 2 is cylinder vacuum breaker sectional view described in present example.
Fig. 3 is the inflatable structure sectional view of double gas circuit insulation columns described in present example.
Fig. 4 is middle can-type vacuum circuit breaker sectional view described in present example.
Wherein, 1 is vacuum interrupter；2 be circuit breaker external housing, and 3 be breaker gas chamber interlayer, and 4 be bellows, and 5 are
Driving member, 6 be the first inflatable structure, and 7 be the second inflatable structure, and 8 be operating mechanism, and A is the first sealed air chamber, and B is close for second
Seal gas chamber；
101 be the vacuum interrupter in cylinder vacuum breaker, and 102 be static side flange, and 103 be arc-chutes insulating sleeve,
104 be the bellows in cylinder vacuum breaker, and 105 be conductive tube, and 106 be touch spring group, and 107 be moved end flange, and 108 are
Insulated tension pole group, 109 be double gas circuit insulation columns, and 110 be pillar air valve, and 111 be pillar air valve, and 112 be pillar operating mechanism,
11A is moved end flange gas circuit, and 12A is pillar gas circuit, and 10A is the first sealed air chamber of pillar, and 11B is moved end flange inner cavity, and 12B is
Pillar inner cavity, 10B are the second sealed air chamber of pillar；
1091 be combined insulation pillar, 1092 be combination tracheae；
1093 it is integral insulation pillar, 1094 is whole tracheae；
201 be the vacuum interrupter in can-type vacuum circuit breaker, and 202 be static side end flanges, and 203 be static side insulation branch
Column, 204 be static side busbar flange, and 205 be static side busbar, and 206 be tank body, and 207 be moved end busbar, and 208 be moved end
Busbar flange, 209 be touch spring group, and 210 be insulated tension pole group, and 211 be pot type air valve, and 212 be pot type air valve, and 213 be tank
Formula operating mechanism, 214 be the bellows in can-type vacuum circuit breaker, and 215 be moved end insulating cylinder, and 216 be moved end end flanges,
20A is the first sealed air chamber of pot type, and 20B is the second sealed air chamber of pot type.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, it is described be explanation of the invention and
It is not to limit.
A kind of double gas chamber high-pressure vacuum breakers of the present invention, as shown in Figure 1, it, which includes one group of vacuum interrupter, cut-offs unit
And Liang Ge sealed air chamber, the first sealed air chamber A and the second sealed air chamber B, 1 outer wall of vacuum interrupter are placed in the first sealed air chamber
In A, the bellows 4 of vacuum interrupter is placed in the second sealed air chamber B.
Anticyclonic environmentally friendly insulating gas or SF6 gases, the second sealed air chamber B are filled in the first sealed air chamber A
Inside fill hypobaric environmentally friendly insulating gas.The blowing pressure of environmentally friendly insulating gas is filled in the first sealed air chamber A ranging from
0.15~0.8MPa fills the blowing pressure ranging from 0~0.15MPa of SF6 gases.The blowing pressure in the second sealed air chamber B
Ranging from 0~0.15MPa.
Specifically, a kind of double gas chamber high-pressure vacuum breakers, including circuit breaker external housing 2, are fixed at breaker
Vacuum interrupter 1 in external shell 2, the bellows 4 of the moved end setting of vacuum interrupter 1 fix vacuum for driven end and go out
Arc chamber 1 and the breaker gas chamber interlayer 3 for sealing moved end, the operating mechanism 8 being arranged on outside circuit breaker external housing 2, connection are true
The driving member 5 of empty arc-chutes 1 and operating mechanism 8, the first inflatable structure 6 being separately positioned on circuit breaker external housing 2 and the
Two inflatable structures 7；
It is formed one by 2 inner wall of circuit breaker external housing, 1 outer wall of vacuum interrupter and 3 outer wall of breaker gas chamber interlayer and is filled out
The first sealed air chamber A of environmentally friendly insulating gas or SF6 gases is filled, the first inflatable structure 6 is connected with the first sealed air chamber A；
By breaker gas chamber interlayer 3, isolation forms the of one filling environmental protection insulating gas in the circuit breaker external housing 2
Two sealed air chamber B, low second inflatable structure 7 are connected with the second sealed air chamber B；
For pressure in first sealed air chamber A not less than the pressure in the second sealed air chamber B, it is close that bellows 4 is set to second
It seals in gas chamber B, 5 hermetically passing the second sealed air chamber B of driving member connect transmission with bellows 4.Wherein, 6 He of the first inflatable structure
Second inflatable structure 7 be respectively adopted to air-chamber valve.
When vacuum circuit breaker is cylinder vacuum breaker；Circuit breaker external housing 2 includes what is set from top to bottom successively
Static side flange 102, arc-chutes insulating sleeve 103, moved end flange 107 and insulation column；Breaker gas chamber interlayer 3 uses conductive tube
105；101 static side of vacuum interrupter in cylinder vacuum breaker is fixed with static side flange 102, and moved end is close by conductive tube 105
Sealing is scheduled on moved end flange 107；
By in static side flange 102, cylinder vacuum breaker 101 outer wall of vacuum interrupter, in arc-chutes insulating sleeve 103
Wall, 105 outer wall of conductive tube and moved end flange 107 form pillar the first sealed air chamber A；
By the moved end end face of the vacuum interrupter 101 in cylinder vacuum breaker, 105 inner wall of conductive tube, moved end flange 107
Pillar the second sealed air chamber B is formed with insulation column inner wall；Bellows 104 in cylinder vacuum breaker is correspondingly arranged in pillar
Second sealed air chamber B；
First inflatable structure 6 and the second inflatable structure 7 are separately positioned on static side flange 102, moved end flange 107 or insulation branch
On column, and connected with corresponding gas chamber.
Wherein, moved end flange 107 includes moved end flange gas circuit 11A and moved end flange inner cavity 11B, and driving member 5 passes through moved end
Flange inner cavity 11B is set；Moved end flange gas circuit 11A for pillar the first sealed air chamber A and the first inflatable structure 6 connection or
Person is used for the connection of pillar the second sealed air chamber B and the second inflatable structure 7.
It is provided in insulation column or arc-chutes insulating sleeve 103 for the inflation knots of pillar the first sealed air chamber A and first
The connection of structure 6 or for pillar the second sealed air chamber B and the connection gas circuit of the second inflatable structure 7.The gas circuit is is separately provided
The hose of hard straight tube or belt end inside or outside insulation column or arc-chutes insulating sleeve 103 or for through setting
Put the through-hole on insulation column or arc-chutes insulating sleeve 103.
When vacuum circuit breaker is can-type vacuum circuit breaker；Circuit breaker external housing 2 includes the static side end face set gradually
Flange 202, tank body 206 and moved end end flanges 216；Breaker gas chamber interlayer 3 uses moved end insulating cylinder 215；Canister type breaks
201 static side of vacuum interrupter in the device of road is fixed by static side insulation column 203 and static side end flanges 202, and moved end passes through dynamic
The end sealing of insulating cylinder 215 is fixed on moved end end flanges 216；It is close that tank body 206 is separately provided for static side busbar 205
The static side busbar flange 204 of envelope and the moved end busbar flange 208 sealed for moved end busbar 207；
It is true by static side end flanges 202, static side busbar flange 204,206 inner wall of tank body, moved end busbar flange 208, pot type
201 outer wall of vacuum interrupter, 215 outer wall of moved end insulating cylinder and moved end end flanges 216 in empty breaker form pot type first
Sealed air chamber 20A；
By 201 moved end end face of vacuum interrupter, 215 inner wall of moved end insulating cylinder and the moved end end face in can-type vacuum circuit breaker
Flange 216 forms pot type the second sealed air chamber 20B；Bellows 214 in can-type vacuum circuit breaker is correspondingly arranged in pot type second
Sealed air chamber 20B；
First inflatable structure 6 and the second inflatable structure 7 are separately positioned on static side end flanges 202, static side busbar flange
204th, it on tank body 206, moved end busbar flange 208 or moved end end flanges 216, and is connected with corresponding gas chamber.
The structure of double gas chamber high-pressure vacuum breakers of the invention is suitable for double gas chamber cylinder vacuum breakers or double gas chamber tanks
Formula vacuum circuit breaker.
As shown in Fig. 2, double gas chamber cylinder vacuum breakers include the vacuum interrupter 101 in cylinder vacuum breaker, column
Bellows 104 in formula vacuum circuit breaker, static side flange 102, arc-chutes insulating sleeve 103, conductive tube 105, moved end flange
107, touch spring group 106, insulated tension pole group 108, double gas circuit insulation columns 109, pillar hyperbar room air valve 110, pillar is low
Air-pressure chamber air valve 111 and pillar operating mechanism 112.The composition boundary of the first sealed air chamber of pillar 10A includes the static side method
Orchid 102,101 outer wall of vacuum interrupter in cylinder vacuum breaker, 103 inner wall of arc-chutes insulating sleeve, outside conductive tube 105
The pillar gas circuit 12A on moved end flange gas circuit 11A and double gas circuit insulation columns 109 opened on wall, moved end flange 107, should
Anticyclonic environmentally friendly insulating gas or hypobaric SF6 gases are filled in the first sealed air chamber of pillar 10A.The second sealed air chamber of pillar
The boundary that forms of 10B includes 105 inner wall of conductive tube, the moved end flange inner cavity 11B of moved end flange 107, double gas circuits insulation branch
Hypobaric environmentally friendly insulating gas, cylinder vacuum open circuit are filled in the pillar inner cavity 12B of column 109, second sealed air chamber of pillar 10B
Bellows 104 in device is in second sealed air chamber of pillar 10B.
Wherein, arc-chutes insulating sleeve 103 is porcelain bushing shell or compound insulating sleeve.Double gas circuit insulation columns 109 are exhausted for porcelain
Edge or composite insulator.105 upper and lower ends sealing means of conductive tube are end face seal, sealing or welded seal.End face
Sealing can be O-ring seal, and sealing can be Yx type sealing rings.Conductive tube 105 and the vacuum in cylinder vacuum breaker
The connection mode of 101 moved end conducting rod of arc-chutes is spring touch finger, watchband-shaped contactor, relying on oneself contact or is flexible coupling.Cylinder vacuum
The moved end that the both ends of bellows 104 in breaker are separately fixed at the vacuum interrupter 101 in cylinder vacuum breaker is conductive
On bar and moved end end cap.
Conductive tube 105 corresponds to the breaker gas chamber interlayer 3 in basic structure.
The pillar gas circuit 12A and pillar inner cavity 12B formed on double gas circuit insulation columns 109 is overall structure or combination knot
Structure.Overall structure is that the perforative through-hole of setting forms gas circuit in traditional single-chamber insulation column, and as shown in Figure 3a, composite structure is
Band tracheae or traditional single-chamber insulation column external belt tracheae inside traditional single-chamber insulation column.Inside traditional single-chamber insulation column
Include combined insulation pillar 1091 with air pipe structure and combine the sealing structure at tracheae 1092 and both ends.Sealing structure is end face
Sealing, sealing or welded seal.End face seal can be O-ring seal.Sealing can be Yx type sealing rings.Combine gas
Pipe 1092 is hard material straight tube or the hose of belt end.
As shown in Figure 3b, traditional single-chamber insulation column external belt air pipe structure, including integral insulation pillar 1093 and entirety
Tracheae 1094 and the sealing structure at both ends.Sealing structure is end face seal, sealing or welded seal.End face seal can be with
For O-ring seal.Sealing can be Yx type sealing rings.Whole tracheae 1094 is band cluster parachute hard material straight tube or creepage distance
The hose of enough belt ends.
Pillar hyperbar room air valve 110 may be mounted at double 109 lower ends of gas circuit insulation column, equally may be mounted at moved end
On flange 107 or static side flange 102.
When pillar hyperbar room air valve 110 is mounted on moved end flange 107, double gas circuit insulation columns 109 without inflatable structure,
Then use common single-chamber insulation column.It when pillar hyperbar room air valve 110 is mounted on static side flange 102, inflates, moves from static side
It is adopted without inflatable structure, then moved end flange 107 using the structure for only including moved end flange inner cavity 11B, double gas circuit insulation columns 109 at end
With common single-chamber insulation column.
The wherein described environmentally friendly insulating gas is the SF6 gases of dry air, nitrogen or few content.
As shown in figure 4, double gas chamber can-type vacuum circuit breakers include the vacuum interrupter 201 in can-type vacuum circuit breaker, tank
Bellows 214 in formula vacuum circuit breaker, static side end flanges 202, static side insulation column 203, static side busbar flange 204 are quiet
Hold busbar 205, tank body 206, moved end busbar 207, moved end busbar flange 208, touch spring group 209, insulated tension pole
Group 210, moved end insulating cylinder 215, moved end end flanges 216, pot type hyperbar room air valve 211, pot type Low Pressure Chamber air valve 212 with
And pot type operating mechanism 213.
The composition boundary of the first sealed air chamber of pot type 20A includes the static side end flanges 202, static side insulation column 203,
Static side busbar flange 204, static side busbar 205,206 inner wall of tank body, moved end busbar 207, moved end busbar flange 208,
201 outer wall of vacuum interrupter, 215 outer wall of moved end insulating cylinder, moved end end flanges 216 in can-type vacuum circuit breaker, the pot type
Anticyclonic environmentally friendly insulating gas or SF6 gases are filled in first sealed air chamber 20A.The composition side of the second sealed air chamber of pot type 20B
Boundary includes 201 moved end end face of vacuum interrupter, 215 inner wall of moved end insulating cylinder, moved end end face in the can-type vacuum circuit breaker
Flange 216, touch spring group 209, insulated tension pole group 210 and pot type Low Pressure Chamber air valve 212, second sealed air chamber of pot type
Fill hypobaric environmentally friendly insulating gas in 20B, the bellows 214 in can-type vacuum circuit breaker is connected in can-type vacuum circuit breaker
Vacuum interrupter 201 moved end, and in second sealed air chamber of the pot type 20B.
Moved end insulating cylinder 215 corresponds to the breaker gas chamber interlayer 3 in basic structure.
Wherein, tank body 206 is horizontal or is vertically arranged.Static side insulation column 203 is porcelain insulator or composite insulator.Moved end is exhausted
Edge cylinder 215 is porcelain insulating cylinder or compound inslation cylinder.Insulating cylinder 215 left and right ends sealing means in moved end are end face seal, sealing
Or welded seal.End face seal can be O-ring seal.Sealing can be Yx type sealing rings.Moved end busbar 207 with
The connection mode of 201 moved end conducting rod of vacuum interrupter in can-type vacuum circuit breaker for spring touch finger, watchband-shaped contactor, rely on oneself it is tactile
Head is flexible coupling.Pot type hyperbar room air valve 211 may be mounted at static side end flanges 202, tank body 206 or moved end end face method
On orchid 216.
Claims (9)
1. a kind of double gas chamber high-pressure vacuum breakers, it is characterised in that：Including vacuum interrupter (1), the first sealed air chamber (A) and
Second sealed air chamber (B), vacuum interrupter (1) outer wall are placed in the first sealed air chamber (A), the bellows of vacuum interrupter (1)
(4) it is placed in the second sealed air chamber (B), the air pressure of the first sealed air chamber (A) is not less than the second sealed air chamber (B) air pressure.
2. a kind of double gas chamber high-pressure vacuum breakers according to claim 1, which is characterized in that the high pressure vacuum breaks
Road device is cylinder vacuum breaker, specifically includes the vacuum interrupter (101) in cylinder vacuum breaker, the first blanket gas of pillar
Room (10A) and the second sealed air chamber of pillar (10B)；
The boundary of the first sealed air chamber of pillar (10A) forms the vacuum included in static side flange (102), cylinder vacuum breaker and goes out
Arc chamber (101) outer wall, arc-chutes insulating sleeve (103) inner wall, conductive tube (105) outer wall, moved end flange (107) and gas circuit；
The boundary of the second sealed air chamber of pillar (10B), which is formed, includes conductive tube (105) inner wall, moved end flange (107) and insulation branch
Column wall；Arc extinguishing chamber bellows (104) in cylinder vacuum breaker are correspondingly arranged in the second sealed air chamber of pillar (10B).
3. a kind of double gas chamber high-pressure vacuum breakers according to claim 2, which is characterized in that the gas circuit includes connecting
Logical moved end flange gas circuit (11A) and insulation column gas circuit.
4. a kind of double gas chamber high-pressure vacuum breakers according to claim 3, which is characterized in that insulation column gas circuit or
Tubular structure for connection insulation column both ends.
5. a kind of double gas chamber high-pressure vacuum breakers according to claim 4, which is characterized in that the tubular structure is put
When outside insulation column, using with the enough hoses of cluster parachute hard material straight tube or creepage distance.
6. a kind of double gas chamber high-pressure vacuum breakers according to claim 4, which is characterized in that the tubular structure is put
When inside the insulation column, using the pillar gas circuit (12A) that is formed through through-hole, Huo Zhewei are opened up on insulation column in an axial direction
The hard material straight tube or hose being independently arranged in pillar inner cavity (12B).
A kind of 7. double gas chamber high-pressure vacuum breakers according to claim 1, which is characterized in that the vacuum circuit breaker
For can-type vacuum circuit breaker, vacuum interrupter (201) in can-type vacuum circuit breaker, the first sealed air chamber of pot type are specifically included
(20A) and the second sealed air chamber of pot type (20B)；
The boundary of the first sealed air chamber of pot type (20A), which is formed, includes static side end flanges (202), static side busbar flange (204), tank
Vacuum interrupter (201) outer wall, moved end insulation in body (206) inner wall, moved end busbar flange (208), can-type vacuum circuit breaker
Cylinder (215) outer wall and moved end end flanges (216)；
The boundary of the second sealed air chamber of pot type (20B) form include moved end insulating cylinder (215) inner wall of can-type vacuum circuit breaker with
Moved end end flanges (216)；Bellows (214) in can-type vacuum circuit breaker is correspondingly arranged in the second sealed air chamber of pot type
(20B)。
8. a kind of double gas chamber high-pressure vacuum breakers according to claim 1 to 7 any one, which is characterized in that first
The environmentally friendly insulating gas of 0.15~0.8MPa is filled in sealed air chamber, the environmental protection of 0~0.15MPa is filled in the second sealed air chamber absolutely
Edge gas.
A kind of 9. double gas chamber high-pressure vacuum breakers according to claim 1 to 8, which is characterized in that the first sealed air chamber
The SF6 gases of 0~0.15MPa of interior filling, the environmentally friendly insulating gas of 0~0.15MPa of filling in the second sealed air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141653.XA CN108198729A (en) | 2018-02-11 | 2018-02-11 | A kind of double gas chamber high-pressure vacuum breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141653.XA CN108198729A (en) | 2018-02-11 | 2018-02-11 | A kind of double gas chamber high-pressure vacuum breakers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108198729A true CN108198729A (en) | 2018-06-22 |
Family
ID=62593731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141653.XA Pending CN108198729A (en) | 2018-02-11 | 2018-02-11 | A kind of double gas chamber high-pressure vacuum breakers |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035635A (en) * | 2020-12-18 | 2021-06-25 | 国网宁夏电力有限公司电力科学研究院 | Bellows protection air chamber |
| CN113745042A (en) * | 2021-09-07 | 2021-12-03 | 南京南瑞继保电气有限公司 | Multi-fracture tank type high-voltage quick circuit breaker |
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| CN113745042A (en) * | 2021-09-07 | 2021-12-03 | 南京南瑞继保电气有限公司 | Multi-fracture tank type high-voltage quick circuit breaker |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180622 |
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| RJ01 | Rejection of invention patent application after publication |