CN104362035B - A kind of high-tension switch gear and its arc-chutes, tank body - Google Patents
A kind of high-tension switch gear and its arc-chutes, tank body Download PDFInfo
- Publication number
- CN104362035B CN104362035B CN201410602091.6A CN201410602091A CN104362035B CN 104362035 B CN104362035 B CN 104362035B CN 201410602091 A CN201410602091 A CN 201410602091A CN 104362035 B CN104362035 B CN 104362035B
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- China
- Prior art keywords
- power connection
- connection end
- face
- tank body
- baffling
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- Expired - Fee Related
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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
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
- H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas
-
- 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
- H01H33/76—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor
- H01H33/78—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid wherein arc-extinguishing gas is evolved from stationary parts; Selection of material therefor wherein the break is in gas
Landscapes
- Circuit Breakers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of high-tension switch gear and its arc-chutes, tank body.The solid insulating layer between the outlet position of blowout side and the internal face of tank body body being located on quiet power connection end is equipped with tank body, the side of solid insulating layer direction blowout side is baffling-face.When in use, after the insulating gas that the spout of driven power connection end is ejected is to the high-voltage arc arc extinguishing in fracture, blowout side spray on driven power connection end and/or quiet power connection end goes out, now not only flow velocity and temperature are still higher for insulating gas, and some metallic dusts and ionization analyte will be mingled with, now the mixed gas of high temperature and high speed will be collided on the baffling-face of fixed solid insulating barrier, the baffling-face will the mixed gas powerful to wind-force play a part of containment, to cause the energy of mixed gas to be released by collision effect, so as to avoid from impact erosion of the mixed gas that goes out of blowout side spray to the internal face of tank body body.
Description
Technical field
The present invention relates to a kind of high-tension switch gear and its arc-chutes, tank body.
Background technology
At present, customary insulation mode is divided into gas-insulated and fixed insulation in switchgear, and gas isolated mode is
Sulfur hexafluoride gas, nitrogen etc. are filled with arc-chutes, the mode of solid insulation is that polytetrafluoroethylene (PTFE), electricity are set in arc-chutes
Ceramic material, glass fabric, resin material etc., and gas-insulated is generally used in the insulation against ground of metal enclosed switchgear
Mode, its advantage is that the form of gas is not fixed, and in particular by the switchgear of air blowing arc extinguishing, gas-insulated is even more to play
The effect of arc extinguishing.But no matter gas-insulated uses sulfur hexafluoride gas or nitrogen, and its dielectric strength is below in fixed insulation
Fixed insulation material, and the insulating properties of insulating gas can by temperature in the tank body of metal enclosed switchgear, pressure,
The change influence of element ablation, causes metal enclosed switchgear to be adopted under equal voltage class using gas isolated tank body ratio
It is big with the tank body external diameter of open type switchgear.
When metal enclosed switchgear carries out cut-offfing action, insulation is spurted from the dynamic power connection ends of arc-chutes to quiet power connection end
Gas, insulating gas is by the electric arc between blowing-out static arc contact and moving arcing contact, and it is logical to flow through the cooling in fixed contact pedestal
Road --- air side of the open type on fixed contact pedestal periphery or the surface for flowing through static arc contact --- is on static arc contact periphery
The air side of open type, injects directly on and baffling is carried out on the internal face of tank body.But because of high-temperature electric arc meeting between dynamic and static connection end
Heat insulating gas so that the pressure of insulating gas rises, insulating capacity declines, and the dynamic power connection end of arc-chutes utilizes machinery side
Formula manufactures pressure differential or carries out arc extinguishing using arc-chutes pressure itself difference, while high-temperature insulation gas is blowed into the quiet of arc-chutes
Power connection end is cooled down, so during high-temperature insulation gas cooling, the member of the quiet power connection end of gas meeting ablation arc-chutes
Part, to produce a certain amount of metallic dust and ionization analyte in the gas channel of quiet power connection end, this part dust and decomposition
Thing and the insulating gas not cooled down thoroughly will be directly blown onto the internal face of tank body from the air side on quiet power connection end, are mingled with
Dust and analyte in insulating gas can burn and corrode the tank skin of tank body, so that the internal face of tank body is uneven, weight
Then arc-chutes will be caused to puncture or discharge over the ground, so Cubicle Gas-Insulated Switchgear usually requires to go out by extension
Arc chamber static side gas channel reduces insulating gas temperature.
But, can only be in the cooling duct in the quiet power connection end of arc-chutes if extending gas channel in limited space
Increase deflection plate, but the effect of deflection plate is also limited, when the tank body internal diameter of Cubicle Gas-Insulated Switchgear contracts
It is small to a certain extent when, insulation against ground will become very sensitive, as long as there is the reduction of some insulating properties, may result in and put over the ground
Electricity punctures, and now has no baffle plate to influence little to the insulating properties of whole arc-chutes.
And with the development of the society, the density of population is continuously increased, requirement of the modern society to the utilization rate in space also with
Raising so that the demand more and more higher that market reduces to the appearance and size of metal enclosed switchgear, such as power network requirement of invitation for bid
In, the width of 252kV three-phase split-phase metal enclosed switchgears is down to 1500mm from initial 2300mm, such as with hexafluoro
Change the breaker that sulphur gas is dielectric, if the diameter itself of arc-chutes does not reduce, the tank body of metal enclosed switchgear
Diameter has been reduced to a limit, if further reducing tank diameter, only increases tank body interior insulation gas pressure, but this
Method not only wastes gas, but also has an impact to the safety of metal enclosed switchgear, and design pressure is improved after all, not only
Increase material cost, and also need to the authentication of professional qualification of greater degree.
The content of the invention
Internal face is avoided to be gone out by the high-voltage switch gear that the insulating gas impact of high temperature is burnt it is an object of the invention to provide a kind of
The tank body of arc chamber, while additionally providing a kind of arc-chutes using the tank body and the high-tension switch gear using the arc-chutes.
In order to realize the above object the technical scheme of tank body is as follows in the present invention：
Tank body, including for the tank body body that the dynamic and static power connection end that is oppositely arranged loads, being provided with tank body body is used for every setting
Solid insulating layer between the blowout side set on dynamic power connection end and/or quiet power connection end and the internal face of tank body body, solid
The side side of insulating barrier is for being set towards blowout side, to stop that blowing out the insulating gas that goes out of side spray makes the insulation of ejection
The baffling-face of gas baffling commutation.
Solid insulating layer is the solid insulating layer of resistance to ablation that temperature classification is not less than C grades.
Solid insulating layer is the platy layer body for being set towards the blowout side of open type.
The technical scheme of arc-chutes is as follows in the present invention：
Dynamic and static power connection end is relatively set with arc-chutes, including tank body, the tank body body of tank body, power connection end is moved and/or quiet
Open type or the blowout side of open type of the power connection end provided with the internal face that tank body body is blowed to for the insulating gas after arc extinguishing, blow
Go out the solid insulating layer that is interval with of the outlet position of side and the internal face of tank body body, side of the solid insulating layer towards blowout side
Face is for stopping the baffling-face that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate.
Solid insulating layer is the solid insulating layer of resistance to ablation that temperature classification is not less than C grades.
Air side is the opening opened up in dynamic power connection end or quiet power connection end side, and solid insulating layer is is oppositely arranged on
State the platy layer body towards side of opening.
At the bottom side position of the outer peripheral face of the opening in residing power connection end, platy layer body is in dynamic and static power connection end
The both sides of the edge of relative direction stretched out from the two ends of relative power connection end.
The both sides of the edge circumferential in power connection end of baffling-face be upturned and with parallel to the outer peripheral face of power connection end set
Put, the edge of the tilting side of baffling-face higher than to the bottom side portion of the outer peripheral face of power connection end.
The technical scheme of the high-tension switch gear of the present invention is as follows：
High-tension switch gear, including arc-chutes and the operating mechanism that is connected thereon, arc-chutes include tank body, tank body
Dynamic and static power connection end is relatively set with tank body body, power connection end is moved and/or quiet power connection end is provided with for the insulating gas after arc extinguishing
The open type of the internal face of tank body body or the blowout side of open type are blowed to, the outlet position of side and the inwall of tank body body is blown out
Face is interval with solid insulating layer, solid insulating layer towards the side of blowout side be for stopping the insulation gas that blowout side spray goes out
Body and the baffling-face for making the insulating gas baffling of ejection commutate.
Air side is the opening opened up in dynamic power connection end or quiet power connection end side, and solid insulating layer is is oppositely arranged on
State the platy layer body towards side of opening.
The outlet position of side is blown out in the present invention and the internal face of tank body body is interval with solid insulating layer, solid is exhausted
The side of edge layer direction blowout side is for stopping that the insulating gas that blowout side spray goes out makes the insulating gas baffling of ejection commutate
Baffling-face.When in use, after the insulating gas that the spout of driven power connection end is ejected is to the high-voltage arc arc extinguishing in fracture, from
Blowout side spray on dynamic power connection end and/or quiet power connection end goes out, and now not only flow velocity and temperature are still higher for insulating gas, and will
It is mingled with some metallic dusts and ionization analyte, now the mixed gas of high temperature and high speed will be collided in fixed solid insulating barrier
On baffling-face, the baffling-face will the mixed gas powerful to wind-force play a part of containment, to cause to mix by collision effect
The energy for closing gas is released, so as to avoid invading from impact of the mixed gas that goes out of blowout side spray to the internal face of tank body body
Erosion.Meanwhile, solid insulating layer is not only able to strengthen the dielectric strength in arc-chutes, and exhausted in the continuous colliding solid of mixed gas
In the case of the baffling-face of edge layer, even if baffling-face becomes uneven, can also be kept because of the internal face of tank body body it is complete and
So that the electric field at residing position keeps stable, so that avoid power connection end the tank body sheet caused by electric field change occurs in blowout side
The problem of tank skin of body is breakdown.
Further, the opening that air side opens up for the bottom side of the outer peripheral face in dynamic power connection end or quiet power connection end, sheet
The both sides of the edge of the relative direction in dynamic and static power connection end of layer body are stretched out from the two ends of relative power connection end, so above-mentioned
Mixed gas sprays and the collision rift on the baffling-face of solid insulating layer from opening, and mixed gas can roll under the guiding of baffling-face
Stream, so that the flow velocity of mixed gas is gradually reduced from opening to the two ends of power connection end, the metal powder being mingled with mixed gas
It can largely be deposited in dirt and ionization analyte with slowing down for flow velocity below the power connection end residing for opening, and it is residing to be open
Power connection end below again it is relative with the baffling-face of solid insulating layer so that the metallic dust isolated from mixed gas and ionization
Analyte sinks on the baffling-face of solid insulating layer, i.e., between the internal face of the deposit below power connection end and tank body body
Separated by solid insulating layer, even if height increases to situation about being contacted with the outer peripheral face of power connection end so that deposit deposits,
Deposit will not also turn on tank body body and power connection end, therefore further increase the insulating properties of arc-chutes, it is to avoid go out
There is the hidden danger turned in power connection end and tank body body in arc chamber.
Further, the both sides of the edge circumferential in power connection end of baffling-face be upturned and with to the periphery of power connection end
Face be arranged in parallel, the edge of the tilting side of baffling-face higher than to the bottom side portion of the outer peripheral face of power connection end.When in use, from connecing
In the mixed gas that the opening of electric end bottom side sprays partly on baffling-face after upward baffling, by the metal being mingled with mixed gas
Dust and ionization analyte are brushed upwards, and the metallic dust and ionization analyte in mixed gas are from insulating gas in this section
After middle disengaging, the lower section of power connection end will be slipped to along the upturned portion of baffling-face, so that deposit is tried one's best and many is deposited on folding
Between stream interface and power connection end, further increase the insulating properties of arc-chutes, it is to avoid metallic dust and ionization analyte are in folding
Caused by the both sides of the edge deposition of stream interface, the situation of deposit conducting power connection end and tank body body.
Brief description of the drawings
Fig. 1 be the present invention high-tension switch gear embodiment in arc-chutes structural representation.
Embodiment
The embodiment of high-voltage switch device of the present invention：As shown in figure 1, the high-tension switch gear is a kind of high pressure open circuit
Device, including arc-chutes and the operating mechanism that is connected thereon, the structure of operating mechanism belong to prior art, arc-chutes mainly by
Tank body, dynamic power connection end 2 and quiet power connection end 4 are constituted.Tank body is made up of tank body body 3 and solid insulating layer again, the edge of tank body body 3
Left and right directions extends, and there is end cap 9 at the two ends of tank body body 3 by the bolt connection of flange-interface 8 respectively, dynamic power connection end 2 and quiet connects
Electric end 4 left and right in tank body body 3 is relative to be coaxially disposed, and is offered at the bottom side position of the outer peripheral face in quiet power connection end 4
The blowout side 6 of downward opening outlet type.Solid insulating layer is the platy layer body 5 for being oppositely arranged on the lower section of blowout side 6, platy layer
Body 5 is adhesively fixed on by tack coat on the internal face of tank body body 3, and platy layer body 5 is exhausted using the resistance to ablation of C grades of temperature classifications
The polytetrafluoroethylmaterial material of edge material, the upper side of platy layer body 5 is the baffling set towards the blowout side 6 on quiet power connection end 4
Face.
The left and right ends of platy layer body 5 are stretched out from the left and right sides of quiet power connection end 4, the front and rear sides edge of platy layer body 5
It is upturned and in the tile like structure that is coaxially disposed of formed below and quiet power connection end 4 of quiet power connection end 4, so that platy layer body 5
On the front and rear sides edge of baffling-face be upturned and parallel with the outer peripheral face of quiet power connection end 4, and front and rear sides of baffling-face
Edge is higher than the bottom side portion of quiet power connection end 4.
Tank body body 3 is metal can body 3, and the top of tank body body 3 goes out provided with the moved end for connecting dynamic power connection end 2 respectively
Flange is connected with insulation basin respectively on string holes and the static side wire hole for connecting quiet power connection end 4, moved end wire hole and static side wire hole
Son 1.
Platy layer body 5 is in addition to using polytetrafluoroethylene (PTFE) material in the present embodiment, it would however also be possible to employ the high temperature such as ceramic material is exhausted
Edge material, such material will not reduce insulating properties, and platy layer body after high temperature hot gas stream is run into because of the change of temperature
5 can also be that multi-layer material is composited, and improve the purpose is to manufacture electric capacity using dielectric difference of unlike material
The electric field of the quiet periphery of power connection end 4, but the baffling-face of platy layer body 5 must be layer residing for high-temperature insulation material, i.e. baffling-face
Temperature classification is not less than C grades.The insulating gas of the quiet periphery of power connection end 4 can heat in high-temperature electric arc and insulating properties reduction occurs
Situation, and the baffling-face of platy layer body 5 is covered in the outlet side-lower of quiet power connection end 4, so that the hot gas discharged from quiet power connection end 4
Stream will be stopped by the baffling-face of platy layer body 5, it is to avoid the high-temperature insulation gas for being mingled with metallic dust and ionization analyte is straight
Connect and be injected on the internal face of tank body body 3.
When setting the thickness of platy layer body 5, because the dielectric strength of platy layer body 5 depends on its material and thickness, it is
This is ad hoc to determine following steps to calculate the thickness of platy layer body 5：
Calculation one：1st, according to insulating gas under the influence of thermal current, insulating capacity is lost completely for calculation basis；
2nd, by calculating or test method, arc-chutes are known before platy layer body 5 is not installed additional, arc-chutes can be by over the ground
The minimum insulation distance of thunder and lightning and power frequency insulating test；
3rd, according to the minimum insulation distance in step 2, the thickness of the platy layer body 5 needed in tank body body 3 is calculated, but
Because the dielectric strength of solid insulation material is different, so the thickness of the platy layer body 5 calculated according to insulation distance in step 2
Degree can change with the difference of material.
Calculation two：1st, by calculating or test method, know that arc-chutes before insulative ablative-resistant layer is not installed additional, go out
Arc chamber can be by the insulation distance of type approval test；
2nd, according to the minimum insulation distance for not installing insulative ablative-resistant layer in minimum insulation distance, with mode one in step 1 additional,
It is compared, calculates the thickness of the platy layer body 5 needed in breaker.
Therefore pass-through mode two can reduce the diameter of tank body body 3 to greatest extent.
Because all solids insulating materials is different according to production technology, also great changes have taken place for itself dielectric strength, so this
Embodiment only provides the referential data of some conventional solid insulating materials, it is assumed that the dielectric strength of sulfur hexafluoride is 1, according to meter
Calculate and test, the dielectric strength of epoxy resin is 4-6, and the dielectric strength of sulphurated siliastic is 3-4, and the dielectric strength of polytetrafluoro is
2-3, the dielectric strength of porcelain insulating materials is 5-7.
Assemble the arc-chutes when, can by platy layer body 5 can from the flange-interface 8 of the left and right ends of tank body body 3 it is any
It is individual load, and by the internal face of tank body body 3 coat adhesive linkage 7 and by platy layer body 5 be fixed on specified location or
Adhesive linkage 7 is set to enter tank body together in company with platy layer body 5 by coating adhesive linkage 7 on the evagination bottom side of platy layer body 5
Realize that the position of platy layer body 5 is fixed in body 3, after platy layer body 5 is assembled, then by dynamic power connection end 2 and quiet power connection end 4
It is assemblied in tank body body 3, and realizes by end cap 9 and insulated terminal the encapsulation of arc-chutes.
In the above-described embodiments, the baffling-face of platy layer body is covered in below the bottom side portion of quiet power connection end, heavy to obstruct
Product thing turns on the bottom side portion of quiet power connection end and the internal face of tank body body, in other embodiments, is not considering deposit
In the case of alluvial, platy layer body can also be only placed only at the blow-off outlet position on the downside of quiet power connection end, to play anti-mixing
The problem of gas injection calcination is corroded.
In the above-described embodiments, the blowout side on quiet power connection end is the aperture in its bottom side position, in other implementations,
The blowout side can also be opening of notch form for being opened up in the periphery open spaces or quiet power connection end of static contact etc..
The embodiment of arc-chutes in the present invention：The structure of arc-chutes and the structure of arc-chutes in above-mentioned implementation in the present embodiment
It is identical, therefore repeat no more.
The embodiment of tank body in the present invention：The structure of tank body and the structure phase of tank body in above-described embodiment in the present embodiment
Together, therefore repeat no more.
Claims (6)
1. tank body, including for the tank body body for the dynamic and static power connection end loading being oppositely arranged, it is characterised in that set in tank body body
Have for exhausted every the solid being located between the blowout side set on dynamic power connection end and/or quiet power connection end and the internal face of tank body body
Edge layer, the side side of solid insulating layer is for being set towards blowout side, to stop that blowing out the insulating gas that goes out of side spray makes
The baffling-face of the insulating gas baffling commutation of ejection, blowout side is the opening opened up in dynamic power connection end or quiet power connection end side,
Solid insulating layer is the platy layer body towards side for being oppositely arranged on the opening, the both sides circumferential in power connection end of baffling-face
Edge be upturned and with the external application face of power connection end is be arranged in parallel, the edge of the tilting side of baffling-face is higher than docking electricity
The bottom side portion in the external application face at end.
2. tank body according to claim 1, it is characterised in that solid insulating layer is the resistance to burning that temperature classification is not less than C grades
Lose solid insulating layer.
3. be relatively set with dynamic and static power connection end in arc-chutes, including tank body, the tank body body of tank body, dynamic power connection end and/or quiet connect
Open type or the blowout side of open type of the electric end provided with the internal face that tank body body is blowed to for the insulating gas after arc extinguishing, it is special
Levy and be, blow out the outlet position of side and the internal face of tank body body is interval with solid insulating layer, solid insulating layer direction
The baffling-face that the insulating gas for blowing out the side of side for stop blowout side spray to go out makes the insulating gas baffling of ejection commutate,
Blowout side is the opening opened up in dynamic power connection end or quiet power connection end side, and solid insulating layer is to be oppositely arranged on the opening
Towards the platy layer body of side, the both sides of the edge circumferential in power connection end of baffling-face be upturned and with to the outer of power connection end
Be arranged in parallel with face, the edge of the tilting side of baffling-face higher than to the bottom side portion in the external application face of power connection end.
4. arc-chutes according to claim 3, it is characterised in that solid insulating layer is that temperature classification is not less than C grades resistance to
Ablation solid insulating layer.
5. arc-chutes according to claim 3, it is characterised in that the opening is in the bottom of the outer peripheral face of residing power connection end
At side position, the both sides of the edge of the relative direction in dynamic and static power connection end of platy layer body are stretched from the two ends of relative power connection end
Go out.
6. high-tension switch gear, including arc-chutes and the operating mechanism that is connected thereon, arc-chutes include tank body, the tank of tank body
Dynamic and static power connection end is relatively set with body body, dynamic power connection end and/or quiet power connection end are provided with and blown for the insulating gas after arc extinguishing
Open type or the blowout side of open type to the internal face of tank body body, it is characterised in that the outlet position of blowout side and tank body
The internal face of body is interval with solid insulating layer, solid insulating layer towards the side of blowout side be for stopping blowout side spray
The insulating gas gone out and the baffling-face for making the insulating gas baffling of ejection commutate, blowout side are in dynamic power connection end or quiet power connection end
The opening that side is opened up, solid insulating layer is the platy layer body towards side for being oppositely arranged on the opening, and baffling-face is in
The circumferential both sides of the edge of power connection end be upturned and with the external application face of power connection end is be arranged in parallel, the tilting side of baffling-face
Edge higher than to the bottom side portion in the external application face of power connection end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602091.6A CN104362035B (en) | 2014-10-31 | 2014-10-31 | A kind of high-tension switch gear and its arc-chutes, tank body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602091.6A CN104362035B (en) | 2014-10-31 | 2014-10-31 | A kind of high-tension switch gear and its arc-chutes, tank body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104362035A CN104362035A (en) | 2015-02-18 |
| CN104362035B true CN104362035B (en) | 2017-10-10 |
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| CN201410602091.6A Expired - Fee Related CN104362035B (en) | 2014-10-31 | 2014-10-31 | A kind of high-tension switch gear and its arc-chutes, tank body |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204242933U (en) * | 2014-10-31 | 2015-04-01 | 平高集团有限公司 | High voltage switching device and arc control device, tank body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US6417473B1 (en) * | 2000-07-14 | 2002-07-09 | Eaton Corporation | Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same |
| EP1187157B1 (en) * | 2000-09-04 | 2006-11-02 | Abb Research Ltd. | Disconnecting switch |
| EP1829077B2 (en) * | 2004-12-24 | 2011-03-23 | ABB Technology AG | Generator switch having an improved switching capacity |
| US8039771B2 (en) * | 2008-08-11 | 2011-10-18 | Eaton Corporation | Vacuum envelope including self-aligning end shield, vacuum interrupter, vacuum circuit interrupter and method including the same |
| FR2946181B1 (en) * | 2009-05-26 | 2011-07-01 | Areva T & D Sa | HIGH VOLTAGE CIRCUIT BREAKER WITH IMPROVED GAS EXHAUST. |
| JP6050994B2 (en) * | 2012-09-14 | 2016-12-21 | 株式会社日立製作所 | Electrical contacts, electrical contact manufacturing methods, electrodes, vacuum valves, vacuum switchgear |
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| CN204242933U (en) * | 2014-10-31 | 2015-04-01 | 平高集团有限公司 | High voltage switching device and arc control device, tank body |
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