CN1201358C - Air-blowing type gas breaker - Google Patents

Air-blowing type gas breaker Download PDF

Info

Publication number
CN1201358C
CN1201358C CNB021518076A CN02151807A CN1201358C CN 1201358 C CN1201358 C CN 1201358C CN B021518076 A CNB021518076 A CN B021518076A CN 02151807 A CN02151807 A CN 02151807A CN 1201358 C CN1201358 C CN 1201358C
Authority
CN
China
Prior art keywords
circuit breaker
type gas
arc contact
gas circuit
upstream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB021518076A
Other languages
Chinese (zh)
Other versions
CN1438665A (en
Inventor
广瀬诚
河本英雄
石黑哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of CN1438665A publication Critical patent/CN1438665A/en
Application granted granted Critical
Publication of CN1201358C publication Critical patent/CN1201358C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • 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

Landscapes

  • Circuit Breakers (AREA)

Abstract

A puffer type gas circuit breaker wherein an insulated nozzle made of heat proof resin and a movable arc contact are mounted on a puffer cylinder to perform an open/close operation of the contact. The insulated nozzle is divided into three areas of a downstream area, an area in the vicinity of the throat and an upstream area. The downstream area and the upstream area are made of heat proof resin alone, while the area in the vicinity of the throat is formed of heat proof resin mixed with an inorganic material such as boron nitride. A movable arc contact cover made of heat proof resin having a downstream area and an upstream area is provided between the insulated nozzle and the movable arc contact, and only the downstream area of the contact cover is made of heat proof resin mixed with inorganic material.

Description

Puffer type gas circuit breaker
Technical field
Present invention relates in general to a kind of circuit breaker, relate in particular to a kind of Puffer type gas circuit breaker (puffertype gas circuit breaker).This Puffer type gas circuit breaker has the insulation nozzle that is formed and be used to guide arc extinguishing gases by a heat stable resin, thereby is applicable to the circuit breaker of making electricity.
Background technology
Puffer type gas circuit breaker uses sulphur hexafluoride (SF usually 6) as arc extinguishing gases.When the process that disconnects from closure state, this gas is compressed and is ejected between contact, takes this, and the electric arc that appears between contact is extinguished, thereby guarantees that big electric current can be cut off.
The common structure of above-mentioned Puffer type gas circuit breaker as shown in Figure 4 and Figure 5.
Figure 4 shows that circuit-breaker is in closure state, Figure 5 shows that circuit-breaker is in the process of opening.
When closure state shown in Figure 4, fixed arc contact 1 contacts and engages with movable arc contact 3, thereby forms current path between them.
Movable arc contact 3 carries insulation nozzle 2 to be contained on the air blowing cylinder body 4 with an arc extinguishing gases, and is locked in the there.One insulating bar 6 links to each other with air blowing cylinder body 4.Correspondingly, one operating mechanism (not shown) drives insulating bar 6 and moves with predetermined direction (being transverse direction among the figure), thereby, movable arc contact 3 with insulation nozzle 2 also with air blowing cylinder body 4 in the transverse direction feeding, thereby carry out closure and opening operation.
In this case, an air blowing piston 5 matches with it in air blowing cylinder body 4, and is locked in a stationary fixing and partly goes up (not shown), thereby forms an air blowing chamber 7 that is used to compress arc extinguishing gases in air blowing cylinder body 4.
As a formant of Puffer type gas circuit breaker, the part that constitutes the arc extinguishing chamber is contained in the container (not drawing among the figure) of a sealing.After they are put into Puffer type gas circuit breaker, charge into such as the same arc extinguishing gases of sulphur hexafluoride to closed container, thereby form a complete Puffer type gas circuit breaker product.
When disconnecting, described Puffer type gas circuit breaker carries out following operation: operating mechanism drives air blowing cylinder body 4 by insulating bar 6 to right-hand lay, and thus, state shown in Figure 4 just switches to off-state shown in Figure 5.
Like this, the movable arc contact 3 under conducting state is thrown off with fixed arc contact 1, so that produces electric arc A between them.In the case, the arc extinguishing gases in the air blowing chamber 7 is compressed and is insulated nozzle 2 importings and blows to electric arc A, so that extinguish arcs A, consequently: electric arc A extinguishes fast, and electric current is cut off.
Insulation nozzle 2 is made by the heat stable resin as tetrafluoroethylene resin usually.When insulation nozzle 2 was exposed to electric arc A, the heat that electric arc A produces entered in the nozzle 2 and is absorbed.So, pore or carbonization appear in the material of insulation nozzle 2, and consequently: worsening appears in the electric leakage insulation property of insulation nozzle 2 and electrode insulation performance.
In order to address this problem, existing suggestion is: the powdery inorganic material is mixed in the heat stable resin of making insulation nozzle, enters in the insulation nozzle 2 so that can prevent the heat that electric arc A produces.Like this, anti-arc property is improved.Here said inorganic material mixing also is referred to as Inorganic Fillers Filled.
According to publication number is 49 (1974)-17657 Japanese patent application, and it is recommended with aluminium oxide (Al 2O 3) mix as inorganic material, and be 48 (1973)-38216 Japanese patent application according to publication number, it is recommended with calcirm-fluoride (CaF 2), magnesium fluoride (MgF 2), vulcanized lead (SbS), barium sulfate (BaSO 4) and boron nitride (BN) etc. mix as inorganic material.
Except in spreading all over insulation nozzle, mixing the inorganic material, various other suggesting methods relevant with these inorganic material mixed forms are also arranged with finite concentration.For example, publication number a kind of inorganic material that has been 5 (1993)-94743 Japanese Patent Application Publication is when mixing with it, apart from mixing with internal diameter one segment distance on the direction of insulation nozzle axis normal.
Publication number is that the situation of 5 (1993)-74287 Japanese Patent Application Publication is: the kind of the inorganic material that is used to mix and concentration along with described axis normal direction on distance and change step by step.Publication number is that the situation of 7 (1995)-296689 Japanese Patent Application Publication is: on the insulation nozzle axis direction, be distributed with the different zone of a plurality of inorganic material melting concns, and in a plurality of zones of described interregional concentration continually varying.
Above-mentioned prior art is not noticed the consumption that reduces inorganic material, thereby produces the problem that the whole cost of Puffer type gas circuit breaker is risen.
In general, contain expensive more many just like the heat stable resin of the inorganic material of BN than independent heat stable resin.Correspondingly, because the mixing of big consumption, the production cost of insulation nozzle will increase.
In the insulation nozzle of prior art, corresponding to the distance on the insulation nozzle axis direction, all parts that are from upstream in the scope of downstream on air blowing cylinder body one side are all mixed inorganic material.Because use inorganic material in a large number, production cost improves.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of Puffer type gas circuit breaker, its feature is: significantly reduce cost by mix inorganic material in the insulation nozzle of being made by heat stable resin and guarantee good arc resistance energy.
The present invention realizes above-mentioned purpose by following scheme.One Puffer type gas circuit breaker, it has one to be positioned at movable arc contact arc extinguishing gases conveying insulation nozzle on every side, is characterized in:
Described insulation nozzle comprises the catchment, throat's near zone and upstream, and wherein said insulation nozzle throat near zone contains organic and/or inorganic materials and described upstream does not contain described inorganic material;
One movable arc contact lid is contained between described movable arc contact and the described nozzle; To center on described movable arc contact;
Described movable arc contact lid has catchment and upstream, and described downstream area is to be made by the heat stable resin that contains organic and/or inorganic materials, and described upstream region is to be made by the heat stable resin that does not contain described inorganic material.
Upstream and downstream part at the insulation nozzle except that described throat near zone can be made by the heat stable resin that does not contain inorganic material.Also can select: have only throat's upstream region of described insulation nozzle to make by the heat stable resin that does not contain inorganic material.
Description of drawings
Elaborate and the accompanying drawing of the preferred embodiment of the present invention in conjunction with following, can understand the present invention better, yet this only is for the ease of explaining and understand, but can not be confined to them.
In following accompanying drawing,
Fig. 1 is the cross section zoomed-in view of an embodiment major part of representative Puffer type gas circuit breaker of the present invention;
Fig. 2 is the cross sectional view of the amplification of another embodiment major part of representative Puffer type gas circuit breaker of the present invention;
Fig. 3 is the cross-sectional view of Puffer type gas circuit breaker preferred embodiment of the present invention;
Fig. 4 is the cross sectional view of example major part when closure state of prior art Puffer type gas circuit breaker;
Fig. 5 is the cross sectional view of example major part when opening of prior art Puffer type gas circuit breaker;
Fig. 6 is for showing the further amplification cross sectional view of a Puffer type gas circuit breaker that contains organic and/or inorganic materials part detailed structure.
Embodiment
The present invention will be described in detail below in conjunction with accompanying drawing and concrete preferred embodiment.Relate to many concrete details in the following description, being intended to be convenient to has one fully comprehensively to understand to the present invention.Certainly, also obviously, for knowing those skilled in the art, do not have these concrete details explanations, the present invention also can realize.On the other hand, for the present invention is described highlightedly, known structure does not just have concrete explicit declaration.
Describe below in conjunction with the preferred embodiment of accompanying drawing Puffer type gas circuit breaker of the present invention.Fig. 3 has shown the overall structure of Puffer type gas circuit breaker of the present invention.
As shown in Figure 3, an inside metal shell 11 filling arc extinguishing gases is made into and is roughly cylindrical shape.One be contained in the metal shell 11 the circuit-breaker part by supporting member 12 supportings of an insulation and with the metal shell electric insulation.
Metal shell 11 is drawn by the center conductor 13 of sleeve pipe or gas insulated bus in the two ends of the circuit breaker of supporting part like this.In Fig. 3, be connected with bonding conductor 14 at the right-hand end of dielectric support 12.Center wire 13 is electrically connected with bonding conductor 14.On the other hand, one of circuit breaker part fixedly main contact 15 and fixed arc contact 1 are fixed on bonding conductor 14.Simultaneously, loop circuit capable open circuit the fixedly main contact 15 of part and the protective cover 17 of fixed arc contact 1 by screw or analog, are contained on the flange 14a of bonding conductor 14.
A compression set of forming by air blowing piston 5 and air blowing cylinder body 4, for example, with air blowing cylinder body 4 as displaceable element.With a movable main contact 20 of fixing main contact 15 contacts, have one all to be connected with air blowing cylinder body 4 with the insulation nozzle in the hole of fixed arc contact 1 engagement and a movable arc contact 3 that in insulation nozzle, contacts with fixed arc contact 1.Described compression set and each contact be the built-up circuit breaker portion altogether.
Be compressed in the gas in the air blowing chamber 7 of compression set by the central shaft that drives air blowing cylinder body 4 via an insulating bar by unillustrated operating means, disconnect main contact 15 and 20, and disconnect arcing contact 1 and 3 subsequently, thereby realize open-circuit operation to circuit.The electric arc that disconnects arc contact 1 and produced in 3 o'clock extinguishes by the arc extinguishing gases of insulation nozzle 2 guidings of blow pressure compression apparatus.
Figure 1 shows that a specific embodiment of the present invention.Mark 2a represents the downstream area of insulation nozzle 2 among the figure, and 2b represents throat's adjacent domain, and 2c represents upstream region, the contacts cover in 9 expression downstreams, and 9a represents the downstream area of movable arc contact lid, and 9b represents upstream region.
In the embodiment in figure 1, the other parts that comprise insulation nozzle 2 are the same with the relevant portion of the prior art Puffer type gas circuit breaker that was described with reference to figure 1 and 4.Fig. 1 has only shown the moving part of the circuit breaker of Puffer type gas circuit breaker, furtherly, has only shown the first half of moving part.
As mentioned above, insulation nozzle 2 embodiment illustrated in fig. 1 is made up of downstream area 2a, the near zone 2b of throat, insulation nozzle upstream region 2c and movable arc contact 3.In first position, described downstream area 2a is only made by the tetrafluoroethylene resin that does not have inorganic material.The near zone 2b of throat is by making as the tetrafluoroethylene resin of inorganic material with the boron nitride that contains 1%～20% percent by volume, and upstream region 2c is then the same with downstream area 2a, is only to be made by tetrafluoroethylene resin.
Be provided with movable arc contact lid 9 in the embodiment in figure 1, so that around movable arc contact 3.This movable arc contact lid 9 can be divided into downstream area 9a and upstream region 9b.Downstream area 9a is by making as the tetrafluoroethylene resin of inorganic material with the boron nitride that contains 1%～20% percent by volume, and upstream region 9b is only made by the tetrafluoroethylene resin that does not have inorganic material.
Operational circumstances to present embodiment when cutting off electric current is introduced below:
In the present embodiment, when cutting off electric current, similar with the situation of the prior art of describing referring to Fig. 3, Fig. 4, electric arc occurs between fixed arc contact 1 (not drawing among the figure) and movable arc contact 3, the energy that it sends out can affact on the inner surface of insulation nozzle 2 and on the surfaces externally and internally of movable arc contact lid 9.
In the case, the part that is exposed under the highest level energy is the inner surface 2d of upstream region 2c, and the internal diameter of insulation nozzle 2 is less herein, and relative with the distance of electric arc shorter.In the present embodiment, the major part that enters energy is reflected away by contained boron nitride in the near zone 2b of throat, because insulation nozzle 2 inboards are protected, thereby insulation nozzle 2 is protected and avoids causing possible damage because of the energy that enters.
Movable arc contact lid 9 is set and contains boron nitride at downstream area 9a; thereby the major part that enters energy is reflected; insulation nozzle 2 obtains protection, and consequently insulation nozzle 2 is further protected and avoided causing possible damage because of the energy that enters.
In the embodiment in figure 1, insulation nozzle 2 part that contains boron nitride can be limited in the near zone 2b of throat.This can reduce the consumption of its boron nitride to whole insulation nozzle 2, and then can make insulation nozzle 2 with lower production cost.
Present embodiment needs boron nitride to be contained in the downstream area 9a of movable arc contact lid 9.The volume than insulation nozzle 2 is little significantly for the volume of this movable arc contact lid 9, and its part limit that contains boron nitride is extremely at downstream area 9a.
Owing to be provided with above-mentioned movable arc contact lid 9 with respect to insulation nozzle 2, reduced the quantity of the arc energy that enters, thereby near the regional 2b insulation nozzle 2 throats, the content of its boron nitride can reduce.With regard to the entire circuit circuit breaker, this consumption that shows the boron nitride that it is used is reduced.
Therefore; under the situation of the consumption that reduces inorganic material; the insulation nozzle that present embodiment can protect heat stable resin to make is fully avoided issuable damage, and consequently: the Puffer type gas circuit breaker with good arc resistance energy can be made with lower cost.
Illustrated referring to 2 pairs of an alternative embodiment of the invention of accompanying drawing.
In one embodiment of the present of invention as shown in Figure 2, insulation nozzle 2 is divided into two zones.One is upstream region 2e, and another is downstream area 2f.Other structure is identical with structure embodiment illustrated in fig. 1.
Downstream area 2f is made by the tetrafluoroethylene resin of the boron nitride that contains 1%～20% percent by volume, and upstream region 2e is only made by the tetrafluoroethylene resin that does not contain inorganic material.
Fig. 2 is the example of the variation of Fig. 1 embodiment.On the one hand, the simpler structure of this insulation nozzle 2 can correspondingly reduce cost, and on the other hand, the zone of containing boron nitride in insulation nozzle 2 is enlarged, and correspondingly, this can not reduce cost again.
Yet based on electric and configuration variance hot fluid dynamics aspect, the size of the downstream area 2f of insulation nozzle 2 can reduce.This means the minimizing of the consumption of used boron nitride.
In addition, owing to, reduced the arc energy quantity that enters insulation nozzle 2, and then reduced at the content of the boron nitride of downstream area 2f by movable arc contact lid 9 is set.This also means the minimizing of the consumption that boron nitride is total, so cost is minimized.
Introduced according to a particular embodiment of the invention above.Yet, be construed as the present invention and be not limited to embodiment above-mentioned.In addition, other material outside the boron nitride also can be used as inorganic material.By using aluminium oxide above-mentioned, calcirm-fluoride, magnesium fluoride and vulcanized lead or barium sulphide, also can obtain same effect.
Described above is to be applicable to heat stable resin.In other words, use fluororesin (fluorine resin) rather than above-mentioned tetrafluoroethylene resin and silicone, also can obtain identical effect.
According to the present invention, insulation nozzle is divided into a plurality of zones on axis direction.Be mixed with inorganic material in some zones therein, and do not have in other zone, the mixed proportion in each zone is different.In addition, also be provided with a movable arc contact lid, be mixed with inorganic material in its some zones, and do not have in other zone, the mixed proportion in each zone is different.Can be reduced to floor level to what send because of electric arc that energy causes to may damaging of insulation nozzle like this, reduce the deterioration degree of throat's near zone electric leakage insulation property, and then cut down the use amount of inorganic material on the whole.
Describe below in conjunction with 6 pairs of specific embodiments relevant of the present invention of accompanying drawing with inorganic material.
Movable arc contact 3 curves " L " shape, and one radius of curvature is arranged is the arc chord angle of R one side and the position relative with downstream contacts cover 9 in the downstream for it.Downstream area 9a downstream contacts cover 9 and that contain organic and/or inorganic materials extends to a boundary line A, and this boundary line A is corresponding with the end points of arc chord angle one side in the upstream of movable arc contact 3.Because so downstream area 9a who contains organic and/or inorganic materials arranged, the electric arc of generation is that upstream one side of the movable arc contact 3 outside the arc chord angle of R no longer produces in the movable radius of curvature of arc contact 3 when fixed arc contact 1 separate with movable arc contact 3.Therefore, have only the zone that produces electric arc on the movable arc contact to need the downstream area 9a that contains organic and/or inorganic materials of downstream contacts cover 9 to hide, consequently: the downstream area 9a that contains organic and/or inorganic materials on the downstream contacts cover 9 can accomplish needed minimum dimension.
On the other hand, the throat's near zone that contains organic and/or inorganic materials upstream extends to a boundary line B, and this boundary line B is positioned at flat site, and this flat site is continuously to curved section that connects the thick part 2d of nozzle and upstream region 2c.As shown in Figure 6, boundary line B departs from boundary line A and close downstream.Because the arc energy that produces when fixed arc contact 1 separates with movable arc contact 3 is stopped by the downstream area 9a of downstream contacts cover 9, so, contain organic and/or inorganic materials the near zone 2b of throat can from boundary line A downward bias from the position and stop at flat site, this flat site is continuously to curved section that connects the thick part 2d of nozzle and upstream region 2c.Therefore, the size that can realize being used in the necessary minimum of the near zone 2b of throat that contains organic and/or inorganic materials solves the electric arc problem that produces.
Though provided accompanying drawing and explanation according to representational embodiment, but for understanding those skilled in the art, should understand like this: under the situation that does not break away from design of the present invention and scope, also can on the basis of previous embodiment, carry out various changes, delete and increase.Therefore, the present invention be should not be construed as be confined to top said specific embodiment, and be interpreted as: with the basis that is characterized as that proposes in the claim of the present invention, and comprise and with it in the suitable scope, the present invention includes the various embodiment that can realize at it.
Be noted that: previous embodiment is to obtain corresponding effect by contain required minimum inorganic material in element, and still, the present invention should not be limited to previous embodiment.For example, though when the element that contains organic and/or inorganic materials when the upstream region 2c direction of the upstream region 9b of movable arc contact and insulation nozzle 2 is extended, also can obtain similar effects.
In a word, can realize abundant insulation property, the Puffer type gas circuit breaker that cost is low easily according to the present invention.

Claims (6)

1. Puffer type gas circuit breaker, it has an arc extinguishing gases of being made by heat stable resin and carries insulation nozzle around movable arc contact,
It is characterized in that described insulation nozzle comprises the catchment, throat's near zone and upstream, wherein said insulation nozzle throat near zone contains organic and/or inorganic materials and described upstream does not contain described inorganic material;
One movable arc contact lid is contained between described movable arc contact and the described nozzle, to center on described movable arc contact;
Described movable arc contact lid has catchment and upstream, and described downstream area is to be made by the heat stable resin that contains organic and/or inorganic materials, and described upstream region is to be made by the heat stable resin that does not contain described inorganic material.
2. according to the described Puffer type gas circuit breaker of claim 1, it is characterized in that: upstream region and downstream area by described insulation nozzle do not contain described inorganic material.
3. according to the described Puffer type gas circuit breaker of claim 1, it is characterized in that: described heat stable resin comprises tetrafluoroethene.
4. according to the described Puffer type gas circuit breaker of claim 1, it is characterized in that: the described zone of the described described insulation nozzle of being made by the heat stable resin that contains organic and/or inorganic materials is formed with a crooked shape part, and extend from a part of the upstream side that is positioned at described sweep in the described zone that contains organic and/or inorganic materials.
5. according to the described Puffer type gas circuit breaker of claim 1, its spy just: described throat near zone is formed on the downstream in a zone of described movable arc contact.
6. according to the described Puffer type gas circuit breaker of claim 1, it is characterized in that: the throat's near zone that contains organic and/or inorganic materials upstream extends to a boundary line B, this boundary line B is positioned at flat site, this flat site is continuously to the curved section and the upstream region that connect the thick part of nozzle, and described boundary line B departs from boundary line A and close downstream.
CNB021518076A 2001-11-21 2002-11-21 Air-blowing type gas breaker Expired - Fee Related CN1201358C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP356496/2001 2001-11-21
JP2001356496 2001-11-21

Publications (2)

Publication Number Publication Date
CN1438665A CN1438665A (en) 2003-08-27
CN1201358C true CN1201358C (en) 2005-05-11

Family

ID=19168006

Family Applications (2)

Application Number Title Priority Date Filing Date
CN02107566A Withdrawn CN1420515A (en) 2001-11-21 2002-03-15 Buffering gas circuit breaker
CNB021518076A Expired - Fee Related CN1201358C (en) 2001-11-21 2002-11-21 Air-blowing type gas breaker

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN02107566A Withdrawn CN1420515A (en) 2001-11-21 2002-03-15 Buffering gas circuit breaker

Country Status (3)

Country Link
KR (1) KR100910839B1 (en)
CN (2) CN1420515A (en)
TW (1) TW536722B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272417A (en) * 2012-03-06 2015-01-07 Abb技术有限公司 Arc-jump circuit breaker and method of circuit breaking

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006164673A (en) 2004-12-06 2006-06-22 Hitachi Ltd Current breaking method of puffer type gas-blast circuit breaker and puffer type gas-blast circuit breaker using it
DE102006034742A1 (en) * 2006-07-24 2008-01-31 Siemens Ag Insulating nozzle comprising a first material and a second material
JP5286569B2 (en) * 2009-03-27 2013-09-11 株式会社日立製作所 Puffer type gas circuit breaker
TW201442051A (en) 2013-03-08 2014-11-01 Hitachi Ltd Gas blast circuit breaker
KR101723093B1 (en) * 2014-12-24 2017-04-04 주식회사 효성 Gas circuit breaker for gas insulated switchgear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57168145A (en) * 1981-04-09 1982-10-16 Toshiba Corp Defect inspecting device
JPS5933724A (en) * 1982-08-19 1984-02-23 三菱電機株式会社 Gas breaker
JP2864794B2 (en) * 1991-07-04 1999-03-08 三菱電機株式会社 Semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104272417A (en) * 2012-03-06 2015-01-07 Abb技术有限公司 Arc-jump circuit breaker and method of circuit breaking
CN104272417B (en) * 2012-03-06 2017-03-15 Abb 技术有限公司 The method that arc flip-flop circuit chopper and circuit disconnect

Also Published As

Publication number Publication date
TW536722B (en) 2003-06-11
CN1438665A (en) 2003-08-27
CN1420515A (en) 2003-05-28
KR20030041764A (en) 2003-05-27
KR100910839B1 (en) 2009-08-06

Similar Documents

Publication Publication Date Title
US7642480B2 (en) Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube
CN1072833C (en) Gas circuit breaker
US20080314873A1 (en) Switching chamber for a high-voltage switch having a heating volume for holding quenching gas produced by switching arcs
CN1201358C (en) Air-blowing type gas breaker
US9230759B2 (en) Gas circuit breaker
CN101048837A (en) Switching chamber and heavy-duty circuit breaker
Laghari et al. Surface flashover of spacers in compressed gas insulated systems
EP0268156A1 (en) Insulated nozzle for use in an interrupter
CN1707716A (en) Electric circuit breaker
CN1016477B (en) High-tension breaker with pressurized dielectric gas arc-extinguishing
BR112019020565A2 (en) double nozzle switch, and, method for switching direct and / or alternating current in high voltage technology
KR920003356A (en) Gas Insulated Circuit Breaker of PUFFER Type
US8698033B2 (en) Interrupting chamber with a field distributor cylinder for high-voltage or medium-voltage circuit breakers
CN201112265Y (en) Cyclone type nozzle high voltage gas blowing breaker with groove
JP4634259B2 (en) Puffer type gas circuit breaker
JP2000067716A (en) Gas-blast circuit breaker
CN1023924C (en) Series arc type high-tension breaker
CN106571263A (en) Novel micron-order diamond particle fluid arc-extinguishing medium-based alternating-current circuit breaker
US11322322B2 (en) Insulating molded body and gas circuit breaker
CN1667895A (en) Gas insulation switch device
CN101582346B (en) Insulator type gas circuit-breaker
EP3503151B1 (en) Circuit breaker and method of performing a current breaking operation
JP6189008B1 (en) Insulating material molded body for arc extinguishing and gas circuit breaker provided with the same
GB2336252A (en) Electric cable termination with granular insulation
CN115331989B (en) Triple transmission device and direct-current high-speed switch

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050511

Termination date: 20201121