US3641295A - Polyphase circuit interrupter of the fluid blast puffer-type - Google Patents

Polyphase circuit interrupter of the fluid blast puffer-type Download PDF

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Publication number
US3641295A
US3641295A US51313A US3641295DA US3641295A US 3641295 A US3641295 A US 3641295A US 51313 A US51313 A US 51313A US 3641295D A US3641295D A US 3641295DA US 3641295 A US3641295 A US 3641295A
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United States
Prior art keywords
arc
blast
puffer
circuit interrupter
chamber
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Expired - Lifetime
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US51313A
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English (en)
Inventor
Jean-Yves Ferton
Jacques Hennebert
Francois Strippoli
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Merlin Gerin SA
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Merlin Gerin SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers
    • 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
    • H01H33/56—Gas reservoirs
    • 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
    • H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
    • H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
    • H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas

Definitions

  • the present invention relates to a polyphase circuit interrupter with pumped gas blast having a plurality of pole units arranged alongside of each other, each pole unit comprising an elongated enclosure containing an isolation and arc-extinguishing fluid and subdivided into at least two compartments, a blast orifice providing communication between the said two compartments located upstream and downstream of the said orifice with respect to the direction of flow of the blasting fluid.
  • Circuit interrupters of this type which employ as quenching fluid air or a special gas, such as sulfur hexafluoride (SI- contained in an enclosure common to the different poles of the circuit interrupter.
  • a special gas such as sulfur hexafluoride (SI- contained in an enclosure common to the different poles of the circuit interrupter.
  • SI- sulfur hexafluoride
  • a piston cooperates with a cylinder in such a manner as to produce, by displacement of the piston or of the cylinder, a flow of gas in a nozzle or other orifice which provides communication between the inside of the cylinder and another space. This flow, upon the opening of the contacts, causes a blasting of the are through the nozzle and this are is then rapidly quenched.
  • the object of the present invention is to increase the available downstream volume for a given overall size of the circuit interrupter so as to reinforce the arc blasting effect.
  • the circuit interrupter in accordance with the invention is characterized by the fact that it comprises an intercommunication system which causes all of said compartments located on the same side, upstream or downstream, of the said blast orifices of the different poles to communicate with each other so as to increase the flow of the blast fluid.
  • the downstream compartments of the different poles communicate with each other so as to permit a transfer of gas from one pole towards another upon a lack of equilibrium of the pressures. If the defect to be eliminated affects only one of the phases, the volume available for the expansion of the gases of the active pole which cuts the defect is substantially increased as compared with the conventional apparatus by the use of the cold volumes of the other poles which are practically inactive.
  • the apparatus interrupts a large current on the three phases, there is also advantageous, as compared with the known apparatus, the fact that at a given moment the instantaneous values of the current of the different phases and the instantaneous pressures resulting therefrom differ from one phase to the other. Furthermore, when the first phase has been interrupted, the second and third phases which are then interrupted benefit from the downstream volume of the first phase which is then relatively cold," since the first phase has been interrupted within a very short period of time.
  • the invention can also be applied to a polyphase circuit interrupter with a pressure reduction. ln this case the upstream compartments are connected together.
  • the communicating conduits between the poles preferably have a substantial cross section which limits the losses in head. and they can connect the compartments in question of the poles at a given place in front of or behind the poles, below or directly between the poles, etc.
  • the puffer gas blast mechanism can be any desiredfor instance one with movable pumping piston and stationary cylinder, the piston being arranged above or below the nozzle; one with stationary piston and movable cylinder, at bellowstype mechanism, etc.
  • the nozzle may be movable or stationary and in certain cases may assume the shape of a simple orifice or be formed of the hollow moving contact itself.
  • Another object of the present invention is to permit the production of a circuit interrupter of the type indicated which enjoys complete tightness.
  • the polyphase circuit interrupter comprises in accordance with the invention a housing of synthetic material which is common to different poles and which defines and surrounds the said elongated enclosures of the poles and within which the said intercommunication system for the compartments of the different poles extends.
  • the said housing may consist of a monoblock molding with internal subdivisions providing recesses which receive the different poles and the said system of intercommunication between the compartments of different poles.
  • Still another object of the present invention is to provide a circuit interrupter with housing of molded plastic which is of strong structure capable of withstanding substantial internal pressures.
  • transverse webs bracing the housing of the circuit interrupter extend between the openings or recesses of the different poles.
  • the communicating conduits between the different compartments may be included in or formed of discontinuities in these webs. Molding processes permit the manufacture of parts of elaborate shape and the molding of the housing or body of the circuit interrupter in accordance with the invention is effected without difficulty.
  • the circuit interrupter in accordance with the invention comprises blast compartments of variable volume of each pole which are formed of attached parts fastened to the inside of the said plastic housing and compartments common to the different enclosures of the poles or in direct communication between them confined by the said housing.
  • FIG. 5 is an elevation, partially in axial section, ofa circuit interrupter in accordance with a variant embodiment of the invention.
  • FIG. 6 is a view similar to that of FIG. 2 illustrating another variant of the invention.
  • the housing 10 has two protuberances per pole constituting insulated passage housings 18, 20 (in the case of chamber 12), 22, 24 (in the case of chamber 14) and 26, 28 (in the case of chamber 16).
  • the poles which are housed respectively in the enclosures 12, 14 and 16 are all identical and therefore only one of them, visible in FIGS. 2 and 3, will be described in detail below.
  • Each passage 18 and 20 comprises a cylindrical conductor, such as 30 and 32, terminating on the one side in a fastening area of a plug-in terminal 34 and 36 or some other contact member (not shown in FIG. 3).
  • the current lead or outlet conductor 30 bears an intermediate current pickup contact 38, represented schematically generally as of the sliding or rubbing contact type which cooperates with a moving cylindrical contact rod 40.
  • the intermediate contact 38 is advantageously fastened to the end of the conductor 30 via a screw 42 and washer 43 for a purpose which will be explained below.
  • the cover 54 hermetically closes off the housing 10 and the closed spaces or enclosures l2, l4 and 16 contain a compressed gas of high cutout and isolating power, such as sulfur hexafluoride (SF).
  • SF sulfur hexafluoride
  • circuit breaker in accordance with the invention operates in the following manner:
  • the pressure produced in the compartment 55 on the one hand by the flow of the blast gas through the nozzle 50 and on the other hand by the heating of the gases under the action of the arc exceeds that prevailing in the compartments 55 of the adjacent poles the heating of which has been less.
  • a transfer of fluid towards the latter compartments is effected through the passages 70 in the direction indicated by arrows in FIGS. 3 and 4.
  • the blowing in the nozzle 50 of the pole 12 is reinforced thereby and the extinguishing ofthe arc is accelerated.
  • the conductors 30, 32, the connectors 44 and the different cores are placed in a mold. After pouring and polymerization, one then obtains the housing as shown in FIG. 1.
  • the fixed contacts 46 are then screwed into the connections 44, whereupon the moving units 40, 48, 50 are introduced into their chambers.
  • the partition 47 and the intermediate contacts 38 and the cover 54 are then put in position and the enclosure is filled with a compressed gas in suitable fashion. The assembling as well as subsequent disassembling are therefore particularly easy and do not require any special machining.
  • FIG. 5 shows a three-pole circuit interrupter in accordance with a variant of the invention having separate poles 72, 74 and 76 the tubular enclosures of which formed of insulating material are attached to a common support 78.
  • the intercommunication conduits of the downstream compartments of the different poles 72, 74 and 76 can be incorporated or formed by the common support 78.
  • the operation of the circuit interrupter is not modified by this subdivision of the housing into independent elements.
  • the internal structure of the poles 72, 74 and 76 only one of which, 72, will be described subsequently, since the others, 74 and 76, are identical, differs from that illustrated in FIG.
  • the pole 72 comprises a tubular insulating envelope 80 closed at one of its ends and connected hermetically at its other end to the reservoir 78, possibly made of metal, which forms a common support structure for the different poles.
  • the reservoir 78 and the envelopes or enclosures 72, 74 and 76 communicate with each other and contain a compressed gas, such as sulfur hexafluoride (SF).
  • SF sulfur hexafluoride
  • the blind end of the enclosure 72 bears a coaxial fixed contact 81 connected to a passage conductor or any other electrical connecting area.
  • the stationary contact 81 cooperates with a hollow moving contact 82 which is capable of sliding in the enclosure 72 under the action of a control rod which forms an extension of it and is rigidly connected to a system of levers 84 for converting a rotary movement of a shaft 86 into a linear reciprocating movement of the moving contact 82.
  • the control shaft 86 which is common to the three poles 72, 74 and 76 extends within the reservoir 78 so as to limit the hermetic passages.
  • the moving contact 82 is insulated from the control rod which forms an extension of it by an insulating section 88.
  • a passage conductor 90 cooperates with the moving contact and picks up the current in a manner similar to that described above.
  • a stationary transverse partition 92 divides the enclosure 72 into two closed compartments 94 and 96, referred to respectively as the downstream compartment 94 and the upstream compartment 96.
  • a stationary nozzle 98 of insulating or resistant material and having a convergent-divergent shape is arranged on the partition 92 which has a central opening for the passage of the fixed contact 81 and to permit the blowing.
  • the neck of the nozzle surrounds the end of the moving contact 82 with a small amount of play.
  • the partition 92 is also pierced to permit the passage of a suitable number-for instance fourof sliding control rods 100 which are hollow and which can be arranged in the form of a squirrel cage.
  • the lower ends of the hollow rods 100 are rigidly connected with the moving contact 82 by a disc, for instance star shaped, 102. Their upper ends are rigidly connected with a blow piston 104 through which they pass.
  • the piston 104 which is pierced to permit the passage of the stationary contact 81 is thus rigidly connected with the moving contact 82 in the example selected, but it will be understood that a dead-stroke drive mechanism can also control the piston 104 from the movement of the moving contact 82, or vice versa.
  • the piston 104 which slides directly on the inner wall of the envelope 72 defines in the upstream compartment 96 compression volume upstream of the nozzle 98.
  • the moving contact 82 is hollow and perforated at 106 to cause its inside to communicate with the compartment 94.
  • This device operates in the following manner:
  • the shaft 86 is actuated and it, by means of the system of levers 84, displaces the moving contact 82 carrying along the disc 102, the hollow rods 100 and the piston 104.
  • the gases. present in the compression volume are compressed by the piston 104 and pass through the nozzle 98 to penetrate into the hollow moving contact 82.
  • These gases then pass through the holes 106 to arrive in the downstream compartment 94.
  • a part of the gases delivered into the downstream compartment 94 passes through the hollow rods 100 and enters into the space behind the piston 104.
  • the enclosure 72 is utilized for the blowing of the arc and that a transfer of fluid from a charged pole towards a less charged adjacent pole is effected automatically through the enclosure 78.
  • the volume of the reservoir 78 contributes to the circulation of the gas and to its cooling.
  • the stationary contact 81 can also be hollow and assure communication between the spaces located on opposite sides of the piston 104, which avoids the use of hollow rods 100.
  • the apparatus of FIG. 5 has extensive analogies to the one illustrated in FIGS. 1 and 4 and a more detailed description of its structure and operation would appear superfluous.
  • FIG. 9 which is a view similar to that of FIG. 4, and in which the same reference numbers are used to designate similar or identical parts
  • the apparatus in accordance with FIGS. 1 to 4 is modified so as to have an outer parallelepiped contour which facilitates the attachment thereof.
  • Inner transverse webs 110 and 112 separate the adjacent enclosures 12, 14 and 14, 16 respectively and constitute braces or ribs which reinforce the structure of the molded body 10.
  • the square outer section with circular recesses 12, 14 and 16 liberates in the corner portions spaces used for the housing of the channels 114, 1 16, 118 and extending on the inside of the webs 110 and 112 and causing the downstream compartment 55 (see FIG. 2) to communicate via orifices 119 with the dead compartment 49.
  • the channels 114 to 120 can be common to the adjacent enclosures or be individual to each enclosure. They may be associated with the communication by the hollow contact 40 and on the other hand take the place of the latter, permitting the use of a solid moving contact.
  • the making of the channels upon the molding does not present any difficulty whether they are made in the mass or produced by inserts.
  • the apparatus in accordance with FIG. 9 differs from that described with reference to FIGS. 1 to 4 only in the shape of the molded body and the arrangement of the means of communication between the two downstream compartments 55 and 49 of the enclosure and it is therefore needless to describe them in further detail. It operates in identical fashion.
  • FIGS. 6 to 8 illustrate one embodiment of the invention which is of particularly easy to assemble and manufacture.
  • identical or similar parts bear the same reference numbers in FIGS. 6 to 8 and FIGS. 1 to 4.
  • FIG. 6 there can be noted the essential elements of the arrangement of FIG. 2, in particular the passages 30, 32, the stationary contact 46, the compartments 49, 53 and 55 and the moving contact bearing the piston 48 and the nozzle 50.
  • the body or housing 122 of the apparatus which is of generally parallelepiped shape (see FIGS. 7 and 8) has three subdivisions 128, 130, 132 defined by transverse partitions or webs 124 and 126 and of square section which are capable of serving as recess for the three poles of the circuit breaker.
  • a blowout assembly designated by the reference number 134 and formed by a cylinder 136 the end 138 of which is fastened by screwing advantageously to the passage conductor 30 and a piston 48 adapted to slide within the cylinder 136.
  • the unit 134 defines the compression compartment 53 of variable volume ans its cross section corresponds to that of the recess 128 of square cross section of the housing 122 to permit easy insertion with small amount of play.
  • At the four corners of the recess 128 there are defined spaces between the outer surface of the cylinder 136 and the inner wall of the recess 128 which provide communication between the downstream compartment and the dead compartment 49 which are located on opposite sides of the unit 134.
  • the transverse webs 124 and 126 are provided at the downstream compartments 55 with openings 70 providing communication, in the manner described above, for the enclosures 128, 130 and 132 of the different poles.
  • FIGS. 6 to 8 The operation of the apparatus shown in FIGS. 6 to 8 does not differ from that described above, and it is sufficient to state this embodiment makes it possible to be independent of the precision of molding of the housing 122, the periphery of the piston 48 no longer cooperating with the wall of the enclosure, but rather with an attached cylinder the manufacture and mounting of which with the required precision do not raise any particular problem.
  • the honeycomb structure of the body of the apparatus imparts to it substantial rigidity and strength, permitting relatively small wall thicknesses and therefore a minimum cost of manufacture.
  • poles placed at the vertex of a triangle or in any other manner depending on the number of pole units in the circuit interrupter may, of course, be different, for instance oval, as may be structure of the pole units of the circuit interrupter, without thereby going beyond the scope of the invention.
  • a multiphase puffer-type circuit interrupter comprising a gastight enclosure of insulating material defining a plurality of contiguous, generally tube-shaped parallelly extending arcextinguishing chambers, one for each phase, each chamber containing an arc-extinguishing gas; a pair of aligned elongated contact members separable to draw an are between the end portions thereof; a blast orifice surrounding at least one of said end portions; and puffer means to direct a blast of arcextinguishing gas through said blast orifice towards said are upon separation of said contact members, said enclosure including means establishing a direct fluid communication between the exhaust parts of said arc-extinguishing chambers located at the exhaust end of said blast orifice to permit the blast of arc-extinguishing gas of a given chamber to exhaust also into other chambers thereby to put the total volume of the exhaust parts of all chambers at the disposal of each phase.
  • a circuit interrupter according to claim 1. said contact members comprising a hollow contact member defining an inner exhaust conduit.
  • a circuit interrupter according to claim 5, said hollow contact member being connected to an outer control rod by a portion of insulating material located in said dead space.
  • a circuit interrupter according to claim 5, said gastight enclosure defining in each chamber a cylindrical portion cooperating in slidable relation with the circumference of said puffer piston to produce said gas blast.
  • said puffer means comprising a puffer cylinder coaxially mounted in the corresponding arc-extinguishing chamber and secured to the inner wall portion of said enclosure.
  • a three-phase puffer-type circuit interrupter comprising a gastight molded enclosure of insulating material having an outer wall member and a pair of inner partition walls defining three generally cylindrical parallelly extending arc-extinguishing chambers containing an arc-extinguishing gas under pressure above atmospheric pressure, each chamber including a pair of axial contact members separable to draw an arc; a blast orifice surrounding at least one end portion of at least one of said contact members; and puffer means to direct a blast of arc-extinguishing gas through said blast orifice towards said are upon separation of said contact members, said partition walls defining orifice means establishing a free fluid communication between the corresponding chambers at the exhaust end of said blast orifices.
  • a multiphase puffer-type circuit interrupter comprising a plurality of juxtaposed elongated parallelly extending arcextinguishing chambers, one for each'phase, each chamber comprising a generally cylindrical envelope of insulating material and containing an arc-extinguishing gas under pressure above atmospheric pressure; a pair of axially aligned elongated contact members separable to draw an are between the end portions thereof; a blast orifice surrounding the end portions of said contact members in the closed-circuit positions thereof; and puffer means to direct a blast of arc-extinguishing gas through said blast orifice towards said are upon separation of said contact members, and transverse conduit means interconnecting in free fluid communication the end portions of said chambers facing the exhaust end of said blast orifices.
  • a puffer mechanism comprising a puffer piston slidably mounted within a cylindrical wall portion of said chamber to produce a blast of arc-extinguishing gas

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US51313A 1969-07-07 1970-06-30 Polyphase circuit interrupter of the fluid blast puffer-type Expired - Lifetime US3641295A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR6923036A FR2053503A5 (enrdf_load_stackoverflow) 1969-07-07 1969-07-07
FR6926647A FR2055871A5 (enrdf_load_stackoverflow) 1969-07-07 1969-08-01
US5131370A 1970-06-30 1970-06-30
FR7033174A FR2105575A6 (enrdf_load_stackoverflow) 1969-07-07 1970-09-11

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US3641295A true US3641295A (en) 1972-02-08

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US51313A Expired - Lifetime US3641295A (en) 1969-07-07 1970-06-30 Polyphase circuit interrupter of the fluid blast puffer-type

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US (1) US3641295A (enrdf_load_stackoverflow)
CH (1) CH524239A (enrdf_load_stackoverflow)
DE (1) DE2033562A1 (enrdf_load_stackoverflow)
FR (3) FR2053503A5 (enrdf_load_stackoverflow)
GB (1) GB1290106A (enrdf_load_stackoverflow)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852551A (en) * 1972-09-25 1974-12-03 Westinghouse Electric Corp Puffer-type compressed-gas circuit-interrupter
DE2438951A1 (de) * 1973-08-30 1975-03-13 Merlin Gerin Blechgekapselte vorgefertigte mittelspannungsschaltanlage
US4139752A (en) * 1975-05-30 1979-02-13 Mitsubishi Denki Kabushiki Kaisha Gas-type circuit-breaker
FR2476382A1 (fr) * 1980-02-20 1981-08-21 Hitachi Ltd Disjoncteur triphase
US4663504A (en) * 1983-04-11 1987-05-05 Raychem Corporation Load break switch
EP0430189A3 (en) * 1989-11-29 1992-02-12 Hitachi, Ltd. Gas-blast load-break switch
FR2683938A1 (fr) * 1991-11-20 1993-05-21 Alsthom Gec Disjoncteur-auto sectionneur a hexafluorure de soufre et applications aux cellules et aux postes et sous-stations prefabriques.
WO2007087874A1 (de) * 2006-01-11 2007-08-09 Abb Technology Ag Leistungsschalter für eine gasisolierte hochspannungsschaltanlage
CN101504895A (zh) * 2009-01-16 2009-08-12 北京维益埃电气有限公司 新型压气式负荷开关单元
WO2010133464A1 (de) * 2009-05-20 2010-11-25 Abb Technology Ag Elektrischer leistungsschalter und schaltfeld mit leistungsschalter
EP2273525A1 (de) 2009-05-20 2011-01-12 ABB Technology AG Elektrischer Leistungsschalter
US20110227252A1 (en) * 2005-10-28 2011-09-22 S&C Electric Company Circuit Interrupter Assembly and Method of Making the Same
EP2390890A1 (de) * 2010-05-28 2011-11-30 ABB Technology AG Schaltkammerisolationsanordnung für einen Leistungsschalter
CN102420397A (zh) * 2010-05-28 2012-04-18 Abb技术有限公司 断路器
US20150294819A1 (en) * 2014-04-11 2015-10-15 S&C Electric Company Circuit interrupters with air trap regions in fluid reservoirs
EP4088298B1 (de) 2020-03-10 2024-06-19 Siemens Energy Global GmbH & Co. KG Elektrische schaltanordnung

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FR2595003B1 (fr) * 1986-02-27 1994-04-15 Merlin Et Gerin Appareillage electrique multipolaire a enveloppe commune et a isolement gazeux
FR2663457B1 (fr) * 1990-06-14 1996-06-07 Merlin Gerin Disjoncteur electrique a autoexpansion et a rotation de l'arc.
DE4041790A1 (de) * 1990-12-24 1992-06-25 Sachsenwerk Ag Metallgekapselte, mit einem isolierglas gefuellte schaltanlage
EP0572346A3 (en) * 1992-02-03 1994-07-27 Ormazabal Ocerin Javier High-voltage circuit breaker
FR2903241A1 (fr) * 2006-11-23 2008-01-04 Areva T & D Sa Enveloppe d'appareillage electrique haute ou moyenne tension constituee de deux demi-coquilles assemblees par soudage thermique
FR2909230B1 (fr) * 2006-11-23 2009-02-13 Areva T & D Sa Enveloppe d'appareillage electrique haute et moyenne tension comportant une membrane constituant une zone affaiblie

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GB537482A (en) * 1939-12-21 1941-06-24 Reyrolle & Company Ltd Improvements in or relating to electric circuit-breakers of the gas-blast type
CH384673A (fr) * 1961-06-29 1964-11-30 Comp Generale Electricite Interrupteur électrique à coupure dans un gaz diélectrique, tel qu'un gaz halogéné
US3381101A (en) * 1965-01-15 1968-04-30 Westinghouse Electric Corp Cross-blast circuit breakers with positive coordination between contact members and puffer structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB537482A (en) * 1939-12-21 1941-06-24 Reyrolle & Company Ltd Improvements in or relating to electric circuit-breakers of the gas-blast type
CH384673A (fr) * 1961-06-29 1964-11-30 Comp Generale Electricite Interrupteur électrique à coupure dans un gaz diélectrique, tel qu'un gaz halogéné
US3381101A (en) * 1965-01-15 1968-04-30 Westinghouse Electric Corp Cross-blast circuit breakers with positive coordination between contact members and puffer structure

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852551A (en) * 1972-09-25 1974-12-03 Westinghouse Electric Corp Puffer-type compressed-gas circuit-interrupter
DE2438951A1 (de) * 1973-08-30 1975-03-13 Merlin Gerin Blechgekapselte vorgefertigte mittelspannungsschaltanlage
US4139752A (en) * 1975-05-30 1979-02-13 Mitsubishi Denki Kabushiki Kaisha Gas-type circuit-breaker
FR2476382A1 (fr) * 1980-02-20 1981-08-21 Hitachi Ltd Disjoncteur triphase
US4663504A (en) * 1983-04-11 1987-05-05 Raychem Corporation Load break switch
EP0430189A3 (en) * 1989-11-29 1992-02-12 Hitachi, Ltd. Gas-blast load-break switch
FR2683938A1 (fr) * 1991-11-20 1993-05-21 Alsthom Gec Disjoncteur-auto sectionneur a hexafluorure de soufre et applications aux cellules et aux postes et sous-stations prefabriques.
EP0543682A1 (fr) * 1991-11-20 1993-05-26 Gec Alsthom Sa Disjoncteur auto-sectionneur à hexafluorure de soufre et applications aux cellules et aux postes et sous-stations préfabriqués
WO1993010548A1 (fr) * 1991-11-20 1993-05-27 Gec Alsthom Sa Disjoncteur auto-sectionneur a hexafluorure de soufre et applications aux cellules et aux postes et sous-stations prefabriques
TR26473A (tr) * 1991-11-20 1995-03-15 Alsthom Gec HEXAFLüORüR KüKüRTLü OTOMATIK AYIRICI ELEKTRIK AKIMINI KESICI TERTIBAT VE BUNUN HAZIR ARA ISTASYON, DAGITIM BIRIM VE BÖLüMLERINDE KULLANILMASI
US20110227252A1 (en) * 2005-10-28 2011-09-22 S&C Electric Company Circuit Interrupter Assembly and Method of Making the Same
US8272127B2 (en) * 2005-10-28 2012-09-25 S&C Electric Company Method of making a circuit interrupting device
WO2007087874A1 (de) * 2006-01-11 2007-08-09 Abb Technology Ag Leistungsschalter für eine gasisolierte hochspannungsschaltanlage
CN101504895A (zh) * 2009-01-16 2009-08-12 北京维益埃电气有限公司 新型压气式负荷开关单元
RU2525028C2 (ru) * 2009-05-20 2014-08-10 Абб Текнолоджи Аг Силовой выключатель и коммутационная панель с силовым выключателем
CN102428535B (zh) * 2009-05-20 2014-11-26 Abb技术有限公司 电气式功率开关和带有功率开关的开关板
WO2010133464A1 (de) * 2009-05-20 2010-11-25 Abb Technology Ag Elektrischer leistungsschalter und schaltfeld mit leistungsschalter
US8481881B2 (en) 2009-05-20 2013-07-09 Abb Technology Ag Electric circuit breaker and switchgear panel with circuit breaker
CN102428535A (zh) * 2009-05-20 2012-04-25 Abb技术有限公司 电气式功率开关和带有功率开关的开关板
EP2273525A1 (de) 2009-05-20 2011-01-12 ABB Technology AG Elektrischer Leistungsschalter
KR101249323B1 (ko) * 2010-05-28 2013-04-01 에이비비 테크놀로지 아게 차단기용 스위칭 챔버 절연 구조체
US8420971B2 (en) 2010-05-28 2013-04-16 Abb Technology Ag Switching chamber insulation arrangement for a circuit breaker
CN102420397A (zh) * 2010-05-28 2012-04-18 Abb技术有限公司 断路器
CN102263384A (zh) * 2010-05-28 2011-11-30 Abb技术有限公司 用于断路器的开关箱绝缘布置
EP2390890A1 (de) * 2010-05-28 2011-11-30 ABB Technology AG Schaltkammerisolationsanordnung für einen Leistungsschalter
CN102263384B (zh) * 2010-05-28 2015-05-13 Abb技术有限公司 用于断路器的开关箱绝缘布置
US20150294819A1 (en) * 2014-04-11 2015-10-15 S&C Electric Company Circuit interrupters with air trap regions in fluid reservoirs
US9576757B2 (en) * 2014-04-11 2017-02-21 S&C Electric Company Circuit interrupters with air trap regions in fluid reservoirs
EP4088298B1 (de) 2020-03-10 2024-06-19 Siemens Energy Global GmbH & Co. KG Elektrische schaltanordnung

Also Published As

Publication number Publication date
DE2033562A1 (de) 1971-01-21
FR2105575A6 (enrdf_load_stackoverflow) 1972-04-28
CH524239A (fr) 1972-06-15
GB1290106A (enrdf_load_stackoverflow) 1972-09-20
FR2055871A5 (enrdf_load_stackoverflow) 1971-05-14
FR2053503A5 (enrdf_load_stackoverflow) 1971-04-16

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