US3855435A - Solid insulated breaker of a small size - Google Patents

Solid insulated breaker of a small size Download PDF

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Publication number
US3855435A
US3855435A US00411068A US41106873A US3855435A US 3855435 A US3855435 A US 3855435A US 00411068 A US00411068 A US 00411068A US 41106873 A US41106873 A US 41106873A US 3855435 A US3855435 A US 3855435A
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United States
Prior art keywords
breaker
insulated
solid state
cylinder
main
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Expired - Lifetime
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US00411068A
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English (en)
Inventor
H Himi
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Meidensha Corp
Meidensha Electric Manufacturing Co Ltd
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Meidensha Electric Manufacturing Co Ltd
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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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • 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
    • H01H33/24—Means for preventing discharge to non-current-carrying parts, e.g. using corona ring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
    • 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
    • H01H2033/566—Avoiding the use of SF6
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66238—Specific bellows details
    • H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows
    • 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
    • H01H33/55—Oil reservoirs or tanks; Lowering means therefor

Definitions

  • ABSTRACT A solid state material insulated breaker of a small size comprising a molded main cylinder of electrically insulating material.
  • the main cylinder is sealed at the upper and lower ends thereof and encloses a breaker unit having a fixed and a movable contacts therein.
  • This invention relates to an electric breaker and more particularly to a solid insulated breaker or interrupter of a small size.
  • a breaker for a small sized transformer substitution accordingto one of the above insulation methods for example, of 7.2 K V or 24 KV classaccording to the solid state insulation has been manufactured by disposing inside the mold its live conductive parts such as lead wires, breaker unit and the like, injecting a molten electric insulation material composed mainly of the epoxy resin into the space between the mold and the live conductive parts including the breaker unit, and forming all the parts in one molded body.
  • the object of the present invention is to solve the above problems and to provide a small-sized and solid material insulated breaker or interrupter for a high voltage which can be manufactured at moderate costs without needing" any costly molding.
  • Another object of the present invention is to provide a small-sized and solid material insulated breaker which can be used for the transformer substation of a small size and variously manufactured at moderate costs in small quantities.
  • A.further object of the present invention is to provide a small-sized breaker which can be manufactured as a breaker with a housing of a desired dimension easily and in a comparatively short time.
  • a small-sized breaker in brief, includes a main cylinder of electrically insulating solid material sealed at the upper and lower ends thereof and having a breaker unit enclosed therein, said breaker unit including fixed and movable contact members, two elongated insulated electric conductors passing through the wall of the main cylinder at longitudinally distant positions thereon, said conductors being at one ends connected to the fixed and movable contact members of the breaker and atthe other ends adapted to' contact the ends of bus-bars, and an electrically insulating material filled up' between said breaker unit and said main cylinder. 7
  • the small-sized and solid material insulated breaker according to the presentinvention may be easily manufactured by using a molded cylinder member of insulating material and a simple form and inserting at one ends the insulated conductors of a fixed length, which are connectabl'e atthe other ends, for example, to the connection lead'wires of another electric machinery and are manufactured separately, into the holes bored at the corresponding positions of the side wall of said main insulating cylinder. 2
  • FIG. 1 is a partial vertical sectional view of a preferred embodiment of the solid material insulated and small-sized breaker according to' the present invention
  • FIGS. 2 and 3 are respectively partial sectional viewsof the two different insulated conductors for the dis connecting section preferred for the breaker shown in FIGS. 5 and 6 are respectivelypartial sectional views of another embodiments of insulated conductor for the disconnecting section shown in FIGS. 2 and3 attached to the housing by suitable fixing means;
  • FIG. 1 there is shown a small-sized and solid material insulated breaker or interrupter, more specially a vacuum breaker according to the present invention.
  • This breaker includes insulated electrical conductors 12, 14 and a housing 16. v
  • the insulated electrical conductors or leads 12, 16 are respectively formed with an elongated electric conductor 18 of a fixed length and a circumferential layer 20. Both endsof said electric conductor 18 are respectively exposed for connecting to another electric conductors.
  • the circumferential layer 20 is provided with a cylindrical solid insulator 22 of an epoxy resin, two capacitor cones 28,30 concentrically arranged therein and an electrically grounding cylindrical layer of greater diameter.
  • This circumferential layer may be formed by winding a paper and the like to a suitable thickness around an elongated electric conductor 18, disposing cylindrical electric conductor layers 24a, 24b, 24c, 24d and 26a, 26b, 26c, 26d, which have respectively diameters growing consecutively in this order, concentrically near both ends of the elongated conductor respectively so as to form two capacitor cones 28, 30 with the top points of the cones situated near both ends respectivelyof the elongated conductor, providing as a grounding "layer a cylindrical electrical conductor having a lengthalmost equalto the axial distance between the supposed bottom faces of the two cones and having the external diameter a fixed dimension smaller than that of the circumferential layer 20, impregnating the intermediate product thusobtained with insulating material such as epoxy resin, and depositing the insulating material around the cylindrical grounding layer to a fixed thickness.
  • insulating material such as epoxy resin
  • FIG. 3 is another modification of the insulated conductor which is connected at one end to an electrical lead of another device at the disconnecting section (not shown).
  • a molded product including concentrical shield rings 34, 36 formed with the electric conductor material electrically connected to both ends of the grounding layer 32' instead of the capacitor cones shown in FIG. 2.
  • FIG. 4 there is shown a main molded cylinder 36 of insulating material used for the housing 16 of the breaker in FIG. 1.
  • This main cylinder includes a cylindrical electric conductor layer 38 as its grounding layer buried in the wall of the cylinder 36 instead of providing a grounding layer on the outer surface thereof. F ur-..
  • holes or openings 40, 42 are formed separating from each other longitudinally at a fixed distance in the wall of the cylinder.
  • screws are provided for receiving cylindrical sup porting members (described later) including also complementary screws formed on the inside surfaces thereof respectively. Accordingly, the external surface of the conductor layer 38 must be placed inside the core diameter of the screws provided upon the external surface of the main cylinder 36. Otherwise, the conductor layer 38 will be cut off at places corresponding to the bottoms of screws which will be provided and the corona discharge will occur when used.
  • the conductor layer 38 should be rolled around the external circumference of molded cylinder of insulating material or around a external circumference of the cylinder produced bywinding a paper and the like to a fixed thickness around a core rod having a desired external diameter and 'then removing the core rod from the resultant article, that a paper and the like should be wound around the conductor layer thus formed, and that the intermediate product thus obtained should be impregnated with insulating epoxy resin.
  • both cylindrical supporting members 44 and 46 of metal material, on the inside surfaces of which screws are formed, are formed
  • each supporting member 44, 46 openings 48, 50 are provided and aligned with the openings 40, 42, respectively, in the main insulating cylinder 36. Then, through the openings 40, 42 of said main insulating cylinder 36 as well as through the openings 48, 50 of said supporting members 44, 46, both insulated conductors 12, 14, respectively, are inserted in common.
  • both metal fittings 52, 54 are fitted respectively on the screw portions formed around the external circumferences of the insulated conductor 12, 14 by the screws provided on the inside surfaces of the cylindrical portions 52a, 54a of the fittings 52, 54.
  • the left side surfaces of the flange portions radially externally extending from the left ends (viewed in FIG. 1) of each cylindrical portions 52a, 54a of said fittings 52, 54 are fonned in a supplemental shape for the supporting members 44, 46 and firmly attached by suitable fixing means such as screws 56, 58 to the external side surfaces of the supporting members.
  • Numerals 60 and 62 indicate respectively O-rings inserted between the support member 44 and the fitting 52 as well as between the support member 46 and the fitting 54, and they prevent the leak out of the liquid insulating medium filled inside the housing 16 from between each support member' and each fitting.
  • a vacuum breaker unit 64 is inserted inside the main cylinder 36.
  • This unit is shown as including two cylindrical glassy containers 66, 68, a ring-shaped electric conductor portion 69 connecting the containers to each other, and electrically conductive plates or flanges 70, 72 provided at remote ends of the containers 66, 68.
  • fixed and movable contacts are provided within the containers 66, 68.
  • the upper end 73 of the electric conductor connected to said'fixed contact passes throught the upper conducting plate and appears on the upper portion of the unit 64. It is inserted through conductive connecting ring 76 intoa concave provided in the lower part of a substantially trapezoid-shaped, electrically conducting medium 74.
  • the right side surface (viewed in FIG. 1) of the trapezoid-shaped medium. 74 includes a concave wherein the exposed left end (in FIG. 1) of the insulated conductor 12 for the disconnecting section is inserted through the ring-shaped contact 78.
  • the upper surface of the support member 44 fitted on the upper circumferential portion of said main insulating-cylinder 36 is placed at the same level as the upper surface of the flange portion 80b of'the V-shaped supporting element 80.
  • a cap 82 For sealing up the upper opening of the main insulating cylinder 36, there is provided a cap 82 thereon, wherein the lower circumferential surface of the cap is contacted on the upper surfaces of the support member 44 and the supporting element 80 respectively and is attached by suitable means such as ascrew 84 and the like to the upper surface of the supporting member 44.
  • suitable means such as ascrew 84 and the like to the upper surface of the supporting member 44.
  • O-ring86, 88 there are provided between the upper surface of the flange portion 80b of the V-shaped supporting element 80 and the lower surface of the circumferential portion of the cap 82, there are provided O-ring86, 88, respectively, for the liquid and gas-tight purpose.
  • a lower, electrically conducting medium 90 having a symmetrical section as compared with the upper medium 74 is provided integral with the electrically conducting plate 72, and it is supported by an insulating support cylindrical member 92.
  • a cylindrical 'supportingmember 94 is fitted by a screw formed on the inside surface of the supporting member engaging the screwprovided on the outer circumference of the lower portion of the main insulating cylinder 36.
  • the supporting member 94 is secured to the base plate 98 by a fitting means such as a screw member 96 and it is used as a part for attaching the breaker as a whole to the base plate 98.
  • a movable lead member 102 connected to the movable contact (not shown in FIG. 1) of the breaker unit 64 is inserted inside the hole 100.
  • An electrically conductive ringed contact member 103 for connecting the movable lead rod 102 and the lower trapezoidal medium 90 to each other is inserted into the depression with the rod 102 threaded therein.
  • the lower part of the movable lead member 102 is pivoted at the upper end of a bar 104 of electrically insulating material.
  • the lower end of the insulating bar 104 is pivoted at the tip 1100 of a crank 110 which is pivotable around an axis 108. Accordingly, by the swinging motion of the crank, the movable lead 102 may reciprocate to connect and disconnect the movable contact secured on the lead 102 to and from, respectively, the fixed contact inside the breaker unit.
  • Numeral 112 is a casing of the crank and it is attached to the lower surface of the base plate 98.
  • the lower trapezoidal medium 90 there isprovided a concave or depression in which is received an electrically conductive ringed contact 114, in which, in turn, is inserted one exposed end of an insulated electrical conductor 14, similar to the insulated conductor 12, passing through the opening 42 (FIG. 4) of the main insulating cylinder 36. Accordingly, when the fixed contact and the movable contact in the breaker unit 64 are contacted, an electric passage is formed passing through the electric conductor 18 of the insulated conductor 12, the upper trapezoidal medium 74, the fixed and movable contacts of the-breaker unit 64, the lower trapezoidal medium 90 and the conductor 18 of the lower insulated conductor 14.
  • the supporting members 46, 94 may beformed as structually integral with each other, but when they are manufactured separately as in FIG. 1, it is convenient that the supporting member 46 may be disposed in place away from the member 44 according to the length of the breaker unit inserted into the main insulating cylinder 36.
  • the housing 16 of the breaker is formed with the base 98, the main insulating cylinder 36 and the cap 82.
  • Numeral 116 is a liquid insulating medium such as an electrically insulating oil inserted into the housing.
  • Numeral 118 is an 0-ring inserted between the supporting member 94 and the plate 98 is a supporting box 120 with the base plate fixed thereon by a screw member 122.
  • the insulated electric conductors l2 and 14 are, at the left portions thereof inserted into the liquid insulating medium 116 inside the housing 16, and connected at the left exposed ends thereof to the upper and lower trapezoidal mediums 74, 90 through the corresponding ringed contacts 78, 114, respectively. Further, the left end portions of the soild circumferential layers 20, 20 for the upper and lower insulated conductors ,12, 14 are at the outer surfaces thereof, respectively, contacted with the liquid insulating medium 116 in the housing 36.
  • the insulated conductor 12 has a pair of capacitor cones or shield rings as shown in FIGS. 2 or 3 embedded in the circumferential layer or 20', respectively, so that a predetermined dielectric strength may be obtained along the external circumference of the circumferential layer 20 of the insulated conductor 12 between the left exposed conductor portion of the insulated conductor 12 and the end edge 38a of the grounding layer 38 of the main insulating cylinder 36. Accordingly, the creeping dielectric strength of the insulated conductor 12 portion in the housing 16 is sufficiently kept. This applies also to the lower insulated conductor 14. i i
  • the creeping dielectric strength is referred in connection with the opening 40 of the main insulating cylinder 36.
  • the grounding layer 38 is concentrically provided in the wall of the main insulating cylinder 36. Accordingly, a predetermined dielectric strength is required, for example between the edge 38a of the grounding layer 38 exposed at the opening 40 of the main insulating cylinder 36 and the right lower edge 74a of the upper trapezoidal medium 74 as well as the'right flange portion of the upper conductive plate 70 for the breaker unit 64 respectively.
  • the exposed edge 38 is at ground potential
  • the upper trapezoidal medium 74, the flange portion of the conductive plate 70 for the breaker unit 64 and the ring-shaped conductive portion 69 connecting the glassy containers 66, 68 to each other are at a predetermined high voltage level.
  • the passages thereof are [3,, B and 63, shown in a broken line, whichpass from respectively the lower right end portion 74a of the upper trapezoidal medium 74, the right flange portion of theconductive plate 70 and the right flange portion of the intermediate conductive portion 69, through the liquid insulating medium 116 along the opening surface of the main insulating cylinder 36, to the exposed edge 38a of the grounding layer 38.
  • the liquid insulating medium 116 is filled up inside the main insulating cylinder, but the insulating medium is not limited to the liquid one, a gas insulating medium such as SF, (sulfur hexafluoride) gas may be used.
  • a gas insulating medium such as SF, (sulfur hexafluoride) gas may be used.
  • the fittings 52, 54 threaded upon the insulated conductor l2, 14 are attached to the cylindrical supporting members 44, 46 by fitting means such as bolts 56, 58, but the fitting way is not limited to the just-mentioned one.
  • the supporting member 44' or 46' may be provided with a screw hole directly therein and fitted in place on the exterior circumference of the main insulating cylinder 36, and then the insulated conductor 12 or 14 may be screwed directly into the screw hole instead of using the fitting 52 or 54 shown in FIG.
  • the insulated conductor 12 or 14 may be screwed directly into a screw hole bored in the main insulating cylinder 36.
  • the molding price is moderate. Further. if the breaker according to the present invention is requested to change in fitting or mounting conditions without changing the electric rating thereof, the insulated conductors '12, 14 can only be requested to change in length instead of changing the form of the main cylinder 16. Accordingly, the mold types can be limited to a small number, and various breakers may be economically manufactured if in a small amount.
  • the opening for attaching an insulated conductor may be easily formed in the side wall of the main cylinder at a certain position decided according to the using conditions, and on the other hand, an insulated conductor may be easily produced as a long or short one'according to the fitting conditions such as the fitting dimentions, for example, length to a power-board or other electric machines. Therefore, the breaker may be manufactured generally economically according to the present invention.
  • a solid state material insulated breaker of a small size comprising a main cylinder of electrically insulating solid state material and sealed at the first and second ends thereof, said main cylinder'having two openings longitudinally spaced from each other in the wall thereof, a breaker unit enclosed in said main cylinder and having a movable and a fixed contacts therein, means for fixing said breaker unit in said main cylinder, two insulated electric conductors inserted through said two openings of said main cylinder, one ends of which conductors are electrically connected respectively to said fixed and movable contacts of said breaker unit, each insulated conductor including an elongated, electric conductor and a solid insulating material layer formed around thereof in a fixed thickness, means for attaching said insulated conductors, respectively, to said main cylinder and a insulating material filled into the space between said sealed main cylinder and said breaker enclosed therein.
  • a solid state materialinsulated breaker of a small size comprising a main insulating cylinder having two openings axially spaced from each other therein and sealed at its upper and lower ends, a breaker unit enclosed in said main insulating cylinder and having movable and fixed contacts therein, means for supporting said breaker unit, two solid state material insulated electric conductors inserted into said two openings of said main insulating cylinder and electrically connected to the movable and fixed contacts of said breaker unit,
  • taching including a cylindrical supporting member attached concentrically to the external circumference of said main insulating cylinder in a liquid-and gas-tight condition, said supporting member having a screwed hole in theside wall thereof, said screwed hole, when in place, being capable of aligning with the hole provided in the side wall of said main insulating cylinder, said insulated conductor being inserted through said two holes aligned with each other in a liquid-and gastight condition and electrically connected to said fixed and movable contacts of said breaker unit.
  • a solid state material insulated breaker of a small size as claimed in claim l3, wherein an upper end of said main insulating cylinder is sealed by a cap, an upper-supporting means for said breaker unit is'provided over said breakerunit and provided'with a flange portion contacted to the upper end surface of said main insulating cylinder, said flange portion being supported respectively by the upper end surface of said main insulating cylinder and the lower circumferential surface of said cap, a lower supportingmeans for said breaker unit including a small insulating cylinder provided below the breaker unit and further a base is provided for supporting said small insulating cylinder.
  • a solid state material insulated breaker of a small size as claimed in claim 17, said means for driving said movable lead includes a crank means swingable around a fixed pivot point.
  • a solid state material insulated breaker of a small size comprising amain insulating cylinder sealed at the ,upper and lower ends thereof, a breaker unit enclosed rial, said conductors passing through the wall of said;

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Insulating Bodies (AREA)
US00411068A 1972-11-01 1973-10-30 Solid insulated breaker of a small size Expired - Lifetime US3855435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47109670A JPS4967167A (fi) 1972-11-01 1972-11-01

Publications (1)

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US3855435A true US3855435A (en) 1974-12-17

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US00411068A Expired - Lifetime US3855435A (en) 1972-11-01 1973-10-30 Solid insulated breaker of a small size

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US (1) US3855435A (fi)
JP (1) JPS4967167A (fi)
CA (1) CA998412A (fi)
DE (1) DE2354632C3 (fi)
FR (1) FR2204873B1 (fi)
GB (1) GB1451346A (fi)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124790A (en) * 1975-03-06 1978-11-07 Mcgraw-Edison Company Protective switch device and operating mechanism therefor
US4150270A (en) * 1976-02-23 1979-04-17 Mcgraw-Edison Company Encapsulated high voltage switching device
US4256938A (en) * 1977-09-03 1981-03-17 Wickmann-Werke Boblingen Gmbh Electrical control device for high and low voltage installations
EP0033636A1 (en) * 1980-02-04 1981-08-12 Kabushiki Kaisha Meidensha Vacuum power interrupting device
US5091615A (en) * 1989-01-30 1991-02-25 Sprecher Energie Ag Vacuum switch
US5286932A (en) * 1991-07-26 1994-02-15 Gec Alsthom Sa Vacuum bulb provided with electrical insulation
FR2854983A1 (fr) * 2003-05-15 2004-11-19 Alstom Traversee de mouvement pour l'actionnement d'un appareillage de coupure en moyenne ou haute tension
US20140042125A1 (en) * 2011-06-02 2014-02-13 Mitsubishi Electric Corporation Tank-type vacuum circuit breaker
CN105415225A (zh) * 2015-11-23 2016-03-23 平高集团有限公司 一种固封极柱的夹紧定位工装
DE102015208268A1 (de) * 2015-05-05 2016-11-10 Siemens Aktiengesellschaft Elektrisches Schaltgerät und entsprechende Schaltungsanlage
CN106783368A (zh) * 2017-01-13 2017-05-31 中航宝胜电气股份有限公司 硅橡胶固封极柱的柱式高压真空断路器
CN106783366A (zh) * 2017-01-13 2017-05-31 中航宝胜电气股份有限公司 具有高载流能力的126kV柱式真空断路器
US20180108504A1 (en) * 2015-06-18 2018-04-19 Abb Schweiz Ag Medium voltage circuit breaker in subsea environment
CN109844893A (zh) * 2016-09-20 2019-06-04 轨道动力系统有限责任公司 高压开关装置和带有高压开关装置的开关设备以及高压开关装置的制造方法

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DE2526942A1 (de) * 1975-06-16 1976-12-30 Licentia Gmbh Hochspannungs-leistungsschalter
JPS52115856U (fi) * 1976-02-27 1977-09-02
DD226690A1 (de) * 1984-09-24 1985-08-28 Buchwitz Otto Starkstrom Schalterpol
GB8429431D0 (en) * 1984-11-21 1985-01-03 Ass Elect Ind Circuit breakers
DD241810A1 (de) * 1985-10-16 1986-12-24 Buchwitz Otto Starkstrom Schalterpol fuer leistungsschalter
DE3709290A1 (de) * 1987-03-20 1988-09-29 Licentia Gmbh Druckgasisolierter hochspannungsleistungsschalter mit einschaltwiderstand
DE3717864A1 (de) * 1987-05-26 1988-11-17 Slamecka Ernst Vakuumschalter
DE3718108A1 (de) * 1987-05-27 1988-12-08 Slamecka Ernst Vakuumschalter
WO1993002463A1 (de) * 1991-07-24 1993-02-04 Elin Energieversorgung Gesellschaft M.B.H. Schalterpol eines leistungsschalters
DE29813231U1 (de) 1998-07-24 1998-10-08 Alstom Energietechnik GmbH, 60528 Frankfurt Hochspannungsschalter
ES2222432T3 (es) * 2002-02-21 2005-02-01 Siemens Aktiengesellschaft Boquilla de paso para guiar un conductor electrico a traves de una pared de una carcasa.

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US3123698A (en) * 1961-02-10 1964-03-03 Circuit breakers having interrupting contacts
US3147356A (en) * 1961-03-15 1964-09-01 Joslyn Mfg & Supply Co Circuits for switches having series connected interrupter sections
US3471669A (en) * 1968-01-16 1969-10-07 Chance Co Ab Encapsulated switch assembly for underground electric distribution service
US3571543A (en) * 1968-09-30 1971-03-23 G & W Electric Speciality Co Multiple position vacuum interrupter switching device
US3751617A (en) * 1972-06-14 1973-08-07 Gen Electric Vacuum type circuit breaker

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US2809259A (en) * 1955-04-15 1957-10-08 Westinghouse Electric Corp Circuit interrupters
US3071669A (en) * 1959-01-13 1963-01-01 Westinghouse Electric Corp Circuit interrupters
FR1364415A (fr) * 1963-07-24 1964-06-19 Cem Comp Electro Mec éléments d'appareillage électrique débrochables et postes constitues avec de tels éléments
US3394455A (en) * 1967-03-17 1968-07-30 Westinghouse Electric Corp Method of constructing cast electrical bushings

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US3123698A (en) * 1961-02-10 1964-03-03 Circuit breakers having interrupting contacts
US3147356A (en) * 1961-03-15 1964-09-01 Joslyn Mfg & Supply Co Circuits for switches having series connected interrupter sections
US3471669A (en) * 1968-01-16 1969-10-07 Chance Co Ab Encapsulated switch assembly for underground electric distribution service
US3571543A (en) * 1968-09-30 1971-03-23 G & W Electric Speciality Co Multiple position vacuum interrupter switching device
US3751617A (en) * 1972-06-14 1973-08-07 Gen Electric Vacuum type circuit breaker

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124790A (en) * 1975-03-06 1978-11-07 Mcgraw-Edison Company Protective switch device and operating mechanism therefor
US4150270A (en) * 1976-02-23 1979-04-17 Mcgraw-Edison Company Encapsulated high voltage switching device
US4256938A (en) * 1977-09-03 1981-03-17 Wickmann-Werke Boblingen Gmbh Electrical control device for high and low voltage installations
EP0033636A1 (en) * 1980-02-04 1981-08-12 Kabushiki Kaisha Meidensha Vacuum power interrupting device
US5091615A (en) * 1989-01-30 1991-02-25 Sprecher Energie Ag Vacuum switch
US5286932A (en) * 1991-07-26 1994-02-15 Gec Alsthom Sa Vacuum bulb provided with electrical insulation
FR2854983A1 (fr) * 2003-05-15 2004-11-19 Alstom Traversee de mouvement pour l'actionnement d'un appareillage de coupure en moyenne ou haute tension
WO2004102599A1 (en) * 2003-05-15 2004-11-25 Areva T & D Sa A motion transmission for actuation of a medium or high voltage interrupter apparatus
US20140042125A1 (en) * 2011-06-02 2014-02-13 Mitsubishi Electric Corporation Tank-type vacuum circuit breaker
US9472356B2 (en) * 2011-06-02 2016-10-18 Mitsubishi Electric Corporation Tank-type vacuum circuit breaker
DE102015208268A1 (de) * 2015-05-05 2016-11-10 Siemens Aktiengesellschaft Elektrisches Schaltgerät und entsprechende Schaltungsanlage
US20180108504A1 (en) * 2015-06-18 2018-04-19 Abb Schweiz Ag Medium voltage circuit breaker in subsea environment
US10643814B2 (en) * 2015-06-18 2020-05-05 Abb Schweiz Ag Medium voltage circuit breaker in subsea environment
CN105415225A (zh) * 2015-11-23 2016-03-23 平高集团有限公司 一种固封极柱的夹紧定位工装
CN109844893A (zh) * 2016-09-20 2019-06-04 轨道动力系统有限责任公司 高压开关装置和带有高压开关装置的开关设备以及高压开关装置的制造方法
CN106783368A (zh) * 2017-01-13 2017-05-31 中航宝胜电气股份有限公司 硅橡胶固封极柱的柱式高压真空断路器
CN106783366A (zh) * 2017-01-13 2017-05-31 中航宝胜电气股份有限公司 具有高载流能力的126kV柱式真空断路器
CN106783368B (zh) * 2017-01-13 2019-01-25 中航宝胜电气股份有限公司 硅橡胶固封极柱的柱式高压真空断路器
CN106783366B (zh) * 2017-01-13 2019-03-26 中航宝胜电气股份有限公司 具有高载流能力的126kV柱式真空断路器

Also Published As

Publication number Publication date
DE2354632B2 (de) 1976-08-19
DE2354632A1 (de) 1974-05-09
CA998412A (en) 1976-10-12
GB1451346A (en) 1976-09-29
JPS4967167A (fi) 1974-06-28
DE2354632C3 (de) 1978-09-28
FR2204873A1 (fi) 1974-05-24
FR2204873B1 (fi) 1977-09-23

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