WO2000021106A1 - Commutateur a vide et appareillage de commutation a vide comportant le commutateur - Google Patents

Commutateur a vide et appareillage de commutation a vide comportant le commutateur Download PDF

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Publication number
WO2000021106A1
WO2000021106A1 PCT/JP1999/004116 JP9904116W WO0021106A1 WO 2000021106 A1 WO2000021106 A1 WO 2000021106A1 JP 9904116 W JP9904116 W JP 9904116W WO 0021106 A1 WO0021106 A1 WO 0021106A1
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum
disconnector
circuit breaker
grounding device
switch
Prior art date
Application number
PCT/JP1999/004116
Other languages
English (en)
Japanese (ja)
Inventor
Satoru Kajiwara
Toru Tanimizu
Yoshiyasu Watanabe
Takuya Okada
Yoshitomo Goto
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.
Priority to EP99933192A priority Critical patent/EP1120804A4/fr
Publication of WO2000021106A1 publication Critical patent/WO2000021106A1/fr

Links

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
    • 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
    • H01H33/60—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
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • H01H2001/5827—Laminated connections, i.e. the flexible conductor is composed of a plurality of thin flexible conducting layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • 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
    • H01H33/6606—Terminal 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
    • H01H33/60—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
    • H01H33/6664—Operating arrangements with pivoting movable contact structure

Definitions

  • the present invention relates to a vacuum switch and a vacuum switch gear using the same.
  • the present invention relates to a vacuum switch and a vacuum switch gear using the same, and more particularly to a vacuum switch suitable for a power receiving and distributing facility having both simplified structure and reliability, and a vacuum switch gear using the same.
  • the incoming transfer devices to achieve compact of, for example, SF S gas insulated Suitchigiya described in JP-A-3 273 804 is considered.
  • a circuit breaker, two disconnectors, and a grounding switch are individually manufactured and housed in a unit room and a bus room in which a distribution box is filled with insulating gas.
  • Power receiving equipment equipped with gas-insulated switch gears for example, receives power from a power company with a disconnector and gas circuit breaker, converts it to a voltage optimal for the load with a transformer, and supplies power to the load, such as a motor. ing.
  • To maintain and inspect the substation equipment turn off the gas circuit breaker, and then open the disconnector provided separately from the gas circuit breaker. Next, the residual charge and induced current are connected by grounding the grounding switch.
  • SF G gas being used as an insulating gas insulated switchgear is the direction of the global reduction of environmental impact. Therefore, I Suitsuchigiya was desired not use the SF E gas.
  • An object of the present invention is to provide a vacuum switch and a vacuum switch gear using the same without using an insulating gas, which is likely to have an adverse effect on the environment.
  • An object of the present invention is to provide a vacuum switch and a vacuum switch gear using the same.
  • Still another object of the present invention is to provide a vacuum switch that can maintain a part of the function without immediately shutting down the whole device even if a part of vacuum of the vacuum switch is broken, and a vacuum switch gear using the same. It is another object of the present invention to separately provide a vacuum switchgear having only a breaker portion and a vacuum switchgear having only a grounding device and a disconnector. Disclosure of the invention
  • the present invention relates to a vacuum insulating switch gear using a grounded vacuum switch.
  • a vacuum vessel that is hermetically sealed is equipped with a circuit breaker, disconnector, grounding device, and a bus connected to the outside of the vacuum vessel.
  • One end of the circuit breaker forms a movable electrode, and a fixed electrode is arranged so as to be in contact with and separate from the movable electrode.
  • the fixed electrode is connected to a power supply system.
  • a switch is a device that opens and closes a fixed electrode and a movable electrode
  • a switch gear includes one or more switching devices including a control gear and one of operation, measurement, protection, and adjustment devices.
  • the switch gear includes, in addition to the above-described structure, an assembly of these devices and devices further provided with an accessory and a support structure, and further includes a control unit that controls an operation mechanism.
  • the circuit breaker is used to quickly disconnect the ground fault or short-circuit point that has occurred in the power system, etc., from the system to prevent the equipment connected in series from being damaged by a large current or causing an accident.
  • the disconnector does not have the ability to cut off large currents, it is a device that opens and closes a charged electrical circuit.When disconnecting circuits or repairing or inspecting equipment, ensure that the disconnector is disconnected from the power supply. Used to Disconnectors range from low voltage to ultra-high voltage.
  • the grounding device is a switchgear that ensures safety by grounding the conductor in a no-voltage state during inspection and repair.
  • the breaker can shut off charging current, steady current, and abnormal current.
  • the disconnector can shut off charging current, but cannot shut off both steady current and abnormal current. Grounding equipment can be charged, steady, or abnormal. Current cannot be cut off.
  • the vacuum switch gear of the present invention has an opening / closing section incorporated in a vacuum vessel, and includes a circuit breaker, a grounding device, and a disconnector as the opening / closing section.
  • the vacuum vessel is divided into at least two chambers, and one of the chambers has And a grounding device and disconnector in one other room.
  • one end of the circuit breaker and the main circuit member (including the busbar and the connection device) communicating with the outside of the vacuum vessel are electrically connected by a flexible member, and / or one end of the grounding device. It is characterized by being electrically connected to one end of the disconnector with a flexible member.
  • the vacuum switch gear has at least two chambers in the end, but it can be divided into a product with only a breaker part and a product with a disconnector and a grounding device according to needs. That is, in this case, a vacuum container A circuit breaker, and one end of the circuit breaker and a main circuit member communicating outside the vacuum vessel are electrically connected with a flexible member to form a product as a vacuum circuit breaker.
  • One vacuum vessel is provided with a disconnector and a grounding device, and one end of the grounding device and one end of the disconnector are electrically connected with a flexible member.
  • the flexible member is formed by interposing a brazing material between a plurality of plate members, and after temporarily assembling the components, heating in a vacuum chamber to melt the brazing material and join the plate members. It is preferred to do so.
  • the flexible member is, for example, a flexible conductor made of a laminated plate material, but in the present application, a bellows or the like is also assumed.
  • a bushing shape is devised. That is, the switching unit is built in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnecting switch are provided as the switching unit.
  • the vacuum vessel is divided into at least two chambers, and one circuit breaker is grounded in one chamber and another chamber is grounded.
  • the main circuit conductor and the voltage detection conductor are projected outward in the vacuum chamber where the device and disconnector are installed, and the main circuit conductor is also projected in the vacuum chamber where the disconnector is installed.
  • Each conductor protrusion is a bushing covered with an electrically insulating member, and at least two of the bushings have the same shape.
  • this embodiment is even more effective if combined with the application of the flexible member described above.
  • the flexible member used in the present invention has strength enough to withstand the required current carrying capacity.
  • it is formed of oxygen-free copper.
  • the flexible member is preferably a flexible conductor in which a plurality of oxygen-free copper plates are stacked and both ends are caulked.
  • FIG. 1 is a perspective view showing one embodiment of a vacuum switch of the present invention.
  • FIG. 2 shows an embodiment of the vacuum switch gear according to the present invention, wherein (A) is a sectional side view in a state where a circuit breaker is “on”, a grounding device is “off”, and a disconnecting switch is “on”.
  • (B) is an upper partial sectional view in that state.
  • FIG. 3 shows an embodiment of the vacuum switch gear according to the present invention, wherein (A) is a sectional side view in the state of the circuit breaker “OFF”, the grounding device “OFF”, and the disconnecting switch “ON”.
  • the figure, (B) is an upper partial sectional view in that state.
  • FIG. 4 shows an embodiment of the vacuum switch gear of the present invention, wherein (A) is a side sectional view in a state of a circuit breaker “OFF”, a grounding device “ON”, and a disconnector “OFF”.
  • the figure, (B) is an upper partial sectional view in that state.
  • FIG. 5 shows an embodiment of the vacuum switch gear of the present invention, which is a three-phase case, where (A) shows a circuit breaker “ON”, a grounding device “OFF”, and a disconnector “ (B) is a top view in that state, and (C) is a bottom view in that state.
  • FIG. 6 shows an embodiment of the vacuum switch gear of the present invention, which is a three-phase case, in which the circuit breaker is “OFF”, the grounding device is “OFF”, and the disconnector is “ON”. Side sectional view.
  • Fig. 7 shows the outside of the flexible conductor used in the device shown in Figs. T / JP9 1
  • FIG. 1 shows a partial cross-sectional perspective view of one embodiment of the vacuum switch gear of the present invention. This embodiment illustrates a single-phase case.
  • the end parts such as the bus section, the feeder side, the cover, the stopper, and the like are omitted for convenience of explanation.
  • FIG. 2 is a plan half sectional view and a side sectional view of the apparatus of the present example, and FIG.
  • the vacuum chamber is divided into a first vacuum chamber 1 and a second vacuum chamber 2 by a partition wall 3.
  • the partition wall 3 is made of ceramic and is an electrical insulator.
  • Each vacuum chamber 1, 2 is such that the vacuum is maintained at 1 0- e ⁇ 1 0- 3 torr , an airtight Ke one single device side and (not shown) at the flange portion 4, 5 of each pushing Have been.
  • the flange portions 4 and 5 also serve as the end walls of the vacuum vessel and form these walls, and, like the partition wall 3, are made of a ceramic insulator.
  • a circuit breaker 6 is disposed in the first vacuum chamber 1 and a main circuit conductor 9 is also disposed, and each of them is formed to protrude above the casing.
  • the circuit breaker 6 has an operation rod 14 extending upward, and an upper portion of the main circuit conductor 9 is covered with epoxy resin to form a pushing 17.
  • the other end of the circuit breaker 6 has a movable electrode 12 at one end, and the other end is electrically connected to the main circuit conductor 9 by a flexible conductor 10.
  • Flexible conductor 10 is lower end of main circuit conductor 9 Are mechanically fastened with screws or the like.
  • the fixed-side electrode 13 is disposed so as to face the movable-side electrode 12, and the circuit breaker 6 is formed including the fixed-side electrode 13.
  • the arrow A in the figure indicates the direction of operation of the operating rod.
  • the cut-off portion is in the “ON” state as shown in FIG. 2 (that is, the fixed-side electrode 13 and the movable-side electrode 12 come into contact and become conductive. 3), and a cut-off portion “off” state as shown in FIG. 3 (that is, a state in which the operation rod 14 falls down and the movable electrode 12 is separated from the fixed electrode 13).
  • a vacuum measuring device 23, a gas adsorption tower 25, and an exhaust pipe 27 are provided on the casing upper surface of the first vacuum chamber 1. This operation rod operates when an accident current flows or when a disconnection command is issued from the operating device (when the breaker is intentionally switched off for maintenance, inspection, etc.).
  • an insulating plug 31 is arranged above the pushing 17, and the raw circuit conductor 9 bends from just before the plug 31 to reach the main circuit (bus). Rubber 34 covers the insulation from the bent portion to the busbar lead-out direction.
  • a CT current transformer 41 is placed around the pusher 17 and detects the current flowing through the live circuit, so that if an abnormal current flows, the circuit breaker can be cut off immediately. It is.
  • the end of the flexible conductor 10 is electrically connected to the voltage detection conductor 15, and the voltage detection conductor 15 is covered with the pushing 16.
  • the bushing 16, like the others, is made of an electrically insulating epoxy.
  • At the tip of the voltage detecting conductor 15, three capacitors 32 are arranged in series in this example. Further outside of the pushing 16 is covered with an insulating rubber 33.
  • a magnet 40 is arranged around the vacuum degree measuring device 23 in a ring shape.
  • An arc prevention cover 4 is provided near the breaker 6 side connection of the flexible conductor 10 and an arc prevention cover 4 4 is provided also around the connection 4 4.
  • An arc prevention cover 4 3 is provided in half so as to force much of the lower inner wall. It is provided in a columnar shape.
  • the partition wall 3 is attached to the inner wall of the casing 44 with a fixture 36.
  • a grounding device 7, a disconnector 8, and a vacuum vessel end wall 5 are arranged in this order from the partition wall 3 side, and furthermore, a pushing is performed outside the end.
  • the grounding device 7 has a part that moves in the direction of arrow B, that is, moves up and down, and a movable electrode 20 is formed at the lower end thereof.
  • a fixed-side electrode 19 is disposed in opposition to the fixed-side electrode 19, and an electrical connection portion 45 between the fixed-side electrode 19 and the fixed-side electrode 13 of the circuit breaker 6 penetrates through the partition wall 3 to electrically connect the fixed-side electrode 19 to the fixed-side electrode 13.
  • the grounding device 7 is moved up and down as indicated by arrow B to perform grounding by contact between the fixed-side electrode 19 and the movable-side electrode 20, and to release grounding by separation.
  • the concept of the grounding device 7 includes the fixed electrode 13.
  • the disconnector 8 also has a portion that moves up and down in the direction of arrow C.
  • the lower end of the vertically moving part forms a movable-side electrode 21, and a fixed-side electrode 22 is provided opposite to the movable-side electrode 21.
  • the fixed electrode 19 of the grounding device 7 and the movable electrode 21 of the disconnector 8 are connected by a flexible conductor 11.
  • the fixed-side electrode 22 is connected to the main circuit conductor 47 at an electrical connection section 46, and is connected to the main circuit conductor 48 (bus) via the main circuit conductor 47.
  • FIG. 4 illustrates a series of conduction relations.
  • the movable section electrode 12 of the blocking section 6 is separated from the fixed side electrode 13, so that the blocking section is in the “off” state.
  • the movable side of the cutoff section 6 is connected to the main circuit conductor 9 and the voltage detection conductor 15 via the flexible conductor 10.
  • the grounding device 7 is in a grounded state because the movable electrode 20 is in contact with the fixed electrode 19, and the disconnector 8 has sufficient contact between the movable electrode 21 and the fixed electrode 22 for disconnection. It is in a disconnected state because it is taking a distance.
  • the fixed-side electrode 22 reaches the bus as described above.
  • a vacuum measuring device 24 On the upper surface of the casing of the second vacuum chamber 2, a vacuum measuring device 24, a gas adsorption tower
  • Reference numeral 29 denotes an insulating ceramic body. Magnets 39 are arranged in a ring around the vacuum measuring device 24. Rubbers 35 are provided around the pushing 18 to provide further insulation measures.
  • 37 and 38 are air, that is, an outside air circulation part.
  • the bushing 16 and the pushing 18 are fixed to the casing at the flange portions 4 and 5, respectively, by screws or the like. Both are the same in their dimensions, shape and material, that is, they are common parts.
  • the shape of the tip of pusher 17 (excluding the portion corresponding to the flange position) is the same as pushers 16 and 18 in both dimensions. In this way, cost can be reduced by sharing parts. This makes it possible to change the arrangement of the bus, feeder, and voltage detector according to customer needs.
  • the ceramic body 30 is used to insulate the vacuum vessel so that no current flows when a current is applied from the ground side to check the cable withstand voltage.
  • the vacuum degree measuring devices 23 and 24 use the magnetron principle.
  • the magnets 39, 40 are ancillary equipment for this purpose, which are arranged in a pipe shape and apply a magnetic field when measuring vacuum.
  • the vacuum degree of each vacuum vessel 1 and 2 is made airtight so that it can be maintained for more than 20 years under normal use environment.
  • the grounding device 7 and disconnector 8 are operated by a separate operating device from the circuit breaker 6.
  • the gas adsorption towers 25 and 26 are also called getters.
  • the exhaust pipes 27 and 28 are used for evacuation or recovery.
  • the vacuum in one of the vacuum chambers will be broken Even if this happens, the other vacuum chamber is kept in a vacuum, so that the situation that the entire apparatus immediately goes down is avoided. Also, assuming product distribution, the unit of the first vacuum chamber 1 and the unit of the second vacuum chamber are separately manufactured and installed, or replaced with existing equivalent parts, or both are assembled and combined on site It is also effective.
  • the device of this example is assembled in a vacuum, and the brazing work is performed by placing the device temporarily assembled outside in a furnace, heating in a vacuum, melting the brazing, and joining in place to form a product.
  • the joining of the ceramic body and the vacuum vessel is all brazed, and the plate materials of the flexible conductors 10 and 11 described below are also brazed.
  • the lower part of the main circuit conductor 9 and the voltage detection conductor 15 are electrically connected by the flexible conductor 10, which is a flexible conductor 10 extending from the circuit breaker 6.
  • the flexible conductor 10 is a flexible conductor 10 extending from the circuit breaker 6.
  • the connection with the conductor for the main circuit leading to the conductor for voltage detection does not have to use a flexible conductor. This is because they are in a fixed relationship and there is no need to keep them flexible.
  • the electrical connection 46 need not be a flexible conductor.
  • Fig. 7 shows an example of the appearance of a flexible conductor.
  • the flexible conductors 10 and 11 are formed by laminating a plurality of oxygen-free copper plates, interposing a brazing material between the plates, and brazing both ends as shown in FIG.
  • This brazing portion 49 becomes a place to be attached to each electrode or conductor.
  • the conductor 10 has a length of 120 to 13 Omni, a width of 3 Omm, and a thickness of 0.1 mm. 50 plates of the same dimensions as the other conductors 10 are stacked in a stack of 0 to 70, that is, the conductors 10 that follow the rotation operation are longer.
  • the vacuum chamber is divided into two chambers, a circuit breaker whose opening and closing part is hermetically sealed in one vacuum chamber, and a disconnector and a grounding device whose opening and closing part is hermetically sealed in the other vacuum chamber.
  • the vacuum switch composed of a vacuum switch and a vacuum switch or a vacuum container composed of a circuit breaker with an open / close section hermetically sealed inside the vacuum vessel, and an open / close section inside the vacuum vessel
  • a vacuum switch composed of a disconnecting device and a grounding device sealed in a box is also conceivable.
  • the same flexible member as in the previous example is used for the electrical connection between the main circuit and the open / close section or the electrical connection between the open / close section.
  • 100 is a metal storage container.
  • the storage container 100 contains the vacuum switch 101 for three phases U, V, and W.
  • the vacuum switch 101 has the same configuration as that of the above-described embodiment for all three phases, and includes a circuit breaker 6 having a breaking function, a grounding device 7 having a grounding function, and a disconnector 8 having a disconnecting function. I have.
  • a vacuum circuit conductor (bus) 48 is electrically connected to one end of the vacuum switch 101, and a main circuit conductor 9 is electrically connected to the other end.
  • operation compartments 102, 103, 104 containing operation mechanisms of the circuit breaker 6, the grounding device 7, and the disconnector 8, respectively.
  • a protection controller 105 that gives control commands to each operating mechanism is housed.
  • Each operating mechanism operates the circuit breaker 6, the grounding device 7, and the disconnecting switch 8 in three phases collectively.
  • the operation components 102, 103, 104 and the protection control device 105 are arranged in the space above the main circuit conductor 48 of the vacuum switch 101.
  • the vacuum switch gear is composed of the storage container 100, the vacuum switch 101, three phases, the main circuit conductors 9, 48, and the operation components 102, 103, 1 0 4 and a protection control device 105.
  • the vacuum switch of this invention and the vacuum switch gear using the same have the effect that it is excellent in environmental compatibility and also achieves miniaturization.
  • one of them is reliable in that one of them maintains the vacuum even if the vacuum in one chamber is broken.
  • a product form that meets the needs can be realized in that the vacuum can be reduced only for the amount, and it is economical.
  • the application of a flexible member to the circuit breaker contributes to the compactness of the device, despite the fact that the rotation and the conduction of the switching mechanism can be steadily performed, contributing to the compactness of the device.
  • the application of flexible members also provides continuity and compactness.

Landscapes

  • Gas-Insulated Switchgears (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un commutateur à vide destiné à un matériel de réception et de distribution d'énergie dans lequel la simplification et la fiabilité d'une structure sont rendues mutuellement compatibles; et un appareillage de commutation comportant le commutateur et dans lequel les éléments d'ouverture et de fermeture sont réunis dans un récipient à vide, un disjoncteur, un dispositif de mise à la terre et un commutateur de mise hors service comportant chacun un élément d'ouverture et de fermeture. Le récipient à vide est séparé au moins en deux compartiments et l'élément d'ouverture et de fermeture du disjoncteur se trouve dans un compartiment, les éléments d'ouverture et de fermeture du dispositif de mise à la terre et du sectionneur se trouvant dans l'autre compartiment.
PCT/JP1999/004116 1998-10-05 1999-07-30 Commutateur a vide et appareillage de commutation a vide comportant le commutateur WO2000021106A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99933192A EP1120804A4 (fr) 1998-10-05 1999-07-30 Commutateur a vide et appareillage de commutation a vide comportant le commutateur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10/282201 1998-10-05
JP28220198 1998-10-05

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US09463329 A-371-Of-International 2000-01-24
US10/022,237 Division US20020043515A1 (en) 1998-10-05 2001-12-20 Vacuum switch and vacuum switchgear using the same

Publications (1)

Publication Number Publication Date
WO2000021106A1 true WO2000021106A1 (fr) 2000-04-13

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ID=17649394

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/004116 WO2000021106A1 (fr) 1998-10-05 1999-07-30 Commutateur a vide et appareillage de commutation a vide comportant le commutateur

Country Status (4)

Country Link
EP (1) EP1120804A4 (fr)
KR (1) KR100370485B1 (fr)
CN (1) CN1273685A (fr)
WO (1) WO2000021106A1 (fr)

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JP2006309944A (ja) * 2005-04-26 2006-11-09 Hitachi Ltd 真空スイッチ

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JP4352050B2 (ja) * 2003-12-19 2009-10-28 三菱電機株式会社 断路器
JP4841875B2 (ja) * 2005-06-29 2011-12-21 株式会社日立製作所 真空絶縁スイッチギヤ
US7724489B2 (en) * 2007-08-18 2010-05-25 Ema Electromecanica S.A. Circuit breaker with high speed mechanically-interlocked grounding switch
FR2933529B1 (fr) * 2008-07-07 2010-09-03 Areva T & D Ag Dispositif de sectionnement pour separer ou connecter deux parties d'un circuit electrique parmi lesquelles un transformateur de tension
KR101100710B1 (ko) * 2010-06-11 2011-12-30 엘에스산전 주식회사 지중배전 선로용 차단기
EP3896711B1 (fr) * 2020-04-14 2023-07-26 Siemens Aktiengesellschaft Protection diélectrique pour un dispositif de commutation

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JPS61277125A (ja) * 1985-05-31 1986-12-08 株式会社東芝 複合形ハイブリツド開閉装置
JPH0433237U (fr) * 1990-07-16 1992-03-18
JPH05336628A (ja) * 1992-03-31 1993-12-17 Toshiba Corp 受電設備
JPH0654418A (ja) * 1992-07-24 1994-02-25 Toshiba Corp スイッチギヤ

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JPS59128142U (ja) * 1983-02-14 1984-08-29 株式会社東芝 真空開閉器
JPS61277125A (ja) * 1985-05-31 1986-12-08 株式会社東芝 複合形ハイブリツド開閉装置
JPH0433237U (fr) * 1990-07-16 1992-03-18
JPH05336628A (ja) * 1992-03-31 1993-12-17 Toshiba Corp 受電設備
JPH0654418A (ja) * 1992-07-24 1994-02-25 Toshiba Corp スイッチギヤ

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* Cited by examiner, † Cited by third party
Title
See also references of EP1120804A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006309944A (ja) * 2005-04-26 2006-11-09 Hitachi Ltd 真空スイッチ

Also Published As

Publication number Publication date
KR20010030668A (ko) 2001-04-16
EP1120804A1 (fr) 2001-08-01
CN1273685A (zh) 2000-11-15
EP1120804A4 (fr) 2004-03-17
KR100370485B1 (ko) 2003-01-29

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