WO2000021106A1 - Vacuum switch and vacuum switchgear using the switch - Google Patents

Vacuum switch and vacuum switchgear using the switch 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
French (fr)
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/en
Publication of WO2000021106A1 publication Critical patent/WO2000021106A1/en

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

A vacuum switch suitable for a power receiving and distributing equipment in which the simplification and reliability of a structure is made compatible with each other, and a vacuum switchgear using the switch, wherein opening and closing parts are assembled in a vacuum container, a breaker, an earthing device, and a disconnecting switch each having an opening and closing part are provided, the vacuum container is divided at least into two chambers, and the opening and closing part of the breaker is installed in one chamber and the opening and closing parts of the earth device and disconnect switch are installed in the other chamber.

Description

明 細 書  Specification
真空スィツチ及びそれを用いた真空スィツチギヤ 技術分野  TECHNICAL FIELD The present invention relates to a vacuum switch and a vacuum switch gear using the same.
本発明は真空スィツチ及びそれを用いた真空スィツチギヤに係り、 特 に構造の簡単化と信頼性を両立させた受配電設備に好適な真空スィツチ 及びそれを用いた真空スィツチギヤに関する。 背景技術  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. Background art
都市部の集中地域において増加する消費電力需要に対しては、 配電用 変電所の立地困難への対処， 配電線用配管の配置余裕なしへの対処及び 高い供給設備稼働率化の要求等の課題がある。 これらの課題を解決する ためには、 配電電圧の昇圧、 即ち回線当たりの容量が大きい電圧系統に 積極的に負荷を吸収させることが必要である。 配電電圧の昇圧は効率的 な電力供給設備形成に繋がる。 このためには配電器材や受変電設備の更 なるコンパク ト化を図る必要がある。  In response to increasing power demand in urbanized areas, there are issues such as addressing difficulties in locating distribution substations, addressing the need for extra space for distribution line piping, and demanding higher supply equipment availability. There is. In order to solve these issues, it is necessary to boost the distribution voltage, that is, to actively absorb the load in a voltage system with a large capacity per line. Increasing the distribution voltage will lead to the formation of efficient power supply facilities. For this purpose, it is necessary to further reduce the distribution equipment and substation equipment.
コンパク ト化を図る受変電機器としては、 例えば特開平 3— 273804 号 公報に記載された S F S ガス絶縁スィッチギヤが考えられる。 このスィ ツチギヤは配電函に絶縁ガスを充填したュニッ 卜室及び母線室に、 遮断 器， 2個の断路器及び接地開閉器を個別に製作して収納している。 ガス絶縁スィッチギヤを備えた受電設備は、 例えば、 電力会社からの 電力を断路器とガス遮断器等で受電し、 変圧器で負荷に最適な電圧に変 え、 負荷例えばモータ等に電力を供給している。 受変電機器を保守， 点 検するには、 ガス遮断器を切後、 ガス遮断器とは別に設けた断路器を開 放する。 次に接地開閉器を接地することにより残留電荷， 誘導電流を接 CT J / The incoming transfer devices to achieve compact of, for example, SF S gas insulated Suitchigiya described in JP-A-3 273 804 is considered. In this switchgear, 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. CT J /
地に流し、 かつ、 電源からの再印加を防止して、 作業者の安全を守って いる。 また、 母線が充電されたまま接地開閉器を接地すると事故に繋が るので、 断路器と接地開閉器との間にはィンターロックを設けている。 絶縁開閉装置の絶縁ガスとして使用されている S F G ガスは環境への 影響から世界的に削減の方向である。 このため、 S F E ガスを使用しな ぃスィツチギヤが望まれた。 It flows down to the ground and prevents reapplication from the power supply, protecting the safety of workers. In addition, if the grounding switch is grounded while the bus is charged, an accident may occur. Therefore, an interlock is provided between the disconnecting switch and 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.
本発明の目的は、 環境への影響が懸念される絶縁ガスを用いないで済 む真空スィッチ及びそれを用いた真空スィツチギヤを提供することにあ リ、 また他の目的は、 大幅に小型化した真空スィッチ及びそれを用いた 真空スィツチギヤを提供することにある。  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.
更に他の本発明の目的は、 真空スィツチの一部の真空が破れても装置 全体は直ぐにはダウンせず一部機能を維持し得る真空スィツチ及びそれ を用いた真空スィッチギヤを提供することにあり、 また他の目的は、 遮 断器部分のみの真空開閉装置や、 接地装置及び断路器による部分のみの 真空開閉装置を各別に提供することにある。 発明の開示  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
本発明は、 接地された真空スィツチを用いた真空絶縁スィツチギヤに 関する。 具体的には、 気密にシールされた真空容器に遮断器， 断路器， 接地装置並びに真空容器外と接続される母線を備える。 遮断器の一端は 可動電極を形成し、 この可動電極と接離するように固定電極が配置され ている。 固定電極は電源系統に接続される。  The present invention relates to a vacuum insulating switch gear using a grounded vacuum switch. Specifically, 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.
本明細書において、 スィッチとは、 固定電極と可動電極の開閉を行う 機器であり、 スィッチギヤとは、 コントロールギヤを含み、 1つ以上の 開閉機器と操作， 測定， 保護及び調整の器具の 1つ以上並びに内部接続 P In this specification, a switch is a device that opens and closes a fixed electrode and a movable electrode, and a switch gear includes one or more switching devices including a control gear and one of operation, measurement, protection, and adjustment devices. Above and internal connection P
を組み合わせ、 それらを閉鎖箱に収容した物である。 更に本明細書にお いてスィッチギヤは、 上記の構造物の他、 更に付属物及び支持構造物を 備えたこれらの機器， 装置の集合体を含み、 更には操作機構を制御する 制御部を含む。 And housed them in a closed box. Further, in this specification, 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.
尚、 本願において遮断器は、 電力系統等に生じた地絡， 短絡箇所を速 やかに系統から切り離すことにより、 直列に接続されている機器の大電 流による破壊や事故を生じた機器のアークによる損傷を防ぐために用い られる開閉機器である。 また、 断路器は、 大電流の遮断能力はないもの の、 充電された電路の開閉を行う機器であって、 回路の接続変更や機器 の修理点検の際、 電源からの切リ離しを確実にするために用いられる。 断路器は、 低電圧用から超高電圧用まである。 更に接地装置は点検修理 時等に無電圧状態の導体を接地し、 安全を確保する開閉機器である。 遮 断器は充電電流， 定常電流， 異常電流共に遮断可能であり、 断路器は充 電電流なら遮断可能だが定常電流， 異常電流共に遮断不可能であり、 接 地装置は充電， 定常， 異常いずれの電流も遮断不可能である。  In the present application, 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. A switchgear used to prevent damage due to arcing. Although 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. In addition, 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.
本発明の真空スィツチギヤは、 開閉部を真空容器に組み込んでなり、 開閉部として遮断器， 接地装置， 断路器を具備し、 真空容器を少なく と も 2室に分けて、 その 1室に遮断器を、 他の 1室に接地装置及び断路器 を設けたものである。 そして遮断器の一端と真空容器外へ通じる主回路 用部材 （母線及び接続器具を含む） とは可撓性部材をもって電気的に接 続されていることを特徴とし、 及び 又は接地装置の一端と断路器の一 端とは可撓性部材をもって電気的に接続されていることを特徴とする。 尚、 真空スィツチギヤは最終的には少なく とも 2室形成にすることが 好ましいが、 ニーズに合わせて遮断器部分のみの製品と断路器及び接地 装置の部分の製品とに分けても差し支えない。 即ちこの場合は真空容器 に遮断器を備え、 遮断器の一端と真空容器外へ通じる主回路用部材とを 可撓性部材をもって電気的に接続してなる真空遮断器としての製品にな り、 また、 一方の製品は、 1つの真空容器に断路器と接地装置を備え、 接地装置の一端と断路器の一端とは可撓性部材をもって電気的に接続さ れていることになる。 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. And 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. In addition, it is preferable that 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.
尚、 これらの製品を別々に製造， 据え付けするのは勿論のこと、 個別 に入手した物同士を組み合わせ、 或いは既存設備に接続することも本発 明の範囲である。 更に本発明の真空スィッチギヤ， 真空遮断器， 電気設 備では、 これらを炉外で仮組みしてから真空容器 （バルブ） 及びその内 部部品が真空室内で加熱してロウ付けし組み立てることが好ましい。 例 えば、 可撓性部材は複数の板状部材間にロウ材を介在させて構成し、 各 部品を仮組み立てした後に真空室中で加熱してロウ材を溶かして板状部 材間を接合することが好適である。 ここで、 可撓性部材は例えば板材積 層物によるフレキシブル導体を示したが、 本願ではべローズ等も想定し ている。  It is within the scope of the present invention not only to manufacture and install these products separately, but also to combine individually obtained products or connect them to existing facilities. Further, in the vacuum switch gear, the vacuum circuit breaker, and the electrical equipment of the present invention, it is preferable to temporarily assemble these outside the furnace, and then heat and braze the vacuum vessel (valve) and its internal parts in a vacuum chamber to assemble. . For example, 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. Here, 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.
更に他の本発明の態様ではブッシング形状の工夫も行っている。 即ち 開閉部を真空容器に組み込んでなり、 開閉部として遮断器， 接地装置， 断路器を具備し、 真空容器を少なく とも 2室に分け、 その 1室に遮断器 を、 他の 1室に接地装置及び断路器を設け、 遮断器を設けた真空室には 主回路用導体と電圧検出用導体を外方へ突出させ、 断路器を設けた真空 室にも主回路用導体を突出させて、 各導体突出部は電気絶縁部材で覆つ たブッシングとし、 このブッシングの内少なく とも 2つは同一形状とす るものである。 勿論この態様は前記の可撓性部材の適用と組み合わせた なら尚更有効である。  In still another embodiment of the present invention, 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. Of course, this embodiment is even more effective if combined with the application of the flexible member described above.
ここで本発明に用いる可撓性部材は、 必要通電容量に耐える強度を備 え無酸素銅にて形成されてなることが好ましい。 更にはこの可撓性部材 は、 無酸素銅板を複数枚重ねて両端をかしめたフレキシブル導体である ことが好ましい。 Here, the flexible member used in the present invention has strength enough to withstand the required current carrying capacity. Preferably, it is formed of oxygen-free copper. Further, the flexible member is preferably a flexible conductor in which a plurality of oxygen-free copper plates are stacked and both ends are caulked.
尚、 性能を確保するためには、 真空度は 1 0— e〜l 0 _3 torr必要であ る。 図面の簡単な説明 In order to ensure the performance, the degree of vacuum 1 0- e to l Ru 0 _ 3 torr required der. BRIEF DESCRIPTION OF THE FIGURES
第 1 図は、 本発明の真空スィツチの一実施の形態を示す斜視図。  FIG. 1 is a perspective view showing one embodiment of a vacuum switch of the present invention.
第 2図は、 本発明の真空スィツチギヤの一実施の形態を示すものであ り、 （A ) は遮断器 「入」 ， 接地装置 「切」 ， 断路器 「入」 の状態にお ける側断面図、 （B ) はその状態における上部分断面図。  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”. The figure, (B) is an upper partial sectional view in that state.
第 3図は、 本発明の真空スィツチギヤの一実施の形態を示すものであ り、 （A ) は遮断器 「切」 ， 接地装置 「切」 ， 断路器 「入」 の状態にお ける側断面図、 （B ) はその状態における上部分断面図。  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.
第 4図は、 本発明の真空スィツチギヤの一実施の形態を示すものであ り、 （A ) は遮断器 「切」 ， 接地装置 「入」 ， 断路器 「切」 の状態にお ける側断面図、 （B ) はその状態における上部分断面図。  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.
第 5図は、 本発明の真空スィツチギヤの一実施の形態を示すものであ リ、 3相の場合であって、 （A ) は遮断器 「入」 ， 接地装置 「切」 ， 断 路器 「入」 の状態における側断面図、 （B ) はその状態における上面図、 ( C ) はその状態における底面図。  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.
第 6図は、 本発明の真空スィツチギヤの一実施の形態を示すものであ り、 3相の場合であって、 遮断器 「切」 ， 接地装置 「切」 ， 断路器 「入」 の状態における側断面図。  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.
第 7図は、 第 1 図〜第 6図の装置に用いられるフレキシブル導体の外 T/JP9 1 Fig. 7 shows the outside of the flexible conductor used in the device shown in Figs. T / JP9 1
観を示す斜視図。 発明を実施するための最良の形態 The perspective view which shows a view. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明の実施例につき、 図面を参照しながら説明する。 第 1 図 には本発明の真空スィッチギヤの一実施例に係る部分断面斜視図を示す 本例は一相の場合を例示している。 尚、 第 1図では母線部やフィーダ側, カバ一類， 栓等の端部パーツは説明簡単化の便宜上省略してある。 更に 第 2図は本例装置の平面半断面図及び側断面図であり、 本図は遮断部 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 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. In FIG. 1, the end parts such as the bus section, the feeder side, the cover, the stopper, and the like are omitted for convenience of explanation. Further, FIG. 2 is a plan half sectional view and a side sectional view of the apparatus of the present example, and FIG.
「入」 ， 断路部 「入」 ， 接地部 「切」 状態を示している。 第 3図もこれ に準じるが遮断部 「切」 ， 断路部 「入」 ， 接続部 「切」 状態を示してい る。 更に第 4図も同様であるが本図は遮断部 「切」 ， 断路部 「切」 ， 接 地部 「入」 状態を示している。 The status is “ON”, disconnecting part “ON”, and ground part “OFF”. Figure 3 follows this, but shows the state of the disconnection part “OFF”, the disconnection part “ON”, and the connection part “OFF”. The same applies to Fig. 4, but this figure shows the cut-off part "OFF", disconnection part "OFF", and grounding part "ON".
先ず本実施例装置は真空室を仕切壁 3にて第 1真空室 1 と第 2真空室 2に区画している。 仕切壁 3はセラミック製であって電気的絶縁体であ る。 各真空室 1， 2は真空度が 1 0— e〜 1 0— 3 torrに維持されるよう、 装置側面のケ一シング （図示省略） と各プッシングのフランジ部 4， 5 にて気密に構成されている。 即ちフランジ部 4， 5が真空容器端部壁を 兼用しこれらの壁を形成しており、 仕切壁 3 と同じくセラミック製の絶 縁体となっている。 First, in the apparatus of this embodiment, 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. In other words, 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.
第 1真空室 1 内には遮断器 6が配置され、 主回路用導体 9も配置され ていて夫々ケ一シングの上方へ突出形成されている。 遮断器 6は上方へ 操作ロッ ド 1 4が延び、 主回路用導体 9の上部はエポキシ樹脂で覆われ プッシング 1 7 を形成している。 遮断器 6の他方には一端に可動側電極 1 2が形成され、 他端はフレキシブル導体 1 0にて主回路用導体 9 と電 気的に接続されている。 フレキシブル導体 1 0は主回路用導体 9の下端 にネジ等にて機械的に締結されている。 可動側電極 1 2に対向して固定 側電極 1 3が配置されており、 この固定側電極 1 3も含めて遮断器 6が 形成されている。 図中の矢印 Aは操作ロッ ドの動作方向を示しており、 この動きに従って第 2図の如き遮断部 「入」 状態 （即ち固定側電極 1 3 と可動側電極 1 2が接触し導通している状態） ， 第 3図の如き遮断部 「切」 状態 （即ち操作ロッ ド 1 4が倒れて可動側電極 1 2が固定側電極 1 3から離れた状態） を形成する。 第 1真空室 1 のケ一シング上面には 真空度測定器 2 3， ガス吸着塔 2 5， 排気管 2 7が付設されている。 こ の操作ロッ ドは、 事故電流が流れたときや操作機で切り指令を出した際 (保守 · 点検等で故意に遮断器を切る場合） に動作する。 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. According to this movement, 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.).
プッシング 1 7の更に上方には絶縁用の栓 3 1が配置され、 生回路用 導体 9はこの栓 3 1の手前より屈曲して主回路 （母線） に至る。 この屈 曲部から母線引出方向にかけては絶縁のためにゴム 3 4が覆っている。 プッシング 1 7の周囲には C T変流器 4 1が配置され、 この C T変流器 1 は、 生回路を流れる電流を検出し、 異常電流が流れた場合に直ちに 遮断器がきれるようにするものである。  Further, 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.
フレキシブル導体 1 0の末端は電圧検出用導体 1 5に電気的に接続さ れ、 この電圧検出用導体 1 5はプッシング 1 6で覆われている。 ブッシ ング 1 6は他のそれと同様、 電気的絶縁性のあるエポキシ製である。 電 圧検出用導体 1 5の先端にはコンデンサ 3 2が本例では 3つ直列に配置 されている。 プッシング 1 6の更に外側は絶縁ゴム 3 3が覆つている。 真空度測定器 2 3の周囲にはマグネッ 卜 4 0がリング状に配置されて いる。 フレキシブル導体 1 0の遮断器 6側接続部近傍はアーク防止カバ — 4 2が設けられ、 更にその周囲にもケ一シング 4 4下方内壁の多く を 力パーするようにアーク防止カバー 4 3が半円柱状に設けられている。 仕切壁 3は取付具 3 6 をもってケーシング 4 4内壁に取り付けられてい る。 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.
第 2真空室 2には仕切壁 3側より順次、 接地装置 7， 断路器 8， 真空 容器端部壁 5 (即ちプッシング 1 8のフランジ部） が配置され、 更にそ の端部外方にプッシング 1 8が設けられている。 接地装置 7は矢印 B方 向即ち上下動する仕組みの部分を備え、 その下端に可動側電極 2 0が形 成されている。 またこれに対向して固定側電極 1 9が配置されており、 固定側電極 1 9 と遮断器 6の固定側電極 1 3 とは電気的接続部 4 5が仕 切壁 3 を貫通して電気的に接続されている。 接地装置 7は矢印 Bの如き 上下動にて固定側電極 1 9 と可動側電極 2 0の接触による接地， 離間に よる接地解除が行われる。 接地装置 7は固定側電極 1 3を含んでいる概 念である。  In the second vacuum chamber 2, a grounding device 7, a disconnector 8, and a vacuum vessel end wall 5 (that is, a flange portion of the pushing 18) are arranged in this order from the partition wall 3 side, and furthermore, a pushing is performed outside the end. There are 18 provided. 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. Also, 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. Connected. 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.
断路器 8も矢印 C方向に上下動する部分を備える。 上下動部分の下端 は可動側電極 2 1 を形成しており、 これに対向して固定側電極 2 2が設 けられていて、 上下動 Cにより断路状態か否かが決まる。 接地装置 7の 固定側電極 1 9 と断路器 8の可動側電極 2 1 とはフレキシブル導体 1 1 にて接続されている。 固定側電極 2 2は主回路用導体 4 7 と電気的接続 部 4 6にて接続され、 主回路用導体 4 7 を介し主回路用導体 4 8 (母線） へ接続されている。  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.
一連の導通関係を第 4図にて説明すれば、 この第 4図の状態では遮断 部 6の可動側電極 1 2が固定側電極 1 3 と離れているので遮断部 「切」 状態である。 尚、 遮断部 6の可動側はフレキシブル導体 1 0を介して主 回路用導体 9及び電圧検出用導体 1 5に接続された状態である。 次に接 地装置 7は可動側電極 2 0が固定側電極 1 9 と接しているので接地状態 であり、 断路器 8では可動側電極 2 1 と固定側電極 2 2が断路に十分な 距離をとつているので断路状態である。 尚、 固定側電極 2 2が母線へ至 ることは前述の通りである。 FIG. 4 illustrates a series of conduction relations. In the state of FIG. 4, 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. It is to be noted that 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. Next, 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. Note that the fixed-side electrode 22 reaches the bus as described above.
第 2真空室 2のケーシング上面には真空度測定器 2 4， ガス吸着塔 On the upper surface of the casing of the second vacuum chamber 2, a vacuum measuring device 24, a gas adsorption tower
2 6， 排気管 2 8が付設されている。 2 9は絶縁用セラミック体である 真空測定器 2 4の周囲にはマグネッ 卜 3 9がリング状に配置されている プッシング 1 8の周囲はゴム 3 5で更に絶縁対策が講じられている。26 and exhaust pipe 28 are provided. 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.
3 7， 3 8は空気つまり外気流通部である。 37 and 38 are air, that is, an outside air circulation part.
ブッシング 1 6 とプッシング 1 8は夫々そのフランジ部 4， 5にてケ 一シングへネジ止め等で固定されている。 両者はその寸法形状や材質に おいて同じであり、 つまり共通部品である。 またプッシング 1 7はその 先端形状 （フランジ位置相当部を除いた部分） が寸法共にプッシング 1 6， 1 8 と同じである。 このようにパーツの共通化を図ることによつ てコス ト低減が図れる。 これにより、 顧客ニーズによって母線部， フィ —ダ部， 電圧検出部の配置を変更することが可能となる。  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.
セラミック体 3 0は接地側から電流を流してケーブル耐圧を調べる際、 真空容器に電流が流れないように絶縁をとるためのものである。  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.
真空度測定器 2 3， 2 4はマグネ 卜ロン原理を利用している。 マグネ ッ 卜 3 9， 4 0はそのための付帯設備であってパイプ状に配置され、 真 空度測定時に磁場をかけるものである。 但し各真空容器 1， 2の真空度 は通常の使用環境下においては 2 0年以上保持されるように、 気密に製 造される。  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. However, 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.
接地装置 7や断路器 8は遮断器 6 とは別の操作機によつて動作する。 ガス吸着塔 2 5， 2 6はゲッタ一とも呼ぶ。 排気管 2 7， 2 8は真空 引きつまり リカパリ一用である。  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.
本例のように真空室が 2室あると一方の部屋の真空室の真空が万一壊 れても他方の真空室は真空を保っているので直ちに装置全体がダウンす るという事態は免れる。 また製品流通を想定すれば、 第 1真空室 1 の単 位と第 2真空室の単位を各別に製造， 据え付けし、 或いは既存の相当部 に置き換えたり、 両者を現地で組み立てて結合したりすることも有効で ある。 If there are two vacuum chambers as in this example, 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.
本例の装置は真空中で組み立てられ、 ロウ付け作業は外で仮組みした 状態のものを炉に入れて、 真空中で加熱し、 ロウを溶かして適所接合し 製品となす。 セラミック体と真空容器の接合は全てロウ付けであり、 以 下に述べるフレキシブル導体 1 0， 1 1の構成板材同士もロウ付けであ る。  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.
本例装置ではフレキシブル導体 1 0， 1 1 を用いたが、 これにより動 作中でも導通は確実に行えるし、 回転動作でも上下動作でも確実に電気 が流せるから構造が簡単になる。 また、 フレキシブル導体 1 0， 1 1 に は電気が流れるので真空容器外にもっていくと、 その部分を新たに SFe ガスや固体絶縁物で覆う等して絶縁しなければ危険である。 従って、 同 じ真空容器内に設置すれば安全性も確保でき、 装置もコンパク 卜になる t フレキシブル導体 1 0， 1 1 の通電面積は少なく とも 2 0 O mni2 、 必 要通電容量は 2 5 k Aで 1秒持つ強度が望ましい。 Although the flexible conductors 10 and 11 are used in this example, conduction can be ensured even during operation, and electricity can flow reliably both during rotation and up and down, thus simplifying the structure. In addition, since electricity flows through the flexible conductors 10 and 11, it is dangerous to take it outside the vacuum vessel unless it is newly insulated by covering it with new SFe gas or solid insulator. Therefore, if placed in the same vacuum chamber can be ensured even safety device t flexible conductor 1 0 also becomes compact Bok, 1 1 of the energizing area at least 2 0 O mni 2, required current carrying capacity is 2 5 An intensity of 1 second at kA is desirable.
尚、 本例では主回路用導体 9の下方と電圧検出用導体 1 5 とはフレキ シブル導体 1 0にて電気的に接続しているが、 これは遮断器 6から延び てきたフレキシブル導体 1 0の途中を主回路用導体 9にて固定した余り の部分の有効利用である。 よって電圧検出用導体に至る主回路用導体と の接続はフレキシブル導体を用いずとも差し支えない。 両者固定関係に あり、 フレキシブルにしておく必然性はないからである。 同様にして電 気的接続部 4 6はフレキシブル導体である必要はない。 フレキシブル導体の外観を図 7に例示する。 本例に係るフレキシブル 導体 1 0， 1 1 は無酸素銅の板を複数枚積層し、 各板の間にロウ材を介 在させてあり、 第 7図のように両端をろう付けしてある。 このろう付部 4 9が各電極や導体への取リ付け個所となる。 導体 1 0の方は長さが 1 2 0〜 1 3 O mni, 幅が 3 O mm， 厚さ 0 . 1 mm の板を Ί 0枚重ねてあリ , 導体 1 1 の方は長さ 6 0〜7 0皿他導体 1 0と同寸法の板を 5 0枚重ね てあつて、 即ち回転動作に追従する導体 1 0の方が長くなつている。 尚、 本例では、 2室に分け真空容器と、 一方の真空室内に開閉部が気 密に封入された遮断器と、 他方の真空室内に開閉部が気密に封入された 断路器及び接地装置から構成された真空スィツチについて説明したが、 真空容器と、 真空容器内に開閉部が気密に封入された遮断器から構成さ れた真空スィッチ、 或いは真空容器と、 真空容器内に開閉部が気密に封 入された断路装置及び接地装置から構成された真空スィツチの場合も考 えられる。 この場合も前例と同様に主回路と開閉部の電気的接続又は開 閉部間の電気的接続には前例と同様の可撓部材を用いる。 In this example, 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. This is an effective use of the surplus part that is fixed in the middle by the main circuit conductor 9. Therefore, 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. Similarly, 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 according to the present embodiment 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. In this example, 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 The case of a vacuum switch composed of a disconnecting device and a grounding device sealed in a box is also conceivable. Also in this case, as in the previous example, 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.
以上は一相の装置例であるが、 次に三相の例を第 5図， 第 6図にて行 う。 図面において 1 0 0は金属製の収納容器である。 収納容器 1 0 0に は真空スィツチ 1 0 1 を U， V , Wの 3相分収納している。 真空スィッ チ 1 0 1 は 3相分とも上述した実施例と同一構成のものであり、 遮断機 能を持つ遮断器 6， 接地機能を持つ接地装置 7， 断路機能を持つ断路器 8 を備えている。 真空スィツチ 1 0 1 それぞれの一端側にはま回路導体 (母線） 4 8 を電気的に接続し、 他端側には主回路用導体 9 を電気的に 接続している。  The above is an example of a one-phase device. Next, an example of a three-phase device will be described with reference to FIGS. In the drawings, 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.
また、 収納容器 1 0 0には遮断器 6， 接地装置 7， 断路器 8それぞれ の操作機構を収納した操作コンパートメント 1 0 2， 1 0 3， 1 0 4 と、 P T In the storage container 100, there are operation compartments 102, 103, 104 containing operation mechanisms of the circuit breaker 6, the grounding device 7, and the disconnector 8, respectively. PT
1 2 各操作機構に制御指令を与える保護制御装置 1 0 5 を収納している。 各 操作機構は遮断器 6， 接地装置 7， 断路器 8それぞれを 3相一括して操 作する仕組みとなっている。 操作コンパ一トメント 1 0 2， 1 0 3， 1 0 4および保護制御装置 1 0 5は、 真空スィッチ 1 0 1の主回路導体 4 8上部の空間部分に配置している。  1 2 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.
以上のように、 真空スィツチギヤは、 収納容器 1 0 0， 真空スィッチ 1 0 1 を 3相分と、 主回路用導体 9， 4 8 と、 操作コンパ一 卜メント 1 0 2 , 1 0 3， 1 0 4 と、 保護制御装置 1 0 5から構成されているも のである。  As described above, 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.
本発明の真空スィツチ及びそれを用いた真空スィツチギヤは、 環境対 応に優れかつ小型化も達成するという効果がある。 そして真空室を 2室 以上にした態様のものは、 1室の真空が壊れても片方が真空を保つとい う点で信頼性があり、 また装置全体に至らずとも一部、 例えば遮断器部 分のみの真空化を図ることができるという点でニーズに応じた製品態様 が実現でき、 しかも経済的である。  ADVANTAGE OF THE INVENTION 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. In the case where two or more vacuum chambers are provided, 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.
遮断器側への可撓性部材の適用は遮断機構 （スィッチ） の回転移動と 導通とを着実に行えるにも関わらず装置のコンパク ト化に貢献し、 接地 装置と断路器との間の可撓性部材の適用も導通の確実さとコンパク ト化 を提供する。  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.
更にブッシングの寸法形状の共通化は部品共有化に伴うコスト提言に 効を奏する。  Furthermore, sharing the dimensions and shape of the bushing is effective in proposing costs associated with sharing parts.

Claims

請 求 の 範 囲 . 開閉する部分を真空容器に組み込んでなり、 この開閉する部分を有 するものとして遮断器， 接地装置， 断路器を具備し、 前記真空容器を 少なく とも 2室に分けて、 その 1室に前記遮断器の開閉部を、 他の 1 室に前記接地装置及び断路器の開閉部を設けたことを特徴とする真空 スィッチ。. 開閉する部分を真空容器に組み込んでなり、 この開閉する部分を有 するものとして遮断器， 接地装置， 断路器を具備し、 前記真空容器を 少なく とも 2室に分けて、 その 1室に前記遮断器の開閉部を、 他の 1 室に前記接地装置及び断路器の開閉部を設け、 前記遮断器の一端と前 記真空容器外へ通じる主回路用部材とは可撓性部材をもつて電気的に 接続されていることを特徴とする真空スィツチ。. 開閉する部分を真空容器に組み込んでなり、 この開閉する部分を有 するものとして遮断器， 接地装置， 断路器を具備し、 前記真空容器を 少なく とも 2室に分けて、 その 1室に前記遮断器の開閉部を、 他の 1 室に前記接地装置及び断路器の開閉部を設け、 前記接地装置の一端と 前記断路器の一端とは可撓性部材をもって電気的に接続されているこ とを特徴とする真空スィツチ。 . 開閉する部分を真空容器に組み込んでなり、 この開閉する部分を有 するものとして遮断器， 接地装置， 断路器を具備し、 前記真空容器を 少なく とも 2室に分けて、 その 1室に前記遮断器の開閉部を、 他の 1 室に前記接地装置及び断路器の開閉部を設け、 前記遮断器の一端と前 記真空容器外へ通じる主回路用部材とは可撓性部材をもつて電気的に 接続すると共に、 前記接地装置の一端と前記断路器の一端とは可撓性 部材をもって電気的に接続することを特徴とする真空スィッチ。 . 真空容器内に遮断部を備え、 該遮断部の一端と前記真空容器外へ通 じる主回路用部材とを可撓性部材をもって電気的に接続してなること を特徴とする真空スィツチ。. 1つの真空容器内に断路器の開閉部と接地装置の開閉部を備え、 該 接地装置開閉部の一端と前記断路器開閉部の一端とは可撓性部材をも つて電気的に接続されていることを特徴とする真空スィッチ。 . 真空容器内に遮断器の開閉部を備え、 該遮断器開閉部の一端と前記 真空容器外へ通じる主回路用部材とを可撓性部材をもって電気的に接 続してなる真空遮断器と、 1つの真空容器に断路器の開閉部と接地装 置の開閉部を備え、 該接地装置開閉部の一端と前記断路器開示部の一 端とは可撓性部材をもって電気的に接続されている開閉装置とを、 前 記遮断器開閉部の他端側と前記接地装置開閉部の他端側にて電気的に 接続することを特徴とする複合真空スィツチ。 . 開閉する部分を真空容器に組み込んでなり、 この開閉する部分を有 するものとして遮断器， 接地装置， 断路器を具備し、 前記真空容器を 少なく とも 2室に分けて、 その 1室に前記遮断器の開閉部を、 他の 1 室に前記接地装置及び断路器の開示部を設け、 前記遮断器の開閉部を 設けた真空室には主回路用導体と電圧検出用導体を外方へ突出させ、 前記断路器の開閉部を設けた真空室にも主回路用導体を突出させて、 前記各導体突出部は電気絶縁部材で覆ったブッシングとし、 該ブッシ ングの内少なく とも 2つは同一形状とすることを特徴とする真空スィ ツチギヤ。 . 開閉する部分を真空容器に組み込んでなり、 この開閉する部分を有 するものとして遮断器， 接地装置， 断路器を具備し、 前記真空容器を 少なく とも 2室に分けて、 その 1室に前記遮断器の開閉部を、 他の 1 室に前記接地装置及び断路器の開閉部を設け、 前記遮断器開閉部の一 端と前記真空容器外へ通じる主回路用部材とは可撓性部材をもって電 気的に接続すると共に、 前記接地装置開閉部の一端と前記断路器開閉 部の一端とは可撓性部材をもって電気的に接続するようにし、 前記遮 断器の開閉部を設けた真空室には主回路用導体と電圧検出用導体を外 方へ突出させ、 前記断路器の開閉部を設けた真空室にも主回路用導体 を突出させて、 前記各導体突出部は電気絶縁部材で覆ったブッシング とし、 該プッシングの内少なくとも 2つは同一形状とすることを特徴 とする真空スィツチギヤ。 0 . 特許請求の範囲第 2項乃至第 7項のいずれかに係る真空スィッチ 又は特許請求の範囲第 9項の真空スィツチギヤにて、 前記可撓性部材 は、 必要通電容量に耐える断面を備え無酸素銅にて形成されてなるこ とを特徴とする真空スィッチ又は真空スィッチギヤ。 Scope of the request A part to be opened and closed is incorporated in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnector are provided as those having the part to be opened and closed, and the vacuum vessel is divided into at least two chambers. A vacuum switch, wherein an opening / closing section for the circuit breaker is provided in one of the chambers, and an opening / closing section for the grounding device and disconnector is provided in another chamber. A part to be opened and closed is incorporated in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnector are provided as those having the part to be opened and closed. The vacuum vessel is divided into at least two chambers, and An open / close section of the circuit breaker is provided in another chamber with an open / close section of the grounding device and disconnector. One end of the circuit breaker and the main circuit member communicating with the outside of the vacuum vessel have a flexible member. A vacuum switch characterized by being electrically connected. A part to be opened and closed is incorporated in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnector are provided as those having the part to be opened and closed. The vacuum vessel is divided into at least two chambers, and The switching unit of the circuit breaker is provided in another room with the switching unit of the grounding device and the disconnector. One end of the grounding device and one end of the disconnector are electrically connected by a flexible member. And a vacuum switch characterized by the following. A part to be opened and closed is incorporated in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnector are provided as those having the part to be opened and closed. The vacuum vessel is divided into at least two chambers, and An open / close section of the circuit breaker is provided in another chamber with an open / close section of the grounding device and disconnector. One end of the circuit breaker and the main circuit member communicating with the outside of the vacuum vessel have a flexible member. A vacuum switch, wherein the vacuum switch is electrically connected and one end of the grounding device and one end of the disconnector are electrically connected with a flexible member. A vacuum switch having a cut-off portion in a vacuum container, wherein one end of the cut-off portion and a main circuit member communicating outside the vacuum container are electrically connected with a flexible member. One vacuum vessel is provided with a disconnector switch and a grounding device switch, and one end of the grounding device switch and one end of the disconnector switch are electrically connected with a flexible member. A vacuum switch characterized in that: A vacuum circuit breaker having a circuit breaker switching unit in a vacuum vessel, wherein one end of the circuit breaker switching unit and a main circuit member communicating to the outside of the vacuum container are electrically connected with a flexible member; One vacuum vessel is provided with an open / close section of a disconnector and an open / close section of a grounding device, and one end of the grounding device open / close section and one end of the disconnector disclosure section are electrically connected with a flexible member. And a switchgear which is electrically connected to the other end of the circuit breaker switchgear and the other end of the grounding device switchgear. A part to be opened and closed is incorporated in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnector are provided as those having the part to be opened and closed. The vacuum vessel is divided into at least two chambers, and The open / close section of the circuit breaker is provided with the grounding device and the disconnecting section of the disconnector in the other room, and the main circuit conductor and the voltage detection conductor are placed outward in the vacuum chamber provided with the circuit breaker open / close section. The main circuit conductor is also protruded into a vacuum chamber provided with an open / close portion of the disconnector, and each of the conductor protruding portions is a bushing covered with an electrically insulating member. At least two of the bushings are A vacuum switch gear having the same shape. A part to be opened and closed is incorporated in a vacuum vessel, and a circuit breaker, a grounding device, and a disconnector are provided as those having the part to be opened and closed. The vacuum vessel is divided into at least two chambers, and The switching unit of the circuit breaker is provided in another chamber with the switching unit of the grounding device and the disconnector. One end of the switching unit of the circuit breaker and the main circuit member communicating to the outside of the vacuum vessel have a flexible member. A vacuum chamber electrically connected to one end of the grounding device opening / closing section and one end of the disconnecting switch opening / closing section with a flexible member, and provided with the opening / closing section of the breaker. The main circuit conductor and the voltage detection conductor are protruded outward, and the main circuit conductor is also protruded into the vacuum chamber provided with the open / close portion of the disconnector. Covered bushings, at least two of which Vacuum Suitsuchigiya, characterized in that the same shape. 0. The vacuum switch according to any one of claims 2 to 7, or the vacuum switch gear according to claim 9, wherein the flexible member has a cross section that can withstand a required current carrying capacity. A vacuum switch or vacuum switch gear characterized by being formed of oxygen copper.
1 . 特許請求の範囲第 1 0項において、 前記可撓性部材は無酸素銅板 を複数枚重ねて両端をロウ付けされたフレキシブル導体であることを 特徴とする真空スィッチ又は真空スィッチギヤ。  1. The vacuum switch or the vacuum switch gear according to claim 10, wherein the flexible member is a flexible conductor in which a plurality of oxygen-free copper plates are stacked and both ends are brazed.
PCT/JP1999/004116 1998-10-05 1999-07-30 Vacuum switch and vacuum switchgear using the switch WO2000021106A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99933192A EP1120804A4 (en) 1998-10-05 1999-07-30 Vacuum switch and vacuum switchgear using the switch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28220198 1998-10-05
JP10/282201 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 (en) 2000-04-13

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Application Number Title Priority Date Filing Date
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Country Status (4)

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EP (1) EP1120804A4 (en)
KR (1) KR100370485B1 (en)
CN (1) CN1273685A (en)
WO (1) WO2000021106A1 (en)

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WO2005062325A1 (en) * 2003-12-19 2005-07-07 Mitsubishi Denki Kabushiki Kaisha Disconnector
JP4841875B2 (en) * 2005-06-29 2011-12-21 株式会社日立製作所 Vacuum insulated switchgear
US7724489B2 (en) 2007-08-18 2010-05-25 Ema Electromecanica S.A. Circuit breaker with high speed mechanically-interlocked grounding switch
FR2933529B1 (en) * 2008-07-07 2010-09-03 Areva T & D Ag DISCONNECT DEVICE FOR SEPARATING OR CONNECTING TWO PARTS OF AN ELECTRIC CIRCUIT AMONG WHICH A VOLTAGE TRANSFORMER
KR101100710B1 (en) * 2010-06-11 2011-12-30 엘에스산전 주식회사 Circuit breaker for underground distribution line
EP3896711B1 (en) 2020-04-14 2023-07-26 Siemens Aktiengesellschaft Dielectric shield for a switching device

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JPS61277125A (en) * 1985-05-31 1986-12-08 株式会社東芝 Compound type hybrid switchgear
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Also Published As

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

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