WO2022138607A1 - 真空遮断器 - Google Patents
真空遮断器 Download PDFInfo
- Publication number
- WO2022138607A1 WO2022138607A1 PCT/JP2021/047189 JP2021047189W WO2022138607A1 WO 2022138607 A1 WO2022138607 A1 WO 2022138607A1 JP 2021047189 W JP2021047189 W JP 2021047189W WO 2022138607 A1 WO2022138607 A1 WO 2022138607A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sliding member
- side electrode
- insulating cylinder
- vacuum
- movable
- Prior art date
Links
- 238000005192 partition Methods 0.000 claims description 50
- 230000000694 effects Effects 0.000 description 12
- 239000004020 conductor Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 7
- 229910018503 SF6 Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 3
- 229960000909 sulfur hexafluoride Drugs 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- 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
- H01H33/662—Housings or protective screens
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66238—Specific bellows details
- H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows
Definitions
- the present disclosure relates to a vacuum breaker that opens or closes the movable side electrode with respect to the fixed side electrode installed in the vacuum container.
- the vacuum circuit breaker is mainly composed of a grounding tank, a vacuum container installed in the grounding tank, an operation unit, and the like.
- a fixed side electrode and a movable side electrode are installed in the vacuum vessel, the movable side electrode is installed at one end of the movable rod, and the operation unit is installed at the other end of the movable rod. Further, a pressure spring is installed on the movable rod.
- This contact pressure spring applies contact pressure to the movable side electrode at the time of closing the electrode and reduces the contact resistance with the fixed side electrode, so that the movable side electrode can be reliably closed to the fixed side electrode.
- the movable side electrode is opened, the movable rod, the movable side electrode, and the like vibrate due to the minute vibration of the pressure contact spring, and a load is applied to them.
- Patent Document 1 discloses an operation mechanism of a vacuum breaker that suppresses minute vibration of a pressure spring by installing an oil damper outside the grounding tank.
- the operation mechanism of the vacuum breaker suppresses minute vibration of the pressure contact spring when the movable side electrode is closed by the oil damper.
- the oil damper suppresses minute vibration of the pressure contact spring not only when the electrode is closed but also when the electrode is open.
- the present disclosure has been made to solve the above-mentioned problems, and is a vacuum circuit breaker that suppresses minute vibration of the contact spring when opening the movable side electrode without inviting an increase in the size of the entire vacuum circuit breaker.
- the purpose is to provide.
- the vacuum breaker includes a grounding tank, a vacuum container installed in the grounding tank, and an insulating cylinder installed between one end surface in the grounding tank and one side end surface outside the vacuum container.
- the fixed rod inserted into the vacuum vessel, the fixed side electrode installed at one end of the fixed rod in the vacuum vessel, and the movable side installed in the vacuum vessel so as to face the fixed side electrode.
- An electrode, a movable rod having a part thereof in the insulating cylinder and having the movable side electrode installed at one end thereof, and a movable rod installed at the other end of the movable rod, and the movable side electrode is open to the fixed side electrode.
- the operation unit that operates the movable rod so as to close the pole, the sliding member installed on the movable rod so as to slide in the insulating cylinder, and the movable portion between the operation unit and the sliding member. It is equipped with a pressure spring installed on the rod.
- the vacuum breaker has an insulating cylinder installed in the grounding tank and a sliding member sliding in the insulating cylinder, so that the movable side electrode does not increase the size of the entire vacuum breaker. It is possible to suppress minute vibration of the pressure contact spring when the electrode is opened.
- Embodiments 1 to 3 It is an example of the cross-sectional view of the vacuum breaker according to Embodiments 1 to 3. It is an example of the cross-sectional view around the sliding member in Embodiment 1. It is an example of the cross-sectional view around the sliding member in the case where the first through hole is formed in the sliding member in Embodiment 2. It is an example of the cross-sectional view around the sliding member in the case where the second through hole is formed with respect to the first partition wall in the second embodiment. It is an example of the cross-sectional view around the sliding member in the case where the third through hole is formed with respect to the side surface of the insulating cylinder in Embodiment 2. It is an example of the cross-sectional view around the sliding member when the second partition wall is installed in Embodiment 2.
- the vacuum breaker 100 according to the embodiment of the present disclosure will be described with reference to the drawings.
- the coordinate axes of the XYZ Cartesian coordinate system are shown in each figure. It is in a plane parallel to the floor surface on which the vacuum breaker 100 is installed, and the direction in which the movable side electrode 6 opens or closes is defined as the X-axis direction.
- the opening direction is the + X direction
- the closing direction is the ⁇ X direction.
- the direction parallel to the floor on which the vacuum breaker 100 is installed and perpendicular to the X-axis direction is defined as the Y-axis direction.
- the front side is in the + Y direction, and the back side is in the ⁇ Y direction.
- the direction perpendicular to the floor surface on which the vacuum breaker 100 is installed is defined as the Z-axis direction.
- the upper side is in the + Z direction
- the lower side is in the ⁇ Z direction.
- FIG. 1 is an example of a cross-sectional view of the vacuum breaker 100 according to the first embodiment.
- FIG. 1A is a cross-sectional view of the vacuum breaker 100 when the movable side electrode 6 is opened.
- FIG. 1B is a cross-sectional view of the vacuum breaker 100 when the movable side electrode 6 is closed.
- the vacuum breaker 100 includes a grounding tank 1, a vacuum vessel 2, an insulating cylinder 3, a fixed rod 4, a fixed side electrode 5, a movable side electrode 6, a movable side energizing rod 7, and a movable side insulating rod 8.
- a connecting portion 9 an operating portion 10, a sliding member 11, a pressure spring 12, a first partition wall 13a, a bellows 14, a fixed side conductor 15, and a movable side conductor 16.
- the grounding tank 1 is a grounded metal closed tank, and the inside is filled with an insulating gas.
- the insulating gas is, for example, dry air or sulfur hexafluoride.
- the vacuum container 2 is a container made of an insulating member such as ceramics, and is installed in the grounding tank 1. High insulation performance is brought out by setting the inside of the vacuum vessel 2 to a vacuum of a predetermined pressure or less. When the movable side electrode 6 is opened with respect to the fixed side electrode 5, an arc is generated and tries to be sustained. However, by making the inside of the vacuum container 2 a vacuum, there is an effect of extinguishing the arc.
- the insulating cylinder 3 is installed between the one-sided end surface inside the grounding tank 1 and the one-sided end surface outside the vacuum vessel 2.
- the end face is a plane parallel to the YZ plane.
- the end face does not necessarily have to be parallel to the YZ plane, and may be slanted.
- the insulating cylinder 3 is installed so that the X-axis direction is the longitudinal direction.
- the insulating cylinder 3 is pre-filled with gas so that pressure resistance is generated when the sliding member 11 described later moves in the + X direction.
- the gas may be an insulating gas such as dry air or sulfur hexafluoride.
- the insulating cylinder 3 may or may not be connected to one end surface in the grounding tank 1.
- the insulating cylinder 3 may or may not be connected to one end surface outside the vacuum vessel 2. However, even when they are not connected, it is desirable that the distance from the insulating cylinder 3 is small so that the gas in the insulating cylinder 3 hardly leaks to the outside.
- the insulating cylinder 3 is connected to both the one-sided end surface inside the grounding tank 1 and the one-sided end surface outside the vacuum vessel 2.
- the vacuum container 2 is supported by an insulating cylinder 3 and an insulating cylinder that covers a part of the fixing rod 4.
- the vacuum vessel 2 may be supported by a support member (not shown) in the ground tank 1. This support member is connected to both the inner side surface of the grounding tank 1 and the vacuum vessel 2 as an example.
- the fixing rod 4 is inserted into the vacuum container 2. Specifically, a part of the fixing rod 4 including at least one end is inserted into the vacuum vessel 2, and the other end of the fixing rod 4 is fixed in the grounding tank 1.
- the fixed side electrode 5 is installed at one end of the fixed rod 4 in the vacuum container 2. By installing the fixed-side electrode 5 on the fixed rod, the fixed-side electrode 5 is fixed together with the fixed rod 4 in the grounding tank 1.
- the movable side electrode 6 is installed in the vacuum container 2 so as to face the fixed side electrode 5.
- a part of the movable side energizing rod 7 is in the insulating cylinder 3, and a part on the opposite side is in the vacuum container 2.
- the movable side electrode 6 is installed at one end of the movable side energizing rod 7 in the vacuum container 2.
- the movable-side insulating rod 8 has a role of preventing a failure of the operating unit 10 by avoiding energization from the movable-side energizing rod 7 to the operating unit 10.
- the movable side insulating rod 8, the connecting portion 9, and the movable side energizing rod 7 are installed in this order in the ⁇ X direction from the pressure contact spring 12, but the present invention is not limited to this.
- the movable side insulating rod 8 may be installed in the + X direction and only the movable side energizing rod 7 may be installed in the ⁇ X direction with the pressure contact spring 12 as a boundary. In this case, the connecting portion 9 becomes unnecessary.
- the movable side energizing rod 7, the movable side insulating rod 8, and the connecting portion 9 are collectively referred to as a “movable rod”. That is, a part of the movable rod is inside the insulating cylinder 3, the movable side electrode 6 is installed at one end, and the other end is installed in the operation unit 10.
- the operation unit 10 is installed at the other end of the movable rod, and operates the movable rod so that the movable side electrode 6 opens or closes with respect to the fixed side electrode 5. That is, the operation unit 10 operates the movable rod in the X-axis direction.
- the sliding member 11 is installed on the movable side energizing rod 7 constituting the movable rod so as to slide in the insulating cylinder 3.
- the sliding member 11 moves in the X-axis direction together with the movable rod by the operating portion 10.
- the sliding member 11 is a lightweight metal such as aluminum.
- the sliding member 11 may be provided with a small gap between the sliding member 11 and the insulating cylinder 3 so that the opening speed does not decrease due to friction with the insulating cylinder 3.
- the pressure contact spring 12 is installed on a movable rod between the operation unit 10 and the sliding member 11. When the movable side electrode 6 is closed, the contact pressure spring 12 applies contact pressure to the movable side electrode 6 to reduce the contact resistance with the fixed side electrode 5, so that the movable side with respect to the fixed side electrode 5 is on the movable side. It has the effect of reliably closing the electrode 6.
- the first partition wall 13a is installed in the insulating cylinder 3 between the one-sided end surface in the grounding tank 1 and the sliding member 11. In FIG. 1, the first partition wall 13a is installed between the pressure contact spring 12 and the sliding member 11. The first partition wall 13a is fixed in the insulating cylinder 3.
- the bellows 14 is installed in the vacuum container 2.
- the bellows 14 has a role of keeping the inside of the vacuum container 2 in a vacuum even if the movable rod is moved by the operation unit 10.
- One end of the fixed side conductor 15 is connected to the fixed rod 4, and the other end is connected to an external main circuit (not shown).
- the movable side conductor 16 is connected to a movable rod at one end via a casting (not shown), a conductive member 18 and a sliding member 11, and the other end is connected to an external main circuit (not shown).
- the conductive member 18 will be described later with reference to FIG. In FIG. 1B, when the movable side electrode 6 is closed, the movable side conductor 16, the casting, the conductive member 18, the sliding member 11, the movable rod, the movable side electrode 6, the fixed side electrode 5, the fixed rod 4, and A current flows through the path of the fixed side conductor 15.
- the pressure spring 12 is installed on the movable rod between the operation unit 10 and the first partition wall 13a, but the present invention is not limited to this.
- the pressure contact spring 12 may be installed on a movable rod between the sliding member 11 and the first partition wall 13a. As a result, the device can be miniaturized.
- FIG. 2 is an example of a cross-sectional view around the sliding member 11 in the first embodiment.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- the close contact member 17 is installed between the side surface in the insulating cylinder 3 and the sliding member 11.
- the close contact member 17 is a rubber such as a T ring or an O ring.
- the conductive member 18 secures a path through which an electric current flows between the casting (not shown) and the sliding member 11.
- the vacuum breaker 100 since the sliding member 11 slides in the insulating cylinder 3 to generate pressure resistance at the time of opening the pole, the vacuum breaker 100 as a whole does not become large. It is possible to suppress minute vibration of the contact pressure spring 12.
- Embodiment 2 When the movable side electrode 6 is opened, if the pressure resistance is too large, the opening speed becomes small. Therefore, in the present embodiment, the pressure resistance is adjusted by forming a through hole in at least one of the sliding member 11, the first partition wall 13a, and the insulating cylinder 3.
- FIG. 3 is an example of a cross-sectional view around the sliding member 11 when the first through hole 19a is formed in the sliding member 11 in the second embodiment.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- a first through hole 19a is formed in the longitudinal direction of the insulating cylinder 3, that is, in the X-axis direction with respect to the sliding member 11.
- the pressure resistance becomes small and the opening speed becomes large.
- the load on the operation unit 10 that operates the movable rod can be reduced.
- the damping effect may be reduced by the first through hole 19a. Therefore, in order to maintain the pressure resistance at the time of opening the pole as much as possible, it is desirable that the size of the first through hole 19a is small so that the gas in the insulating cylinder 3 hardly leaks in the ⁇ X direction as compared with the sliding member 11. ..
- both the opening speed and the damping effect are achieved at the same time.
- the first through hole 19a does not necessarily have to be parallel to the X-axis direction as long as it can penetrate the sliding member 11.
- two or more first through holes 19a may be formed in the X-axis direction with respect to the sliding member 11.
- FIG. 4 is an example of a cross-sectional view around the sliding member 11 when the second through hole 19b is formed with respect to the first partition wall 13a in the second embodiment.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- a second through hole 19b is formed in the longitudinal direction of the insulating cylinder 3, that is, in the X-axis direction with respect to the first partition wall 13a.
- the pressure resistance becomes small and the opening speed becomes large.
- the load on the operation unit 10 that operates the movable rod can be reduced.
- the size of the second through hole 19b should be small so that the gas in the insulating cylinder 3 hardly leaks in the + X direction than the first partition wall 13a. desirable.
- the second through hole 19b does not necessarily have to be parallel to the X-axis direction as long as it can penetrate the first partition wall 13a.
- two or more second through holes 19b may be formed in the X-axis direction with respect to the first partition wall 13a.
- FIG. 5 is an example of a cross-sectional view around the sliding member 11 when the third through hole 19c is formed with respect to the side surface of the insulating cylinder 3 in the second embodiment.
- FIG. 5A is a cross-sectional view of the periphery of the sliding member 11 when the movable side electrode 6 is opened.
- FIG. 5B is a cross-sectional view of the periphery of the sliding member 11 when the movable side electrode 6 is closed.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- a third through hole 19c is formed on the side surface of the insulating cylinder 3 between the first partition wall 13a and the sliding member 11 after closing the pole.
- a third through hole 19c is formed on the side surface of the insulating cylinder 3 between the one-sided end surface in the grounding tank 1 and the sliding member 11 after closing the pole. Further, the third through hole 19c is formed so as to be closed by the sliding member 11 after opening the pole. As a result, when the movable side electrode 6 starts to open, the third through hole 19c enables high-speed opening.
- the third through hole 19c is closed by the sliding member 11, so that the pressure resistance suddenly increases and the minute vibration of the pressure contact spring 12 is suppressed. be able to.
- the size of the third through hole 19c is small so that the gas in the insulating cylinder 3 hardly leaks to the outside.
- two or more third through holes 19c may be formed with respect to the side surface of the insulating cylinder 3.
- FIG. 6 is an example of a cross-sectional view around the sliding member 11 when the second partition wall 13b is grounded in the second embodiment.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- a second partition wall 13b is installed on the outside of the insulating cylinder 3 so as to cover the third through hole 19c.
- a large amount of gas may leak from the third through hole 19c, but this can be prevented by installing the second partition wall 13b.
- the pressure resistance can be adjusted by changing the size of the second partition wall 13b.
- FIG. 7 is an example of a cross-sectional view around the sliding member 11 when the fourth through hole 19d is formed with respect to the side surface of the insulating cylinder 3 in the second embodiment.
- FIG. 7A is a cross-sectional view of the periphery of the sliding member 11 when the movable side electrode 6 is opened.
- FIG. 7B is a cross-sectional view of the periphery of the sliding member 11 when the movable side electrode 6 is closed.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- a fourth through hole 19d is formed on the side surface of the insulating cylinder 3 between the one-sided end surface outside the vacuum vessel 2 and the sliding member 11 after opening the pole, and the second partition wall 13b has a second partition wall 13b. It is installed so as to cover the third through hole 19c and the fourth through hole 19d.
- This has the effect of allowing the gas between the sliding member 11 and the first partition wall 13a to escape in the ⁇ X direction from the sliding member 11 and adjusting the pressure resistance at the time of opening the pole.
- the same effect can be obtained by increasing the size of the second partition wall 13b in FIG. 6, it may not be possible to increase the size in terms of space.
- the fourth through hole 19d the pressure resistance can be adjusted without increasing the second partition wall 13b in the Z-axis direction.
- the pressure resistance at the time of opening can be adjusted, and the opening speed can be adjusted. It is possible to achieve both the damping effect and the balance.
- FIG. 8 is an example of a cross-sectional view around the sliding member 11 when the third partition wall 13c is installed in the third embodiment.
- the same reference numerals are assigned to the same components as those in FIG. Detailed description of these will be omitted.
- a third partition wall 13c is installed between the one-sided end surface outside the vacuum vessel 2 and the sliding member 11. Thereby, the airtightness between the first partition wall 13a and the third partition wall 13c can be ensured. If the pressure resistance at the time of opening the pole becomes too large by ensuring the airtightness, the pressure resistance can be adjusted by forming the through hole shown in the second embodiment.
- the third partition wall 13c there is also an effect of suppressing minute vibration of the contact pressure spring 12 at the time of closing the electrode and suppressing wear of the fixed side electrode 5 and the movable side electrode 6.
- the airtightness between the first partition wall 13a and the third partition wall 13c can be ensured, and the contact at the time of opening the pole can be ensured.
- the minute vibration of the pressure spring 12 can be suppressed.
- Embodiments 1 to 3 can be applied not only to a vacuum circuit breaker but also to a gas circuit breaker or the like.
- the electrode is inserted in an insulating gas such as sulfur hexafluoride instead of in vacuum.
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
Description
図1は、実施の形態1における真空遮断器100の断面図の一例である。図1(a)は、可動側電極6が開極した時の真空遮断器100の断面図である。図1(b)は、可動側電極6が閉極した時の真空遮断器100の断面図である。
可動側電極6を開極させる際、圧力抵抗が大き過ぎると、開極速度が小さくなる。そこで本実施の形態では、摺動部材11、第1の隔壁13a、および絶縁筒3のうち、少なくとも1つに貫通穴を形成することで、圧力抵抗を調整する。
図8は、実施の形態3において第3の隔壁13cを設置した場合の摺動部材11周辺の断面図の一例である。図8において、図2と同じ構成要素には同じ符号を割り振る。これらについては、詳細な説明を省略する。
Claims (13)
- 接地タンクと、
前記接地タンク内に設置される真空容器と、
前記接地タンク内の片側端面と前記真空容器外の片側端面との間に設置される絶縁筒と、
前記真空容器内に挿入される固定棒と、
前記真空容器内の前記固定棒の一端に設置される固定側電極と、
前記真空容器内に前記固定側電極と対向するよう設置される可動側電極と、
一部が前記絶縁筒内にあり、一端に前記可動側電極が設置される可動棒と、
前記可動棒の他端に設置され、前記固定側電極に対し前記可動側電極が開極または閉極するよう前記可動棒を操作する操作部と、
前記絶縁筒内を摺動するよう前記可動棒に設置される摺動部材と、
前記操作部と前記摺動部材との間の前記可動棒に設置される接圧ばねと、
を備える真空遮断器。 - 前記絶縁筒内の側面と前記摺動部材との間に設置される密着部材を更に備える請求項1に記載の真空遮断器。
- 前記密着部材はゴムである請求項2に記載の真空遮断器。
- 前記絶縁筒内であって、前記接地タンク内の片側端面と前記摺動部材との間に設置される第1の隔壁を更に備える請求項1から3のいずれか1項に記載の真空遮断器。
- 前記接圧ばねは、前記摺動部材と前記第1の隔壁との間の前記可動棒に設置される請求項4に記載の真空遮断器。
- 前記摺動部材に対し、前記絶縁筒の長手方向に第1の貫通穴を形成する請求項1から5のいずれか1項に記載の真空遮断器。
- 前記第1の隔壁に対し、前記絶縁筒の長手方向に第2の貫通穴を形成する請求項4または5に記載の真空遮断器。
- 前記接地タンク内の片側端面と前記閉極後の前記摺動部材との間の前記絶縁筒の側面に対し第3の貫通穴を形成する請求項1から3のいずれか1項に記載の真空遮断器。
- 前記第1の隔壁と前記閉極後の前記摺動部材との間の前記絶縁筒の側面に対し第3の貫通穴を形成する請求項4または5に記載の真空遮断器。
- 前記第3の貫通穴は、前記開極後の前記摺動部材によって塞がれるよう形成される請求項8または9に記載の真空遮断器。
- 前記絶縁筒の外側に前記第3の貫通穴を覆うよう設置される第2の隔壁を更に備える請求項8から10のいずれか1項に記載の真空遮断器。
- 前記真空容器外の片側端面と前記開極後の前記摺動部材との間の前記絶縁筒の側面に対し第4の貫通穴を形成し、
前記第2の隔壁は前記第3の貫通穴と前記第4の貫通穴とを覆うよう設置される請求項11に記載の真空遮断器。 - 前記絶縁筒内であって、前記真空容器外の片側端面と前記摺動部材との間に設置される第3の隔壁を更に備える請求項1から12のいずれか1項に記載の真空遮断器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/266,843 US20240096573A1 (en) | 2020-12-23 | 2021-12-21 | Vacuum circuit breaker |
EP21910750.5A EP4270433A4 (en) | 2020-12-23 | 2021-12-21 | VACUUM INSULATOR |
JP2022524703A JP7226650B2 (ja) | 2020-12-23 | 2021-12-21 | 真空遮断器 |
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EP (1) | EP4270433A4 (ja) |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61153002A (ja) * | 1984-12-27 | 1986-07-11 | Toshiba Corp | 蓄圧器の気体漏えい試験方法 |
JPH07245046A (ja) | 1994-03-08 | 1995-09-19 | Toshiba Corp | 真空遮断器の操作機構 |
WO2017038538A1 (ja) * | 2015-09-03 | 2017-03-09 | 株式会社明電舎 | 真空遮断器 |
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AU2002335467A1 (en) * | 2002-09-30 | 2004-04-23 | Mitsubishi Denki Kabushiki Kaisha | Vacuum beaker |
JP4709062B2 (ja) * | 2006-05-11 | 2011-06-22 | 株式会社日本Aeパワーシステムズ | タンク形真空遮断器 |
JP5796425B2 (ja) * | 2011-09-07 | 2015-10-21 | 株式会社明電舎 | タンク形真空遮断器 |
JP2015056239A (ja) * | 2013-09-10 | 2015-03-23 | 株式会社東芝 | 開閉器 |
JP6752395B1 (ja) * | 2020-01-10 | 2020-09-09 | 三菱電機株式会社 | 真空遮断器 |
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- 2021-12-21 WO PCT/JP2021/047189 patent/WO2022138607A1/ja active Application Filing
- 2021-12-21 EP EP21910750.5A patent/EP4270433A4/en active Pending
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61153002A (ja) * | 1984-12-27 | 1986-07-11 | Toshiba Corp | 蓄圧器の気体漏えい試験方法 |
JPH07245046A (ja) | 1994-03-08 | 1995-09-19 | Toshiba Corp | 真空遮断器の操作機構 |
WO2017038538A1 (ja) * | 2015-09-03 | 2017-03-09 | 株式会社明電舎 | 真空遮断器 |
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EP4270433A1 (en) | 2023-11-01 |
JP7226650B2 (ja) | 2023-02-21 |
JPWO2022138607A1 (ja) | 2022-06-30 |
US20240096573A1 (en) | 2024-03-21 |
EP4270433A4 (en) | 2024-06-05 |
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