WO2013175565A1 - ガス遮断器 - Google Patents
ガス遮断器 Download PDFInfo
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- WO2013175565A1 WO2013175565A1 PCT/JP2012/063008 JP2012063008W WO2013175565A1 WO 2013175565 A1 WO2013175565 A1 WO 2013175565A1 JP 2012063008 W JP2012063008 W JP 2012063008W WO 2013175565 A1 WO2013175565 A1 WO 2013175565A1
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- gas
- gas space
- movable
- communication hole
- space
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/901—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc
- H01H33/903—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc and assisting the operating mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H2033/888—Deflection of hot gasses and arcing products
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H2033/908—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism using valves for regulating communication between, e.g. arc space, hot volume, compression volume, surrounding volume
Definitions
- the present invention relates to a gas circuit breaker that is applied to an electric power system such as power generation / transformation and that cuts off current using an insulating gas such as sulfur fluoride (SF6) having good arc extinguishing characteristics.
- an electric power system such as power generation / transformation
- an insulating gas such as sulfur fluoride (SF6) having good arc extinguishing characteristics.
- a part of the gas in a closed tank filled with an insulating gas such as SF6 is compressed together with the opening operation by the mechanical force of the operating device to increase the pressure and contact it.
- an insulating gas such as SF6
- a shut-off portion for shutting off the current is provided in the sealed tank, and four energization portions are provided concentrically around the shut-off portion. .
- blocking parts and each electricity supply part are attached to the fixed side auxiliary conductor and the movable side auxiliary conductor.
- an insulating cylinder is provided on the outer peripheral portion of the energization section, a fixed-side cylindrical conductor is connected to one end of the insulating cylinder via a fixed-side auxiliary conductor, and a movable-side auxiliary conductor is connected to the other end of the insulating cylinder. The movable-side cylindrical conductor is connected through this.
- each energizing part is accommodated is a space substantially closed by the insulating cylinder, the blocking part, the fixed auxiliary conductor, and the movable auxiliary conductor, and the gas between the fixed cylindrical conductor and the movable cylindrical conductor.
- the space is connected only through the arc generation area of the interruption part.
- the gas circuit breaker configured in this manner generates an arc between the contacts by opening and closing the movable arc contact and the fixed arc contact, and interrupts the current by blowing gas.
- the conventional gas circuit breaker disclosed in Patent Document 1 has the following problems.
- hot gas flows from the arc region to the fixed cylindrical conductor and movable cylindrical conductor, and this hot gas mixes with the original cold gas to reduce the pressure in each cylindrical conductor. Raise.
- hot gas flows from the beginning of the arc generation, and there is no mechanism for driving the movable arc contact on the fixed cylindrical conductor side.
- the gas pressure in the gas space on the fixed cylindrical conductor side increases steeply due to the fact that the gas volume on the cylindrical conductor side is smaller than the gas volume on the movable cylindrical conductor side.
- the storage space of the energization part is a space substantially closed by the fixed side auxiliary conductor or the like, so the gas capacity on the fixed side cylindrical conductor side is small.
- the pressure difference with the gas space on the fixed cylindrical conductor side becomes relatively small, and the speed at which the hot gas generated at the blocking portion flows into the gas space on the fixed cylindrical conductor side becomes small. Therefore, the discharge of the hot gas from the arc region is delayed and the interruption performance is reduced.
- the gas space on the fixed cylindrical conductor side must be increased, and there is a trade-off relationship between the predetermined cutoff performance and the miniaturization of the sealed tank. Therefore, the conventional gas circuit breaker has a problem that it cannot meet the needs for downsizing the sealed tank while satisfying the predetermined shutoff performance.
- the present invention has been made in view of the above, and an object of the present invention is to obtain a gas circuit breaker capable of reducing the size of a sealed tank while satisfying a predetermined shut-off performance.
- the present invention provides a sealed tank filled with an insulating gas, and a movable arc contact and a fixed arc contact disposed opposite to each other in the sealed tank.
- a plurality of current-carrying parts disposed around the shut-off part around the axis in the sealed tank, and a first housing for housing each of the current-carrying parts.
- the gas space on the fixed arc contact side communicates with other gas spaces, there is an effect that it is possible to reduce the size of the sealed tank while satisfying a predetermined shutoff performance.
- FIG. 1 is a longitudinal sectional view showing a configuration of a gas circuit breaker according to Embodiment 1 of the present invention.
- 2 is a cross-sectional view taken along the line II-II shown in FIG.
- FIG. 3 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the second embodiment of the present invention.
- FIG. 4 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the third embodiment of the present invention.
- FIG. 5 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the fourth embodiment of the present invention.
- FIG. 1 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the first embodiment of the present invention, and is a sectional view taken along line AA shown in FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG.
- a sealed tank 100 shown in FIG. 1 is connected to an insulating cylinder 2 made of, for example, epoxy resin, a cylindrical fixed-side cylindrical conductor 3 connected to one end of the insulating cylinder 2, and the other end of the insulating cylinder 2.
- the cylindrical movable side cylindrical conductor 4 is integrally formed, and the sealed tank 100 is filled with an insulating gas such as SF6.
- the sealed tank 100 is supported on the support frame 5 by a support insulator 6 and a support insulator 7.
- An operation device 10 is installed on the support base 5.
- the side surface of the movable cylindrical conductor 4 is provided with a hole through which an insulating operation rod 11 having one end connected to the link mechanism 12 and the other end connected to the operating device 10 is passed.
- the support insulator 7 insulates and supports the periphery of the movable cylindrical conductor 4 provided with this hole.
- the opening / closing part 1 is opened / closed via an insulating operation rod 11 made of an insulating member, a link mechanism 12 and one link mechanism 13 having one end provided inside the sealed tank 100.
- the opening / closing unit 1 includes a blocking unit 14 for blocking current and an energizing unit 15 for energizing a rated current.
- the blocking section 14 includes a fixed auxiliary conductor 300 connected to the fixed cylindrical conductor 3, a fixed arc contact 20 electrically connected to the fixed auxiliary conductor 300, and the same axis as the fixed arc contact 20.
- the movable arc contacts 21 are opposed to each other on the line.
- the movable arc contact 21 can be connected to and separated from the fixed arc contact 20 on the axis, and is electrically connected to a movable auxiliary conductor 400 connected to the movable cylindrical conductor 4 via a rod contact 22.
- One end of the movable arc contact 21 is connected to the link mechanism 12, and the movable arc contact 21 can be linearly reciprocated in the axial direction by the operating device 10 via the link mechanism 12 and the insulating operation rod 11. It has become.
- the link mechanism 13 is connected to the movable arc contact 21 so that the movable energizing contact 24 reciprocates in the axial direction in conjunction with the operation of the movable arc contact 21 via the link mechanism 13. It is configured.
- the energization part 15 includes a movable cylindrical conductor 401, a fixed auxiliary conductor 300, a fixed energizing contact 23 electrically connected to the fixed auxiliary conductor 300, and a cylindrical shape opposite to the fixed energizing contact 23. It is comprised with the movable electricity supply contactor 24.
- the energizing portion 15 is attached to the insulating cylinder 2, the fixed side auxiliary conductor 300, the movable side auxiliary conductor 400, and the insulating member 28 extending to the movable side auxiliary conductor 400 along the outer peripheral surface of the fixed arc contact 20. It is provided in the enclosed gas space 50.
- One end of the movable energizing contact 24 (the end on the fixed energizing contact 23 side) is in an open state, and this end is fitted into the fixed energizing contact 23 to be in contact.
- a disc-shaped end plate is provided at the other end of the movable energizing contact 24 (the end opposite to the end on the fixed energizing contact 23 side).
- the piston rod 221 connected to is fixed. As the movable arc contact 21 reciprocates, the piston rod 221 reciprocates in the same direction, so that the movable energizing contact 24 and the fixed energizing contact 23 are brought into and out of contact with each other.
- a movable side cylindrical conductor 401 is connected to the movable side auxiliary conductor 400, and the movable energizing contact 24 is in electrical contact with the movable side cylindrical conductor 401 via a ring-shaped contact (not shown). It is slidably connected.
- the volume of the mechanical puffer chamber 26 formed by the movable auxiliary conductor 400, the movable cylindrical conductor 401, and the movable energizing contact 24 changes as the movable energizing contact 24 and the fixed energizing contact 23 open and close. .
- the insulating member 28 connected to the fixed side auxiliary conductor 300 extends to the movable side along the outer peripheral surface of the fixed arc contact 20.
- the insulating nozzle 27 connected to the movable side auxiliary conductor 400 extends to the fixed side.
- the mechanical puffer chamber 26 has an arc generation region in which an arc is generated when the fixed arc contact 20 and the movable arc contact 21 are separated through a blow-off passage 29 formed by an insulating nozzle 27 and an insulating member 28. Communicate.
- four energization portions 15 are provided in the gas space 50, and these energization portions 15 surround the blocking portion 14 and are arranged, for example, at equal intervals on a concentric circle.
- the current-carrying parts 15 are arranged on concentric circles with a predetermined radius centered on the axis of the cutoff part 14 with the axis of the current-carrying part 15 parallel to the axis of the cutoff part 14 and separated from each other. For example, they are arranged at equal intervals.
- the four energizing parts 15 are electrically connected to the blocking part 14, and the movable energizing contact 24 can be connected to and separated from the fixed energizing contact 23 on the axis.
- the fixed auxiliary conductor 300 is provided with a communication hole 51 that communicates the gas space 500 and the gas space 50 on the fixed cylindrical conductor 3 side.
- the communication hole 51 is formed, for example, between the current-carrying portions 15. Yes.
- the communication holes 51 are provided between the energization portions 15, the gas flowing into the gas space 50 from the communication holes 51 directly hits the movable energization contact 24, the fixed energization contact 23, and the mechanical puffer. There is nothing. Further, since the gas space 500 and the gas space 50 are connected by the communication hole 51, the gas space 500 is relatively widened, and the pressure difference between the gas pressure near the blocking portion 14 and the gas pressure in the gas space 500 is relatively large. Become. As the gas pressure difference increases, the flow rate of the gas increases, so that the speed at which the hot gas generated in the blocking portion 14 flows into the gas space 500 increases. Therefore, the discharge of the hot gas from the arc region can be accelerated and the interruption performance can be improved. Therefore, it is possible to reduce the size of the sealed tank 100 while satisfying a predetermined shut-off performance.
- the gas flow path to the gas space 500 on the movable cylindrical conductor 4 side widens, so that the gas pressure in the arc generation region decreases and the insulation gas becomes high pressure. Is sprayed on the arc. This extinguishes the arc and cuts off the current.
- the energization parts 15 surround the blocking part 14 and are arranged on the concentric circles at equal intervals. However, the arrangement intervals of the energization parts 15 are not limited to equal intervals, and are unequal. It may be an interval.
- the interrupting part 14 constituted by the fixed arc contact 20, a plurality of energizing parts 15 disposed around the interrupting part 14 around the axis in the sealed tank 100, and the energizing parts 15 Is provided between the first gas space (space 50) for storing the gas and the second gas space (space 500) provided on the stationary arc contact 20 side and in which the insulating gas heated by the blocking portion 14 diffuses.
- a first wall surface (fixed-side auxiliary conductor 300), and the fixed-side auxiliary conductor 300 is connected to the gas space 50 and the gas space 500 provided between the current-carrying portions 15.
- Hole (communication hole 51) is provided Runode, gas volume of the fixed-side cylindrical conductor 3 gas space 500 is gas space 50 of the side and communicated with the gas space 500 is relatively large. Therefore, the pressure difference between the gas pressure in the vicinity of the blocking part 14 and the gas pressure in the gas space 500 increases, and the flow rate of the hot gas generated in the blocking part 14 increases. As a result, it is possible to reduce the size of the sealed tank 100 while satisfying a predetermined blocking performance, to reduce the volume of the sealed tank 100, and to improve durability.
- Embodiment 2 FIG.
- the communication hole 51 is provided in the fixed auxiliary conductor 300, but in the second embodiment, the communication hole 53 is also provided in the movable auxiliary conductor 400.
- Configurations other than the specific configuration of the second embodiment are the same as those of the first embodiment, and have the same effect.
- the same reference numerals are given to the same parts as those in the first embodiment, and the description thereof is omitted, and only different parts will be described here.
- FIG. 3 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the second embodiment of the present invention.
- the difference from the first embodiment is that a communication hole 53 is provided in the movable auxiliary conductor 400 at a position substantially opposite to the communication hole 51.
- the operation when the current is interrupted will be described.
- the hot gas generated by the arc flows into the gas space 500, and the gas existing in the gas space 500 and the interrupting section 14 are in the gas space 500.
- the gas in the gas space 500 rises and a part of the mixed gas flows into the gas space 50 through the communication hole 51.
- the gas space 500 is connected to the gas space 50 and the gas space 600 on the movable cylindrical conductor 4 side by the communication hole 51 and the communication hole 53. The pressure difference between the gas pressure in the vicinity of the blocking portion 14 and the gas pressure in the gas space 500 is further increased.
- the speed at which the hot gas generated in the blocking unit 14 flows into the gas space 500 is faster than that in the first embodiment. Therefore, the discharge of the hot gas from the arc region can be accelerated, and the interruption performance can be further improved. Therefore, it is possible to reduce the size of the sealed tank 100 as compared with the first embodiment.
- the gas flow path to the gas space 600 on the movable cylindrical conductor 4 side widens, so that the gas pressure in the arc generation region decreases and the insulation gas becomes high pressure. Is sprayed on the arc. This extinguishes the arc and cuts off the current.
- Side auxiliary conductor 400), and the movable side auxiliary conductor 400 is provided with a second communication hole (communication hole 53) that allows the gas space 50 and the gas space 600 to communicate with each other.
- the space 50 communicates with the gas space 600 on the movable cylindrical conductor 4 side, and the gas capacity of the gas space 500 becomes larger than that in the first embodiment. Therefore, the flow velocity of the hot gas generated in the blocking unit 14 can be further increased. As a result, the volume of the sealed tank 100 can be further reduced and the durability can be improved.
- Embodiment 3 FIG.
- the communication hole 53 is provided in the movable side auxiliary conductor 400, but in the third embodiment, the pipe 52 is provided so as to communicate with the communication hole 51.
- the configuration other than the specific configuration of the third embodiment is the same as that of the second embodiment, and has the same effect.
- the same parts as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted. Only different parts will be described here.
- FIG. 4 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the third embodiment of the present invention.
- the difference from the second embodiment is that the length of the gas space 50 is shorter than the length of the gas space 50 in the axial direction. This is the point that a pipe 52 is provided.
- the tube 52 is formed in a cylinder having a diameter larger than the diameter of the communication hole 51, for example.
- the operation when the current is interrupted will be described.
- the hot gas generated by the arc flows into the gas space 500, and the gas existing in the gas space 500 and the interrupting section 14 are in the gas space 500.
- the gas in the gas space 500 is increased and a part of the mixed gas flows into the pipe 52 through the communication hole 51.
- the gas space 500 is connected to the gas space 50 and the gas space 600 on the movable cylindrical conductor 4 side by the communication hole 51 and the communication hole 53.
- the pressure difference between the gas pressure in the vicinity of the blocking portion 14 and the gas pressure in the gas space 500 is further increased.
- the speed at which the hot gas generated in the blocking unit 14 flows into the gas space 500 is faster than that in the first embodiment. Therefore, the discharge of the hot gas from the arc region can be accelerated, and the interruption performance can be further improved. Therefore, it is possible to reduce the size of the sealed tank 100 as compared with the first embodiment.
- the gas flowing into the pipe 52 is arranged so as to advance substantially straight toward the communication hole 53 and is discharged from the open end 52 a of the pipe 52. Then, most of the gas discharged from the opening end 52 a flows into the gas space 600 through the communication hole 53. Therefore, the possibility that the gas flowing into the pipe 52 from the gas space 500 hits the energizing portion 15 can be reduced, and the energizing contacts (the movable energizing contact 24 and the fixed energizing contact 23) of the energizing portion 15 due to foreign matters contained in the gas. And the risk of damage to machine puffers can be reduced.
- the gas flow path to the gas space 500 on the movable cylindrical conductor 4 side widens, so that the gas pressure in the arc generation region decreases and the insulation gas becomes high pressure. Is sprayed on the arc. This extinguishes the arc and cuts off the current.
- the fixed-side auxiliary conductor is formed to be shorter than the axial length of the gas space 50 and communicates with the communication hole 51. Since the gas flow pipe (pipe 52) provided in 300 is provided, the same effect as that of the second embodiment can be obtained, and the gas flowing from the gas space 500 into the pipe 52 is supplied to the energization unit 15. The risk of hitting can be reduced, and the risk of damage to the current-carrying contacts and mechanical puffers of the current-carrying part 15 can be reduced.
- Embodiment 4 FIG.
- the pipe 52 is provided so as to communicate with the communication hole 51.
- the pipe 52-1 not only communicates with the communication hole 51 but also communicates with the communication hole 53. Is provided.
- the configuration other than the specific configuration of the fourth embodiment is the same as that of the third embodiment, and has the same effect.
- the same parts as those in the first to third embodiments are denoted by the same reference numerals and description thereof is omitted, and only different parts will be described here.
- FIG. 5 is a longitudinal sectional view showing the configuration of the gas circuit breaker according to the fourth embodiment of the present invention.
- the difference from the third embodiment is that the tube 52-1 is formed longer than the third embodiment, and that one end of the tube 52-1 is in communication with the communication hole 51, and the side surface of the current-carrying portion of the fixed-side auxiliary conductor 300 is different. It is provided in 300a, and is provided in the energization part side surface 400a of the movable side auxiliary conductor 400 so that the other end of the pipe 52 communicates with the communication hole 53.
- the tube 52-1 is formed in a cylinder having a diameter larger than the diameter of the communication hole 51 and the diameter of the communication hole 53, for example.
- the operation when the current is interrupted will be described.
- the hot gas generated by the arc flows into the gas space 500, and the gas existing in the gas space 500 and the interrupting section 14 are in the gas space 500.
- the gas in the gas space 500 rises and a part of the mixed gas flows into the pipe 52-1 through the communication hole 51.
- the gas space 500 is connected to the gas space 600 by the communication hole 51, the pipe 52-1, and the communication hole 53. The pressure difference between the gas pressure in the vicinity of the blocking portion 14 and the gas pressure in the gas space 500 is further increased.
- the speed at which the hot gas generated in the blocking unit 14 flows into the gas space 500 is increased. Therefore, the discharge of the hot gas from the arc region can be accelerated, and the interruption performance can be further improved. Therefore, it is possible to reduce the size of the sealed tank 100 as compared with the first embodiment.
- the pipe 52-1 since the pipe 52-1 is provided, the gas flowing into the pipe 52-1 from the gas space 500 does not hit the energizing section 15, and the energizing contact or machine of the energizing section 15 is caused by foreign matter contained in the gas. The risk of damage to the puffer can be reduced as compared with the third embodiment.
- the gas flow path to the gas space 500 on the movable cylindrical conductor 4 side widens, so that the gas pressure in the arc generation region decreases and the insulation gas becomes high pressure. Is sprayed on the arc. This extinguishes the arc and cuts off the current.
- one end is provided in the fixed auxiliary conductor 300 so as to communicate with the communication hole 51, and the other end is movable so as to communicate with the communication hole 53. Since the pipe 52-1 provided in the side auxiliary conductor 400 is provided, the gas space 500 can be expanded as compared with the first embodiment, and the energizing contact of the energizing section 15 and the like are more than those according to the third embodiment. The risk of damage can be reduced.
- gas circuit breaker concerning embodiment of this invention shows an example of the content of this invention, and it is possible to combine with another another well-known technique, and does not deviate from the summary of this invention. Of course, it is possible to change the configuration such as omitting a part of the range.
- the present invention can be applied to a gas circuit breaker, and is particularly useful as an invention capable of reducing the size of a sealed tank while satisfying a predetermined breaking performance.
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Abstract
Description
図1は、本発明の実施の形態1にかかるガス遮断器の構成を示す縦断面図であり、図2に示されるA-A線における断面図である。図2は、図1に示されるII-II線における矢視断面図である。
実施の形態1では、固定側補助導体300に連通孔51が設けられているが、実施の形態2では、可動側補助導体400にも連通孔53が設けられている。実施の形態2の特有の構成以外の構成については、実施の形態1と同一であり、同様の作用を奏するものである。以下、実施の形態1と同一部分には同一符号を付してその説明を省略し、ここでは異なる部分についてのみ述べる。
実施の形態2では、可動側補助導体400に連通孔53が設けられているが、実施の形態3では、管52が連通孔51と連通するように設けられている。実施の形態3の特有の構成以外の構成については、実施の形態2と同一であり、同様の作用を奏するものである。以下、実施の形態1、2と同一部分には同一符号を付してその説明を省略し、ここでは異なる部分についてのみ述べる。
実施の形態3では、管52が連通孔51と連通するように設けられているが、実施の形態4では、管52-1が連通孔51と連通するだけでなく連通孔53とも連通するように設けられている。実施の形態4の特有の構成以外の構成については、実施の形態3と同一であり、同様の作用を奏するものである。以下、実施の形態1~3と同一部分には同一符号を付してその説明を省略し、ここでは異なる部分についてのみ述べる。
2 絶縁筒
3 固定側円筒導体
4 可動側円筒導体
5 支持架台
6、7 支持絶縁物
10 操作装置
11 絶縁操作ロッド
12、13 リンク機構
14 遮断部
15 通電部
20 固定アーク接触子
21 可動アーク接触子
22 ロッド接触子
23 固定通電接触子
24 可動通電接触子
26 機械パッファ室
27 絶縁ノズル
28 絶縁部材
29 吹出し流路
50 ガス空間(第1のガス空間)
51 連通孔(第1の連通孔)
53 連通孔(第2の連通孔)
52、52-1 管(ガス通流管)
52a 開口端
100 密閉タンク
221 ピストンロッド
300 固定側補助導体(第1の壁面)
300a、400a 通電部側面
400 可動側補助導体(第2の壁面)
401 可動側円筒導体
500 ガス空間(第2のガス空間)
600 ガス空間(第3のガス空間)
Claims (4)
- 絶縁ガスが充填された密閉タンクと、
この密閉タンク内に相対向して配設された可動アーク接触子と固定アーク接触子とで構成されている遮断部と、
前記密閉タンク内に軸線を中心として前記遮断部の周りに相互に離隔して配設された複数の通電部と、
前記各通電部を収納する第1のガス空間と前記固定アーク接触子側に設けられ前記遮断部で熱せられた絶縁ガスが拡散する第2のガス空間との間に設けられた第1の壁面と、
を備え、
前記第1の壁面には、前記各通電部の間に設けられ前記第1のガス空間と前記第2のガス空間とを連通させる第1の連通孔が設けられていることを特徴とするガス遮断器。 - 前記第1のガス空間と前記可動アーク接触子側の第3のガス空間とを隔絶する第2の壁面を有し、
前記第2の壁面には、前記第1のガス空間と前記第3のガス空間とを連通させる第2の連通孔が設けられていることを特徴とする請求項1に記載のガス遮断器。 - 前記第1のガス空間の軸方向の長さよりも短い長さに形成され、かつ、前記第1の連通孔と連通するように前記第1の壁面に設けられたガス通流管を備えたことを特徴とする請求項2に記載のガス遮断器。
- 一端が前記第1の連通孔と連通するように前記第1の壁面に設けられ、他端が前記第2の連通孔と連通するように前記第2の壁面に設けられたガス通流管を備えたことを特徴とする請求項2に記載のガス遮断器。
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PCT/JP2012/063008 WO2013175565A1 (ja) | 2012-05-22 | 2012-05-22 | ガス遮断器 |
JP2012547201A JP5178967B1 (ja) | 2012-05-22 | 2012-05-22 | ガス遮断器 |
US14/382,233 US9384924B2 (en) | 2012-05-22 | 2012-05-22 | Gas circuit breaker |
CN201280073316.2A CN104335315B (zh) | 2012-05-22 | 2012-05-22 | 气体断路器 |
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PCT/JP2012/063008 WO2013175565A1 (ja) | 2012-05-22 | 2012-05-22 | ガス遮断器 |
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US (1) | US9384924B2 (ja) |
JP (1) | JP5178967B1 (ja) |
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JP6244262B2 (ja) * | 2014-05-16 | 2017-12-06 | 株式会社日立製作所 | ガス遮断器 |
EP3149757B1 (en) * | 2014-06-02 | 2018-08-08 | ABB Schweiz AG | High voltage puffer breaker and a circuit breaker unit comprising such a puffer breaker |
US9991064B2 (en) * | 2016-08-10 | 2018-06-05 | Abb Schweiz Ag | SF6 insulated circuit breaker system with thermal capacitor |
LU100322B1 (en) * | 2017-06-27 | 2019-01-08 | Abb Schweiz Ag | Circuit breaker |
CN111357074B (zh) * | 2017-11-10 | 2021-12-24 | 株式会社东芝 | 气体断路器 |
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- 2012-05-22 WO PCT/JP2012/063008 patent/WO2013175565A1/ja active Application Filing
- 2012-05-22 CN CN201280073316.2A patent/CN104335315B/zh active Active
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US9384924B2 (en) | 2016-07-05 |
CN104335315A (zh) | 2015-02-04 |
US20150060411A1 (en) | 2015-03-05 |
CN104335315B (zh) | 2017-04-05 |
JPWO2013175565A1 (ja) | 2016-01-12 |
JP5178967B1 (ja) | 2013-04-10 |
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