EP3375003A1 - Assembly and method for guiding a selector rod of a high-voltage circuit breaker - Google Patents
Assembly and method for guiding a selector rod of a high-voltage circuit breakerInfo
- Publication number
- EP3375003A1 EP3375003A1 EP17702592.1A EP17702592A EP3375003A1 EP 3375003 A1 EP3375003 A1 EP 3375003A1 EP 17702592 A EP17702592 A EP 17702592A EP 3375003 A1 EP3375003 A1 EP 3375003A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shift rod
- rod
- arrangement
- housing
- circuit breaker
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000033001 locomotion Effects 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000012212 insulator Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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
- H01H33/66238—Specific bellows details
-
- 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
- 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
-
- 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
- H01H2033/66253—Details relating to the prevention of unwanted rotation of the contact rod in vacuum switch bellows
Definitions
- the invention relates to an arrangement for a high-voltage circuit breaker having at least one movable electrical contact piece of a breaker unit, wherein the at least one movable contact piece is arranged on a switching rod and a method for driving the at least one movable electrical contact piece, wherein the contact piece via the shift rod is moved.
- High-voltage circuit breaker can be used to switch high voltages and currents, in particular in the range of up to some 10 '000 V and up to a few l' OOO A.
- an interrupter unit comprising electrical contacts, for example, a rated current and / or an arcing contact, with two contact pieces, or only one contact, with two rated current contact pieces.
- a first contact piece of the respective contact can be spatially fixed and a second contact piece of the same contact can be arranged movably in the circuit breaker. It may be arranged to be movable both contact pieces to elekt ⁇ step switching on and off.
- High-voltage circuit breakers may contain a switching gas, eg SF 6 , or be constructed in the manner of a vacuum tube.
- the interrupter unit is surrounded by a housing and the housing is gas-tight against the environment askschlos ⁇ sen or sealed.
- the gas-tight housing is filled with switching gas, or evacuated to create a vacuum in the housing. Due to the action of the switching gas or vacuum, the burning NEN of an arc between the contact pieces when switching inhibited and / or deleted.
- the one or more movable contact pieces are mechanically connected via a kinematic chain, for example to a transmission and / or a drive.
- a drive can, for example in the form of a motor or a spring energy store to be formed and provide mechanical ⁇ specific energy upon switching of the movement of electrical contact pieces.
- a shift rod as part of the kinematic chain can be used to transmit the kinetic energy into the housing, on the movable contact pieces.
- the shift rod is connected to the movable contact pieces in the housing, directly and / or via eg lever elements, gear parts and / or other deflection devices.
- An inventive arrangement for a high-voltage circuit breaker comprises at least one movable electrical ⁇ cal contact piece of a breaker unit, wherein the we ⁇ least one movable contact piece is arranged on a shift rod.
- the shift rod is movably supported between the outer region and the inner region of the housing of the interrupter unit, with an exclusively linear guidance of the shift rod.
- the bearing of the shift rod, with an exclusively linear guide prevents or prevents oscillations of the shift rod.
- vacuum tubes eg with spring bellows is ensured by the suppression of oscillations of the shift rod a long-term tightness without damaging or destroying the bellows with time.
- Rotary feedthroughs generally have a plurality of parts or elements and are difficult to seal gas-tight, especially at high pressure differences of several bar between outdoor and indoor.
- the linear guide of the shift rod may comprise a Vermossich ⁇ tion.
- This can be formed for example by a movable body, which is linearly movable in a groove arranged.
- a linear or straight groove results in a linear movement of the body in the groove, and by the rigid connec ⁇ tion of the body with the shift rod rotation of the shift rod is prevented about its longitudinal axis.
- two bodies which are opposite one another on the shift rod and are arranged on opposite sides of the shift rod, said bodies being movably arranged in two opposing grooves.
- more than two body-groove pairs may be used and / or in a groove may be arranged a plurality of rigidly connected to the shift rod body in particular.
- the movable body or bodies may have a cylindrical shape, in particular a helical shape.
- the screws can be screwed into a threaded hole in the shift rod.
- other elements such as bolts can be used as a body.
- the bodies may also be formed of the material of the shift rod, in particular be formed in one piece from the shift rod, for example by forming the shift rod with bulges.
- the shift rod may also be instead of round, for example, rectangular out ⁇ forms, and extend as in a rail in the groove. For this purpose, in the region of the groove, the shift rod may have a larger diameter than in other areas along its longitudinal axis.
- the interrupter unit may be a vacuum interrupter unit in a vacuum tube, in particular with at least one rated current contact, each with two rated current contact pieces and at least one arcing contact, each with two arcing contact pieces. Alternatively, only rated current contact pieces can be used.
- the base area of the selector rod is, unlike the rotary feedthrough, outside a gas space of the high-voltage circuit breaker.
- a compressive force is produced, which is produced by the pressure difference between the vacuum interrupter unit and an atmospheric pressure, eg in the range of 1 bar, and not a pressure force, which is determined by the pressure difference between a vacuum interrupter unit and the gas or pressure chamber is defined, for example in the range of 3 to 6 bar.
- a smaller sized and cheaper drive can be used.
- the linear guide of the shift rod can be arranged in a support leg of the high-voltage circuit breaker and / or arranged in the region of a shift rod foot.
- the construction described requires a small space and saves costs and material.
- the sealing function can be integrated into the support leg and a linear guide in the support foot provides a better and long-term stable seal achieved, since a pendulum motion in the region of the seal in the support leg is avoided.
- At least one slide bearing can be arranged in the area of the linear guide of the shift rod.
- the plain bearing reduces friction losses and allows movement of the
- the inner region of the housing of the interrupter unit can be sealed in a gastight manner with respect to the outer region via the switching rod and a sealing element arranged between the switching rod and the housing, in particular with a bellows as sealing element.
- Spring bellows permit sealing at high pressure differentials for movable parts, long-lived are for linear guidance of the switch rod without free angle ⁇ conditions, are inexpensive and simple in construction.
- the sealing element in particular the bellows may be arranged in the region of the shift rail foot, in particular egg ne concentrically disposed radial seal with the Wegstangenfuß gastight mechanically fixed and / or buildin ⁇ Untitled.
- the Heidelbergstangenfuß the shift rod can be arranged concentrically in the support leg of the housing and / or the sliding bearing, in particular with only linearly movable
- a sliding sleeve can spatially include the shift rod, the special ⁇ rigidly connected mechanically to a part with the shift rod in the region of the switching rod foot, especially designed for linear movement in the direction of the longitudinal axis of the formwork rod in a cylindrical recess of the Stützfu- ßes the high-voltage circuit breaker.
- the sliding sleeve ver ⁇ reduces friction between the shift rod and the support leg and thus reduces the force required to move the switching ⁇ rod and switching the high-voltage circuit breaker.
- the drive can thus be dimensioned smaller and less expensive.
- a bellows for gas-tight sealing of the inner region of the housing of the interrupter unit against the outer ⁇ area may be arranged, in particular gas-tight attached to the cylindrical recess of the support leg on one side to the interrupter unit back and / or gas-tight attached to the Wegstangenfuß on the opposite side, insbesonde ⁇ re on the side of the cylindrical body.
- An inverse construction is also possible, with a bellows in particular gas-tightly attached to the cylindrical recess of the support leg on one side facing away from the interrupter unit and / or gas-tight attached to the Wegstangenfuß on the side of the interrupter unit.
- a coupling element may be provided on the shift rod, for coupling with the kinematic chain of the high-voltage circuit breaker and / or a transmission and / or a drive, in particular at one end of the shift rod in the region of the shift rod foot.
- the coupling element mecha nically ⁇ are simple and cost of the mechanically coupled drive or more Ele ⁇ elements of the kinematic chain to the switching rod, for transmitting the motion to the shift rod.
- An inventive method for driving at least ei ⁇ nes movable electrical contact piece of a Hochspan--voltage circuit breaker, in particular with a previously be ⁇ signed arrangement comprises, that the one be ⁇ wegliche contact piece is at least moved via a switching rod, and along the shift rod exclusively linear the longitudinal axis of the shift rod is moved.
- a sealing element in particular a bellows seal the evacuated interior of the housing gas-tight.
- the shift rod can be movably supported between the outer region and the inner region of the housing, in particular in the region of the support foot, with a linear guide of the shift rod, in particular via cylindrical bodies on the shift rod guided in guide grooves in the support leg, which rotation of the shift rod, in particular in the form of a Rotati ⁇ on prevent the longitudinal axis of the shift rod.
- FIG. 1 shows a schematic sectional view of an arrangement 1 for a high-voltage circuit breaker with a rotary feedthrough through a housing 3 for driving a switching rod 2 according to the prior art
- Figure 2 schematically a sectional view of an inventive arrangement 1 for a high-voltage circuit breaker with a movably mounted between the outer region 5 and the inner region 4 of the housing 3 shift rod 2 with exclusively linear guide, and
- FIG. 3 schematically shows a detail of a top view of FIG
- Figure 1 is a schematic sectional view of an arrangement 1 for a high-voltage circuit breaker according to the prior art, for driving a bewegli ⁇ Chen electrical contact piece via a shift rod 2, with a rotary feedthrough through the housing 3 of the high-voltage circuit breaker or an interrupter unit 15.
- the rotary feedthrough comprises a rotary shaft 7 for transmitting a rotational movement from the outer region 5 into the inner region 4 of the housing 3 of the high-voltage circuit breaker and a rotary bearing ⁇ with sealing package 8 for gas-tight sealing of the inner region 4 relative to the outer region.
- a drive for example a spring-type drive or an electrical motor ⁇ shear, provides kinetic energy for switching the high voltage circuit breaker ready.
- the actuator is not shown in the figures of the A ⁇ sake of simplicity. Via a kinematic chain, the kinetic energy is transferred to one or more movable contact pieces in order to open or close the contactor or contacts of the interrupter unit.
- the high-voltage circuit breaker is switched.
- the one or more contacts with contact pieces is not shown in FIG. It can, for example, a rated current contact with a movable contact piece and a fixed contact piece as a breaker unit, or it can be two moving contacts as rated current contact of the high voltage circuit breaker includes.
- the interrupter unit instead of just a rated current contact egg ⁇ nen nominal current contact and an arc contact include.
- Each contact may, for example, respectively a movable and comprise a fes ⁇ tes contact piece, or in each case two movable contact pieces.
- the one or more movable contacts are mechanically ⁇ di rectly, in particular for a linear force impact, or indi rectly ⁇ eg via a coupling transmission, in particular for a force deflection, with a shift rod 2 are connected.
- Shift rod 2 and the contact pieces of the contacts of the sub ⁇ breaker unit 15 are arranged in a housing 3.
- the Ge ⁇ housing is filled in the inner region 4 having a switching gas, eg SF 6 in particular under higher pressure than in the outer region. 5
- a switching gas eg SF 6
- the area of the vacuum breaker unit is evacuated.
- the shift rod 2, as part of the kinematic chain is mechanically connected to a movable inner lever 9, which is mechanically connected via the rotary shaft 7 with a movable outer lever 6.
- the outer lever 6 is connected for example via a rod and / or a transmission to the drive.
- the pole and the transmission are analogous to the drive for the sake of simplicity ⁇ ber not shown in the figures.
- the kinetic energy during switching is transmitted from the drive via the kinematic chain, in particular via the outer lever 6, the rotary shaft 7, the inner lever 9 and the shift rod 2, on the or the bewegli ⁇ chen contact pieces.
- a movement is transmitted through the selector rod in direction 10, when it is switched off in the opposite direction.
- the contact pieces of a contact are moved towards each other when switching on and the electrical contact is closed.
- the housing 3 comprises a support leg 12, via which the Ge ⁇
- housing 3 is fastened to a frame for erecting the high-voltage circuit breaker.
- On the frame a plurality of housing 3 can be attached by interrupter units and the drive and / or elements of the kinematic chain.
- the interrupter unit 15 is arranged, for example, in a substantially cylindrical insulator housing, which is fastened in the lower region to the support leg 12 or is held by it.
- the Dreh malonce ⁇ tion is arranged with the rotary shaft 7 and the pivot bearing with seal package 8 and the inner lever 9 with the shift rod second connected in the region of the shift rod foot or at the lower end of the shift rod 2.
- the shift rod 2 with the one or more contacts completely in the inner region 4 of the gas-tight housing 3 angeord ⁇ net and a pendulum motion 11 of the shift rod 2 has no effect on the gas-tightness of the interrupter unit or the housing 3 of the interrupter unit.
- the sealing effect is determined by the seal package of the pivot bearing 8.
- an arrangement according to the invention exclusively comprises a linear guide of the switching rod or prevents a pendulum ⁇ movement of the shift rod 2.
- Figure 2 is an inventive arrangement 1 schematically shown in a sectional view, with a movably mounted between the outer region 5 and the inner region 4 of the housing 3 shift rod 2, which is guided exclusively linearly or executes exclusively a linear movement without pendulum motion.
- a contact piece is fixed and a contact piece 14 movably arranged, alternatively, both contact pieces may be arranged to be movable.
- nominal and arcing contact pieces may also be included, which is not shown in the figures for the sake of simplicity.
- the movable contact piece 14 is attached to the shift rod 2, in particular at one end of the shift rod 2 in the housing 3.
- the shift rod 2 is moved in a Einschaltbewe ⁇ tion in the direction 10, only parallel to the longitudinal axis of the shift rod 2.
- the movable contact piece 14 is moved with the shift rod 2 in the opposite direction to the direction 10.
- a coupling element 25 is arranged on the opposite side of the shift rod 2, opposite to the side with the movable contact piece 14, at the end of the shift rod 2 outside the housing 3.
- the shift rod 2 is connected to other elements of the kinematic chain and the drive, which is not shown in the figures for simplicity. Via the coupling element 25, a movement, which is provided by the drive, is transmitted to the shift rod 2 in the direction 10 or in the opposite direction.
- the housing 3 comprises in addition to an electrical insulator, in particular a substantially tubular insulator with, for example, ribs on the outside, a support leg 12, which is arranged at the lower end of the insulator and over which the example tubular insulator is placed vertically.
- the insulator is for example made of a ceramic, a silicone or a composite material.
- the support foot 12 is for example made of a metal, in particular cast iron or steel.
- the insulator is, for example glued gas-tight or cast in the support leg 12.
- a hollow tube or sleeve-shaped continuous recess 24 is formed in the support leg 12, in particular centrally symmetrical about the central axis 26 of the support foot 12.
- Shift rod 2 is performed by the recess 24, from the outer region 5 in the inner region 4 of the housing 3.
- the shift rod 2 is surrounded by a sliding sleeve 22 and enclosed gas-tight.
- the sliding sleeve 22 is formed such ⁇ out that it moves in the recess 24 of the support leg 12 along the longitudinal axis 26 of the shift rod 2 and the congruent central axis 26 of the support leg 12 during movement of the shift rod. 2
- the inner region 4 may be filled with a switching gas, for example SF 6 , or, for example, at the vacuum level, ie be evacuated.
- a switching gas for example SF 6
- an evacuated vacuum tube with the contact pieces of Unterbre ⁇ cheratti 15 is arranged.
- the bellows 20 may, as shown in Fig. 2, at the Wegstangenfuß 18 of the switching ⁇ rod 2, ie at the lower end of the shift rod 2, in particular via a sealing flange 23 with the shift rod 2 gas-tightly connected.
- the bellows 20 with the recess of the support foot 12th On the opposite side of a substantially cylindrical spring bellows 20, the bellows 20 with the recess of the support foot 12th
- the shift rod 2 may be formed analogous to a piston in the region of the shift rod foot 18 and in the insbe ⁇ special cylindrical recess of the
- Support base 12 move, with a radial seal 21 substitutedich- tet between recess 24 and Heidelbergstangenfuß 18.
- Switch rod base 18 may be arranged body 17, e.g. screwed in the form of screws in the Wegstangenfuß 18 on opposite sides on a circumferential line of the Wegstangenfußes 18, wherein the screw heads from the
- a linear guide of the shift rod 2 is given.
- the movement of the rod 2 takes place scarf exclu ⁇ Lich in the direction 10 or in the opposite direction along the longitudinal axis 26 of the shift rod 2 without free angle ⁇ supply.
- the rotation prevents rotation of the shift rod 2 during movement.
- the seal in the form of a spring bellows 20 is loaded only in the longitudinal direction of the spring bellows 20, which ensures a good, long-term stable gas-tight seal of the inner region 4 against the outer region 5 of the housing 3.
- FIG. 3 schematically shows a detail of a plan view from the underside of the arrangement 1 shown in FIG.
- Anti-rotation comprising the body 17 in the grooves 16 arranged movably, prevents rotation of the shift rod 2 about its longitudinal axis 26.
- the shift rod 2 executes when switching the high-voltage circuit breaker finally a linear movement perpendicular to the plane in Fig. 3, at Switching on the drawing level and switching off from the drawing level.
- Pendelbewe conditions of the shift rod 2 with movement components in the direction parallel to the plane, are suppressed by the linear Füh ⁇ tion or storage of the shift rod 2 in the recess 24 of the support leg 12 or not possible.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016002261.2A DE102016002261A1 (en) | 2016-02-25 | 2016-02-25 | Arrangement and method for guiding a switching rod of a high-voltage circuit breaker |
PCT/EP2017/051774 WO2017144233A1 (en) | 2016-02-25 | 2017-01-27 | Assembly and method for guiding a selector rod of a high-voltage circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3375003A1 true EP3375003A1 (en) | 2018-09-19 |
EP3375003B1 EP3375003B1 (en) | 2020-02-26 |
Family
ID=57956275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17702592.1A Active EP3375003B1 (en) | 2016-02-25 | 2017-01-27 | Assembly and method for guiding a selector rod of a high-voltage circuit breaker |
Country Status (7)
Country | Link |
---|---|
US (1) | US10553377B2 (en) |
EP (1) | EP3375003B1 (en) |
JP (1) | JP6749407B2 (en) |
KR (2) | KR20200011586A (en) |
CN (1) | CN108701564B (en) |
DE (1) | DE102016002261A1 (en) |
WO (1) | WO2017144233A1 (en) |
Families Citing this family (5)
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DE102017222406A1 (en) * | 2017-12-11 | 2019-06-13 | Siemens Aktiengesellschaft | Vacuum interrupter |
DE102019209871A1 (en) * | 2019-07-04 | 2021-01-07 | Siemens Aktiengesellschaft | Switching device |
CN111952107A (en) * | 2020-07-03 | 2020-11-17 | 淮南生橘网络科技有限公司 | Low-voltage vacuum circuit breaker based on Internet of things |
EP3989253A1 (en) | 2020-10-26 | 2022-04-27 | Hitachi Energy Switzerland AG | System for controlling a vacuum interrupter for a power diverter switch, a power diverter switch and an on-load tap changer |
KR20240051541A (en) * | 2022-10-13 | 2024-04-22 | 효성중공업 주식회사 | Vacuum circuit breaker |
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US10170255B1 (en) * | 2018-06-26 | 2019-01-01 | Michael D. Glaser | Vacuum capacitor switch with pre-insertion contact |
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2016
- 2016-02-25 DE DE102016002261.2A patent/DE102016002261A1/en not_active Withdrawn
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2017
- 2017-01-27 WO PCT/EP2017/051774 patent/WO2017144233A1/en active Application Filing
- 2017-01-27 JP JP2018544838A patent/JP6749407B2/en active Active
- 2017-01-27 EP EP17702592.1A patent/EP3375003B1/en active Active
- 2017-01-27 KR KR1020207002232A patent/KR20200011586A/en active Application Filing
- 2017-01-27 US US16/074,273 patent/US10553377B2/en active Active
- 2017-01-27 KR KR1020187024212A patent/KR102309978B1/en active IP Right Grant
- 2017-01-27 CN CN201780012732.4A patent/CN108701564B/en active Active
Also Published As
Publication number | Publication date |
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US20190341208A1 (en) | 2019-11-07 |
EP3375003B1 (en) | 2020-02-26 |
KR102309978B1 (en) | 2021-10-08 |
KR20180100242A (en) | 2018-09-07 |
JP6749407B2 (en) | 2020-09-02 |
US10553377B2 (en) | 2020-02-04 |
WO2017144233A1 (en) | 2017-08-31 |
DE102016002261A1 (en) | 2017-08-31 |
KR20200011586A (en) | 2020-02-03 |
CN108701564B (en) | 2021-05-07 |
CN108701564A (en) | 2018-10-23 |
JP2019506718A (en) | 2019-03-07 |
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