CN106206153A - The outdoor bipolar vacuum circuit breaker of railway - Google Patents
The outdoor bipolar vacuum circuit breaker of railway Download PDFInfo
- Publication number
- CN106206153A CN106206153A CN201610792374.0A CN201610792374A CN106206153A CN 106206153 A CN106206153 A CN 106206153A CN 201610792374 A CN201610792374 A CN 201610792374A CN 106206153 A CN106206153 A CN 106206153A
- Authority
- CN
- China
- Prior art keywords
- insulated tension
- circuit breaker
- railway
- outdoor
- vacuum circuit
- 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.)
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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
- H01H33/666—Operating arrangements
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention provides a kind of outdoor bipolar vacuum circuit breaker of railway.Described outdoor railway includes with bipolar vacuum circuit breaker: pole, is provided with two；Insulated tension pole, is provided with two；Operating mechanism, is used for driving insulated tension pole to switch at closing position and open position, and has the drive rod outputed power with linear-movable manner, and the rectilinear movement direction of drive rod is parallel with the rectilinear movement direction of insulated tension pole；Drive mechanism, including two set transmission components, two set transmission components, under the linear drives of drive rod, drive the insulated tension pole rectilinear movement being connected with transmission component respectively.The outdoor railway that the present invention provides is with in bipolar vacuum circuit breaker, the motion of two insulated tension poles is separate, driven by different transmission components respectively, another pole will not be affected because of the damage of one of them pole, so when maintenance, producer need not the two poles of the earth are adjusted parameter simultaneously, so repairs more convenient.
Description
Technical field
The present invention relates to high-tension switch gear technical field, be specifically related to a kind of outdoor bipolar vacuum circuit breaker of railway.
Background technology
Outdoor railway is mainly used in the traction of the electric railway that electric pressure is 27.5kV with bipolar vacuum circuit breaker
The places such as electric substation, subregion booth, switching station, use as opening and closing load current, overcurrent and short circuit current.
In actual use, it is often desirable that outdoor railway two poles of bipolar vacuum circuit breaker are capable of simultaneously
Switch closing and switch opening, it is simple to operate and control, to this end, as it is shown in figure 1, Chinese patent literature CN201766039 discloses a kind of electricity
Gasification railway single-phase bipolar circuit breaker, including: fixed mount 13；The transmission case 8 being arranged on fixed mount 13, tool in transmission case 8
There is jointed gear unit 9；The actuating case 12 being arranged on transmission case 8, has operating mechanism 11 in actuating case 12；It is arranged on transmission
Insulation column 3 on case 8；The pole 1 being connected with insulation column 3 by lower wire outlet seat 2.Wherein, transmission case 8 is provided with
Lower guide 7, lower wire outlet seat 2 is provided with guide 5, and the pull bar 4 in pole 1 is through upper guide 5 and insulation
Insulated tension pole 6 upper end in post 3 connects, and insulated tension pole 6 lower end is connected through lower guide 7 with drive mechanism 9.Drive mechanism 9
By the second connecting lever assembly 16 being connected with insulated tension pole 6, first be connected with the second connecting lever assembly 16 by first connecting rod 15 is turned
Arm component 14 forms, and wherein the first connecting lever assembly 14 is connected with operating mechanism 11 by second connecting rod 10.
Electric railway single-phase bipolar circuit breaker in above-mentioned patent documentation, when transmission, is driven by operating mechanism 11
First connecting lever assembly 14 moves, and then drives first connecting rod 15 and second connecting rod 10 to move by the first connecting lever assembly 14, and then
The second connecting lever assembly 16 is driven to move by the linkage of first connecting rod 15 and second connecting rod 10, and then by the second connecting lever assembly 16
Motion drive the insulated tension pole on both sides to move respectively.Although above-mentioned electric railway single-phase bipolar circuit breaker is capable of two
Switch closing and switch opening while pole, but during post debugging on sale dismounting, owing to the second connecting lever assembly 16 must be by first
Linkage between connecting rod and second connecting rod drives, if thus one of them pole damage and need debugging dismounting, another
Pole is also required to the debugging dismounting work carrying out being correlated with, so that two poles are capable of switch closing and switch opening simultaneously, so in maintenance
Time producer need the two poles of the earth to be adjusted parameter simultaneously, so repair and inconvenient.
Summary of the invention
It is desirable to provide a kind of bipolar vacuum circuit breaker of outdoor railway being easily installed with after-sales service.
For achieving the above object, the invention provides a kind of outdoor bipolar vacuum circuit breaker of railway, including: sealing pole
Post, is provided with two；Insulated tension pole, is provided with two, be arranged on the most movably linearly correspondence pole at, and have with
The closing position that the "on" position of corresponding pole is corresponding, and the open position that gate-dividing state is corresponding；Operating mechanism, uses
In driving insulated tension pole to switch at closing position and open position, and there is the driving outputed power with linear-movable manner
Bar, and the rectilinear movement direction of drive rod is parallel with the rectilinear movement direction of insulated tension pole；Drive mechanism, including two set transmission groups
Part, two set transmission components, under the linear drives of drive rod, drive the insulated tension pole rectilinear movement being connected with transmission component respectively.
Further, drive mechanism also includes transmission case, and transmission component includes that lever connecting lever, lever connecting lever are hinged on transmission
On case, and lever connecting lever has first end hinged with drive rod and for the second end driving insulated tension pole to move.
Further, also including the power transmission component being arranged between the second end and the insulated tension pole of lever connecting lever, power passes
The driving of the second end of lever connecting lever is converted to drive the rectilinear movement of insulated tension pole by dynamic assembly.
Further, power transmission component includes: power transmission shaft, and its first end is hinged with the second end of lever connecting lever；Transmission is turned
Arm, is hinged on transmission case, and one end of transmission crank arm is hinged with the second end of power transmission shaft, and the other end is hinged with insulated tension pole.
Further, drive mechanism also includes: the limit journey part being arranged between transmission crank arm and transmission case, to turn transmission
The driving stroke of arm carries out spacing.
Further, limit journey part includes the excess of stroke spring being set on insulated tension pole, and one end of excess of stroke spring is turned with transmission
Arm abuts against, and the other end of excess of stroke spring abuts against with transmission case.
Further, drive mechanism also includes return unit, and the partial pressure of return unit, on insulated tension pole, is protected closing a floodgate
After holding force disappears, insulated tension pole is driven to reset to open position from closing position.
Further, return unit includes that one end is connected with transmission crank arm, the back-moving spring that the other end is connected with transmission case.
Further, outdoor railway also includes insulating sleeve with bipolar vacuum circuit breaker, and insulating sleeve is set in insulation and draws
Outside bar.
Further, with bipolar vacuum circuit breaker, outdoor railway also includes that hand switch, hand switch join with transmission crank arm
Dynamic setting, and transmission crank arm can be driven together to rotate with hand switch.
Technical solution of the present invention, has the advantage that
1. the outdoor railway that the present invention provides with in bipolar vacuum circuit breaker, the rectilinear movement side of drive rod in operating mechanism
Parallel to the rectilinear movement direction with insulated tension pole, drive mechanism includes that corresponding two poles arrange two set transmission components, two
Set transmission component, under the linear drives of drive rod, drives the insulated tension pole rectilinear movement being connected with transmission component, so respectively
During railway uses with bipolar vacuum circuit breaker out of doors, the motion of two insulated tension poles is separate, respectively by not
Same transmission component drives, and will not affect another pole because of the damage of one of them pole, and so when maintenance, producer need not
The two poles of the earth are adjusted parameter simultaneously, so repair more convenient.
2. the outdoor railway that the present invention provides is with in bipolar vacuum circuit breaker, and transmission component includes lever connecting lever, passes through
Lever connecting lever is hinged with transmission case, and its one end is hinged with drive rod, and one end is used for driving the second end of insulated tension pole, thus
Realize the shunting of drive rod output power, at guarantee two poles while installing and be the most unaffected, whole biography
The structure of motivation structure is the simplest.
3. the outdoor railway that the present invention provides is with in bipolar vacuum circuit breaker, by the second end of lever connecting lever and insulation
Power transmission component is set between pull bar, the driving of the second end of lever connecting lever is converted to drive the rectilinear movement of insulated tension pole,
So that suitable with the position of insulated tension pole and stroke, preferably realize insulated tension pole between closing position and open position
Switching.
4. the outdoor railway that the present invention provides is with in bipolar vacuum circuit breaker, by setting between transmission crank arm and transmission case
Put limit journey part, insulated tension pole stroke in motor process can be avoided excessive, pole is produced and damages, improve product
Reliability.
5. the outdoor railway that the present invention provides is with in bipolar vacuum circuit breaker, by arranging and transmission crank arm linkage setting
Hand switch, thus except using operating mechanism to drive insulated tension pole switching between closing position and open position, also may be used
It is to realize above-mentioned switching purpose in the way of manually, many regulating measures, improve the convenience degree of operation.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to specifically
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural scheme of mechanism of the outdoor bipolar vacuum circuit breaker of railway in prior art；
Fig. 2 is the structural scheme of mechanism of the outdoor bipolar vacuum circuit breaker of railway in the embodiment of the present invention；
Fig. 3 is the structure for amplifying schematic diagram in A portion shown in Fig. 2；
Fig. 4 is the perspective view of drive mechanism in the embodiment of the present invention.
Wherein, the reference in above-mentioned accompanying drawing is:
10-insulated tension pole；20-operating mechanism；21-drive rod；30-drive mechanism；31-transmission case；32-lever connecting lever；
33-power transmission shaft；34-transmission crank arm；35-limits journey part；36-return unit；40-insulating sleeve；50-pole.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that described enforcement
Example is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
As shown in Figures 2 to 4, outdoor railway according to embodiments of the present invention includes with bipolar vacuum circuit breaker: sealing pole
Post 50, is provided with two；Insulated tension pole 10, is provided with two, is arranged on the most movably linearly at the pole 50 of correspondence, and
There is the closing position corresponding with the "on" position of corresponding pole 50, and the open position that gate-dividing state is corresponding；Behaviour
Motivation structure 20, is used for driving insulated tension pole 10 to switch at closing position and open position, and has dynamic with linear-movable manner
The drive rod 21 of power output, and the rectilinear movement direction of drive rod 21 is parallel with the rectilinear movement direction of insulated tension pole；Driver
Structure 30, including two set transmission components, two set transmission components, under the linear drives of drive rod 21, drive with transmission component even respectively
The insulated tension pole 10 connect moves linearly.Thus the outdoor railway provided in the present invention is with in bipolar vacuum circuit breaker, operating mechanism
In 20, the rectilinear movement direction of drive rod 21 is parallel with the rectilinear movement direction of insulated tension pole 10, and drive mechanism 30 includes corresponding two
Pole 50 arranges two set transmission components, and two set transmission components, under the linear drives of drive rod, drive and transmission group respectively
The insulated tension pole 10 that part connects moves linearly, and during railway uses with bipolar vacuum circuit breaker the most out of doors, two thoroughly do away with edge
The motion of pull bar 10 is separate, is driven by different transmission components respectively, will not be because of the damage shadow of one of them pole
Ringing another pole, so when maintenance, producer need not the two poles of the earth are adjusted parameter simultaneously, so repairs more convenient.
With further reference to Fig. 4, the power transmission component in the embodiment of the present invention includes: power transmission shaft 33, with lever connecting lever 32
Second end is hinged；Transmission crank arm 34, is hinged on transmission case 31, and one end of transmission crank arm 34 is hinged with power transmission shaft 33, another
Hold hinged with insulated tension pole 10.When transmission, as a example by closing a floodgate, power transmission shaft 33 is oliquely downward transported under the effect of lever connecting lever 32
Dynamic, and then promote the transmission crank arm 34 being hinged on transmission case 31 to rotate, drive the insulated tension pole 10 of transmission crank arm 34 other end
Move upward, thus realize making process.
Preferably, the drive mechanism 30 in the embodiment of the present invention also includes: be arranged on transmission crank arm 34 and insulated tension pole 10
Between limit journey part 35, carry out spacing with the driving stroke to transmission crank arm 34, insulated tension pole 10 can be avoided in motor process
Middle formation is excessive, produces pole 50 and damages, improves the reliability of product.Limit journey part 35 includes being set in insulated tension pole
Excess of stroke spring on 10, one end of excess of stroke spring abuts against with transmission crank arm 34, the other end of excess of stroke spring and transmission case 31 phase
Abutting, in making process, transmission crank arm 34 can promote insulated tension pole 10 to move upward, and can compress excess of stroke bullet in the process
Spring, until the elastic force of excess of stroke spring is equal with the driving force of transmission crank arm 34, at this moment insulated tension pole 10 no longer moves, it is achieved to absolutely
The restriction of edge pull bar 10 shift position, and use excess of stroke spring, so there is the advantage that material easily obtains.
As shown in Figure 4, the drive mechanism 30 in the embodiment of the present invention also includes: return unit 36, to drive insulated tension pole 10
Resetting, concrete return unit 36 includes that one end is connected with transmission crank arm 34, the back-moving spring that the other end is connected with transmission case 31.Pass through
Arrange one end to be connected with transmission crank arm 34, the back-moving spring that the other end is connected with transmission case 31, during closing a floodgate, Ke Yila
Dynamic back-moving spring, during separating brake, after the power of actuator disappears, insulated tension pole 10 can be from closing position at reset bullet
Under the effect of spring, drive transmission crank arm 34 until insulated tension pole 10 is reset to open position, be automatically obtained separating brake process.When
So, during separating brake, the excess of stroke spring compressed also has the active force making insulated tension pole 10 reset, and insulation can be promoted to draw
Bar 10 resets.
Preferably, the outdoor railway in the embodiment of the present invention also includes insulating sleeve 40 with bipolar vacuum circuit breaker, insulation
Sleeve 40 is set in outside insulated tension pole 10, to improve the insulating properties of insulated tension pole 10, has ensured that outdoor railway is used further
The safe and stable operation of bipolar vacuum circuit breaker.
Preferably, outdoor railway also includes hand switch, hand switch and transmission crank arm 34 with bipolar vacuum circuit breaker
Dynamic setting, and transmission crank arm 34 can be driven together to rotate with hand switch.By arranging the hands arranged with transmission crank arm 34 linkage
Dynamic switch, thus except using operating mechanism 20 to drive the insulated tension pole 10 switching between closing position and open position, also
Can be to realize above-mentioned switching purpose in the way of manually, many regulating measures, improve the convenience degree of operation.
Below in conjunction with Fig. 2 to Fig. 4 to the switching mistake of bipolar vacuum circuit breaker of the outdoor railway in the embodiment of the present invention
Journey is described:
Switch knob from gate-dividing state to "on" position, operation operating mechanism 20, the energy storage bullet in operating mechanism 20
Spring resets, and mechanism's output shaft installing plate is rotated up simultaneously, drives driver plate and drive rod 21 to move upward drive transmission device
30.Under the driving of drive rod 21, the first end of lever connecting lever 32 moves upward and drives lever connecting lever 32 to rotate, lever connecting lever 32
Rotation drive its second end to move downward, and then pull power transmission shaft 33 to move downward, the transmission crank arm coordinated with power transmission shaft 33
34 can rotate, and transmission crank arm 34, while rotating, on the one hand can drive insulated tension pole 10 to move up and realize insulated tension pole 10
Switching to closing position from open position, the vacuum interrupter in integrated solid sealed pole 50 is moved upward by insulated tension pole 10 and closes
Close, complete making process.On the other hand meeting, stretches back-moving spring, the journey spring of compression limit simultaneously.
From "on" position to gate-dividing state, after operating mechanism 20 removes power, transmission crank arm 34 is in back-moving spring and limit
Rotate under the effect of the restoring force of journey spring, and then drive insulated tension pole 10 to move downward, the vacuum in integrated solid sealed pole 50
Arc-chutes move downward separation by insulated tension pole 10, complete separating brake process.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or
Change among still in the protection domain of the invention.
Claims (10)
1. the bipolar vacuum circuit breaker of outdoor railway, it is characterised in that including:
Pole (50), is provided with two；
Insulated tension pole (10), is provided with two, is arranged on described pole (50) place of correspondence the most movably linearly, and has
There are the closing position corresponding with the "on" position of corresponding described pole (50), and the sub-gate position that gate-dividing state is corresponding
Put；
Operating mechanism (20), is used for driving described insulated tension pole (10) to switch at described closing position and described open position, and
There is the drive rod (21) outputed power with linear-movable manner, and the rectilinear movement direction of described drive rod (21) is with described
The rectilinear movement direction of insulated tension pole is parallel；
Drive mechanism (30), including two set transmission components, the two set described transmission component linear drives in described drive rod (21)
Under, drive described insulated tension pole (10) rectilinear movement being connected with described transmission component respectively.
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 1, it is characterised in that drive mechanism (30) also wraps
Including transmission case (31), described transmission component includes that lever connecting lever (32), described lever connecting lever (32) are hinged on described transmission case
(31) on, and described lever connecting lever (32) has first end hinged with described drive rod (21) and is used for driving described insulation to draw
The second end that bar (10) moves.
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 2, it is characterised in that described in also including being arranged on
Power transmission component between second end and the described insulated tension pole (10) of lever connecting lever (32), described power transmission component is by described thick stick
The driving of the second end of bar connecting lever (32) is converted to drive the rectilinear movement of described insulated tension pole (10).
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 3, it is characterised in that described power transmission component bag
Include:
Power transmission shaft (33), its first end is hinged with the second end of described lever connecting lever (32)；
Transmission crank arm (34), is hinged on described transmission case (31), and one end of described transmission crank arm (34) and described power transmission shaft
(33) the second end is hinged, and the other end is hinged with described insulated tension pole (10).
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 4, it is characterised in that described drive mechanism (30)
Also include: limit journey part (35) being arranged between described transmission crank arm (34) and described transmission case (31), so that described transmission is turned
The driving stroke of arm (34) carries out spacing.
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 5, it is characterised in that described limit journey part (35) is wrapped
Including the excess of stroke spring being set on described insulated tension pole (10), one end of described excess of stroke spring offsets with described transmission crank arm (34)
Connecing, the other end of described excess of stroke spring abuts against with described transmission case (31).
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 4, it is characterised in that described drive mechanism (30)
Also including return unit (36), the partial pressure of described return unit (36) is on described insulated tension pole (10), in closing retention force
After disappearance, described insulated tension pole (10) is driven to reset to open position from closing position.
The outdoor bipolar vacuum circuit breaker of railway the most according to claim 7, it is characterised in that described return unit (36) wraps
Include one end to be connected with described transmission crank arm (34), the back-moving spring that the other end is connected with described transmission case (31).
The outdoor bipolar vacuum circuit breaker of railway the most according to any one of claim 1 to 8, it is characterised in that described
With bipolar vacuum circuit breaker, outdoor railway also includes that insulating sleeve (40), described insulating sleeve (40) are set in described insulated tension pole
(10) outside.
10. according to the bipolar vacuum circuit breaker of outdoor railway according to any one of claim 4 to 8, it is characterised in that described
With bipolar vacuum circuit breaker, outdoor railway also includes that hand switch, described hand switch set with described transmission crank arm (34) linkage
Put, and described transmission crank arm (34) can be driven together to rotate with described hand switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792374.0A CN106206153B (en) | 2016-08-31 | 2016-08-31 | The bipolar vacuum circuit breaker of outdoor railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610792374.0A CN106206153B (en) | 2016-08-31 | 2016-08-31 | The bipolar vacuum circuit breaker of outdoor railway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106206153A true CN106206153A (en) | 2016-12-07 |
| CN106206153B CN106206153B (en) | 2018-12-14 |
Family
ID=58087110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610792374.0A Active CN106206153B (en) | 2016-08-31 | 2016-08-31 | The bipolar vacuum circuit breaker of outdoor railway |
Country Status (1)
| Country | Link |
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| CN (1) | CN106206153B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493071A (en) * | 2018-05-18 | 2018-09-04 | 中国电力科学研究院有限公司 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
| CN111917016A (en) * | 2020-08-12 | 2020-11-10 | 杭州万禾电力科技有限公司 | Large capacity looped netowrk cabinet of insulating mode of environment-friendly |
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| US4612428A (en) * | 1984-07-25 | 1986-09-16 | Alsthom | Compressed gas circuit breaker able to be assembled and disassembled without a significant loss of gas |
| US4814560A (en) * | 1987-04-09 | 1989-03-21 | Asea Brown Boveri Ab | High voltage circuit breaker |
| CN103460326A (en) * | 2011-05-17 | 2013-12-18 | 三菱电机株式会社 | Gas circuit breaker |
| CN203536329U (en) * | 2013-11-08 | 2014-04-09 | 沈阳工业大学 | Superspeed mechanical switch |
| CN205992498U (en) * | 2016-08-31 | 2017-03-01 | 华仪电气股份有限公司 | The bipolar vacuum circuit breaker of outdoor railway |
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2016
- 2016-08-31 CN CN201610792374.0A patent/CN106206153B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4612428A (en) * | 1984-07-25 | 1986-09-16 | Alsthom | Compressed gas circuit breaker able to be assembled and disassembled without a significant loss of gas |
| US4814560A (en) * | 1987-04-09 | 1989-03-21 | Asea Brown Boveri Ab | High voltage circuit breaker |
| CN103460326A (en) * | 2011-05-17 | 2013-12-18 | 三菱电机株式会社 | Gas circuit breaker |
| CN203536329U (en) * | 2013-11-08 | 2014-04-09 | 沈阳工业大学 | Superspeed mechanical switch |
| CN205992498U (en) * | 2016-08-31 | 2017-03-01 | 华仪电气股份有限公司 | The bipolar vacuum circuit breaker of outdoor railway |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493071A (en) * | 2018-05-18 | 2018-09-04 | 中国电力科学研究院有限公司 | A kind of high-voltage circuitbreaker with permanent magnet synchronous motor operating mechanism |
| CN111917016A (en) * | 2020-08-12 | 2020-11-10 | 杭州万禾电力科技有限公司 | Large capacity looped netowrk cabinet of insulating mode of environment-friendly |
| CN111917016B (en) * | 2020-08-12 | 2022-05-27 | 杭州万禾电力科技有限公司 | Large capacity looped netowrk cabinet of insulating mode of environment-friendly |
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| Publication number | Publication date |
|---|---|
| CN106206153B (en) | 2018-12-14 |
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| CB02 | Change of applicant information |
Address after: 325600, No. 228, Central Avenue, Yueqing Economic Development Zone, Wenzhou, Zhejiang, Yueqing Applicant after: Huayi Electric Apparatus Group Address before: 325600 Wenzhou Economic Development Zone, Zhejiang, Central Avenue, No. 228 Applicant before: Huayi Electric Apparatus Group |
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