CN109921292A - The closing coil base device and system of switchgear - Google Patents
The closing coil base device and system of switchgear Download PDFInfo
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- CN109921292A CN109921292A CN201910216916.3A CN201910216916A CN109921292A CN 109921292 A CN109921292 A CN 109921292A CN 201910216916 A CN201910216916 A CN 201910216916A CN 109921292 A CN109921292 A CN 109921292A
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- switchgear
- closing coil
- fixing piece
- hole
- fixed structure
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Abstract
The present invention provides the closing coil base devices and system of a kind of switchgear, are related to technical field of power systems, comprising: switchgear fixing piece, and the motor fixture being fixedly connected with switchgear fixing piece；Switchgear fixing piece is provided with the first fixed structure of the first predetermined number, is fixedly connected by first fixed structure with switchgear；Switchgear fixing piece is additionally provided with iron core through-hole, for making the battery core of closing coil do back and forth movement by iron core through-hole；Wherein, the diameter of iron core through-hole is greater than the diameter of the battery core of closing coil；Motor fixture is provided with the second fixed structure of the second predetermined number, is fixedly connected by the second fixed structure with peripheral hardware motor.The present invention can be such that closing coil is not blocked by combined floodgate buckle, while can effectively improve the replacement efficiency of closing coil.
Description
Technical field
The present invention relates to technical field of power systems, a kind of closing coil base device more particularly, to switchgear and are
System.
Background technique
10KV fixed switching cabinet is a kind of electrical equipment, for being generated electricity, being transmitted electricity, block terminal electric energy in electric system
The process of conversion is the electrical equipment for being opened and closed, being controlled and being protected.Closing coil, closing line are provided in 10KV switchgear
It is vital that circle realizes that combined floodgate plays the role of to breaker, provides in 10KV fixed switching cabinet technical protocol 5.4.2.11
" closing coil should not dismantle other parts at clearly visible position, replacement ", but closing coil is solid by dual bed at present
Fixed, closing coil is blocked by other component, so that needing to dismantle multiple other components during replacing closing coil, and then is made
The replacement process of closing coil is complex, and replacement efficiency is lower.
Summary of the invention
It, can be in view of this, the purpose of the present invention is to provide the closing coil base device and system of a kind of switchgear
Make the position of closing coil, it is apparent that and effectively improving the replacement efficiency of closing coil.
In a first aspect, the embodiment of the invention provides a kind of closing coil base devices of switchgear, comprising: switchgear is solid
Determine part, and the motor fixture being fixedly connected with switchgear fixing piece；Switchgear fixing piece is provided with the first predetermined number
First fixed structure is fixedly connected by first fixed structure with switchgear；Switchgear fixing piece is additionally provided with iron core through-hole, uses
In making the battery core of closing coil do back and forth movement by iron core through-hole；Wherein, the diameter of iron core through-hole is greater than the electricity of closing coil
The diameter of core；Motor fixture is provided with the second fixed structure of the second predetermined number, passes through the second fixed structure and peripheral hardware electricity
Machine is fixedly connected.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein on
Motor fixture is stated to be perpendicularly fixed on switchgear fixing piece.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on
Stating motor fixture is right angle fixing piece.
The possible embodiment of second with reference to first aspect, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein above-mentioned right angle fixing piece includes the first right-angle surface and the second right-angle surface；First right-angle surface is for setting
Set the second fixed structure；Second right-angle surface with switchgear fixing piece for being fixedly connected.
The third possible embodiment with reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein above-mentioned second right-angle surface includes upper right-angle side and lower right-angle side；Wherein, the length of lower right-angle side
Greater than the length of upper right-angle side；Lower right-angle side is fixedly connected with switchgear fixing piece.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein every
A first fixed structure is the first through hole of the first pre-set dimension；Each second fixed structure is the of the second pre-set dimension
Two through-holes.
The 5th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 6th kind of first aspect
Possible embodiment, wherein the spacing between each second through-hole is default spacing.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein on
The making material for stating device is metal material.
Second aspect, the embodiment of the present invention also provide a kind of closing coil support system of switchgear, including first aspect
To the closing coil base device of the 7th kind of possible described in any item switchgears of embodiment of first aspect, further include with
The switchgear and peripheral hardware motor of the closing coil base device connection of switchgear.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on
The system of stating further includes that the iron core of the closing coil of back and forth movement is done by the iron core through-hole of closing coil base device.
The embodiment of the present invention bring it is following the utility model has the advantages that
The embodiment of the invention provides the closing coil base devices and system of a kind of switchgear, including switchgear fixing piece
And motor fixture, switchgear fixing piece are fixedly connected with motor fixture, wherein switchgear fixing piece is provided with multiple first
Fixed structure, and be fixedly connected by first fixed structure with switchgear, switchgear fixing piece is additionally provided with iron core through-hole, is used for
The iron core of closing coil is set to do back and forth movement by the iron core through-hole；Multiple second fixed structures are provided in motor fixture,
It is fixedly connected by second fixed structure with peripheral hardware motor.Closing coil base device provided in an embodiment of the present invention, is not necessarily to
Using the form of pedestal in the prior art and combined floodgate buckle, the problem of closing coil is blocked by combined floodgate buckle is avoided, and
It can also make the position of closing coil, it is apparent that on the other hand, will no longer be required to disassembly combined floodgate button when replacing closing coil
Plate, it is only necessary to dismantle the motor fixture of closing coil base device, reduce the operating quantity of replacement closing coil, can effectively improve
The replacement efficiency of closing coil.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the closing coil base device of switchgear provided in an embodiment of the present invention；
Fig. 2 is a kind of top view of the closing coil base device of switchgear provided in an embodiment of the present invention；
Fig. 3 is a kind of front view of the closing coil base device of switchgear provided in an embodiment of the present invention；
Fig. 4 is a kind of side view of the closing coil base device of switchgear provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of the closing coil support system of switchgear provided in an embodiment of the present invention.
Icon:
10- switchgear fixing piece；20- motor fixture；11- first fixed structure；12- iron core through-hole；21- second is solid
Determine structure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
The closing coil in 10KV fixed switching cabinet is fixed by dual bed at present, and closing coil is by combined floodgate buckle
It shelters from, needs to dismantle the fixed stay bolt in left side and combined floodgate buckle of dual bed, detailed process packet when replacing closing coil
Disassembly combined floodgate buckle first is included, the circlip of combined floodgate buckle pin is then torn open with the pincers that rise, finally dismantles on the left of closing coil dual bed
Two fixed stay bolts, while needing to pay attention to gasket when dismantling fixed stay bolt and not fall and not pull on the right side of buckle
Spring, this does not meet the regulation of " closing coil should not dismantle other parts at clearly visible position, replacement " not only, and
The change procedure of closing coil is complex, and replacement efficiency is lower.
Based on this, a kind of the closing coil base device and system of switchgear provided in an embodiment of the present invention are compared and existing
Have in technology and be fixed by pedestal and combined floodgate buckle, the present invention does not need installation combined floodgate buckle, avoids closing coil quilt
The problem of other component blocks makes the position of closing coil, it is apparent that in addition when replacing closing coil, it is only necessary to dismantle motor
Fixing piece can effectively improve the replacement efficiency of closing coil.
For the closing line convenient for understanding the present embodiment, first to a kind of switchgear disclosed in the embodiment of the present invention
Circle base device describes in detail, the structural schematic diagram of the closing coil base device of switchgear shown in Figure 1, the dress
It sets including following part:
Switchgear fixing piece 10, and the motor fixture 20 being fixedly connected with switchgear fixing piece 10.
In order to which closing coil base device provided in an embodiment of the present invention to be fixed on switchgear, so solid in switchgear
Determine the first fixed structure 11 for being provided with the first predetermined number on part 10, is fixedly connected by first fixed structure with switchgear.
Fixed structure can be through-hole, so that the structures such as bolt, screw, stud pass through through-hole, and then closing coil base device be consolidated
It is scheduled on switchgear.Wherein, bolt is a kind of machine components, is formed by head and with externally threaded screw rod two parts, with and
Using threaded nut, the purpose for being fastenedly connected two parts with fixation hole, in the specific implementation, switchgear are had reached
On be provided with the one-to-one through-hole of through-hole on switchgear fixing piece so that bolt fixes switchgear and switchgear fixing piece
Together.Screw is divided into the screw for fixing wooden device and the screw rod for fixing metal device, if this embodiment
Choosing is screwed, then the screw for being used for switchgear and switchgear fixing piece in the present embodiment is screw rod.Stud is a kind of
The threaded fastener in both ends, in use, one end of stud is screwed in band internal thread fixation hole, the other end passes through band
Have in the fixation hole of through-hole, then screw on nut, has reached the purpose of fixed switchgear and switchgear fixing piece.
Preferably, it is contemplated that being bonded between switchgear and switchgear fixing piece, it can be in switchgear fixing piece
A through-hole is respectively set in quadrangle, i.e. the first preset quantity is four, and four through-holes are separately positioned on switchgear fixing piece
Quadrangle, to realize being bonded between switchgear and switchgear fixation.
In view of providing " closing coil is in clearly visible position " in 10KV fixed switching cabinet technical protocol 5.4.2.11,
Iron core through-hole 12 is additionally provided on switchgear fixing piece 10, for making the battery core of closing coil do round-trip fortune by iron core through-hole
It is dynamic, so that coil is not blocked by other component, reach the requirement of " closing coil is in clearly visible position ".Wherein, in order to make to close
The iron core of brake cable circle can be normal through iron core through-hole, so the diameter of iron core through-hole is greater than the diameter of the battery core of closing coil.
Preferably, it can carry out testing the diameter of iron core through-hole, choose diameter of the suitable diameter as iron core through-hole, use up
Amount does not influence the action process of closing coil iron core.
Further, in order to which closing coil base device provided in an embodiment of the present invention to be fixed on motor, so electric
Machine fixing piece 20 is provided with the second fixed structure 21 of the second predetermined number, connects by the way that the second fixed structure and peripheral hardware motor are fixed
It connects.Wherein, the second predetermined number can be two, and two fixed structures are separately positioned on the upper end of motor fixture under
End；Fixed structure can be through-hole, it is contemplated that stove bolt in the prior art needs corresponding small spring washer, and this when fixed
A little small spring washers are easy to fall in disassembly, so selection does not fall out the bolt arrangement of bolt spring washer, keep above-mentioned bolt arrangement logical
It crosses through-hole and then closing coil base device is fixed on switchgear.
The embodiment of the invention provides a kind of closing coil base devices of switchgear, including switchgear fixing piece and motor
Fixing piece, switchgear fixing piece are fixedly connected with motor fixture, and wherein switchgear fixing piece is provided with multiple first fixed knots
Structure, and be fixedly connected by first fixed structure with switchgear, switchgear fixing piece is additionally provided with iron core through-hole, closes a floodgate for making
The iron core of coil does back and forth movement by the iron core through-hole；Multiple second fixed structures are provided in motor fixture, by this
Second fixed structure is fixedly connected with peripheral hardware motor.Closing coil base device provided in an embodiment of the present invention, without existing
There is the form of pedestal and combined floodgate buckle in technology, avoid the problem of closing coil is blocked by combined floodgate buckle, but also can be with
Make the position of closing coil, it is apparent that on the other hand, will no longer be required to disassembly combined floodgate buckle when replacing closing coil, it is only necessary to
The motor fixture in closing coil base device is dismantled, the operating quantity of replacement closing coil is reduced, can effectively improve combined floodgate
The replacement efficiency of coil.
Under normal conditions, motor is lain in a horizontal plane in switchgear, so motor fixture should be perpendicularly fixed at switchgear and consolidate
Determine on part, so that closing coil base device can be bonded fixation with motor and switchgear.
Further, the first fixed structure on switchgear fixing piece is the first through hole of the first pre-set dimension, referring to
A kind of top view of the closing coil base device of switchgear shown in Fig. 2 is provided with 4 first on switchgear fixing piece and leads to
Hole, size is corresponding with the size of the bolt of selection, screw or stud, to be reached by 4 first through hole by closing line
Circle base device is fixed on the purpose on switchgear.And cored through-hole is arranged in intermediate in switchgear fixing piece, and iron core is logical
The diameter in hole is greater than iron core diameter, and further, the selection of the iron core diameter should be to influence minimum standard to iron core movement.
In order to make closing coil base device it is firm fixation is bonded with motor, motor fixture is designed as right angle and is fixed
Part is bonded the right angle of motor fixture with the right angle of motor, can be in order to after having replaced closing coil, by closing coil bottom
Base device is fixed on motor, and then improves the efficiency of replacement closing coil.Further, in order to reduce motor fixture to the greatest extent
Need position it is excessive, should according to the size of motor preselect setting motor fixture length.
It should be understood that right angle fixing piece generally comprises two faces, i.e. the first right-angle surface and the second right-angle surface.Referring to Fig. 3
Shown in a kind of front view of the closing coil base device of switchgear, be provided with the second fixed structure in the first right-angle surface, point
The upper end of first right-angle surface and the lower end of the first right-angle surface are not set.
Wherein, each second fixed structure is the second through-hole of the second pre-set dimension, and the second pre-set dimension Ying Ji
Rationally it is arranged in bolt model, can facilitate the disassembly for carrying out bolt and tighten, to improve replacement closing coil
Efficiency.
It should be understood that the spacing between two the second through-holes is rationally arranged, i.e., each according to the length of motor fixture
Spacing between second through-hole is default spacing, keeps the second through-hole present position easy to disassemble and tightens bolt, can also be improved
Bolt dismantling and the efficiency tightened, and then improve the efficiency of replacement closing coil.
For convenient for understanding that the embodiment of the invention also provides switchgears to motor fixture provided by the above embodiment
Closing coil base device side view, the side view of the closing coil base device of a kind of switchgear referring to fig. 4,
Second right-angle surface of motor fixture with switchgear fixing piece for being fixedly connected.Wherein, the second right-angle surface includes upper right-angle side
With lower right-angle side, it is contemplated that lower right-angle side with switchgear fixing piece for being fixedly connected, in order to make motor fixture and switchgear
It is connected firmly between fixing piece, is not easy to be damaged, can suitably increase the length of the lower right-angle side of the second right-angle surface to arrive
The length of the lower right-angle side of second right-angle surface of motor fixture is greater than the length of upper right-angle side, further, the second right-angle surface
The length of upper right-angle side and the length of lower right-angle side can be designed according to the size of motor.
In one embodiment, the making material of above-mentioned apparatus can use metal material.Preferably, above-mentioned apparatus
Making material can use the consistent making material of material of switchgear, or choose more preferably making material.Material in order to obtain
Matter is consistent or material more preferably making material, and quality test, packet can be carried out to the making material of closing coil base device
Full voltage combined floodgate mechanical characteristic test, low-voltage combined floodgate mechanical characteristic test and 80% voltage combined floodgate mechanical characteristic test are included, is led to
It crosses above-mentioned test to test the impact force of closing coil iron core, chooses the optimal material conduct of iron core impact force test result
The making material of closing coil base device, to guarantee that the combined floodgate effect of closing coil not will receive the influence of pedestal making material
Or influence of the pedestal making material to combined floodgate effect is minimum.Specifically, when testing, closing coil should be made in specified electricity
Pressure 80% to 105% between, when closing coil between the 80% to 105% of voltage rating can reliability service when, selection
Making material of the material at this time as closing coil base device.
Preferably, consolidation process can be carried out in the junction of motor fixture and switchgear fixing piece, further to mention
The stability of high closing coil base device.
In conclusion closing coil base device provided in an embodiment of the present invention, compares and passes through pedestal in the prior art
It is fixed with combined floodgate buckle, the present invention does not need installation combined floodgate buckle, avoids closing coil and is asked by what other component blocked
Topic, makes the position of closing coil, it is apparent that in addition when replacing closing coil, it is only necessary to motor fixture is dismantled, it can be effective
Improve the replacement efficiency of closing coil.
The embodiment of the invention provides a kind of closing coil support system, a kind of combined floodgate of switchgear shown in Figure 5
The structural schematic diagram of coil base system, the closing coil base device including the described in any item switchgears of previous embodiment
100, it further include the switchgear 200 and peripheral hardware motor 300 being connect with the closing coil base device 100 of switchgear.
The embodiment of the invention provides a kind of closing coil support system of switchgear, by fixed structure by switchgear
Closing coil base device is fixed on peripheral hardware motor and switchgear, and will not block closing coil, makes the position of closing coil
It sets, it is apparent that the disassembly of the closing coil base device of the switchgear simultaneously is simple, can effectively improve closing coil more
Change efficiency.
Further, which further includes that the closing line of back and forth movement is done by the iron core through-hole of closing coil base device
The iron core of circle.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can be with reference to the corresponding process in previous embodiment, and details are not described herein.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in utility model.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of closing coil base device of switchgear characterized by comprising switchgear fixing piece, and opened with described
Close the motor fixture that cabinet fixing piece is fixedly connected；
The switchgear fixing piece is provided with the first fixed structure of the first predetermined number, by the first fixed structure with open
Cabinet is closed to be fixedly connected；The switchgear fixing piece is additionally provided with iron core through-hole, for making the battery core of closing coil pass through the iron
Core through-hole does back and forth movement；Wherein, the diameter of the iron core through-hole is greater than the diameter of the battery core of the closing coil；
The motor fixture is provided with the second fixed structure of the second predetermined number, passes through second fixed structure and peripheral hardware
Motor is fixedly connected.
2. the apparatus according to claim 1, which is characterized in that it is solid that the motor fixture is perpendicularly fixed at the switchgear
Determine on part.
3. the apparatus according to claim 1, which is characterized in that the motor fixture is right angle fixing piece.
4. device according to claim 3, which is characterized in that the right angle fixing piece includes that the first right-angle surface and second are straight
Edged surface；
First right-angle surface is for being arranged second fixed structure；
Second right-angle surface with the switchgear fixing piece for being fixedly connected.
5. device according to claim 4, which is characterized in that second right-angle surface includes upper right-angle side and lower right angle
Side；Wherein, the length of the lower right-angle side is greater than the length of the upper right-angle side；
The lower right-angle side is fixedly connected with the switchgear fixing piece.
6. the apparatus according to claim 1, which is characterized in that each first fixed structure is the first pre-set dimension
First through hole；Each second fixed structure is the second through-hole of the second pre-set dimension.
7. device according to claim 6, which is characterized in that between the spacing between each second through-hole is default
Away from.
8. the apparatus according to claim 1, which is characterized in that the making material of described device is metal material.
9. a kind of closing coil support system of switchgear, which is characterized in that including the described in any item switches of claim 1-8
The closing coil base device of cabinet further includes the switchgear connecting with the closing coil base device of the switchgear and peripheral hardware electricity
Machine.
10. system according to claim 9, which is characterized in that the system also includes pass through the closing coil pedestal
The iron core through-hole of device does the iron core of the closing coil of back and forth movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216916.3A CN109921292B (en) | 2019-03-20 | 2019-03-20 | Closing coil base device and system of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216916.3A CN109921292B (en) | 2019-03-20 | 2019-03-20 | Closing coil base device and system of switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109921292A true CN109921292A (en) | 2019-06-21 |
| CN109921292B CN109921292B (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910216916.3A Active CN109921292B (en) | 2019-03-20 | 2019-03-20 | Closing coil base device and system of switch cabinet |
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| Country | Link |
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| CN (1) | CN109921292B (en) |
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| CN204966376U (en) * | 2015-09-07 | 2016-01-13 | 陕西宝鼎开关有限公司 | Spring mechanism and vacuum circuit breaker thereof |
| CN106098488A (en) * | 2015-04-30 | 2016-11-09 | 现代重工业株式会社 | Chopper |
| CN208352238U (en) * | 2018-07-06 | 2019-01-08 | 陕西龙翔电器有限公司 | For the high life divide-shut brake coil in modular mechanism breaker |
| CN209056770U (en) * | 2018-08-22 | 2019-07-02 | 广东电网有限责任公司 | Fixed switching cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0877860A (en) * | 1994-09-02 | 1996-03-22 | Toshiba Corp | Motor-driven spring operating mechanism for switching apparatus and manufacture of coil spring |
| KR20030060204A (en) * | 2002-01-07 | 2003-07-16 | 현대중공업 주식회사 | Motor Spring for Circurt Breaker of 145kV GIS |
| CN201298495Y (en) * | 2008-11-26 | 2009-08-26 | 常州万德福兰陵电器有限公司 | Vacuum circuit breaker capable of removing switching electromagnet conveniently |
| CN102543501A (en) * | 2011-12-02 | 2012-07-04 | 万控集团有限公司 | Circuit-breaker spring actuating mechanism |
| CN203733709U (en) * | 2014-03-12 | 2014-07-23 | 西一电气有限公司 | Installation structure for closing electromagnet of vacuum circuit breaker |
| CN106098488A (en) * | 2015-04-30 | 2016-11-09 | 现代重工业株式会社 | Chopper |
| CN204966376U (en) * | 2015-09-07 | 2016-01-13 | 陕西宝鼎开关有限公司 | Spring mechanism and vacuum circuit breaker thereof |
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| CN209056770U (en) * | 2018-08-22 | 2019-07-02 | 广东电网有限责任公司 | Fixed switching cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109921292B (en) | 2021-02-02 |
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