CN104124640B - A kind of solid insulation switch - Google Patents
A kind of solid insulation switch Download PDFInfo
- Publication number
- CN104124640B CN104124640B CN201410388379.8A CN201410388379A CN104124640B CN 104124640 B CN104124640 B CN 104124640B CN 201410388379 A CN201410388379 A CN 201410388379A CN 104124640 B CN104124640 B CN 104124640B
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- Prior art keywords
- switch
- conductor
- insulation
- vacuum interrupter
- solid insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 81
- 239000007787 solid Substances 0.000 title claims abstract description 39
- 239000004020 conductor Substances 0.000 claims abstract description 101
- 230000003068 static effect Effects 0.000 claims description 17
- 239000004677 Nylon Substances 0.000 claims description 7
- 229920001778 nylon Polymers 0.000 claims description 7
- 238000013022 venting Methods 0.000 claims description 6
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 239000011810 insulating material Substances 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 6
- 238000011161 development Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 9
- 239000004593 Epoxy Substances 0.000 description 6
- 238000002955 isolation Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a kind of solid insulation switch, including the insulation shell that outside scribbles ground plane, disconnecting switch, earthed switch and vacuum interrupter is provided with the insulation shell, the structure of the solid insulation switch is symmetrical, and the disconnecting switch and earthed switch, vacuum interrupter are arranged on its left and right sides with being respectively symmetrically.The invention has benefit that：By disconnecting switch, earthed switch and breaker take symmetrical structure cast together with so as to the volume for reducing equipment reduces assembling link simultaneously, various line modes are easy in the design being arranged symmetrically, and improve the versatility of different switch cubicle schemes, minimizing development cost；The design that gas fracture in solid insulation structure is optimized using conductor shielding, so that the length of gas fracture is minimum, has given play to the advantage of the high disruptive field intensity of solid insulating material so that whole equipment size is reduced, and whole insulation system is compacter.
Description
Technical field
The present invention relates to the one kind in the field of electrical equipment in power system, more particularly to high-voltage switch equipment is solid
Body insulated switch.
Background technology
Therefore solid insulation switch compares environmental protection as SF6 gases are not used.For ensureing that human body is touched without danger in operation
Danger, its outer surface are coated with the conductor or coated semiconductor of ground connection；By using the higher tolerance field intensity of solid insulating material with
And more good radiating, solid-state insulated switchgear structure is compacter.
At present, simply use solid insulation housing to wrap up wherein, not main switch element in solid insulation switch cabinet
The advantage of solid insulation can be really embodied, while volume effectively can not reduce.As exocuticle is grounded, thus it is difficult control and produces
The office of product puts.
As bag is in epoxy enclosure interior, therefore the main components of solid insulation switch cannot see that its fracture can not
Judge the powered situation of its each several part.
Patent CN200810013281.9 discloses a kind of epoxy pouring solid insulation switch with double-isolation, and which includes epoxy shell
Three internal identical Switch main bodies, Switch main body include vacuum interrupter and the upper and lower disconnecting switch of two identicals；On every
Leave pass, vacuum explosion-chamber cabin and lower disconnecting switch to be mutually permanently connected, upper disconnecting switch is located above vacuum explosion-chamber cabin,
Lower disconnecting switch is located at below vacuum explosion-chamber cabin and to be horizontally mounted direction identical with upper disconnecting switch, right angle setting direction with
Upper disconnecting switch is relative；As which adopts three chambeies arrangement overall structure larger.And energized conductor direct part is poured in epoxy, ring
Oxygen acts primarily as the effect of fixed conductor, does not effectively shield at conductor and three friendships of epoxy and air, thus often goes out in operation
Current situation puts the accident of exceeded and insulation breakdown.The structure can not reliably judge the powered situation of each several part simultaneously.
Patent CN 201310318932.6 discloses a kind of solid insulation pole, it include in be provided with disconnecting switch, ground connection
Switch and the insulation shell of vacuum interrupter；The static side part of the static side part of the earthed switch and the disconnecting switch has
Interior setting shares the sub moved end common-use tunnel with operating mechanism in moved end；The disconnecting switch and earthed switch constitute coaxial direct acting
Three station structures.Radome is respectively arranged with two sides of isolation switch insulation cylinder and earthed switch insulating cylinder.When cupboard is taken not
After with line mode, matched product such as bus casing, fuse unit etc. needs to redesign.Three station of direct acting and open circuit
Device fails to be effectively isolated, and easily producing impact on the arc extinguishing of vacuum interrupter causes failure of interruption, and three station of direct acting and open circuit
Device one air cavity of each self-forming, is unfavorable for that internal gas flow exchanges heat, and causes product heating larger.
Content of the invention
Larger in order to solve overall volume in solid insulation switch, internal electric field skewness heat dispersion difference and cannot
Put with office by monitoring device is powered, while being unfavorable for the problems such as various cupboard schemes are general, the present invention provides a kind of solid insulation
Switch.Isolation earthing switch and breaker are symmetrically cast integral, be easy to the versatility for improving various switch cubicle arrangements, subtract
Few development cost, is made electrical contact with while being optimized in solid insulation structure by conductor shielding by taking three station of direct acting and sliding
The design of gas fracture, has played the advantage of the high disruptive field intensity of solid insulating material so that whole equipment size is reduced,
Equipment is more compact；Breaker and disconnecting switch are divided into two parts using spray zinc layers also simultaneously, elimination they it is not only improved
Between mutual electromagnetic affect the radiating effect for simultaneously also improving product；It is provided with the sensor with function of shielding and is provided with explosion-proof
Mouth and form cause the solid insulation switch that there is higher reliability.
The present invention is adopted the following technical scheme that：A kind of solid insulation switch, including the insulation shell that outside scribbles ground plane,
Disconnecting switch, earthed switch and vacuum interrupter is provided with the insulation shell, and the structure of the solid insulation switch is in left and right
Symmetrically, the disconnecting switch and earthed switch, vacuum interrupter are arranged on its left and right sides with being respectively symmetrically.
Preferably, the disconnecting switch and vacuum interrupter are provided with clearance for insulation between the two.
Further, the top layer of the clearance for insulation is provided with ground plane.
Preferably, the lower end of the insulation shell is provided with venting, and the venting is alternatively insulation transparent material and makes and fills
Work as observation window.
Further, the static side part of the disconnecting switch is made up of inlet wire conductor, full skirt insulating cylinder and middle conductor, institute
The static side part for stating earthed switch is made up of middle conductor, earth conductor, one end of the middle conductor and the inlet wire conductor
It is attached by full skirt insulating cylinder, the static side part of the static side part of the disconnecting switch and earthed switch has and is sequentially communicated
The public passage of earth conductor, middle conductor, full skirt insulating cylinder and inlet wire conductor, is provided with moving-conductor and drive in the public passage
The operating mechanism of the dynamic moving-conductor movement；The static side of the vacuum interrupter is connected with outlet conductor, the vacuum interrupter
Moved end on be set with a conductive slider, the moved end of the vacuum interrupter is turned on middle conductor by conductive slider, described true
The moved end of empty arc-chutes is provided with gauze screen, and the lower end side at the two ends of the full skirt insulating cylinder and the middle conductor is equipped with
Gauze screen.
Further, the operating mechanism includes the screw mandrel that insulate, and the insulation screw mandrel is pivotally connected with inlet wire conductor, described
Moving-conductor is threadedly coupled with insulation screw mandrel, and the earth conductor, middle conductor and inlet wire conductor pass through its corresponding public passage
Spring touch finger or watchband-shaped contactor is provided with, is electrically connected with moving-conductor；The insulation screw mandrel has the behaviour for stretching out the insulation shell
Make part.
Further, the public passage lower end is communicated with the lower end of breaker.
Further, sensor is provided with the inlet wire conductor and outlet conductor corresponding enclosure interior.
Further, the sensor includes wire netting or by nylon wire moulding by casting, that there is conducting function, described
The both sides of wire netting or nylon wire are provided with the circle that turns up, the hole of array arrangement diameter≤5mm on wire side.
Further, the insulation shell is epoxy resin housing, and the disconnecting switch and earthed switch are copper piece
Or aluminum component.
The invention has benefit that：
1st, by disconnecting switch, earthed switch and breaker take symmetrical structure cast together with so as to reducing the body of equipment
Product reduces assembling link simultaneously, and various line modes are easy in the design being arranged symmetrically, and improves the general of different switch cubicle schemes
Property, reduce development cost；
2nd, by taking while three station of direct acting and slip electrical contact, solid insulation structure is optimized using conductor shielding
The design of middle gas fracture, so that the length of gas fracture is minimum, has given play to the excellent of the high disruptive field intensity of solid insulating material
Gesture so that whole equipment size is reduced, whole insulation system is compacter；
3rd, the voltage gradient of the clearance for insulation between disconnecting switch and vacuum interrupter（Over the ground or fracture）On direction, lead to
Cross spray zinc layers by breaker and disconnecting switch be divided into two parts not only improve eliminate they between mutual electromagnetic affect, while
Improve the radiating effect of product；
4 while bring the sensor with function of shielding in ground plane terminus inner, the sensor can detect product
Office puts or voltage.Meanwhile, product is provided with the transparent windows that insulating materials is made, the function visual so as to realize fracture.
Description of the drawings
Fig. 1 is the solid insulation switch of the present invention（Disconnecting switch "on" position）Internal structure schematic diagram；
Fig. 2 is the solid insulation switch of the present invention（Disconnecting switch gate-dividing state）Internal structure schematic diagram；
Fig. 3 is the solid insulation switch of the present invention（Earthed switch "on" position）Internal structure schematic diagram；
Structural representations of the Fig. 4 for the wire netting of sensor of the invention：
Fig. 5 is the structural representation of the gauze screen of the present invention；
Reference：1st, ground plane；2nd, insulation shell；3rd, inlet wire conductor；4th, middle conductor；5th, earth conductor；6th, move and lead
Body；7th, insulate screw mandrel；8th, insulated tension pole；9th, conductive slider；10th, vacuum interrupter；11st, outlet conductor；12nd, clearance for insulation；
201st, full skirt insulating cylinder；202（203）, sensor；301（401、402、403）, gauze screen；204th, venting.
Specific embodiment
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail.
As Figure 1-5, a kind of solid insulation switch, including the insulation shell 2 that outside scribbles ground plane 1, the insulation
Disconnecting switch, earthed switch and vacuum interrupter 10 are provided with housing 2, the structure of the solid insulation switch is symmetrical,
Will be symmetrical and cast integral to isolation, earthed switch and breaker.The disconnecting switch and earthed switch, vacuum interrupter
10 are arranged on its left and right sides with being respectively symmetrically.Inlet wire conductor therein 3 can be according to the arrangement of switch cubicle with outlet conductor 11
Require, function is mutually replaced, such as from breaker side inlet wire.The components and parts being matched therewith avoid the need for redesigning,
Versatility is stronger.Ground plane 1 can pass through to spray conducting or semiconducting paint or glue.Also can be formed by metal spraying, the present embodiment
Middle employing sprays zinc technology.
Inlet wire conductor 3, middle conductor 4 and earth conductor 5 are formed independent isolation and is grounded three station structures.Moving-conductor 6
Realize moving in public passage by the helicitic texture being engaged with insulation screw mandrel 7, pass through between moving-conductor 6 and other each conductors
Spring touch finger or watchband-shaped contactor realize electrical contact.In the present embodiment, the static side part of disconnecting switch is by inlet wire conductor 3, umbrella
Skirt insulating cylinder 201 and middle conductor 4 are constituted, and the static side part of earthed switch is made up of middle conductor 4, earth conductor 5, and centre is led
One end of body 4 and the inlet wire conductor 3 are attached by full skirt insulating cylinder 201, and the static side part of disconnecting switch and ground connection are opened
The static side part of pass leads to the public of earth conductor 5, middle conductor 4, full skirt insulating cylinder 201 and inlet wire conductor 3 is sequentially communicated
Road, is provided with moving-conductor 6 and drives the operating mechanism of the movement of moving-conductor 6 in public passage；The static side of vacuum interrupter 10 with
Outlet conductor 11 connects, and is set with a conductive slider 9 on the moved end of vacuum interrupter 10, and the moved end of vacuum interrupter 10 is by conduction
Slide block 9 is turned on middle conductor 4, and conductive slider 9 realizes electrical contact with middle conductor 4 by spring touch finger or watchband-shaped contactor.
The moved end of vacuum interrupter 10 is provided with gauze screen 403, for the Electric Field Distribution of uniform breaker lower end.In full skirt insulating cylinder
The lower end side of 201 two ends and the middle conductor 4 is equipped with gauze screen 301（401、402）.Operating mechanism includes the screw mandrel that insulate
7, insulation screw mandrel 7 is pivotally connected with inlet wire conductor 3, and moving-conductor 6 is threadedly coupled with insulation screw mandrel 7, earth conductor 5, middle conductor 4
Spring touch finger or watchband-shaped contactor are provided with by its corresponding public passage with inlet wire conductor 3, are electrically connected with moving-conductor 6；Insulation
Screw mandrel 7 has the operation part for stretching out the insulation shell 2.While taking three station of direct acting and sliding electrical contact, use
Conductor shielding optimizes the design of gas fracture in solid insulation structure, so that the length of gas fracture is minimum, has given play to solid
The advantage of the high disruptive field intensity of body insulating materials so that whole equipment size is reduced, whole insulation system is compacter.
Disconnecting switch and vacuum interrupter are provided with clearance for insulation 12 between the two, and the top layer of clearance for insulation 12 is provided with ground connection
Layer.Make not influence each other between two parts and be conducive to product to radiate.
The lower end of insulation shell 2 is provided with the venting 204 of transparent insulation, is easy to observe three station fractures.The venting
Can make for insulation transparent material and serve as observation window.Public passage lower end is communicated with the lower end of breaker.In the present embodiment, every
Communicate with breaker lower end from three station lower ends of ground connection, be easy to internal gas flow to exchange heat.
Sensor 202 is provided with inlet wire conductor 3 and 11 corresponding enclosure interior of outlet conductor（203）.Sensor can
Detection voltage or product office put.As shown in figure 4, sensor 202（203）Including wire netting or by moulding by casting, have conduction
The both sides of the nylon wire of function, wire netting or nylon wire are provided with the circle that turns up, the hole of array arrangement diameter≤5mm on wire side, improve
Casting quality in insulating materials.
Insulation shell 2 is epoxy resin housing, and the disconnecting switch and earthed switch are copper piece or aluminum component.
The course of work of the present invention is as Figure 1-3：
Fig. 1, is disconnecting switch "on" position, and moving-conductor 6 moves to upper end and inlet wire conductor 3 forms electrical contact, high potential
Middle conductor 4 forms gas fracture over the ground with earth conductor 5.
Fig. 2, is disconnecting switch gate-dividing state, and moving-conductor 6 is in 4 centre position of middle conductor, with inlet wire conductor 3 formed every
Detachment mouth.
Fig. 3, is earthed switch "on" position, and moving-conductor 6 moves to lower end and earth conductor 5 forms electrical contact.
In order to solve the field intensity concentration of above-mentioned state mesohigh conductor and three medium intersection of epoxy resin and inner air
Problem, the gauze screen 301 of setting（401、402）, by high voltage induction in insulation shell 2 so as to effectively reduce fracture away from
From.In order to ensure epoxy of the creep age distance between height potential conductors in fracture inner chamber with the full skirt for meeting standard requirement.On
State gauze screen 301（401、402）, as shown in figure 5, being coaxial cylindrical structure, its outer end is toward inner side crimping in order to uniform end
Electric Field Distribution, be that its side of circulation of insulating materials when ensureing cast is provided with the array through-hole of diameter≤8.The gauze screen
Process for wire netting or the nylon wire that band has conductivity is molded.
Earth conductor 5 can be fixed on the lower end of insulation shell 2 by support, or be directly anchored on bottom panel.
Concrete installation of the invention is produced as follows：First precoat and cast out full skirt insulating cylinder 201, gauze screen is installed on each conductor
On；201 outer surface of full skirt insulating cylinder is carried out surface coarsening by sandblasting or spray bead etc. again to process to lift its combination by force
Degree；Using related assembly tooling by inlet wire conductor 3, full skirt insulating cylinder 201, middle conductor 4, vacuum interrupter 10 and outlet conductor
After 11 are linked together by appropriate interference fit, inlet wire conductor 3 that sensor 202 and 203 is packed into upper connector respectively
And outlet conductor 11；Debugging loads in mould in place afterwards, then sensor 202 and 203 is fixed on mould, by heat cured
Epoxy resin sealing is together.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
In vain, in the spirit and scope of the present invention limited without departing from appended claims, in the form and details to this
Bright make a variety of changes, be protection scope of the present invention.
Claims (7)
1. a kind of solid insulation switch, including the insulation shell that outside scribbles ground plane, is provided with the insulation shell and keeps apart
Pass, earthed switch and vacuum interrupter, the structure of the solid insulation switch are symmetrical, and the disconnecting switch and ground connection are opened
Close, vacuum interrupter is arranged on its left and right sides with being respectively symmetrically；The static side part of the disconnecting switch is by inlet wire conductor, full skirt
Insulating cylinder and middle conductor are constituted, and the static side part of the earthed switch is made up of middle conductor, earth conductor, and the centre is led
One end of body and the inlet wire conductor are attached by full skirt insulating cylinder, the static side part of the disconnecting switch and earthed switch
Static side part have and be sequentially communicated the public passage of earth conductor, middle conductor, full skirt insulating cylinder and inlet wire conductor, the public affairs
Moving-conductor is provided with common road and drives the operating mechanism of the moving-conductor movement；The static side of the vacuum interrupter is led with outlet
Body connects, and is set with a conductive slider on the moved end of the vacuum interrupter, and the moved end of the vacuum interrupter passes through conductive slider
Turn on middle conductor, the moved end of the vacuum interrupter is provided with gauze screen, at two ends of the full skirt insulating cylinder and described
The lower end side of middle conductor is equipped with gauze screen；Characterized in that, in the inlet wire conductor and the corresponding housing of outlet conductor
Portion is provided with sensor.
2. a kind of solid insulation switch as claimed in claim 1, it is characterised in that the disconnecting switch and vacuum interrupter two
Clearance for insulation is provided between person.
3. a kind of solid insulation switch as claimed in claim 2, it is characterised in that the top layer of the clearance for insulation is provided with ground connection
Layer.
4. a kind of solid insulation switch as claimed in claim 1, it is characterised in that the lower end of the insulation shell is provided with explosion-proof
Mouthful, the venting is made up of insulation transparent material and serves as observation window.
5. a kind of solid insulation switch as described in any one of claim 1-4, it is characterised in that the operating mechanism includes absolutely
Periphysis bar, the insulation screw mandrel are pivotally connected with inlet wire conductor, and the moving-conductor is threadedly coupled with insulation screw mandrel, and the ground connection is led
Body, middle conductor and inlet wire conductor are provided with spring touch finger or watchband-shaped contactor by its corresponding public passage, with moving-conductor electricity
Connection；The insulation screw mandrel has the operation part for stretching out the insulation shell.
6. a kind of solid insulation switch as claimed in claim 1, it is characterised in that the sensor includes wire netting or cast
The both sides of nylon wire shaping, that there is conducting function, the wire netting or nylon wire are provided with the circle that turns up, array arrangement on wire side
The hole of diameter≤5mm.
7. a kind of solid insulation switch as claimed in claim 6, it is characterised in that the insulation shell is epoxy resin shell
Body, the disconnecting switch and earthed switch are copper piece or aluminum component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388379.8A CN104124640B (en) | 2014-08-08 | 2014-08-08 | A kind of solid insulation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388379.8A CN104124640B (en) | 2014-08-08 | 2014-08-08 | A kind of solid insulation switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104124640A CN104124640A (en) | 2014-10-29 |
| CN104124640B true CN104124640B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410388379.8A Active CN104124640B (en) | 2014-08-08 | 2014-08-08 | A kind of solid insulation switch |
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| Country | Link |
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| CN (1) | CN104124640B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377554A (en) * | 2014-11-28 | 2015-02-25 | 南通东源协力电器有限公司 | Internal shield ring of shield sleeve used for switch cabinet |
| CN105514817A (en) * | 2015-12-24 | 2016-04-20 | 平高集团有限公司 | Main loop of solid insulation cabinet and solid insulation cabinet using same |
| CN108807068B (en) * | 2017-04-26 | 2022-11-04 | 伊顿电力设备有限公司 | Solid insulating cylinder |
| CN108091519A (en) * | 2018-01-25 | 2018-05-29 | 珠海康晋电气股份有限公司 | A kind of tangibly pole device |
| US11962133B2 (en) * | 2021-11-11 | 2024-04-16 | S&C Electric Company | Air insulated switch with very compact gap length |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009071907A (en) * | 2007-09-10 | 2009-04-02 | Toshiba Corp | Solid insulation switchgear and insulation test method thereof |
| CN102360986A (en) * | 2011-09-21 | 2012-02-22 | 王丁丁 | Sealed full vacuum switching device |
| CN103915301B (en) * | 2014-04-25 | 2017-10-10 | 爱启（厦门）电气技术有限公司 | Solid insulation vacuum switch three-station isolating grounding switch device |
| CN203983828U (en) * | 2014-08-08 | 2014-12-03 | 麦克奥迪（厦门）电气股份有限公司 | A kind of solid insulation switch |
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| CN104124640A (en) | 2014-10-29 |
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Effective date of registration: 20201117 Address after: No.4a-5, No.810 Fangshan South Road, torch high tech Zone (Xiang'an) Industrial Zone, Xiamen City, Fujian Province Patentee after: Macaudi (Xiamen) Intelligent Electric Co.,Ltd. Address before: 361102 Fujian Province, Xiamen city Xiangan District torch hi tech Zone (Xiangan) Industrial Zone Fang Mountain Road No. 808 Patentee before: MOTIC (XIAMEN) ELECTRIC GROUP Co.,Ltd. |
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