CN103915301B - Solid insulation vacuum switch three-station isolating grounding switch device - Google Patents
Solid insulation vacuum switch three-station isolating grounding switch device Download PDFInfo
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- CN103915301B CN103915301B CN201410170348.5A CN201410170348A CN103915301B CN 103915301 B CN103915301 B CN 103915301B CN 201410170348 A CN201410170348 A CN 201410170348A CN 103915301 B CN103915301 B CN 103915301B
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- station isolating
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- moving contact
- grounding switch
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Abstract
A kind of solid insulation vacuum switch three-station isolating grounding switch device, by three-station isolating grounding switch operating side, three-station isolating grounding switch, bus interface, outlet terminal, vacuum switch, isolate static contact, grounding contact, epoxy resin housing and end cap composition；It is characterized in that：Pour parallel with vacuum switch of the three-station isolating grounding switch is cast from epoxy resin housing, and is connected by moving contact support with conductive contact finger seat；Grounding contact is installed on by way of rear assembling on end cap or epoxy resin housing；Moving contact supports sealing in epoxy resin housing；Described isolation static contact, which is poured, to be cast from bus interface and is connected with bus interface inner conductor.The present invention need not be cast extra gauze screen in epoxy resin housing, it is easy to accomplish product is minimized, and simplifies manufacturing process；Concentrated in the absence of internal field, even in meeting, product partial discharge quantity under conditions of the accessible position of human body is all grounded is also very low；Reduce the risk of product rejection.
Description
Technical field
It is special the present invention relates to a kind of vacuum switch three-station isolating grounding switch module being used in high-tension switch gear
It is not a kind of solid insulation vacuum switch three-station isolating grounding switch device on solid insulation fully closed combined electrical apparatus.
Background technology
Ring network power supply is the power-supplying forms commonly used in distribution system, and ring main unit is the core component for realizing safe power supply,
Typically divide air insulation, SF6 insulation and the class of solid insulation three.Due to the limitation of air insulation performance, air insulation ring main unit is general
Volume is larger, and floor space is big.And because high-voltage live parts are directly exposed in air, properties of product by with reliability meeting
It is directly affected by environment.SF6 is a kind of extremely strong gas of greenhouse effects, more than 23000 times of about CO2, and pole is not easily decomposed,
Other SF6 ring main units also seriously reduce the hidden danger of product insulating properties in the presence of leakage.
Solid insulation ring main unit by high-voltage live parts sealing by, in epoxy material, utilizing the electrical resistance that epoxy is excellent
Insulation can be realized.Although being equally air in the dielectric of epoxy inside cavity, its volume is far smaller than traditional sky
Gas ring main unit.Because high-voltage live parts are all sealed in epoxy cavity, product is greatly enhanced to the adaptability of environment.Exist in addition
The outer surface of epoxy is coated conductive or semi-conductive layer and has been grounded, and more product reliability is greatly improved.Solid insulation
Have as new technique and also bring new challenge in its unique advantage, same design, i.e., how to realize product miniaturization, absolutely
Edge part obtains relatively low partial discharge quantity while external surface grounded.
Solid insulation ring main unit primary side element mainly include vacuum switch, earthed switch, disconnecting switch, entrance bushing/
, there is sleeve pipe/interface, fuse etc. in interface.And by vacuum switch, earthed switch and/or disconnecting switch are with casting in a mould
It is the mainstay in market in block.Earthed switch and disconnecting switch, which have, in current design makes disconnecting link formula three-station,
Also useful vacuum switch is isolated and grounding function to realize.
Fixed disconnecting link needs to use screw or pin, because the projection of screw or pin can cause electric field to concentrate, from
And reduce the voltage endurance capability of product.Especially for the design of insulating part external ground, it is unfavorable for product miniaturization.This kind of design
Also need to cast gauze screen in epoxy material to improve electric field, manufacturing process is complicated.It can be efficiently controlled with vacuum switch
Electric field, reduces partial discharge quantity, but vacuum switch cost is high, and vacuum switch is due to leaking and the factor such as fracture is invisible in addition
It is not widely accepted also as disconnecting switch.
The content of the invention
For the defect of above-mentioned prior art, the purpose of the design is to provide that a kind of manufacture craft is simple, internal field strength
Uniform, controllable, the external surface grounded miniaturization solid insulation vacuum switch three-station isolating grounding switch device of insulating part.
To achieve these goals, the technical scheme of the design is as follows：
A kind of solid insulation vacuum switch three-station isolating grounding switch device, is operated by three-station isolating grounding switch
End, three-station isolating grounding switch, bus interface, outlet terminal, vacuum switch isolates static contact, grounding contact, epoxy resin
Housing and end cap main element composition；Pour parallel with vacuum switch of the three-station isolating grounding switch casts from epoxy resin shell
In vivo, and by moving contact support it is connected with conductive contact finger seat；Grounding contact is installed on end cap or ring by way of rear assembling
On oxygen resin-case；Moving contact supports sealing in epoxy resin housing；Isolation static contact, which is poured, to be cast from bus interface and and bus
Interface internal conductor is connected.
Described epoxy resin housing is provided with the opening coordinated with end cap in upper end, and lower end is provided with what is coordinated with bus interface
Interface.
Described bus interface is fixedly linked by bolt with epoxy resin housing, and both mating interfaces can be taper,
Taper can be not limited to, can be other bayonet shapes, such a design can ensure the accuracy and sealing of positioning.
The groove for installing conductive contact finger is machined with described conductive contact finger seat.
Described conductive contact finger seat is arranged on by way of rear assembling in moving contact support；
It is removable be fixedly connected between described conductive contact finger seat and moving contact support；It can be threaded connection, but not limit
In threaded connection；Such as it is arranged on by screw in moving contact support.
Described moving contact support is poured together with vacuum switch to be cast from epoxy resin housing, between pass through conductive contact finger seat
With conductive contact finger connection.
Described three-station isolating grounding switch operating side one end passes through removable fixation with three station operating mechanism output shafts
Connected mode is fixed together, and the removable mode that is fixedly connected can be pin connection, and the other end is through grounding contact and absolutely
Edge drive rod is fixed together by the removable mode that is fixedly connected, and the removable mode that is fixedly connected can be threaded connection；Three
Station isolation grounding switch operating side is sealed with grounding contact with sealing ring.
Three described station operating mechanisms are prior art, and motor-driven gear transmission composition may be selected.Pass through motor
Rotating drives three-station isolating grounding switch operating side positive and negative rotation, realizes the diverse location switching of switch.
Described grounding contact both sides are provided with bearing, for supporting three-station isolating grounding switch operating side.
Described three-station isolating grounding switch is moved up and down by moving contact realizes the pass of three-station isolating grounding switch
Close, isolate and be grounded.
Described moving contact is fixedly connected with drive nut.
Described moving contact support inwall is rotated provided with fixed guide pad for limiting moving contact.
Described moving contact two ends are equipped with conductive contact finger, for conducting isolation static contact and moving contact branch when closing position
Support, grounding contact and moving contact support are turned in earthing position.
Described vacuum switch lower end is cast with outlet terminal, and for connecting outlet, upper end passes through screw thread and insulated tension pole
Connection.
Described insulated tension pole is tightly connected with bellows upper end, and bellows lower end is sealingly fastened on end cap, is realized exhausted
Edge pull bar interface and the sealing of epoxy resin shell cavity.
There is seal groove on described epoxy resin housing and the contact surface of end cap, for loading sealing ring, reach asphalt mixtures modified by epoxy resin
Sealing between fat housing and end cap.
Observation window is provided with the left of described epoxy resin housing, the operating position for judging moving contact, epoxy resin shell
Internal side is cast with full skirt.
Position indicator and back-moving spring are installed, moving contact resets when being in ungrounded position inside described moving contact
The total holding position direction board protrusion of spring is outside moving contact；When moving contact is in isolated location, operator can pass through observation window
See position indicator；When moving contact moves to earthing position, grounding contact is by pushing position direction board compression reseting spring.
The method for indicating position on the premise of not increasing product size, can be provided on the premise of contact head insulated distance is not increased
Location identification mark definitely.
This programme design has the following advantages：
1st, all high voltage components at operating position outside table skeleton all by optimization, it is not necessary to poured in epoxy resin housing
Insulation distance needed under the extra gauze screen of casting, product electric fields uniform, identical withstanding voltage is shorter, it is easy to accomplish product is small-sized
Change.Additionally, due to the gauze screen that need not cast, manufacturing process is simplified.
2nd, part surrounding air gap powered under whole module working condition can be set according to design requirement, in the absence of part
Electric field is concentrated, and even in meeting, product partial discharge quantity under conditions of the accessible position of human body is all grounded is also very low.
3rd, in the present invention moving contact support can do it is smaller, more save material because moving contact support is poured and casts from epoxy
In resin-case, its surface electric field value relative atmospheric allowable will be greatly improved, so moving contact support appearance profile requires relatively low,
Part admissible error is higher, and manufacturing process is simpler, and cost is lower.
4th, conductive contact finger seat is assemblied in moving contact support by dismountable mode in the present invention, compared to direct pouring
Mode in epoxy resin housing, it is to avoid forget to load conductive contact finger and cause before damaging or cast due to conductive contact finger
The risk of whole product rejection.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is structural principle composition of the present invention.
Embodiment
As shown in figure 1, a kind of solid insulation vacuum switch three-station isolating grounding switch device, including the isolation of three stations connect
Ground switching manipulation end 1, three-station isolating grounding switch 3, bus interface 11, outlet terminal 13, vacuum switch 16, epoxy resin shell
Body 18 and end cap 20.The three-station isolating grounding switch 2 and vacuum switch 16 are horizontally disposed in same air chamber, and lead to
Cross moving contact support 6 to be connected with conductive contact finger seat 15, the groove for installing conductive contact finger is machined with inside conductive contact finger seat 15；Ground connection is touched
First 2 are installed on by way of rear assembling on end cap 20 or epoxy resin housing 18.Moving contact supports 6 sealings in epoxy resin shell
Body 18；Isolation static contact 12, which is poured, to be cast from bus interface 11 and is connected with the inner conductor of bus interface 11.
The one end of three-station isolating grounding switch operating side 1 is connected with three station operating mechanisms, and the other end passes through grounding contact 2
It is fixed together with insulation drive rod 4.Three-station isolating grounding switch operating side 1 can also make with insulation drive rod 4
One.Three-station isolating grounding switch operating side 1 is sealed with grounding contact 2 by sealing ring.The both sides of grounding contact 2 are provided with axle
Hold, for supporting three-station isolating grounding switch operating side 1.
Grounding contact 2 and the moving contact support 6 of three-station isolating grounding switch 3 distinguishes sealing in end cap 20 and epoxy resin
Housing 18, and isolate static contact 12 and pour and cast from bus interface 11 and be connected with the inner conductor of bus interface 11；Bus interface 11
It is fixedly linked by bolt with epoxy resin housing 18；Both mating interfaces do tapered, other certain bayonet shapes can also,
Such a design can ensure the accuracy and sealing of positioning.
Moving contact supports and two perforates is machined on 6 side walls, and guide pad 7 is pressed into perforate and casts in asphalt mixtures modified by epoxy resin before casting
In fat housing 18.Moving contact 9 moves up and down in moving contact support 6 and realizes closing for three-station isolating grounding switch, isolation with
And be grounded, its motion implementation is：Three station operating mechanisms drive insulation to drive by three-station isolating grounding switch operating side 1
Lever 4 is rotated, and drives the drive nut 10 being fixed together with moving contact 9.Rotated because guide pad 7 can limit moving contact 9,
So that drive nut 10 and moving contact 9 can only move up and down.The two ends of moving contact 9 are equipped with conductive contact finger 8, for turning on moving contact 9
Circuit between other parts.
Pour and cast from epoxy resin housing together with vacuum switch 14 and moving contact support 6, pass through conductive contact finger between them
Seat 15 and conductive contact finger connection.The lower end of vacuum switch 14 is cast with the outlet terminal 13 for connecting outlet, and upper end passes through spiral shell
Line is connected with insulated tension pole 17.Insulated tension pole 17 is tightly connected with the upper end of bellows 21, and the lower end of bellows 21 is sealingly fastened in end
On lid 20, the sealing of the interface of insulated tension pole 17 and the cavity of epoxy resin housing 18 is realized.Epoxy resin housing 18 and end cap 20
There is seal groove 19 on contact surface, for loading the sealing of sealing ring realization therebetween.All high-voltage live parts are all after assembling
Degree of protection up to IP68 is sealed by epoxy resin, module can normally be run under water.The outer surface of epoxy material is scribbled
Conductive or semi-conductive layer is used to be grounded, and so ensures that the accessible region of whole module all in low potential.
The left side of epoxy resin housing 18 is provided with observation window 5, the operating position for judging moving contact 9, improves operation peace
Quan Xing.Its feasible implementation is：It is provided with inside moving contact 9 at position indicator 22 and back-moving spring 23, moving contact 9
The total holding position direction board 22 of back-moving spring is protruded outside moving contact 9 when ungrounded position.When moving contact 9 is in isolated bit
Put, operator can see position indicator 22 by observation window 5.When moving contact 9 moves to earthing position, grounding contact 2
By the compression reseting spring of pushing position direction board 22.The method for indicating position is not on the premise of contact head insulated distance is increased, i.e.,
On the premise of not increasing product size, location identification mark definitely can be provided.Climbed to be met in the confined space
Electrical distance requirement, the inner side of epoxy resin housing 18 is cast with full skirt.
Claims (10)
1. a kind of solid insulation vacuum switch three-station isolating grounding switch device, by three-station isolating grounding switch operating side,
Three-station isolating grounding switch, bus interface, outlet terminal, vacuum switch isolates static contact, grounding contact, epoxy resin shell
Body and end cap composition；It is characterized in that：Pour parallel with vacuum switch of the three-station isolating grounding switch casts from epoxy resin
In housing, and it is connected by moving contact support with conductive contact finger seat；Grounding contact be installed on by way of rear assembling end cap or
On epoxy resin housing；Moving contact supports sealing in epoxy resin housing；Described isolation static contact, which is poured, to be cast from bus interface
And be connected with bus interface inner conductor；Position indicator and back-moving spring are installed inside described moving contact；At moving contact
The total holding position direction board protrusion of back-moving spring is outside moving contact when ungrounded position；When moving contact is in isolated location, behaviour
Author can see position indicator by observation window；When moving contact moves to earthing position, grounding contact is by pushing position
Direction board compression reseting spring.
2. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
The epoxy resin housing stated is provided with the opening coordinated with end cap in upper end, and lower end is provided with the interface coordinated with bus interface.
3. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1 or 2, its feature exists
In：Described bus interface is fixedly linked by bolt with epoxy resin housing, and both mating interfaces are taper.
4. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
The conductive contact finger seat stated is arranged on by way of rear assembling in moving contact support, and mounting means is fixedly connected to be removable.
5. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
The three-station isolating grounding switch operating side one end stated is consolidated with three station operating mechanism output shafts by the removable mode that is fixedly connected
Surely link together, the other end is fixedly connected on one with insulation drive rod through grounding contact by the removable mode that is fixedly connected
Rise；Sealed between three-station isolating grounding switch operating side and grounding contact with sealing ring.
6. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
The grounding contact both sides stated are provided with bearing, support three-station isolating grounding switch operating side.
7. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
The moving contact support inwall stated is rotated provided with fixed guide pad for limiting moving contact.
8. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
It is removable be fixedly connected between the conductive contact finger seat stated and moving contact support.
9. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：Institute
The groove for installing conductive contact finger is machined with the conductive contact finger seat stated.
10. solid insulation vacuum switch three-station isolating grounding switch device according to claim 1, it is characterised in that：
Described moving contact two ends are equipped with conductive contact finger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170348.5A CN103915301B (en) | 2014-04-25 | 2014-04-25 | Solid insulation vacuum switch three-station isolating grounding switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170348.5A CN103915301B (en) | 2014-04-25 | 2014-04-25 | Solid insulation vacuum switch three-station isolating grounding switch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103915301A CN103915301A (en) | 2014-07-09 |
| CN103915301B true CN103915301B (en) | 2017-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410170348.5A Active CN103915301B (en) | 2014-04-25 | 2014-04-25 | Solid insulation vacuum switch three-station isolating grounding switch device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104124640B (en) * | 2014-08-08 | 2017-03-15 | 麦克奥迪（厦门）电气股份有限公司 | A kind of solid insulation switch |
| CN107947007A (en) * | 2017-12-22 | 2018-04-20 | 上海攀森电气设备有限公司 | A kind of novel shielding type solid insulation switch module |
| CN112614741B (en) * | 2020-12-14 | 2022-07-12 | 北京双杰电气股份有限公司 | Three-station instantaneous direct-acting solid insulation circuit breaker |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2911947Y (en) * | 2006-06-12 | 2007-06-13 | 丁文军 | State indicator of circuit breaker |
| CN101677177A (en) * | 2008-09-19 | 2010-03-24 | 沈阳昊诚电力科技有限公司 | Epoxy pouring type solid insulation switch with three-cabin |
| CN102013354A (en) * | 2010-12-29 | 2011-04-13 | 常州森源力拓开关有限公司 | Three-station isolating switch |
| CN102420399A (en) * | 2011-08-19 | 2012-04-18 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
| CN202473734U (en) * | 2012-03-23 | 2012-10-03 | 中能电气（福清）有限公司 | Embedded pole unit for solid insulated switchgear |
| CN102810426A (en) * | 2011-06-01 | 2012-12-05 | 北京维益埃电气有限公司 | Combined type vacuum circuit breaker |
| CN203312132U (en) * | 2013-06-27 | 2013-11-27 | 北京清畅电力技术股份有限公司 | Three-position solid insulation isolation switch |
| CN203826329U (en) * | 2014-04-25 | 2014-09-10 | 协励行(厦门)电气有限公司 | Three-position isolated ground switch device for solid insulation vacuum switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2005253220B2 (en) * | 2004-06-09 | 2008-10-23 | Abb Technology Ag | Gas-Insulated Switchgear Assembly |
-
2014
- 2014-04-25 CN CN201410170348.5A patent/CN103915301B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2911947Y (en) * | 2006-06-12 | 2007-06-13 | 丁文军 | State indicator of circuit breaker |
| CN101677177A (en) * | 2008-09-19 | 2010-03-24 | 沈阳昊诚电力科技有限公司 | Epoxy pouring type solid insulation switch with three-cabin |
| CN102013354A (en) * | 2010-12-29 | 2011-04-13 | 常州森源力拓开关有限公司 | Three-station isolating switch |
| CN102810426A (en) * | 2011-06-01 | 2012-12-05 | 北京维益埃电气有限公司 | Combined type vacuum circuit breaker |
| CN102420399A (en) * | 2011-08-19 | 2012-04-18 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
| CN202473734U (en) * | 2012-03-23 | 2012-10-03 | 中能电气（福清）有限公司 | Embedded pole unit for solid insulated switchgear |
| CN203312132U (en) * | 2013-06-27 | 2013-11-27 | 北京清畅电力技术股份有限公司 | Three-position solid insulation isolation switch |
| CN203826329U (en) * | 2014-04-25 | 2014-09-10 | 协励行(厦门)电气有限公司 | Three-position isolated ground switch device for solid insulation vacuum switch |
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| CN103915301A (en) | 2014-07-09 |
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Effective date of registration: 20160322 Address after: 361006 Mike building, torch high tech Industrial Development Zone, Huli District, Fujian, Xiamen, China Applicant after: AI Kai (Xiamen) Electric Technology Co., Ltd. Address before: 361006 Mike building, torch high tech Industrial Development Zone, Huli District, Fujian, Xiamen, China Applicant before: SPEED FAIR (XIAMEN) CO., LTD. |
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