CN206195231U - Adopt environmental protection gas -insulated's isolation breaker - Google Patents
Adopt environmental protection gas -insulated's isolation breaker Download PDFInfo
- Publication number
- CN206195231U CN206195231U CN201621314681.XU CN201621314681U CN206195231U CN 206195231 U CN206195231 U CN 206195231U CN 201621314681 U CN201621314681 U CN 201621314681U CN 206195231 U CN206195231 U CN 206195231U
- Authority
- CN
- China
- Prior art keywords
- isolator
- breaker
- disconnecting switch
- circuit breaker
- switch
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses an adopt environmental protection gas -insulated's isolation breaker, including circuit breaker and isolator, the circuit breaker comprises circuit breaker body and circuit breaker operating device, and isolator comprises isolator body and isolator operating device, arrange about circuit breaker body and isolator body and install in sealed box, be full of environmental protection gas in the box, the isolator static contact is except that the contact part branch is located insulation utmost point post, and all the other parts are sealed admittedly in insulating utmost point post, and the isolator static contact is connected with vacuum interrupter's the conducting rod that moves through the flexible coupling that can electrically conduct, grounding contact fixed connection is on the isolator operating axis. The utility model discloses design into a whole with circuit breaker and isolator to design the isolator static contact on the insulating utmost point post of circuit breaker, isolator grounding contact designs on the isolator operating axis, can reduce the space that circuit breaker and isolator occupy greatly, makes whole switchgear's structure compacter.
Description
Technical field
The utility model is related to a kind of isolation circuit breakers, more particularly to a kind of using the gas isolated isolation open circuit of environmental protection
Device, category High-Voltage Electrical Appliances field.
Background technology
Earliest 12KV ring main units are air using alternate and relatively dielectric in air insulation, i.e. cabinet,
Because between three-phase and relatively there must be enough dielectric strengths, it requires its air clearance from >=125mm, therefore open circuit
The volume of device and disconnecting switch is larger, so that the volume of ring main unit also increases therewith, it is wide × deep × high by about 1100 × 1100
×2200mm3.With advances in technology with saving floor space, it is desirable to which ring main unit is minimized, then there is exhausted using SF6 gases
The ring main unit of edge, i.e., be fitted into breaker and disconnecting switch in one closed casing filled with SF6 gases, the phase of device for switching
Between and dielectric relatively be SF6 gases.Because SF6 gases have superior arc extinction performance and insulating properties, so phase
For air insulation, alternate and relatively distance is reduced a lot, thus the size of ring main unit is also reduced a lot, its
It is wide × deep × high minimum to accomplish 370 × 1000 × 1500mm3.But, SF6 is greenhouse gases, is filled with casing
SF6 gas pressures are about 6 times of atmospheric pressure, and this just inevitably results from the leakage of SF6 gases, and dirt is caused to air
Dye, is unsatisfactory for the requirement of environmental protection.Then there is the ring main unit using solid insulation in recent years, exactly device for switching element and lead
In the insulator suppressed with insulating materials, alternate and relatively dielectric is solid insulating material to body sealing, thus
SF6 gases have been abandoned completely, and cabinet is still minimized.But, the solid insulation ring main unit of the current actual motion of China all can not
Solid insulation referred to as truly, applicable cases in recent years show that solid insulation ring main unit there is also some problems, than
There is no sealing in insulating materials such as wherein disconnecting switch, be still by air insulation rather than solid insulation, therefore unavoidably
Bury and get over therefore hidden danger, some accidents are even fatal, such as short trouble for causing by condensation etc., in fact, this
The accident of sample had occurred and that multiple in recent years.
Then people again return to the sight of concern and come above air insulation, but simple air insulation clearly can not
Meet what is required, its main cause is that humidity is changed greatly, and humidity is a key factor for influenceing switchgear performance, it is wet
Degree is bigger, and apparatus insulated destroyed probability is bigger.Therefore people consider using dry air, nitrogen or nitrogen and dry empty
Breaker and disconnecting switch are mounted in the casing of the sealing full of these gases as the dielectric of switch for the mixed gas of gas
In, thus can be the humid control around device for switching in relatively low scope, the switch in containment housing is not by the external world
The influence of moisture, it is ensured that the safe operation of switchgear, simultaneously as with dry air as dielectric so that alternate,
Relatively with the air clearance of isolation fracture from than using the small of normal air insulation, the volume of switch can also accomplish small-sized
Change, and dry air, nitrogen etc. do not pollute to air, are a kind of environmentally friendly gas.
Using environmentally friendly gas-insulated, alternate and insulation distance need >=100mm relatively, the insulation distance of isolation fracture is needed
>=120mm, such as simply arranges breaker, disconnecting switch primary element according to traditional design, switchgear
Volume will not be more much smaller than air insulation, therefore is considered as a kind of brand-new design, make using environmental protection it is gas isolated switch and
Switchgear realizes miniaturization, thus produces technical solutions of the utility model.
The content of the invention
The purpose of this utility model be provide a kind of compact conformation, small volume it is disconnected using the gas isolated isolation of environmental protection
Road device.
The environmentally friendly gas isolated isolation circuit breakers of use that the utility model is provided, including breaker and disconnecting switch, break
Road device is made up of breaker body and circuit breaker operation mechanism, and disconnecting switch is by disconnecting switch body and isolator operating mechanism
Composition, breaker body includes insulating polar pole, and in insulating polar pole, disconnecting switch body includes keeping apart vacuum interrupter sealing
Movable touch knife, static contact isolation switch and grounding contact are closed, the breaker body and disconnecting switch body or so arrangement are arranged on
In the casing of sealing, full of environmentally friendly gas in casing；Static contact isolation switch removes the contact part contacted with disconnecting switch movable touch knife
Point be located at insulating polar pole outside, other parts sealing in insulating polar pole, static contact isolation switch by it is conductive be flexible coupling with
The moving conductive rod connection of vacuum interrupter；Grounding contact is fixedly connected on isolator operation axle.
The environmentally friendly gas is the mixed gas of dry air, nitrogen or nitrogen and dry air.
Traditional breaker and disconnecting switch is two elements independently, is individually separated installing and occupies larger sky
Between, in switch cubicle, the three-phase of breaker and disconnecting switch is generally laterally arranged, i.e., A, B, C three-phase are the cloth of left, center, right
Mode is put, transverse width is larger, and disconnecting switch is typically located above or below breaker so that the height gauge of whole cupboard
It is very little larger.
Breaker and disconnecting switch are designed to an entirety by the utility model, reduce breaker and disconnecting switch takes
Space, greatly reduce the width and height dimension of whole switchgear, simultaneously as by static contact isolation switch design exist
On breaker insulating polar pole, disconnecting switch grounding contact is designed on isolator operation axle, is kept apart so as to greatly save
Close the space for taking so that structure is compacter, switch is more minimized.
Further, since what is be full of in casing is dry environmentally friendly gas, its pressure is pressure-fired (i.e. slightly larger than ambient atmosphere
Pressure), so alternate, relatively smaller than conventional air insulation with the clear distance of fracture, alternate and air clearance relatively
From >=100mm, from >=120mm, such distance is respectively less than conventional air insulated switch cabinet regulation to the air clearance of isolation fracture
It is alternate, relatively with the distance of isolation fracture, therefore the utility model both met switchgear to insulate requirement, subtract again
The space that small disconnecting switch takes.
In sum, the utility model there is environmental protection, compact conformation, using reliable.
Brief description of the drawings
Fig. 1 is stereogram of the present utility model.
Fig. 2 is front view of the present utility model.
Fig. 3 is right view of the present utility model.
Fig. 4 is the stereogram of breaker in the utility model.
Fig. 5 is the longitudinal section of breaker in the utility model.
Fig. 6 is the stereogram of disconnecting switch in the utility model.
Fig. 7 is the front view of disconnecting switch in the utility model.
Fig. 8 is structural representation of the utility model when breaker and disconnecting switch are in closing position.
Fig. 9 is structural representation of the utility model when breaker and disconnecting switch are in open position.
Figure 10 is that the utility model is in structural representation when open position, disconnecting switch are in earthing position in breaker
Figure.
Marked in figure：1-casing, 2-breaker body, 21-insulating polar pole, 22-vacuum interrupter 23-be flexible coupling
24-insulated tension pole, 25-pedestal, 26-breaker operator axle 27-input terminal, 3-circuit breaker operation mechanism, 4-channel-section steel
5-outlet casing tube, 6-branch bus, 7-disconnecting switch, 71-static contact isolation switch of body, 72-earth bus 73-ground connection
77-binding post of contact 74-disconnecting switch movable touch knife 75-isolator operation, 76-insulated tension pole of axle 78-insulation
Son 79-install channel-section steel 710-bolt, 711-spring, 712-bolt, 713-flange, 8-branch bus, 9-entrance bushing
10-flange, 11-earth lead, 12-isolator operating mechanism, 221-moving conductive rod
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model.
Specific embodiment
Embodiment
As shown in Fig. 1~Figure 10, the utility model includes casing 1, breaker body 2, circuit breaker operation mechanism 3, isolation
Switch main body 7 and isolator operating mechanism, casing 1 are welded with stainless steel plate, and the rear and front end of the bottom of casing 1 is welded respectively
Channel-section steel 4 is connected to, for installing disconnecting switch body 7.The breaker body 2 and disconnecting switch body 7 or so are arranged in parallel in
In casing 1, the structure of breaker body 2 as shown in Figure 4, Figure 5, including insulating polar pole 21, vacuum interrupter 22, insulated tension pole 24
With input terminal 27, the sealing of vacuum interrupter 22 in insulating polar pole 21, the lower end of input terminal 27 and static contact isolation switch
71 support section sealing insulation insulating polar pole 21 in, the static contact isolation switch 71 being in contact with disconnecting switch movable touch knife 74
Contact part be located at outside insulating polar pole 21, static contact isolation switch 71 is by conductive soft company 23 and vacuum interrupter 22
Moving conductive rod 221 is connected, and so the electric current from the outflow of moving conductive rod 221 can be through the 23 arrival static contact isolation switches that are flexible coupling
71.The three-phase of A, B, C of breaker using being longitudinally arranged, i.e., A, B, C three-phase be after, in, preceding arrangement, the insulation per phase
The lower end of pole 21 is bolted on pedestal 25, and pedestal 25 is welded on the bottom of casing 1.Positioned at the top of insulating polar pole 21
Input terminal 27 be connected with inlet wire conducting rod by branch bus 8, inlet wire conducting rod sealing is in carrying for being suppressed by insulating materials
In the entrance bushing 9 of taper.The upper end of insulated tension pole 24 is fixedly connected with the moving conductive rod 221 of vacuum interrupter 2, lower end with it is disconnected
Connecting lever in road device operating shaft 26 is hinged.Breaker operator axle 26 is installed in rotation on pedestal 25, and wherein case is stretched out in one end
Body 1 is connected with circuit breaker operation mechanism 3.
The disconnecting switch that the utility model is used for operation, isolation, ground connection three disconnecting switch of station, including every
From Switch main body 7 and isolator operating mechanism, the disconnecting switch body 7 includes static contact isolation switch 71, earth bus
72nd, grounding contact 73, disconnecting switch movable touch knife 74, isolator operation axle 75, insulated tension pole 76, binding post 77 and insulator
78, the sealing of static contact isolation switch 71 on breaker body 2, disconnecting switch movable touch knife 74, binding post 77 and insulator 78
It is fixed on installation channel-section steel 79 with bolt 710 after being tightened together with bolt successively, before and after the two ends of installation channel-section steel 79 are welded on
On channel-section steel 4.Earth bus 72 and grounding contact 73 are fixedly connected on isolator operation axle 75, the two ends point of insulated tension pole 76
Connecting lever not with disconnecting switch movable touch knife 74 and isolator operation axle 75 is hinged, and isolator operation axle 75 is rotatably mounted
On casing 1, wherein one end is stretched out casing 1 and is connected with isolator operating mechanism, and the other end is hinged on the flange of the inner side of casing 1
On 713.Earth bus 72 is connected by earth lead 11 with shell, so that switch wire outlet terminal reliable ground.Disconnecting switch is dynamic to be touched
The two ends of knife 74 are respectively arranged with spring 711, and rotating bolt 712 can adjust the pressure of spring 711, so that disconnecting switch movable touch knife 74
Can reliable contacts with static contact isolation switch 71 and grounding contact 73.Binding post 77 is connected by branch bus 6 with outlet conductive pole
Connect, outlet conductive pole sealing is in the tapered outlet casing tube 5 of the band suppressed by insulating materials.The three-phase of A, B, C of breaker
Be also adopted by being longitudinally arranged, i.e., A, B, C three-phase be after, in, preceding arrangement.When rotating counterclockwise isolator operation axle 75
When, disconnecting switch movable touch knife 74 is pushed to static contact isolation switch 71 of the sealing on breaker body 2, and two panels disconnecting switch is moved
Contact knife 74 clamps static contact isolation switch 71 turns on major loop, and when isolator operation axle 4 is rotated clockwise, keeps apart
Close movable touch knife 74 and be pulled to isolated location, further rotate isolator operation axle 75, disconnecting switch movable touch knife 74 is pulled to and connects
Position, two panels disconnecting switch movable touch knife 74 clamps grounding contact 73.
When the utility model is installed, casing 1 is first left into one or two side and is not welded, after the completion of debugging to be installed again
By unwelded side welded closure, the mixed gas of dry air, nitrogen or nitrogen and dry air are finally filled with casing
In.It is to ensure sealing effectiveness, the external part and outlet casing tube 5 of breaker operator axle 26 and isolator operation axle 75 and enters
Sealed using O-ring seal between thread casing 9 and casing 1.Wherein, the O-ring seal set of outlet casing tube 5 and entrance bushing 9
In the groove of insulating sleeve, and O-ring seal is pressed in play a part of sealing between insulating sleeve and casing with pressing plate,
Pressing plate is fixed by the stud on casing with the cooperation of nut.
Fig. 8, Fig. 9, Figure 10 are respectively breaker and disconnecting switch is in closing a floodgate, open position and breaker are in point
Gate position, disconnecting switch are in structural representation during earthing position.From figure 8, it is seen that when breaker and disconnecting switch are equal
During in closing position, whole major loop conducting, electric current enters casing 1 from entrance bushing 9, through branch bus 8, vacuum interrupter
22nd, it is flexible coupling after 23, static contact isolation switch 71, disconnecting switch movable touch knife 74, binding post 77, branch bus 6 from outlet casing tube 5
Outflow.When needing to disconnect, as shown in figure 9, first by breaker open operation, it is then that disconnecting switch movable touch knife 74 and disconnecting switch is quiet
Contact 71 is separated into isolated location, and now, the clear distance (H shown in Fig. 9) of isolation fracture is more than 120mm, forms a safety
Isolation fracture.When ground connection is needed, as shown in Figure 10, disconnecting switch movable touch knife 74 is operated into earthing position and grounding contact
73 close, and the shell of cabinet 1 is coupled together with the earth bus 72 of disconnecting switch by earth lead 11, so that under realizing switch
The reliable ground at end.
The above be only the utility model preferred embodiment, but protection domain of the present utility model is not limited to
This, any transformation carried out based on technical scheme provided by the utility model and utility model design and replacement should all be covered
In protection domain of the present utility model.
Claims (2)
1. a kind of to use environmentally friendly gas isolated isolation circuit breakers, including breaker and disconnecting switch, breaker is by breaker sheet
Body and circuit breaker operation mechanism are constituted, and disconnecting switch is made up of disconnecting switch body and isolator operating mechanism, breaker sheet
Body includes insulating polar pole, and in insulating polar pole, disconnecting switch body includes disconnecting switch movable touch knife, isolation to vacuum interrupter sealing
Switch static contact and grounding contact, it is characterised in that：
A. breaker body and disconnecting switch body or so arrangement are arranged in the casing of sealing, full of environmentally friendly gas in casing；
B. static contact isolation switch is in addition to the contact part contacted with disconnecting switch movable touch knife is located at insulating polar pole, and remainder is solid
Be enclosed in insulating polar pole, static contact isolation switch by it is conductive be flexible coupling be connected with the moving conductive rod of vacuum interrupter；
C. grounding contact is fixedly connected on isolator operation axle.
It is 2. according to claim 1 to use environmentally friendly gas isolated isolation circuit breakers, it is characterised in that：The environmentally friendly gas
It is dry air, nitrogen or nitrogen and the mixed gas of dry air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621314681.XU CN206195231U (en) | 2016-12-01 | 2016-12-01 | Adopt environmental protection gas -insulated's isolation breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621314681.XU CN206195231U (en) | 2016-12-01 | 2016-12-01 | Adopt environmental protection gas -insulated's isolation breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195231U true CN206195231U (en) | 2017-05-24 |
Family
ID=58723226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621314681.XU Expired - Fee Related CN206195231U (en) | 2016-12-01 | 2016-12-01 | Adopt environmental protection gas -insulated's isolation breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195231U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602452A (en) * | 2016-12-01 | 2017-04-26 | 张力 | Isolation circuit breaker insulated by adopting environmental gas |
| CN106952774A (en) * | 2017-05-09 | 2017-07-14 | 亚洲电力设备(深圳)股份有限公司 | A kind of environmentally friendly switchgear vacuum circuit breaker special pole |
| CN108281919A (en) * | 2018-03-26 | 2018-07-13 | 北京清畅电力技术股份有限公司 | Facilitate the solid insulation ring main unit insulation and sealing structure of handling |
| CN114243547A (en) * | 2021-11-10 | 2022-03-25 | 泰豪科技(深圳)电力技术有限公司 | Solid insulation switch cabinet |
-
2016
- 2016-12-01 CN CN201621314681.XU patent/CN206195231U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602452A (en) * | 2016-12-01 | 2017-04-26 | 张力 | Isolation circuit breaker insulated by adopting environmental gas |
| CN106952774A (en) * | 2017-05-09 | 2017-07-14 | 亚洲电力设备(深圳)股份有限公司 | A kind of environmentally friendly switchgear vacuum circuit breaker special pole |
| CN108281919A (en) * | 2018-03-26 | 2018-07-13 | 北京清畅电力技术股份有限公司 | Facilitate the solid insulation ring main unit insulation and sealing structure of handling |
| CN108281919B (en) * | 2018-03-26 | 2023-09-26 | 北京清畅新企电力设备有限公司 | Insulating sealing structure for solid insulating ring main unit convenient to assemble and disassemble |
| CN114243547A (en) * | 2021-11-10 | 2022-03-25 | 泰豪科技(深圳)电力技术有限公司 | Solid insulation switch cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206195231U (en) | Adopt environmental protection gas -insulated's isolation breaker | |
| US3857006A (en) | Gas insulated switching apparatus | |
| US8847095B2 (en) | High-voltage switching device | |
| KR20130105350A (en) | Switch gear | |
| CN106602452A (en) | Isolation circuit breaker insulated by adopting environmental gas | |
| CN106848909A (en) | One kind is without isolated switchgear under bin static contact non-SF 6 gas insulative | |
| CN101145677B (en) | Special gas insulation combined appliance for electric railroad | |
| CN201134639Y (en) | 72.5KV gas insulated metal sealing switchgear | |
| CN202206029U (en) | Miniaturized integrated switch used for high voltage switch cabinet | |
| CN202042412U (en) | Touchable high-voltage circuit breaker | |
| CN218732744U (en) | Environment-friendly gas-insulated vacuum-opening-closing power distribution switch cabinet | |
| CN204102790U (en) | Vacuum circuit breaker on outdoor lamppost | |
| CN207339064U (en) | A kind of environment-friendly type air insulation AC metal enclosed ring network switch cabinet | |
| CN104143464B (en) | Earthed switch assembly unit and high-speed grounding switch thereof | |
| CN201584681U (en) | Looped network switch cabinet | |
| CN212113556U (en) | Vacuum switch device | |
| CN209748042U (en) | Gas-insulated metal-enclosed switchgear with upper and lower gas box structures | |
| CN106848908A (en) | One kind is without bin static contact non-SF 6 gas insulative switchgear | |
| CN204927168U (en) | Optional switching device who operates mutually | |
| CN209748045U (en) | Gas-insulated metal-enclosed switchgear | |
| CN202797734U (en) | Combination switch cabinet of solid insulation fuse | |
| CN103117189A (en) | Solid encapsulated pole and solid insulated ring network cabinet | |
| CN202120805U (en) | Cubicle gas insulated switchgear | |
| CN207021580U (en) | One kind is without bin static contact non-SF 6 gas insulative switchgear | |
| CN102957098A (en) | Small integrated switch for high-voltage switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20181201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |