CN201576606U - Rotary isolation/ground switch - Google Patents
Rotary isolation/ground switch Download PDFInfo
- Publication number
- CN201576606U CN201576606U CN2009203506503U CN200920350650U CN201576606U CN 201576606 U CN201576606 U CN 201576606U CN 2009203506503 U CN2009203506503 U CN 2009203506503U CN 200920350650 U CN200920350650 U CN 200920350650U CN 201576606 U CN201576606 U CN 201576606U
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- CN
- China
- Prior art keywords
- contact
- moving contact
- grounding switch
- tank body
- isolating
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- 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
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Abstract
The utility model discloses a rotary isolation/ground switch comprising a sealed tank body, a grounding fixed contact, a first isolation fixed contact, a second isolation fixed contact and a rotatable current-conducting rod, wherein, a grounding moving contact, a first isolation moving contact, a second isolation moving contact, a shielding case, an insulating tension pole and a main operating shaft are fixed at intervals on the current-conducting rod. Besides having the advantages of a single-bus type combined isolation/ground switch, the rotary isolation/ground switch can realize four different working conditions, which can meet the application requirements of more sophisticated power transmission and distribution equipment.
Description
Technical field
The utility model relates to a kind of high pressure unit switch equipment, particularly relates to a kind of double-bus type rotary type multi-station isolating/grounding switch.
Background technology
High voltage isolator and high voltage ground switch are common electrical elements in the high pressure electrical power trans mission/distribution system.High voltage isolator is mainly used in the circuit that disconnects zero load electric current when separating brake, and passes through electric current reliably when closing a floodgate.High voltage ground switch then is used for loop ground connection, the safety when guaranteeing to overhaul.
At present normal high voltage isolator that uses and high voltage ground switch are element independently separately, make bulky, the complex structure of equipment for power transmission and distribution, and are easy to take place misoperation.In addition, being exposed to outdoor independent switch also can be oxidized, and its conductivity is reduced.
Chinese patent ZL 200620023066.3 has proposed a kind of combined high-voltage isolating/grounding switch of single busbar connection type.High voltage isolator and high voltage ground switch are incorporated in the middle of the tank body,, can realize isolating switch combined floodgate, the equal separating brake of isolating/grounding switch, the earthed switch three kinds of operating states (three stations) of closing a floodgate by the rotation of operation axis.This system configuration is simple, compact, has simultaneously to operate advantages such as reliable, non-maintaining.
But, in this single busbar connection type combined high-voltage isolating/grounding switch, only have two terminals.And for more complicated equipment for power transmission and distribution, need the more various combined high-voltage isolating/grounding switch of a kind of function.
The utility model content
The purpose of this utility model is to provide a kind of rotary isolating/grounding switch, three terminals can be provided, except advantage with single busbar connection type composite type isolating/grounding switch, can realize four kinds of different operating modes, can satisfy the application demand of more complicated equipment for power transmission and distribution.
Rotary isolating/grounding switch of the present utility model comprises:
The tank body of sealing;
The ground connection fixed contact, described ground connection fixed contact is positioned at inner tank wall, and is connected with the tank body equipotential;
First, second isolates fixed contact, and described first, second isolated fixed contact and be positioned at inner tank wall, and insulate between the tank body, and connects first, second terminals respectively;
Rotatable contact rod, described contact rod is arranged on the inside of tank body, and the one end connects insulated tension pole, is used to connect the drive unit that drives the contact rod rotation, and the other end connects the 3rd terminals;
The fixing ground connection moving contact, first and second in compartment of terrain is isolated moving contact on contact rod, and each moving contact is angle to be arranged, and the rotation of contact rod can make each moving contact contact with corresponding fixed contact.
Preferred as technique scheme, rotary isolating/grounding switch of the present utility model also comprises: the radome that is provided with between insulated tension pole and contact rod.
Preferred as technique scheme, rotary isolating/grounding switch of the present utility model also comprises: be connected the operation axis in the insulated tension pole outside, be used to rotate contact rod.
Preferred as technique scheme, rotary isolating/grounding switch of the present utility model also comprises: the paired observation window that is provided with respectively at first, second terminals.
Preferred as technique scheme, rotary isolating/grounding switch of the present utility model also comprises: the circuit breaker that connects at the 3rd terminals.
Preferred as technique scheme also posted silver-colored fingertip sheet on described moving contact and fixed contact one or more.
Preferred as technique scheme, rotary isolating/grounding switch of the present utility model is filled with SF6 gas in described tank body.
Preferred as technique scheme is arranged on first, second at the ground connection moving contact on the contact rod and isolates between moving contact.
It is adjacent that preferred as technique scheme, first, second on contact rod isolate moving contact.
Preferred as technique scheme is characterized in that it is T type structure that described first, second isolated moving contact.
Rotary isolating/grounding switch of the present utility model, by rotation contact rod is positioned at different angles, can be grounded switch closes a floodgate, first isolating switch closes a floodgate, first, second isolates all combined floodgates, second isolating switch, the four kinds of operating modes of closing a floodgate can satisfy the application demand of more complicated equipment for power transmission and distribution.
Description of drawings
Fig. 1 is the structure chart of rotary isolating/grounding switch one embodiment of the utility model;
Fig. 2 A-2D is the rotation working condition chart of the rotary isolating/grounding switch of the utility model.
1: tank body; 2A: ground connection fixed contact; 2B: ground connection moving contact; 10A: first isolates fixed contact; 10B: first isolates moving contact; 20A: second isolates fixed contact; 20B: second isolates moving contact; L1: first terminals; L2: second terminals; L3: the 3rd terminals; 3,4: observation window; 5: ring flange; 6: contact rod; 7: insulated tension pole; 8: radome; 9: operation axis; 10: circuit breaker.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.For the person of ordinary skill in the field, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
The structure chart of the rotary isolating/grounding switch preferred embodiment of the utility model as shown in Figure 1, it includes the tank body 1 that constitutes the switch main body structure, this tank body 1 has enclosed construction.As preferably, in tank body, be filled with SF
6Gas, oxidized with each parts that prevents tank interior.
Be provided with ground connection fixed contact 2A at this tank body 1 inwall, equipotential is connected between ground connection fixed contact 2A and the tank body 1, promptly by tank body 1 ground connection.As preferably, ground connection fixed contact 2A is arranged on the below of tank body 1 inwall, and those skilled in the art also can be arranged on other position with ground connection fixed contact 2A.
Be provided with two and isolate fixed contact above this tank body 1 inwall, promptly first isolates the fixed contact 10A and the second isolation fixed contact 20A.First isolates fixed contact 10A, second isolates insulation between fixed contact 20A and the tank body 1, and connects the first terminals L1 and the second terminals L2 respectively.Each terminals is used to connect outer lead and sleeve pipe, thereby realizes the conducting of electric current.
As preferably, also be respectively arranged with paired observation window 3,4 at the first terminals L1 and the second terminals L2.As shown in Figure 1, observation window 3,4 bolts by ring flange are connected to form, and the observation window on each terminals is arranged in pairs, is used for entering of light, with the convenient combined floodgate of observing each fixed contact/open a sluice gate state.Those skilled in the art also can adopt other mode to form observation window, and the utility model is not limited to this.
Independent moulding between the first terminals L1 of the present utility model and the second terminals L2, and being threaded between the ring flange 5 that mates mutually by the centre realized the sealing of tank body.Those skilled in the art also can adopt other sealing means to form the first terminals L1 and the second terminals L2, and as one-body molded, the utility model is not limited to this.
Be provided with a contact rod 6 in the inside of tank body, by the support to contact rod 6 two ends, contact rod can be in the rotation of the inside of tank body 1.
Be fixed with ground connection moving contact 2B, first and isolate moving contact 10B and second and isolate moving contact 20B on contact rod 6, each moving contact is angle on contact rod arranges, and each moving contact that direction is set is vertical with the axle center of contact rod 6.As preferably, the ground connection moving contact 2B on the contact rod 6 is arranged on first to be isolated moving contact 10B and second and isolates between the moving contact 20B.It will be appreciated by those skilled in the art that ground connection moving contact 2B of the present utility model also can adopt other set-up mode, as being arranged on both sides, first, second isolation moving contact on the contact rod 6 is adjacent at this moment, and the utility model is not limited to this.Each moving contact can adopt identical structure, also can adopt different structures.As preferably, it is T type structure that described first, second isolated moving contact, to improve the contact area between moving contact and the fixed contact.
Simultaneously, on above-mentioned moving contact and fixed contact one or more, can also post silver-colored fingertip sheet,, reduce loop resistance to increase the conductivity of contact.
Side at contact rod 6 is provided with insulated tension pole 7, is fastenedly connected between insulated tension pole 7 and the contact rod 6, as the connected mode that preferably can adopt crimping.Insulated tension pole 7 is done identical rotatablely moving together with contact rod 6, and makes mutually insulated between contact rod 6 and the tank body 1.
In order to prevent that the non-uniform electric field that is positioned at the insulated tension pole zone from producing the destruction of partial discharge to tank body 1 each parts, the utility model preferred embodiment also is provided with a radome 8 between insulated tension pole 7 and contact rod 6, this radome 8 is round shape, preferably adopts metal materials such as Al material to be made.This radome 8 can so that when high pressure in the tank body 1 along disc discharge, thereby play uniform electric field, reduce the effect that parts are destroyed.
The other end of contact rod 6 connects the 3rd terminals L3, is used to connect outer lead and sleeve pipe, thereby realizes the conducting of electric current.As preferably, the 3rd terminals L3 of the utility model embodiment directly is connected with circuit breaker 10, and circuit breaker 10 also adopts built-in structure, is positioned at the inside of tank body 1.Circuit breaker 10 is used to realize opening a sluice gate and barrier gate of equipment for power transmission and distribution integrated circuit electric current.
The driving of the utility model by external force (as the driving of motor or manually) makes the operation axis rotation, and drives insulated tension pole and contact rod rotates together.When contact rod is positioned at different angles, can realize following four kinds of different operating modes:
A1: in the time of 0 °, shown in Fig. 2 A, the ground connection moving contact contacts with the ground connection fixed contact, and this moment, earthed switch closed a floodgate;
A2: in the time of 135 °, shown in Fig. 2 B, the first ground connection moving contact contacts with the first ground connection fixed contact, and this moment, first earthed switch closed a floodgate;
A3: in the time of 180 °, shown in Fig. 2 C, the first ground connection moving contact contacts with the first ground connection fixed contact, and the second ground connection moving contact contacts with the second ground connection fixed contact, and this moment, first, second earthed switch all closed a floodgate;
A4: in the time of 225 °, shown in Fig. 2 D, the second ground connection moving contact contacts with the second ground connection fixed contact, and this moment, second earthed switch closed a floodgate.
In Fig. 2 A-2D, the ground connection moving contact on the contact rod is arranged on first isolates between the moving contact and the second isolation moving contact.Those skilled in the art are to be understood that, as long as rotary isolating/grounding switch of the present utility model can be realized the purpose of above-mentioned four kinds of operating modes, the ground connection moving contact also can adopt other set-up mode, as being arranged on both sides, first, second isolation moving contact on the contact rod is adjacent at this moment, and the utility model is not limited to this.
The utility model can provide three terminals, and promptly the structure of double-bus type can realize four kinds of different operating modes, thereby can satisfy the application demand of more complicated equipment for power transmission and distribution.
In addition, with respect to existing free-standing switch, the utility model also has the following advantages:
1, simple in structure.The utility model is incorporated into two isolating switches and an earthed switch in the tank body dexterously, makes the simple in structure, compact of switch, and switch volume on the whole is little, has reduced the occupation of land space of switch.
2, operation is reliable.Combined floodgate/the separating brake of each switch of the utility model determined by the different anglecs of rotation, thereby can prevent the misoperation that causes because of the independent combined floodgate/separating brake of free-standing switch.
3, non-maintaining.Switch of the present utility model is installed in the tank interior that is isolated from the outside, the phenomenon that the conductivity of having avoided independent switch to produce because of the oxidation of outdoor switch reduces.
Therefore, the beneficial effects of the utility model are conspicuous.Though; the utility model is clearly demonstrated by above embodiment and accompanying drawing thereof; yet under the situation that does not deviate from the utility model spirit and essence thereof; the person of ordinary skill in the field should make various corresponding changes according to the utility model, but these corresponding changes all should belong to protection range of the present utility model.
Claims (10)
1. a rotary isolating/grounding switch is characterized in that, comprising:
The tank body of sealing;
The ground connection fixed contact, described ground connection fixed contact is positioned at inner tank wall, and is connected with the tank body equipotential;
First, second isolates fixed contact, and described first, second isolated fixed contact and be positioned at inner tank wall, and insulate between the tank body, and connects first, second terminals respectively;
Rotatable contact rod, described contact rod is arranged on the inside of tank body, and the one end connects insulated tension pole, is used to connect the drive unit that drives the contact rod rotation, and the other end connects the 3rd terminals;
The fixing ground connection moving contact, first and second in compartment of terrain is isolated moving contact on contact rod, and each moving contact is angle to be arranged, and the rotation of contact rod can make each moving contact contact with corresponding fixed contact.
2. rotary isolating/grounding switch as claimed in claim 1 is characterized in that, also comprises: the radome that is provided with between insulated tension pole and contact rod.
3. rotary isolating/grounding switch as claimed in claim 1 is characterized in that, also comprises: be connected the operation axis in the insulated tension pole outside, be used to rotate contact rod.
4. rotary isolating/grounding switch as claimed in claim 1 is characterized in that, also comprises: the paired observation window that is provided with respectively at first, second terminals.
5. rotary isolating/grounding switch as claimed in claim 1 is characterized in that, also comprises: at the circuit breaker of the 3rd terminals connection.
6. as each described rotary isolating/grounding switch of claim 1 to 5, it is characterized in that, on described moving contact and fixed contact one or more, also post silver-colored fingertip sheet.
7. as each described rotary isolating/grounding switch of claim 1 to 5, it is characterized in that, in described tank body, be filled with SF6 gas.
8. rotary isolating/grounding switch as claimed in claim 1 is characterized in that, is arranged on first, second at the ground connection moving contact on the contact rod and isolates between the moving contact.
9. rotary isolating/grounding switch as claimed in claim 1 is characterized in that, first, second isolation moving contact on contact rod is adjacent.
10. rotary as claimed in claim 8 or 9 isolating/grounding switch is characterized in that, it is T type structure that described first, second isolated moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203506503U CN201576606U (en) | 2009-12-28 | 2009-12-28 | Rotary isolation/ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203506503U CN201576606U (en) | 2009-12-28 | 2009-12-28 | Rotary isolation/ground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576606U true CN201576606U (en) | 2010-09-08 |
Family
ID=42696481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203506503U Expired - Fee Related CN201576606U (en) | 2009-12-28 | 2009-12-28 | Rotary isolation/ground switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236369A (en) * | 2013-03-27 | 2013-08-07 | 北京电研华源电力技术有限公司 | Solid insulation disconnecting switch |
| CN106785943A (en) * | 2016-11-29 | 2017-05-31 | 河南平芝高压开关有限公司 | A kind of experiment of high-voltage switch gear is connected bus device with three |
-
2009
- 2009-12-28 CN CN2009203506503U patent/CN201576606U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236369A (en) * | 2013-03-27 | 2013-08-07 | 北京电研华源电力技术有限公司 | Solid insulation disconnecting switch |
| CN106785943A (en) * | 2016-11-29 | 2017-05-31 | 河南平芝高压开关有限公司 | A kind of experiment of high-voltage switch gear is connected bus device with three |
| CN106785943B (en) * | 2016-11-29 | 2019-07-30 | 河南平芝高压开关有限公司 | A kind of test of high-voltage switch gear is connected bus device with three |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA POWER NEW ENERGY SMART GRID TECHNOLOGY CO., Free format text: FORMER OWNER: BAO HONGQI Effective date: 20120224 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100186 DAXING, BEIJING TO: 211113 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120224 Address after: 211113 No. 40, Chinese business road, Airport Industrial Park, Jiangning economic and Technological Development Zone, Jiangsu, Nanjing Patentee after: China Power New Energy Smart Grid Technology Co., Ltd. Address before: 100186 Beijing City, Daxing District Yizhuang Tianhua Road Park two Tianhua District No. 7 Building 3 unit 602 Patentee before: Bao Hongqi |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20181228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |