CN204834471U - Three -position disconnecting switch - Google Patents
Three -position disconnecting switch Download PDFInfo
- Publication number
- CN204834471U CN204834471U CN201520443923.4U CN201520443923U CN204834471U CN 204834471 U CN204834471 U CN 204834471U CN 201520443923 U CN201520443923 U CN 201520443923U CN 204834471 U CN204834471 U CN 204834471U
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- CN
- China
- Prior art keywords
- contact
- station
- bus duct
- bus
- insulated case
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- Withdrawn - After Issue
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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a three -position disconnecting switch, include insulating case, three station adjustment mechanism and three station operating device, in three station adjustment mechanism set up this insulating case, three station adjustment mechanism can be switched over between the position of closing a floodgate, isolation position and ground connection position by the control of three station operating device, and this insulating case's top is equipped with the generating line fixed structure that is used for fixing the generating line, and this generating line fixed structure includes open bus duct in both ends and insulating lid, and the setting of this bus duct is in insulating case's top, this insulating lid setting is in the top of bus duct and be used for sealed this bus duct, be equipped with between this bus duct and the insulating lid generating line and with this generating line with three station adjustment mechanism connect. The utility model discloses well three -position disconnecting switch and generating line link together and with the generating line setting between bus duct and insulating lid, the generating line need not expose outside like this, can realize the requirement of all insulation, also can use in multiple occasion, takes place the production safety accident in preventing the operation, guarantees operation safety.
Description
Technical field
The utility model relates to the technical field of isolating switch, particularly relates to a kind of tri-station isolating switch.
Background technology
Isolating switch, namely when dividing position, having the insulation distance of the requirement that conforms with the regulations and significantly disconnecting mark between contact; When co-bit is put, the switchgear of electric current under normal loop condition and the electric current at the appointed time under exceptional condition (such as short circuit) can be carried.
Three-station, English is called for short 3PS, i.e. 3positionswitchgear.Three-station is usually used in fully closed combined electric unit (GIS) or compound electric apparatus (PASS), is not an independent product.Be usually used in XGN ring main unit.So-called three stations refer to three service positions: 1 is the closing position that isolated switch main fracture is connected, and 2 is isolated locations that main fracture separates, and 3 is earthing positions of ground side.Three-station is exactly the function incorporating isolating switch and earthed switch in fact, and come by a cutter, so just mechanical latching can be realized, prevent major loop charged conjunction ground cutter, because one a position, and can only not resemble traditional isolating switch cutter, operator is operator, ground cutter is ground cutter, just may go out misoperation between two cuttves.And tri-station isolating switch is a cutter, one is at a time unique the service position of cutter, and not being at main switch closing position, is exactly at isolated location or earthing position.In traditional GIS, isolating switch and earthed switch are two functional units, and use electrical interlock to control, present recent design uses tri-station isolating switch exactly, avoids the possibility of misoperation.
In order to reach better security performance, the tri-station isolating switch structure all relative complex on market, volume is comparatively large, and troublesome poeration cannot meet miniaturized requirement, and the poor accuracy of switch motion, poor reliability.
Tri-station isolating switch is connected with bus usually, and current bus is all outside exposed substantially, can not meet the requirement of all insulation, there is larger potential safety hazard, more can not meet multiple occasion and use.
In the plug-in type combined electrical apparatus used in current electrical network, tri-station isolating switch is mainly assembled by imported equipments and parts, its complex structure, and cost is high, the poor accuracy of switch motion, poor reliability.
Utility model content
For solving the problems of the technologies described above, the utility model provides following technical scheme:
Tri-station isolating switch, comprise insulated case, three station governor motions and three station operating mechanisms, three station governor motions arrange in this insulated case, three station governor motions are controlled by three station operating mechanisms and can in closing positions, switch between isolated bit and ground connection position, the top of this insulated case is provided with the bus fixed structure for fixing bus, this bus fixed structure comprises the bus duct and insulating lid that open wide at both ends, this bus duct is arranged on the top of described insulated case, this insulating lid be arranged on bus duct top and for sealing this bus duct, be provided with bus between this bus duct and insulating lid and this bus is connected with described three station governor motions.
Further, described insulated case comprises insulated case and lower insulated case, and upper insulated case is vertically connected by flange seal with lower insulated case, and on this, the box house of insulated case and lower insulated case forms the working space of described three station governor motions.
Further, described three station governor motions comprise isolation power transmission shaft, connecting rod, closing position contact, ground connection position contact, connect contact and isolation knife;
This isolation power transmission shaft is arranged on the side in insulated case through described insulated case and by isolation power transmission shaft, isolation power transmission shaft is controlled by described three station operating mechanisms and is connected with connecting rod to drive this link rotatable;
Described closing position contact and ground connection position contact arrange the both sides up and down of isolation power transmission shaft respectively, and this closing position contact is connected with described bus through described bus duct;
Described connection contact is arranged on the opposite side away from described isolation power transmission shaft in this insulated case, and described isolation knife is connected contact top with this is rotatably connected and can carries out stretching motion simultaneously;
Described connecting rod and described isolation knife pivot joint also can drive this isolation knife to turn to, and closing position is connected contact, ground connection position connects contact and horizontal isolated bit place.
Further, described closing position contact is upward through described bus duct and is arranged in bus duct by the top of closing position contact, and described bus is fixed by screws in the top of described closing position contact.
Further, the top of described connection contact is provided with conductive turning block, this turning block is provided with through hole, and the circle wall of this through hole is provided with the fingertip spring contacted with described isolation knife, and this isolation knife and described through hole coordinate and can carry out stretching motion by this through hole relative.
Further, the top of described connection contact is provided with two upper static contacts, described turning block to arrange between two upper static contacts and with this on static contact be rotationally connected.
Further, described isolation knife is copper contact tube, and this isolation knife and the pivot end of described connecting rod are provided with the moving contact be communicated with described closing position contact, ground connection position contact.
Further, described insulating lid is screwed on described bus duct, forms the cylindrical hole placing described bus between this insulating lid and bus duct, and the both ends of this bus duct and insulating lid are provided with closes cover.
In the utility model, tri-station isolating switch and bus link together and are arranged between bus duct and insulating lid by bus, such bus need not be outside exposed, the requirement of all insulation can be realized, also can use in multiple occasion, prevent production development security incident in operation, ensure job safety.
Accompanying drawing explanation
Fig. 1 is the cutaway view that tri-station isolating switch is in ground connection position;
Fig. 2 is the structural representation of tri-station isolating switch;
Fig. 3 is the structural representation that tri-station isolating switch is in isolated bit;
Fig. 4 is the structure chart of turning block;
Fig. 5 is the cutaway view that tri-station isolating switch is in closing position.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment:
Tri-station isolating switch, Fig. 1 is the cutaway view that tri-station isolating switch is in ground connection position, as shown in Figure 1, comprise insulated case 101, three station governor motion 102 and three station operating mechanism (not shown)s, three station governor motions 102 arrange in this insulated case 101, three station governor motions 102 are controlled by three station operating mechanisms and can in closing positions, switch between isolated bit and ground connection position, Fig. 2 is the structural representation of tri-station isolating switch, as shown in Figure 2, the top of this insulated case 101 is provided with the bus fixed structure for fixing bus, described bus fixed structure comprises the bus duct 104 and insulating lid 105 that open wide at both ends, this bus duct 104 is arranged on the top of described insulated case 101, this insulating lid 105 be arranged on bus duct 104 top and for sealing this bus duct 104, be provided with bus 107 between this bus duct 104 and insulating lid 105 and this bus 107 is connected with three station governor motions 102 described in Fig. 2.
In the utility model, tri-station isolating switch and bus link together and are arranged between bus duct and insulating lid by bus, such bus need not be outside exposed, the requirement of all insulation can be realized, also can use in multiple occasion, prevent production development security incident in operation, ensure job safety.
On the basis of above-described embodiment, preferably, as shown in Figure 2, described insulated case 101 comprises insulated case 1011 and lower insulated case 1012, upper insulated case 1011 is vertically connected by flange seal with lower insulated case 1012, and on this, the box house of insulated case 1011 and lower insulated case 1012 forms the working space of three station governor motions 102 described in Fig. 1.
On the basis of above-described embodiment, preferably, as shown in Figure 1, described three station governor motions 102 comprise isolation power transmission shaft 108, connecting rod 109, closing position contact 110, ground connection position contact 111, connect contact 112 and isolation knife 113;
As shown in Figure 1, this isolation power transmission shaft 108 is arranged on the side in insulated case 101 through described insulated case 101 and by isolation power transmission shaft 108, isolation power transmission shaft 108 is controlled by described three station operating mechanisms and is connected with connecting rod 109 to drive this connecting rod 109 to rotate;
As shown in Figure 1, described closing position contact 110 and ground connection position contact 111 are separately positioned on the both sides up and down of isolation power transmission shaft 108, preferably, described closing position contact 110 and ground connection position contact 111 are symmetricly set on the both sides up and down of isolation power transmission shaft 108, and this closing position contact 110 is connected with described bus 107 through described bus duct 104;
As shown in Figure 1, described connection contact 112 is arranged on the opposite side away from described isolation power transmission shaft 108 in this insulated case 101, described isolation knife 113 is connected contact 112 top with this is rotatably connected and can carries out stretching motion simultaneously, preferably, the rotary centerline of this isolation knife 113 and the rotary centerline of described isolation power transmission shaft 108 are in same level;
As shown in Figure 1, described connecting rod 109 and the pivot joint of described isolation knife 113 and this isolation knife 113 can be driven to turn to closing position is connected contact 110, ground connection position connects contact 111 and horizontal isolated bit place.
Three station governor motions of the present embodiment tri-station isolating switch are relatively simple, small volume, and easy and simple to handle, can realize miniaturized requirement, and cost is low, the accuracy of switch motion is high, reliability is high.
On the basis of above-described embodiment, preferably, as shown in Figure 1, described closing position contact 110 is upward through described bus duct 104 and is arranged in bus duct 104 by the top of closing position contact 110, and described bus 107 is fixed by screws in the top of described closing position contact 110.
On the basis of above-described embodiment, preferably, Fig. 3 is the structural representation that tri-station isolating switch is in isolated bit, as shown in Figure 3, the top connecting contact 112 described in Fig. 1 is provided with conductive turning block 118, Fig. 4 is the structure chart of turning block, as shown in Figure 4, this turning block 118 is provided with through hole 114, in the fingertip spring 115, Fig. 3 that circle wall is provided with isolation knife 113 described in Fig. 3 contacts of this through hole 118, this isolation knife 113 and described through hole 114 coordinate and can carry out stretching motion by this through hole 114 relative.
The present embodiment, by being provided with fingertip spring in the circle wall of through hole, can promote electric conductivity, further lifting switch accuracy of action, reliability.
On the basis of above-described embodiment, preferably, as shown in Figure 3, the top connecting contact 112 described in Fig. 1 is provided with two upper static contacts 116, described turning block 118 to arrange between two upper static contacts 116 and with this on static contact 116 be rotationally connected.
On the basis of above-described embodiment, preferably, Fig. 5 is the cutaway view that tri-station isolating switch is in closing position, as shown in Figure 5, described isolation knife 113 is copper contact tube, and this isolation knife 113 and the pivot end of described connecting rod 109 are provided with the moving contact 117 be communicated with described closing position contact 110, ground connection position contact 111.
On the basis of above-described embodiment, preferably, as shown in Figure 2, described insulating lid 105 is screwed on described bus duct 104, form the cylindrical hole placing described bus 107 between this insulating lid 105 and bus duct 104, the both ends of this bus duct 104 and insulating lid 105 are provided with closed cover 106.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (8)
1. tri-station isolating switch, it is characterized in that, comprise insulated case, three station governor motions and three station operating mechanisms, three station governor motions arrange in this insulated case, three station governor motions are controlled by three station operating mechanisms and can in closing positions, switch between isolated bit and ground connection position, the top of this insulated case is provided with the bus fixed structure for fixing bus, this bus fixed structure comprises the bus duct and insulating lid that open wide at both ends, this bus duct is arranged on the top of described insulated case, this insulating lid be arranged on bus duct top and for sealing this bus duct, be provided with bus between this bus duct and insulating lid and this bus is connected with described three station governor motions.
2. tri-station isolating switch according to claim 1, it is characterized in that, described insulated case comprises insulated case and lower insulated case, upper insulated case is vertically connected by flange seal with lower insulated case, and on this, the box house of insulated case and lower insulated case forms the working space of described three station governor motions.
3. tri-station isolating switch according to claim 1, is characterized in that, described three station governor motions comprise isolation power transmission shaft, connecting rod, closing position contact, ground connection position contact, connect contact and isolation knife;
This isolation power transmission shaft is arranged on the side in insulated case through described insulated case and by isolation power transmission shaft, isolation power transmission shaft is controlled by described three station operating mechanisms and is connected with connecting rod to drive this link rotatable;
Described closing position contact and ground connection position contact arrange the both sides up and down of isolation power transmission shaft respectively, and this closing position contact is connected with described bus through described bus duct;
Described connection contact is arranged on the opposite side away from described isolation power transmission shaft in this insulated case, and described isolation knife is connected contact top with this is rotatably connected and can carries out stretching motion simultaneously;
Described connecting rod and described isolation knife pivot joint also can drive this isolation knife to turn to, and closing position is connected contact, ground connection position connects contact and horizontal isolated bit place.
4. tri-station isolating switch according to claim 3, is characterized in that, described closing position contact is upward through described bus duct and is arranged in bus duct by the top of closing position contact, and described bus is fixed by screws in the top of described closing position contact.
5. tri-station isolating switch according to claim 3, it is characterized in that, the top of described connection contact is provided with conductive turning block, this turning block is provided with through hole, the circle wall of this through hole is provided with the fingertip spring contacted with described isolation knife, and this isolation knife and described through hole coordinate and can carry out stretching motion by this through hole relative.
6. tri-station isolating switch according to claim 5, is characterized in that, the top of described connection contact is provided with two upper static contacts, described turning block to arrange between two upper static contacts and with this on static contact be rotationally connected.
7. the tri-station isolating switch according to the arbitrary claim of claim 3 ~ 6, is characterized in that, described isolation knife is copper contact tube, and this isolation knife and the pivot end of described connecting rod are provided with the moving contact be communicated with described closing position contact, ground connection position contact.
8. the tri-station isolating switch according to the arbitrary claim of claim 1 ~ 6, it is characterized in that, described insulating lid is screwed on described bus duct, form the cylindrical hole placing described bus between this insulating lid and bus duct, the both ends of this bus duct and insulating lid are provided with closes cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443923.4U CN204834471U (en) | 2015-06-26 | 2015-06-26 | Three -position disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520443923.4U CN204834471U (en) | 2015-06-26 | 2015-06-26 | Three -position disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204834471U true CN204834471U (en) | 2015-12-02 |
Family
ID=54692042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520443923.4U Withdrawn - After Issue CN204834471U (en) | 2015-06-26 | 2015-06-26 | Three -position disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204834471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934256A (en) * | 2015-06-26 | 2015-09-23 | 厦门协成实业有限公司 | Three-position swtich |
| CN112435876A (en) * | 2020-11-26 | 2021-03-02 | 海南电网有限责任公司三亚供电局 | Three-position switch structure for comprehensive cabinet |
-
2015
- 2015-06-26 CN CN201520443923.4U patent/CN204834471U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934256A (en) * | 2015-06-26 | 2015-09-23 | 厦门协成实业有限公司 | Three-position swtich |
| CN104934256B (en) * | 2015-06-26 | 2017-03-08 | 协成科技股份有限公司 | Tri-station isolating switch |
| CN112435876A (en) * | 2020-11-26 | 2021-03-02 | 海南电网有限责任公司三亚供电局 | Three-position switch structure for comprehensive cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20171114 |