CN104934256B - Tri-station isolating switch - Google Patents
Tri-station isolating switch Download PDFInfo
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- CN104934256B CN104934256B CN201510360325.5A CN201510360325A CN104934256B CN 104934256 B CN104934256 B CN 104934256B CN 201510360325 A CN201510360325 A CN 201510360325A CN 104934256 B CN104934256 B CN 104934256B
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- bus
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- insulated case
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The present invention discloses a kind of tri-station isolating switch, including insulated case, three station governor motions and three station operating mechanisms, three station governor motions are arranged in the insulated case, three station governor motions are controlled by three station operating mechanisms and can be in closing positions, switch between isolated bit and ground connection position, the top of the insulated case is provided with the bus fixed structure for fixing bus, the bus fixed structure includes bus duct and the insulating lid for opening wide at both ends, the bus duct is arranged on the top of the insulated case, the insulating lid is arranged on the top of bus duct and for sealing the bus duct, bus is provided between bus duct and the insulating lid and the bus is connected with the three stations governor motion.In the present invention, tri-station isolating switch and bus link together and bus are arranged between bus duct and insulating lid, so bus without exposed outside, it is possible to achieve the requirement of all insulation, it is also possible to used in multiple occasions, prevent production development security incident in operation, it is ensured that job safety.
Description
Technical field
The present invention relates to the technical field of disconnecting switch, more particularly to a kind of tri-station isolating switch.
Background technology
Disconnecting switch, i.e., when position is divided, have the insulation distance for meeting regulation requirement and significantly disconnection to indicate between contact；
When position is closed, electric current under normal loop condition can be carried and the electric current under exceptional condition (for example short-circuit) at the appointed time
Switchgear.
Three-station, English abbreviation 3PS, i.e. 3position switchgear.Three-station is usually used in totally-enclosed
In combined electrical apparatus (GIS) or compound electric apparatus (PASS), it is not a single product.It is usually used in XGN ring main unit.So-called three
Station refers to three operating positions：1 is the closing position that disconnecting switch main fracture is connected, and 2 is the separate isolated location of main fracture,
3 is the earthing position of ground side.Three-station is exactly the function of incorporating disconnecting switch and earthed switch in fact, and by
One knife thus can realize mechanical latching completing, and prevent that major loop is powered to close ground knife, because one can only be at one knife
Position, and not as traditional disconnecting switch, operator is operator, ground knife is ground knife, may go out maloperation between two knives.And three
Station disconnecting switch is a knife, and one is at a time unique the operating position of knife, be not in main switch closing position
Put, be exactly in isolated location or earthing position.In traditional GIS, disconnecting switch and earthed switch are two functional units, use
Electric interlock is controlled, present recent design is exactly to use tri-station isolating switch, it is to avoid the possibility of maloperation.
In order to reach more preferable security performance, the tri-station isolating switch structure on market is all relative complex, and volume is larger,
Troublesome poeration, it is impossible to meet the requirement of miniaturization, and the accuracy of switch motion is poor, poor reliability.
Tri-station isolating switch is generally connected with bus, current bus be essentially all exposed outside, it is impossible to meet complete absolutely
, there is larger potential safety hazard in the requirement of edge, can not meet the use of multiple occasions.
In plug-in type combined electrical apparatus used in electrical network, tri-station isolating switch carries out group mainly by imported equipments and parts at present
Dress, its complex structure, high cost, the accuracy of switch motion is poor, poor reliability.
Content of the invention
For solving above-mentioned technical problem, the present invention provides technical scheme below：
Tri-station isolating switch, including insulated case, three station governor motions and three station operating mechanisms, three stations adjust machine
Structure is arranged in the insulated case, and three station governor motions are controlled by three station operating mechanisms and can be in closing position, isolated bit and ground connection
Switch between position, the top of the insulated case is provided with the bus fixed structure for fixing bus, and the bus fixed structure includes two
Open ended bus duct and insulating lid, the bus duct are arranged on the top of the insulated case, and the insulating lid is arranged on bus duct
Top and for sealing the bus duct, be provided with bus between bus duct and the insulating lid and the bus adjusted with three station
The connection of section mechanism.
Further, the insulated case includes that insulated case and lower insulated case, upper insulated case and lower insulated case vertically pass through
Flange seal connects, and on this, the box house of insulated case and lower insulated case forms the working space of the three stations governor motion.
Further, the three stations governor motion include to isolate power transmission shaft, connecting rod, closing position contact, ground connection position contact,
Connection contact and isolation knife；
The isolation power transmission shaft is arranged on the side in insulated case, isolation transmission through the insulated case and by isolation power transmission shaft
Axle is controlled and be connected to drive the link rotatable with connecting rod by three station operating mechanism；
The closing position contact and ground connection position contact are respectively provided with the both sides up and down of isolation power transmission shaft, and the closing position contact is worn
Cross the bus duct to be connected with the bus；
The connection contact is arranged in the insulated case opposite side away from the isolation power transmission shaft, the isolation knife with should
The top of connection contact is rotatably connected and can be while carrying out stretching motion；
The connecting rod with the isolation knife pivot joint and can drive the isolation knife turn to closing position be connected contact, ground connection position connect
At contact head and horizontal isolated bit.
Further, the closing position contact is upward through the bus duct and the top of closing position contact is arranged on mother
In wire casing, the bus is fixed by screws in the top of the closing position contact.
Further, the top of the connection contact is provided with conductive turning block, and the turning block is provided with through hole,
The circumferential wall of the through hole is provided with the fingertip spring contacted with the isolation knife, and the isolation knife is coordinated with the through hole and can be relative
The through hole carries out stretching motion.
Further, the top of the connection contact is provided with two upper static contacts, and the turning block setting two is upper quiet
Rotate between contact and with static contact on this and be connected.
Further, the isolation knife is copper contact tube, and the isolation knife is provided with and the conjunction with the pivot end of the connecting rod
Lock position contact, the moving contact of ground connection position contact connection.
Further, the insulating lid is screwed on the bus duct, shape between insulating lid and the bus duct
Become the cylindrical hole for placing the bus, the both ends of the bus duct and insulating lid are provided with closing set.
In the present invention tri-station isolating switch and bus link together and by bus be arranged on bus duct and insulating lid it
Between, such bus without exposed outside, it is possible to achieve the requirement of all insulation, it is also possible to used in multiple occasions, prevent operation
Middle production development security incident, it is ensured that job safety.
Description of the drawings
Fig. 1 is sectional view of the tri-station isolating switch in ground connection position；
Fig. 2 is the structural representation of tri-station isolating switch；
Fig. 3 is structural representation of the tri-station isolating switch in isolated bit；
Fig. 4 is the structure chart of turning block；
Fig. 5 is sectional view of the tri-station isolating switch in closing position.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment：
Tri-station isolating switch, Fig. 1 are sectional view of the tri-station isolating switch in ground connection position, as shown in figure 1, including absolutely
Edge case 101, three station governor motions 102 and three station operating mechanism (not shown)s, three station governor motion 102 is arranged should
In insulated case 101, three station governor motions 102 are controlled by three station operating mechanisms and can be in closing position, isolated bit and ground connection positions
Between switch, Fig. 2 is the structural representation of tri-station isolating switch, as shown in Fig. 2 the top of the insulated case 101 be provided with for
The bus fixed structure of fixing bus, the bus fixed structure include bus duct 104 and the insulating lid 105 for opening wide at both ends,
The bus duct 104 is arranged on the top of the insulated case 101, and the insulating lid 105 is arranged on the top of bus duct 104 and for close
The bus duct 104 is sealed, and bus 107 is provided between bus duct 104 and the insulating lid 105 and by three described in the bus 107 and Fig. 2
Station governor motion 102 connects.
In the present invention tri-station isolating switch and bus link together and by bus be arranged on bus duct and insulating lid it
Between, such bus without exposed outside, it is possible to achieve the requirement of all insulation, it is also possible to used in multiple occasions, prevent operation
Middle production development security incident, it is ensured that job safety.
On the basis of above-described embodiment, it is preferable that as shown in Fig. 2 the insulated case 101 includes 1011 He of insulated case
Lower insulated case 1012, upper insulated case 1011 and lower insulated case 1012 are vertically connected by flange seal, 1011 He of insulated case on this
The box house of 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, it is preferable that as shown in figure 1, the three stations governor motion 102 includes that isolation is passed
Moving axis 108, connecting rod 109, closing position contact 110, ground connection position contact 111, connection contact 112 and isolation knife 113；
As shown in figure 1, the isolation power transmission shaft 108 is arranged on insulation through the insulated case 101 and by isolation power transmission shaft 108
Side in case 101, isolation power transmission shaft 108 are controlled and be connected to drive the company with connecting rod 109 by three station operating mechanisms
Bar 109 is rotated；
As shown in figure 1, the closing position contact 110 and ground connection position contact 111 are separately positioned on the upper of isolation power transmission shaft 108
Lower both sides, it is preferable that the closing position contact 110 and ground connection position contact 111 are symmetricly set on up and down the two of isolation power transmission shaft 108
Side, the closing position contact 110 are connected through the bus duct 104 with the bus 107；
As shown in figure 1, the connection contact 112 is arranged in the insulated case 101 away from the another of the isolation power transmission shaft 108
Side, the isolation knife 113 are connected the top of contact 112 and are rotatably connected and can be while carrying out stretching motion with this, it is preferable that
The rotary centerline of the isolation knife 113 is in same level with the rotary centerline for isolating power transmission shaft 108；
As shown in figure 1, the connecting rod 109 with 113 pivot joint of the isolation knife and can drive the isolation knife 113 to turn to combined floodgate
At position connection contact 110, ground connection position connection contact 111 and horizontal isolated bit.
Three station governor motions of the present embodiment tri-station isolating switch are relatively easy, and small volume is easy to operate, permissible
The requirement of miniaturization, and low cost is realized, the accuracy height of switch motion, reliability are high.
On the basis of above-described embodiment, it is preferable that as shown in figure 1, the closing position contact 110 is upward through the mother
Wire casing 104 is simultaneously arranged on the top of closing position contact 110 in bus duct 104, and the bus 107 is fixed by screws in described
The top of closing position contact 110.
On the basis of above-described embodiment, it is preferable that Fig. 3 is structural representation of the tri-station isolating switch in isolated bit
Figure, as shown in figure 3, it is turning block that the top for connecting contact 112 described in Fig. 1 is provided with conductive turning block 118, Fig. 4
Structure chart, as shown in figure 4, the turning block 118 is provided with through hole 114, the circumferential wall of the through hole 114 be provided with Fig. 3
In fingertip spring 115, Fig. 3 that the isolation knife 113 is contacted, the isolation knife 113 and the through hole 114 coordinate and can relative this is logical
Hole 114 carries out stretching motion.
The present embodiment can be lifted electric conductivity, be lifted further by being provided with fingertip spring in the circumferential wall of through hole
The accuracy, reliability of switch motion.
On the basis of above-described embodiment, it is preferable that as shown in figure 3, the top for connecting contact 112 described in Fig. 1 is provided with
Two upper static contacts 116, the turning block 118 arrange between two upper static contacts 116 and with this on static contact 116 rotate and connect
Connect.
On the basis of above-described embodiment, it is preferable that Fig. 5 is sectional view of the tri-station isolating switch in closing position, such as
Shown in Fig. 5, the isolation knife 113 is copper contact tube, and the isolation knife 113 is provided with and the conjunction with the pivot end of the connecting rod 109
Lock position contact 110, the moving contact 117 of 111 connection of ground connection position contact.
On the basis of above-described embodiment, it is preferable that as shown in Fig. 2 the insulating lid 105 be screwed in described
On bus duct 104, the cylindrical hole for placing the bus 107, the bus duct 104 between insulating lid 105 and the bus duct 104, is formed
Closing set 106 is provided with the both ends of insulating lid 105.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (8)
1. tri-station isolating switch, it is characterised in that including insulated case, three station governor motions and three station operating mechanisms, three
Station governor motion is arranged in the insulated case, three station governor motions controlled by three station operating mechanisms and can closing position, every
Off normal and be grounded between position and switch, the top of the insulated case is provided with the bus fixed structure for fixing bus, and the bus is fixed
Structure includes bus duct and the insulating lid for opening wide at both ends, and the bus duct is arranged on the top of the insulated case, and the insulating lid sets
Put in the top of bus duct and for the bus duct is sealed, bus is provided between bus duct and the insulating lid and by the bus and institute
State the connection of three station governor motions.
2. tri-station isolating switch according to claim 1, it is characterised in that the insulated case include insulated case and under
Insulated case, upper insulated case and lower insulated case are vertically connected by flange seal, the box house of insulated case and lower insulated case on this
Form the working space of the three stations governor motion.
3. tri-station isolating switch according to claim 1, it is characterised in that the three stations governor motion includes isolation
Power transmission shaft, connecting rod, closing position contact, ground connection position contact, connection contact and isolation knife；
The isolation power transmission shaft is arranged on the side in insulated case through the insulated case and by isolation power transmission shaft, isolation power transmission shaft by
The three station operating mechanisms control is simultaneously connected with connecting rod to drive the link rotatable；
The closing position contact and ground connection position contact are respectively provided with the both sides up and down of isolation power transmission shaft, and the closing position contact passes through institute
State bus duct to be connected with the bus；
The connection contact is arranged in the insulated case opposite side away from the isolation power transmission shaft, and the isolation knife is connected with this
The top of contact is rotatably connected and can be while carrying out stretching motion；
The connecting rod with the isolation knife pivot joint and can drive the isolation knife turn to closing position be connected contact, ground connection position connection touch
At head and horizontal isolated bit.
4. tri-station isolating switch according to claim 3, it is characterised in that the closing position contact is upward through described
Bus duct is simultaneously arranged on the top of closing position contact in bus duct, and the bus is fixed by screws in the closing position contact
Top.
5. tri-station isolating switch according to claim 3, it is characterised in that the top of the connection contact is provided with can lead
The turning block of electricity, the turning block are provided with through hole, and the circumferential wall of the through hole is provided with the fingertip contacted with the isolation knife
Spring, the isolation knife coordinate with the through hole and can the relative through hole carry out stretching motion.
6. tri-station isolating switch according to claim 5, it is characterised in that the top of the connection contact is provided with two
Upper static contact, the turning block are arranged between two upper static contacts and are rotated with static contact on this and be connected.
7. the tri-station isolating switch according to claim 3～6 any claim, it is characterised in that the isolation knife
For copper contact tube, the isolation knife is provided with dynamic with what the closing position contact, ground connection position contact were connected with the pivot end of the connecting rod
Contact.
8. the tri-station isolating switch according to claim 1～6 any claim, it is characterised in that the insulating lid
It is screwed on the bus duct, between insulating lid and the bus duct, forms the cylindrical hole for placing the bus, the mother
The both ends of wire casing and insulating lid are provided with closing set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360325.5A CN104934256B (en) | 2015-06-26 | 2015-06-26 | Tri-station isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360325.5A CN104934256B (en) | 2015-06-26 | 2015-06-26 | Tri-station isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104934256A CN104934256A (en) | 2015-09-23 |
| CN104934256B true CN104934256B (en) | 2017-03-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510360325.5A Active CN104934256B (en) | 2015-06-26 | 2015-06-26 | Tri-station isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104934256B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7544907B1 (en) * | 2007-12-12 | 2009-06-09 | Eaton Corporation | Special provisions for network protector retrofits |
| CN101911412A (en) * | 2007-12-19 | 2010-12-08 | Abb技术股份公司 | Three-positions disconnector for medium voltage panels |
| CN203850197U (en) * | 2014-04-02 | 2014-09-24 | 特变电工中发上海高压开关有限公司 | Triple-position isolation grounding switch |
| CN204270998U (en) * | 2014-12-10 | 2015-04-15 | 江苏德春电力科技有限公司 | Be applied to the combination circuit breaker equipment in intelligent grid |
| CN104577911A (en) * | 2013-10-24 | 2015-04-29 | 镇江华翔机电制造有限公司 | T-shaped bus duct unit structure |
| CN204834471U (en) * | 2015-06-26 | 2015-12-02 | 协成科技股份有限公司 | Three -position disconnecting switch |
| CN205319648U (en) * | 2016-01-27 | 2016-06-15 | 浙江电盟电气有限公司 | Protection device of bus duct |
-
2015
- 2015-06-26 CN CN201510360325.5A patent/CN104934256B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7544907B1 (en) * | 2007-12-12 | 2009-06-09 | Eaton Corporation | Special provisions for network protector retrofits |
| CN101911412A (en) * | 2007-12-19 | 2010-12-08 | Abb技术股份公司 | Three-positions disconnector for medium voltage panels |
| CN104577911A (en) * | 2013-10-24 | 2015-04-29 | 镇江华翔机电制造有限公司 | T-shaped bus duct unit structure |
| CN203850197U (en) * | 2014-04-02 | 2014-09-24 | 特变电工中发上海高压开关有限公司 | Triple-position isolation grounding switch |
| CN204270998U (en) * | 2014-12-10 | 2015-04-15 | 江苏德春电力科技有限公司 | Be applied to the combination circuit breaker equipment in intelligent grid |
| CN204834471U (en) * | 2015-06-26 | 2015-12-02 | 协成科技股份有限公司 | Three -position disconnecting switch |
| CN205319648U (en) * | 2016-01-27 | 2016-06-15 | 浙江电盟电气有限公司 | Protection device of bus duct |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104934256A (en) | 2015-09-23 |
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| CB02 | Change of applicant information |
Address after: Tongan District of Xiamen City, Fujian province 361000 Ring Road East Sea Industrial Park No. 41 Meixi Lake plant Applicant after: SUCTRN TECHNOLOGY CO., LTD. Address before: Tongan District of Xiamen City, Fujian province 361000 Ring Road East Sea Industrial Park No. 41 Meixi Lake plant Applicant before: Xiamen Xiecheng Industrial Co., Ltd. |
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| GR01 | Patent grant |