CN201392762Y - Ground switch - Google Patents
Ground switch Download PDFInfo
- Publication number
- CN201392762Y CN201392762Y CN200920000162U CN200920000162U CN201392762Y CN 201392762 Y CN201392762 Y CN 201392762Y CN 200920000162 U CN200920000162 U CN 200920000162U CN 200920000162 U CN200920000162 U CN 200920000162U CN 201392762 Y CN201392762 Y CN 201392762Y
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- CN
- China
- Prior art keywords
- ground connection
- contact
- auxiliary earth
- earthed switch
- fixed
- 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.)
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Abstract
The utility model relates to a ground switch, which comprises a switch skeleton (7), a ground operating spindle (8), a ground blade component, a static contact block (2), a contact insulating bracket (3) and a contact component. The ground operating spindle (8) is arranged in the switch skeleton (7) in a rotating way, the ground blade component is fixedly arranged on the ground operating spindle (8), and the contact component comprises a ground static contact (4) embedded on the static contact block (2) fixedly arranged on the contact insulating bracket (3) and an auxiliary ground static contact (6) which is fixedly arranged on the contact insulating bracket (3) and electrically connected with an auxiliary ground connection row (5). The utility model has a double grounding function, and can be respectively connected with the two ends of the high-voltage fuse, thereby making the equipment maintenance and fuse replacement more secure. Moreover, the utility model has the advantages of coaxial double grounding, simple structure and reliable performance.
Description
(1) technical field
The utility model relates to a kind of earthed switch, relates to a kind of earthed switch that is used for the gas-filled type on-load switch together with fuse combined electric apparatus particularly.
(2) background technology
In power equipment, particularly in the electric equipment of gas-filled type on-load switch and fuse combination, often need to provide a kind of earthed switch.In the process of fuse maintenance, replacing,, thereby avoid dangerous generation if it is safest needing for the purpose of safety to carry out ground connection to the circuit at fuse two ends.
In the existing device, often adopt to the two ends of fuse respectively the mode of ground connection implement, this device structure complexity is operated also very loaded down with trivial detailsly, causes danger easily.
Consideration for above-mentioned purpose, developing a kind of and on-load switch at this can matching used earthed switch, the function of two ground connection is provided in the process that this earthed switch can overhaul, change at fuse, just make circuit ground connection all at fuse two ends, this earthed switch adopts coaxial pair of ground connection simultaneously, just when rotating the ground connection operating axis, can rotate main ground connection blade and auxiliary earth blade simultaneously, thereby realize two ground connection.
(3) utility model content
[problem that will solve]
The purpose of this utility model provides a kind of two grounding functions that have, and can be connected with the two ends of high-tension fuse respectively, makes in overhaul of the equipments, changes safer earthed switch in the fuse.
Another purpose provides a kind of earthed switch that adopts coaxial pair of ground connection, simple in structure and dependable performance.
Again a purpose provide a kind of can with the matching used earthed switch of on-load switch.
[technical scheme]
Be achieved through the following technical solutions above-mentioned purpose:
A kind of earthed switch, this earthed switch comprises that switch skeleton 7, ground connection operation axis 8, ground connection blade assembly, stationary contact headstock 2, contact insulating support 3 and contact assembly constitute, wherein ground connection operation axis 8 can be rotatably set in the switch skeleton 7, the ground connection blade assembly is fixed on the ground connection operation axis 8, is connected the auxiliary earth fixed contacts 6 that row 5 is electrically connected on described contact assembly comprises the ground connection fixed contact 4 that is embedded on the stationary contact headstock 2 that is fixed in the contact insulating support 3 and is fixed in contact insulating support 3 and with auxiliary earth.
Described ground connection blade assembly bag is used to contact the three-phase master ground connection blade 10 of ground connection fixed contact 4, be fixed on the three-phase master ground connection blade 10 and the folded spring 9 of pretightning force is provided, be positioned at the steel spring plate 11 of ground connection blade end, and be fixed on and be used for the auxiliary earth blade 12 that contacts with auxiliary earth fixed contact 6 on the steel spring plate 11.
Described stationary contact headstock 2 is connected busbar 1 and is electrically connected with the major loop of earthed switch.
Described auxiliary earth fixed contact 6 is connected row 5 and is electrically connected with auxiliary earth.
Described three-phase master ground connection blade 10, ground connection fixed contact 4 are connected busbar 1 and constitute main grounded circuit with major loop.
Described auxiliary earth blade 12, auxiliary earth fixed contact 6 are connected row 5 and are interconnected and constitute the auxiliary earth loop with auxiliary earth.
Described main grounded circuit and described auxiliary earth loop are connected to the two ends of high-tension fuse 13.
[beneficial effect]
Earthed switch of the present utility model has two grounding functions, can be connected with the two ends of high-tension fuse respectively, makes in overhaul of the equipments, replacing fuse safer; This earthed switch adopts the earthed switch of coaxial pair of ground connection, simple in structure and dependable performance; This earthed switch can with the supporting use of on-load switch; After described earthed switch closed a floodgate, main ground connection can be born the thermally-stabilised short circuit current of 20kA/2s, and auxiliary earth can be born the thermally-stabilised short circuit current of 2kA/2s.
(4) description of drawings
Fig. 1 is the earthed switch front view that is in gate-dividing state;
Fig. 2 is the end view of earthed switch shown in Fig. 1;
Fig. 3 is the earthed switch circuit theory diagrams;
Fig. 4 is the front view that is in the earthed switch of "on" position.
(5) embodiment
As shown in Fig. 1 and Fig. 2, this earthed switch is mainly used in the earthed switch of gas-filled type on-load switch in conjunction with fuse combined electric apparatus.The supporting use of this earthed switch and on-load switch, this earthed switch has two grounding functions, is connected with the fuse two ends respectively, maintenance, replacing fuse safety, this earthed switch adopts coaxial pair of ground connection, simple in structure, dependable performance.
Fig. 1 is the earthed switch front view that is in gate-dividing state, and Fig. 2 is the end view of earthed switch shown in Fig. 1.This earthed switch is connected row 5 and auxiliary earth fixed contact 6 etc. and is formed by switch skeleton 7, ground connection operation axis 8, three-phase master ground connection blade 10, folded spring 9, steel spring plate 11, auxiliary earth blade 12, contact insulating support 3, stationary contact headstock 2, ground connection fixed contact 4, auxiliary earth.Ground connection operation axis 8 can be rotatably set in the switch skeleton 7, the ground connection blade assembly is fixed on the ground connection operation axis 8, is connected the auxiliary earth fixed contacts 6 that row 5 is electrically connected on contact assembly comprises the ground connection fixed contact 4 that is embedded on the stationary contact headstock 2 that is fixed in the contact insulating support 3 and is fixed in contact insulating support 3 and with auxiliary earth.
The ground connection blade assembly comprises the three-phase master ground connection blade 10 that is used to contact ground connection fixed contact 4, be fixed on the three-phase master ground connection blade 10 and the folded spring 9 of pretightning force is provided, be positioned at the steel spring plate 11 of ground connection blade end, and be fixed on and be used for the auxiliary earth blade 12 that contacts with auxiliary earth fixed contact 6 on the steel spring plate 11.Stationary contact headstock 2 is connected busbar 1 and is electrically connected with the major loop of earthed switch.Auxiliary earth fixed contact 6 is connected row 5 and is electrically connected with auxiliary earth.Three-phase master ground connection blade 10, ground connection fixed contact 4 are connected busbar 1 and constitute main grounded circuit with major loop.Auxiliary earth blade 12, auxiliary earth fixed contact 6 are connected row 5 and are interconnected and constitute the auxiliary earth loop with auxiliary earth.
Earthed switch circuit theory diagrams as shown in Figure 3, wherein main grounded circuit 14 and auxiliary earth loop 15 are connected to the two ends of high-tension fuse 13.
As Fig. 4 is the front view that is in the earthed switch of "on" position, during combined floodgate, be rotated counterclockwise, drive three-phase master ground connection blade 10 and 12 rotations of auxiliary earth blade by operational grounding operating axis 8, after combined floodgate puts in place, main ground connection blade 10 relies on the pretightning force of folded spring 9 reliably to contact with ground connection fixed contact 4, and auxiliary earth blade 12 relies on the deformation force of steel spring plate 7 to contact with auxiliary earth fixed contact 6.After earthed switch closed a floodgate, main ground connection can be born the thermally-stabilised short circuit current of 20kA/2s, and auxiliary earth can be born the thermally-stabilised short circuit current of 2kA/2s.
Above listed a series of detailed description only is specifying at a feasibility embodiment of the present invention, but this embodiment is not in order to limit claim of the present invention, allly do not break away from equivalent embodiment or the change that skill spirit of the present invention is done, for example, equivalence embodiment Deng changing all should be contained within the claim of this case.
Claims (7)
1. earthed switch, this earthed switch comprises that switch skeleton (7), ground connection operation axis (8), ground connection blade assembly, stationary contact headstock (2), contact insulating support (3) and contact assembly constitute, wherein ground connection operation axis (8) can be rotatably set in the switch skeleton (7), the ground connection blade assembly is fixed on the ground connection operation axis (8), it is characterized in that:
Described contact assembly comprises the ground connection fixed contact (4) that is embedded on the stationary contact headstock (2) that is fixed in the contact insulating support (3) and is fixed in contact insulating support (3) and goes up and is connected with auxiliary earth the auxiliary earth fixed contact (6) of row (5) electrical connection.
2. according to the earthed switch described in the claim 2, it is characterized in that: described ground connection blade assembly comprises the three-phase master ground connection blade (10) that is used to contact ground connection fixed contact (4), be fixed on three-phase master ground connection blade (10) and go up and provide the folded spring (9) of pretightning force, be positioned at the steel spring plate (11) of ground connection blade end, and be fixed on and be used for the auxiliary earth blade (12) that contacts with auxiliary earth fixed contact (6) on the steel spring plate (11).
3. according to the earthed switch described in claim 1 or 2, it is characterized in that: described stationary contact headstock (2) is connected busbar (1) and is electrically connected with the major loop of earthed switch.
4. according to the earthed switch described in claim 1 or 2, it is characterized in that: described auxiliary earth fixed contact (6) is connected row (5) and is electrically connected with auxiliary earth.
5. earthed switch according to claim 3 is characterized in that: described three-phase master ground connection blade (10), ground connection fixed contact (4) are connected busbar (1) and constitute main grounded circuit with major loop.
6. earthed switch according to claim 4 is characterized in that: described auxiliary earth blade (12), auxiliary earth fixed contact (6) are connected row (5) and are interconnected and constitute the auxiliary earth loop with auxiliary earth.
7. according to claim 3 or 4 described earthed switches, it is characterized in that: described main grounded circuit and described auxiliary earth loop are connected to the two ends of high-tension fuse (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920000162U CN201392762Y (en) | 2009-01-05 | 2009-01-05 | Ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920000162U CN201392762Y (en) | 2009-01-05 | 2009-01-05 | Ground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201392762Y true CN201392762Y (en) | 2010-01-27 |
Family
ID=41599584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920000162U Expired - Fee Related CN201392762Y (en) | 2009-01-05 | 2009-01-05 | Ground switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201392762Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227058A (en) * | 2011-03-15 | 2011-10-26 | 广东阿尔派电力科技股份有限公司 | Solid-insulated vacuum ring main unit and system thereof |
| CN103474284A (en) * | 2013-09-24 | 2013-12-25 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
-
2009
- 2009-01-05 CN CN200920000162U patent/CN201392762Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227058A (en) * | 2011-03-15 | 2011-10-26 | 广东阿尔派电力科技股份有限公司 | Solid-insulated vacuum ring main unit and system thereof |
| CN102227058B (en) * | 2011-03-15 | 2014-10-29 | 广东阿尔派电力科技股份有限公司 | Solid-insulated vacuum ring main unit and system thereof |
| CN103474284A (en) * | 2013-09-24 | 2013-12-25 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
| CN103474284B (en) * | 2013-09-24 | 2015-07-22 | 东盟电气集团浙江开关有限公司 | Three-work-station dual-ground-connection load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100127 Termination date: 20160105 |