CN201570420U - Indoor high-voltage three-position disconnecting switch - Google Patents
Indoor high-voltage three-position disconnecting switch Download PDFInfo
- Publication number
- CN201570420U CN201570420U CN2009202243093U CN200920224309U CN201570420U CN 201570420 U CN201570420 U CN 201570420U CN 2009202243093 U CN2009202243093 U CN 2009202243093U CN 200920224309 U CN200920224309 U CN 200920224309U CN 201570420 U CN201570420 U CN 201570420U
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- contact
- pedestal
- switch
- fixed
- insulating
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- Expired - Fee Related
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Abstract
The utility model discloses an indoor high-voltage three-position disconnecting switch in a power transmission and transformation system. A steel pedestal (2), a rotary shaft (5) and a link rod integrates disconnection and grounding together, the pedestal (2) is the frame of the whole disconnecting switch, an insulating contact support (1) and a grounding contact (6) are respectively fixed on the upper and the lower parts of the pedestal (2), a static contact (12) is fixed on the insulating contact support (1), and is articulated with a contact knife (10), a disconnecting contact (9) is fixed on an insulating stand (8) fixed on a socket board (7), a crank arm (4) is arranged at the middle of the pedestal (2), the crank arm (4) and a pull rod crank arm (3) are riveted on the rotary shaft (5), the crank arm (4) provides source power for the whole switch, and the pull rod crank arm (3) is connected with the contact knife (10) through an insulating pull rod (11). The disconnecting switch dispenses with complex linkage, and has the advantages of reliable insulating property, easy adjustment, reliable action, compact and small structure and lighter weight, and the size of a switch cabinet can be reduced.
Description
Technical field
The utility model relates to the indoor high-voltage isolating switch in a kind of electric power power transmission and transformation system, and is relevant with the three-station of band ground connection and isolation especially.
Background technology
Indoor high-voltage isolating switch is used for switching under the high-tension line current-carrying situation in the electric power power transmission and transformation system and electric equipments such as the high voltage bus that overhauled, circuit breaker is carried out the electrical equipment isolation with charged high-tension line.At present, in the power transmission and transformation system of rated voltage 12kV and 40.5kV, three-phase alternating current 50Hz, public is that isolating switch and earthed switch are installed separately, and both respectively take charge of its duty, and mechanical interlocking is arranged between the two.This mounting means makes the switch cubicle volume bigger, and the interlock complexity increases complete workload, and operation sequence is loaded down with trivial details.Along with the upgrading of High-Voltage Electrical Appliances original paper, being extensive use of of the particularly appearance of permanent magnetic actuator vacuum circuit breaker, and SF6 on-load switch requires the fixed high-voltage switch cubicle structure compact more, miniaturization more.Existing isolating switch can not satisfy this requirement.
The utility model content
The purpose of this utility model is the needs that adapt to the box switch cubicle of compact and " handing in hand " electric power system, designs a kind of miniaturization indoor high-voltage tri-station isolating switch that isolating switch and earthed switch are combined together.
The technical solution adopted in the utility model is: a kind of indoor high-voltage tri-station isolating switch, comprise fixed contact, grounding contact and contact knife, it is characterized in that, by the steel construction pedestal, rotating shaft and connecting rod will be isolated and ground connection unites two into one, pedestal is the framework of whole isolated switch, the pedestal top and the bottom are fixed with insulation contact bearing and grounding contact respectively, be fixed with fixed contact on the insulation contact bearing, fixed contact and contact knife pin joint, insulating contact is fastened on the insulation column that is fixedly mounted on the frid, and the pedestal middle part is provided with connecting lever, and connecting lever and the riveting of pull bar connecting lever are contained in the rotating shaft, connecting lever provides driving source for whole switch, and the pull bar connecting lever is connected with contact knife by insulated tension pole.
The indoor high-voltage tri-station isolating switch that the utility model provides combines isolating switch and earthed switch together under the connection of connecting rod, has saved complexity interlocking between the two, realizes combined floodgate-separating brake-ground connection on same switch.Operate more laborsavingly, can guarantee that more on/off switch puts in place.Insulation property are reliable, adjust simple, reliable in action, compact conformation is small and exquisite, weight saving makes the switch cubicle volume-diminished.
Description of drawings
Accompanying drawing is the structural representation of an embodiment of the utility model indoor high-voltage tri-station isolating switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, insulation contact bearing 2, pedestal 3, pull bar connecting lever 4, connecting lever 5, rotating shaft 6, grounding contact 7, frid 8, insulation column 9, insulating contact 10, contact knife 11, insulated tension pole 12, fixed contact
The utility model indoor high-voltage tri-station isolating switch, comprise fixed contact 12, grounding contact 6 and contact knife 10, it is characterized in that, by steel construction pedestal 2, rotating shaft 5 and connecting rod will be isolated and ground connection unites two into one, pedestal 2 is frameworks of whole isolated switch, pedestal 2 top and the bottom are fixed with insulation contact bearing 1 and grounding contact 6 respectively, be fixed with fixed contact 12 on the insulation contact bearing 1, fixed contact 12 and contact knife 10 pin joints, insulating contact 9 is fastened on the insulation column 8 that is fixedly mounted on the frid 7, pedestal 2 middle parts are provided with connecting lever 4, connecting lever 4 and 3 rivetings of pull bar connecting lever are contained in the rotating shaft 5, connecting lever 4 provides driving source for whole switch, and pull bar connecting lever 3 is connected with contact knife 10 by insulated tension pole 11.
Be in separating brake and connecting lever 4 obtains under the exterior power at circuit breaker, drive pull bar connecting lever 3 actions that are fixed on equally in the rotating shaft 5, do orientation around fixed contact 12 and rotatablely move thereby drive contact knife 10.Contact knife 10 switch when the centre position is in isolation; Under isolation, the turning clockwise of contact knife 10, and during with grounding contact 6 interlocks, switch is in ground state; Under isolation, contact knife 10 is rotated counterclockwise, and during with insulating contact 9 interlocks, switch is in engagement state.Just, realized joint, isolation (centre position) and the ground connection of switch because the orientation of contact knife 10 rotatablely moves.
Claims (1)
1. indoor high-voltage tri-station isolating switch, comprise fixed contact (12), grounding contact (6) and contact knife (10), it is characterized in that: by steel construction pedestal (2), rotating shaft (5) and connecting rod will be isolated and ground connection unites two into one, pedestal (2) is the framework of whole isolated switch, pedestal (2) top and the bottom are fixed with insulation contact bearing (1) and grounding contact (6) respectively, be fixed with fixed contact (12) on the insulation contact bearing (1), fixed contact (12) and contact knife (10) pin joint, insulating contact (9) is fastened on the insulation column (8) that is fixedly mounted on the frid (7), pedestal (2) middle part is provided with connecting lever (4), connecting lever (4) and pull bar connecting lever (3) riveting are contained in the rotating shaft (5), connecting lever (4) provides driving source for whole switch, and pull bar connecting lever (3) is connected with contact knife (10) by insulated tension pole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202243093U CN201570420U (en) | 2009-10-22 | 2009-10-22 | Indoor high-voltage three-position disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202243093U CN201570420U (en) | 2009-10-22 | 2009-10-22 | Indoor high-voltage three-position disconnecting switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201570420U true CN201570420U (en) | 2010-09-01 |
Family
ID=42662720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202243093U Expired - Fee Related CN201570420U (en) | 2009-10-22 | 2009-10-22 | Indoor high-voltage three-position disconnecting switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201570420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531413A (en) * | 2013-10-22 | 2014-01-22 | 无锡希恩电气有限公司 | Simple high-voltage release switch |
| CN106252142A (en) * | 2016-08-11 | 2016-12-21 | 珠海市可利电气有限公司 | Compact air insulation cabinet disconnecting switch structure |
-
2009
- 2009-10-22 CN CN2009202243093U patent/CN201570420U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531413A (en) * | 2013-10-22 | 2014-01-22 | 无锡希恩电气有限公司 | Simple high-voltage release switch |
| CN103531413B (en) * | 2013-10-22 | 2016-08-17 | 无锡希恩电气有限公司 | Simple high-voltage release switch |
| CN106252142A (en) * | 2016-08-11 | 2016-12-21 | 珠海市可利电气有限公司 | Compact air insulation cabinet disconnecting switch structure |
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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: 20100901 Termination date: 20161022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |