CN202153495U - Solid insulating three-station isolating/grounding switch - Google Patents
Solid insulating three-station isolating/grounding switch Download PDFInfo
- Publication number
- CN202153495U CN202153495U CN 201120277594 CN201120277594U CN202153495U CN 202153495 U CN202153495 U CN 202153495U CN 201120277594 CN201120277594 CN 201120277594 CN 201120277594 U CN201120277594 U CN 201120277594U CN 202153495 U CN202153495 U CN 202153495U
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- fixed contact
- epoxy resin
- resin housing
- grounding
- contact
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Abstract
The utility model provides a solid insulating three-station isolating/grounding switch, comprising a three-phase solid insulating main conducting loop, a grounding mother board, a mounting support, a seal plate, a rotation type magnetic fluid dynamic seal apparatus, and an operating mechanism, wherein the three-phase solid insulating main conducing loop comprises an epoxy resin housing, a conducting static contact, a middle static contact, a grounding static contact, and a dynamic contact, the conducting static contact is fixed sealed at the end portion of the epoxy resin housing, the middle static contact is fixedly sealed at the middle portion of the epoxy resin housing, the grounding static contact is fixedly sealed at the other end of the epoxy resin housing, one end of the epoxy resin housing is fixed on the mounting support, the grounding static contact is connected with the grounding mother board, the grounding mother board is fixed on the mounting support, the mounting support is equipped with the seal plate, the other side of the seal plate is equipped with an operating mechanism, the nylon screw rod of the operating mechanism extends into the three-phase solid insulating main conducting loop via the seal plate, the seal plate performs sealing at the position of the nylon screw rod by using the rotation type magnetic fluid dynamic seal apparatus, and the nylon screw rod is equipped with the dynamic contact and a slide contact finger. A single-phase complete insulating main loop is formed through encapsulating the main conducting components of the three-station switch body inside the insulating package body, thereby resolving the problem that the various conducting components of the three-station switch are assembled in bulk, enabling the entire mounting of the three-station switch to be simplified, effectively ensuring the production mounting and quality debugging and being more convenient for batch production.
Description
Technical field
The utility model relates to a kind of high pressure three-station isolating/grounding switch, refers in particular to a kind of solid insulation high-tension switch cabinet and uses three-station isolating/grounding switch.
Background technology
In the high-voltage switch gear field; Medium pressure gas insulated metal sealing switch equipment is the nineties in the last century complete power distribution equipment of new and high technology that gets up of new development in the world; And it is little with its volume; Antipollution obtains users' approval very soon, natural environment and the abominable relatively occasions of condition such as the particularly suitable reliability requirement is high and underground, plateau, coastal area.Its inner main components and parts three-station isolating/grounding switch adopts the three-station of Direct Action Type or guillotine type mostly; Because of itself does not possess insulation property; Has only the volume that relies on the higher external insulation gas of insulation property, just can dwindle switch like SF6 gas; Yet SF6 gas is defined as one of restriction using gases by " Kyodo Protocol " as one of six kinds of warm and humid effect gases.Thereby seek a kind of miniaturization level can satisfy insulating requirements and can reach again the time, few safeguard or non-maintaining high voltage switchgear has become worldwide research topic.Satisfy the requirement of high voltage switchgear integral miniaturization, must do by elder generation's main components and parts internally.Thereby the research and development of components and parts that self have insulation property are imperative.Should satisfy the miniaturization of switchgear, cancel environmentally harmful SF6 insulating gas again, satisfy environmental protection requirement, the solid insulation The Application of Technology is uniquely can meet the requirements of feasible solution at present.
The utility model content
The purpose of the utility model is satisfying above-mentioned requirement, provides a kind of solid insulation high-tension switch cabinet to use three-station isolating/grounding switch.
The purpose of the utility model is achieved in that a kind of solid insulation three-station isolating/grounding switch; It comprises the three-phase solid insulation main conductive circuit, ground connection busbar, mounting bracket, sealing plate, the movable sealing of rotary magnetic fluid, operating mechanism; The main conductive circuit of described three-phase solid insulation comprises epoxy resin housing, conduction fixed contact, middle fixed contact, ground connection fixed contact, moving contact; Said conduction fixed contact is enclosed in the end of epoxy resin housing admittedly, and said middle fixed contact is enclosed in the middle part of epoxy resin housing admittedly, and said ground connection fixed contact is enclosed in the other end of epoxy resin housing admittedly; Epoxy resin housing one end is fixed on the mounting bracket; Said ground connection fixed contact links to each other with the ground connection busbar, and the ground connection busbar also is fixed on the mounting bracket, on the said mounting bracket sealing plate is installed; Sealing plate opposite side operating mechanism is installed; Nylon screw mandrel on the operating mechanism stretches in the main conductive circuit of three-phase solid insulation through sealing plate, adopts rotary magnetic fluid dynamic sealing device to seal through nylon screw mandrel place on the sealing plate, and moving contact and slip fingertip are installed on the nylon screw mandrel; Described moving contact and slip fingertip can seesaw when the rotation of nylon screw mandrel, and described moving contact adopts and is slidingly connected with conduction fixed contact, middle fixed contact, ground connection fixed contact.
Further, said conduction fixed contact inside is equipped with the slip fingertip, and the slip fingertip also is installed in the bottom of middle fixed contact.
The operating principle of solid insulation three-station isolating/grounding switch: start-up operation mechanism, nylon screw mandrel rotation on the operating mechanism drives the moving contact motion on it.When will conducting electricity fixed contact when being communicated with middle fixed contact, three-station, moving contact is in conduction position; When moving contact mediated in the middle of the fixed contact, middle fixed contact neither was connected with the conduction fixed contact, also is not connected with the ground connection fixed contact, and three-station is in the isolated location; When moving contact with middle fixed contact with after the ground connection fixed contact is communicated with, three-station is in earthing position.
Than common three-station isolating/grounding switch, the beneficial effect of the utility model is:
1, is encapsulated in the insulation-encapsulated main body through the leading electric parts of above-mentioned three-station body are watered, thereby forms a mutually complete insulation major loop, changed three-station each part mentioned above problem in bulk in the past.Thereby the integral installation that makes three-station becomes more to oversimplify and has guaranteed that effectively product is installed and the debugging quality, is convenient to more produce in batches.
2, holding of maximum a little is that switch itself has possessed insulation property; Cooperate with the components and parts of other solid insulation, can form complete solid insulation switch cabinet, and under the situation of cancellation SF6 gas; Make switchgear reach miniaturization equally, have better insulation property simultaneously.
3, three-station isolating/grounding switch waters envelope with epoxy resin through AGP technology, adopts the solid insulation technology, does not adopt SF6 gas, more environmental protection.
4, the leading electric parts of described three-station body adopt and are slidingly connected, and are furnished with the spring touch finger of varying number according to different size of current.Last lower wire end has adopted static and the dual ways of connecting of sliding, and has guaranteed the reliability that the turnover line end is electrically connected.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structure cutaway view of the utility model.
In the accompanying drawing, the major loop of 1-three-phase solid insulation, 2-ground connection busbar, 3-mounting bracket; 4-sealing plate, the movable sealing of 5-rotary magnetic fluid, 6-operating mechanism, 101-epoxy resin housing; 102-conduction fixed contact, 103-moving contact, 104-middle fixed contact; 105-ground connection fixed contact, 201-sliding spring fingertip, 202-spring touch finger.
Embodiment
Below in conjunction with accompanying drawing the utility model specific embodiment is set forth in detail.
As shown in Figure 1; The utility model relates to a kind of solid insulation high-tension switch cabinet and uses three-station isolating/grounding switch, and it comprises that major loop 1, ground connection busbar 2, mounting bracket 3, sealing plate 4, rotary magnetic fluid movable sealing 5, the operating mechanism 6 of three-phase solid insulation are combined into a complete solid insulation three-station isolating/grounding switch.
As shown in Figure 2, the utility model relates to a kind of solid insulation high-tension switch cabinet and uses three-station isolating/grounding switch, and the major loop 1 of its three-phase solid insulation all waters envelope by epoxy resin through AGP technology.Main body is watered envelope has ground connection fixed contact 106, middle fixed contact 104, conduction fixed contact 102, and it waters envelope thickness is the 8-10 millimeter, and each electric conductor of major loop forms extremely complete solid insulation parts through watering to be honored as a queen.Every utmost point major loop itself has possessed insulation property.The base of ground connection fixed contact 106 can link to each other with ground connection busbar 2, when the moving contact 103 of switch with middle fixed contact 104 with after ground connection fixed contact 106 is communicated with, three-station is in earthing position.The base of middle fixed contact 104 can be with the moved end of circuit breaker or other electric conductor is connected, as the leading-out terminal usefulness of three-station, when moving contact 103 will conduct electricity when being communicated with middle fixed contact 104 for quiet 102, three-station is in conduction position.When moving contact 103 mediates in the middle of the fixed contact 104, three-station is in the isolated location.
As shown in Figure 2, the leading electric parts of three-station body adopt and are slidingly connected, and are furnished with the spring touch finger 202 of varying number according to different rated current sizes.Last lower wire end has adopted static and sliding spring fingertip 201 dual ways of connecting, has guaranteed the reliability that the turnover line end is electrically connected.
This shows; The utility model is encapsulated on the epoxy resin housing 101 through above-mentioned ground connection fixed contact 105, middle fixed contact 104, conduction fixed contact 102 are pressed to annotate through vacuum APG through the poured with epoxy resin layer admittedly; Thereby form a mutually complete solid insulation major loop, change this each part mentioned above in the three-station in the past and be separately fixing, concentricity, synchronism and all be difficult to the problem that guarantees.Reached the purpose of overall package, when ensuring the quality of products, be more convenient for producing in batches.
It is to be noted; The utility model is not limited to above-mentioned execution mode; Any simple modification, equivalent variations and modification that any professional and technical personnel of being familiar with does the foregoing description in based on the utility model technical scheme all belong in the protection range of the utility model.
Claims (2)
1. solid insulation three-station isolating/grounding switch; It comprises the three-phase solid insulation main conductive circuit, ground connection busbar, mounting bracket, sealing plate, the movable sealing of rotary magnetic fluid, operating mechanism; It is characterized in that: the main conductive circuit of described three-phase solid insulation comprises epoxy resin housing, conduction fixed contact, middle fixed contact, ground connection fixed contact, moving contact; Said conduction fixed contact is enclosed in the end of epoxy resin housing admittedly, and said middle fixed contact is enclosed in the middle part of epoxy resin housing admittedly, and said ground connection fixed contact is enclosed in the other end of epoxy resin housing admittedly; Epoxy resin housing one end is fixed on the mounting bracket; Said ground connection fixed contact links to each other with the ground connection busbar, and the ground connection busbar also is fixed on the mounting bracket, on the said mounting bracket sealing plate is installed; Sealing plate opposite side operating mechanism is installed; Nylon screw mandrel on the operating mechanism stretches in the main conductive circuit of three-phase solid insulation through sealing plate, adopts rotary magnetic fluid dynamic sealing device to seal through nylon screw mandrel place on the sealing plate, and moving contact and slip fingertip are installed on the nylon screw mandrel; Described moving contact and slip fingertip can seesaw when the rotation of nylon screw mandrel, and described moving contact adopts and is slidingly connected with conduction fixed contact, middle fixed contact, ground connection fixed contact.
2. a kind of solid insulation three-station isolating/grounding switch as claimed in claim 1, said conduction fixed contact inside is equipped with the slip fingertip, and the slip fingertip also is installed in the bottom of middle fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120277594 CN202153495U (en) | 2011-08-02 | 2011-08-02 | Solid insulating three-station isolating/grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120277594 CN202153495U (en) | 2011-08-02 | 2011-08-02 | Solid insulating three-station isolating/grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202153495U true CN202153495U (en) | 2012-02-29 |
Family
ID=45693989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120277594 Expired - Lifetime CN202153495U (en) | 2011-08-02 | 2011-08-02 | Solid insulating three-station isolating/grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202153495U (en) |
Cited By (4)
| 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 |
| CN103280369A (en) * | 2013-06-19 | 2013-09-04 | 郭建厂 | Outdoor enclosed type visual intelligent isolating and grounding switch |
| CN106409592A (en) * | 2016-11-14 | 2017-02-15 | 许继集团有限公司 | GIS (gas insulated metal-enclosed switchgear), three-position disconnecting switch thereof, moving contact device and moving contact |
| CN108648947A (en) * | 2018-08-16 | 2018-10-12 | 沈阳华德海泰电器有限公司 | A kind of three-station isolating grounding switch |
-
2011
- 2011-08-02 CN CN 201120277594 patent/CN202153495U/en not_active Expired - Lifetime
Cited By (6)
| 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 |
| CN103280369A (en) * | 2013-06-19 | 2013-09-04 | 郭建厂 | Outdoor enclosed type visual intelligent isolating and grounding switch |
| CN103280369B (en) * | 2013-06-19 | 2015-12-23 | 江苏智临电气科技有限公司 | Outdoor fixed sealing type visible intelligent isolation, earthed switch |
| CN106409592A (en) * | 2016-11-14 | 2017-02-15 | 许继集团有限公司 | GIS (gas insulated metal-enclosed switchgear), three-position disconnecting switch thereof, moving contact device and moving contact |
| CN108648947A (en) * | 2018-08-16 | 2018-10-12 | 沈阳华德海泰电器有限公司 | A kind of three-station isolating grounding switch |
| CN108648947B (en) * | 2018-08-16 | 2023-11-03 | 沈阳华德海泰电器有限公司 | Three-station isolation grounding switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Solid insulating three-station isolating/grounding switch Effective date of registration: 20150104 Granted publication date: 20120229 Pledgee: Bank of Beijing Limited by Share Ltd Changsha branch Pledgor: Hu'nan Fengri Power and Electric Co., Ltd. Registration number: 2014430000027 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160218 Granted publication date: 20120229 Pledgee: Bank of Beijing Limited by Share Ltd Changsha branch Pledgor: Hu'nan Fengri Power and Electric Co., Ltd. Registration number: 2014430000027 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120229 |
|
| CX01 | Expiry of patent term |