CN201060788Y - Indoor high-tension vacuum load switch-fuse combined electrical apparatus - Google Patents
Indoor high-tension vacuum load switch-fuse combined electrical apparatus Download PDFInfo
- Publication number
- CN201060788Y CN201060788Y CNU2007200245574U CN200720024557U CN201060788Y CN 201060788 Y CN201060788 Y CN 201060788Y CN U2007200245574 U CNU2007200245574 U CN U2007200245574U CN 200720024557 U CN200720024557 U CN 200720024557U CN 201060788 Y CN201060788 Y CN 201060788Y
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- CN
- China
- Prior art keywords
- isolating switch
- switch
- vacuum
- vacuum interrupter
- arc extinguishing
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an indoor high-voltage vacuum load switch, in particular to a fuse combination unit, comprising a mounting frame, an isolating switch, a vacuum arc extinguishing chamber, and a high-voltage fuse box, wherein, the isolating switch, the vacuum arc extinguishing chamber, and the high-voltage fuse box are respectively fixed on the mounting frame via a plurality of insulators; the isolating switch is arranged at the top of the vacuum arc extinguishing chamber; the high-voltage fuse box is arranged under the vacuum arc extinguishing chamber; a spring mechanism fixed on the mounting frame is connected with the vacuum arc extinguishing chamber via a link mechanism; the spring mechanism is used for controlling the on-off of the vacuum arc extinguishing chamber; the high-voltage fuse box is connected with the spring mechanism via a interlocking mechanism II. When the vacuum arc extinguishing chamber is power on, the isolating switch is locked; while the vacuum arc extinguishing chamber is power off, the isolating switch is unlocked. The utility model has the advantages of convenient operation and use, equipment cost saving, and improvement of product service life and working efficiency.
Description
Technical field
The utility model relates to a kind of vacuum load switch-fuse combined electric apparatus.
Background technology
Existing indoor high-voltage vacuum switch-fuse combination product is in the layout of overall structure, element and select for use, aspect such as properties of product all exists more defective and deficiency, mainly show as: 1, arc control device directly are connected with high-pressure system, there is not visible isolation fracture, when maintenance or replacing arc control device, must whole high-pressure system all have a power failure, thereby influenced the operate as normal in other loop.2, vacuum interrupter and isolating switch interlock when console switch, is very easy to produce the arcing phenomenon between contact, very easily contact is burnt out, cisco unity malfunction, and cause reduce greatly the useful life of product, bring higher equipment investment and maintenance cost to the owner.3, arc control device are as independent component, and its withstand voltage ability to bear does not meet national standard.4, existing product manual operation is closed a floodgate, and causes effort and combined floodgate merit to be difficult for guaranteeing, and can not satisfy the needs of automation control.
Summary of the invention
Be the interlock of maintenance, vacuum interrupter and the isolating switch of the vacuum interrupter that solves above existence, the problems such as withstand voltage ability to bear of vacuum interrupter, the utility model provides a kind of indoor high-voltage vacuum switch-fuse combination, and its technical scheme of taking is:
This combined electrical apparatus comprises installing rack and is fixed on isolating switch on the installing rack by insulator respectively, vacuum interrupter and high-tension fuse, isolating switch is located at the top of vacuum interrupter, high-tension fuse is located at the vacuum interrupter below, being fixed on the pass that spring mechanism on the installing rack connects vacuum interrupter by linkage and control vacuum interrupter closes and disjunction, high-tension fuse is connected by interlocking gear I with spring mechanism, when ejecting, the high-tension fuse striker makes the spring mechanism separating brake and the locking of closing a floodgate, isolating switch is connected by interlocking gear II with vacuum interrupter, when the vacuum arc control device close fashionable isolating switch locking, isolating switch release when the disjunction of vacuum arc control device.
The bottom of installing rack is fixed with earthed switch, and isolating switch is connected by interlocking gear III with earthed switch, and when isolating switch closes fashionable earthed switch disjunction, earthed switch closes and closes when the isolating switch disjunction.
Vacuum interrupter is enclosed in the insulating cylinder admittedly by liquid silastic.
Because isolating switch is positioned at the top of vacuum interrupter, be that the arc control device front end has been installed visible isolation fracture, when arc control device go wrong, as long as open isolating switch, just can relieved safely safeguarding and overhauling, and also can work normally in other loop, therefore improved owner's operating efficiency, made things convenient for to safeguard and maintenance.Be the priority action relationships between arc control device and the isolating switch, reliable mechanical chain is housed between the two, both prevented the generation of misoperation, improved the mechanical endurance of complete machine again,, reduced equipment maintenance cost again for the owner provides safety and convenient when operating.Adopt liquid silastic to be enclosed in arc control device in the insulating cylinder admittedly, make arc control device and insulating cylinder become unified integral body, the external insulation of arc control device has just become the external insulation of insulation like this, thereby improved the withstand voltage level of arc control device, reach 95kV/1min, satisfy national standard, make product more reliable when operation.Special-purpose spring operating mechanism has been installed, and the combined floodgate merit guarantees by energy-stored spring, not only can electronic but also manually energy storage, and laborsaving convenient, can also realize automation control.
Therefore the utility model is all deposited at aspects such as security of products, operability and is significantly improved, and has easy for operationly, saves equipment cost, improves the useful life of product and the characteristics of operating efficiency.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the right view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
As depicted in figs. 1 and 2, isolating switch 3, vacuum interrupter 4 and high-tension fuse 5 are fixed on the installing rack 1 by insulator 2 respectively, isolating switch 3 is positioned at the top of vacuum interrupter 4, and high-tension fuse 5 is positioned at vacuum interrupter 4 belows, and spring mechanism 7 is fixed on the side of installing rack 1.
Close and disjunction the pass that spring mechanism 7 connects vacuum interrupter 4 by linkage and controls vacuum interrupter 4.When needs vacuum interrupter 4 is closed fashionable, after the switching-in spring energy storage of spring mechanism 7, press the power supply of closing by hand button or connection closing coil, the switching-in spring rapid release energy of spring mechanism 7, drive cam rotation, drive vacuum interrupter power transmission shaft 18 by connecting lever and connecting rod again and rotate, the moved end that drives vacuum interrupter 4 by insulating bar 19 moves upward, and vacuum interrupter 4 is closed close; When needs carry out disjunction to vacuum interrupter 4, because the "on" position of spring mechanism is kept by buckle and semiaxis, buckle is under the effect of vacuum interrupter 4 load force, therefore the trend of the oriented direction motion of triping if press the power supply of manual brake separating button or connection switching winding, then drive the separating brake semiaxis and turn to the dropout position, buckle will move rapidly, the balance of linkage is disengaged, and moves to the separating brake position under the effect of vacuum extinction load force, thereby finishes the disjunction action.
Isolating switch 3 is connected by interlocking gear II with vacuum interrupter 4, when vacuum arc control device 4 close fashionable isolating switch 3 lockings, can not operate, and isolating switch 3 releases just can be operated when 4 disjunctions of vacuum arc control device.Isolating switch 3 is connected by interlocking gear III with earthed switch 6 simultaneously, and when isolating switch 3 fashionable earthed switch 6 disjunctions in pass, earthed switch 6 closes and closes when isolating switch 3 disjunctions.Under vacuum interrupter 4 disjunction states, clockwise rotate operating axis 11 about 90 ° with operating handle, drive isolating switch rotating shafts 15 and rotate by connecting rod 12, connecting lever 14, make isolating switch 3 disjunctions by insulating bar 13 again; Isolating switch rotating shaft 15 drivening rods 16 and ground connection rotating shaft 17 simultaneously closed earthed switch and closed.In like manner under vacuum interrupter 4 disjunction states, when rotating counterclockwise operating axis 11, isolating switch 3 closes and closes earthed switch 6 disjunctions.
High-tension fuse 5 is connected by interlocking gear I with spring mechanism 7, makes spring mechanism 7 separating brakes and the locking of closing a floodgate when high-tension fuse 5 strikers eject.This moment is as one mutually or after 5 fusing of heterogeneous high-tension fuse, its fuse striker ejects, and makes spring mechanism 7 separating brakes by connecting lever connecting rod etc., makes vacuum interrupter 4 disjunctions; Only its spring mechanism 7 just can carry out closing operation after changing fuse again.Therefore guarantee not phase-deficient operation of combined electrical apparatus.
Operation has a power failure: manually or electric operating mechanism it is threaded off, separate fast at the fracture of the following vacuum interrupter 4 of effect of contact pressure, thereby cut off normal load or fault current, play and control and protective effect.Because 4 of isolating switch 3 and vacuum interrupters are made up of the interlocking gear II that is mutually related, the fracture that has only vacuum interrupter 4 separately after, just can open isolation fracture, again because the interlock effect of isolating switch 3 and earthed switch 6, earthed switch closes and closes simultaneously, play the discharge and the effect of hanging earthing conductor, can split the pass this moment and overhaul and safeguard.
Send electricity operation: after maintenance or debugging finish, with the specific purpose tool isolating switch 3 that closes, this moment vacuum interrupter 4 fracture must be disconnect (if close the state that closes, can't disconnecting switch operation, must divide the fracture of vacuum interrupter 4 earlier, disconnecting switch operation 3 again).Under the interlock of isolating switch 3, earthed switch 6 disconnects simultaneously.Use manual or electric operating mechanism then, the fracture of the vacuum interrupter 4 that closes is finished and is sent the electricity operation.
Vacuum interrupter 4 can adopt the solid encapsulation technique of liquid silastic, admittedly be enclosed in the insulating cylinder by liquid silastic, make arc control device and insulating cylinder become unified integral body, the external insulation of arc control device has just become the external insulation of insulating cylinder like this, thereby improved the withstand voltage level of arc control device, reach 95kV/1min, satisfy national standard, make product more reliable when operation.
The utility model is applicable to rated voltage 40.5kV, in the supply network of three-phase alternating current 50Hz, can be used as wind power generation, European case change special product.
Claims (3)
1. indoor high-voltage vacuum on-load switch-fuse combined electric apparatus, comprise installing rack (1) and be fixed on isolating switch (3) on the installing rack (1) by insulator (2) respectively, vacuum interrupter (4) and high-tension fuse (5), it is characterized in that, isolating switch (3) is located at the top of vacuum interrupter (4), high-tension fuse (5) is located at vacuum interrupter (4) below, being fixed on the pass that spring mechanism (7) on the installing rack (1) connects vacuum interrupter (4) by linkage and control vacuum interrupter (4) closes and disjunction, high-tension fuse (5) is connected by interlocking gear I with spring mechanism (7), when high-tension fuse (5) makes spring mechanism (7) separating brake and the locking of closing a floodgate when striker ejects, isolating switch (3) is connected by interlocking gear II with vacuum interrupter (4), when vacuum arc control device (4) close fashionable isolating switch (3) locking, isolating switch (3) release when vacuum arc control device (4) disjunction.
2. indoor high-voltage vacuum on-load switch-fuse combined electric apparatus according to claim 1, it is characterized in that, the bottom of installing rack (1) is fixed with earthed switch (6), isolating switch (3) is connected by interlocking gear III with earthed switch (6), when isolating switch (3) closes fashionable earthed switch (6) disjunction, earthed switch (6) closes and closes when isolating switch (3) disjunction.
3. indoor high-voltage vacuum on-load switch-fuse combined electric apparatus according to claim 1 and 2 is characterized in that, vacuum interrupter (4) is enclosed in the insulating cylinder admittedly by liquid silastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200245574U CN201060788Y (en) | 2007-06-26 | 2007-06-26 | Indoor high-tension vacuum load switch-fuse combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200245574U CN201060788Y (en) | 2007-06-26 | 2007-06-26 | Indoor high-tension vacuum load switch-fuse combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060788Y true CN201060788Y (en) | 2008-05-14 |
Family
ID=39409277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200245574U Expired - Fee Related CN201060788Y (en) | 2007-06-26 | 2007-06-26 | Indoor high-tension vacuum load switch-fuse combined electrical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201060788Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969192A (en) * | 2012-11-07 | 2013-03-13 | 博耳(无锡)电力成套有限公司 | Medium-pressure vacuum loading device |
| CN103219193A (en) * | 2013-03-27 | 2013-07-24 | 苏州长量电器有限公司 | High-voltage load switch |
| CN103227073A (en) * | 2013-04-09 | 2013-07-31 | 苏州长量电器有限公司 | Self-energy-storage high-voltage load switch |
| CN104319164A (en) * | 2014-11-05 | 2015-01-28 | 湖州电力设备成套有限公司 | Vacuum load switch |
| CN106486318A (en) * | 2016-12-07 | 2017-03-08 | 国网宁夏电力公司吴忠供电公司 | A kind of vacuum load switch |
| CN106920711A (en) * | 2015-12-28 | 2017-07-04 | 国家电网公司 | High voltage load switch-Combined switch of circuit breaker |
-
2007
- 2007-06-26 CN CNU2007200245574U patent/CN201060788Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969192A (en) * | 2012-11-07 | 2013-03-13 | 博耳(无锡)电力成套有限公司 | Medium-pressure vacuum loading device |
| CN102969192B (en) * | 2012-11-07 | 2015-02-11 | 博耳(无锡)电力成套有限公司 | Medium-pressure vacuum loading device |
| CN103219193A (en) * | 2013-03-27 | 2013-07-24 | 苏州长量电器有限公司 | High-voltage load switch |
| CN103227073A (en) * | 2013-04-09 | 2013-07-31 | 苏州长量电器有限公司 | Self-energy-storage high-voltage load switch |
| CN104319164A (en) * | 2014-11-05 | 2015-01-28 | 湖州电力设备成套有限公司 | Vacuum load switch |
| CN104319164B (en) * | 2014-11-05 | 2016-07-13 | 湖州电力设备成套有限公司 | A kind of vacuum load switch |
| CN106920711A (en) * | 2015-12-28 | 2017-07-04 | 国家电网公司 | High voltage load switch-Combined switch of circuit breaker |
| CN106486318A (en) * | 2016-12-07 | 2017-03-08 | 国网宁夏电力公司吴忠供电公司 | A kind of vacuum load switch |
| CN106486318B (en) * | 2016-12-07 | 2018-11-23 | 国网宁夏电力公司吴忠供电公司 | A kind of vacuum load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20120626 |