CN202434410U - Tank-type high pressure vacuum circuit breaker - Google Patents
Tank-type high pressure vacuum circuit breaker Download PDFInfo
- Publication number
- CN202434410U CN202434410U CN2011204100072U CN201120410007U CN202434410U CN 202434410 U CN202434410 U CN 202434410U CN 2011204100072 U CN2011204100072 U CN 2011204100072U CN 201120410007 U CN201120410007 U CN 201120410007U CN 202434410 U CN202434410 U CN 202434410U
- Authority
- CN
- China
- Prior art keywords
- insulating cylinder
- high pressure
- pressure
- bucking electrode
- gas compartment
- 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.)
- Withdrawn - After Issue
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Provided is a tank-type high pressure vacuum circuit breaker which helps to overcome problems of the prior art that the structure of a silicone rubber insulator fixedly sealed with an arc extinguish chamber is complicated in processing, the arc extinguish chamber can not be separately replaced, and the vacuum arc extinguish chamber has to bear high pressure because the chamber is directly arranged in high pressure insulation gas. The tank-type high pressure vacuum circuit breaker is characterized in that a cavity between a vacuum arc extinguish chamber and a large insulating cylinder is communicated with a cavity between a small insulating cylinder and an operation insulating rod to form a sealed low pressure gas compartment; a cavity between the large insulating cylinder and the small insulating cylinder, and a tank body forms a sealed high pressure gas compartment; 0 to 0.1MPa dry air or nitrogen is filled into the low pressure gas compartment; and 0.15 to 0.6MPa dry air or nitrogen is filled into the high pressure gas compartment. The beneficial effects are that the vacuum arc extinguish chamber runs in the low pressure gas compartment, thereby effectively protecting the vacuum arc extinguish chamber; the high pressure gas compartment helps to guarantee the insulating properties of the breaker; and the vacuum arc extinguish chamber simply needs to be replaced individually if breaking down.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, and particularly high-voltage system is with a kind of pot type high-pressure vacuum breaker of dry air or nitrogen insulation.
Background technology
Existing primary cut-out product adopts sulphur hexafluoride to cut-off medium as electric insulation and circuit more, and a large amount of uses of sulphur hexafluoride can produce pollution to environment.For these reasons, adopt the circuit that cut-offs of the vacuum technology of cut-offfing to obtain enforcement in the high voltage field gradually.In the prior art, be the disclosed a kind of outdoor high-voltage vacuum breaker of 03133431.8 patent application like application number, it does not use sulfur hexafluoride gas to do insulation gas; But the technical scheme that it is taked is to charge into a kind of fluid silicone rubber dielectric in the arc control device outside, and the cooling back forms solid-state silicon rubber insulation body; This silicon rubber insulation body is enclosed in arc control device admittedly; Complex manufacturing technology especially when arc control device break down, can't be changed arc control device separately.And for example; A kind of high-pressure vacuum breaker that Nippon AE Pava Co., Ltd. produces, it does not use sulfur hexafluoride gas to do insulation gas yet, still; The technical scheme that it is taked is that vacuum interrupter is directly installed in the insulating gas of high pressure; Vacuum interrupter directly is in the high-pressure gas, so the vacuum interrupter pressure-bearing is very high, has so just increased the manufacture difficulty of vacuum interrupter.
Summary of the invention
The utility model technical problem to be solved is, overcomes the weak point of prior art, and a kind of pot type high-pressure vacuum breaker with dry air or nitrogen insulation is provided.
The technical solution that the utility model adopted comprises vacuum interrupter, tank body and pressure relief device; At the outdoor big insulating cylinder made from epoxy resin that is equipped with of vacuum extinction; Said big insulating cylinder right ends is separately installed with left bucking electrode and right bucking electrode; The left end of left side bucking electrode is installed little insulating cylinder; Cavity between vacuum interrupter and the big insulating cylinder and little insulating cylinder are connected with cavity between the operation insulating bar and form the low-pressure gas compartment that seals; Outside big insulating cylinder and little insulating cylinder, tank body is installed, the cavity between big insulating cylinder and little insulating cylinder and the tank body forms the gases at high pressure compartment of sealing, is connected with left connection bus and right connection bus respectively at left bucking electrode and right bucking electrode outer upper end.
Said left bucking electrode and right bucking electrode are rotational symmetry structure.
In the low-pressure gas compartment, charge into dry air or nitrogen that gauge pressure is 0～0.1MPa, in the gases at high pressure compartment, charge into dry air or nitrogen that gauge pressure is 0.15～0.6MPa.
During use; Said vacuum interrupter is the three-phase absolute construction, and every phase all is installed in the low-pressure gas compartment, this low-pressure gas compartment is packed in the tank body again; Tank body is rack-mount; One side attended operation mechanism, the top of every phase arc control device is connected the top leading-out wire sleeve pipe of each current transformer through connection bus with the pair of electrical current transformer.
Compared with prior art, the beneficial effect of the utility model is:
(1) the utility model is installed in vacuum interrupter and operation insulating bar in the low pressure gas compartment of sealing; Vacuum interrupter is operated in the gas of dry air that gauge pressure is 0～0.1MPa or the such low-pressure of nitrogen; Thereby vacuum interrupter and bellows have been protected effectively; And the gauge pressure that charges in the high-pressure gas compartment is the dry air of 0.15～0.6MPa or the insulation property that the nitrogen hyperbar has guaranteed circuit breaker; So just need not re-use sulfur hexafluoride gas does insulation gas, has also reduced the manufacture difficulty of vacuum interrupter simultaneously, if vacuum interrupter breaks down; Only need to change separately vacuum interrupter and get final product, whole high-pressure vacuum breaker then can normally use.
(2) the utility model left side bucking electrode and right bucking electrode are rotational symmetry structure, can play the effect of uniform electric field and heat radiation.
Description of drawings
Fig. 1 is the structural representation of the utility model,
Fig. 2 is the A-A cutaway view of Fig. 1,
Fig. 3 is the user mode scheme of installation of the utility model.
Among the figure:
1. operation insulating bar, 2. tank body,
3. left bucking electrode, 4. big insulating cylinder,
5. vacuum interrupter, 6. right bucking electrode,
7. post insulator, 8. pressure relief device,
9-1. left connection bus, the right connection bus of 9-2.,
10. gases at high pressure compartment, 11. low-pressure gas compartments,
12-1. left outlet sleeve pipe, the right outlet sleeve pipe of 12-2.,
13-1. left current transformer, the right current transformer of 13-2.,
14. operating mechanism, 15. supports,
16. little insulating cylinder.
Embodiment
The embodiment of the utility model is provided below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2; The utility model comprises vacuum interrupter 5; The big insulating cylinder made from epoxy resin 4 is housed outside vacuum interrupter 5; Said big insulating cylinder 4 right ends are separately installed with left bucking electrode 3 and right bucking electrode 6, and the left end of left bucking electrode 3 is installed little insulating cylinder 16, cavity between vacuum interrupter 5 and the big insulating cylinder 4 and the little insulating cylinder 16 low-pressure gas compartment 11 that formation seals that is connected with cavity between the operation insulating bar 1; Tank body 2 is installed outside big insulating cylinder 4 and little insulating cylinder 16; Cavity between big insulating cylinder 4 and little insulating cylinder 16 and the tank body 2 forms the gases at high pressure compartment 10 of sealing, and vacuum interrupter 5 left end attended operation insulating bars 1, right-hand member are fixed in the pillar insulation 7; Be connected with left connection bus 9-1 and right connection bus 9-2 at left bucking electrode 3 respectively with right bucking electrode 6 outer upper end; On tank body 2 right sides pressure relief device 8 is installed, in low-pressure gas compartment 11, is charged into dry air or nitrogen that gauge pressure is 0～0.1MPa, in gases at high pressure compartment 10, charge into dry air or nitrogen that gauge pressure is 0.15～0.6MPa.
As shown in Figure 3, during use, the utility model is installed on the support 15 through tank body 2, and the left end of tank body 2 is connected with operating mechanism 14 through operation insulating bar 1
,Left current transformer 13-1 and right current transformer 13-2 are installed in the top of tank body 2; The upper end of left side current transformer 13-1 is connected with left outlet sleeve pipe 12-1, and the upper end of right current transformer 13-2 is connected with right outlet sleeve pipe 12-2, during breaker closing; The moving contact that operating mechanism 14 drives vacuum interrupter 5 moves right; The dynamic/static contact contact realizes closing a floodgate, and electric current is flowed into by left outlet sleeve pipe 12-1, flow to left bucking electrode 3 through left connection bus 9-1; Flow to right bucking electrode 6 through vacuum interrupter 5 again, flow to right outlet sleeve pipe 12-2 through right connection bus 9-2; During separating brake, the moving contact that operating mechanism 14 drives vacuum interrupter 5 is to left movement, and the dynamic/static contact contact separation realizes separating brake.
In actual the use, said vacuum interrupter 5 is the three-phase absolute construction, and every phase all is installed in the tank body 2 of an accumbency.
Claims (3)
1. pot type high-pressure vacuum breaker; Comprise vacuum interrupter (5), tank body (2) and pressure relief device (8); It is characterized in that; The big insulating cylinder made from epoxy resin (4) is housed outside vacuum interrupter (5); Said big insulating cylinder (4) right ends is separately installed with left bucking electrode (3) and right bucking electrode (6); The left end of left side bucking electrode (3) is installed little insulating cylinder (16), and cavity between vacuum interrupter (5) and the big insulating cylinder (4) and little insulating cylinder (16) are connected with cavity between the operation insulating bar (1) and form the low-pressure gas compartment (11) of sealing, installation tank body (2) outside big insulating cylinder (4) and outside the little insulating cylinder (16); Cavity between big insulating cylinder (4) and little insulating cylinder (16) and the tank body (2) forms the gases at high pressure compartment (10) of sealing, is connected with left connection bus (9-1) and right connection bus (9-2) respectively at left bucking electrode (3) and right bucking electrode (6) outer upper end.
2. according to the said a kind of pot type high-pressure vacuum breaker of claim 1, it is characterized in that said left bucking electrode (3) and right bucking electrode (6) are rotational symmetry structure.
3. according to the said a kind of pot type high-pressure vacuum breaker of claim 1; It is characterized in that; In low-pressure gas compartment (11), charge into dry air or nitrogen that gauge pressure is 0～0.1MPa, in gases at high pressure compartment (10), charge into dry air or nitrogen that gauge pressure is 0.15～0.6MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204100072U CN202434410U (en) | 2011-10-25 | 2011-10-25 | Tank-type high pressure vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204100072U CN202434410U (en) | 2011-10-25 | 2011-10-25 | Tank-type high pressure vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202434410U true CN202434410U (en) | 2012-09-12 |
Family
ID=46783837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204100072U Withdrawn - After Issue CN202434410U (en) | 2011-10-25 | 2011-10-25 | Tank-type high pressure vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202434410U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360987A (en) * | 2011-10-25 | 2012-02-22 | 沈阳华德海泰电器有限公司 | Tank type high-pressure vacuum circuit breaker |
-
2011
- 2011-10-25 CN CN2011204100072U patent/CN202434410U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360987A (en) * | 2011-10-25 | 2012-02-22 | 沈阳华德海泰电器有限公司 | Tank type high-pressure vacuum circuit breaker |
| CN102360987B (en) * | 2011-10-25 | 2014-03-26 | 沈阳华德海泰电器有限公司 | Tank type high-pressure vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120912 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20120912 Effective date of abandoning: 20140326 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |