CN202696040U - Solid insulating vacuum ring main unit - Google Patents
Solid insulating vacuum ring main unit Download PDFInfo
- Publication number
- CN202696040U CN202696040U CN 201220287232 CN201220287232U CN202696040U CN 202696040 U CN202696040 U CN 202696040U CN 201220287232 CN201220287232 CN 201220287232 CN 201220287232 U CN201220287232 U CN 201220287232U CN 202696040 U CN202696040 U CN 202696040U
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- CN
- China
- Prior art keywords
- vacuum
- operating mechanism
- switch
- contact
- isolating switch
- Prior art date
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- Expired - Lifetime
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model relates to a solid insulating vacuum ring main unit which comprises a vacuum switch, an isolating switch, at least three insulating seats and a sleeve, wherein the vacuum switch comprises a vacuum arc extinguish chamber, a vacuum switch operating mechanism and an insulating drawbar, the isolating switch comprises a static contact, a contact knife, an isolating drawbar, a grounding contact and an isolating switch operating mechanism, the moving end of the vacuum switch is connected with the static contact by a flexible connecting rib, the isolating switch operating mechanism is interlocked with the vacuum switch operating mechanism, the contact knife corresponds to the static contact and the grounding contact respectively, each insulating seat forms a single-phase electric loop, every three insulating seats form a tri-phase electric element, live working parts of the corresponding isolating switch and the vacuum switch are isolated by the insulating seats, the insulating grade is raised, and an observation hole is formed at the upper part of each insulating seat, so that action and grounding conditions of the contact knife of the isolating switch are convenient to observe.
Description
Technical field
The utility model relates to a kind of ring main unit, especially a kind of solid isolated vacuum ring main unit.
Background technology
In the prior art, the gas-insulated ring network cabinet is arranged, because gas SF6 has toxicity behind arc extinguishing, and easily leaks, higher to sealing requirements, complex process, and electrified body is exposed, is subjected to the erosion of air, dust, easily causes the corrosion of electrified body, reduce the class of insulation, easily cause human casualty accident.
The utility model content
The utility model will solve the problems of the technologies described above and provide a kind of solid isolated vacuum net cabinet that better insulation effect is arranged.
The utility model is that the technical scheme that solves the problems of the technologies described above is as follows: a kind of solid isolated vacuum ring main unit, comprise vacuum switch, isolating switch, insulating base, sleeve pipe, vacuum switch comprises vacuum interrupter, vacuum switch operating mechanism and insulated tension pole, vacuum switch operating mechanism and insulated tension pole interlock, the insulated tension pole lower end is connected with the moved end of vacuum interrupter; Isolating switch comprises fixed contact, contact knife, isolation pull bar, grounding contact, isolator operating mechanism, isolation pull bar upper end links to each other with isolator operating mechanism, isolation pull bar lower end is connected with the contact knife middle part, contact knife one end and sleeve pipe are hinged, the other end is corresponding with grounding contact with fixed contact respectively, when contact knife rotates around pin joint, can connect respectively fixed contact or grounding contact, isolator operating mechanism is interlocked mutually with the vacuum switch operating mechanism, namely only have behind vacuum switch separating brake, freely disconnecting switch operation; Vacuum switch is connected with isolating switch, and the moved end of vacuum switch is connected with the fixed contact of isolating switch by being flexible coupling; Insulating base is isolated with vacuum switch and isolating switch, insulating base is provided with at least three, every insulating base forms a single-phase electricity air circuit, per three insulating bases form a three-phase electricity air circuit unit, a phase in the corresponding three phase mains of each insulating base difference in three insulating bases that are set up in parallel, the isolating switch that insulating base is corresponding with each and the charged workpiece of vacuum switch are isolated, improve the class of insulation, the top of insulating base is provided with inspection hole, can observe easily contact knife action situation and the Grounding of isolating switch.
Description of drawings
Fig. 1 is the structural representation of the utility model solid isolated vacuum ring main unit;
Fig. 2 is the left view of the utility model solid isolated vacuum ring main unit.
In the accompanying drawing, the list of parts of each label representative is as follows:
1, vacuum interrupter, 2, the muscle that is flexible coupling, 3, fixed contact, 4, insulated tension pole, 5, isolation pull bar 6, sleeve pipe, 7, the vacuum switch operating mechanism, 8, isolator operating mechanism, 9, contact knife, 10, grounding contact, 11, insulating base, 12, inspection hole, 13, the moved end of vacuum switch.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
Fig. 1 is the structural representation of the utility model solid insulation ring vacuum ring main unit, and Fig. 2 is the left view of the utility model solid insulation ring vacuum ring main unit.As shown in Figure 2, a kind of solid isolated vacuum ring main unit of solid isolated vacuum ring main unit, comprise vacuum switch, isolating switch, insulating base, sleeve pipe, vacuum switch comprises vacuum interrupter 1, vacuum switch operating mechanism 7 and insulated tension pole 4, vacuum switch operating mechanism 7 and insulated tension pole 4 interlocks, insulated tension pole 4 lower ends are connected with the moved end of vacuum interrupter 1; Isolating switch comprises fixed contact 3, contact knife 9, isolation pull bar 5, grounding contact 10, isolator operating mechanism 8, isolation pull bar 5 upper ends link to each other with isolator operating mechanism 8, isolation pull bar 5 lower ends are connected with contact knife 9 middle parts, contact knife 9 one ends and sleeve pipe 6 are hinged, the other end is corresponding with grounding contact 10 with fixed contact 3 respectively, when contact knife 9 rotates around pin joint, can connect respectively fixed contact 3 or grounding contact 10, isolator operating mechanism 8 is mutually chain with vacuum switch operating mechanism 7; The moved end 13 of vacuum switch is connected through the fixed contact 3 of be flexible coupling muscle 2 and isolating switch; Insulating base 11 is provided with at least three, and every insulating base 11 forms a single-phase electricity air circuit, and per three insulating bases 11 form a three-phase electricity air circuit unit, and insulating base 11 is set up in parallel three, the three-phase of corresponding power.Behind vacuum switch separating brake, just can disconnecting switch operation, when isolating switch during at closing position, vacuum switch closes, major loop is connected, this moment is because isolator operating mechanism 8 vacuum switch operating mechanisms 7 interlockings, isolating switch can not be opened, only have behind vacuum switch separating brake, isolating switch just can be opened, and after isolating switch was opened, the contact knife 9 of isolating switch was connected with the grounding contact of isolating switch 10, this moment the vacuum switch that can close, this moment, major loop was grounded through vacuum switch, fixed contact 3, contact knife 9, grounding contact 10.The top of insulating base 11 is provided with inspection hole 12, can observe easily contact knife 9 action situation and Groundings; The charged workpiece of insulating base 11 isolating switch that each is corresponding and vacuum switch is isolated in whole process, improves the class of insulation.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. solid isolated vacuum ring main unit, it is characterized in that: comprise vacuum switch, isolating switch, insulating base, sleeve pipe, described vacuum switch comprises vacuum interrupter, vacuum switch operating mechanism and insulated tension pole, described vacuum switch operating mechanism and the interlock of described insulated tension pole, described insulated tension pole lower end is connected with the moved end of described vacuum interrupter, described isolating switch comprises fixed contact, contact knife, the isolation pull bar, grounding contact, isolator operating mechanism, described isolation pull bar upper end links to each other with described isolator operating mechanism, described isolation pull bar lower end links to each other with described contact knife middle part, one end and the described sleeve pipe of described contact knife are hinged
The moved end of described vacuum switch is connected with the fixed contact of isolating switch;
Described isolator operating mechanism is interlocked mutually with described vacuum switch operating mechanism;
The contact knife of described isolating switch can be connected respectively described fixed contact or described grounding contact when pin joint rotates;
Described insulating base is isolated with described vacuum switch and described isolating switch.
2. solid isolated vacuum ring main unit according to claim 1, it is characterized in that: described insulating base is at least three, and every insulating base forms a single-phase electricity air circuit, and per three insulating bases form a three-phase electric unit.
3. solid isolated vacuum ring main unit according to claim 1 and 2, it is characterized in that: the top of described insulating base is provided with inspection hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287232 CN202696040U (en) | 2012-06-18 | 2012-06-18 | Solid insulating vacuum ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287232 CN202696040U (en) | 2012-06-18 | 2012-06-18 | Solid insulating vacuum ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202696040U true CN202696040U (en) | 2013-01-23 |
Family
ID=47551603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287232 Expired - Lifetime CN202696040U (en) | 2012-06-18 | 2012-06-18 | Solid insulating vacuum ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202696040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368096A (en) * | 2013-06-26 | 2013-10-23 | 国家电网公司 | Solid insulation ring main unit |
-
2012
- 2012-06-18 CN CN 201220287232 patent/CN202696040U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368096A (en) * | 2013-06-26 | 2013-10-23 | 国家电网公司 | Solid insulation ring main unit |
| CN103368096B (en) * | 2013-06-26 | 2016-02-17 | 国家电网公司 | Solid insulation ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |