CN203760368U - All-insulated solid-encapsulated vacuum circuit breaker - Google Patents
All-insulated solid-encapsulated vacuum circuit breaker Download PDFInfo
- Publication number
- CN203760368U CN203760368U CN201420005957.0U CN201420005957U CN203760368U CN 203760368 U CN203760368 U CN 203760368U CN 201420005957 U CN201420005957 U CN 201420005957U CN 203760368 U CN203760368 U CN 203760368U
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- CN
- China
- Prior art keywords
- vacuum circuit
- insulation
- circuit breaker
- breaker
- insulating case
- 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 relates to a circuit breaker used in an indoor high-tension switchgear, and especially relates to an all-insulated solid-encapsulated vacuum circuit breaker. An insulating sleeve sleeves an upper wire, and is in pluggable connection and clearance fit with an upper wire outlet. An insulating lower wire includes a lower insulating sleeve and a lower wire, wherein the lower insulating sleeve sleeves the lower wire and is in pluggable connection with a lower wire outlet. According to the all-insulated solid-encapsulated vacuum circuit breaker, both the upper wire and the lower wire are solid-encapsulated in a pole by using the clearance fit between the upper insulating sleeve and the upper wire outlet and between the lower insulating sleeve and the lower wire outlet. Therefore, high-voltage live portions of the all-insulated solid-encapsulated vacuum circuit breaker are not exposed to the outside, the insulating property is substantially improved, and the size of an auxiliary high-tension switchgear is substantially reduced. The all-insulated solid-encapsulated vacuum circuit breaker is free of maintenance, and is little affected by the environment. Because all live parts are not exposed to the outside and the insulating property of the all-insulated solid-encapsulated vacuum circuit breaker is not influenced by the environment, the all-insulated solid-encapsulated vacuum circuit breaker is especially suitable for areas of high pollution level or high altitude, and the application scope and environment of the all-insulated solid-encapsulated vacuum circuit breaker are substantially expanded.
Description
Technical field
The utility model relates to a kind of circuit breaker for indoor high voltage switchgear, especially a kind of all insulation sealing vacuum circuit-breaker.
Background technology
Vacuum circuit-breaker, as most important switchgear in distribution system, is widely used in the electric power system of 40.5kV and following electric pressure, as the control and protection equipment of electric power system.Vacuum circuit-breaker is pressed insulation mode classification at present, mainly contains following three kinds:
Air insulation vacuum circuit-breaker
Air insulation vacuum circuit-breaker (typical products is ZN12-40.5, ZN28-12) is first generation vacuum circuit-breaker.Air is as the most reliable dielectric, and its excellent self-healing is that other insulating material institutes are irreplaceable.But air insulation also comes with some shortcomings.Be subject to the restriction of air insulation performance, small product size is large, causes switchgear to take construction area many; Because the charged position of product is exposed in air, product insulation property are affected by environment also larger in addition, and the higher and humid area at gradation for surface pollution needs often product external insulation to be safeguarded, not so easily causes insulation fault.
Composite insulating vacuum breaker
Composite insulating vacuum breaker (typical products is ZN85-40.5, VS1-12) is second generation vacuum circuit-breaker, is the vacuum circuit-breaker of current use amount maximum.Composite insulating vacuum breaker adopts air and epoxy resins insulation cylinder compound inslation, has both had air-insulated reliability, has improved again the environmental suitability of vacuum circuit-breaker, and corresponding product volume is also little compared with first generation air insulation vacuum circuit-breaker.Though composite insulating vacuum breaker has improved the environmental suitability of product, the charged position such as vacuum interrupter still relies on air insulation, and therefore the scope of application is still restricted.
Sealing vacuum circuit-breaker
Sealing vacuum circuit-breaker (typical products is VEP-40.5, VEP-12) is third generation vacuum circuit-breaker, on second generation composite insulating vacuum breaker basis, by vacuum interrupter entirety sealing in an insulating polar pole, thereby having solved the problem that the insulation property such as vacuum interrupter are affected by the external environment, small product size further reduces compared with composite insulating vacuum breaker.Sealing vacuum circuit-breaker has improved the conformability of vacuum circuit-breaker to environment greatly, substantially can meet the requirement of most domestic environment for use.But the upper and lower outlet of sealing vacuum circuit-breaker still adopts conventional composite insulation vacuum breaker mode, its charged position is still exposed in air, has limited further dwindling of small product size.Particularly 40.5kV high voltage switchgear, its huge volume all brings great risk to transport, carrying, the lifting of product.
In sum existing high voltage switchgear because breaker outgoing line still adopts traditional wire outlet seat pattern, its electrification in high voltage position is exposed in air, is to ensure product insulation property, it is too little that the volume of high voltage switchgear just can not do.
Utility model content
The purpose of this utility model is, provides that a kind of volume is little, good insulating, all insulation sealing vacuum circuit-breaker that applicability is wide.
The utility model solves the technical scheme that further technical problem adopts: a kind of all insulation sealing vacuum circuit-breaker, comprise pole, upper line outlet, lower line outlet, comprise insulation upper conductor, insulation lower wire, insulation upper conductor comprises insulating case, upper conductor, and upper insulating case is set on upper conductor, and upper insulating case and upper line outlet are pegged graft, and matched in clearance, insulation lower wire comprises lower insulating case, lower wire, and lower insulating case is set on lower wire, and lower insulating case and lower line outlet are pegged graft.
Of the present utility modelly further be set to: also comprise conducting block, lower conducting block, upper conducting block is fixedly installed in line outlet, upper conductor is through upper insulating case, be fixedly connected with upper conducting block, lower conducting block is fixedly installed in lower line outlet, lower wire, through lower insulating case, is fixedly connected with lower conducting block.
Of the present utility modelly further be set to: also comprise that vacuum interrupter, vacuum interrupter are arranged on pole top, upper conducting block is fixedly connected on vacuum interrupter.
Of the present utility modelly further be set to: insulation upper conductor, insulation lower wire are high voltage insulation cable.
Said structure utilizes the matched in clearance of upper and lower insulating case and upper and lower line outlet, by equal upper and lower wire sealing in pole, therefore the utility model product electrification in high voltage part does not all expose, insulation property can not only be improved greatly, also can significantly reduce the volume of supporting high voltage switchgear, above-mentioned structure can be non-maintaining, affected by environment little, because does not all expose at all charged positions, product insulation property are not affected by environment, be particularly suitable for the higher or high altitude localities of gradation for surface pollution, greatly opened up extensively the scope of application of the present utility model and environment.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the present embodiment;
Embodiment
Known with reference to figure 1, a kind of all insulation sealing of the utility model vacuum circuit-breaker, comprise pole 1, upper line outlet 2, lower line outlet 3, comprise insulation upper conductor, insulation lower wire, insulation upper conductor comprises insulating case 4, upper conductor 5, upper insulating case 4 is set on upper conductor 5, upper insulating case 4 is pegged graft with upper line outlet 2, and matched in clearance, insulation lower wire comprises lower insulating case 6, lower wire 7, lower insulating case 6 is set on lower wire 7, lower insulating case 6 is pegged graft with lower line outlet 3, upper conducting block 8 is fixedly installed in line outlet 2, upper conductor 5 is through upper insulating case 4, be fixedly connected with upper conducting block 8, lower conducting block 9 is fixedly installed in lower line outlet 3, lower wire 7 is through lower insulating case 6, be fixedly connected with lower conducting block 9, vacuum interrupter 10 is arranged on pole 1 top, upper conducting block 8 is fixedly connected on vacuum interrupter 10.
In the present embodiment, upper insulating case 4 and lower insulating case 6 form respectively the space of a sealing with upper line outlet 2, the direct moulding by casting of lower line outlet 3.
In the present embodiment, insulate upper conductor, insulation lower wire be high voltage insulation cable.
Obviously, above-described embodiment is only used to done giving an example is clearly described, and the not restriction to execution mode.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And the apparent variation of being extended out thus or variation are still in protection range of the present utility model.
Claims (4)
1. an all insulation sealing vacuum circuit-breaker, comprise pole, upper line outlet, lower line outlet, it is characterized in that: comprise insulation upper conductor, insulation lower wire, insulation upper conductor comprises insulating case, upper conductor, and upper insulating case is set on upper conductor, and upper insulating case and upper line outlet are pegged graft, and matched in clearance, insulation lower wire comprises lower insulating case, lower wire, and lower insulating case is set on lower wire, and lower insulating case and lower line outlet are pegged graft.
2. according to all insulation sealing vacuum circuit-breaker claimed in claim 1, it is characterized in that: also comprise conducting block, lower conducting block, upper conducting block is fixedly installed in line outlet, upper conductor is through upper insulating case, be fixedly connected with upper conducting block, lower conducting block is fixedly installed in lower line outlet, and lower wire, through lower insulating case, is fixedly connected with lower conducting block.
3. according to all insulation sealing vacuum circuit-breaker claimed in claim 2, it is characterized in that: also comprise that vacuum interrupter, vacuum interrupter are arranged on pole top, upper conducting block is fixedly connected on vacuum interrupter.
4. according to all insulation sealing vacuum circuit-breaker described in claim 1 or 2 or 3, it is characterized in that: insulation upper conductor, insulation lower wire are high voltage insulation cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005957.0U CN203760368U (en) | 2014-01-02 | 2014-01-02 | All-insulated solid-encapsulated vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420005957.0U CN203760368U (en) | 2014-01-02 | 2014-01-02 | All-insulated solid-encapsulated vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760368U true CN203760368U (en) | 2014-08-06 |
Family
ID=51255613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420005957.0U Expired - Fee Related CN203760368U (en) | 2014-01-02 | 2014-01-02 | All-insulated solid-encapsulated vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203760368U (en) |
-
2014
- 2014-01-02 CN CN201420005957.0U patent/CN203760368U/en not_active Expired - Fee Related
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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: 20140806 Termination date: 20160102 |
|
| EXPY | Termination of patent right or utility model |