CN201331981Y - Insulation column with current transformer - Google Patents
Insulation column with current transformer Download PDFInfo
- Publication number
- CN201331981Y CN201331981Y CNU2008202340224U CN200820234022U CN201331981Y CN 201331981 Y CN201331981 Y CN 201331981Y CN U2008202340224 U CNU2008202340224 U CN U2008202340224U CN 200820234022 U CN200820234022 U CN 200820234022U CN 201331981 Y CN201331981 Y CN 201331981Y
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- CN
- China
- Prior art keywords
- current transformer
- insulation column
- column
- full skirt
- insulation
- 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 an insulation column with a current transformer, wherein the insulation column is a hollow cylinder; the top of the insulation column is provided with a wire inlet connecting port; the external side wall of the insulation column is provided with a wire outlet terminal fixed column which is internally provided with the current transformer. The utility model arranges the current transformer in the wire outlet terminal fixed column and the central line of the current transformer iron core is direct cross to the axis line of the insulation column, and therefore increasing the section of the iron core, improving the capability of the current transformer in the insulation column, thereby overcoming the defect that the known internal current transformer has small capability. The structure of the insulation column only needs to add the section of the wire outlet terminal fixed column so as to lead the capability of the internal current transformer to be almost the same with the current transformer; as the diameter of the column of the insulation column is not needed, the object of improving the capability of the current transformer can be achieved without increasing the whole dimension of the circuit breaker.
Description
Technical field
The utility model is about a kind of insulation column, especially a kind of insulation column with current transformer.
Background technology
Vacuum circuit-breaker is a switchgear commonly used in the electrical network, and present known structure mainly contains following several form:
1, known three-phase column vacuum circuit-breaker, its structural shape is that the vacuum circuit-breaker of ZW32-12 is an example with the model, air insulation, divide, close a floodgate based on spring mechanism, semitight is in casing, and the three phase isolated sleeve pipe is selected outdoor epoxide resin material for use, with APG (pressure gel) explained hereafter.Described insulating sleeve is split type, is made of two parts up and down, and vacuum interrupter and main conductive circuit are installed in top, and vacuum extinction formula and last sleeve pipe adopt the problem of the technology solution external insulation of mucilage binding.This structure adopts external current transformer, and a side is provided with isolating switch.Represented to be used for the insulating sleeve of this structure among Figure 1A, Figure 1B, constituted by last insulating sleeve 31 and following insulating sleeve 32.Because be to adopt external current transformer, this vacuum circuit-breaker device structure is bigger, and the galvanic circle tie point is more, heating in service is serious, easily breaks down, and reliable in action is poor.
2, another kind of known common box type air insulation vacuum circuit-breaker, its structural shape is an example with model ZW8-12, adopts air insulation, divides, closes a floodgate and adopt spring mechanism.Vacuum interrupter, main conductive circuit, main insulation, current transformer are installed in the casing, are semi-enclosed structure.Be provided with six insulation columns as high-voltage terminal at the top of casing, but bulky, poor reliability is unfavorable for installing and operation.Owing to be case structure, easily produce condensation, and cause insulation fault.
3, in Chinese patent " 200720169709.X " number, a kind of vacuum circuit-breaker is disclosed, its insulating sleeve is a monolithic construction, please cooperate referring to Fig. 2, in this vacuum circuit-breaker, current transformer 41 is built-in, is arranged on insulating sleeve 4 inside, and the iron core of current transformer 41 and insulating sleeve 4 axis coaxle ground are around in the sidewall that is arranged on insulating sleeve.The vacuum circuit-breaker of this structure is owing to be arranged on current transformer coaxially in the insulating sleeve tube wall, therefore increased the integral diameter of insulating sleeve 4, and, cause the iron core end face less, so the capacity of current transformer is significantly smaller than the external current transformer because the cover tube wall is thinner.In addition, owing to increased the diameter of insulating sleeve, therefore can not reach the purpose that reduces the vacuum circuit-breaker overall dimensions.
The design people at above problems of the prior art, proposes the insulation column with current transformer of the present utility model based on the research and development for many years to the present technique field, can overcome the defective that prior art exists effectively.
The utility model content
The purpose of this utility model provides a kind of insulation column, and especially a kind of capacity that can improve current transformer reduces the insulation column with current transformer of the volume of vacuum circuit-breaker.
The insulation column that the utility model proposes with current transformer, wherein, described insulation column is a hollow column, and its top is provided with the end of incoming cables connector, and lateral wall is provided with the leading-out terminal fixed leg, is provided with current transformer in the described leading-out terminal fixed leg.
Aforesaid insulation column with current transformer, wherein, described leading-out terminal fixed leg has the conducting rod through hole that connects the insulation column sidewall, the iron core of described current transformer is provided with around the conducting rod through hole, the orthogonal axe setting of its center line and described insulation column, the secondary line of described current transformer is drawn by the bottom along the sidewall of insulation column.
Aforesaid insulation column with current transformer, wherein, the periphery and the inwall of described insulation column are equipped with full skirt.
Aforesaid insulation column with current transformer, wherein, described full skirt is the equal diameter full skirt.
Aforesaid insulation column with current transformer, wherein, described full skirt comprises major diameter full skirt and minor diameter full skirt, and major diameter full skirt and the setting of minor diameter full skirt alternate intervals.
Mark words and phrases for special attention and advantage that the utility model is compared with known technology are:
The insulation column that the utility model proposes with current transformer, by current transformer being arranged in the leading-out terminal fixed leg, and the orthogonal axe setting of the center line of current transformer core and insulation column, thereby increased the cross section of iron core, improved the capacity of establishing current transformer in the insulation column, overcome and established the little defective of current transformer capacity in known.Adopt structure of the present utility model, only need suitably to increase the cross section of leading-out terminal fixed leg, the capacity that is provided with current transformer in just making is roughly identical with the peripheral hardware current transformer, owing to need not to increase the column diameter of insulation column, therefore can under the situation of the overall dimensions that does not increase circuit breaker, reach the purpose that improves the current transformer capacity.
Description of drawings
The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein
Figure 1A, Figure 1B are a kind of known split type insulating sleeve schematic diagrames;
Fig. 2 is a kind of known current transformer insulating sleeve schematic diagram that has;
Fig. 3 is the current transformer insulation column cross-sectional schematic that has of the present utility model;
Fig. 4 is the structural representation that is provided with circuit breaker in the current transformer insulation column that has of the present utility model.
Embodiment
Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.
Fig. 3 is the insulation column cross-sectional schematic with current transformer of the present utility model.
As shown in Figure 3, the insulation column with current transformer 1 that the utility model proposes is hollow column, form containing cavity 10 in the described ducted body, the top of described hollow column is provided with end of incoming cables connector 11, the bottom is an openend, lateral wall is provided with leading-out terminal fixed leg 12, is provided with current transformer 2 in described leading-out terminal fixed leg 12.
Described leading-out terminal fixed leg 12 has the conducting rod through hole 13 that connects the insulation column sidewall, the iron core of described current transformer is provided with around conducting rod through hole 13, its center line O '-O ' is provided with the axes O-O quadrature of described insulation column, and the secondary line 21 of described current transformer 2 is drawn by the bottom along the sidewall of insulation column 1.
The periphery of the insulation column with current transformer 1 that the utility model proposes and inwall are equipped with outside full skirt 14, inner full skirt 15, as shown in Figure 3, described full skirt 14,15 can separate identical distance along on the outer peripheral face or inwall that axially are distributed on insulation column 1 of pillar by a plurality of equal diameter full skirts.Described outside full skirt 14 also can comprise major diameter full skirt 141 and minor diameter full skirt 142, and major diameter full skirt 141 and minor diameter full skirt 142 are arranged on its outer peripheral face along the axial alternate intervals of insulation column 1, by at interval the different full skirt of this diameter 141,142 being set, can improve the anti-condensation performance of full skirt.
Fig. 4 is the structural representation that is provided with circuit breaker in the current transformer insulation column that has of the present utility model.As shown in the figure, be provided with vacuum interrupter 101 in the described containing cavity 10, described vacuum interrupter 101 be fixed on the top of containing cavity 10 by bolt 102.Conducting rod 106 is arranged in the through hole 13 of described leading-out terminal fixed leg 12, and extends in the containing cavity 10 of described insulation column 1.The bottom of described vacuum interrupter 101 by conductive clip 103, connecting bolt 104, being flexible coupling 105 is connected with described conducting rod 106, the other end of described connecting bolt 104 is connected with the insulated tension pole 106 that is arranged on containing cavity 10 bottoms simultaneously, and insulated tension pole is connected with the transmission mechanism of vacuum circuit-breaker.
Insulation column 1 with current transformer of the present utility model, current transformer 2 is arranged in the leading-out terminal fixed leg 12, make the orthogonal axe setting of the center line and the insulation column of current transformer core, thereby increased the cross section of iron core, improved the capacity of establishing current transformer in the insulation column, overcome and established the little defective of current transformer capacity in known, and do not increased the overall dimensions of circuit breaker.
The above only is the schematic embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.
Claims (5)
1, a kind of insulation column with current transformer is characterized in that: described insulation column is a hollow column, and its top is provided with the end of incoming cables connector, and lateral wall is provided with the leading-out terminal fixed leg, is provided with current transformer in the described leading-out terminal fixed leg.
2, the insulation column with current transformer as claimed in claim 1, it is characterized in that, described leading-out terminal fixed leg has the conducting rod through hole that connects the insulation column sidewall, the iron core of described current transformer is provided with around the conducting rod through hole, the orthogonal axe setting of its center line and described insulation column, the secondary line of described current transformer is drawn by the bottom along the sidewall of insulation column.
3, the insulation column with current transformer as claimed in claim 1 or 2 is characterized in that, the periphery and the inwall of described insulation column are equipped with full skirt.
4, the insulation column with current transformer as claimed in claim 3 is characterized in that, described full skirt is the equal diameter full skirt.
5, the insulation column with current transformer as claimed in claim 3 is characterized in that, described full skirt comprises major diameter full skirt and minor diameter full skirt, and major diameter full skirt and the setting of minor diameter full skirt alternate intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202340224U CN201331981Y (en) | 2008-12-31 | 2008-12-31 | Insulation column with current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202340224U CN201331981Y (en) | 2008-12-31 | 2008-12-31 | Insulation column with current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331981Y true CN201331981Y (en) | 2009-10-21 |
Family
ID=41225363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202340224U Expired - Fee Related CN201331981Y (en) | 2008-12-31 | 2008-12-31 | Insulation column with current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331981Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915864A (en) * | 2012-09-28 | 2013-02-06 | 宁波鑫鑫鑫寅电气有限公司 | Outdoor on-post wide-voltage vacuum breaker |
| CN103280371A (en) * | 2013-05-20 | 2013-09-04 | 宁波鑫鑫鑫寅电气有限公司 | Insulating sleeve of outdoor pole-mounted double voltage sensors |
| CN103682862A (en) * | 2013-12-25 | 2014-03-26 | 航天科工深圳（集团）有限公司 | Cable plug connector of ring main unit |
-
2008
- 2008-12-31 CN CNU2008202340224U patent/CN201331981Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915864A (en) * | 2012-09-28 | 2013-02-06 | 宁波鑫鑫鑫寅电气有限公司 | Outdoor on-post wide-voltage vacuum breaker |
| CN102915864B (en) * | 2012-09-28 | 2014-11-12 | 宁波鑫鑫鑫寅电气有限公司 | Outdoor on-post wide-voltage vacuum breaker |
| CN103280371A (en) * | 2013-05-20 | 2013-09-04 | 宁波鑫鑫鑫寅电气有限公司 | Insulating sleeve of outdoor pole-mounted double voltage sensors |
| CN103280371B (en) * | 2013-05-20 | 2015-08-26 | 宁波鑫鑫鑫寅电气有限公司 | A kind of insulating sleeve of Standard type twin voltage transducer |
| CN103682862A (en) * | 2013-12-25 | 2014-03-26 | 航天科工深圳（集团）有限公司 | Cable plug connector of ring main unit |
| CN103682862B (en) * | 2013-12-25 | 2016-08-24 | 航天科工深圳（集团）有限公司 | A kind of ring main unit cable connector |
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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: 20091021 Termination date: 20121231 |