CN102938309A - Dry type current transformer - Google Patents
Dry type current transformer Download PDFInfo
- Publication number
- CN102938309A CN102938309A CN2012104746680A CN201210474668A CN102938309A CN 102938309 A CN102938309 A CN 102938309A CN 2012104746680 A CN2012104746680 A CN 2012104746680A CN 201210474668 A CN201210474668 A CN 201210474668A CN 102938309 A CN102938309 A CN 102938309A
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- CN
- China
- Prior art keywords
- current transformer
- dry type
- type current
- aluminum pipe
- aluminium bar
- 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.)
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Abstract
The invention relates to a dry type current transformer, and belongs to the technical field of manufacturing of transformers. The technical scheme includes that the dry type current transformer comprise a primary terminal (1), a connecting cover (2),a silicone shed (3), a body(4), a casing (5) and a base (7), wherein the casing is arranged on the base, the body is arranged in the casing, the silicone shed, the connecting cover and the primary terminal are arranged on the upper portion of the body, an aluminum rod (8), an insulating tube (9) and an aluminum tube (10) are disposed in the body, the insulating tube is arranged outside the aluminum rod, and then the combination of the insulating tube and the aluminum rod is inserted into the aluminum tube and then a U-shaped structure is formed by means of bending. Since a primary winding of the dry type current transformer consists of the aluminum rod, the aluminum tube and the insulating tube, the primary winding can be subjected to serial connection or parallel connection, diversity of current ratio of products is realized, and various requirements of users to the current ratio can be met; owning to the designed secondary winding, weight of the dry type current transformer can be reduced, material cost can be lowered, the current ratio can be increased correspondingly, pass rate of products is increased, the total cost of products is reduced, and the market competitiveness can be enhanced.
Description
Technical field
The present invention relates to a kind of dry-type current transformer, belong to instrument transformer manufacturing technology field.
Background technology
At present, dry type mutual inductor technology comparative maturity, and dry type mutual inductor has following advantage: office puts little, and without gas, the line service amount is few without insulator for nothing oil, and pollution flashover is good, and silicon rubber full skirt ageing-resistant performance is good.Dry type mutual inductor obtains market approval and extensive use, yet the dry type mutual inductor structure is single, it mainly is the bar type structure, cause like this a umber of turn to only have a circle, when requirement on the circuit is less by once winding current, corresponding secondary winding design is just relatively more difficult, especially survey the metering secondary winding, area of core section is larger, and average magnetic circuit is long, and whole secondary winding design height is higher, and weight ratio is larger, cause at last product overall acceptability rate not high, and cost compare is high, does not possess the market competitiveness.
Summary of the invention
The purpose of this invention is to provide a kind of dry-type current transformer, adopt the aluminium pipe sleeve aluminium bar, product reaches the current ratio diversity, and qualification rate improves, and total cost lowers, and increases the market competitiveness, solves the problems referred to above that background technology exists.
Technical scheme of the present invention is: a kind of dry-type current transformer, comprise the primary connection terminal, connect cover, silicon rubber full skirt, device body, shell and base, shell is arranged on the base, the setting of device body in the enclosure, the device body arranges the silicon rubber full skirt, connects cover and primary connection terminal, comprises aluminium bar, insulated tube and aluminum pipe in the described device body, in the aluminium bar outside one deck insulated tube is set, and then integral body is inserted in the aluminum pipe, and Wei becomes U-shaped structure, consists of a winding of current transformer; Aluminium bar and aluminum pipe change a umber of turn of current transformer by the connecting mode of serial or parallel connection, are two circles when aluminium bar and aluminum pipe series connection, and aluminium bar and aluminum pipe are a circle when in parallel.
Good effect of the present invention: dry-type current transformer of the present invention, winding is comprised of aluminium bar and aluminum pipe and insulated tube, and one time winding can be realized series parallel structure, thereby makes product reach the current ratio diversity, satisfy user's various current ratio requirements, the secondary winding of design can reduce weight, and material cost lowers, and current ratio raises accordingly, survey metering secondary winding is easier and meet the demands, product percent of pass is improved, and mass customization lowers, and increases the market competitiveness.
Description of drawings
Fig. 1 is embodiment of the invention schematic diagram;
Fig. 2 is winding schematic diagram of the embodiment of the invention;
Among the figure: primary connection terminal 1, connection cover 2, silicon rubber full skirt 3, device body 4, shell 5, suspension hook 6, base 7, aluminium bar 8, insulated tube 9, aluminum pipe 10.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described by embodiment.
A kind of dry-type current transformer, comprise primary connection terminal 1, connect cover 2, silicon rubber full skirt 3, device body 4, shell 5 and base 7, shell is arranged on the base, the setting of device body in the enclosure, the device body arranges the silicon rubber full skirt, connects cover and primary connection terminal, comprises aluminium bar 8, insulated tube 9 and aluminum pipe 10 in the described device body, in the aluminium bar outside one deck insulated tube is set, and then integral body is inserted in the aluminum pipe, and Wei becomes the U-shaped structure, consists of a winding of current transformer; Aluminium bar and aluminum pipe change a umber of turn of current transformer by the connecting mode of serial or parallel connection, are two circles when aluminium bar and aluminum pipe series connection, and aluminium bar and aluminum pipe are a circle when in parallel.
The present invention is because adopt aluminium, and improved the number of ampere turns of current transformer, reduced cost.
Claims (1)
1. dry-type current transformer, it is characterized in that: comprise primary connection terminal (1), connect cover (2), silicon rubber full skirt (3), device body (4), shell (5) and base (7), shell is arranged on the base, the setting of device body in the enclosure, the device body arranges the silicon rubber full skirt, connects cover and primary connection terminal, comprise aluminium bar (8), insulated tube (9) and aluminum pipe (10) in the described device body, in the aluminium bar outside one deck insulated tube is set, and then integral body is inserted in the aluminum pipe; and Wei becomes the U-shaped structure, a winding of formation current transformer; Aluminium bar and aluminum pipe change a umber of turn of current transformer by the connecting mode of serial or parallel connection, are two circles when aluminium bar and aluminum pipe series connection, and aluminium bar and aluminum pipe are a circle when in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104746680A CN102938309A (en) | 2012-11-21 | 2012-11-21 | Dry type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104746680A CN102938309A (en) | 2012-11-21 | 2012-11-21 | Dry type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102938309A true CN102938309A (en) | 2013-02-20 |
Family
ID=47697199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104746680A Pending CN102938309A (en) | 2012-11-21 | 2012-11-21 | Dry type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102938309A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2955730A1 (en) * | 2014-06-10 | 2015-12-16 | ABB Technology Ltd | Current transformer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2922084Y (en) * | 2006-06-27 | 2007-07-11 | 北京华电云通电力技术有限公司 | Multi-current ratio, high-accuracy organic compound insulation dry-type high voltage current mutual inductor |
| RU2315385C1 (en) * | 2006-07-05 | 2008-01-20 | Вячеслав Александрович Артеменко | Current transformer for oil switch |
-
2012
- 2012-11-21 CN CN2012104746680A patent/CN102938309A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2922084Y (en) * | 2006-06-27 | 2007-07-11 | 北京华电云通电力技术有限公司 | Multi-current ratio, high-accuracy organic compound insulation dry-type high voltage current mutual inductor |
| RU2315385C1 (en) * | 2006-07-05 | 2008-01-20 | Вячеслав Александрович Артеменко | Current transformer for oil switch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2955730A1 (en) * | 2014-06-10 | 2015-12-16 | ABB Technology Ltd | Current transformer |
| WO2015189000A1 (en) * | 2014-06-10 | 2015-12-17 | Abb Technology Ltd | Current transformer |
| RU2652703C1 (en) * | 2014-06-10 | 2018-05-08 | Абб Швайц Аг | Current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130220 |