CN204204624U - A kind of three-phase integrated resin encapsulation type current transformer - Google Patents
A kind of three-phase integrated resin encapsulation type current transformer Download PDFInfo
- Publication number
- CN204204624U CN204204624U CN201420634723.2U CN201420634723U CN204204624U CN 204204624 U CN204204624 U CN 204204624U CN 201420634723 U CN201420634723 U CN 201420634723U CN 204204624 U CN204204624 U CN 204204624U
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- magnetic core
- coil
- current transformer
- type current
- insulation shell
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- Expired - Fee Related
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Abstract
A kind of three-phase integrated resin encapsulation type current transformer, comprises sealing resin external insulation shell, magnetic core coil.Described magnetic core coil is three, and magnetic core coil produces induced potential by primary winding and secondary coil by the coupling of R shaped iron core, is wherein penetration type hollow-core construction in the middle of primary winding, facilitates ring main unit three outlet casing tubes to pass.Described three magnetic core coils skin adopts poured with epoxy resin to be enclosed in by inner core coil and is integrally formed sealing resin external insulation shell, three magnetic core coils are independently independent of each other separately.The utility model volume is little, lightweight, and the small space be convenient in ring main unit outlet is installed, high sensitivity, low error.
Description
Technical field
The utility model relates to instrument transformer technology, particularly relates to a kind of three-phase integrated resin encapsulation type current transformer.
Background technology
At present along with the propelling of intelligent grid, power equipment trend toward miniaturization seems obvious all the more, and for guaranteeing the reliability of powering, looped network formula powering mode is adopted in a large number, and ring main unit compact conformation inner space is limited, and requiring current transformer must compact.In ring main unit, three-phase integrated resin encapsulation type current transformer is greatly developed; be 3kV, 6kV, 10KV for indoor rated voltage; on the ring main unit line three-phase sleeve pipe of rated frequency 50/60Hz; as current measurement and the Microcomputer Protection of electric equipment, meet the requirement of current transformer miniaturization.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of volume little, lightweight, is convenient to the three-phase integrated resin encapsulation type current transformer that the small space in ring main unit outlet is installed.
The technical scheme adopted is
A kind of three-phase integrated resin encapsulation type current transformer, comprises sealing resin external insulation shell, magnetic core coil.Described magnetic core coil is three, and magnetic core coil produces induced potential by primary winding and secondary coil by the coupling of R shaped iron core, is wherein penetration type hollow-core construction in the middle of primary winding, facilitates ring main unit three outlet casing tubes to pass.Described three magnetic core coils skin adopts poured with epoxy resin to be enclosed in by inner core coil and is integrally formed sealing resin external insulation shell, three magnetic core coils are independently independent of each other separately.
With three lead-out terminals in the middle of above-mentioned secondary coil, form two different sizes and export two no-load voltage ratio voltage.
Above-mentioned sealing resin external insulation shell corner is provided with installing hole.
The utility model technical characterstic:
A. the magnetic core in coil adopts high permeability material: initial magnetic permeability is not less than 65000Gs/Oe thus realizes high sensitivity, low error;
B. shielding process: semi-conducting material is evenly distributed on primary winding and forms high voltage shield.Secondary coil and employing bulk shielding technique unshakable in one's determination, ensure that three coils are in independently magnetic field, be independent of each other.C. whole coil is contained in and moulds in shell, uses epoxy resin encapsulated under vacuum conditions, can realize high electric strength, guarantee useful life, the requirement of outward appearance exquisiteness;
D. all material is H level heat proof material, meets the fire protection requirement of fire department;
The utility model volume is little, lightweight, and the small space be convenient in ring main unit outlet is installed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
A kind of three-phase integrated resin encapsulation type current transformer, comprises sealing resin external insulation shell 3, magnetic core coil 2.Described magnetic core coil 2 is three, and magnetic core coil 2 produces induced potential by primary winding and secondary coil by the coupling of R shaped iron core, with three lead-out terminals in the middle of secondary coil, forms two different sizes and exports two no-load voltage ratio voltage.Be penetration type hollow-core construction 1 in the middle of primary winding, facilitate ring main unit three outlet casing tubes to pass.Described three magnetic core coils 2 skin adopts poured with epoxy resin to be enclosed in by inner core coil and is integrally formed sealing resin external insulation shell 3, three magnetic core coils are independently independent of each other separately, its 3 four jiaos, sealing resin external insulation shell is provided with installing hole 4, forms a kind of three-phase integrated resin encapsulation type current transformer.
Claims (3)
1. a three-phase integrated resin encapsulation type current transformer, comprise sealing resin external insulation shell (3), magnetic core coil (2), it is characterized in that described magnetic core coil (2) is three, magnetic core coil (2) produces induced potential by primary winding and secondary coil by the coupling of R shaped iron core, be wherein penetration type hollow-core construction (1) in the middle of primary winding, ring main unit three outlet casing tubes are facilitated to pass, described three magnetic core coils (2) skin adopts poured with epoxy resin to be enclosed in by inner core coil and is integrally formed sealing resin external insulation shell (3), three magnetic core coils are independently independent of each other separately.
2. one according to claim 1 three-phase integrated resin encapsulation type current transformer, is characterized in that described secondary coil is middle with three lead-out terminals, forms two different sizes and exports two no-load voltage ratio voltages.
3. one according to claim 1 three-phase integrated resin encapsulation type current transformer, is characterized in that described sealing resin external insulation shell (3) corner is provided with installing hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420634723.2U CN204204624U (en) | 2014-10-30 | 2014-10-30 | A kind of three-phase integrated resin encapsulation type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420634723.2U CN204204624U (en) | 2014-10-30 | 2014-10-30 | A kind of three-phase integrated resin encapsulation type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204204624U true CN204204624U (en) | 2015-03-11 |
Family
ID=52662555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420634723.2U Expired - Fee Related CN204204624U (en) | 2014-10-30 | 2014-10-30 | A kind of three-phase integrated resin encapsulation type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204204624U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601457A (en) * | 2017-01-24 | 2017-04-26 | 北京合锐赛尔电力科技股份有限公司 | Current transformer with temperature measuring device |
| CN106706516A (en) * | 2015-11-17 | 2017-05-24 | 安徽中医药高等专科学校 | Manufacturing method of aperture-adjustable easy-repairing plastic-based infrared solid sample cell |
| CN111312466A (en) * | 2020-04-13 | 2020-06-19 | 湖南科太电气有限公司 | Three-phase integrated coil of dry type voltage-regulating soft starter |
-
2014
- 2014-10-30 CN CN201420634723.2U patent/CN204204624U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106706516A (en) * | 2015-11-17 | 2017-05-24 | 安徽中医药高等专科学校 | Manufacturing method of aperture-adjustable easy-repairing plastic-based infrared solid sample cell |
| CN106601457A (en) * | 2017-01-24 | 2017-04-26 | 北京合锐赛尔电力科技股份有限公司 | Current transformer with temperature measuring device |
| CN111312466A (en) * | 2020-04-13 | 2020-06-19 | 湖南科太电气有限公司 | Three-phase integrated coil of dry type voltage-regulating soft starter |
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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: 20150311 Termination date: 20171030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |