CN105280366A - I-shaped current transformer - Google Patents
I-shaped current transformer Download PDFInfo
- Publication number
- CN105280366A CN105280366A CN201510703803.8A CN201510703803A CN105280366A CN 105280366 A CN105280366 A CN 105280366A CN 201510703803 A CN201510703803 A CN 201510703803A CN 105280366 A CN105280366 A CN 105280366A
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- magnetic core
- current transformer
- coil
- shaped current
- busbar
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Abstract
The invention discloses an I-shaped current transformer. The I-shaped current transformer comprises a shell, a magnetic arranged in the shell, and a coil wound on the magnetic core; the magnetic core is an I-shaped structure, and the coil is wound on a middle connecting rod of the magnetic core; the product is simple in design, and convenient for installing and power-taking, so that a plurality of device applications needing field power-taking can be realized, the requirements on different power transmission diameter sizes or busbar widths are satisfied, the security is reliable, the I-shaped current transformer can deviate from other cable busbar when being installed and cannot influence alternative insulation pitches of the voltage, the running of a power system is guaranteed; through the adoption of a permalloy magnetic core, the weight of the transformer is lightened, and the transformer is more portable.
Description
Technical field
The present invention relates to instrument transformer field, particularly a kind of drum current transformer.
Background technology
In electric power system, extensively adopt current transformer to carry out online power taking, power to power equipment, but the current transformer electricity getting device adopted now mostly is annular design, when needing current transformer to be enclosed within cable line or busbar, just power transmission line or busbar must be disconnected and pack into current transformer again, this design brings very big inconvenience to in-site installation, sometimes even cannot be applied to scene.Even can the current transformer power taking of open loop, cable is entangled in its open loop, and closed loop installation is at the scene also inconvenient again, it be all the iron core of heaviness in the current transformer of simultaneously these annulars, volume is large, the safe spacing of transmission line can be affected, and ring current transformer, its internal diameter size also cannot meet the thickness width of all on-site cable and busbar.
Summary of the invention
In order to overcome the deficiency of above-mentioned existing equipment, not needing to disconnect cable or busbar when the invention provides a kind of installation, and meeting the drum current transformer of different power transmission cable diameter or busbar width.
To achieve these goals, the technical solution used in the present invention is:
A kind of drum current transformer, comprise housing, magnetic core and coil, it is characterized in that: described magnetic core is drum structure, described coil is around on the intermediate connecting rod of magnetic core.
Described magnetic core adopts permalloy material manufacture to form.
Be provided with multiple cavity in described housing, described magnetic core and coil are placed in one of them cavity of housing, filling with epoxy resin.
Circuit board is provided with in another cavity of described housing.
Beneficial effect of the present invention:
A kind of drum current transformer of the present invention, only with binding strap, housing and busbar need be bundled when mounted, do not need during in-site installation to disconnect cable or busbar, without the need under changing and moving on-the-spot power transmission and distribution line condition, conveniently can carry out installation power taking, make some need the equipment of on-the-spot power taking to apply and be achieved; Drum design makes its application no longer be subject to the restriction of transmission of electricity diameter or busbar width, does not need the current transformer producing different-diameter size specification, can meet the field demand of various situation; Drum current transformer can depart from other cable busbars when mounted, can not have influence on the insulation clearance that voltage is alternate, can ensure power system operation; Described drum current transformer adopts permalloy magnetic core, alleviates the weight of instrument transformer, lighter.
Accompanying drawing explanation
Fig. 1 is present pre-ferred embodiments structural representation.
Fig. 2 is that present pre-ferred embodiments and busbar install left view.
Fig. 3 is that present pre-ferred embodiments and busbar install front view.
Fig. 4 is present pre-ferred embodiments circuit theory schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and the preferred embodiments of the present invention, the present invention will be further described:
Referring to figs. 1 through Fig. 4, a kind of drum current transformer, comprise housing 1, magnetic core 2 and coil 3, described magnetic core 2 is drum structure, described coil 3, around on the intermediate connecting rod of magnetic core 2, adopts the magnetic core 2 of drum can increase the sectional area on its both sides, can not need the area and the cable current that increase coil 3 like this, also effectively can increase magnetic flux by coil 3, produce larger induced current.Described magnetic core 2 adopts permalloy material manufacture to form, and it has very high magnetic permeability and magnetic saturation ability, can ensure magnetic flux effectively by magnetic core 2, assembles more magnetic flux through coil 3.Be provided with three cavitys in described housing 1, when actual production, described number of cavities can be 2,4 or other number.Described magnetic core 2 is placed in the drum chamber in the middle part of housing 1 with coil 3, and filling with epoxy resin, be provided with circuit board in described housing 1 right-side cavity, left side cavity can place other circuit element.
During power taking, the magnetic core 2 of drum is wound with coil 3, in the electromagnetic field of cable, produces electrification current voltage; be direct current through current rectifying and wave filtering circuit by current conversion; pressure limiting circuit protection prevents overtension, then voltage is carried out lowering and stabilizing blood pressure, finally exports the power supply that supply arrangement uses.
Housing 1 and busbar 6 only need bundle with binding strap 5 by described instrument transformer when mounted, do not need disconnection cable or busbar conveniently can carry out installation power taking.
More than that better enforcement of the present invention is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (4)
1. a drum current transformer, comprise housing (1), magnetic core (2) and coil (3), it is characterized in that: described magnetic core (2) is drum structure, described coil (3) is around on the intermediate connecting rod of magnetic core (2).
2. a kind of drum current transformer according to claim 1, is characterized in that: described magnetic core (2) adopts permalloy material manufacture to form.
3. a kind of drum current transformer according to claim 2, it is characterized in that: described housing is provided with at least two cavitys in (1), described magnetic core (2) and coil (3) are placed in one of them cavity of housing (1), and filling with epoxy resin.
4. a kind of drum current transformer according to claim 3, is characterized in that: be provided with circuit board (4) in another cavity of described housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703803.8A CN105280366A (en) | 2015-10-23 | 2015-10-23 | I-shaped current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510703803.8A CN105280366A (en) | 2015-10-23 | 2015-10-23 | I-shaped current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105280366A true CN105280366A (en) | 2016-01-27 |
Family
ID=55149219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510703803.8A Pending CN105280366A (en) | 2015-10-23 | 2015-10-23 | I-shaped current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105280366A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123532A (en) * | 2017-06-30 | 2017-09-01 | 福州大学 | A kind of ac bus magnetic coupling energy taking device and method |
| CN107492428A (en) * | 2017-08-13 | 2017-12-19 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of non-crystaline amorphous metal transformer containing nanometer iron powder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002363A1 (en) * | 1980-02-15 | 1981-08-20 | Knudsen Nordisk Elect | A device for indicating an alternating current in a conductor |
| JPH02201909A (en) * | 1989-01-30 | 1990-08-10 | Tokin Corp | Surface mounting type vertical current transformer and manufacture thereof |
| CN101556862A (en) * | 2009-01-22 | 2009-10-14 | 英飞特电子（杭州）有限公司 | High-frequency pulse current transformer |
| CN201584278U (en) * | 2009-05-19 | 2010-09-15 | 北京新创四方电子有限公司 | Vertical core through small-sized precision voltage and current general mutual inductor |
| CN203070913U (en) * | 2013-01-31 | 2013-07-17 | 宋冬灵 | High-voltage line current transformer |
| US20140084697A1 (en) * | 2011-01-19 | 2014-03-27 | National University Corporation Saitama University | Contactless power transfer apparatus |
| JP2014063856A (en) * | 2012-09-20 | 2014-04-10 | Murata Mfg Co Ltd | Composite magnetic component and switching power supply device |
-
2015
- 2015-10-23 CN CN201510703803.8A patent/CN105280366A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1981002363A1 (en) * | 1980-02-15 | 1981-08-20 | Knudsen Nordisk Elect | A device for indicating an alternating current in a conductor |
| JPH02201909A (en) * | 1989-01-30 | 1990-08-10 | Tokin Corp | Surface mounting type vertical current transformer and manufacture thereof |
| CN101556862A (en) * | 2009-01-22 | 2009-10-14 | 英飞特电子（杭州）有限公司 | High-frequency pulse current transformer |
| CN201584278U (en) * | 2009-05-19 | 2010-09-15 | 北京新创四方电子有限公司 | Vertical core through small-sized precision voltage and current general mutual inductor |
| US20140084697A1 (en) * | 2011-01-19 | 2014-03-27 | National University Corporation Saitama University | Contactless power transfer apparatus |
| JP2014063856A (en) * | 2012-09-20 | 2014-04-10 | Murata Mfg Co Ltd | Composite magnetic component and switching power supply device |
| CN203070913U (en) * | 2013-01-31 | 2013-07-17 | 宋冬灵 | High-voltage line current transformer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123532A (en) * | 2017-06-30 | 2017-09-01 | 福州大学 | A kind of ac bus magnetic coupling energy taking device and method |
| CN107492428A (en) * | 2017-08-13 | 2017-12-19 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of non-crystaline amorphous metal transformer containing nanometer iron powder |
| CN107492428B (en) * | 2017-08-13 | 2019-05-10 | 安徽君华舜义恩佳非晶材料有限公司 | A kind of amorphous alloy mutual inductor containing nanometer iron powder |
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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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Xiang Inventor before: Zhang Zhongyou Inventor before: Zhang Xiang Inventor before: Zhang Hao |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160127 |