CN205211583U - I -shaped current transformer - Google Patents
I -shaped current transformer Download PDFInfo
- Publication number
- CN205211583U CN205211583U CN201520838652.2U CN201520838652U CN205211583U CN 205211583 U CN205211583 U CN 205211583U CN 201520838652 U CN201520838652 U CN 201520838652U CN 205211583 U CN205211583 U CN 205211583U
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- magnetic core
- current transformer
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- utility
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Abstract
The utility model discloses a I -shaped current transformer, some coils of magnetic core and magnetic core shangrao that set up in casing, casing, the magnetic core is the i -shaped structure, the coil is around on the intermediate connecting rod of magnetic core, this product design is succinct, can conveniently install and get for some equipment application that need the scene to get the electricity can realize, satisfy the big or small or female demand of arranging width of different transmission of electricity diameters, and the security performance is reliable, and I -shaped current transformer can deviate other cables mother and arrange when the installation, can not influence the insulating interval that voltage is alternate, can ensure power system operation, adopts the permalloy magnetic core, has alleviateed the weight of mutual -inductor, and is lighter.
Description
Technical field
The utility model 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 utility model 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 adopted in the utility model 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 is adopted as permalloy magnetic core.
Be provided with multiple cavity in described housing, described magnetic core and coil are placed in a wherein cavity of housing, filling with epoxy resin.
Circuit board is provided with in another cavity of described housing.
The beneficial effects of the utility model:
A kind of drum current transformer of the utility model, 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 the utility model preferred embodiment structural representation.
Fig. 2 is that the utility model preferred embodiment and busbar install left view.
Fig. 3 is that the utility model preferred embodiment and busbar install front view.
Fig. 4 is the utility model preferred embodiment circuit theory schematic diagram.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment of the present utility model, the utility model is described further:
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 utility model is illustrated, but the utility model is created and 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 the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (2)
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), described magnetic core (2) is permalloy magnetic core, described housing is provided with at least two cavitys in (1), the wherein cavity that described magnetic core (2) and coil (3) are placed on housing (1) is interior and filling with epoxy resin, and described housing (1) is bundled by binding strap (5) and busbar (6) and installs.
2. a kind of drum current transformer according to claim 1, 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 |
|---|---|---|---|
| CN201520838652.2U CN205211583U (en) | 2015-10-23 | 2015-10-23 | I -shaped current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520838652.2U CN205211583U (en) | 2015-10-23 | 2015-10-23 | I -shaped current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211583U true CN205211583U (en) | 2016-05-04 |
Family
ID=55849283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520838652.2U Active CN205211583U (en) | 2015-10-23 | 2015-10-23 | I -shaped current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211583U (en) |
-
2015
- 2015-10-23 CN CN201520838652.2U patent/CN205211583U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |