CN206541731U - A kind of current transformer of low current high accuracy - Google Patents
A kind of current transformer of low current high accuracy Download PDFInfo
- Publication number
- CN206541731U CN206541731U CN201720309980.2U CN201720309980U CN206541731U CN 206541731 U CN206541731 U CN 206541731U CN 201720309980 U CN201720309980 U CN 201720309980U CN 206541731 U CN206541731 U CN 206541731U
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- CN
- China
- Prior art keywords
- containment vessel
- input
- current transformer
- iron core
- high accuracy
- 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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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a kind of current transformer of low current high accuracy; including input containment vessel, mounting and fixing support and input coil; the input containment vessel is arranged on the top of upper containment vessel; and it is provided with input terminal below input containment vessel; output protection shell is provided with the left of the upper containment vessel; and upper containment vessel is internally provided with input iron core; the input coil is arranged on the inside of upper containment vessel; and be provided with below input coil below output winding, the input iron core and be provided with output iron core.The utility model is scientific and reasonable for structure, it is safe and convenient to use, fan is mounted with the inside of current transformer, so when operation of current transformers, fan will dry current transformer, it thus can timely reduce the temperature of current transformer so that current transformer can work at an appropriate temperature, can thus improve the degree of accuracy and the performance of current transformer.
Description
Technical field
The utility model belongs to current transformer technical field, and in particular to a kind of Current Mutual Inductance of low current high accuracy
Device.
Background technology
Current transformer principle is made according to electromagnetic induction principle.Current transformer is the iron core and winding by closing
Composition.Its first side winding number of turn seldom, is gone here and there in the circuit for the electric current for needing to measure, therefore it often has the whole of circuit
Electric current flows through, and secondary side winding turn ratio is more, is serially connected in measuring instrumentss and protective loop, current transformer operationally,
Its secondary side circuit is to close all the time, therefore measuring instrumentss and the impedance very little of protective loop series coil, Current Mutual Inductance
The close short circuit of the working condition of device.Current transformer is that primary side high current is converted into secondary side low current to measure, secondary
Side can not open a way.Current transformer principle [1] is according to electromagnetic induction principle.Current transformer be by close iron core and around
Group composition.Its first winding number of turn seldom, is gone here and there in the circuit for the electric current for needing to measure, therefore it often has the whole of circuit
Electric current flows through, and secondary winding turn ratio is more, is serially connected in measuring instrumentss and protective loop, current transformer operationally, it
Secondary circuit be closure all the time, therefore measuring instrumentss and the impedance very little of protective loop series coil, current transformer
The close short circuit of working condition.
But present current transformer has some defects in use, for example, present current transformer exists
Heating is easy to when work, service precision and the degree of accuracy of current transformer can be thus had a strong impact on.
Utility model content
The purpose of this utility model is to provide a kind of current transformer of low current high accuracy, to solve above-mentioned background
The problem of heating proposed in technology.
To achieve the above object, the utility model provides following technical scheme：A kind of electric current of low current high accuracy is mutual
Sensor, including input containment vessel, mounting and fixing support and input coil, the input containment vessel are arranged on the upper of upper containment vessel
Side, and input terminal is provided with below input containment vessel, the both sides of the input containment vessel are provided with fixing nut,
The both sides of the upper containment vessel, which are provided with below attaching nut, and upper containment vessel, is provided with lower containment vessel, and the installation is fixed
Frame is arranged on the lower section of lower containment vessel, and fan is provided with above lower containment vessel, and the lower section both sides of the lower containment vessel are set
Have and outlet terminal is provided with the left of installation fixing hole, and lower containment vessel, output is provided with the left of the upper containment vessel and is protected
Protective case, and upper containment vessel is internally provided with input iron core, the input coil is arranged on the inside of upper containment vessel, and input line
It is provided with below circle below output winding, the input iron core and is provided with output iron core, and the lower section of input iron core is set
There is flabellum.
It is preferred that, the fixing nut is provided with two altogether, and two fixing nuts are separately mounted to input containment vessel
Both sides.
It is preferred that, the attaching nut is provided with two altogether, and two attaching nuts are separately mounted to the two of containment vessel
Side.
It is preferred that, the installation fixing hole is provided with two altogether, and two are installed fixing hole and are installed in lower containment vessel
Lower section.
It is preferred that, the flabellum is provided with four altogether, and four flabellums are installed in the inside of fan.
Compared with prior art, the beneficial effects of the utility model are：The utility model is scientific and reasonable for structure, uses safety
It is convenient, fan is mounted with the inside of current transformer, so when operation of current transformers, fan will be mutual to electric current
Sensor is dried, and thus can timely reduce the temperature of current transformer so that current transformer can be appropriate at one
At a temperature of work, can thus improve the degree of accuracy and the performance of current transformer.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is internal structure schematic diagram of the present utility model；
In figure：1- inputs containment vessel, 2- input terminals, 3- fixing nuts, the upper containment vessels of 4-, 5- attaching nut, 6-
Lower containment vessel, 7- mounting and fixing supports, 8- fans, 9- install fixing hole, 10- outlet terminals, 11- output protections shell, 12- inputs
Iron core, 13- input coils, 14- output windings, 15- output iron cores, 16- flabellums.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1 and Fig. 2 are referred to, the utility model provides a kind of technical scheme：A kind of electric current of low current high accuracy is mutual
Sensor, including input containment vessel 1, mounting and fixing support 7 and input coil 13, input containment vessel 1 are arranged on upper containment vessel 4
Top, and the lower section of input containment vessel 1 is provided with input terminal 2, the both sides of input containment vessel 1 are provided with fixing nut
3, the both sides of upper containment vessel 4 are provided with attaching nut 5, and the lower section of upper containment vessel 4 is provided with lower containment vessel 6, mounting and fixing support 7
The top of the lower section of lower containment vessel 6, and lower containment vessel 6 is provided with fan 8, the lower section both sides of lower containment vessel 6 are provided with
Fixing hole 9 is installed, and the left side of lower containment vessel 6 is provided with outlet terminal 10, the left side of upper containment vessel 4 is provided with output protection
Shell 11, and being internally provided with for upper containment vessel 4 inputs iron core 12, input coil 13 is arranged on the inside of upper containment vessel 4, and input
The lower section of coil 13 is provided with output winding 14, and the lower section of input iron core 12 is provided with output iron core 15, and inputs iron core 12
Lower section is provided with flabellum 16
More firm in order to fix, in the implementation case, it is preferred that fixing nut 3 is provided with two altogether, and two are consolidated
Determine the both sides that nut 3 is separately mounted to input containment vessel 1.
More fastened in order to connect, in the implementation case, it is preferred that attaching nut 5 is provided with two, and two altogether
Attaching nut 5 is separately mounted to the both sides of containment vessel 4.
More fastened to install, in the implementation case, it is preferred that fixing hole 9 is installed and is provided with two, and two altogether
The lower section that fixing hole 9 is installed in lower containment vessel 6 is installed.
In order to which wind-force is bigger, in the implementation case, it is preferred that flabellum 16 is provided with four altogether, and four flabellums 16 are pacified
Mounted in the inside of fan 8.
Operation principle of the present utility model and use flow：After the utility model is installed, input electric wire is connected to defeated
Enter on terminals 2, output electric wire is connected on outlet terminal 10, then switched on power, such electric current will pass through input line
13 are enclosed, then input coil 13 will produce magnetic field, the magnetic field that at this moment input coil 13 is produced will act on output winding 14
On, at this moment output winding 14 will produce electric current under the magnetic fields that input coil 13 is produced, and then output winding 14 is produced
Electric current will be exported by outlet terminal 10, and current transformer is during work, and fan 8 can be to Current Mutual Inductance
Device is dried so that the temperature of current transformer will not be too high, improves the service precision of current transformer.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of current transformer of low current high accuracy, including input containment vessel (1), mounting and fixing support (7) and input
Coil (13), it is characterised in that：The input containment vessel (1) is arranged on the top of upper containment vessel (4), and input containment vessel
(1) input terminal (2) is provided with below, the both sides of the input containment vessel (1) are provided with fixing nut (3), described
The both sides of upper containment vessel (4), which are provided with below attaching nut (5), and upper containment vessel (4), is provided with lower containment vessel (6), described
Mounting and fixing support (7) is arranged on the lower section of lower containment vessel (6), and is provided with fan (8) above lower containment vessel (6), it is described under
The lower section both sides of containment vessel (6) are provided with installation fixing hole (9), and are provided with outlet terminal on the left of lower containment vessel (6)
(10), it is provided with output protection shell (11) on the left of the upper containment vessel (4), and upper containment vessel (4) is internally provided with input
Iron core (12), the input coil (13) is arranged on the inside of upper containment vessel (4), and is provided with below input coil (13) defeated
Go out and output iron core (15) is provided with below coil (14), the input iron core (12), and the lower section of input iron core (12) is set
There is flabellum (16).
2. a kind of current transformer of low current high accuracy according to claim 1, it is characterised in that：The fixed spiral shell
Female (3) are provided with two altogether, and two fixing nuts (3) are separately mounted to input the both sides of containment vessel (1).
3. a kind of current transformer of low current high accuracy according to claim 1, it is characterised in that：The connection spiral shell
Female (5) are provided with two altogether, and two attaching nuts (5) are separately mounted to the both sides of containment vessel (4).
4. a kind of current transformer of low current high accuracy according to claim 1, it is characterised in that：It is described to install solid
Determine hole (9) and be provided with two altogether, and two are installed the lower section that fixing hole (9) is installed in lower containment vessel (6).
5. a kind of current transformer of low current high accuracy according to claim 1, it is characterised in that：The flabellum
(16) four are provided with altogether, and four flabellums (16) are installed in the inside of fan (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309980.2U CN206541731U (en) | 2017-03-28 | 2017-03-28 | A kind of current transformer of low current high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720309980.2U CN206541731U (en) | 2017-03-28 | 2017-03-28 | A kind of current transformer of low current high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206541731U true CN206541731U (en) | 2017-10-03 |
Family
ID=59943025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720309980.2U Expired - Fee Related CN206541731U (en) | 2017-03-28 | 2017-03-28 | A kind of current transformer of low current high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206541731U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738683A (en) * | 2019-01-22 | 2019-05-10 | 广东航粤电气有限公司 | A kind of communication type current transformer of more open types |
| CN113035540A (en) * | 2021-02-01 | 2021-06-25 | 青岛市产品质量监督检验研究院 | Current transformer structure based on magnetic field coil |
-
2017
- 2017-03-28 CN CN201720309980.2U patent/CN206541731U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738683A (en) * | 2019-01-22 | 2019-05-10 | 广东航粤电气有限公司 | A kind of communication type current transformer of more open types |
| CN113035540A (en) * | 2021-02-01 | 2021-06-25 | 青岛市产品质量监督检验研究院 | Current transformer structure based on magnetic field coil |
| CN113035540B (en) * | 2021-02-01 | 2022-05-24 | 青岛市产品质量监督检验研究院 | Current transformer structure based on magnetic field coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20180328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |