CN207281151U - A kind of device for reducing current transformer test loop inductance - Google Patents
A kind of device for reducing current transformer test loop inductance Download PDFInfo
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- CN207281151U CN207281151U CN201721349116.1U CN201721349116U CN207281151U CN 207281151 U CN207281151 U CN 207281151U CN 201721349116 U CN201721349116 U CN 201721349116U CN 207281151 U CN207281151 U CN 207281151U
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- metal connecting
- conductive layer
- loop inductance
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Abstract
The application provides a kind of device for reducing current transformer test loop inductance, including：First support, metal connecting sheet and second support；First support is connected with metal connecting sheet one end；Second support is connected with the metal connecting sheet other end；First support is provided with insulating layer close to the side of metal connecting sheet；Side of the first support away from metal connecting sheet is provided with the first conductive layer；Side of the second support away from metal connecting sheet is provided with the second conductive layer；Second support is provided with the 3rd conductive layer close to the side of metal connecting sheet.Electric current is flowed into from the second conductive layer of the second support away from metal connecting sheet side, the 3rd conductive layer and metal connecting sheet through second support close to metal connecting sheet side successively, finally from first conductive layer outflow of the first support away from metal connecting sheet side, effectively reduce loop area, reduce loop inductance, the output power of second largest current output device is reduced, reduces cost.
Description
Technical field
This application involves field of power, more particularly to a kind of device for reducing current transformer test loop inductance.
Background technology
Current transformer is measurement original paper more commonly used and important in electric system, abbreviation CT or AT, Live wires road
In, size of current differs greatly, and from several amperes to tens of thousands of amperes etc., is needed for ease of the measurement of instrument, instrument by high current
Low current is converted to, if the electric current of directly measurement High-current output equipment will give people to bring the danger of high degree, Current Mutual Inductance
The effect of device is that the larger primary current of numerical value is changed into the less secondary current of numerical value, such as the Current Mutual Inductance that no-load voltage ratio is 400/5
Device can be changed into the actual electric current for 400A in the electric current of 5A.
Conversion of the current transformer to electric current, which needs to export by wiring, to be realized, as shown in Figure 1 traditional current transformer
Termination, including：First twisted-pair feeder 2 and the first lasso 5；First twisted-pair feeder 2 is connected with the first lasso 5；Twisted-pair feeder 2 includes the
One electric current input line 3 and the first current output line 4；First electric current input line, 3 one end is connected with 4 one end of the first current output line.
During use, 3 other end of the first electric current input line is connected with 1 one end of the first busbar；First current output line, 4 other end with
First busbar, 1 other end connects；First High-current output equipment 6 is connected with the one end of twisted-pair feeder 2 away from the first busbar 1；First
Current transformer 7 is connected by lasso 5 with the first busbar 1.
Conventional current mutual inductor interstar connection device is in the process of conversion electric current, and the electric current of the first High-current output equipment 6 is from the
One electric current input line 3 flow to 1 one end of the first busbar, and it is big with the first current output line 4 to flow to first by 1 other end of the first busbar
Current output device 6, forms closed circuit, produces larger loop area.The size of loop inductance and the loop area that is formed into
Direct ratio, since loop area is larger, cause produce loop inductance it is larger, larger loop inductance will cause High-current output equipment
Output power increases, energy consumption increase, converts the cost increase of electric current.
Utility model content
This application provides a kind of device for reducing current transformer test loop inductance, to solve conventional current mutual inductor
For termination in the process of conversion electric current, it is female that the electric current of the first High-current output equipment 6 from the first electric current input line 3 flow to first
1 one end of line, by 1 other end of the first busbar, the first current output line 4 flow to the first High-current output equipment 6, and formation closes back
Road, produces larger loop area.The size of loop inductance is directly proportional to the loop area formed, since loop area is larger, leads
Cause the loop inductance of generation larger, larger loop inductance will cause High-current output equipment output power to increase, and energy consumption increase, becomes
Change the cost increase of electric current.
The application provides a kind of device for reducing current transformer test loop inductance, including：First support, metal connection
Piece and second support；
First support and second support are cyclic structures；
First support is connected with metal connecting sheet one end；
Second support is connected with the metal connecting sheet other end；
First support, metal connecting sheet and second support three form hollow cylindrical configuration；
First support is provided with insulating layer close to the side of metal connecting sheet；
Side of the first support away from metal connecting sheet is provided with the first conductive layer；
Side of the second support away from metal connecting sheet is provided with the second conductive layer；
Second support is provided with the 3rd conductive layer close to the side of metal connecting sheet.
Further, termination includes the second lasso, and the second lasso is connected with metal connecting sheet.
Further, the first slip-proofing device is provided with lasso.
Further, metal connecting sheet is laminated structure.
Further,
The second slip-proofing device is provided with the inside of first support；
The 3rd slip-proofing device is provided with the inside of second support.
Further, termination includes fixture, and fixture is connected with second support.
The beneficial effect of the application is：A kind of device for reducing current transformer test loop inductance, including：First
Frame, metal connecting sheet and second support；First support and second support are cyclic structures；First support and metal connecting sheet one end
Connection；Second support is connected with the metal connecting sheet other end；First support, metal connecting sheet and second support three form hollow
Tubular structure；First support is provided with insulating layer close to the side of metal connecting sheet；First support away from metal connecting sheet one
Side is provided with the first conductive layer；Side of the second support away from metal connecting sheet is provided with the second conductive layer；Second support is close
The side of metal connecting sheet is provided with the 3rd conductive layer.Electric current is conductive from second of second support away from 9 side of metal connecting sheet
Laminar flow enters, successively the 3rd conductive layer and metal connecting sheet through second support close to metal connecting sheet side, finally from first
First conductive layer outflow of the frame away from metal connecting sheet side, effectively reduces loop area, reduces loop inductance, reduce by second
The output power of High-current output equipment, reduces cost.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the conventional current mutual inductor interstar connection apparatus structure schematic diagram that the application provides；
Fig. 2 is a kind of structure diagram of the device for reduction current transformer test loop inductance that the application provides；
Fig. 3 is a kind of device current trend schematic diagram for reduction current transformer test loop inductance that the application provides；
Wherein, the first busbares of 1-, the first twisted-pair feeders of 2-, 3- the first electric current input lines, the first current output lines of 4-, 5- first
Lasso, 6- the first High-current output equipment, the first current transformers of 7-, 8- first supports, 9- metal connecting sheets, 10- second
Frame, the second busbares of 11-, the second twisted-pair feeders of 12-, 13- the second electric current input lines, the second current output lines of 14-, 15- fixtures, 16-
Second largest current output device, the second lassos of 17-, the second current transformers of 18-.
Embodiment
The application provides a kind of device for reducing current transformer test loop inductance, including：First support 8, metal connect
Contact pin 9 and second support 10；
First support 8 and second support 10 are cyclic structures；
First support 8 is connected with 9 one end of metal connecting sheet；
Second support 10 is connected with 9 other end of metal connecting sheet；
First support 8, metal connecting sheet 9 and 10 three of second support form hollow cylindrical configuration；
First support 8 is provided with insulating layer close to the side of metal connecting sheet 9；
Side of the first support 8 away from metal connecting sheet 9 is provided with the first conductive layer；
Side of the second support 10 away from metal connecting sheet 9 is provided with the second conductive layer；
Second support 10 is provided with the 3rd conductive layer close to the side of metal connecting sheet 9.
Electric current is flowed into from the second conductive layer of the second support 10 away from 9 side of metal connecting sheet, successively through second support 10
Close to the of the 3rd conductive layer of 9 side of metal connecting sheet, metal connecting sheet 9, first support 8 away from 9 side of metal connecting sheet
One conductive layer flows out, and effectively reduces loop area, reduces loop inductance, reduces the output work of second largest current output device 16
Rate, reduces cost.
Further, termination includes the second lasso 17, and the second lasso 17 is connected with metal connecting sheet 9.Lasso 17 will
Second current transformer 18 is connected with the second busbar 11, fixes the second current transformer 18.
Further, the first slip-proofing device is provided with lasso 17, strengthens 17 and second busbar of lasso, 11 contact friction force,
Lasso 17 is avoided to be slid from the second busbar 11.
Further, metal connecting sheet 9 is laminated structure, facilitates metal connecting sheet 6 to be contacted with the second busbar 11, further
Reduce the area between 9 and first busbar 11 of metal connecting sheet, and then reduce electric current followed by the second electric current input line 13, the
The loop area that two busbares 11 and 14 process of the second current output line are formed.
Further, the inner side of first support 8 is provided with the second slip-proofing device；
The inner side of second support 10 is provided with the 3rd slip-proofing device.
First support 8 is effectively fixed on the first busbar 11 by the setting of the second slip-proofing device, and the 3rd slip-proofing device is set
Put and second support 10 is effectively fixed on the first busbar 11, it is ensured that closed circuit is formed.
Further, termination includes fixture 15, and fixture 15 is connected with second support 10, and fixture 17 is defeated by the second electric current
Enter line 13 and be fixed on the first busbar 11, it is ensured that the electric current of second largest current output device 16 is from the first busbar 11 close to first support
8 one end flows into, and flows to second support 10, avoids the second electric current input line 13 from departing from the first busbar 11, ensures that stabilization is closed
Close the formation in circuit.
From above technical scheme, the application provides a kind of device for reducing current transformer test loop inductance, bag
Include：First support, metal connecting sheet and second support；First support and second support are cyclic structures；First support and metal
Connection sheet one end connects；Second support is connected with the metal connecting sheet other end；First support, metal connecting sheet and second support three
Person forms hollow cylindrical configuration；First support is provided with insulating layer close to the side of metal connecting sheet；First support is away from metal
The side of connection sheet is provided with the first conductive layer；Side of the second support away from metal connecting sheet is provided with the second conductive layer；The
Two stents are provided with the 3rd conductive layer close to the side of metal connecting sheet.Electric current is from second support away from 9 side of metal connecting sheet
The second conductive layer flow into, the 3rd conductive layer and metal connecting sheet through second support close to metal connecting sheet side successively, most
Afterwards from first conductive layer outflow of the first support away from metal connecting sheet side, loop area is effectively reduced, reduces circuit electricity
Sense, reduces the output power of second largest current output device, reduces cost.
Claims (6)
- A kind of 1. device for reducing current transformer test loop inductance, it is characterised in that including：First support (8), metal connect Contact pin (9) and second support (10)；The first support (8) and the second support (10) are cyclic structures；The first support (8) is connected with the metal connecting sheet (9) one end；The second support (10) is connected with the metal connecting sheet (9) other end；The first support (8), the metal connecting sheet (9) and the second support (10) three form hollow cylindrical configuration；The first support (8) is provided with insulating layer close to the side of the metal connecting sheet (9)；Side of the first support (8) away from the metal connecting sheet (9) is provided with the first conductive layer；Side of the second support (10) away from the metal connecting sheet (9) is provided with the second conductive layer；The second support (10) is provided with the 3rd conductive layer close to the side of the metal connecting sheet (9).
- 2. a kind of device for reducing current transformer test loop inductance as claimed in claim 1, it is characterised in that wiring fills Put and be connected including the second lasso (17), second lasso (17) with the metal connecting sheet (9).
- A kind of 3. device for reducing current transformer test loop inductance as claimed in claim 2, it is characterised in that the set The first slip-proofing device is provided with circle (17).
- A kind of 4. device for reducing current transformer test loop inductance as claimed in claim 1, it is characterised in that the metal Connection sheet (9) is laminated structure.
- A kind of 5. device for reducing current transformer test loop inductance as claimed in claim 1, it is characterised in thatThe second slip-proofing device is provided with the inside of the first support (8)；The 3rd slip-proofing device is provided with the inside of the second support (10).
- 6. reducing the device of current transformer test loop inductance as Claims 1-4 any one of them is a kind of, its feature exists In termination includes fixture (15), and the fixture (15) is connected with the second support (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721349116.1U CN207281151U (en) | 2017-10-17 | 2017-10-17 | A kind of device for reducing current transformer test loop inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721349116.1U CN207281151U (en) | 2017-10-17 | 2017-10-17 | A kind of device for reducing current transformer test loop inductance |
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| Publication Number | Publication Date |
|---|---|
| CN207281151U true CN207281151U (en) | 2018-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721349116.1U Active CN207281151U (en) | 2017-10-17 | 2017-10-17 | A kind of device for reducing current transformer test loop inductance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505492A (en) * | 2017-10-17 | 2017-12-22 | 云南电网有限责任公司电力科学研究院 | A kind of device for reducing current transformer test loop inductance |
-
2017
- 2017-10-17 CN CN201721349116.1U patent/CN207281151U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107505492A (en) * | 2017-10-17 | 2017-12-22 | 云南电网有限责任公司电力科学研究院 | A kind of device for reducing current transformer test loop inductance |
| CN107505492B (en) * | 2017-10-17 | 2023-10-13 | 云南电网有限责任公司电力科学研究院 | Device for reducing inductance of current transformer test loop |
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