CN209232574U - A kind of anti-DC current transformer - Google Patents
A kind of anti-DC current transformer Download PDFInfo
- Publication number
- CN209232574U CN209232574U CN201821916730.6U CN201821916730U CN209232574U CN 209232574 U CN209232574 U CN 209232574U CN 201821916730 U CN201821916730 U CN 201821916730U CN 209232574 U CN209232574 U CN 209232574U
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- CN
- China
- Prior art keywords
- coil
- current transformer
- level
- saturation
- mutual inductor
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- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a kind of anti-DC current transformers, the current transformer is made of the mutual inductor coil of thtee-stage shiplock, the first order is anti-saturation coil, the second level is fast saturable inductor, the equal turn numbers of two groups of wound core coilings, the third level is c-type inductance coil, and the ratio of two-stage coil is poor before compensation reduces；The production is simple and convenient for the utility model, it is at low cost, it is made of the mutual inductor coil of anti-saturation coil, fast saturable inductor and c-type inductance coil three-level parallel series, efficient stable power transformation performance is realized by the first order and second level mutual inductor coil, certain inductance is added by c-type inductance coil again, compensation reduces the ratio difference and angular difference of current transformer, stablizes the measuring accuracy of current transformer more precisely.
Description
Technical field
The utility model relates to a kind of anti-DC current transformers.
Background technique
Current transformer is a kind of electronic equipment that high current can be become to low current, and metering or protection for electricity are set
Standby system.Current transformer is usually poor there are certain ratio and angular difference will affect electricity when the error than difference and angular difference is excessive
The precision of metering and the measurement of current transformer, therefore control drop need to be carried out by complicated calculating and mechanism contrast differences and angular difference
It is low.
Summary of the invention
For overcome the deficiencies in the prior art, the utility model provide it is a kind of have compensation reduce it is anti-more straight than difference and angular difference
Galvanic electricity current transformer.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of anti-DC current transformer, it is characterised in that: the current transformer is made of the coil of thtee-stage shiplock, the
Level-one is anti-saturation coil, and the second level is fast saturable inductor, and the equal turn numbers of two groups of coil windings realize the function of current transformer
Can, the third level is c-type inductance coil, the ratio difference and angular difference that two-stage mutual inductor coil is formed before compensating.
The coil of the three-level can be overlapped or be arranged in juxtaposition.
The magnetic core of the anti-saturation coil is made of anti-saturation material.
The magnetic core of the speed saturable inductor is made of fast saturated material.
The coil windings of the three-level are one circle of punching or multiple circle.
The beneficial effects of the utility model are: the utility model is realized efficiently by the first order and second level mutual inductor coil
Stablize power transformation performance, then certain inductance is added by c-type inductance coil, the ratio that two-stage coil is formed before automatic compensation reduces
Difference and angular difference, stablize the measuring accuracy of current transformer more precisely, and structure is simple, easy to make, at low cost.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the principles of the present invention figure.
Specific embodiment
A kind of anti-DC current transformer referring to Fig.1, the current transformer are composed in series by three-level coil, the first order
For anti-saturation coil 1, core material is anti-saturation material, such as: cold-rolled orientation silicon steel piece, the second level are fast saturable inductor 2, magnetic core
Material is fast saturated material, and such as: iron-base nanometer crystal alloy, the equal turn numbers of two groups of wound core coilings realize efficient stable
Power transformation performance, the third level are c-type inductance coil 3, and inductance the number of turns certain the number of turns of coiling according to the actual situation is debugged in mutual inductor
When, certain inductance is added, the ratio difference and angular difference that two-stage coil is formed before automatic compensation reduces make the metering of current transformer
Precision is more precisely stablized, and error meets 0.2S/2 grades of requirement.
The coil of the utility model is one circle of punching, but when no-load voltage ratio is less than 100/5A, can carry out multiple circle.
Further three-level coil can be overlapped or be arranged in juxtaposition, and meet the shape of the existing regulation of national grid, and production is simple
It is convenient, it is at low cost.
The utility model structure is simple, easy to make, at low cost, and meets the existing regulation of national grid and error is wanted
It asks, the occasion suitable for various electric quantity meterings.
Claims (5)
1. a kind of anti-DC current transformer, it is characterised in that: the current transformer is made of the coil of thtee-stage shiplock, and first
Grade is anti-saturation coil (1), and the second level is fast saturable inductor (2), and the equal turn numbers of two groups of coil windings, the third level is c-type electricity
Feel coil (3), the ratio difference and angular difference that two-stage mutual inductor coil is formed before compensating.
2. current transformer according to claim 1, it is characterised in that: coil described in three-level can be overlapped or be arranged in juxtaposition.
3. current transformer according to claim 1, it is characterised in that: the magnetic core of the anti-saturation coil (1) is by anti-full
It is made with material.
4. current transformer according to claim 1, it is characterised in that: the magnetic core of the speed saturable inductor (2) is full by speed
It is made with material.
5. current transformer according to claim 1, it is characterised in that: the winding of coil described in three-level is one circle of punching
Or multiple circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916730.6U CN209232574U (en) | 2018-11-19 | 2018-11-19 | A kind of anti-DC current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821916730.6U CN209232574U (en) | 2018-11-19 | 2018-11-19 | A kind of anti-DC current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209232574U true CN209232574U (en) | 2019-08-09 |
Family
ID=67503723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821916730.6U Expired - Fee Related CN209232574U (en) | 2018-11-19 | 2018-11-19 | A kind of anti-DC current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209232574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098040A (en) * | 2018-11-19 | 2019-08-06 | 何排枝 | A kind of anti-DC current transformer |
-
2018
- 2018-11-19 CN CN201821916730.6U patent/CN209232574U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110098040A (en) * | 2018-11-19 | 2019-08-06 | 何排枝 | A kind of anti-DC current transformer |
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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: 20190809 |