CN110098040A - A kind of anti-DC current transformer - Google Patents
A kind of anti-DC current transformer Download PDFInfo
- Publication number
- CN110098040A CN110098040A CN201811382595.6A CN201811382595A CN110098040A CN 110098040 A CN110098040 A CN 110098040A CN 201811382595 A CN201811382595 A CN 201811382595A CN 110098040 A CN110098040 A CN 110098040A
- Authority
- CN
- China
- Prior art keywords
- coil
- current transformer
- level
- saturation
- mutual inductor
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention 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 by the present invention, 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 present invention 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 present invention provides a kind of anti-direct current for having compensation and reducing than difference and angular difference
Current transformer.
The technical solution adopted by the present invention to solve the technical problems is:
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 present invention are: the present invention realizes efficient stable power transformation by the first order and second level mutual inductor coil
Performance, then certain inductance is added by c-type inductance coil, the ratio difference and angle that two-stage coil is formed before automatic compensation reduces
Difference stablizes the measuring accuracy of current transformer more precisely, and structure is simple, easy to make, at low cost.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the principle 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.
Coil of the invention 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.
It is the configuration of the present invention is simple, easy to make, it is at low cost, and meet the existing regulation of national grid and error requirements, it fits
Occasion 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: the three-level coil 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 coil windings of the three-level are one circle of punching
Or multiple circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382595.6A CN110098040A (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 |
|---|---|---|---|
| CN201811382595.6A CN110098040A (en) | 2018-11-19 | 2018-11-19 | A kind of anti-DC current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110098040A true CN110098040A (en) | 2019-08-06 |
Family
ID=67443641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811382595.6A Pending CN110098040A (en) | 2018-11-19 | 2018-11-19 | A kind of anti-DC current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110098040A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023028986A1 (en) * | 2021-09-03 | 2023-03-09 | Abb Schweiz Ag | Winding assembly and current transformer |
-
2018
- 2018-11-19 CN CN201811382595.6A patent/CN110098040A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023028986A1 (en) * | 2021-09-03 | 2023-03-09 | Abb Schweiz Ag | Winding assembly and current transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202661526U (en) | Coaxial double-loop magnetic core coil assembly for core-through type high precision closed-loop type Hall current sensor | |
| CN102360857B (en) | Integrated network distributing transformer with error compensating mutual inductor | |
| CN204269765U (en) | A kind of transformer for power frequency withstand test and test unit | |
| EP3232452B1 (en) | High-capacity three-phase combined type phase-shift transformer | |
| CN204422710U (en) | A kind of oil-immersed type testing transformer | |
| CN102969138B (en) | 0.2Ss grade special high-voltage metering current transformer | |
| CN110098040A (en) | A kind of anti-DC current transformer | |
| CN202189670U (en) | Combined current converter | |
| CN209232574U (en) | A kind of anti-DC current transformer | |
| CN108387860A (en) | A kind of electromagnetic current transducer and its error compensating method | |
| CN102403120A (en) | Transformer and winding method of transformer | |
| CN201004369Y (en) | Voltage adjusting transformer | |
| CN201263094Y (en) | Source-fetching device for I/P current | |
| CN201365193Y (en) | Compensation type high-current generation device | |
| CN111029118A (en) | High-voltage electromagnetic voltage proportion standard error compensation method | |
| CN201887715U (en) | Voltage transformer error regulating device | |
| CN203312022U (en) | Low-voltage direct-current-resisting current mutual inductor | |
| CN102800463A (en) | Current transformer | |
| CN111540574B (en) | Wide-range current transformer and manufacturing method thereof | |
| CN103268815A (en) | On-load voltage and capacitance regulated transformer | |
| CN107192974B (en) | Integrated voltage and current standard transformer | |
| CN202142406U (en) | Integrated network distribution transformer having error compensation mutual inductor | |
| CN103325556A (en) | Novel high voltage standard integrated voltage transformer | |
| CN207067376U (en) | Integration voltage current standard transformer | |
| CN204289041U (en) | A kind of clamping plate type transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |