CN202189670U - Combined current converter - Google Patents
Combined current converter Download PDFInfo
- Publication number
- CN202189670U CN202189670U CN2011202489921U CN201120248992U CN202189670U CN 202189670 U CN202189670 U CN 202189670U CN 2011202489921 U CN2011202489921 U CN 2011202489921U CN 201120248992 U CN201120248992 U CN 201120248992U CN 202189670 U CN202189670 U CN 202189670U
- Authority
- CN
- China
- Prior art keywords
- winding
- auxiliary
- auxiliary winding
- compensation
- coil
- 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
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a combined current converter mainly applied to a high voltage transformer, a high voltage combined electric appliance, as well as an independent current mutual inductor. The combined current converter comprises a primary winding, the primary winding perforates both a main coil and an auxiliary coil; a secondary winding and an auxiliary winding are wound on an iron core of the main coil; a secondary auxiliary winding is wound on an iron core of the auxiliary coil; the auxiliary winding and the secondary auxiliary winding are connected in parallel; a secondary load is led out from the secondary winding; the auxiliary winding can be one to two; and the auxiliary coil can realize magnetic shunt compensation, capacitance compensation, short-circuit turn compensation or the combination of the above. The utility model aims to provide the current converter to replace a conventional current mutual inductor, for solving the problems of low precision of current mutual inductor with small current and low loading capacity.
Description
Technical field
The present invention relates to the current transformer technical field, especially a kind of composite type power pack is used for the violent or little electric current AC electric power systems of load variations and makes current measurement, metering usefulness.
Background technology
Current transformer requires sensor accuracy very high as the senser element of electric current metering and relaying protection in the electric power system, measures the level coil and generally requires to use 0.2 grade even higher, and protected level generally requires 5P20 level even higher.Have in the practical application under a lot of situation, the very little or system loading of rated current changes violent, and at system loading hour, actual current is also very little, sometimes actual current 100A even littler only.Under this little current conditions, accomplish very difficulty of above-mentioned precision, particularly be applied to the current transformer in high-tension transformer, combined electrical apparatus and the high-low pressure circuit breaker, do not reach above-mentioned precision at all.Even if take conventional indemnifying measure, also only can accomplish 0.5 grade, and the load-bearing capacity of current transformer be very low, only can reach 5～10VA, has a strong impact on the serviceability of High-Voltage Electrical Appliances.
Summary of the invention
The objective of the invention is provides a kind of combined electrical alternating-current converter for overcoming above-mentioned technical disadvantages, is mainly used in the casing current transformer of high-tension transformer and high pressure combined electrical apparatus, also can be used for free-standing current transformer product.
The technical scheme that technical solution problem of the present invention adopts is: the composite type power pack; Comprise winding one time; A said winding passes main coil and ancillary coil simultaneously, coiling secondary winding and auxiliary winding on said main coil iron core, coiling time auxiliary winding on the ancillary coil iron core; Said auxiliary winding and time auxiliary winding parallel connection, said secondary winding is drawn secondary load.
Said auxiliary winding group number is selected 1～2 group.
Said ancillary coil is for selecting magnetic shunt compensation, capacitance compensation, short circuited turn compensation, turn compensation or its combination.
The beneficial effect that the present invention had is:
The invention provides a kind of power pack and replace traditional current transformer, it is low to solve little variable-current instrument transformer precision, the problem of load-bearing capacity difference, and the present invention is simple in structure, and is cheap for manufacturing cost.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is done following detailed description.
As shown in the figure, the present invention includes winding 4 one time, a said winding 4 passes main coil and ancillary coil simultaneously; Coiling secondary winding 2 and auxiliary winding 3 on said main coil iron core 1; Coiling time auxiliary winding 6 on ancillary coil iron core 5, said auxiliary winding 3 and time auxiliary winding 6 parallel connections, said secondary winding 2 is drawn secondary load; 3 groups of numbers of said auxiliary winding are selected 1～2 group, and said ancillary coil is magnetic shunt compensation, capacitance compensation, short circuited turn compensation, turn compensation or its combination.Adopt this structure, and in main coil and ancillary coil, adopt the suitable compensation measure, in actual production, the instrument transformer of 100/5A is brought up to 0.2 grade at the identical situation decline class of accuracy of specified output by 1 grade, obtained good effect.
Claims (3)
1. composite type power pack; It is characterized in that: comprise winding one time; A said winding passes main coil and ancillary coil simultaneously, coiling secondary winding and auxiliary winding on said main coil iron core, coiling time auxiliary winding on the ancillary coil iron core; Said auxiliary winding and time auxiliary winding parallel connection, said secondary winding is drawn secondary load.
2. composite type power pack according to claim 1 is characterized in that: said auxiliary winding group number is selected 1～2 group.
3. composite type power pack according to claim 1 is characterized in that: said ancillary coil is magnetic shunt compensation, capacitance compensation, short circuited turn compensation, turn compensation or its combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202489921U CN202189670U (en) | 2011-07-07 | 2011-07-07 | Combined current converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202489921U CN202189670U (en) | 2011-07-07 | 2011-07-07 | Combined current converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189670U true CN202189670U (en) | 2012-04-11 |
Family
ID=45921106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202489921U Expired - Fee Related CN202189670U (en) | 2011-07-07 | 2011-07-07 | Combined current converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189670U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360885A (en) * | 2011-07-07 | 2012-02-22 | 张逢春 | Combined current transformer |
| CN103366938A (en) * | 2013-08-02 | 2013-10-23 | 浙江正泰电源电器有限公司 | Compensation type current transformer |
| CN103606449A (en) * | 2013-11-13 | 2014-02-26 | 江苏靖江互感器厂有限公司 | High-precision current transformer |
| CN107765057A (en) * | 2017-09-26 | 2018-03-06 | 李颖 | A kind of improved two-stage current transformer |
| WO2021023115A1 (en) * | 2019-08-02 | 2021-02-11 | 登高电气有限公司 | Coil assembly of current transformer, and manufacturing method |
-
2011
- 2011-07-07 CN CN2011202489921U patent/CN202189670U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360885A (en) * | 2011-07-07 | 2012-02-22 | 张逢春 | Combined current transformer |
| CN103366938A (en) * | 2013-08-02 | 2013-10-23 | 浙江正泰电源电器有限公司 | Compensation type current transformer |
| CN103606449A (en) * | 2013-11-13 | 2014-02-26 | 江苏靖江互感器厂有限公司 | High-precision current transformer |
| CN107765057A (en) * | 2017-09-26 | 2018-03-06 | 李颖 | A kind of improved two-stage current transformer |
| WO2021023115A1 (en) * | 2019-08-02 | 2021-02-11 | 登高电气有限公司 | Coil assembly of current transformer, and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102360857B (en) | Integrated network distributing transformer with error compensating mutual inductor | |
| CN202189670U (en) | Combined current converter | |
| CN102709042B (en) | Current transformer | |
| CN202258772U (en) | Epoxy pouring totally-closed support type electronic combined transformer for centrally installed switchgear | |
| CN201075336Y (en) | Bipolarity multi-transformation ratio current mutual inductor | |
| CN102185388A (en) | Line induction energy collecting instantaneous high-power power supply for open super-capacitor energy storage | |
| CN102739066B (en) | Inductive current-to-voltage converter and method for measuring high frequency current | |
| CN107170571B (en) | Multi-stage voltage transformer | |
| CN103730240A (en) | Variable-flux voltage regulating auto transformer for maintaining constant low voltage | |
| CN102360885A (en) | Combined current transformer | |
| CN203312022U (en) | Low-voltage direct-current-resisting current mutual inductor | |
| CN203481031U (en) | High-voltage transformer | |
| CN202939271U (en) | Voltage transformer induction withstand voltage experiment connecting circuit based on third harmonic generator | |
| CN102360880B (en) | Ferroresonance-preventing self-power supply device of electronic voltage transformer | |
| CN201263094Y (en) | Source-fetching device for I/P current | |
| CN107167641A (en) | A kind of portable section metering device | |
| CN202142406U (en) | Integrated network distribution transformer having error compensation mutual inductor | |
| CN102800463A (en) | Current transformer | |
| CN209200942U (en) | A kind of simple charge power supply of three-phase and four-line combination transformer | |
| CN203607236U (en) | Ultrathin large current mutual inductor | |
| CN201673778U (en) | Multifunctional testing transformer | |
| CN203055652U (en) | Combined type mutual inductor | |
| CN201364356Y (en) | Cascade current sensor | |
| CN202084414U (en) | Combined-type zero sequence current mutual inductor | |
| CN201838436U (en) | Double-voltage oil-immersed transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20140707 |
|
| EXPY | Termination of patent right or utility model |