CN202513020U - Electronic type current transformer - Google Patents
Electronic type current transformer Download PDFInfo
- Publication number
- CN202513020U CN202513020U CN201220072538XU CN201220072538U CN202513020U CN 202513020 U CN202513020 U CN 202513020U CN 201220072538X U CN201220072538X U CN 201220072538XU CN 201220072538 U CN201220072538 U CN 201220072538U CN 202513020 U CN202513020 U CN 202513020U
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- China
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- wire
- voltage
- secondary coil
- signal
- out wire
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Abstract
The utility model discloses an electronic type current transformer, which comprises a transformer shell which is subjected to the injection molding of epoxy resin, wherein a high-voltage wire switching-in wire rank and a high-voltage wire switching-out wire rank are solidified on the top of the shell; the high-voltage wire switching-in wire rank and the high-voltage wire switching-out wire rank are fixedly connected to a high-voltage primary coil inside the shell respectively; a low-voltage secondary coil is buckled on the high-voltage primary coil vertically; an iron core is formed inside the secondary coil; a signal lead-out wire is connected to the secondary coil; a thick film resistor is connected in series to the signal lead-out wire; and the signal lead-out wire is fixedly connected to a signal lead-out plug at the lower end of the transformer shell. The electronic type current transformer has the characteristics of high output sensitivity, matured technology, stable performance, easiness in batch production and the like.
Description
Technical field
The utility model belongs to a kind of current transformer, the digital protection device that particularly is the basis with the low-power coil.
Background technology
Adopting the dry electronic formula current transformer of epoxy resin cure technology is a kind of new transformer of developing for intelligent power station; Because be output as the small voltage signal of several volts; Greatly satisfied the digitized demand of secondary device, can realize directly and the computer networking.Because intelligent power station engineering country has just begun to carry out; Various power equipments are all upgrading; But all equipment can not settle Change All at one go, and certain continuity must be arranged, and the utility model is suitable for this situation just and develops; Can satisfy the needs in intelligent power station, keep the profile and the installation dimension of former conventional current instrument transformer again.
The utility model content
The utility model provides a kind of dry electronic formula current transformer of epoxy resin cure technology, can realize the measurement to the great dynamic range electric current.
The utility model technical solution problem provides following scheme:
A kind of electronic current mutual inductor; The instrument transformer housing that comprises the epoxy resin injection mo(u)lding; It is characterized in that: the top of said housing is solidified with high-voltage line tie-in line row and high-voltage line leading-out wire row, and the high pressure primary winding that said high-voltage line inserts, leading-out wire row is fastened on enclosure interior respectively vertically is buckled with the low pressure secondary coil mutually on the said high pressure primary winding; The inside of said secondary coil is provided with iron core; Be connected with signal on the said secondary coil and draw lead, said signal is drawn the thick-film resistor that is connected in series on the lead, and said signal is drawn lead and connected the signal be fixedly mounted on instrument transformer housing lower end and draw plug.
The bottom of said instrument transformer housing is provided with pre-buried inserts, and said pre-buried inserts is installed in through bolt and installs on the base plate.
The instrument transformer case top of the utility model is provided with high-voltage line tie-in line row; High-voltage line inserts from line bank, and the electric current high pressure primary winding of flowing through produces the highfield; Induction is faint in secondary coil goes out electric current; Being converted into because be output as the small voltage signal of several volts through thick-film resistor, greatly satisfied the digitized demand of secondary device, can realize directly and the computer networking.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing; A kind of electronic current mutual inductor comprises that the instrument transformer housing 1 of epoxy resin injection mo(u)lding, the top of said housing 1 are solidified with high-voltage line tie-in line row 2 and high-voltage line leading-out wire row 3; The high pressure primary winding 4 that said high-voltage line inserts, leading-out wire row 2,3 is fastened on housing 1 inside respectively; Vertically be buckled with low pressure secondary coil 5 on the said high pressure primary winding 4 mutually, the inside of said secondary coil 5 is provided with iron core 6, is connected with signal on the said secondary coil 5 and draws lead 7; Said signal is drawn the thick-film resistor 8 that is connected in series on the lead 7; Said signal is drawn lead 7 and is connected the signal that is fixedly mounted on instrument transformer housing 1 lower end and draw plug 9, and the bottom of said instrument transformer housing 1 is provided with pre-buried inserts 10, and said pre-buried inserts 10 is fixedly mounted on through bolt 11 and installs on the base plate 12.
Claims (2)
1. electronic current mutual inductor; The instrument transformer housing that comprises the epoxy resin injection mo(u)lding; It is characterized in that: the top of said housing is solidified with high-voltage line tie-in line row and high-voltage line leading-out wire row, and the high pressure primary winding that said high-voltage line inserts, leading-out wire row is fastened on enclosure interior respectively vertically is buckled with the low pressure secondary coil mutually on the said high pressure primary winding; The inside of said low pressure secondary coil is provided with iron core; Be connected with signal on the said secondary coil and draw lead, said signal is drawn the thick-film resistor that is connected in series on the lead, and said signal is drawn lead and connected the signal be fixedly mounted on instrument transformer housing lower end and draw plug.
2. according to the said electronic current mutual inductor of claim 1, it is characterized in that: the bottom of said instrument transformer housing is provided with pre-buried inserts, and said pre-buried inserts is installed in through bolt and installs on the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220072538XU CN202513020U (en) | 2012-02-29 | 2012-02-29 | Electronic type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220072538XU CN202513020U (en) | 2012-02-29 | 2012-02-29 | Electronic type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513020U true CN202513020U (en) | 2012-10-31 |
Family
ID=47065484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220072538XU Expired - Fee Related CN202513020U (en) | 2012-02-29 | 2012-02-29 | Electronic type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITFI20130157A1 (en) * | 2013-07-03 | 2015-01-04 | Lef S R L | AN AMPEROMETRIC TRANSFORMER (T.A.) WITH QUICK CONNECTION |
-
2012
- 2012-02-29 CN CN201220072538XU patent/CN202513020U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITFI20130157A1 (en) * | 2013-07-03 | 2015-01-04 | Lef S R L | AN AMPEROMETRIC TRANSFORMER (T.A.) WITH QUICK CONNECTION |
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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: 20121031 Termination date: 20180229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |