CN103515079A - Novel electronic current transformer - Google Patents
Novel electronic current transformer Download PDFInfo
- Publication number
- CN103515079A CN103515079A CN201210208093.8A CN201210208093A CN103515079A CN 103515079 A CN103515079 A CN 103515079A CN 201210208093 A CN201210208093 A CN 201210208093A CN 103515079 A CN103515079 A CN 103515079A
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- current transformer
- novel electronic
- electronic current
- diverter
- free
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- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The invention discloses a novel electronic current transformer which comprises a body and an insulator chain installed on the body in a wound mode. The novel electronic current transformer is characterized in that a resistance current diverter is arranged in the body, one end of the resistance current diverter is connected with a high voltage input end, and the other end of the resistance current diverter is connected with a low voltage output end. Compared with a traditional electromagnetic current transformer, the novel electronic current transformer has the advantages of being free of core insulation, simple and reliable in structure, small in volume, low in weight, good in linearity, large in dynamic range, free of saturation phenomenon and the like. Output signals can be directly connected with computerization measurement and protection equipment.
Description
Technical field
The present invention relates to a kind of new-style electronic current transformer, belong to electronic device field.
Background technology
Now electric power system is mostly used electromagnetic current transducer to measure primary current, and secondary provides current signal for equipment such as metering, control, protections, and its general output is 5A or 1A.Along with the increase of electric pressure raising and transmission capacity, electromagnetic current transducer presents following shortcoming: 1, insulation system is complicated, volume is large, cost is high; 2, dynamic range is little, and the harmonic wave transient signal of appearance easily makes protection produce misoperation, and the linearity is bad, when electric current is larger, there will be saturated phenomenon, affects second protection equipment and correctly identifies fault; 3, output can not directly and Microcomputer measures and protection equipment interface; 4, easily produce ferro resonance, inflammable, explosive etc.
Summary of the invention
Technical problem solved by the invention is to provide a kind of ferro resonance hidden danger that do not exist, the new-style electronic current transformer that transient characterisitics are good.
The technical solution that realizes the object of the invention is:
A kind of new-style electronic current transformer, comprise body and install around the insulator string on body, it is characterized in that: in body interior, be provided with a divertor, one end of described divertor is connected with high voltage input terminal, and the other end is connected with low-voltage output.
The present invention compares with traditional electromagnetic current transducer, has that iron-core-free insulation system is simple and reliable, volume is little, lightweight, the linearity good, dynamic range is large, can be directly and the advantage such as Microcomputer metering and protection equipment interface without saturated phenomenon, output signal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the cutaway view of A-A in Fig. 1.
The implication of number in the figure representative is: 1. body, 2. insulator string, 3. high voltage input terminal, 4. low-voltage output, 5. divertor.
Embodiment
As shown in Figure 1, a current transformer, comprises body 1 and installs around the insulator string 2 on body 1, in body 1 inside, is provided with a divertor 5, one end of described divertor 5 is connected with high voltage input terminal 3, and the other end is connected with low-voltage output 4.
The present invention compares with traditional electromagnetic current transducer, has that iron-core-free insulation system is simple and reliable, volume is little, lightweight, the linearity good, dynamic range is large, can be directly and the advantage such as Microcomputer metering and protection equipment interface without saturated phenomenon, output signal.
Below schematically the present invention and execution mode thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiments of the present invention, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the invention aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection scope of the present invention.
Claims (1)
1. a new-style electronic current transformer, comprises body and installs around the insulator string on body, it is characterized in that; In body interior, be provided with a divertor, one end of described divertor is connected with high voltage input terminal, and the other end is connected with low-voltage output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208093.8A CN103515079A (en) | 2012-06-25 | 2012-06-25 | Novel electronic current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210208093.8A CN103515079A (en) | 2012-06-25 | 2012-06-25 | Novel electronic current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103515079A true CN103515079A (en) | 2014-01-15 |
Family
ID=49897636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210208093.8A Pending CN103515079A (en) | 2012-06-25 | 2012-06-25 | Novel electronic current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103515079A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147139A (en) * | 2016-08-13 | 2016-11-23 | 南通东源互感器制造有限公司 | A kind of epoxy resin insulation material for current transformer and preparation method thereof |
| CN109900946A (en) * | 2019-03-26 | 2019-06-18 | 山东联合电力技术有限公司 | A kind of shell mechanism of the electronic current mutual inductor based on electric resistance partial pressure |
-
2012
- 2012-06-25 CN CN201210208093.8A patent/CN103515079A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106147139A (en) * | 2016-08-13 | 2016-11-23 | 南通东源互感器制造有限公司 | A kind of epoxy resin insulation material for current transformer and preparation method thereof |
| CN109900946A (en) * | 2019-03-26 | 2019-06-18 | 山东联合电力技术有限公司 | A kind of shell mechanism of the electronic current mutual inductor based on electric resistance partial pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |