CN102881438A - Electronic current transformer matched with low-voltage circuit breaker - Google Patents
Electronic current transformer matched with low-voltage circuit breaker Download PDFInfo
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- CN102881438A CN102881438A CN2012103430360A CN201210343036A CN102881438A CN 102881438 A CN102881438 A CN 102881438A CN 2012103430360 A CN2012103430360 A CN 2012103430360A CN 201210343036 A CN201210343036 A CN 201210343036A CN 102881438 A CN102881438 A CN 102881438A
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- Prior art keywords
- circuit breaker
- low
- amorphous core
- voltage circuit
- current transformer
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Links
- 238000010276 construction Methods 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- WBLJAACUUGHPMU-UHFFFAOYSA-N copper platinum Chemical compound [Cu].[Pt] WBLJAACUUGHPMU-UHFFFAOYSA-N 0.000 claims description 3
- 239000011162 core material Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
- Regulation Of General Use Transformers (AREA)
Abstract
The invention discloses an electronic current transformer matched with a low-voltage circuit breaker. The electronic current transformer consists of an amorphous core, a high-precision resistor, a shielding structure and a plastic housing. A circular transformer main body is arranged on the plastic housing with mounting holes. The amorphous core is arranged in the transformer main body. A coil is wound on the amorphous core. An insulating layer is arranged outside the coil. The shielding structure is arranged outside the insulating layer. A signal output line penetrates through the shielding structure, is connected with the positive and negative poles of a wire wound on the amorphous core respectively, and is a twisted shielding pair. The electronic current transformer is stable in performance, compact in structure and applicable to an intelligent new energy system, and particularly can be directly matched with the low-voltage circuit breaker.
Description
Technical field
The present invention relates to new forms of energy intelligent electric minor current transformer, especially relate to the supporting electronic current mutual inductor of using of low-voltage circuit breaker.
Background technology
Along with the develop rapidly of electronic technology, microcomputer type relay protection and intellectual ammeter have progressively occupied leading position, in relaying protection and measuring, and the energy flow of control section and separate from information flow, thereby monitoring equipment no longer needs the instrument transformer of high-power output; Simultaneously because the application of fast development, the integrated automation of transformation stations, power distribution automation and the new energy resources system of power industry, the frequency band of traditional electromagnetic current transducer is narrow, the shortcoming of low-response is more and more obvious, and existing electronic mutual inductor can not directly support the use with low-voltage circuit breaker, develops therefore that a kind of energy consumption is low, the low-voltage circuit breaker of stable performance is supporting extremely urgent with electronic current mutual inductor.
Summary of the invention
Purpose of the present invention just provides that a kind of energy consumption is low, the supporting electronic current mutual inductor of using of the low-voltage circuit breaker of stable performance.
The object of the present invention is achieved like this: low-voltage circuit breaker is supporting to be comprised of shielding construction, precision resister, amorphous core and plastic casing with electronic current mutual inductor, it is characterized in that: be provided with current transformer body on the plastic casing with installing hole, current transformer body is toroidal; Be provided with amorphous core in the described current transformer body, be wound with coil on the amorphous core, described coil is outside equipped with insulating barrier, and insulating barrier is outside equipped with shielding construction; Described output line passes from shielding construction respectively with around amorphous core upper conductor both positive and negative polarity and links to each other, and described output line is twisted-pair shielded wire.
Further, be parallel with high precision resistance on the described amorphous core coil; Coil elder generation bi-directional symmetrical coiling one deck on the described amorphous core do inner shield usefulness, and then coiling is complete clockwise; Described shielding construction is the dual shield structure that is formed by copper braid over braid and the coiling of semiconductive crimped paper intersection; Be embedded with copper platinum in the described shielding construction outermost layer current transformer body.
The present invention adopts the amorphous core material to do protected level; adopt internal coil bi-directional symmetrical coiling screen method; eliminate influence of magnetic field; and the coil special process such as copper braid over braid and semiconductive crimped paper dual shield; so that this product is highly stable on performance; in the situation that temperature and curent change, its error is very little.Compact conformation of the present invention, stable performance applies in the intelligent new energy resources system, especially can directly support the use with low-voltage circuit breaker.
Description of drawings
Fig. 1 is structural representation of the present invention.
Among the figure 1, installing hole, 2, current transformer body, 3, insulating barrier, 4, shielding construction, 5, precision resister, 6, amorphous core, 7, output line, 8, plastic casing.
Embodiment
Below in conjunction with accompanying drawing invention is described further:
Low-voltage circuit breaker is supporting to be comprised of shielding construction 4, precision resister 5, amorphous core 6 and plastic casing 8 with electronic current mutual inductor, it is characterized in that: be provided with current transformer body 2 on the plastic casing 8 with installing hole 1, current transformer body 2 is toroidal; Be provided with amorphous core 6 in the described current transformer body 2, be wound with coil on the amorphous core 6, described coil is outside equipped with insulating barrier 3, and insulating barrier 3 is outside equipped with shielding construction 4; Described output line 7 passes from shielding construction 4 respectively with around amorphous core 6 upper conductor both positive and negative polarities and links to each other, and described output line 7 is twisted-pair shielded wire.
As preferably, be parallel with high precision resistance 5 on described amorphous core 6 coils, thereby can not produce high voltage during the current transformer open circuit, fundamentally eliminate the significant trouble hidden danger in the power system operation, farthest ensure the safety of personnel and equipment; Described shielding construction 4 is the dual shield structures that formed by copper braid over braid and the coiling of semiconductive crimped paper intersection, and shield effectiveness is good, and is highly stable on the performance; Be embedded with copper platinum in the described shielding construction 4 outermost layer current transformer body 2, utilize capacity ratio to produce voltage signal, do signal and process usefulness, increased the function of product.
Claims (5)
1. the supporting electronic current mutual inductor of using of low-voltage circuit breaker, formed by shielding construction 4, precision resister 5, amorphous core 6 and plastic casing 8, it is characterized in that: be provided with current transformer body 2 on the plastic casing 8 with installing hole 1, current transformer body 2 is toroidal; Be provided with amorphous core 6 in the described current transformer body 2, be provided with coil on the amorphous core 6, described coil is outside equipped with insulating barrier 3, and insulating barrier 3 is outside equipped with shielding construction 4; Described output line 7 passes from shielding construction 4 respectively with around amorphous core 6 upper conductor both positive and negative polarities and links to each other, and described output line 7 is twisted-pair shielded wire.
2. the supporting electronic current mutual inductor of using of low-voltage circuit breaker according to claim 1 is characterized in that: be parallel with high precision resistance 5 on described amorphous core 6 coils.
3. the supporting electronic current mutual inductor of using of low-voltage circuit breaker according to claim 1 is characterized in that:
Coil elder generation bi-directional symmetrical coiling one deck on the described amorphous core 6 do inner shield usefulness, and then coiling is complete clockwise.
4. the supporting electronic current mutual inductor of using of low-voltage circuit breaker according to claim 1 is characterized in that: described shielding construction 4 is to intersect the dual shield structure that coiling forms by copper braid over braid and semiconductive crimped paper.
5. the supporting electronic current mutual inductor of using of low-voltage circuit breaker according to claim 1 is characterized in that: be embedded with copper platinum in the described shielding construction 4 outermost layer current transformer body 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210343036.0A CN102881438B (en) | 2012-09-17 | 2012-09-17 | The supporting electronic current mutual inductor of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210343036.0A CN102881438B (en) | 2012-09-17 | 2012-09-17 | The supporting electronic current mutual inductor of low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102881438A true CN102881438A (en) | 2013-01-16 |
| CN102881438B CN102881438B (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210343036.0A Active CN102881438B (en) | 2012-09-17 | 2012-09-17 | The supporting electronic current mutual inductor of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN102881438B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996511A (en) * | 2014-05-09 | 2014-08-20 | 安庆天瑞新材料科技股份有限公司 | Miniaturization current transformer capable of generating power supply by itself |
| CN105575643A (en) * | 2016-02-29 | 2016-05-11 | 济南铂晶电子科技有限公司 | Three-phase current transformer |
| CN105826000A (en) * | 2016-05-17 | 2016-08-03 | 江苏靖江互感器厂有限公司 | Straight-through electron type current transformer for intelligent C-GIS |
| CN109830409A (en) * | 2019-01-18 | 2019-05-31 | 杭州科丰电子股份有限公司 | A kind of breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117421Y (en) * | 2007-08-22 | 2008-09-17 | 熊江咏 | Low-voltage electronic type current mutual inductor |
| CN201435302Y (en) * | 2009-06-03 | 2010-03-31 | 河北申科电子股份有限公司 | Current mutual inductor for voltage output |
| CN201489999U (en) * | 2009-06-09 | 2010-05-26 | 深圳市创银实业有限公司 | High-linearity precise current transformer with fixing device |
| CN102129909A (en) * | 2010-01-18 | 2011-07-20 | 华云逸力(北京)光纤传感技术有限公司 | Low-power consumption electronic current transformer |
| CN202871548U (en) * | 2012-09-17 | 2013-04-10 | 熊江咏 | Electric type current mutual inductor matched with low-voltage circuit breaker |
-
2012
- 2012-09-17 CN CN201210343036.0A patent/CN102881438B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201117421Y (en) * | 2007-08-22 | 2008-09-17 | 熊江咏 | Low-voltage electronic type current mutual inductor |
| CN201435302Y (en) * | 2009-06-03 | 2010-03-31 | 河北申科电子股份有限公司 | Current mutual inductor for voltage output |
| CN201489999U (en) * | 2009-06-09 | 2010-05-26 | 深圳市创银实业有限公司 | High-linearity precise current transformer with fixing device |
| CN102129909A (en) * | 2010-01-18 | 2011-07-20 | 华云逸力(北京)光纤传感技术有限公司 | Low-power consumption electronic current transformer |
| CN202871548U (en) * | 2012-09-17 | 2013-04-10 | 熊江咏 | Electric type current mutual inductor matched with low-voltage circuit breaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996511A (en) * | 2014-05-09 | 2014-08-20 | 安庆天瑞新材料科技股份有限公司 | Miniaturization current transformer capable of generating power supply by itself |
| CN105575643A (en) * | 2016-02-29 | 2016-05-11 | 济南铂晶电子科技有限公司 | Three-phase current transformer |
| CN105826000A (en) * | 2016-05-17 | 2016-08-03 | 江苏靖江互感器厂有限公司 | Straight-through electron type current transformer for intelligent C-GIS |
| CN109830409A (en) * | 2019-01-18 | 2019-05-31 | 杭州科丰电子股份有限公司 | A kind of breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102881438B (en) | 2016-04-20 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160901 Address after: 214500 Zhenjiang City, Jingjiang Province, Taizhou, West to Ping Road, No. 23, No. Patentee after: Jingjiang Jiangsu mutual inductor Limited by Share Ltd Address before: 214500, No. 8, Zhenjiang Ping Road, west of Jiangsu, Taizhou, Jingjiang Patentee before: Xiong Jiangyong |