CN2562191Y - Rogowski coil current sensor - Google Patents
Rogowski coil current sensor Download PDFInfo
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- CN2562191Y CN2562191Y CN 02240194 CN02240194U CN2562191Y CN 2562191 Y CN2562191 Y CN 2562191Y CN 02240194 CN02240194 CN 02240194 CN 02240194 U CN02240194 U CN 02240194U CN 2562191 Y CN2562191 Y CN 2562191Y
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Abstract
The utility model relates to a Rogowski coil current sensor, which is characterized in that the sensor consists of an insulating material soft rod, a plurality of helix-shaped coils evenly convolving around the insulating material soft rod, an insulating protection layer (I), a screening layer (I) on the outer part of the insulating protection layer (I) and the insulating protection layer (II) on the upmost outer layer of the insulating protecting layer (I); wherein, the outside of the insulating material soft rod with the coils, the insulating protection layer (I), the screening layer (I) and the insulating protection layer (II) on the upmost outer layer is provided with a coil insulating protection sleeve. The coils and the screening layer are connected with each other in parallel on a lead wire on the same end of the insulating material soft rod. The utility model has the advantages that the novel current sensor adopts the Rogowski coil principle, and the novel current sensor has the advantages of wide application, the sound stability, sound linearity and high accuracy of outputting signal, insensitivity of the harmonic wave of an electric network, simple structure, small weight, convenient installation and wide application; furthermore, the utility model is widely used for the signal detection and data transmission of a measuring and microcomputer control system.
Description
(1) technical field:
The utility model relates to a kind of electronic sensor, particularly a kind of Luo-coil current sensor.
(2) background technology:
Traditional current sensor is owing to adopt ferromagnet, make that its volume is big, Heavy Weight, frequency band is narrow, the overcurrent multiple is little, the output terminal of current sensor can not be opened a way, and the secondary singal waveform distorts during magnetic saturation, even may have a strong impact on the safe operation of electrical network.Traditional Current Transformer Secondary output is generally the current signal of 0～5A, during to the electric equipment computer management, also needs the current signal of 0～5A is transformed into the normalized current signal of 4～20mA or 0～20mA, the conversion links in the middle of having increased.Rogowski coil theory can overcome the drawback of conventional current sensor, but present domestic its product industrialization that do not make as yet.
(3) summary of the invention:
The purpose of this utility model is to design a kind of Luo-coil current sensor, it is to adopt Rogowski coil principle to make the electronic current sensor, it can overcome the deficiency that traditional current transformer exists, having good performance, is the best substitute products of a kind of conventional current mutual inductor.
The technical solution of the utility model: a kind of Luo-coil current sensor, it is characterized in that it is made of the coil of the soft rod of insulating material, the multi-turn curl that twines equably on the soft rod of insulating material, insulating protective layer I, screen layer I and outermost insulating protective layer II in insulating protective layer I outside, the soft rod of insulating material of said belt coil, insulating protective layer I, screen layer I and outermost insulating protective layer II has the coil insulation protective jacket outward; Said coil and screen layer I are at the lead-in wire of the same end of the soft rod of insulating material and are connected in series.
The desirable soft plastic rod of the soft rod of above-mentioned said insulating material; the two ends of the soft rod of insulating material of said belt coil, insulating protective layer I, screen layer I, outermost insulating protective layer II and coil insulation protective sleeve can place in the coupling head housing; the soft excellent exterior loop insulation protection inner room of coupling head housing and insulating material has screen layer II, and said coil lead and screen layer I lead-in wire are signal lead.
Above-mentioned said coupling head housing can be the plug-in type coupling head.
It patches above-mentioned said plug-in type coupling head housing two ends and can make the elastic bayonet lock shape of being convenient to connect respectively.
Above-mentioned said coupling head housing has parameter setting system outward.
The screen layer I of the soft stick coil of above-mentioned said insulating material outside can be the conducting metal strip and evenly turns to omnidirectional winding coil.
Using method of the present utility model with principle of work is: this coil becomes closed hoop when using, said coil and screen layer I are serial connection at the lead-in wire of the same end of the soft rod of insulating material, other end coil lead and screen layer I go between as signal source, simultaneously, and screen layer I signal source lead-in wire ground connection.End with sensor is walked around tested major loop, inserts then in the coupling head housing bayonet socket of the other end, allows tested major loop pass in the closed hoop, can obtain required electric signal from the coil lead end.Rogowski coil output signal and tested current phase differ 90 °.When needing phase parameter, can in follow-up circuit, increase by an integrating amplifier and can obtain and the synchronous electric signal of tested electric current as measurement.The simulating signal that signals collecting partly collects becomes the discrete digital signal through the A/D conversion, inputs to data processor.Use one group of parameter setting system simultaneously, be combined into the scope of different detection electric currents, also input to data processor, behind the data processor routine processes signal data in accordance with regulations, output and the current signal that detects the corresponding 4～20mA of range of current.
Superiority of the present utility model is: the New type of current sensor that 1, adopts Rogowski coil principle, usable range is big, same sensor can detect arbitrary section current signal in 40～1000A scope, and output simultaneously is the current signal of corresponding 4～20mA with it; 2, the detection electric current is set conveniently,, just can be combined into the detection electric current of different range with the combination of different parameter setting systems; 3, the good stability of output signal, good linearity, precision height are insensitive to the harmonic wave of electrical network; 4, simple in structure, in light weight, be equivalent to 1/15 of conventional current mutual inductor; 5, easy for installation, signals collecting partly adopts the plug-in type butt joint, is integral with data processing, data output unit, adopts cluster to install, and has saved installing space; 6, be widely used, be widely used in metering and Control System of Microcomputer, make input and data transmission and use.
(4) description of drawings:
Accompanying drawing 1 is the overall appearance structure and the user mode synoptic diagram of the related a kind of Luo-coil current sensor of the utility model.
Accompanying drawing 2 is the Luo-coil one-piece construction synoptic diagram of the related a kind of Luo-coil current sensor of the utility model.
Accompanying drawing 3 cuts open structural representation for the Luo-coil office of the related a kind of Luo-coil current sensor of the utility model.
Accompanying drawing 4 is the Luo-coil coupling head structural representation of the related a kind of Luo-coil current sensor of the utility model.
Wherein: 1 is the coil insulation protective sleeve; 2 is the soft rod of insulating material, and 3 is coil, and 4 is screen layer I; 5 is insulating protective layer II; 6 are the coupling head housing, and 7 is signal lead, and 8 is screen layer II; 9 is insulating protective layer I; 10 is the two ends of Luo-coil, and 11 is Luo-coil, and 12 is parameter setting system.
(5) embodiment:
Embodiment: a kind of Luo-coil current sensor (seeing accompanying drawing), it is characterized in that it is made of the coil 3 of the soft multi-turn curl excellent 2, that twine equably on insulating material soft excellent 2 of insulating material, insulating protective layer I9, screen layer I4 and outermost insulating protective layer II5 in insulating protective layer I9 outside, the insulating material of said belt coil 3, insulating protective layer I9, screen layer I4 and outermost insulating protective layer II5 soft excellent 2 has coil insulation protective jacket 1 outward; Said coil 3 and screen layer I4 are at the lead-in wire of soft excellent 2 the same end of insulating material and are connected in series.
Above-mentioned said insulating material soft excellent 2 desirable soft plastic rods; soft excellent 2 the two ends 10 of insulating material of said belt coil 3, insulating protective layer I9, screen layer I4, outermost insulating protective layer II5 and coil insulation protective sleeve 1 can place in the coupling head housing 6; 1 of the soft excellent 2 exterior loop insulation protective jacket of coupling head housing 6 and insulating material have screen layer II8, and said coil 3 lead-in wires and screen layer I4 lead-in wire are signal lead 7.
Above-mentioned said coupling head housing 6 can be the plug-in type coupling head.
It patches above-mentioned said plug-in type coupling head housing 6 two ends and can make the elastic bayonet lock shape of being convenient to connect respectively.
Outside the above-mentioned said coupling head housing 6 parameter setting system 12 is arranged.
The screen layer I4 of soft excellent 2 the coil of above-mentioned said insulating material 3 outsides can be the conducting metal strip and evenly turns to omnidirectional winding coil.
Claims (6)
1, a kind of Luo-coil current sensor, it is characterized in that it is made of the coil of the soft rod of insulating material, the multi-turn curl that twines equably on the soft rod of insulating material, insulating protective layer I, screen layer I and outermost insulating protective layer II in insulating protective layer I outside, the soft rod of insulating material of said belt coil, insulating protective layer I, screen layer I and outermost insulating protective layer II has the coil insulation protective jacket outward; Said coil and screen layer I are at the lead-in wire of the same end of the soft rod of insulating material and are connected in series.
2, according to the said a kind of Luo-coil current sensor of claim 1; it is characterized in that the desirable soft plastic rod of the soft rod of said insulating material; the two ends of the soft rod of insulating material of said belt coil, insulating protective layer I, screen layer I, outermost insulating protective layer II and coil insulation protective sleeve can place in the coupling head housing; the soft excellent exterior loop insulation protection inner room of coupling head housing and insulating material has screen layer II, and said coil lead and screen layer I lead-in wire are signal lead.
3,, it is characterized in that said coupling head housing can be the plug-in type coupling head according to the said a kind of Luo-coil current sensor of claim 2.
4, according to the said a kind of Luo-coil current sensor of claim 3, it patches two ends and can make the elastic bayonet lock shape of being convenient to connect respectively to it is characterized in that said plug-in type coupling head housing.
5,, it is characterized in that said coupling head housing has parameter setting system outward according to the said a kind of Luo-coil current sensor of claim 2.
6, according to the said a kind of Luo-coil current sensor of claim 1, the screen layer I that it is characterized in that the soft stick coil of said insulating material outside can be the conducting metal strip and evenly turns to omnidirectional winding coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240194 CN2562191Y (en) | 2002-07-17 | 2002-07-17 | Rogowski coil current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02240194 CN2562191Y (en) | 2002-07-17 | 2002-07-17 | Rogowski coil current sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2562191Y true CN2562191Y (en) | 2003-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02240194 Expired - Fee Related CN2562191Y (en) | 2002-07-17 | 2002-07-17 | Rogowski coil current sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2562191Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439926C (en) * | 2006-03-31 | 2008-12-03 | 北京万工科技有限公司 | Integrator for Rogowski coil and its realizing method |
| CN101033983B (en) * | 2007-01-18 | 2010-04-21 | 武汉格蓝若光电互感器有限公司 | High anti-interference alternating-current/magnetic field sensor |
| CN101178417B (en) * | 2006-09-29 | 2010-11-03 | 通用汽车环球科技运作公司 | High-precision rogowski current transformer |
| CN102401855A (en) * | 2011-11-22 | 2012-04-04 | 李云宏 | Electric digital instrument using Rogowski coil current transformer |
| CN102436897A (en) * | 2011-09-15 | 2012-05-02 | 西安交通大学 | Flexible Rogowski coil used for detecting direct-current system short-circuit current and method for designing same |
| CN102998507A (en) * | 2011-09-09 | 2013-03-27 | 通用电气公司 | Sensor devices and methods for use in sensing current through a conductor |
| CN102998506A (en) * | 2011-09-09 | 2013-03-27 | 通用电气公司 | Sensor devices and methods for use in sensing current through a conductor |
| CN103116061A (en) * | 2013-01-29 | 2013-05-22 | 郑州精科电力自动化有限公司 | Novel open nonmagnetic core current sensor with compensating structure |
| CN104145186A (en) * | 2011-12-23 | 2014-11-12 | 森泰克有限公司 | Flexible current sensor arrangement |
| CN106062570A (en) * | 2014-01-07 | 2016-10-26 | 电力电子测量有限公司 | High bandwidth rogowski transducer with screened coil |
| CN106710776A (en) * | 2016-11-18 | 2017-05-24 | 国家电网公司 | Rogowski coil and electronic current transformer applying Rogowski coil |
| CN108414798A (en) * | 2018-03-08 | 2018-08-17 | 云南电网有限责任公司电力科学研究院 | A kind of current sensor, monitoring system and monitoring method |
-
2002
- 2002-07-17 CN CN 02240194 patent/CN2562191Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100439926C (en) * | 2006-03-31 | 2008-12-03 | 北京万工科技有限公司 | Integrator for Rogowski coil and its realizing method |
| CN101178417B (en) * | 2006-09-29 | 2010-11-03 | 通用汽车环球科技运作公司 | High-precision rogowski current transformer |
| CN101033983B (en) * | 2007-01-18 | 2010-04-21 | 武汉格蓝若光电互感器有限公司 | High anti-interference alternating-current/magnetic field sensor |
| CN102998507B (en) * | 2011-09-09 | 2016-12-21 | 亚克莱拉计量有限责任公司 | For sensing sensor device and the method for the electric current by conductor |
| CN102998506B (en) * | 2011-09-09 | 2017-05-03 | 亚克莱拉计量有限责任公司 | Sensor devices and methods for use in sensing current through a conductor |
| CN102998507A (en) * | 2011-09-09 | 2013-03-27 | 通用电气公司 | Sensor devices and methods for use in sensing current through a conductor |
| CN102998506A (en) * | 2011-09-09 | 2013-03-27 | 通用电气公司 | Sensor devices and methods for use in sensing current through a conductor |
| CN102436897A (en) * | 2011-09-15 | 2012-05-02 | 西安交通大学 | Flexible Rogowski coil used for detecting direct-current system short-circuit current and method for designing same |
| CN102436897B (en) * | 2011-09-15 | 2014-01-29 | 西安交通大学 | Flexible Rogowski coil used for detecting direct-current system short-circuit current and method for designing same |
| CN102401855A (en) * | 2011-11-22 | 2012-04-04 | 李云宏 | Electric digital instrument using Rogowski coil current transformer |
| CN104145186A (en) * | 2011-12-23 | 2014-11-12 | 森泰克有限公司 | Flexible current sensor arrangement |
| US9494620B2 (en) | 2011-12-23 | 2016-11-15 | Sentec Ltd | Flexible current sensor arrangement |
| CN103116061A (en) * | 2013-01-29 | 2013-05-22 | 郑州精科电力自动化有限公司 | Novel open nonmagnetic core current sensor with compensating structure |
| CN106062570A (en) * | 2014-01-07 | 2016-10-26 | 电力电子测量有限公司 | High bandwidth rogowski transducer with screened coil |
| CN106710776A (en) * | 2016-11-18 | 2017-05-24 | 国家电网公司 | Rogowski coil and electronic current transformer applying Rogowski coil |
| CN108414798A (en) * | 2018-03-08 | 2018-08-17 | 云南电网有限责任公司电力科学研究院 | A kind of current sensor, monitoring system and monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Lige Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030723 Termination date: 20090717 |