CN103257266A - Portable all-insulation optical-fiber current detector - Google Patents
Portable all-insulation optical-fiber current detector Download PDFInfo
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- CN103257266A CN103257266A CN2013101378145A CN201310137814A CN103257266A CN 103257266 A CN103257266 A CN 103257266A CN 2013101378145 A CN2013101378145 A CN 2013101378145A CN 201310137814 A CN201310137814 A CN 201310137814A CN 103257266 A CN103257266 A CN 103257266A
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Abstract
The invention provides a portable all-insulation optical-fiber current detector which comprises a all-fiber current transformer, a photoelectric digital sampling processor and an output display module. A fiber probe is fixedly mounted by a fixing device, and the fiber probe of the all-fiber current transformer is fixedly mounted by the fixing device on a high-voltage electrical conductor. A signal output end of the all-fiber current transformer is connected with an input end of the photoelectric digital sampling processor, and an output end of the photoelectric digital sampling processor is connected with the output display module. The fiber probe of the all-fiber current transformer is used for detecting high-voltage electrical conductors and cables. The portable all-insulation optical-fiber current detector is simple in structure, convenient to carry and use, and accurate in measurement. Moreover, online measurement of primary and secondary values of the current in the high-voltage class is achieved, and efficiency of condition-based maintenance and failure analysis is improved.
Description
Technical field
The present invention relates to a kind of portable all-insulated optic fibre current detecting instrument.
Background technology
All rely on the measurements of hard-wired current transformer in the current power system for the detection of the lead of the above voltage levels of 10kV and cable current, and because the restriction of principle own, manufacturing process and the insulating requirements of conventional current mutual inductor can't realize making the portable type measuring device.Thereby the measurement means that lacks other is carried out online contrast and online detection to a secondary current and current transformer progress of disease performance.
Summary of the invention
The invention provides a kind of portable all-insulated optic fibre current detecting instrument, it is not only simple in structure, carries with easy to use, measures accurately, and realize that one or two sub-values to the electric current of voltage levels are implemented in line and measure, improved in repair based on condition of component and fault analysis efficient.
The present invention has adopted following technical scheme: a kind of portable all-insulated optic fibre current detecting instrument, it comprises all-fiber current transformator, photoelectric figure sampling processor and output display module, described fibre-optical probe is fixedly mounted by stationary installation, the fibre-optical probe of all-fiber current transformator is fixedly mounted on the high-voltage power lead by stationary installation and connects, the signal output part of all-fiber current transformator is connected with the input end of photoelectric figure sampling processor, the output terminal of photoelectric figure sampling processor and output display module, the fibre-optical probe of all-fiber current transformator is for detection of high-tension electrical lead and cable, the electric current formed magnetic field that fibre-optical probe detects high-tension electrical lead and cable makes the light polarization angle in the optical fiber that deflection take place, and angle and size of current are linear, thereby form the light signal contain the magnitude of current and give the photoelectric figure sampling processor with optical signal transmission, the photoelectric figure sampling processor changes light signal after the current digital amount into and shows by the output display module and to read.
Described all-fiber current transformator is passive all-fiber current transformator.Described stationary installation is set to the ferrule that all insulation material is made, and fibre-optical probe is fixed on the ferrule, and ferrule is enclosed within on the high-voltage power lead.Described output display module is set to the display of sampling.Described fibre-optical probe is set to the Fibre Optical Sensor ring.
The present invention has following beneficial effect: the present invention utilizes the all-fiber current transformator principle, all-fiber current transformator after the portable design and photoelectric figure sampling processing, output display module are combined, and a kind of function that is similar to traditional clamp on amperemeter is realized in integrated back.Current transformer after the portable design is to utilize based on Faraday magnetooptical effect, the full optical fiber OCT of Ampere circuit law and match lattice Neck effect measurement principle realizes, make the detection probe of whole fibre-optic current detector have insulating property like this, no matter be high pressure bare conductor or insulated conductor, all has good insulating of electric measurement of high pressure performance, size according to insulation course, go for the high-voltage power lead of different electric pressures, use safely under the normal operating conditions such as cable, other power equipment does not need to stop using especially, and the present invention is all-insulated optic fibre to the detection probe of electrical lead to be measured or cable, but not traditional electrical magnetic coil, add and adopt lightweight all insulation sleeve pipe or support, the single unit system quality is light, be convenient to that the testing staff carries and execute-in-place, the present invention all adopts insulating material to constitute, the insulating property height, the body breakage, insulation ag(e)ing is less to the influence of insulating property.The present invention has integrated follow-up sampling and processing and display module to light signal, can directly read corresponding current value at display for the technician.The present invention not only replaces the electromagnet of the clamp on amperemeter of traditional thick heaviness by the light optical fiber that depends on all insulation stock support, carry out current measurement to 10kV and with upper conductor, cable easily, and can solve again the conventional current table easily mistake bump and cause charged position to cause the problem of potential safety hazard, for work on the spot provides safety assurance, improves work on the spot efficient; Also for being carried out, hard-wired current transformer improved secondary current measured value precision when real-time online detects simultaneously.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
In Fig. 1, the invention provides a kind of portable all-insulated optic fibre current detecting instrument, it comprises all-fiber current transformator, photoelectric figure sampling processor and output display module, all-fiber current transformator is passive all-fiber current transformator, described fibre-optical probe is fixedly mounted by stationary installation, described fibre-optical probe is set to the Fibre Optical Sensor ring, the fibre-optical probe of all-fiber current transformator is fixedly mounted on the high-voltage power lead by stationary installation, stationary installation is set to the ferrule that all insulation material is made, fibre-optical probe is fixed on the ferrule, ferrule is enclosed within on the high-voltage power lead, the signal output part of all-fiber current transformator is connected with the input end of photoelectric figure sampling processor, the output terminal of photoelectric figure sampling processor and output display module, the fibre-optical probe of all-fiber current transformator is for detection of high-tension electrical lead and cable, the electric current formed magnetic field that fibre-optical probe detects high-tension electrical lead and cable makes the light polarization angle in the optical fiber that deflection take place, and angle and size of current are linear, thereby formation contains the light signal of the magnitude of current and gives the photoelectric figure sampling processor with optical signal transmission, the photoelectric figure sampling processor changes light signal after the current digital amount into and shows by the output display module and to read that the output display module is set to the display of sampling.
Claims (5)
1. portable all-insulated optic fibre current detecting instrument, it is characterized in that it comprises all-fiber current transformator, photoelectric figure sampling processor and output display module, described fibre-optical probe is fixedly mounted by stationary installation, the fibre-optical probe of all-fiber current transformator is fixedly mounted on the high-voltage power lead by stationary installation and connects, the signal output part of all-fiber current transformator is connected with the input end of photoelectric figure sampling processor, the output terminal of photoelectric figure sampling processor and output display module, the fibre-optical probe of all-fiber current transformator is for detection of high-tension electrical lead and cable, the electric current formed magnetic field that fibre-optical probe detects high-tension electrical lead and cable makes the light polarization angle in the optical fiber that deflection take place, and angle and size of current are linear, thereby form the light signal contain the magnitude of current and give the photoelectric figure sampling processor with optical signal transmission, the photoelectric figure sampling processor changes light signal after the current digital amount into and shows by the output display module and to read.
2. portable all-insulated optic fibre current detecting instrument according to claim 1 is characterized in that described all-fiber current transformator is passive all-fiber current transformator.
3. portable all-insulated optic fibre current detecting instrument according to claim 1 is characterized in that described stationary installation is set to the ferrule that all insulation material is made, and fibre-optical probe is fixed on the ferrule, and ferrule is enclosed within on the high-voltage power lead.
4. portable all-insulated optic fibre current detecting instrument according to claim 1 is characterized in that described output display module is set to the display of sampling.
5. portable all-insulated optic fibre current detecting instrument according to claim 1 is characterized in that described fibre-optical probe is set to the Fibre Optical Sensor ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101378145A CN103257266A (en) | 2013-04-21 | 2013-04-21 | Portable all-insulation optical-fiber current detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101378145A CN103257266A (en) | 2013-04-21 | 2013-04-21 | Portable all-insulation optical-fiber current detector |
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| CN103257266A true CN103257266A (en) | 2013-08-21 |
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| CN2013101378145A Pending CN103257266A (en) | 2013-04-21 | 2013-04-21 | Portable all-insulation optical-fiber current detector |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926457A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Method for improving closed loop feedback coefficient stability of optical fiber current transformer |
| CN107102198A (en) * | 2017-06-26 | 2017-08-29 | 苏州大学 | Portable DC load current real- time recorder |
| CN108459197A (en) * | 2017-02-20 | 2018-08-28 | 武汉市欧睿科技有限公司 | Optical fiber current mutual inductor secondary side signal detecting method based on DSP |
| CN110542789A (en) * | 2019-09-26 | 2019-12-06 | 国网重庆市电力公司电力科学研究院 | Optical fiber current sensor and acquisition device |
| CN110907876A (en) * | 2019-12-06 | 2020-03-24 | 西安交通大学 | Optical fiber current sensor fault diagnosis system and diagnosis method thereof |
| CN113495199A (en) * | 2021-09-09 | 2021-10-12 | 深圳博润缘科技有限公司 | Power equipment safety monitoring method and system |
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| CN2339994Y (en) * | 1998-05-09 | 1999-09-22 | 华中理工大学 | 220 KV active optic-fiber current transformer |
| JP2008134192A (en) * | 2006-11-29 | 2008-06-12 | East Japan Railway Co | Reflection type optical fiber current sensor |
| CN201498352U (en) * | 2009-09-08 | 2010-06-02 | 山东电力集团公司潍坊供电公司 | All-fiber current transformer |
| WO2011125564A1 (en) * | 2010-03-31 | 2011-10-13 | 東京電力株式会社 | Optical fiber current sensor and electric current measurement method |
| CN102426280A (en) * | 2011-10-19 | 2012-04-25 | 上海大学 | Reflection-type Sagnac interference fiber current sensor |
| CN102830259A (en) * | 2011-06-17 | 2012-12-19 | 中国科学院西安光学精密机械研究所 | All-fiber current sensor |
| CN203672960U (en) * | 2013-04-21 | 2014-06-25 | 国家电网公司 | Portable all-insulation optical-fiber electric current detector |
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2013
- 2013-04-21 CN CN2013101378145A patent/CN103257266A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2339994Y (en) * | 1998-05-09 | 1999-09-22 | 华中理工大学 | 220 KV active optic-fiber current transformer |
| JP2008134192A (en) * | 2006-11-29 | 2008-06-12 | East Japan Railway Co | Reflection type optical fiber current sensor |
| CN201498352U (en) * | 2009-09-08 | 2010-06-02 | 山东电力集团公司潍坊供电公司 | All-fiber current transformer |
| WO2011125564A1 (en) * | 2010-03-31 | 2011-10-13 | 東京電力株式会社 | Optical fiber current sensor and electric current measurement method |
| CN102830259A (en) * | 2011-06-17 | 2012-12-19 | 中国科学院西安光学精密机械研究所 | All-fiber current sensor |
| CN102426280A (en) * | 2011-10-19 | 2012-04-25 | 上海大学 | Reflection-type Sagnac interference fiber current sensor |
| CN203672960U (en) * | 2013-04-21 | 2014-06-25 | 国家电网公司 | Portable all-insulation optical-fiber electric current detector |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926457A (en) * | 2014-04-25 | 2014-07-16 | 国家电网公司 | Method for improving closed loop feedback coefficient stability of optical fiber current transformer |
| CN103926457B (en) * | 2014-04-25 | 2017-08-08 | 国家电网公司 | A kind of method for improving optical fiber current mutual inductor closed loop feedback factor stability |
| CN108459197A (en) * | 2017-02-20 | 2018-08-28 | 武汉市欧睿科技有限公司 | Optical fiber current mutual inductor secondary side signal detecting method based on DSP |
| CN107102198A (en) * | 2017-06-26 | 2017-08-29 | 苏州大学 | Portable DC load current real- time recorder |
| CN110542789A (en) * | 2019-09-26 | 2019-12-06 | 国网重庆市电力公司电力科学研究院 | Optical fiber current sensor and acquisition device |
| CN110907876A (en) * | 2019-12-06 | 2020-03-24 | 西安交通大学 | Optical fiber current sensor fault diagnosis system and diagnosis method thereof |
| CN113495199A (en) * | 2021-09-09 | 2021-10-12 | 深圳博润缘科技有限公司 | Power equipment safety monitoring method and system |
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Application publication date: 20130821 |