CN102508137A - Partial discharge detection pulse current sensor with self correcting function - Google Patents
Partial discharge detection pulse current sensor with self correcting function Download PDFInfo
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- CN102508137A CN102508137A CN2011104374556A CN201110437455A CN102508137A CN 102508137 A CN102508137 A CN 102508137A CN 2011104374556 A CN2011104374556 A CN 2011104374556A CN 201110437455 A CN201110437455 A CN 201110437455A CN 102508137 A CN102508137 A CN 102508137A
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Abstract
The invention relates to a partial discharge detection pulse current sensor with a self correcting function, belonging to the technical field of sensors for detection. The technical scheme of the partial discharge detection pulse current sensor is as follows: a closed-loop magnetic core (5), an output coil and a correcting coil are arranged in a shell, the output coil wound on the closed-loop magnetic core is used for inducing a current flowing through the closed-loop magnetic core to carry out partial detection, the correcting coil is additionally arranged on the closed-loop magnetic core so as to be used for realizing self correcting and self detection functions, and the partial discharge detection pulse current sensor is provided with a correcting interface (1) and an output interface (6), the correcting interface is connected with the correcting coil, and the output interface is connected with the output coil. The shell is of various structures, comprising an opening rectangle structure and a closed round structure, and is suitable for partial discharge online routing inspection or local discharge online monitoring. The partial discharge detection pulse current sensor disclosed by the invention has the beneficial effects of realizing self correcting and self detecting functions, being suitable for local discharge online inspection or partial discharge online monitoring, and being convenient and exact.
Description
Technical field
The present invention relates to a kind of Partial Discharge Detection pulses of current sensor that possesses the self-correcting function, belong to detect and use sensor technical field.
Background technology
Current; It is varied with sensor that detection is put in office, and wherein pulses of current sensor is mainly used in the pulse current variation on the checkout equipment ground wire, but this type of sensor generally only has an output interface; During the actual installation calibration; Need to twine mutual inductor more separately, and import standard signal and just can calibrate, and calibrate inconvenience to some extent after the sensor installation once more as alignment coil.In addition, this type of sensor only has an output interface, can't judge to put in long office and patrol and examine or whether office still is in normal operating conditions after being placed on reality use such as line monitoring.Even the monitored equipment of also need stopping transport just can judge, brings unnecessary trouble to equipment operation.
Summary of the invention
The object of the invention provides a kind of Partial Discharge Detection pulses of current sensor that possesses the self-correcting function, realizes self calibration and self-checking function, and the office of being applicable to is placed on that line is patrolled and examined or office is placed on the line monitoring, and is accurately convenient, solves the problems referred to above of background technology existence.
Technical scheme of the present invention is:
The Partial Discharge Detection pulses of current sensor that possesses the self-correcting function; Closed loop magnetic core, output winding and alignment coil are set in the shell, and the electric current of crossing magnetic core through the output winding induced flow on the closed loop magnetic core carries out office puts detection, on the closed loop magnetic core, increases alignment coil; Be used to realize self calibration and self-checking function; And being provided with calibration interface and output interface, calibration interface connects alignment coil, is connected output winding with output interface.
Said shell is multiple structure, comprising: the opening rectangular configuration and the circular configuration of remaining silent, the office of being applicable to is placed on that line is patrolled and examined or office is placed on line and monitors.
Opening rectangular configuration sensor, sensor adopt magnetic to attach the separate type design, and shell is a rectangular configuration; Integral body is ring-type; Be divided into left and right sides two parts, comprise calibration interface and output interface, in use only need left and right sides two parts are got final product being drawn onto together through magnet and pin.This kind structure office of being mainly used in is placed on that line is patrolled and examined or on-line monitoring, convenient on-the-spot the installation and dismounting, can charged online installation or off-line install.
The circular configuration sensor of remaining silent, sensor adopt closed integral type design, and shell integral body be ring-type, and the outside is square, and the inside is a circle, comprises output interface and calibration interface, and in use need pass the iron core grounding line with sensor in advance.This kind structure is mainly used in long-term office and is placed on the line monitoring, needs off-line to install.
Principle of work of the present invention is according to electromagnetic induction principle, carries out pulse current and detects, and increased alignment coil and calibrate.During actual the use; At first sensor is blocked the ground wire of equipment under test, and checkout equipment is put in the output interface office of being connected to, carry out data monitoring; Only need during calibration standard signal is connected to calibration interface, observation office puts the Monitoring Data of checkout equipment and it is calibrated to the standard signal value.After the long-term use of sensor; Can must judge easily whether it is operated in normal condition; Promptly import standard signal, cause monitor signal inaccurate if some problems have appearred in the inconsistent explanation sensor of signal that receives and standard signal through above-mentioned same mode, can be according to actual conditions failure judgement reason; And emat sensor more, if the consistent sensor of explaining of testing result still is operated in normal condition.
The beneficial effect of type of the present invention is: realize self calibration and self-checking function, the office of being applicable to is placed on that line is patrolled and examined or office is placed on the line monitoring, and is convenient accurate.
Description of drawings
Fig. 1 is a principle of the invention synoptic diagram;
Fig. 2 is the embodiment of the invention one an opening rectangular configuration sensor synoptic diagram;
Fig. 3 is the embodiment of the invention one an opening rectangular configuration sensor split view;
Fig. 4 is the embodiment of the invention two circular configuration sensor synoptic diagram of remaining silent;
Fig. 5 is the embodiment of the invention two circular configuration sensor split view of remaining silent;
Among the figure: calibration interface 1, shell 2, magnet 3, pin 4, closed loop magnetic core 5, output interface 6.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further through embodiment.
The Partial Discharge Detection pulses of current sensor that possesses the self-correcting function; Closed loop magnetic core 5, output winding and alignment coil are set in the shell, and the electric current of crossing magnetic core through the output winding induced flow on the closed loop magnetic core carries out office puts detection, on the closed loop magnetic core, increases alignment coil; Be used to realize self calibration and self-checking function; And being provided with calibration interface 1 and output interface 6, calibration interface connects alignment coil, is connected output winding with output interface.
Said shell is multiple structure, comprising: shell is the opening rectangular configuration or the circular configuration of remaining silent, and the office of being applicable to is placed on that line is patrolled and examined or office is placed on the line monitoring.
Opening rectangular configuration sensor, sensor adopt magnetic to attach the separate type design, and shell is a rectangular configuration; Shell integral body is ring-type; Be divided into left and right sides two parts, comprise calibration interface 1 and output interface 6, in use a need be drawn onto left and right sides two parts together through magnet 3 and 4 pairs on pin and get final product.This kind structure office of being mainly used in is placed on that line is patrolled and examined or on-line monitoring, convenient on-the-spot the installation and dismounting, can charged online installation or off-line install.
The circular configuration sensor of remaining silent, sensor adopt closed integral type design, and shell integral body be ring-type, and the outside is square, and the inside be a circle, comprises output interface 1 and calibration interface 6, and in use need pass equipment iron core grounding line with sensor in advance.This kind structure is mainly used in long-term office and is placed on the line monitoring, needs off-line to install.
Principle of work of the present invention is according to electromagnetic induction principle, carries out pulse current and detects, and increased alignment coil and calibrate.During actual the use; At first sensor is blocked the ground wire of equipment under test, and checkout equipment is put in the output interface office of being connected to, carry out data monitoring; Only need during calibration standard signal is connected to calibration interface, observation office puts the Monitoring Data of checkout equipment and it is calibrated to the standard signal value.After the long-term use of sensor; Can must judge easily whether it is operated in normal condition; Promptly import standard signal, cause monitor signal inaccurate if some problems have appearred in the inconsistent explanation sensor of signal that receives and standard signal through above-mentioned same mode, can be according to actual conditions failure judgement reason; And emat sensor more, if the consistent sensor of explaining of testing result still is operated in normal condition.
Claims (4)
1. Partial Discharge Detection pulses of current sensor that possesses the self-correcting function; It is characterized in that: closed loop magnetic core (5), output winding and alignment coil are set in the shell, and the electric current of crossing magnetic core through the output winding induced flow on the closed loop magnetic core carries out office puts detection, on the closed loop magnetic core, increases alignment coil; Be used to realize self calibration and self-checking function; And being provided with calibration interface (1) and output interface (6), calibration interface connects alignment coil, is connected output winding with output interface.
2. the Partial Discharge Detection pulses of current sensor that possess self-correcting function according to claim 1 is characterized in that shell is the opening rectangular configuration or the circular configuration of remaining silent.
3. the Partial Discharge Detection pulses of current sensor that possess self-correcting function according to claim 2; It is characterized in that the opening rectangular configuration, sensor adopts magnetic to attach the separate type design, and shell is a rectangular configuration; Integral body is ring-type; Be divided into left and right sides two parts, comprise calibration interface (1) and output interface (6), in use only need left and right sides two parts are got final product being drawn onto together through magnet (3) and pin (4).
4. the Partial Discharge Detection pulses of current sensor that possess self-correcting function according to claim 1; The circular configuration sensor is characterized in that remaining silent; Sensor adopts closed integral type design, and shell integral body is ring-type, and the outside is square; The inside is circular, comprises output interface (1) and calibration interface (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104374556A CN102508137A (en) | 2011-12-23 | 2011-12-23 | Partial discharge detection pulse current sensor with self correcting function |
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| CN2011104374556A CN102508137A (en) | 2011-12-23 | 2011-12-23 | Partial discharge detection pulse current sensor with self correcting function |
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| CN102508137A true CN102508137A (en) | 2012-06-20 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259396A (en) * | 2015-11-03 | 2016-01-20 | 三峡大学 | Electronic current transformer which is installable and dismountable in electrified manner |
| CN109655723A (en) * | 2018-12-29 | 2019-04-19 | 国网江苏省电力有限公司电力科学研究院 | A kind of partial discharge detecting sensor for high-tension current inductor |
| CN109917318A (en) * | 2019-04-03 | 2019-06-21 | 北京碧思特科技有限公司 | The self checking sensor and its method of for partial discharge of switchgear electric wave detection |
| CN112816836A (en) * | 2020-12-30 | 2021-05-18 | 上海格鲁布科技有限公司 | Fault detection system, partial discharge online monitoring device and method |
| CN113253081A (en) * | 2021-07-08 | 2021-08-13 | 北京国电通网络技术有限公司 | Multi-antenna partial discharge signal processing device |
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| CN201247303Y (en) * | 2008-08-20 | 2009-05-27 | 西安供电局 | Current sensor for on-line monitoring cable local discharge |
| CN101718852A (en) * | 2009-12-04 | 2010-06-02 | 中国电力科学研究院 | Online detection and calibration method for Hall current sensor |
| CN101788647A (en) * | 2010-01-28 | 2010-07-28 | 桂林电子科技大学 | Arc time inductor and electrical life on-line monitoring system of circuit breaker |
| CN102012448A (en) * | 2010-10-26 | 2011-04-13 | 西安交通大学 | Rogowski current sensor |
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| CN201247303Y (en) * | 2008-08-20 | 2009-05-27 | 西安供电局 | Current sensor for on-line monitoring cable local discharge |
| CN101718852A (en) * | 2009-12-04 | 2010-06-02 | 中国电力科学研究院 | Online detection and calibration method for Hall current sensor |
| CN101788647A (en) * | 2010-01-28 | 2010-07-28 | 桂林电子科技大学 | Arc time inductor and electrical life on-line monitoring system of circuit breaker |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105259396A (en) * | 2015-11-03 | 2016-01-20 | 三峡大学 | Electronic current transformer which is installable and dismountable in electrified manner |
| CN105259396B (en) * | 2015-11-03 | 2019-04-02 | 三峡大学 | A kind of electronic current mutual inductor charging installation and removal |
| CN109655723A (en) * | 2018-12-29 | 2019-04-19 | 国网江苏省电力有限公司电力科学研究院 | A kind of partial discharge detecting sensor for high-tension current inductor |
| CN109655723B (en) * | 2018-12-29 | 2024-03-08 | 国网江苏省电力有限公司电力科学研究院 | Partial discharge detection sensor for high-voltage current transformer |
| CN109917318A (en) * | 2019-04-03 | 2019-06-21 | 北京碧思特科技有限公司 | The self checking sensor and its method of for partial discharge of switchgear electric wave detection |
| CN112816836A (en) * | 2020-12-30 | 2021-05-18 | 上海格鲁布科技有限公司 | Fault detection system, partial discharge online monitoring device and method |
| CN113253081A (en) * | 2021-07-08 | 2021-08-13 | 北京国电通网络技术有限公司 | Multi-antenna partial discharge signal processing device |
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Application publication date: 20120620 |