CN109917318A - The self checking sensor and its method of for partial discharge of switchgear electric wave detection - Google Patents
The self checking sensor and its method of for partial discharge of switchgear electric wave detection Download PDFInfo
- Publication number
- CN109917318A CN109917318A CN201910265835.2A CN201910265835A CN109917318A CN 109917318 A CN109917318 A CN 109917318A CN 201910265835 A CN201910265835 A CN 201910265835A CN 109917318 A CN109917318 A CN 109917318A
- Authority
- CN
- China
- Prior art keywords
- signal
- sensor
- partial discharge
- isolated shield
- checking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to electric partial discharge fields of measurement, in particular to for partial discharge of switchgear electric wave monitoring self checking sensor, the partial discharge of switchgear electric wave monitoring self checking sensor be made of shell, signal substrate, Isolated Shield cover, signal output interface, signal checking interface, signal connecting line etc..The present invention on substrate by etching signal coupled zone, signal checking area and Isolated Shield area, Isolated Shield cover is welded in Isolated Shield area, input signal passes through crimping coaxial cable transmission, sensor scene is quickly calibrated, sensor is to the initiative Isolated Shield of interference signal for electric wave monitoring partial discharge of switchgear can be achieved, to test ease, long-time stability and its accuracy of sensor when improving partial discharge of switchgear sensor online.
Description
Technical field
The present invention relates to electric partial discharge field of measuring technique, in particular to for partial discharge of switchgear electric wave is supervised
The self checking sensor and its method of survey.
Background technique
Switchgear is the important component of electric system, works normally the normal fortune for directly affecting electric system
Row.Switchgear can generate local discharge signal when occurring the defects of burr, aging in operation, pass through the monitoring to shelf depreciation
It can effectively judge the state of switchgear, detection local discharge signal has the normal operation for guaranteeing switchgear particularly significant
Meaning.
Ground electric wave detection method carries out Partial Discharge Detection to closed high-tension switch gear, changes traditional measurement side
Formula, before switchgear failure, defects and hidden dangers existing for discovering device are reinforced note that long term monitoring comparison, prevention
Equipment breaks down.
But existing ground electric wave online monitoring instruments cannot be easy the sensor of judgement at the scene with the presence or absence of it is abnormal and into
Row verification, can not judge whether monitoring instrument is good, be easy to appear large error in long-time monitoring.
Summary of the invention
The technical problem to be solved by the present invention is to overcome technical defect, for partial discharge of switchgear electric wave is provided
The self checking sensor and its method of monitoring simple and convenient can carry out differentiation calibration to sensor by this method.
In order to solve the above technical problems, technical solution provided by the invention for partial discharge of switchgear electric wave monitoring from
Check sensor: including sensor, the sensor is by shell, signal substrate, Isolated Shield cover, signal output interface, signal
Verification interface, signal connecting line composition.
As an improvement, the signal substrate of the sensor is equipped with signal reception area, signal checking area and Isolated Shield area,
The shape of the signal substrate is not limited to round, square, rectangle, the signal reception area, signal checking area and isolated screen
It covers area's shape and is not limited to circle, square, rectangle, annular.
As an improvement, the Isolated Shield module and Isolated Shield cover on the sensor board weld together composition interference screen
Unit is covered, the Isolated Shield cover is process by metal or alloy, and the metal of the Isolated Shield cover processing is not limited to stainless
Steel, copper, permalloy etc..
The method of for partial discharge of switchgear electric wave monitoring: the device is that claim is taken up an official post to claim
The meaning sensor, when being verified, by signal checking interface input validation signal, passes through the signal checking area of signal substrate
It couples a signal to switch cabinet body surface, then signal acquisition and defeated by signal will be verified by the signal coupled zone of signal substrate
Outgoing interface is transferred on instrument.
After using the above structure, the present invention has the advantage that can radio wave sensor carries out quick school over the ground at the scene
Quasi-, sensor to the initiative Isolated Shield of noise signal, improve partial discharge of switchgear sensor degree easy to use,
Long-time stability and its accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the self checking sensor of the present invention for partial discharge of switchgear electric wave monitoring.
Fig. 2 is the structure of the self checking sensor substrate of the present invention for partial discharge of switchgear electric wave monitoring
Schematic diagram.
It is as shown in the figure: 1, shell, 2, signal substrate, 3, Isolated Shield cover, 4, signal output interface, 5, signal checking connects
Mouthful, 6, signal connecting line, 7, signal reception area, 8, signal checking area, 9, Isolated Shield area.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
In conjunction with attached drawing, the self checking sensor of for partial discharge of switchgear electric wave monitoring, including sensor, the biography
Sensor is by shell 1, signal substrate 2, Isolated Shield cover 3, signal output interface 4, signal checking interface 5,6 groups of signal connecting line
At.
The signal substrate 2 of the sensor is equipped with signal reception area 7, signal checking area 8 and Isolated Shield area 9, described
The shape of signal substrate 2 is not limited to round, square, rectangle, the signal reception area 7, signal checking area 8 and Isolated Shield
9 shape of area is not limited to circle, square, rectangle, annular.
Isolated Shield module and Isolated Shield cover 3 on the sensor board weld together composition interference shielding unit,
The Isolated Shield cover 3 is process by metal or alloy, the metal that the Isolated Shield cover 3 is processed be not limited to stainless steel, copper,
Permalloy etc..
The method of for partial discharge of switchgear electric wave monitoring: the device is claim 1 to claim 3
Any sensor, when being verified, by 5 input validation signal of signal checking interface, passes through the signal school of signal substrate 2
Test area 8 and couple a signal to switch cabinet body surface, then by the signal coupled zone of signal substrate 2 will verify signal acquisition and by
Signal output interface 4 is transferred on instrument.
Isolated Shield cover 3 is welded to the Isolated Shield area of signal substrate 2 by the working principle of the invention, is used for isolated screen
Cover extraneous noise and its checking signal.
The signal reception area of signal substrate 2 is connected to signal output interface by crimping coaxial cable cable skin, for supervising
Survey the ground electric wave signal generated when switchgear electric discharge.
The signal checking area of signal substrate 2 is wired to signal checking interface, for emitting checking signal.
The present invention and its embodiments have been described above, this description is no restricted, shown in the drawings
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (4)
1. the self checking sensor of for partial discharge of switchgear electric wave monitoring, including sensor, it is characterised in that: the biography
Sensor is by shell (1), signal substrate (2), Isolated Shield cover (3), signal output interface (4), signal checking interface (5), signal
Connecting line (6) composition.
2. the self checking sensor of for partial discharge of switchgear electric wave monitoring according to claim 1, feature exist
In: the signal substrate (2) of the sensor is equipped with signal reception area (7), signal checking area (8) and Isolated Shield area (9), institute
The shape for stating signal substrate (2) is not limited to round, square, rectangle, the signal reception area (7), signal checking area (8) and
Isolated Shield area (9) shape is not limited to circle, square, rectangle, annular.
3. the self checking sensor of for partial discharge of switchgear electric wave monitoring according to claim 1, feature exist
In: Isolated Shield module and Isolated Shield cover (3) on the sensor board weld together composition interference shielding unit, described
Isolated Shield cover (3) is process by metal or alloy, the metal of the Isolated Shield cover (3) processing be not limited to stainless steel, copper,
Permalloy etc..
4. the method for for partial discharge of switchgear electric wave monitoring, it is characterised in that: the device is that claim 1 arrives power
Benefit requires any sensor on 3, when being verified, by signal checking interface (5) input validation signal, passes through signal base
The signal checking area (8) of plate (2) couples a signal to switch cabinet body surface, then passes through the signal coupled zone of signal substrate (2)
Signal acquisition will be verified and be transferred on instrument by signal output interface (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265835.2A CN109917318A (en) | 2019-04-03 | 2019-04-03 | The self checking sensor and its method of for partial discharge of switchgear electric wave detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265835.2A CN109917318A (en) | 2019-04-03 | 2019-04-03 | The self checking sensor and its method of for partial discharge of switchgear electric wave detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109917318A true CN109917318A (en) | 2019-06-21 |
Family
ID=66968433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910265835.2A Pending CN109917318A (en) | 2019-04-03 | 2019-04-03 | The self checking sensor and its method of for partial discharge of switchgear electric wave detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109917318A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508137A (en) * | 2011-12-23 | 2012-06-20 | 保定天威集团有限公司 | Partial discharge detection pulse current sensor with self correcting function |
| CN103344929A (en) * | 2013-06-21 | 2013-10-09 | 广西电网公司电力科学研究院 | Ground electric wave signal testing device used for switch cabinet partial discharge testing |
| CN203287510U (en) * | 2013-03-27 | 2013-11-13 | 国家电网公司 | Verification device of transient state ground wave detection device |
| CN107238811A (en) * | 2017-06-05 | 2017-10-10 | 国网重庆市电力公司电力科学研究院 | The calibrating installation of ultrahigh frequency partial discharge on-Line Monitor Device under a kind of site environment |
| CN107765155A (en) * | 2017-12-04 | 2018-03-06 | 福建和盛高科技产业有限公司 | A kind of sensor and its application method for partial discharge of switchgear detection |
| CN107907847A (en) * | 2017-12-28 | 2018-04-13 | 广东南电卓越科技有限公司 | The self-test and self-calibration system and method for high-frequency local discharging on-line checking based on frequency mixing technique |
| CN207832952U (en) * | 2018-01-09 | 2018-09-07 | 河北如电电气设备有限公司 | A kind of novel instrument for measuring partial discharge |
| EP3418754A1 (en) * | 2017-03-17 | 2018-12-26 | Zhejiang Magtron Intelligent Technology Limited Cooperation | Leakage current sensor, and apparatus for monitoring leakage current |
-
2019
- 2019-04-03 CN CN201910265835.2A patent/CN109917318A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508137A (en) * | 2011-12-23 | 2012-06-20 | 保定天威集团有限公司 | Partial discharge detection pulse current sensor with self correcting function |
| CN203287510U (en) * | 2013-03-27 | 2013-11-13 | 国家电网公司 | Verification device of transient state ground wave detection device |
| CN103344929A (en) * | 2013-06-21 | 2013-10-09 | 广西电网公司电力科学研究院 | Ground electric wave signal testing device used for switch cabinet partial discharge testing |
| EP3418754A1 (en) * | 2017-03-17 | 2018-12-26 | Zhejiang Magtron Intelligent Technology Limited Cooperation | Leakage current sensor, and apparatus for monitoring leakage current |
| CN107238811A (en) * | 2017-06-05 | 2017-10-10 | 国网重庆市电力公司电力科学研究院 | The calibrating installation of ultrahigh frequency partial discharge on-Line Monitor Device under a kind of site environment |
| CN107765155A (en) * | 2017-12-04 | 2018-03-06 | 福建和盛高科技产业有限公司 | A kind of sensor and its application method for partial discharge of switchgear detection |
| CN107907847A (en) * | 2017-12-28 | 2018-04-13 | 广东南电卓越科技有限公司 | The self-test and self-calibration system and method for high-frequency local discharging on-line checking based on frequency mixing technique |
| CN207832952U (en) * | 2018-01-09 | 2018-09-07 | 河北如电电气设备有限公司 | A kind of novel instrument for measuring partial discharge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103913679B (en) | High-tension switch cabinet partial discharge monitoring system | |
| US20030214307A1 (en) | Device for detecting partial discharge in power equipment using radiated electromagnetic wave | |
| CN103926483B (en) | Method for testing radiosensitivity through low-level sweep-frequency current testing system | |
| CN107146647B (en) | A kind of portable neutron detection device | |
| CN208654277U (en) | A kind of high-tension switch cabinet local discharge on-line monitoring device | |
| CN105891761A (en) | Scattering parameter-based partial discharge ultrahigh frequency detection system field check method | |
| US20130033270A1 (en) | Electromagnetic interference test sytem with self-checking function and self-checking method | |
| EP2063276A1 (en) | Partial discharge detection method and partial discharge detection device | |
| CN111913079A (en) | Overhead transmission line cable fault detection system | |
| KR102089185B1 (en) | Apparatus and system for diagnosing partial discharge of gas insulated switchgear | |
| CN107462853A (en) | A kind of scaling method of superfrequency partial discharge detecting system | |
| CN105759187A (en) | Combined electric apparatus partial discharge multi-information fusion diagnostic device | |
| CN105717425A (en) | Supersonic online detection system of 1000kV GIS | |
| CN109917318A (en) | The self checking sensor and its method of for partial discharge of switchgear electric wave detection | |
| CN103185843B (en) | Electromagnetic interference detecting device and method for pinhole detecting equipment | |
| CN109946558B (en) | Leakage fault detector based on magnetic field signal analysis and use method thereof | |
| CN106680841A (en) | Method for detecting short message communication performance of Beidou first-generation user machine in external field | |
| CN108152726B (en) | Intelligent electric power instrument and high-voltage switch cabinet for on-line monitoring mechanical state of circuit breaker | |
| CN212622907U (en) | Transformer partial discharge thing networking monitoring devices | |
| CN104101424B (en) | Vibration monitoring method and device and vibration analyzer | |
| CN203551678U (en) | Online monitoring system of amorphous alloy tridimensional toroidal-core transformer | |
| CN215493946U (en) | High-voltage overhead line partial discharge accurate positioning device | |
| CN110261741A (en) | Discharge position localization method, device and the terminal device of high-tension switch gear | |
| CN205562732U (en) | Many information fusion diagnostic device of combined electrical apparatus partial discharge | |
| JP3895450B2 (en) | Rotating electrical machine abnormality detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190621 |