CN108318792A - A kind of cable mid head partial discharge monitoring system - Google Patents
A kind of cable mid head partial discharge monitoring system Download PDFInfo
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- CN108318792A CN108318792A CN201810345304.XA CN201810345304A CN108318792A CN 108318792 A CN108318792 A CN 108318792A CN 201810345304 A CN201810345304 A CN 201810345304A CN 108318792 A CN108318792 A CN 108318792A
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- partial discharge
- cable
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- communication device
- head partial
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention relates to Partial Discharge Detecting Technology fields, more particularly, to a kind of cable mid head partial discharge monitoring system.Include medial head partial discharge tester, information collecting device, information-communication device, terrestrial information processing unit, background system and the distance terminal of the TEV signals for acquiring cable local discharge generation, medial head partial discharge tester, information collecting device and the information-communication device electrical connection, the information-communication device is communicated to connect with terrestrial information processing unit, and terrestrial information communication device, background system and the distance terminal communicate to connect successively.Real time on-line monitoring can be carried out to cable mid head shelf depreciation situation.
Description
Technical field
The present invention relates to Partial Discharge Detecting Technology fields, exist more particularly, to a kind of cable mid head shelf depreciation
Line monitoring system.
Background technology
As scale of urbanization constantly expands, corresponding city affiliated facility development is rapid, and State Grid basis is set
It applies to be dropped in and increase year by year, the length of cable duct is also increasing sharply.Underground supply network in large scale, cable distribution are many
It is more, requirements at the higher level are proposed to the safe operation and accident prevention of cable.Cable mid head is as connecting between different sections of cables
Cable accessory is the more weak link that insulate, serious after a period of time of putting into operation it occur frequently that the case where Excess Partial Discharge
It occur frequently that ground connection or phase fault, cause grid power blackout.
The method that the most of Utilities Electric Co.s in the whole nation generally use periodical inspection to the management of cable at present, to electric in cable duct
The operation conditions of cable medial head is without effective monitoring mode.This way to manage has significant limitations, if cable mid head generation office
Putting exceeded situation can not find in time, be often required to find until power outage generation, by fault detect means.Currently,
There has been no the devices that partial discharge monitoring, alarm are carried out for cable mid head in the market, but there are partial discharge of switchgear monitors.
Existing problem is that cable mid head is used as insulation weak spot, and running environment is severe, and insulating, it is impaired to be easy；Cable mid head part
When discharging serious, operation maintenance personnel can not be found.
Invention content
The present invention is at least one defect overcome described in the above-mentioned prior art, provides a kind of cable mid head shelf depreciation
On-line monitoring system can carry out real time on-line monitoring to cable mid head shelf depreciation situation.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of cable mid head shelf depreciation is online
Monitoring system includes medial head partial discharge tester, the information collection dress of the TEV signals for acquiring cable local discharge generation
It sets, information-communication device, terrestrial information processing unit, background system and distance terminal, the medial head partial discharge tester are believed
Harvester and information-communication device electrical connection are ceased, the information-communication device is communicated to connect with terrestrial information processing unit,
Terrestrial information communication device, background system and the distance terminal communicates to connect successively.
Further, the medial head partial discharge tester includes coil and capacitive coupled sensors, the coil loop
It is that medial head partial discharge tester is powered to be wound on cable and take electricity, what the capacitive coupled sensors detection cable shelf depreciation generated
TEV signals.
Further, the information collecting device is digital analog converter.
Further, the information-communication device is connect by optical fiber with terrestrial information processing unit.
Further, the distance terminal is mobile phone or tablet computer.
Further, the medial head partial discharge tester does waterproof insulation process by self-adhesive tape.
Compared with prior art, advantageous effect is：
（1）Partial Discharge Detecting Technology is applied on cable mid head；
（2）Partial discharge tester takes electricity using coil from cable, is not required to installation, replaces battery；
（3）Monitor cable mid head situation in real time, operation maintenance personnel can inquire cable mid head partial discharge situation, when partial discharge is exceeded at once
By warning information.
Description of the drawings
Fig. 1 is overall structure of the present invention.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of position relationship described in attached drawing
Illustrate, should not be understood as the limitation to this patent.
As shown in Figure 1, a kind of cable mid head partial discharge monitoring system, including be used to acquire cable local discharge
The medial head partial discharge testers 1 of the TEV signals of generation, information collecting device, information-communication device, terrestrial information processing unit 4,
Background system 5 and distance terminal 6, medial head partial discharge tester 1, information collecting device and the information-communication device are electrically connected
It connects, the information-communication device is communicated to connect with terrestrial information processing unit 4, the terrestrial information communication device, backstage
System 5 and distance terminal 6 communicate to connect successively.
Further, the medial head partial discharge tester 1 includes coil and capacitive coupled sensors, the coil loop
It is that medial head partial discharge tester 1 is powered to be wound on cable and take electricity, and the capacitive coupled sensors detection cable shelf depreciation generates
TEV signals.
Further, the information collecting device is digital analog converter.
Further, the information-communication device is connect by optical fiber with terrestrial information processing unit 4.
Further, the distance terminal 6 is mobile phone or tablet computer.
Further, the medial head partial discharge tester 1 does waterproof insulation process by self-adhesive tape.
Wherein, medial head partial discharge tester 1.By the coil being looped around on cable, take electricity that its work is supported to use from cable
Electricity；The TEV signal detections that shelf depreciation generates are come out using a capacitive coupled sensors.
Information collecting device.Convert the TEV analog signals that partial discharge tester detects to digital signal.
Information communication device.TEV data digital signals, cable mid head location information are transmitted through the fiber to and are positioned over
The terrestrial information processing unit 4 on ground.
Terrestrial information processing unit 4.TEV data digital signals are transmitted to background system 5 by wireless public network.
Background system 5.TEV data are stored and analyzed, by comparing the modes such as historical data, are judged among cable
Whether head partial discharge quantity is exceeded.
Operation maintenance personnel mobile phone.Judge through background system 5, the exceeded cable mid head information of partial discharge quantity includes TEV numbers
According to being sent to operation maintenance personnel mobile phone with position and send out alarm signal；Operation maintenance personnel can also each cable mid head office of real time inspection
Put data and historical data.
The specific implementation mode of this system is as follows：
Erection stage：After cable mid head is made, partial discharge tester and its electricity taking coil are installed around cable mid head, profit
Waterproof insulation process is done with insulating self-adhesive band, ensures that partial discharge tester TEV tests tight-lipped patch cable mid head；Information collection fills
It sets, information communication device is attached to together with partial discharge tester on cable mid head after integrating；Terrestrial information processing unit 4 is installed
It in ground, is connect by conducting wire, optical fiber between underground device, conducting wire is for taking electricity, optical fiber to be used for transmission data；It is main on backstage
Machine, mobile phone mount message store, handle, check system.
Operation phase：Medial head partial discharge tester 1 is examined using the TEV signals that capacitive coupled sensors generate shelf depreciation
It measures and, digital signal is converted by information collecting device TEV analog signals；Information communication device believes TEV data digitals
Number, cable mid head location information be transmitted through the fiber to the terrestrial information processing unit 4 for being positioned over ground；Terrestrial information processing
TEV data digital signals are transmitted to background host computer by device 4 by wireless public network；Background host computer system deposits TEV data
Storage and analysis judge whether cable mid head partial discharge quantity is exceeded by comparing the modes such as historical data；Through background system 5
Judge, the exceeded cable mid head information of partial discharge quantity includes that TEV data and position are sent to operation maintenance personnel mobile phone and send out
Alarm signal；Operation maintenance personnel can also pass through each cable mid head partial discharge data of mobile phone real time inspection and historical data.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (6)
1. a kind of cable mid head partial discharge monitoring system, which is characterized in that including being used to acquire cable local discharge
The medial head partial discharge tester of the TEV signals of generation（1）, information collecting device, information-communication device, terrestrial information processing unit
（4）, background system（5）And distance terminal（6）, the medial head partial discharge tester（1）, information collecting device and information communication
Device is electrically connected, the information-communication device and terrestrial information processing unit（4）Communication connection, terrestrial information communication
Device, background system（5）And distance terminal（6）It communicates to connect successively.
2. a kind of cable mid head partial discharge monitoring system according to claim 1, which is characterized in that described
Medial head partial discharge tester（1）Including coil and capacitive coupled sensors, it is medial head that the coil encircling takes electricity in cable
Partial discharge tester（1）Power supply, the TEV signals that the capacitive coupled sensors detection cable shelf depreciation generates.
3. a kind of cable mid head partial discharge monitoring system according to claim 1, which is characterized in that described
Information collecting device is digital analog converter.
4. a kind of cable mid head partial discharge monitoring system according to claim 1, which is characterized in that described
Information-communication device passes through optical fiber and terrestrial information processing unit（4）Connection.
5. a kind of cable mid head partial discharge monitoring system according to claim 1, which is characterized in that described
Distance terminal（6）For mobile phone or tablet computer.
6. a kind of cable mid head partial discharge monitoring system according to claim 1, which is characterized in that described
Medial head partial discharge tester（1）Waterproof insulation process is done by self-adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345304.XA CN108318792A (en) | 2018-04-17 | 2018-04-17 | A kind of cable mid head partial discharge monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810345304.XA CN108318792A (en) | 2018-04-17 | 2018-04-17 | A kind of cable mid head partial discharge monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN108318792A true CN108318792A (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810345304.XA Pending CN108318792A (en) | 2018-04-17 | 2018-04-17 | A kind of cable mid head partial discharge monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044851A (en) * | 2019-12-30 | 2020-04-21 | 广东电网有限责任公司 | Monitoring device for cable middle head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203241505U (en) * | 2013-05-14 | 2013-10-16 | 甘肃省电力公司金昌供电公司 | Portable cable insulation live detector and locator |
| CN103913679A (en) * | 2014-03-03 | 2014-07-09 | 国联思创（北京）科技有限公司 | Online monitoring system for partial discharge of high-voltage switch cabinet |
| CN204989404U (en) * | 2015-09-22 | 2016-01-20 | 袁孝红 | Cable partial discharge on -line monitoring system |
| CN106124940A (en) * | 2016-06-14 | 2016-11-16 | 国网北京市电力公司 | Submarine cable device for detecting partial discharge signal and system |
| CN208092182U (en) * | 2018-04-17 | 2018-11-13 | 广东电网有限责任公司 | A kind of cable mid head partial discharge monitoring system |
-
2018
- 2018-04-17 CN CN201810345304.XA patent/CN108318792A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203241505U (en) * | 2013-05-14 | 2013-10-16 | 甘肃省电力公司金昌供电公司 | Portable cable insulation live detector and locator |
| CN103913679A (en) * | 2014-03-03 | 2014-07-09 | 国联思创（北京）科技有限公司 | Online monitoring system for partial discharge of high-voltage switch cabinet |
| CN204989404U (en) * | 2015-09-22 | 2016-01-20 | 袁孝红 | Cable partial discharge on -line monitoring system |
| CN106124940A (en) * | 2016-06-14 | 2016-11-16 | 国网北京市电力公司 | Submarine cable device for detecting partial discharge signal and system |
| CN208092182U (en) * | 2018-04-17 | 2018-11-13 | 广东电网有限责任公司 | A kind of cable mid head partial discharge monitoring system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111044851A (en) * | 2019-12-30 | 2020-04-21 | 广东电网有限责任公司 | Monitoring device for cable middle head |
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