CN110133454A - A kind of electric insulation part leakage current monitoring device - Google Patents
A kind of electric insulation part leakage current monitoring device Download PDFInfo
- Publication number
- CN110133454A CN110133454A CN201910307065.3A CN201910307065A CN110133454A CN 110133454 A CN110133454 A CN 110133454A CN 201910307065 A CN201910307065 A CN 201910307065A CN 110133454 A CN110133454 A CN 110133454A
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- Prior art keywords
- monitoring device
- leakage current
- arithmetic element
- insulation part
- metallic conductor
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- 238000009413 insulation Methods 0.000 title claims abstract description 43
- 238000012806 monitoring device Methods 0.000 title claims abstract description 33
- 239000004020 conductor Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000012212 insulator Substances 0.000 claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000013307 optical fiber Substances 0.000 claims description 5
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000002146 bilateral effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000445129 Eremomyces bilateralis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
-
- 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
- G01R31/1245—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 line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention provides a kind of electric insulation part leakage current monitoring device, sequentially connected tested insulator, electrical interconnecting means, monitoring device and host computer are included, the monitoring device includes arithmetic element and the current acquisition equipment connecting respectively with arithmetic element, temperature and humidity and environment collector and transmission device；The current acquisition equipment calculates the tested insulator Leakage Current to the arithmetic element for acquiring, and the current acquisition equipment is equipped with metallic conductor, and the current acquisition equipment connects the electrical interconnecting means by the metallic conductor；The temperature and humidity and environment collector, for collection site weather data to the arithmetic element；The arithmetic element, for will pass through Fuzzy Calculation correcting current value after collected electric current and weather data superposition and send the data to the transmission device；The transmission device is observed in real time for revised Leakage Current data to be transmitted to the host computer.The present invention solves the problems, such as that insulating part can only be by manual inspection.
Description
Technical field
The invention belongs to electric insulation monitoring technical fields, and in particular to a kind of monitoring of electric insulation part leakage current is set
It is standby.
Background technique
Solid insulation is the equipment being widely used in power industry and high-voltage electrical equipment, generally by ceramics, silicon rubber,
The higher insulating materials of the dielectric constants such as glass, polytetrafluoro is made, for coupling charged electric power apparatus end and ground terminal, or neither
With the live end of power supply, support conducting wire is played, conductor galloping, isolation live end is put with ground terminal or is isolated the electrification of different electrical power
The effect at end.
Insulating part, which generally relies on, prolongs face and the insulation characterisitic of itself improves its insulating capacity outside it, when sleet filth causes
When its external insulation surface forms conductive channel, then it can generate ice and dodge or situations such as pollution flashover, cause electric system unstable, when ice dodges
Or pollution flashover is up to when continuously generating, insulating part from inside or can prolong face and be punctured by voltage difference of the two ends, to cause route or equipment short
Road is one of the major accident in electric system.
The leakage current for flowing through insulating part surface pollution layer that filth is measured by the time of tide under working voltage, as insulating part table
The direct inducement that face electric discharge occurs, leakage current is with the accumulation of surface pollution layer, and the overall process of dampness, its variation characteristic can
It is dynamically reflect the accumulation degree and wetness degree of pollution layer, that is, characterizes insulator essence close to the degree of pollution flashover, is preferably to supervise
Survey parameter.
Conventional insulating part inspection is all whether to have the sudden strain of a muscle that can regard sb. as an outsider by eye recognition by patrol officer, by the sense of hearing
Judge whether the subjective mode discrimination such as corona sound increase, exists without specific data reference, cannot exclude extraneous factor influence, and
It can not observe in real time, and be limited by insulating part installation site and height etc. to influence, patrol officer's subjective judgement can not be accurately anti-
Reflect objective phenomenon.
Summary of the invention
The object of the present invention is to provide a kind of electric insulation part leakage current monitoring devices, can only be relied on solving insulating part
The problem of manual inspection.
The present invention provides the following technical solutions:
A kind of electric insulation part leakage current monitoring device, including sequentially connected tested insulator, electrical interconnecting means, monitoring
Equipment and host computer, the monitoring device include that arithmetic element and the current acquisition connecting respectively with the arithmetic element are set
Standby, temperature and humidity and environment collector and transmission device；
The current acquisition equipment calculates the tested insulator Leakage Current to the arithmetic element, institute for acquiring
Current acquisition equipment is stated equipped with metallic conductor, the current acquisition equipment described in metallic conductor connection by electrically connecting
Part；
The temperature and humidity and environment collector, for collection site weather data to the arithmetic element；
The arithmetic element, for Fuzzy Calculation correcting current value will to be passed through after collected electric current and weather data superposition
And send the data to the transmission device；
The transmission device is observed in real time for revised Leakage Current data to be transmitted to the host computer.
Preferably, the electrical interconnecting means are ring-buckling type electrical interconnecting means or spool electrical interconnecting means.
Preferably, the ring-buckling type electrical interconnecting means are located at the tested insulator dielectric end, and the ring-buckling type electrically connects
Part is connect by electric lead with the metallic conductor.
Preferably, spool electrical interconnecting means one end connects the metallic conductor, and the other end is connected with oxidation zinc-type continuously
Gap coupling arrangement, the oxidation zinc-type zero-clearance coupling device pass sequentially through electric lead and metal fixture and the tested insulator
Connection.
Preferably, the metallic conductor surface is equipped with solid insulating layer, and the quantity of the metallic conductor is two, an institute
It states metallic conductor and the electrical interconnecting means is connected by electric lead, another described metallic conductor passes through ground connection.
Preferably, the electric lead is high insulation low resistance electric lead.
Preferably, it is that cable, optical fiber, WIFI or GPRS connect that the transmission device, which transfers data to the transmission mode of host computer,
Connect transmission.
Preferably, the host computer is computer, handheld device or mobile phone.
Preferably, the monitoring device is fixedly connected on pillar by fastener, and the arithmetic element is also connected with electricity
Source.
The beneficial effects of the present invention are: this equipment connects tested insulator by electrical interconnecting means, it is suitable for any electrification feelings
It is used under condition, real-time monitoring discharge current of insulation piece；Equipment is caused by temperature and humidity and environment collector modifying factor extraneous factor
Acquisition current break, can Leakage Current on effective real-time monitoring insulating part and extrapolate insulating part because of external environment or
The decline of insulating capacity caused by self-defect, and digitized data are provided and are convenient for judging the state of insulating part.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 is unilateral voltage form mounting structure schematic diagram of the invention；
Fig. 2 is bilateral voltage form mounting structure schematic diagram of the present invention；
Fig. 3 is three mounting structure schematic diagram of the embodiment of the present invention；
In the figure, it is marked as 1. pillars；2. ring-buckling type electrical interconnecting means；3. unilateral voltage insulation；4. electric lead；5. metal is led
Body；6. ground connection；7. ground line；8. current acquisition equipment；9. monitoring device；10. arithmetic element；11. temperature and humidity and environment acquisition
Device；12. host computer；13. transmission mode；14. transmission device；15. power supply；16. fastener；17. bilateral voltage insulation；18.
Metal fixture；19. aoxidizing zinc-type zero-clearance coupling device；20. spool electrical interconnecting means；21. high-tension switch gear.
Specific embodiment
Embodiment one:
As shown in Figure 1, installing unilateral voltage form for insulator, i.e., unilateral voltage insulation 3 sets to be tested existing electric appliance
Standby, unilateral voltage insulation 3 is located at 1 side of pillar, and ring-buckling type electrical interconnecting means 2 are securedly mounted to the exhausted of unilateral voltage insulation 3
Edge end, it is another by the metallic conductor 5 with external solid insulation of high low resistance electric lead 4 connection and monitoring device 9 of insulating
A metallic conductor 5 with external solid insulation is connected by ground line 7 with the earth 6, and two metals with external solid insulation are led
The other end of body 5 is connected in precision current acquisition equipment 8, and acquires calculating current in precision current acquisition equipment 8, warm and humid
Degree and 11 collection site weather data of environment collector, by Fuzzy Calculation correcting current value and by data in arithmetic element 10
It is sent to transmission device 14, transmission mode 13 can be and wired will count as cable, optical fiber are also possible to wireless WIFI, GPRS
According to host computer 12 is transmitted to, host computer 12 can be computer and be also possible to handheld device or mobile phone.Further, monitoring device
9 are coupled by fastener 16 with pillar 1, and the working power of monitoring device 9 is accessed by power supply 15 supplies.
Embodiment two:
As shown in Fig. 2, installing bilateral voltage form for insulator, i.e. bilateral voltage insulation 17 sets to be tested existing electric appliance
Standby, metal fixture 18 couples height insulation low resistance electric lead 4 with sub 17 sides of bilateral voltage insulation, height insulation low resistance conductance
The other side of line 4 couple with oxidation zinc-type zero-clearance coupling device 19, and spool electrical interconnecting means 20 are by high insulation low resistance electric lead 4
One end with oxidation 19 spool exit of zinc-type zero-clearance coupling device couple, the other end be attached to monitoring device 9 with external solid
The metallic conductor 5 of body insulation, another metallic conductor 5 with external solid insulation are connected by ground line 7 with the earth 6, and two
The other end of metallic conductor 5 with external solid insulation is connected in precision current acquisition equipment 8, and is set in precision current acquisition
Calculating current, 11 collection site weather data of temperature and humidity and environment collector, by fuzzy in arithmetic element 10 are acquired in standby 8
It calculates correcting current value and simultaneously sends the data to transmission device 14, transmission mode 13 can be wired as cable, optical fiber can also
To be that wireless WIFI, GPRS send data to host computer 12, host computer 12 can be computer and be also possible to handheld device
Or mobile phone.Further, monitoring device 9 is coupled by fastener 16 with pillar 1, and the working power of monitoring device 9 is by power supply 15
Access supply.
Embodiment three:
As shown in figure 3, form can also be installed as Fig. 3, dotted line part when 9 use of monitoring device is on electrical equipment
Dividing high-voltage switch equipment 21 is existing tested electrical equipment, and high-tension switch gear 21 is located on pillar 1, ring-buckling type electrical interconnecting means
2 are securedly mounted to the insulator end of high-tension switch gear 21, pass through height insulation low resistance electric lead 4 connection and monitoring device 9
The metallic conductor 5 with external solid insulation, another metallic conductor 5 with external solid insulation by ground line 7 with the earth 6
It is connected, the other end of two metallic conductors 5 with external solid insulation is connected in precision current acquisition equipment 8, and in precision
Calculating current, 11 collection site weather data of temperature and humidity and environment collector, in arithmetic element 10 are acquired in current acquisition equipment 8
Interior to pass through Fuzzy Calculation correcting current value and send the data to transmission device 14, transmission mode 13 can be wired such as net
Line, optical fiber are also possible to wireless WIFI, GPRS and send data to host computer 12, and host computer 12 can be computer can also be with
It is handheld device or mobile phone.Further, monitoring device 9 is coupled by fastener 16 with pillar 1, the work electricity of monitoring device 9
Source is accessed by power supply 15 and is supplied.
As shown in Figure 1-Figure 3, a kind of electric insulation part leakage current monitoring device in use, when tested insulating part
On when flowing through Leakage Current, which can detecte Leakage Current, passes through precision current and acquires the acquisition leakage of equipment 8
Electric current is superimposed the data correction of temperature and humidity and environment collector 11 because extraneous factor caused by environment influences, and according to fuzzy calculation
Method calculates practical Leakage Current numerical value, is uploaded data in real time by arithmetic element 10 and transmission device 14, and monitoring device 9 can be with
Leakage Current on effective real-time monitoring insulating part simultaneously extrapolates insulating part because of insulation caused by external environment or self-defect
The decline of ability, and digitized data are provided and are convenient for judging the state of insulating part.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of electric insulation part leakage current monitoring device, which is characterized in that including sequentially connected tested insulator, Electricity Federation
Fitting, monitoring device and host computer, the monitoring device include arithmetic element and the electricity that connect respectively with the arithmetic element
Stream acquisition equipment, temperature and humidity and environment collector and transmission device；
The current acquisition equipment calculates the tested insulator Leakage Current to the arithmetic element, the electricity for acquiring
Stream acquisition equipment is equipped with metallic conductor, and the current acquisition equipment connects the electrical interconnecting means by the metallic conductor；
The temperature and humidity and environment collector, for collection site weather data to the arithmetic element；
The arithmetic element, for will collected electric current and weather data superposition after by Fuzzy Calculation correcting current value and will
Data are sent to the transmission device；
The transmission device is observed in real time for revised Leakage Current data to be transmitted to the host computer.
2. a kind of electric insulation part leakage current monitoring device according to claim 1, which is characterized in that described to electrically connect
Part is ring-buckling type electrical interconnecting means or spool electrical interconnecting means.
3. a kind of electric insulation part leakage current monitoring device according to claim 2, which is characterized in that the ring-buckling type
Electrical interconnecting means are located at the tested insulator dielectric end, and the ring-buckling type electrical interconnecting means pass through electric lead and the metallic conductor
Connection.
4. a kind of electric insulation part leakage current monitoring device according to claim 2, which is characterized in that the spool electricity
Connector one end connects the metallic conductor, and the other end is connected with oxidation zinc-type zero-clearance coupling device, the oxidation zinc-type without
Gap coupling arrangement passes sequentially through electric lead and metal fixture and connect with the tested insulator.
5. a kind of electric insulation part leakage current monitoring device according to claim 1, which is characterized in that the metal is led
Body surface face is equipped with solid insulating layer, and the quantity of the metallic conductor is two, and a metallic conductor is connected by electric lead
The electrical interconnecting means, another described metallic conductor pass through ground connection.
6. a kind of electric insulation part leakage current monitoring device according to claim 5, which is characterized in that the electric lead
For height insulation low resistance electric lead.
7. a kind of electric insulation part leakage current monitoring device according to claim 1, which is characterized in that the transmission is set
The standby transmission mode for transferring data to host computer is cable, optical fiber, WIFI or GPRS connection transmission.
8. a kind of electric insulation part leakage current monitoring device according to claim 1, which is characterized in that the host computer
For computer, handheld device or mobile phone.
9. a kind of electric insulation part leakage current monitoring device according to claim 1, which is characterized in that the monitoring is set
Standby to be fixedly connected on pillar by fastener, the arithmetic element is also connected with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307065.3A CN110133454A (en) | 2019-04-17 | 2019-04-17 | A kind of electric insulation part leakage current monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307065.3A CN110133454A (en) | 2019-04-17 | 2019-04-17 | A kind of electric insulation part leakage current monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110133454A true CN110133454A (en) | 2019-08-16 |
Family
ID=67570015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910307065.3A Pending CN110133454A (en) | 2019-04-17 | 2019-04-17 | A kind of electric insulation part leakage current monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110133454A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316851A (en) * | 2014-10-30 | 2015-01-28 | 国网上海市电力公司 | Method and device for automatically monitoring pollution of line insulators |
| CN105116273A (en) * | 2015-08-26 | 2015-12-02 | 芜湖市凯鑫避雷器有限责任公司 | Insulator on-line monitoring system |
| US20170146588A1 (en) * | 2014-09-29 | 2017-05-25 | Mitsubishi Electric Corporation | Insulation degradation monitoring device |
| CN106771806A (en) * | 2016-12-13 | 2017-05-31 | 国网山东省电力公司电力科学研究院 | A kind of Voltage for Insulators on HV Lines surface filth state remote viewing method of telemetering and system |
| CN108172351A (en) * | 2016-12-07 | 2018-06-15 | 中国电力科学研究院 | A kind of grading ring for enhancing transmission circuit insulator string dielectric strength |
| CN207817105U (en) * | 2017-11-29 | 2018-09-04 | 国网湖北省电力有限公司检修公司 | A kind of electric transmission line isolator pollution flashover automatic visual observation system |
| CN108535546A (en) * | 2018-05-30 | 2018-09-14 | 广东电网有限责任公司 | Insulator surface monitored conductivity system and method |
-
2019
- 2019-04-17 CN CN201910307065.3A patent/CN110133454A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170146588A1 (en) * | 2014-09-29 | 2017-05-25 | Mitsubishi Electric Corporation | Insulation degradation monitoring device |
| CN104316851A (en) * | 2014-10-30 | 2015-01-28 | 国网上海市电力公司 | Method and device for automatically monitoring pollution of line insulators |
| CN105116273A (en) * | 2015-08-26 | 2015-12-02 | 芜湖市凯鑫避雷器有限责任公司 | Insulator on-line monitoring system |
| CN108172351A (en) * | 2016-12-07 | 2018-06-15 | 中国电力科学研究院 | A kind of grading ring for enhancing transmission circuit insulator string dielectric strength |
| CN106771806A (en) * | 2016-12-13 | 2017-05-31 | 国网山东省电力公司电力科学研究院 | A kind of Voltage for Insulators on HV Lines surface filth state remote viewing method of telemetering and system |
| CN207817105U (en) * | 2017-11-29 | 2018-09-04 | 国网湖北省电力有限公司检修公司 | A kind of electric transmission line isolator pollution flashover automatic visual observation system |
| CN108535546A (en) * | 2018-05-30 | 2018-09-14 | 广东电网有限责任公司 | Insulator surface monitored conductivity system and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |
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