CN207964962U - A kind of electric lightning digitlization on-Line Monitor Device - Google Patents
A kind of electric lightning digitlization on-Line Monitor Device Download PDFInfo
- Publication number
- CN207964962U CN207964962U CN201721704173.7U CN201721704173U CN207964962U CN 207964962 U CN207964962 U CN 207964962U CN 201721704173 U CN201721704173 U CN 201721704173U CN 207964962 U CN207964962 U CN 207964962U
- Authority
- CN
- China
- Prior art keywords
- circuit
- lightning
- line monitor
- zero flux
- monitor device
- 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.)
- Active
Links
- 230000004907 flux Effects 0.000 claims abstract description 22
- 230000003321 amplification Effects 0.000 claims abstract description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 208000025274 Lightning injury Diseases 0.000 description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000004891 communication Methods 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 229960001296 zinc oxide Drugs 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model is related to a kind of electric lightnings to digitize on-Line Monitor Device, including：Zero flux current sensor, filter amplification circuit, numeralization collecting device, telecommunication circuit, intelligent electronic device and background system；The Zero flux current sensor is mounted on power line, its output end connects the filter amplification circuit, the filter amplification circuit connects the numeralization collecting device, the numeralization collecting device connects the intelligent electronic device by telecommunication circuit, and the intelligent electronic device connects the background system.Electric lightning provided by the utility model digitizes on-Line Monitor Device, acquires leakage current of an arrester using Zero flux sensor, filter amplification circuit and numeralization collecting device, current in resistance property is isolated, according to current in resistance property Trend judgement arrester operating status.Installation amount is few, reliability is high, solves the problems, such as that electric lightning is monitored on-line.
Description
Technical field
The utility model is related to a kind of electric lightnings to digitize on-Line Monitor Device, belong to power system device technology neck
Domain.
Background technology
Metal oxide arrester (Metal Oxide Surge Arrester, MOA) is to ensure power system security fortune
One of capable important equipment can effectively inhibit the thunder and lightning transmitted by circuit overvoltage or operation to cause internal overvoltage.Metal oxygen
The operational reliability of compound arrester directly affects power system security, stabilization.
Since Zinc-Oxide Arrester is without series gap, when bearing power grid normal operating voltage, ontology is small by one
Electric current, wherein active component will cause zinc oxide valve plate to generate heat, and then cause the variation of C-V characteristic.It will make oxygen under long term
Change zinc valve block aging, it may finally thermal breakdown.
In order to avoid the huge electric system economic loss that arrester causes by accident, ensure its due protective effect,
It is continuous, effectively find out its operating status and parameters it is necessary to survey arrester, in order to find defect in time, from basic
On avoid the insulation fault of MOA from generating.So the real-time state monitoring of Zinc-Oxide Arrester and diagnosis are indispensable.
Invention content
The utility model will solve technical problem：The shortcomings that overcoming above-mentioned technology.A kind of real time on-line monitoring electricity is provided
The digitlization on-Line Monitor Device of power arrester.
In order to solve the above-mentioned technical problem, the utility model proposes technical solution be：A kind of electric lightning digitlization
On-Line Monitor Device, including：Zero flux current sensor, filter amplification circuit, numeralization collecting device, telecommunication circuit, intelligence
Electronic equipment and background system；The Zero flux current sensor is mounted on power line, and the output end connection filtering is put
Big circuit, the filter amplification circuit connect the numeralization collecting device, and the numeralization collecting device passes through telecommunication circuit
The intelligent electronic device is connected, the intelligent electronic device connects the background system.
Said program, which further improves, to be：The Zero flux current sensor is non-contact punching Zero flux sensing
Device.
Said program, which further improves, to be：The filter amplification circuit includes sequentially connected impact protection circuit,
Amplifying circuit, filter circuit, energy let out discharge protection circuit and secondary amplifying circuit.
Said program, which further improves, to be：The numeralization collecting device includes signal processing circuit, current acquisition
Circuit, Acquisition Circuit of being struck by lightning, A/D conversion circuits, counting circuit, processor and power supply circuit, the signal processing circuit it is defeated
Enter end and connect the filter amplification circuit, output end is separately connected counting circuit A/D conversion circuits and counting circuit；The A/
D conversion circuits and counting circuit are separately connected processor；The processor is connected with display module, key-press module, interface module
And memory device；The power supply circuit is the signal processing circuit, current collection circuit, Acquisition Circuit of being struck by lightning, A/D conversion electricity
Road, counting circuit, processor, display module, key-press module, interface module and memory device power supply.
Said program, which further improves, to be：The power supply circuit includes battery, voltage transformation module and solar-electricity
Pond plate.
Electric lightning provided by the utility model digitizes on-Line Monitor Device, is put using Zero flux sensor, filtering
Big circuit and numeralization collecting device acquire leakage current of an arrester, current in resistance property are isolated, according to current in resistance property Trend judgement
Arrester operating status.Installation amount is few, reliability is high, solves the problems, such as that electric lightning is monitored on-line.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is a preferred embodiment structural schematic diagram of the utility model embodiment.
Fig. 2 is Zero flux current sensor and filter amplification circuit schematic diagram.
Fig. 3 is numeralization collecting device schematic diagram.
Specific implementation mode
Embodiment
The electric lightning digitlization on-Line Monitor Device of the present embodiment, such as Fig. 1, including：Zero flux current sense, filtering
Amplifying circuit, numeralization collecting device 3, telecommunication circuit, intelligent electronic device 4 and background system 5；Zero flux current sensor is pacified
On the power line 1, output end connects filter amplification circuit to dress, and filter amplification circuit connects numeralization collecting device 3, digitlization
Harvester 3 connects intelligent electronic device 4 by telecommunication circuit, and 4 equipment of smart electronics connects background system 5.
In the present embodiment, Zero flux current sensor is non-contact punching Zero flux sensor.Such as Fig. 2, Zero flux electricity
Flow sensor is used for incuding detection leakage current of an arrester, and wave amplifying circuit converts leakage current of an arrester and exports.Filtering is put
Big circuit includes sequentially connected impact protection circuit, an amplifying circuit, filter circuit, and energy lets out discharge protection circuit and secondary
Amplifying circuit.
Zero flux current sensor selects high permeability toroidal iron core with the current sensor in filter amplification circuit, by one
Rated transformation ratio is wound with electric current winding and compensative winding, ensures the precision of current transformation precision and angular difference.Source signal is in 0.1mA ~ 1A wide
There are good linear relationship, output signal amplitude to be proportional to source signal in range, angular difference is less than 1 point.After source signal is more than 1A
Sensor gradually tends to be saturated.With fabulous temperature characterisitic and anti-electromagnetic field interference performance, meet the electromagnetic field of substation's complexity
The accuracy for being on the waiting list sample is divided into interference.Filter amplification circuit is amplified using the two level of profound and negative feedbck, is designed before every grade of amplifier
Circuit and filter circuit, profound and negative feedbck design is protected to ensure that signal amplitude and phase are undistorted, and protection is follow-up in lightning stroke
Numeralization collecting device and amplifying circuit itself safety.Amplifying circuit selects high gain, bandwidth, small power consumption, response fast
Chip.
Zero flux current sensor is mounted on filter amplification circuit in a stainless steel casing, is powered by waterproof terminal
And output signal, one Zero flux sensor is installed per the non-contact punching of phase arrester, a digitlization is installed per three-phase and is adopted
Acquisition means 3.Non-contact punching installation ensures that the detection device of the present embodiment is not directly contacted with primary equipment, does not change primary
Equipment running status ensures the electrical isolation of forceful electric power and light current.
Telecommunication circuit completes single machine or real-time communication function.The occasion of on-line monitoring system is not needed, main complete is communicated
Storage data are uploaded portable analysis apparatus, complete off line data analysis.The occasion of on-line monitoring system, communication is needed to complete
Data are uploaded to intelligent electronic device 4 in real time.Telecommunication circuit uses RS485 communication modes, RS-485 to use differential signal, interface
Signal level is low, compatible with Transistor-Transistor Logic level, and communication distance is remote, and peak transfer rate increases up to 10Mbps, anti-common mode interference ability
By force, noise immunity is good.Telecommunication circuit selects MAX485 chips, is designed by typical circuit.
Such as Fig. 3, numeralization collecting device includes signal processing circuit, current collection circuit, Acquisition Circuit of being struck by lightning, and A/D turns
Circuit, counting circuit, processor and power supply circuit are changed, the input terminal of signal processing circuit connects filter amplification circuit, output
End is separately connected counting circuit A/D conversion circuits and counting circuit；A/D conversion circuits and counting circuit are separately connected processor；
Processor is connected with display module, key-press module, interface module and memory device；Power supply circuit is signal processing circuit, electric current
Acquisition Circuit, be struck by lightning Acquisition Circuit, A/D conversion circuits, counting circuit, processor, show module, key-press module, interface module and
Memory device is powered.Power supply circuit includes battery, voltage transformation module and solar panel, and use is solar powered, also may be used
To use mains-supplied.
Signal processing circuit mainly completes the input range for input signal being amplified to after isolation A/D conversion circuits, and
Carry out Signal Pretreatment.According to the three-phase power transmission principle in China, each phase is required for anti-lightning strike, therefore the input of 3 tunnels is shared, per road
A/D conversion circuits and counting circuit are respectively fed to after Signal Pretreatment./ D conversion circuits select ADS8327 chips, the chip to adopt
Sample resolution ratio is 16bit, and 500KSPS is serial（SPI is exported）ADC, 2.7V ~ 5.5V supply voltage, power consumption only 10.6mW.AD conversion
Data afterwards carry out quick FFT operations, extract total current fundamental wave and 3,5,7 inferior harmonic datas, and be based on relative measurement method
ABC three-phase lightning protector current in resistance property is calculated separately, is project data through scale conversion.
Lightning stroke Acquisition Circuit is used to count number of lightning strokes, is made of signal wave elimination, shaping, filtering, counting circuit,
ABC three-phase number of lightning strokes is counted respectively.Number of lightning strokes is sentenced by total current threshold value, lightning stroke duration and lightning stroke blocking time
It is disconnected.When leakage current is more than total current threshold value and is judged as occurring once being struck by lightning within the lightning stroke duration, and and then one
Segment is struck by lightning in blocking time if there is the sampled point more than total current threshold value, is not judged to being struck by lightning next time.
Memory device completes arrange parameter storage, cumulative number, lightning stroke time, total current, the storage of current in resistance property data, presses
Design requirement, cumulative number, lightning stroke time permanently store；Total current, current in resistance property at least preserve three annual datas.In memory device
Parameter storage select FM24LC04 chips, data storage select IS62WV102416.
Processor in numeralization collecting device uses STM32F407Zet6 microcontrollers, and the microcontroller is using ARM32
Cortex-M3 CPU, highest 72MHz working frequencies, the SRAM of FLASH program memory, 64K bytes with 512K bytes,
The static memory controller of 4 pieces choosing.Support CF cards, SRAM, PSRAM, NOR and nand memory, parallel LCD interfaces.
Up to 1.25DMips/MHz, monocycle multiplication and hardware division when 0 latent period of memory accesses, there is clock, reset and
Power management, it is low in energy consumption, there are 11 timers and 13 communication interfaces.SCM peripheral is designed with external clock, resets（On
Electricity and button）Circuit, watchdog circuit and program burn writing interface.
Power supply circuit designs two kinds of powering modes according to in-site installation situation：It needs to constitute arrester on-line monitoring system
Occasion needs the occasion for communicating teletransmission using 220V power supplies, when construction lays 220V feed cables and communication cable respectively.
220V becomes direct current 12V power supplies by Switching Power Supply.The occasion that teletransmission need not be communicated, using solar energy and battery joint power supply
Mode.The power management of power supply circuit selects TP5100 chips to carry out management of charging and discharging, and the direct current 12V of input is filled to battery
Electricity, while other electricity consumption parts are given in output.It selects TPS65130 chips that cell voltage is transformed to ± 12V and gives Zero flux sensor
Power supply.3 TLV62130RGT chips are selected to export two 3.3V and 5.0V respectively, 5.0V powers to telecommunication circuit, two 3.3V
It gives digital circuit and analog circuit to power respectively, prevents crosstalk between digital circuit and analog circuit signal.
The specific technical solution that the utility model is not limited to the above embodiment, in addition to the implementation, the utility model
There can also be other embodiment.All technical solutions formed using equivalent replacement, are the protection model of the requires of the utility model
It encloses.
Claims (5)
1. a kind of electric lightning digitizes on-Line Monitor Device, which is characterized in that including：Zero flux current sensor, filtering
Amplifying circuit, numeralization collecting device, telecommunication circuit, intelligent electronic device and background system；The Zero flux current sensor
On power line, output end connects the filter amplification circuit, and the filter amplification circuit connection digitlization is adopted
Acquisition means, the numeralization collecting device connect the intelligent electronic device by telecommunication circuit, and the intelligent electronic device connects
Connect the background system.
2. electric lightning according to claim 1 digitizes on-Line Monitor Device, it is characterised in that：The Zero flux electricity
Flow sensor is non-contact punching Zero flux sensor.
3. electric lightning according to claim 1 digitizes on-Line Monitor Device, it is characterised in that：The filter and amplification
Circuit includes sequentially connected impact protection circuit, an amplifying circuit, filter circuit, and energy is let out discharge protection circuit and secondary put
Big circuit.
4. electric lightning according to claim 1 digitizes on-Line Monitor Device, it is characterised in that：The digitlization is adopted
Acquisition means include signal processing circuit, current collection circuit, Acquisition Circuit of being struck by lightning, A/D conversion circuits, counting circuit, processor
And power supply circuit, the input terminal of the signal processing circuit connect the filter amplification circuit, output end is separately connected counting
Circuit A/D conversion circuits and counting circuit；The A/D conversion circuits and counting circuit are separately connected processor；The processor
It is connected with display module, key-press module, interface module and memory device；The power supply circuit is the signal processing circuit, electricity
Acquisition Circuit is flowed, Acquisition Circuit of being struck by lightning, A/D conversion circuits, counting circuit, processor, display module, key-press module, interface mould
Block and memory device power supply.
5. electric lightning according to claim 4 digitizes on-Line Monitor Device, it is characterised in that：The power supply circuit
Including battery, voltage transformation module and solar panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704173.7U CN207964962U (en) | 2017-12-08 | 2017-12-08 | A kind of electric lightning digitlization on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704173.7U CN207964962U (en) | 2017-12-08 | 2017-12-08 | A kind of electric lightning digitlization on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207964962U true CN207964962U (en) | 2018-10-12 |
Family
ID=63728987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721704173.7U Active CN207964962U (en) | 2017-12-08 | 2017-12-08 | A kind of electric lightning digitlization on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207964962U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333407A (en) * | 2019-07-05 | 2019-10-15 | 安徽斯派迪电气技术有限公司 | Intelligent metal oxide arrester |
| CN110346680A (en) * | 2019-08-19 | 2019-10-18 | 大连世有电力科技有限公司 | A kind of arrester on-Line Monitor Device directly exporting current in resistance property |
| CN114002475A (en) * | 2021-10-22 | 2022-02-01 | 深圳抛物线科技有限公司 | Lightning arrester resistive current on-line monitoring method |
-
2017
- 2017-12-08 CN CN201721704173.7U patent/CN207964962U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333407A (en) * | 2019-07-05 | 2019-10-15 | 安徽斯派迪电气技术有限公司 | Intelligent metal oxide arrester |
| CN110346680A (en) * | 2019-08-19 | 2019-10-18 | 大连世有电力科技有限公司 | A kind of arrester on-Line Monitor Device directly exporting current in resistance property |
| CN114002475A (en) * | 2021-10-22 | 2022-02-01 | 深圳抛物线科技有限公司 | Lightning arrester resistive current on-line monitoring method |
| CN114002475B (en) * | 2021-10-22 | 2024-03-29 | 深圳抛物线科技有限公司 | Online monitoring method for resistive current of lightning arrester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103760454B (en) | MOV lightning arrester leakance detection device, long distance control system and method | |
| CN204575720U (en) | Based on the transmission line of electricity current monitoring device that induction electricity getting device is powered | |
| CN204442008U (en) | A kind of intelligent type low-voltage comprehensive distribution cabinet | |
| CN207964962U (en) | A kind of electric lightning digitlization on-Line Monitor Device | |
| CN105911344A (en) | Intelligent electric energy meter supporting electric leakage protection | |
| CN106932675A (en) | For the monitoring device of arrester | |
| CN203339659U (en) | Single-phase electric leakage protection and power supply automation recovery device | |
| CN204925226U (en) | Blocking device is gathered to high voltage live display wide region | |
| CN207851189U (en) | Leakage conductor on-Line Monitor Device | |
| CN105467197B (en) | Integrated arrester on-Line Monitor Device | |
| CN202583309U (en) | Intelligent digital zinc oxide lightning arrester on-line monitor | |
| CN205786883U (en) | A kind of arrester on-line monitoring system | |
| CN205958658U (en) | Arrester on -line monitor | |
| CN203349964U (en) | Self-energy-obtaining wireless temperature sensing chip | |
| CN203422401U (en) | Intelligent electric meter box | |
| CN206804755U (en) | Monitoring device for arrester | |
| CN105823949A (en) | Lightning arrester online monitor | |
| Sheng et al. | Ultra-low power wireless-online-monitoring platform for transmission line in smart grid | |
| CN204668919U (en) | A kind of intelligent transformer protective device | |
| CN209231445U (en) | A kind of arrester ground fault monitoring device based on Internet of Things Network Communication | |
| CN204789741U (en) | A voltage detecting system for domestic intelligent power distribution system | |
| CN209786771U (en) | Railway construction high-voltage cable branch box with self-contained power supply protection | |
| CN203562840U (en) | Power distribution equipment on-line monitoring early-warning terminal | |
| CN102735289A (en) | Wireless digital monitoring sensor for electrical equipment | |
| CN109375036A (en) | A kind of arrester ground fault monitoring device based on Internet of Things Network Communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |