CN109116097A - A kind of arrester hybrid current recording on-Line Monitor Device - Google Patents
A kind of arrester hybrid current recording on-Line Monitor Device Download PDFInfo
- Publication number
- CN109116097A CN109116097A CN201811142105.5A CN201811142105A CN109116097A CN 109116097 A CN109116097 A CN 109116097A CN 201811142105 A CN201811142105 A CN 201811142105A CN 109116097 A CN109116097 A CN 109116097A
- Authority
- CN
- China
- Prior art keywords
- current
- arrester
- circuit
- main control
- conversion circuit
- 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
- 230000001052 transient effect Effects 0.000 claims abstract description 48
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims description 11
- 238000004891 communication Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 5
- 230000010363 phase shift Effects 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 16
- 230000006870 function Effects 0.000 description 11
- 208000025274 Lightning injury Diseases 0.000 description 10
- 238000005070 sampling Methods 0.000 description 10
- 229960001296 zinc oxide Drugs 0.000 description 8
- 239000011787 zinc oxide Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
Abstract
The invention discloses a kind of arrester hybrid current recording on-Line Monitor Devices, including mixed electronic formula Rogowski current transformer and main control module；Mixed electronic formula Rogowski current transformer is connected on arrester, is measured to the running current, lightning impulse current and switching impulse current of arrester, and measurement data is sent to main control module by optical fiber；Main control module judges the operation conditions of arrester according to measurement data.On-Line Monitor Device design of the invention is reasonable, utilize mixed electronic formula Rogowski current transformer, power application electronic technology and Digital Signal Processing, it realizes the function to arrester stable state, transient current recording and on-line real time monitoring, has many advantages, such as to detect current precision height, strong antijamming capability.
Description
Technical field
The present invention relates to arrester technical fields, and in particular to a kind of arrester hybrid current recording on-Line Monitor Device.
Background technique
Zinc-Oxide Arrester is that power station, substation and transmission line of electricity are used to that various electrical equipments in electric system is protected to exempt from
It is one of the important protection equipment for guaranteeing safe operation of power system by the electric product that overvoltage is damaged.Zinc-Oxide Arrester
Main function be to absorb lightning surge, the impact energy of switching overvoltage etc., prevent overvoltage damage power equipment and use
Electric equipment.Since Zinc-Oxide Arrester bears the influence meeting of continuous running voltage, surge voltage and various external factor for a long time
The aging of accelerating resistor piece, insulating properties increase by then generation current in resistance property is destroyed, and power consumption increases, and leads to Zinc-Oxide Arrester
Thermal runaway and the accidents such as breakdown and explosion occur.To guarantee that Zinc-Oxide Arrester operates normally, need to detect Zinc-Oxide Arrester shape
State and overvoltage number of shocks.
Currently, generally being run by single current transformer or common active sensor device to Zinc-Oxide Arrester
The monitoring of (leakage) electric current, cooperative mechanical formula lightning stroke counter realize counting thunder or pass through active sensor element senses arrester
The arrester end shield signal of earth-return circuit, being converted becomes lightning stroke data-signal, completes counting thunder.Above-mentioned technical proposal,
Frequency response range is small, detection accuracy is low and tends not to instead in the case where interfering stronger environment to the testing result of leakage current
Truth is reflected, the monitors failure to arrester is caused.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of designs rationally, detection accuracy is high, anti-interference
The strong arrester hybrid current recording on-Line Monitor Device of ability.
To achieve the above object, the technical scheme is that
A kind of arrester hybrid current recording on-Line Monitor Device, including mixed electronic formula Rogowski current transformer and
Main control module；Mixed electronic formula Rogowski current transformer is connected on arrester, is rushed to running current, the thunder and lightning of arrester
It hits electric current and switching impulse current measures, and measurement data is sent to main control module by optical fiber；Main control module according to
Measurement data judges the operation conditions of arrester.
As an improvement of the present invention, the mixed electronic formula Rogowski current transformer includes running current sieve
Family name's coil, transient current Rogowski coil, outer integrating circuit, from integrating circuit, running current ADC conversion circuit, transient current ADC
Conversion circuit, arm processor, A/D sequential control circuit, CPLD and electro-optical conversion circuit；Running current Rogowski coil, outer integral
Circuit, running current ADC conversion circuit and arm processor are sequentially connected；Transient current Rogowski coil, from integrating circuit, transient state
Electric current ADC conversion circuit and arm processor are sequentially connected；Arm processor also respectively by A/D sequential control circuit, CPLD with
Running current ADC conversion circuit, the connection of transient current ADC conversion circuit；Electro-optical conversion circuit one end is connect with arm processor,
The other end is connect by optical fiber with main control module.
Further, sequentially connected shifting is additionally provided between the outer integrating circuit and running current ADC conversion circuit
Circuitry phase and filter circuit, it is described that difference ADC driving is additionally provided between integrating circuit and transient current ADC conversion circuit
Device.
As an improvement of the present invention, the main control module includes ARM main control processor and coupled DSP
Coprocessor, power-fail detection circuit, photoelectric conversion circuit, running current memory, transient current memory, FLASH memory,
Human-computer interaction module, wireless communication module；Photoelectric conversion circuit passes through optical fiber and mixed electronic formula Rogowski current transformer
Connection；Wireless communication module is connect with long-range monitoring center；Running current memory and transient current memory are also electric with one
Pond connection, the battery are connect with power-fail detection circuit.
Further, the ARM main control processor is also connected with a combined aural and visual alarm, realizes sound and light of alarm.
Further, the ARM main control processor is also connected with a USB interface, for extending out mass storage.
Compared with prior art, the present invention having the following beneficial effects:
1, high-pressure section (mixed electronic formula Rogowski current transformer) and low-pressure section (master control mould are realized using optical fiber
Block) the transmission being electrically isolated completely to signal, improve on-Line Monitor Device signal transmission anti-interference ability.
2, arrester running current and overvoltage transient current are measured using mixed electronic formula Rogowski current transformer
(lightning impulse current, switching impulse current) improves under the premise of not influencing arrester normal work to lightning stroke or operation
The accuracy of impact-response realizes precisely record lightning arrestor movement number.
3, it can recorded using high speed sampling circuit (running current ADC conversion circuit, transient current ADC conversion circuit)
Lightning stroke, the time of switching impulse, current amplitude, waveform and discharge period can also be accurately recorded while number of lightning strokes,
Will lightning stroke or switching impulse endanger caused by power grid fall below it is minimum, meet arrester monitor on-line requirement.
4, there is wireless communication function, can carry out communicating with monitoring center in real time and realize remote monitoring function, it can be right
Oxide Arrester accurately carries out status assessment, fault diagnosis and lightning stroke, switching impulse situation record and number of lightning strokes and resets.
Detailed description of the invention
Fig. 1 is the structural block diagram of on-Line Monitor Device of the present invention；
Fig. 2 is the functional block diagram of mixed electronic formula Rogowski current transformer of the present invention；
Fig. 3 is the functional block diagram of main control module of the present invention；
Fig. 4 is the functional block diagram of on-Line Monitor Device of the present invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Figure 1, a kind of arrester hybrid current recording on-Line Monitor Device, including mixed electronic formula Rogowski electricity
Current transformer (rogowski current transformer) and main control module.Mixed electronic formula Rogowski current transformer is connected to arrester
On, operation (leakage) electric current, the transient current (lightning impulse current, switching impulse current) of arrester are measured, and will
Measurement data is sent to main control module by optical fiber, and main control module judges the operation conditions of arrester according to measurement data.
Mixed electronic formula Rogowski current transformer uses Rogowski coil as the sensing head on arrester, will
After the output electric signal of Rogowski coil is converted into optical signal, it is sent to the main control module of low-pressure end by optical fiber, utilizes light
What fine digital transmission system realized high-pressure section and low-pressure section is electrically isolated completely to and realizes that signal transmits, and improves and monitors on-line
The anti-interference ability of device signal transmission, mixed electronic formula Rogowski current transformer have the good linearity and measurement essence
Degree, dynamic range is big, fast response time.
Main control module is the core control portions of this on-Line Monitor Device, and the major function completed has: by mixed electronic
Formula Rogowski current transformer is converted into electric signal by the optical signal that optical fiber is sent, and parses the electric signal, and judgement is kept away
Whether running current, the dash current of thunder device normal, judge whether by be struck by lightning, switching impulse and operation of recording number, judgement
Whether arrester is normal；The operating status of arrester is finally determined according to running current, dash current and according to arrester state
Carry out sound-light alarm；Record the numerical value and waveform of arrester running current, dash current；With man-machine interface processing function, and
By wireless communication module by the state teletransmission of arrester Various types of data and arrester to monitoring center, can also receive in monitoring
Remote inquiry function is realized in the instruction of the heart.
As shown in Fig. 2, mixed electronic formula Rogowski current transformer includes running current Rogowski coil, transient current sieve
Family name's coil, outer integrating circuit are converted from integrating circuit, phase-shift circuit, filter circuit, difference ADC driver, running current ADC
Circuit, transient current ADC conversion circuit, arm processor, A/D sequential control circuit, CPLD (Complex Programmable Logic Devices) and
Electro-optical conversion circuit.Running current Rogowski coil, outer integrating circuit, phase-shift circuit, filter circuit, running current ADC conversion electricity
Road and arm processor are sequentially connected；Transient current Rogowski coil turns from integrating circuit, difference ADC driver, transient current ADC
It changes circuit and arm processor is sequentially connected；Arm processor also passes through A/D sequential control circuit, CPLD and running current respectively
ADC conversion circuit, the connection of transient current ADC conversion circuit；Arm processor pass through electro-optical conversion circuit after through optical fiber and master control mould
The photoelectric conversion circuit of block connects.
Mixed electronic formula Rogowski current transformer is there are two types of different working conditions: from integral working condition and micro-
Divide working condition, according to its state characteristic, works and meeting measurement quickly change from the transient current Rogowski coil under integrating state
The requirement of the pulse current, that is, high frequency or steep-sided pulse electric current of change；And the operation Rogowski coil to work under differential state meets measurement
Rise the requirement of slow long duration current signal.The present invention is made using double sensing heads of the Rogowski coil as current signal
They are worked respectively from integral and differential working condition, and satisfaction should measure arrester running current, and to measure arrester again temporary
The double requirements of state electric current (lightning stroke or switching impulse current).When Rogowski coil is when from integral working condition, from integral
Circuit can restore arrester electric current, and output is the voltage signal directly proportional to arrester electric current, the voltage signal
Single-ended signal is changed into differential signal by difference ADC driver, reaches the high fdrequency component in more accurate reflection transient state travelling wave
Effect, which, which enters transient current ADC conversion circuit and realize, accurately samples the high speed of transient current, samples
Rate is controlled by arm processor control CPLD output high-speed pulse signal.When Rogowski coil is in differential working condition,
Output voltage is proportional to the derivative of arrester Current versus time, it is therefore desirable to which outer integrating circuit comes reduction current signal, outer integral
Circuit not only effectively inhibits " integrator drift ", also eliminates influence of the low-frequency disturbance to integrating circuit, goes out from outer integrating circuit
The signal come is not fundamentally to change 90 ° in phase compared with input signal, then to be added behind integral element
One phase-shift circuit makes the signal sampled keep identical in phase with input, enters filter circuit by phase shift signal to mention
High measurement accuracy, filters out the influence of noise, and filter circuit uses butterworth filter, ensure that the signal in filter passband
It is distorted very little, signal, which enters running current adc circuit, after low-pass filtering realizes the essence that leakage current is run to arrester
Really sampling, sampling rate control A/D sequential control circuit output pulse signal by arm processor to control.Mixed electronic formula
Rogowski current transformer uses an arm processor as control device, and groundwork is by two-way ADC hits
Electro-optical conversion circuit (E/O conversion) is sent to by the communication interface in piece according to according to protocol packing, it then will be electric by optical fiber
Flow data sends the main control module of low-pressure side to, which also completes the timing control of two-way ADC sampling, so that two
The initial time of road sampling is synchronous with finish time holding, and different is the sampling speed of the transient current within the same sampling period
Rate will be higher than the sampling rate of running current at double, i.e., sample frequency is constant linear ratio relation in same period.
As shown in figure 3, main control module includes ARM main control processor and coupled DSP coprocessor, photoelectric conversion
It is circuit, power-fail detection circuit, transient current memory, running current memory, FLASH memory, human-computer interaction module, wireless
Communication module, combined aural and visual alarm and USB interface.Thunder-strike current data point are realized in ARM main control processor and the cooperation of DSP coprocessor
Analyse processing function；The electro-optical conversion circuit of photoelectric conversion circuit and mixed electronic formula Rogowski current transformer is connected by optical fiber
It connects, ARM main control processor receives the current data of arrester by photoelectric conversion circuit；ARM main control processor is driven by figure
Dynamic and keyboard interface is connected with human-computer interaction module realizes human-computer interaction function；ARM main control processor passes through TCP/IP and nothing
Line communication module is connected and completes the operational data interactive function of remote control, telemetering, remote signalling with monitoring center；Transient current storage
Device and running current memory are powered by battery, which is connected with power-fail detection circuit realizes power supply handoff functionality；
FLASH memory stores and counts storage for program；Combined aural and visual alarm realizes sound and light of alarm；USB interface is for extending out
Mass storage.
Mixed electronic formula Rogowski current transformer passes through photoelectric conversion circuit by the current data that optical fiber transmission comes
The electric signal that ARM main control processor can identify is converted to, ARM main control processor solves the electric signal according to agreement immediately
Code analysis.Since transient current samples and initial time due to sampling is synchronous with finish time holding simultaneously with running current,
ARM main control processor is easy to analyze transient current data by current data in this way, is then sent into transient current data
DSP coprocessor calculates the frequency spectrum data that transient current can be obtained by the Discrete Fourier Transform of DSP, to analyze transient state
The spectral characteristic of electric current provides data support, and then ARM main control processor is by transient current data and transient current spectrum number
It is stored in running current memory into transient current memory, by running current data according to storage, while ARM main control processor
Simultaneously FLASH memory is written in record lightning stroke, switching impulse number, and transient current memory and running current memory are furnished with power down
The power supply of transient current memory and running current memory is switched to battery when system power loss moment by detection circuit,
It ensure that the non-volatile of data.ARM main control processor analysis running current data judge arrester operating status, work as arrester
It breaks down i.e. running current or transient current transfinites, ARM main control processor is while issuing sound-light alarm also by arrester
Fault message teletransmission is to monitoring center, and by fault message storage to FLASH memory.It is aobvious that ARM main control processor embeds figure
Show driver, can be by arrester current waveform display on high-resolution liquid crystal screen, cooperating projection-type capacitive touch screen is to use
Family provides friendly interpersonal interactive interface, and ARM main control processor has also embedded ICP/IP protocol stack, facilitated networking by network
It is communicated with monitoring center and easily realizes remote monitoring function.In addition, ARM main control processor is also equipped with usb compatible USB2.0
Agreement can external mass-memory unit storage arrester all data information.
Fig. 4 is the functional block diagram of on-Line Monitor Device of the present invention, gives the overall structure and control flow of the device.Three
Phase arrester electric current (running current or transient current) passes through transient current Rogowski coil (induction lightening dash current, operation punching
Hit electric current), induced electromotive force is generated in leading-out terminal, by obtaining and tested current in phase position and proportional electricity from integrating circuit
Signal is pressed, digital signal is then converted to by transient current ADC conversion circuit, is modulated to light letter using electro-optical conversion circuit
Number, electric signal is converted to finally by the photoelectric conversion circuit that optical fiber is transmitted to main control module, recently enters to ARM master control and handles
Device is analyzed and processed.Meanwhile the three-phase lightning protector electric current passes through running current Rogowski coil (induction running current), in outlet
End generate induced electromotive force, by outer integrating circuit obtain to tested current in phase position and proportional current signal, then by
Running current ADC conversion circuit is converted to digital signal, optical signal is modulated to using electro-optical conversion circuit, finally by optical fiber
The photoelectric conversion circuit for being transmitted to main control module is converted to electric signal, recently enters to ARM main control processor and is analyzed and processed.
Key of the invention is can accurately and timely to measure arrester running current and transient current, and passage capacity is good
Sensor and detection circuit quickly and accurately obtain arrester running current, thunder-strike current, switching impulse current data, into
And judge arrester state and storage by the operation of processor, upload data, achieve the purpose that monitor arrester on-line.Its
The mixed electronic formula Rogowski current transformer of use creatively uses double hollow Rogowski coils as electronic sensor
The sensing head of device is realized and is precisely surveyed to operation leakage current so that Measurement bandwidth is increased substantially with response speed
It measures and data is provided for record thunder-strike current waveform to the accurate quick sampling of state current and support.
To sum up, on-Line Monitor Device novel design of the invention is ingenious, and detection current precision is high, response frequency is fast, counts
Zero defect, accurate time, amplitude, waveform and the discharge period for recording transient current and strong antijamming capability, it is completely real
The function of Zinc-Oxide Arrester on-line monitoring is showed.
Simply to illustrate that technical concepts and features of the invention, its purpose is allows in the art above-described embodiment
Those of ordinary skill cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all
It is the equivalent changes or modifications that the essence of content according to the present invention is made, should be covered by the scope of protection of the present invention.
Claims (6)
1. a kind of arrester hybrid current recording on-Line Monitor Device, it is characterised in that: including mixed electronic formula Rogowski electricity
Current transformer and main control module；Mixed electronic formula Rogowski current transformer is connected on arrester, the operation to arrester
Electric current, lightning impulse current and switching impulse current measure, and measurement data is sent to main control module by optical fiber；It is main
Control module judges the operation conditions of arrester according to measurement data.
2. a kind of arrester hybrid current recording on-Line Monitor Device according to claim 1, it is characterised in that: described
Mixed electronic formula Rogowski current transformer include running current Rogowski coil, transient current Rogowski coil, outer integrating circuit,
From integrating circuit, running current ADC conversion circuit, transient current ADC conversion circuit, arm processor, A/D sequential control circuit,
CPLD and electro-optical conversion circuit；Running current Rogowski coil, outer integrating circuit, running current ADC conversion circuit and arm processor
It is sequentially connected；Transient current Rogowski coil is sequentially connected from integrating circuit, transient current ADC conversion circuit and arm processor；
Arm processor is also converted by A/D sequential control circuit, CPLD and running current ADC conversion circuit, transient current ADC respectively
Circuit connection；Electro-optical conversion circuit one end is connect with arm processor, and the other end is connect by optical fiber with main control module.
3. a kind of arrester hybrid current recording on-Line Monitor Device according to claim 2, it is characterised in that: described
Sequentially connected phase-shift circuit and filter circuit are additionally provided between outer integrating circuit and running current ADC conversion circuit, it is described
Difference ADC driver is additionally provided between integrating circuit and transient current ADC conversion circuit.
4. a kind of arrester hybrid current recording on-Line Monitor Device according to claim 1, it is characterised in that: described
Main control module include ARM main control processor and coupled DSP coprocessor, power-fail detection circuit, photoelectric conversion circuit,
Running current memory, transient current memory, FLASH memory, human-computer interaction module, wireless communication module；Photoelectric conversion
Circuit is connect by optical fiber with mixed electronic formula Rogowski current transformer；Wireless communication module and long-range monitoring center connect
It connects；Running current memory and transient current memory are also connect with a battery, which connect with power-fail detection circuit.
5. a kind of arrester hybrid current recording on-Line Monitor Device according to claim 4, it is characterised in that: described
ARM main control processor is also connected with a combined aural and visual alarm.
6. a kind of arrester hybrid current recording on-Line Monitor Device according to claim 4, it is characterised in that: described
ARM main control processor is also connected with a USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142105.5A CN109116097A (en) | 2018-09-28 | 2018-09-28 | A kind of arrester hybrid current recording on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811142105.5A CN109116097A (en) | 2018-09-28 | 2018-09-28 | A kind of arrester hybrid current recording on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109116097A true CN109116097A (en) | 2019-01-01 |
Family
ID=64857247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811142105.5A Pending CN109116097A (en) | 2018-09-28 | 2018-09-28 | A kind of arrester hybrid current recording on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109116097A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596482A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Power transmission line lightning arrester detection system based on inductive power supply and detection method thereof |
| CN112731057A (en) * | 2020-12-21 | 2021-04-30 | 青岛鼎信通讯股份有限公司 | Offline low-voltage cable ground fault positioning device based on pulse coding |
| CN113281605A (en) * | 2021-07-19 | 2021-08-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Impact current calculation method for aging test of lightning arrester for alternating current filter |
| CN113496096A (en) * | 2021-09-07 | 2021-10-12 | 中国南方电网有限责任公司超高压输电公司广州局 | Lightning arrester transient voltage acquisition method and device, computer equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203894349U (en) * | 2014-05-27 | 2014-10-22 | 西安工程大学 | Zinc oxide lightning arrester online monitoring device having lighting stroke wave recording function |
| CN104181428A (en) * | 2014-08-29 | 2014-12-03 | 国网安徽省电力公司淮南供电公司 | Insulation online state monitoring device of zinc oxide arrester |
| CN104614602A (en) * | 2015-01-07 | 2015-05-13 | 国家电网公司 | Online monitoring device for arrester |
| CN106501631A (en) * | 2016-09-08 | 2017-03-15 | 国家电网公司 | High voltage DC breaker lightning arrester connected in parallel leakage current monitoring device and method |
| CN106546859A (en) * | 2016-12-08 | 2017-03-29 | 国家电网公司 | A kind of on-line monitoring system for cable arrester |
-
2018
- 2018-09-28 CN CN201811142105.5A patent/CN109116097A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203894349U (en) * | 2014-05-27 | 2014-10-22 | 西安工程大学 | Zinc oxide lightning arrester online monitoring device having lighting stroke wave recording function |
| CN104181428A (en) * | 2014-08-29 | 2014-12-03 | 国网安徽省电力公司淮南供电公司 | Insulation online state monitoring device of zinc oxide arrester |
| CN104614602A (en) * | 2015-01-07 | 2015-05-13 | 国家电网公司 | Online monitoring device for arrester |
| CN106501631A (en) * | 2016-09-08 | 2017-03-15 | 国家电网公司 | High voltage DC breaker lightning arrester connected in parallel leakage current monitoring device and method |
| CN106546859A (en) * | 2016-12-08 | 2017-03-29 | 国家电网公司 | A kind of on-line monitoring system for cable arrester |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110596482A (en) * | 2019-07-09 | 2019-12-20 | 国网江苏省电力有限公司徐州供电分公司 | Power transmission line lightning arrester detection system based on inductive power supply and detection method thereof |
| CN112731057A (en) * | 2020-12-21 | 2021-04-30 | 青岛鼎信通讯股份有限公司 | Offline low-voltage cable ground fault positioning device based on pulse coding |
| CN113281605A (en) * | 2021-07-19 | 2021-08-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Impact current calculation method for aging test of lightning arrester for alternating current filter |
| CN113281605B (en) * | 2021-07-19 | 2021-10-08 | 中国南方电网有限责任公司超高压输电公司广州局 | Impact current calculation method for aging test of lightning arrester for alternating current filter |
| CN113496096A (en) * | 2021-09-07 | 2021-10-12 | 中国南方电网有限责任公司超高压输电公司广州局 | Lightning arrester transient voltage acquisition method and device, computer equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109116097A (en) | A kind of arrester hybrid current recording on-Line Monitor Device | |
| CN104614602B (en) | A kind of arrester on-Line Monitor Device | |
| CN202041575U (en) | Condition monitoring system for zinc oxide lightning arrester | |
| CN102998511B (en) | A kind of lightning arrester discharge current monitoring device | |
| CN201269901Y (en) | Over-voltage monitoring device for electric grid | |
| CN201522532U (en) | Testing device for residual voltage and electrical current distribution characteristic of whole lightning protector | |
| CN106443307B (en) | Transformer equipment insulated on-line monitoring system | |
| CN103018667B (en) | Characteristic test analysis system for alternating current contactor | |
| CN203759086U (en) | Iron core grounding current online monitoring device | |
| CN203606424U (en) | On-line monitoring device for grounding current of transformer core | |
| CN107797033B (en) | Detection platform for simulating partial discharge test of transformer | |
| CN103558448B (en) | A kind of transmission line of electricity multichannel lightning current monitoring device | |
| CN207780137U (en) | A kind of switchgear Zinc oxide arrester monitoring device | |
| CN106526288A (en) | Transmission line voltage and current monitoring system and method | |
| CN106018998A (en) | Lightning arrester test method and lightning arrester test system | |
| CN211741436U (en) | Zinc oxide arrester running state monitoring devices | |
| CN107449954A (en) | Power transformer iron core earth current holography on-Line Monitor Device and method | |
| CN202794359U (en) | Zinc oxide lightning arrester on-line monitoring device | |
| CN110361606A (en) | Leakage conductor on-line monitoring system | |
| CN101672890A (en) | Testing device of switching-on resistance of portable beaker | |
| CN105371742A (en) | Bushing tap pulse signal injection method-based transformer winding deformation detection device and method | |
| CN204556719U (en) | A kind of intelligent electric power parameter monitor device | |
| CN110045273A (en) | A kind of SF6Contact of breaker ablation degree on-line monitoring method | |
| CN203422419U (en) | Electrified tester for zinc oxide lightning arrester | |
| CN203275530U (en) | Multi-channel integrated thunder and lightning monitor |
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: 20190101 |