CN202126472U - Leakage current online monitoring device for zinc oxide arrester based on wireless synchronous techniques - Google Patents
Leakage current online monitoring device for zinc oxide arrester based on wireless synchronous techniques Download PDFInfo
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- CN202126472U CN202126472U CN2011201819017U CN201120181901U CN202126472U CN 202126472 U CN202126472 U CN 202126472U CN 2011201819017 U CN2011201819017 U CN 2011201819017U CN 201120181901 U CN201120181901 U CN 201120181901U CN 202126472 U CN202126472 U CN 202126472U
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- leakage current
- zinc oxide
- oxide arrester
- wireless
- current
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- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 33
- 230000001360 synchronised effect Effects 0.000 title abstract description 19
- 238000000034 method Methods 0.000 title abstract description 7
- 238000012806 monitoring device Methods 0.000 title abstract 3
- 229960001296 zinc oxide Drugs 0.000 claims description 27
- 238000005516 engineering process Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 abstract description 22
- 238000004458 analytical method Methods 0.000 abstract description 4
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000032683 aging Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Provided is a leakage current online monitoring device for a zinc oxide arrester based on wireless synchronous techniques. A CC2430 and a local procedure calls (LPC) 2378 form a central node of a wireless star network. The central node can finish sending synchronous sampling signals, receive voltage and current data acquired by child nodes, analyze the data and upload the data to a remote monitoring center. The CC2430 is mainly used for sending the wireless synchronous sampling signals and receiving sampling data of the child nodes. Network chilled nodes with CC2430s serving as cores can receive the synchronous sampling signals sent by the central node, finish sampling leakage current of the zinc oxide arrester and reference voltage of a potential transformer (PT), and upload the sampling data according to addresses. The leakage current online monitoring device for the zinc oxide arrester based on the wireless synchronous techniques utilizes a wireless synchronous methods, acquires total leakage current from the zinc oxide arrester and voltage reference signals from the PT side, and obtains fundamental wave value and phase value of the current and fundamental wave value and phase value of the voltage by means of fast fourier transform (FFT) analysis. Accordingly, resistive current in the leakage current can be obtained, and the deterioration degree of the zinc oxide arrester can be judged.
Description
Technical field
The utility model relates to a kind of leakage current of an arrester on-Line Monitor Device, relates in particular to a kind of Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device based on the wireless synchronization technology.
Background technology
In high-voltage fence, Zinc-Oxide Arrester is a kind of protection equipment that the protection electric equipment is avoided the superpotential infringement.But because zinc oxide valve plate makes moist, itself is aging, and the filthy influence of environment moves under the exception condition etc., all can reduce the safe and reliable operation of Zinc-Oxide Arrester, even explosion caused accident, causes large-area power-cuts, the ability that forfeiture protection electric equipment is not damaged.Therefore, on-line monitoring Zinc-Oxide Arrester situation can effectively avoid fault to take place, and helps the safe operation of power equipment.
At present, people take regularly Zinc-Oxide Arrester to be had a power failure to detect usually, perhaps seal in leakage current indication and calculating instrument in the Zinc-Oxide Arrester ground loop at manual patrol, and the record current reading is judged the lightning arrester operation conditions, degree of aging.Intensification along with the Zinc-Oxide Arrester degree of aging; Current in resistance property in the leakage current obviously increases; And the content of current in resistance property in total current only accounts for about 10%-20%, and is a lot of even the current in resistance property in the leakage current increases, and can not in the leakage current monitor, significantly show.
The utility model content
The utility model purpose is the above-mentioned shortcoming that overcomes prior art; A kind of Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device based on the wireless synchronization technology is provided; It has avoided conventional artificial inspection, on-the-spot cable laying, has realized synchronized sampling, the utilization fft analysis; Draw resistive fundamental current, significantly embodied the variation of current in resistance property.
In order to solve above technical matters, the Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device based on the wireless synchronization technology that the utility model provides is characterized in that comprising:
Distant place data center---write down each monitored Leakage Current of Zinc-oxide Lightning Arresters data, comprise total current, current in resistance property, and zinc paste ageing state;
Centroid---constitute by LPC2378 chip and CC2430 chip, its on the one hand and the communication of distant place data center, another side to Leakage Current measure child node, PT voltage measurement child node is sent the synchronized data sampling signal, and receives the sampled data that it returns;
The leakage current measurement child node---be Leakage Current of Zinc-oxide Lightning Arresters on-line monitoring unit, the synchronous sampling signal according to Centroid sends carries out synchronized sampling to the lightning arrester Leakage Current, and is sent to Centroid through wireless network;
PT voltage measurement child node---the synchronous sampling signal according to Centroid sends carries out synchronized sampling to PT side voltage, and is sent to Centroid through wireless network.
The utility model design proposal; The Centroid of forming wireless Star Network with TI wireless singlechip CC2430 and the ARM of NXP company chip LPC2378; Centroid is accomplished the transmission of synchronous sampling signal, receives the voltage that collects from child node, current data; The line data analysis of going forward side by side, and with data upload to remote monitoring center.At this, the CC2430 chip mainly serves as the transmission of wireless synchronization sampled signal and receives the effect of child node sampled data.With the CC2430 chip is the network child node of core, is receiving the synchronous sampling signal that Centroid sends, and accomplishes Leakage Current of Zinc-oxide Lightning Arresters, and the PT reference voltage is sampled, and uploads sampled data by the address.The present invention utilizes the wireless synchronization method; Obtain leakage full current from Zinc-Oxide Arrester, get voltage reference signal from the PT side-draw, through fft analysis; Draw the first-harmonic value and the phase value of electric current; Voltage fundamental value and phase value, thus draw the current in resistance property size in the leakage current, can judge the degradation of Zinc-Oxide Arrester thus.
The utility model possesses following advantage based on the Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device of wireless synchronization technology:
1. the utilization of wireless synchronization method can extract current in resistance property accurately from leakage current;
2. employing solar electric power supply system, wireless data transmission has been avoided cable laying;
3. the teletransmission of data, dynamic prison shows the state of Zinc-Oxide Arrester, has improved the real-time of monitoring;
4. easy for installation, expense is low.
The utility model ingenious conception, topological structure is reasonable, and is easy to use, effective.Be well received in the field of business, have good market outlook.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is this Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device block diagram based on the wireless synchronization technology.
Embodiment
As shown in Figure 1, the Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device based on the wireless synchronization technology of present embodiment comprises:
Distant place data center---write down each monitored Leakage Current of Zinc-oxide Lightning Arresters data, comprise total current, current in resistance property, and zinc paste ageing state;
Centroid---constitute by LPC2378 chip and CC2430 chip, its on the one hand and the communication of distant place data center, another side to Leakage Current measure child node, PT voltage measurement child node is sent the synchronized data sampling signal, and receives the sampled data that it returns;
Leakage Current is measured 3 of child nodes---be Leakage Current of Zinc-oxide Lightning Arresters on-line monitoring unit; After receiving the sample command that Centroid sends, immediately the lightning arrester Leakage Current is carried out synchronized sampling, sampling; 32 points of a cycle equal interval sampling and storage; That waits for network center's node transmission uploads data command by the address, and each child node is passed through CC2591 power amplification chip with data successively, is sent to network center's node.
PT voltage measurement child node---the synchronous sampling signal according to Centroid sends carries out synchronized sampling to PT side voltage, and is sent to Centroid through wireless network.
The related wireless network of the utility model is the ZigBee wireless network, and CC2430 chip, CC2591 power amplification chip all are the chips of design ZigB wireless network.
Present embodiment adopts the wireless synchronization sampling based on the Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device of wireless synchronization technology, and network is formed from node by 1 main 3, adopts point-to-point communication; Obtain voltage at synchronization, current data, voltage signal is obtained by PT, and leakage full current is through 100R resistance; Convert voltage signal into, voltage, electric current all pass through identical step low-pass does not have source resistance-capacitance filter, and cutoff frequency is 313Hz; The input of employing difference, cycle equal interval sampling 32 points are to PT voltage; The leakage full current data are carried out fft analysis, draw both phase angle differences and exist, the resistive fundamental current amplitude.(explaining that the value in the table all is the value after quantizing)
The utility model device utilizes solar poweredly, through wireless data transmission technology, need not to lay electric power, telecommunication cable, and is easy for installation, even the wireless sensing node fault does not influence system safety operation yet.The utility model device is mainly used in the monitoring of Zinc-Oxide Arrester in the transformer station.
Except that the foregoing description, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (2)
1. based on the Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device of wireless synchronization technology, it is characterized in that comprising:
Distant place data center, Centroid, leakage current measurement child node, PT voltage measurement child node; Said Centroid is made up of LPC2378 chip and CC2430 chip; Said Centroid and the communication of distant place data center; The sampled data of leakage current measurement child node, PT voltage measurement child node is sent to Centroid through wireless network, and said leakage current measurement child node is Leakage Current of Zinc-oxide Lightning Arresters on-line monitoring unit.
2. the Leakage Current of Zinc-oxide Lightning Arresters on-Line Monitor Device based on the wireless synchronization technology according to claim 1, it is characterized in that: described wireless network is the ZigBee wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201819017U CN202126472U (en) | 2011-05-31 | 2011-05-31 | Leakage current online monitoring device for zinc oxide arrester based on wireless synchronous techniques |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201819017U CN202126472U (en) | 2011-05-31 | 2011-05-31 | Leakage current online monitoring device for zinc oxide arrester based on wireless synchronous techniques |
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| CN202126472U true CN202126472U (en) | 2012-01-25 |
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| CN2011201819017U Expired - Fee Related CN202126472U (en) | 2011-05-31 | 2011-05-31 | Leakage current online monitoring device for zinc oxide arrester based on wireless synchronous techniques |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777053A (en) * | 2012-10-24 | 2014-05-07 | 江苏省电力公司连云港供电公司 | Method for realizing synchronous sampling of voltage and current by utilizing wireless communication mode |
| CN105044524A (en) * | 2015-08-10 | 2015-11-11 | 许继集团有限公司 | Lightning arrester monitoring method applicable to intelligent transformer station and system |
| CN105137269A (en) * | 2015-09-24 | 2015-12-09 | 国家电网公司 | Distribution type wireless synchronous zinc oxide arrester electrification detection device and method |
| CN105136201A (en) * | 2015-08-26 | 2015-12-09 | 芜湖市凯鑫避雷器有限责任公司 | Falling type lightning arrester detection system |
| CN105182044A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester state detection device with Hall sensor acting as framework |
| CN105182163A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester leakage current online detection system based on cloud technology |
| CN105182045A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Big data platform with ultrahigh voltage DC arrester state detection data acting as framework |
| CN105182043A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester leakage current detection device through noncontact sensor |
| CN105548821A (en) * | 2015-11-16 | 2016-05-04 | 国家电网公司 | Lightning arrester live detection method |
| CN106324321A (en) * | 2016-08-23 | 2017-01-11 | 苏州亿科斯通电气有限公司 | Monitoring method and monitoring device for resistive current of zinc oxide lightning arrester |
| CN107505531A (en) * | 2017-08-10 | 2017-12-22 | 中国科学院上海高等研究院 | A kind of earth detector, insulator earth detector, system and method |
| CN113820536A (en) * | 2021-09-29 | 2021-12-21 | 国网河南省电力公司检修公司 | Zinc oxide arrester live-line detection method based on wireless synchronous current measurement technology |
| CN116699462A (en) * | 2023-07-20 | 2023-09-05 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent monitoring and collecting device for passive zinc oxide lightning arrester |
-
2011
- 2011-05-31 CN CN2011201819017U patent/CN202126472U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777053A (en) * | 2012-10-24 | 2014-05-07 | 江苏省电力公司连云港供电公司 | Method for realizing synchronous sampling of voltage and current by utilizing wireless communication mode |
| CN105044524A (en) * | 2015-08-10 | 2015-11-11 | 许继集团有限公司 | Lightning arrester monitoring method applicable to intelligent transformer station and system |
| CN105136201A (en) * | 2015-08-26 | 2015-12-09 | 芜湖市凯鑫避雷器有限责任公司 | Falling type lightning arrester detection system |
| CN105182043B (en) * | 2015-09-23 | 2018-05-11 | 红相股份有限公司 | Detection device with non-contact sensor to UHVDC Arrester leakage current |
| CN105182044A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester state detection device with Hall sensor acting as framework |
| CN105182163A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester leakage current online detection system based on cloud technology |
| CN105182045A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Big data platform with ultrahigh voltage DC arrester state detection data acting as framework |
| CN105182043A (en) * | 2015-09-23 | 2015-12-23 | 厦门红相电力设备股份有限公司 | Ultrahigh voltage DC arrester leakage current detection device through noncontact sensor |
| CN105182045B (en) * | 2015-09-23 | 2018-05-11 | 红相股份有限公司 | Big data platform using UHVDC Arrester state-detection data as framework |
| CN105137269A (en) * | 2015-09-24 | 2015-12-09 | 国家电网公司 | Distribution type wireless synchronous zinc oxide arrester electrification detection device and method |
| CN105548821A (en) * | 2015-11-16 | 2016-05-04 | 国家电网公司 | Lightning arrester live detection method |
| CN106324321A (en) * | 2016-08-23 | 2017-01-11 | 苏州亿科斯通电气有限公司 | Monitoring method and monitoring device for resistive current of zinc oxide lightning arrester |
| CN107505531A (en) * | 2017-08-10 | 2017-12-22 | 中国科学院上海高等研究院 | A kind of earth detector, insulator earth detector, system and method |
| CN113820536A (en) * | 2021-09-29 | 2021-12-21 | 国网河南省电力公司检修公司 | Zinc oxide arrester live-line detection method based on wireless synchronous current measurement technology |
| CN116699462A (en) * | 2023-07-20 | 2023-09-05 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent monitoring and collecting device for passive zinc oxide lightning arrester |
| CN116699462B (en) * | 2023-07-20 | 2023-11-07 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent monitoring and collecting device for passive zinc oxide lightning arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY STATE GRID CORPORAT Free format text: FORMER OWNER: NANJING DAONA NENG TECHNOLOGY CO., LTD. Effective date: 20121113 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121113 Address after: 222004 Lianyungang City, Jiangsu province Sinpo District Road No. 13 Patentee after: Lianyungang Power Supply Company of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Patentee after: Nanjing Daonaneng Technology Co.,Ltd. Address before: 222004 Lianyungang City, Jiangsu province Sinpo District Road No. 13 Patentee before: Lianyungang Power Supply Company of Jiangsu Electric Power Company Patentee before: Nanjing Daonaneng Technology Co.,Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20120531 |