CN201945871U - Online monitoring device for resistive current of long-distance power transmission line arrester - Google Patents
Online monitoring device for resistive current of long-distance power transmission line arrester Download PDFInfo
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- CN201945871U CN201945871U CN201020688158XU CN201020688158U CN201945871U CN 201945871 U CN201945871 U CN 201945871U CN 201020688158X U CN201020688158X U CN 201020688158XU CN 201020688158 U CN201020688158 U CN 201020688158U CN 201945871 U CN201945871 U CN 201945871U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The utility model discloses an online monitoring device for resistive current of a long-distance power transmission line arrester, which comprises a site device and an indoor device matched with the site device. The site device comprises a signal acquisition and output module and a signal processing and transmission module connected with the signal acquisition and output module; and the signal acquisition and output module comprises a passive resistive online monitor, a signal input device connected with the passive resistive online monitor, and an optical fiber isolation and signal output device connected with the signal input device; the signal processing and transmission module comprises an analog signal reception and conversion device connected with the optical fiber isolation and signal output device, a phase locking ring connected with the analog signal conversion device, a single-chip microcomputer connected with the phase locking ring, and a GPRS (general packet radio service) signal and high-frequency wireless signal output device connected with the single-chip microcomputer; and the single-chip microcomputer is also connected with high-efficiency solar batteries and a battery management system. By adopting the online monitoring device, the operation of the arrester can be mastered at any time, and various situations of the arrester can be recorded and analyzed and displayed promptly.
Description
Technical field
The utility model relates to a kind of pick-up unit, specifically long-distance transmission line arrester resistance current on-Line Monitor Device.
Background technology
Ultra-high-tension power transmission line is the infrastructure of electric system power delivery, and its safe operation is to economic construction, people life, social stability and electric system itself, and even national security is significant.In the ultra-high-tension power transmission line, the use of Zinc-Oxide Arrester (MOA) is commonplace.Zinc-Oxide Arrester (MOA) has advantages such as discharge capacity is big, residual voltage is low, reaction velocity is fast, the life-span is long, can effectively protect power equipment, is widely used in the overvoltage protection of electric system.Because MOA has good nonlinear resistance property, so Zinc-Oxide Arrester inside is very close to each other.Just because of very close to each other, the effect of bearing Operation of Electric Systems voltage for a long time at normal valve block in service, and the influence of internal wetted or factor such as overheated, thereby can cause the deterioration of valve block nonlinear resistance property.The main performance of this deterioration is the increase of the current in resistance property under the normal voltage, the increasing of current in resistance property causes the increase of thermal value, the lightning arrester internal temperature is risen, the aging of valve block quickened in the rising of temperature again, form pernicious follow bad, cause MOA to damage at last, may cause the blast of lightning arrester when serious, cause large area blackout owing to overheated.
In order to guarantee the normal use of lightning arrester, adopt three kinds of relevant technology at present, be respectively: lightning arrester thunderbolt on-Line Monitor Device; The visual monitoring device of lightning arrester; By on PT (voltage transformer (VT)), getting auxiliary signal, calculate the result by mathematical method.The shortcoming of these three kinds of technology is respectively: lightning arrester thunderbolt on-Line Monitor Device can't monitor the leakage current of lightning arrester, can not understand lightning arrester internal work situation by leakage current; The visual monitoring device of lightning arrester can only be seen the outside filthy and icing lightning arrester operate outside situation that waits of lightning arrester by video; Get auxiliary signal, during mathematical method was calculated, data were that mathematical method calculates, and indirectly measurement obtains, poor accuracy, and this method is difficult to implement on the line.
Summary of the invention
Problem and shortage at above-mentioned prior art existence, the purpose of this utility model provides a kind of long-distance transmission line arrester resistance current on-Line Monitor Device, this device can be grasped the lightning arrester working condition at any time, at any time grasp the duty of leakage conductor, in case current in resistance property changes above critical value and starts warning at once, point out maintenance or more exchange device as early as possible.
The purpose of this utility model is achieved through the following technical solutions:
A kind of long-distance transmission line arrester resistance current on-Line Monitor Device comprises field device and the indoor set suitable with it, and field device comprises that signals collecting and output module reach signal Processing and the transport module that joins with it; Signals collecting and output module comprise passive resistive on-line monitoring instrument, the signal input apparatus that joins with passive resistive on-line monitoring instrument, isolate and signal output apparatus with the optical fiber that signal input apparatus joins, the analog signal conversion device that signal Processing and transport module comprise with optical fiber is isolated and signal output apparatus joins, the phaselocked loop that joins with the analog signal conversion device, the single-chip microcomputer that joins with phaselocked loop, the GPRS signal and the high-frequency wireless signals output unit that join with single-chip microcomputer, wherein be provided with the A/D conversion equipment in the single-chip microcomputer, A/D conversion equipment and analog signal conversion device join, and also are connected to high performance solar batteries and battery management system on the single-chip microcomputer.Described indoor set comprises that signal receives and data processing module reaches data analysis, statistics, storage and the control operation module of joining with it; Signal receives and data processing module comprises with the suitable wireless signal of GPRS signal and high-frequency wireless signals output unit and receives multiplying arrangement, receives the ARM chip that multiplying arrangement joins with wireless signal, and data analysis, statistics, storage and control operation module comprise respectively LCM display device, internet, FLASH, RS232 communication port, RS485 communication port and the keyboard that joins with the ARM chip.
In the utility model, be provided with the SRAM high-speed cache in the described ARM chip.
The utlity model has following beneficial effect:
1, the utility model really solved present domestic to high pressure, UHV (ultra-high voltage) and extra-high voltage long-distance transmission line lightning arrester serviceability can't be directly, problems of monitoring in real time.Can in time grasp the interior lightning arrester working condition in lightning-arrest arbitrarily station of whole piece transmission line of electricity.
But 2 data monitored are many, comprise that lightning arrester thunderbolt number of times, lightning arrester leak total current, lightning arrester leaks current in resistance property, lightning arrester leakage capacity current.Real-time monitors the lightning arrester duty, and with the data in real time of being tested pass the electric system master-control room back, grasp the duty of leakage conductor at any time.
3, the analytic statistics complete function of system, leakage current (comprising lightning arrester three-phase total current, current in resistance property, capacity current) data monitoring and change curve (week curve, month curve, annual curve) can be seen whole year electric current variation tendency and any pairing time of big or small electric current by curve.Curve map of thunderbolt Monitoring Data of number of times and variation (week curve, month curve, annual curve) and pie chart, can see the lightning-arrest situation of degree lightning arrester in the whole year by curve, any thunderbolt time constantly can be seen, and the distribution situation of annual transmission line lightning stroke can be clearly analyzed by pie chart.
4, can generate form prints at any time; Data are preserved power down and were not lost in 10 years.
5, have the overload alarm function, start warning at once, point out maintenance or more exchange device as early as possible in case current in resistance property changes above critical value.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model.
As shown in Figure 1, a kind of long-distance transmission line arrester resistance current on-Line Monitor Device, comprise field device 1 and the indoor set 2 suitable with it, field device 1 comprises that the signals collecting and the output module 3 that join with the high voltage lightning arrester reach signal Processing and the transport module 4 that joins with it, and indoor set 2 comprises that signal receives and data processing module 5 reaches data analysis, statistics, storage and the control operation module 6 of joining with it.Signals collecting and output module 3 comprise passive resistive on-line monitoring instrument 31, are connected to signal input apparatus 32 on passive resistive on-line monitoring instrument 31, be connected to optical fiber and isolate and signal output apparatus 33 on signal input apparatus 32.The analog signal conversion device 41 that signal Processing and transport module 4 comprise with optical fiber is isolated and signal output apparatus 33 joins, on analog signal conversion device 41, be connected to phaselocked loop 42, on phaselocked loop 42, be connected to single-chip microcomputer 43, in single-chip microcomputer 43, be provided with A/D conversion equipment 45, A/D conversion equipment 45 joins with analog signal conversion device 41, is connected to GPRS signal and high-frequency wireless signals output unit 44 and high performance solar batteries and battery management system 46 on single-chip microcomputer 43 respectively.Signal receives and data processing module 5 comprises with the suitable wireless signal of GPRS signal and high-frequency wireless signals output unit 44 and receives multiplying arrangement 51, on wireless signal reception multiplying arrangement 51, be connected to ARM chip 52, in ARM chip 52, be provided with SRAM high-speed cache 53, on ARM chip 52, be connected to LCM display device 61 respectively, internet 62, FLASH 63, RS232 communication port 64, RS485 communication port 65 and keyboard 66, LCM display device 61, internet 62, FLASH 63, RS232 communication port 64, RS485 communication port 65 and keyboard 66 have been formed data analysis jointly, statistics, storage and control operation module 6.
At the scene passive resistive on-line monitoring instrument 31 is connected on the bottom line of lightning arrester 7 during work, receive the electric signal on the lightning arrester 7, electric signal enters optical fiber by signal input apparatus 32 isolates and signal output apparatus 33, optical fiber isolation and 33 pairs of electric signal of signal output apparatus carry out the electric light conversion makes it be converted into light signal, light signal is exported and is entered analog signal conversion device 41, analog signal conversion device 41 carries out the photoelectricity dress with it and changes, light signal is converted into analog electrical signal, analog electrical signal becomes digital electric signal by phaselocked loop 42 and A/D conversion equipment 45, digital electric signal enters GPRS signal and high-frequency wireless signals output unit 44 again, becomes wireless signal output afterwards; Receive multiplying arrangement 51 by indoor wireless signal after the wireless signal output and receive, import into after the reception in the ARM chip 52, ARM chip 52 amplifies wireless signal filtering, revise, and the signal after will handling at last carries out a series of output.
Monitor of the present utility model is an inactive component, directly seals on the ground wire of lightning arrester and can monitor data, need not other any subtest equipment; Data acquisition and transmission equipment all adopt the above low-power consumption components and parts of technical grade, and on-the-spot power supply is the high performance solar cells plate, and the life-span can reach more than 25 years, used domestic state-of-the-art high capacity cell, but guarantee no sunlight operate as normal in January; Data transmission adopt wireless GPRS mode or high frequency small wireless MANET mode with data transmission to system host; Main frame with after the data analysis statistics with RS232, USB, CAN422 bus and TCP the IP network mode communication interface is provided; Communications protocol is abideed by the latest requirement IEC61850 of State Grid Corporation of China agreement, can satisfy the communication need of different levels electric power mechanism.
Claims (2)
1. long-distance transmission line arrester resistance current on-Line Monitor Device, comprise field device (1) and the indoor set (2) suitable with it, it is characterized in that: field device (1) comprises that signals collecting and output module (3) reach signal Processing and the transport module (4) that joins with it; The signal input apparatus (32) that signals collecting and output module (3) comprise the passive resistive on-line monitoring instrument (31) that is connected with lightning arrester, join with passive resistive on-line monitoring instrument (31), the optical fiber that joins with signal input apparatus (32) are isolated and signal output apparatus (33); The analog signal conversion device (41) that signal Processing and transport module (4) comprise with optical fiber is isolated and signal output apparatus (33) joins, the phaselocked loop (42) that joins with analog signal conversion device (41), the single-chip microcomputer (43) that joins with phaselocked loop (42), the GPRS signal and the high-frequency wireless signals output unit (44) that join with single-chip microcomputer (43), wherein be provided with A/D conversion equipment (45) in the single-chip microcomputer (43), A/D conversion equipment (45) joins with analog signal conversion device (41), also is connected to high performance solar batteries and battery management system (46) on the single-chip microcomputer (43); Described indoor set (2) comprises that signal receives and data processing module (5) reaches data analysis, statistics, storage and the control operation module (6) of joining with it; Signal receives and data processing module (5) comprises with the suitable wireless signal of GPRS signal and high-frequency wireless signals output unit (44) and receives multiplying arrangement (51), receives the ARM chip (52) that multiplying arrangement (51) joins with wireless signal, and data analysis, statistics, storage and control operation module (6) comprise respectively LCM display device (61), internet (62), FLASH (63), RS232 communication port (64), RS485 communication port (65) and the keyboard (66) that joins with ARM chip (52).
2. according to the described long-distance transmission line arrester resistance current of claim 1 on-Line Monitor Device, it is characterized in that: in ARM chip (52), be provided with SRAM high-speed cache (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020688158XU CN201945871U (en) | 2010-12-30 | 2010-12-30 | Online monitoring device for resistive current of long-distance power transmission line arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020688158XU CN201945871U (en) | 2010-12-30 | 2010-12-30 | Online monitoring device for resistive current of long-distance power transmission line arrester |
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| CN201945871U true CN201945871U (en) | 2011-08-24 |
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| CN201020688158XU Expired - Lifetime CN201945871U (en) | 2010-12-30 | 2010-12-30 | Online monitoring device for resistive current of long-distance power transmission line arrester |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169135A (en) * | 2010-12-30 | 2011-08-31 | 南京世都科技有限公司 | Resistive current remote online monitoring system for power transmission line arrester |
| CN103048556A (en) * | 2011-10-14 | 2013-04-17 | 四川蓝讯宝迩电子科技有限公司 | On-line monitoring device of lightning arrester of touch screen type switch cabinet with memory |
| CN104330650A (en) * | 2014-09-22 | 2015-02-04 | 广东电网公司东莞供电局 | Total current based live-line test method of zinc oxide lightning arrester group |
| CN104459297A (en) * | 2013-11-27 | 2015-03-25 | 南京世都科技有限公司 | System utilizing double-frequency transmission and based on FFT positive and negative conversion relative calibration resistive current measurement |
| CN104459296A (en) * | 2013-11-27 | 2015-03-25 | 南京世都科技有限公司 | Resistive current measuring method and device based on forward and inverse FFT relative calibration |
| CN108333455A (en) * | 2018-04-08 | 2018-07-27 | 广东电网有限责任公司 | A kind of measuring device with electricity for three-phase alternating current metal oxide arrester group |
| CN112788643A (en) * | 2020-12-31 | 2021-05-11 | 南京瑞泓晟电力科技有限公司 | Wireless signal quality testing method |
-
2010
- 2010-12-30 CN CN201020688158XU patent/CN201945871U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169135A (en) * | 2010-12-30 | 2011-08-31 | 南京世都科技有限公司 | Resistive current remote online monitoring system for power transmission line arrester |
| CN103048556A (en) * | 2011-10-14 | 2013-04-17 | 四川蓝讯宝迩电子科技有限公司 | On-line monitoring device of lightning arrester of touch screen type switch cabinet with memory |
| CN104459297A (en) * | 2013-11-27 | 2015-03-25 | 南京世都科技有限公司 | System utilizing double-frequency transmission and based on FFT positive and negative conversion relative calibration resistive current measurement |
| CN104459296A (en) * | 2013-11-27 | 2015-03-25 | 南京世都科技有限公司 | Resistive current measuring method and device based on forward and inverse FFT relative calibration |
| CN104459296B (en) * | 2013-11-27 | 2017-10-13 | 南京世都科技有限公司 | A kind of method and device based on the relatively quasi- current in resistance property measurement of the positive inverse transformations of Fourier FFT |
| CN104459297B (en) * | 2013-11-27 | 2017-10-13 | 南京世都科技有限公司 | A kind of utilization double frequency transmission and the system measured based on the positive inverse transformation calibration current in resistance property of Fourier FFT |
| CN104330650A (en) * | 2014-09-22 | 2015-02-04 | 广东电网公司东莞供电局 | Total current based live-line test method of zinc oxide lightning arrester group |
| CN104330650B (en) * | 2014-09-22 | 2017-10-20 | 广东电网公司东莞供电局 | One kind is based on circuital Zinc-Oxide Arrester group charged test method |
| CN108333455A (en) * | 2018-04-08 | 2018-07-27 | 广东电网有限责任公司 | A kind of measuring device with electricity for three-phase alternating current metal oxide arrester group |
| CN112788643A (en) * | 2020-12-31 | 2021-05-11 | 南京瑞泓晟电力科技有限公司 | Wireless signal quality testing method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |