CN205450180U - Real -time on -line monitoring alarm system of partial discharge - Google Patents
Real -time on -line monitoring alarm system of partial discharge Download PDFInfo
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- CN205450180U CN205450180U CN201521005449.3U CN201521005449U CN205450180U CN 205450180 U CN205450180 U CN 205450180U CN 201521005449 U CN201521005449 U CN 201521005449U CN 205450180 U CN205450180 U CN 205450180U
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Abstract
The utility model discloses a real -time on -line monitoring alarm system of partial discharge belongs to the power systems technology field, and real -time on -line monitoring alarm system of partial discharge is level formula network structure, including field device layer, transformer substation layer and remote control center, be equipped with the monitor cell that ultraviolet light sensor unit and hyperfrequency sensor unit combine among the signal processing module on field device layer for detect the inside partial discharge condition of power equipment, the transformer substation layer is connected the field device layer and is used for receiving the information on field device layer and shows monitoring results and transfer message, and remote control connects at the center transformer substation layer and is used for long -range receipt field data information. The utility model provides a power equipment discharge detection installation cost high, problem that can not remote real -time detection has that the real -time detection data are accurate, the interference killing feature is strong, the advantage of long -range transmitter data, real -time supervision electric power facility's trouble hidden danger, accident incubation period promptly to staff's early warning.
Description
Technical field
This utility model belongs to technical field of power systems, relates to the discharge fault monitoring direction of power equipment, is specifically related to a kind of shelf depreciation real time on-line monitoring warning system.
Background technology
Along with the raising of power transmission and transformation electric pressure, the voltage of power equipment is more and more higher, requires more and more higher to the insulating properties of power equipment.In such devices, the defect existed due to electrode and insulating surface, the damage of wire external insulation or the reason such as aging are likely to result in power equipment shelf depreciation, if this type of fault can not get processing in time, likely can cause finally puncturing and losing efficacy of insulation, even cause the damage of power equipment.According to National Power System switch cubicle accident statistics between 1989--1992, the fault that insulation and current-carrying cause accounts for the 40.2% of sum, and the accident wherein caused due to the flashover of insulated part accounts for the 79% of insulation fault sum.For preventing the generation of this kind of accident, in the case of not affecting normal power transmission and transformation, the on-line checking of power equipment shelf depreciation just seems the most necessary.
Mostly originate from the shelf depreciation flashover of equipment in view of high voltage fault, therefore the method for power industry detection shelf depreciation is a lot.The most popular has ultraviolet image method, infrared thermal imagery method, supercritical ultrasonics technology and hyperfrequency method etc..These detection methods have respective advantage at different aspects, the most also a certain degree of application it is obtained for, but the most all there is respective problem: (1) uses ultraviolet image method to measure shelf depreciation: during the shelf depreciation of distribution net equipment surface simultaneously, electric discharge position will radiate ultraviolet in a large number, the most just highly sensitive ultraviolet radiation accepter ultraviolet imager can be used, carry out indirect assessment run the insulation status of equipment and find the defect of insulation system in time, prevented and safeguard.But ultraviolet light imaging instrument the most on the market is expensive, and is as detecting instrument off-line operation, therefore, it is difficult to carry out popularization and application in various lots of distribution network systems.(2) infrared thermal imagery method: the local temperature caused based on shelf depreciation raises, and is realized by thermal infrared imager.Thermal infrared imager passes through infrared thermal imaging technique, and infrared radiation images is converted to visual image.But thermal infrared imager thermometric is affected by surface emissivity, and thermal infrared imager can not realize on-line real time monitoring, when the most not producing obvious hot-spot for shelf depreciation, the method is undesirable, such as corona discharge, it is seen that during infrared image, electrical equipment electric discharge is the most serious.
(3) hyperfrequency method: hyperfrequency (the 300～3000MHz) signal of telecommunication putting generation by detection device interior office, realizes detection and the location of shelf depreciation, and its sensor actually receives the antenna of ultra-high frequency signal.The advantage of ultra-high-frequency detection method be can the shelf depreciation of detecting devices built-in electrical insulation, and signal is difficult to block in transmittance process.But shortcoming is ultra-high frequency signal is easily subject to other High-frequency Interference, such as neighbouring shelf depreciation, wireless broadcasting and TV communication, remote measuring and controlling signal etc., electromagnetic wave propagation also can be brought adverse effect by the high additionally high-voltage switch cabinet body tank wall of rate of false alarm, and the difficulty of uhf electromagnetic wave detection is put in the office of adding.
Summary of the invention
According to above the deficiencies in the prior art, technical problem to be solved in the utility model is to propose a kind of shelf depreciation real time on-line monitoring warning system, in conjunction with Ultraviolet sensor unit and uhf sensor unit, use ultraviolet Radiation monitoring shelf depreciation situation and super high frequency technique monitoring internal discharge situation, solve device for detecting power equipment discharge cost high, the problem that can not detect the most in real time, there is real-time detector data accurate, capacity of resisting disturbance is strong, the advantage remotely sending information, monitor the potential faults of electric power facility in real time, in accident incubation period i.e. to staff's early warning, maintenance equipment and the purpose improving running environment in time, in order to avoid causing more serious consequence such as burning apparatus etc., reduce economic loss, ensure safety power supply.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of shelf depreciation real time on-line monitoring warning system, described shelf depreciation real time on-line monitoring warning system is hierarchical network structure, including scene equipment level, substation level and remote control center, the signal processing module of scene equipment level is provided with Ultraviolet sensor unit and the monitoring means of uhf sensor unit combination, for detecting the internal shelf depreciation situation of power equipment, utilize ultraviolet Radiation monitoring shelf depreciation situation and super high frequency technique monitoring internal discharge situation, substation level field equipment connecting layer is used for receiving the information of scene equipment level and showing monitoring result and transmission information, remote control center connects substation level and is used for remotely receiving field data information.
In said system, described signal processing module also includes microprocessor, alarm unit and communication module, Ultraviolet sensor unit connects and is used on the microprocessor receiving the ultraviolet light pulse in shelf depreciation radiation the signal that receives of transmission to microprocessor, uhf sensor unit connects microprocessor and is used for receiving the ultra-high frequency signal in shelf depreciation radiation the signal that receives of transmission to microprocessor, microprocessor judges the generation of shelf depreciation according to the signal that Ultraviolet sensor unit and uhf sensor unit send, alarm unit connects microprocessor and is used for sending early warning and alarm signal according to the instruction of microprocessor, the input of communication module connects the outfan of microprocessor, the outfan of communication module connects substation level.Described signal processing module also includes liquid crystal display, and liquid crystal display is connected to the outfan of microprocessor for showing the result of calculation of microprocessor.Described Ultraviolet sensor unit includes Ultraviolet sensor, preposition reverse scaling circuit, filter circuit and AD sample circuit, Ultraviolet sensor includes day-old chick ultraviolet light sensing tube and UV driven circuit, the ultraviolet radiation that day-old chick ultraviolet light sensing tube detection shelf depreciation produces, UV driven circuit connects the outfan of day-old chick ultraviolet light sensing tube and is used for ultraviolet signal is converted to current pulse signal, preposition reverse scaling circuit, filter circuit and AD sample circuit are sequentially connected electrically, the input of preposition reverse scaling circuit connects UV driven circuit and receives current pulse signal, the outfan of AD sample circuit connects the microprocessor arranged in signal processing module.Described filter circuit is provided with second order Butterworth high-pass filtering for filtering low-frequency disturbance.Described uhf sensor unit includes antenna, high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card, antenna receives the ultra-high frequency signal of shelf depreciation and transfers out, high integration amplifier connects antenna and is used for amplifying the transmission signal of antenna, high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card are sequentially connected electrically for processing the ultra-high frequency signal that antenna receives, and the outfan of A/D capture card connects the microprocessor arranged in signal processing module.Described substation level includes multiple display and signal intermediate transit point, the outfan of the input field equipment connecting layer of display is used for the real time information of displaying scene mechanical floor, the outfan of the input field equipment connecting layer of signal intermediate transit point, the outfan of signal intermediate transit point connects remote control center.RS485 communication interface it is provided with, by RS485 communication interface and ICP/IP protocol transmission signal between scene equipment level and substation level, between substation level and remote control center in described scene equipment level and substation level.Described remote control center includes server, client, printer and network, and server receives the signal of substation level by network, and client Connection Service device is used for the information of displaying scene mechanical floor, and printer connects on the client.Described remote control center also includes prewarning unit, and prewarning unit Connection Service device is used for judging the signal of scene equipment level and sending early warning or warning reminding, and alerting pattern includes that note is reminded, acousto-optic is reminded and voice reminder.
This utility model provides the benefit that: along with the swift and violent growth of China's economy, the need for electricity of every profession and trade also increases severely with day.Stable and the safety of power matching network power transmission, directly influences the economic development of each Electricity customers, is to pull one hair and move the whole body.The defect that the insulating properties of power equipment exist due to electrode and insulating surface, it may occur that electric discharge in various degree.According to the difference of electric field intensity, can in succession produce corona, flashover or electric arc, thus cause tripping operation, burn switch cubicle, transformator, even burn the accident operated and occur.For these potential faults, it is critical only that and early find early prevention, stop it to continue the trend deteriorated, it is to avoid cause a serious accident owing to hidden danger continues deterioration.Native system relies under strong electromagnetic interference environment and is not extracted local discharge signal by the Ultraviolet sensor unit of electromagnetic interference influence, use uhf sensor unit to extract power equipment internal discharge situation simultaneously, the potential faults of electric power facility can be monitored in real time, in accident incubation period i.e. to staff's early warning, maintenance equipment and the purpose improving running environment in time, in order to avoid causing more serious consequence such as burning apparatus etc., reduce economic loss, ensure safety power supply, this system is measuring local discharge reliability, the advantage that in accuracy and capability of fast response, the person of having is incomparable.
Accompanying drawing explanation
Below the content expressed by this specification accompanying drawing and the labelling in figure are briefly described:
Fig. 1 is the Organization Chart of the shelf depreciation real time on-line monitoring warning system of detailed description of the invention of the present utility model.
Fig. 2 is the work block diagram of the signal processing module of detailed description of the invention of the present utility model.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, detailed description of the invention of the present utility model is such as mutual alignment and annexation, the effect of each several part and operation principle, the manufacturing process between the involved shape of each component, structure, each several part and operates with method etc., it is described in further detail, to help those skilled in the art that inventive concept of the present utility model, technical scheme are had more complete, accurate and deep understanding.
Shelf depreciation real time on-line monitoring warning system integrate measurement, monitor, control, communicate, analyze, data statistics, show, the several functions such as storage, the Organization Chart of shelf depreciation real time on-line monitoring warning system is as shown in Figure 1, shelf depreciation real time on-line monitoring warning system is hierarchical network structure, including scene equipment level, substation level and remote control center, scene equipment level installs the signal processing module of monitoring situation, substation level installs aobvious control terminal, and daemon software is installed at remote control center.Scene equipment level includes multiple stage transformer station, is mounted with signal processing module and RS485 communication interface in each transformer station, and signal processing module detects ultraviolet radiation and the hyperfrequency radiation information judge whether power equipment occurs shelf depreciation of power equipment in real time.The functional module of the monitoring partial discharges fault in signal processing module has selected monitoring means, monitoring means is provided with Ultraviolet sensor unit and the uhf sensor unit of integration, Ultraviolet sensor unit uses ultraviolet Radiation monitoring shelf depreciation situation, uhf sensor unit utilizes the internal discharge situation of super high frequency technique monitoring power equipment, ultraviolet signal and ultra-high frequency signal that Ultraviolet sensor unit and uhf sensor unit detect are sent to microprocessor, the discharge scenario of microprocessor judges power equipment after treatment.Judged result and the detection data of signal processing module are sent by RS485 communication interface, substation level includes multiple stage display and signal intermediate transit point, each signal processing module connects a display and corresponding signal intermediate transit point, the judgment result displays of signal processing module is over the display, the outfan of signal processing module connects display, and display connects signal intermediate transit point and sends data to remote control center.Scene equipment level is analyzed the shelf depreciation situation of power equipment by signal processing module detection and the result of detection is sent to substation level, scene equipment level and substation level are equipped with RS485 communication interface, signal is transmitted by RS485 communication interface, the testing result of substation level displaying scene mechanical floor is also forwarded to remote control center, and remote control center can be with the testing result of displaying scene mechanical floor and send early warning and remind staff to check the situation of transformer station in time.
Office electric discharge from during, the electronics in air constantly obtains and releases energy, and when electronics releases energy, is attended by luminous radiation phenomenon, and its radiation spectrum includes visible ray, infrared ray, ultraviolet.When the radiation of its medium ultraviolet is propagated in an atmosphere, decay is less, and the ultraviolet of day-old chick is not easily susceptible to the interference of environmental factors, relatively stable, so selecting ultraviolet radiation as the characteristic quantity of shelf depreciation real time on-line monitoring, is a kind of extremely effective means.Use the shelf depreciation situation of hyperfrequency detecting devices built-in electrical insulation, surface and internal discharge all being monitored without dead angle simultaneously.Therefore shelf depreciation uv measurement and hyperfrequency early warning alert analysis system have that capacity of resisting disturbance is strong, rate of false alarm is low, sensitivity advantages of higher.It addition, use Ultraviolet sensor unit as system headend, both cost was significantly less than the ultraviolet imager of costliness, can realize again real time on-line monitoring, have great application value in power matching network system.
As shown in the work block diagram of Fig. 2 signal processing module, signal processing module includes Ultraviolet sensor unit, uhf sensor unit, microprocessor, alarm unit, communication module and liquid crystal display, Ultraviolet sensor unit and uhf sensor unit are connected to the input of microprocessor, need not be arranged on the inside of power equipment, the outfan of microprocessor connects alarm unit, communication module and liquid crystal display, communication module is provided with RS484 communication interface, connects substation level by RS484 communication interface and transfer information to substation level.Ultraviolet sensor unit uses ultraviolet Radiation monitoring shelf depreciation situation, uhf sensor unit utilizes the internal discharge situation of super high frequency technique monitoring power equipment, ultraviolet signal and ultra-high frequency signal that Ultraviolet sensor unit and uhf sensor unit detect are sent to microprocessor after treatment, whether the power equipment of microprocessor judges detection there is shelf depreciation, if there being shelf depreciation situation, sending alarm and reminding staff by alarm unit and checking in time, signal processing results and the detection data of microprocessor can show at liquid crystal display, it is sent to substation level by communication module simultaneously.
Ultraviolet sensor unit receives the ultraviolet light pulse that shelf depreciation gives off, it is converted into electric pulse, then it is amplified, filters and after AD sampling, signal is delivered to microprocessor, passes through programming, it is pulsatile once the signal record exceeding certain level value, within the time of regulation, if overall pulse number has exceeded the threshold values preset in microprocessor, then it is judged to the generation having shelf depreciation, alarm unit is reported to the police, and the data of record is shown on liquid crystal display.Equally, the antenna of uhf sensor unit receives the ultra-high frequency signal of shelf depreciation radiation, after amplification, mixing, detection, filtering and AD sample, microprocessor is transferred to judge to control, finally result is delivered to the display of alarm unit and substation level, it is possible to by communication module, signal is ultimately sent to remote control center.Owing in switch cubicle, equipment is complicated, narrow space, so monitoring device to be easily installed, its size and shape will reasonably design and use the metal-back closed, and plays good shielding action, is of value to anti-interference.
Ultraviolet sensor unit includes the preposition reverse scaling circuit of Ultraviolet sensor, filter circuit and AD sample circuit, Ultraviolet sensor includes day-old chick ultraviolet light sensing tube and UV driven circuit, the ultraviolet radiation that day-old chick ultraviolet light sensing tube detection shelf depreciation produces, UV driven circuit connects the outfan of day-old chick ultraviolet light sensing tube, preposition reverse scaling circuit, filter circuit and AD sample circuit are sequentially connected electrically, the input of preposition reverse scaling circuit connects UV driven circuit, and the outfan of AD sample circuit connects the input of microprocessor.
Ultraviolet sensor unit in signal processing module, the ultraviolet major part wavelength that shelf depreciation produces is in the region of 280～400mm, also there is fraction wavelength 160～280mm, sunlight also contains ultraviolet, but the part almost all that wavelength is less than 280mm is relatively unabsorbed by ozone, referred to as solar blind.In order to remove the interference of visible light source, so using the ultraviolet radiation that highly sensitive day-old chick ultraviolet light sensing tube detection shelf depreciation produces.This utility model is also provided with the UV driven circuit with arc-suppression function, when the surface of ultraviolet incident light negative electrode produces photoelectric effect, be converted to the current pulse signal of negative sense, flow through preposition reverse scaling circuit, obtain forward voltage signal, it is filtered processing of circuit again, is run through second order butterworth high pass filter, filters low-frequency disturbance.In order to be able to meet the input requirements of AD sample circuit, also need to carry out forward and amplify adjustment, then analog digital conversion is carried out, so being additionally provided with forward amplifying circuit and analog to digital conversion circuit between filter circuit and AD sample circuit, the output signal of filter circuit flows through forward amplifying circuit and analog to digital conversion circuit carries out forward and amplifies adjustment and analog-to-digital conversion process, finally send microprocessor to further process signal.
Uhf sensor unit includes antenna, high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card, antenna receives the ultra-high frequency signal of shelf depreciation and transfers out, high integration amplifier connects antenna and is used for amplifying the transmission signal of antenna, high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card are sequentially connected electrically for processing the ultra-high frequency signal that antenna receives, and the outfan of A/D capture card connects the microprocessor arranged in signal processing module.Ultra-high frequency antenna is for receiving the ultra-high frequency signal that shelf depreciation produces, and the quality of its performance is most important, it is contemplated that be applicable to volume and the cost factor of switch cubicle, selects whip antenna to be designed in this utility model.For hyperfrequency voltage signal after the signal input circuit that antenna receives, through propagating the diffraction in way and reflection, signal intensity is the faintest, cannot directly process, so first passing through an amplifier before extracting useful information, during to ensure discharge signal arrival microprocessor, the power magnitude of signal meets its input range.This part uses high integration amplifier, and its operating frequency range is 400～4000MHz, using the teaching of the invention it is possible to provide low noise and high-gain.Ultra-high frequency signal is highly prone to interference in processing procedure, and frequency is the highest, the frequency acquisition of general A/D capture card is extremely difficult to requirement, but measurement of partial discharge is generally only concerned the peak value of signal and the phase place of appearance thereof, ultra-high frequency signal is collected without distortions and also has little significance, and data volume is very big, data intractability is high, so arranging mixting circuit to reduce the frequency of local discharge superhigh frequency signal.The ultra-high frequency signal of power equipment is through during process is input to microprocessor successively of high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card.
The major function of substation level is centralized displaying information actuation means transmission signal, specifically include multiple display and signal intermediate transit point, the outfan of the input field equipment connecting layer of display is used for the real time information of displaying scene mechanical floor, the outfan of the input field equipment connecting layer of signal intermediate transit point, the outfan of signal intermediate transit point connects remote control center.Scene equipment level and substation level are provided with RS485 communication interface, between scene equipment level and substation level, by RS485 communication interface and ICP/IP protocol transmission signal between substation level and remote control center.The RS485 communication interface of scene equipment level is arranged in the communication module in signal processing module, the RS485 communication interface of substation level is arranged on signal intermediate transit point, signal can be transmitted by ICP/IP protocol between microprocessor and display, signal can be transmitted by RS485 communication interface between microprocessor and signal intermediate transit point, the detection data of display displaying scene equipment and discharge scenario, signal intermediate transit point transmits the signal received to remote control center by RS485 communication interface.
Remote control center includes server, client, printer and network, and server receives the signal of substation level by network, and client Connection Service device is used for the information of displaying scene mechanical floor, and printer connects on the client.Server receives detection data and the electric discharge judged result of scene equipment level by network, client can also receive the information of scene equipment level by Connection Service device, employee can also use printer print data out, it is achieved that remotely checks the function of field apparatus situation.Remote control center also includes prewarning unit, and prewarning unit Connection Service device is used for judging that the signal of scene equipment level sends early warning or warning reminding, and alerting pattern includes that note is reminded, acousto-optic is reminded and voice reminder.
By ultra-high frequency antenna detection shelf depreciation, there is good effect, the feature of hyperfrequency is the shelf depreciation that can detect built-in electrical insulation, and signal is difficult to block in transmittance process, but ultra-high frequency signal is as easy as rolling off a log by other High-frequency Interference, such as neighbouring shelf depreciation, radio communication, broadcasting and TV signal, remote measuring and controlling signal etc., false alarm rate is high, and the judgement for shelf depreciation brings certain difficulty.This utility model carries out quantifying to assess the situation of electric discharge by the intensity of detection ultraviolet light, it it is a kind of new method of detection high pressure equipment electric discharge, ultraviolet light detector is utilized to convert optical signals to the signal of telecommunication, by the analyzing and processing of the signal of telecommunication reflects the situation of shelf depreciation.Two kinds of detection methods being integrated, there are three aspect advantages, one is highly sensitive, and the ultraviolet spectra produced due to high-tension electricity apparatus local discharge is concentrated mainly on 200～below 400nm wave bands.In air, the wave-length coverage of solar radiation is the widest, but the composition between wavelength 220～280nm is almost fully absorbed by the ozone layer of the earth, and the wavelength ultraviolet in " the solar spectrum blind area " of below 300nm radiates and become the faintest.Two is that capacity of resisting disturbance is strong, due to the internal black box environment being typically to close of power equipment, when normally working, device interior has the strongest electromagnetic interference, not having UV signal, the ultraviolet radiation signal hence with this wave band is little affected by the impact of external environmental light as detection object.Three is that the ultraviolet signal produced due to electric discharge need not directly contact with operation equipment when detection with high-frequency signal, but carries out under separated by a distance with equipment, and ultraviolet detection can be accomplished not have a power failure, do not affect system running state.
Above in conjunction with accompanying drawing, this utility model is exemplarily described; obviously this utility model implements and is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model design is carried out with technical scheme; or the most improved design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.Protection domain of the present utility model should be as the criterion with the protection domain that claims are limited.
Claims (9)
1. a shelf depreciation real time on-line monitoring warning system, it is characterized in that, described shelf depreciation real time on-line monitoring warning system is hierarchical network structure, including scene equipment level, substation level and remote control center, the signal processing module of scene equipment level is provided with ultraviolet light transducer unit and the monitoring means of uhf sensor unit combination, for detecting the internal shelf depreciation situation of power equipment, substation level field equipment connecting layer is used for receiving the information of scene equipment level and showing monitoring result and transmission information, remote control center connects substation level and is used for remotely receiving field data information；Described signal processing module also includes microprocessor, alarm unit and communication module, Ultraviolet sensor unit connects and is used on the microprocessor receiving the ultraviolet light pulse in shelf depreciation radiation the signal that receives of transmission to microprocessor, uhf sensor unit connects microprocessor and is used for receiving the ultra-high frequency signal in shelf depreciation radiation the signal that receives of transmission to microprocessor, microprocessor judges the generation of shelf depreciation according to the signal that Ultraviolet sensor unit and uhf sensor unit send, alarm unit connects microprocessor and is used for sending early warning and alarm signal according to the instruction of microprocessor, the input of communication module connects the outfan of microprocessor, the outfan of communication module connects substation level.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterised in that described signal processing module also includes liquid crystal display, liquid crystal display is connected to the outfan of microprocessor for showing the result of calculation of microprocessor.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterized in that, described Ultraviolet sensor unit includes Ultraviolet sensor, preposition reverse scaling circuit, filter circuit and AD sample circuit, Ultraviolet sensor includes day-old chick ultraviolet light sensing tube and UV driven circuit, the ultraviolet radiation that day-old chick ultraviolet light sensing tube detection shelf depreciation produces, UV driven circuit connects the outfan of day-old chick ultraviolet light sensing tube and is used for ultraviolet signal is converted to current pulse signal, preposition reverse scaling circuit, filter circuit and AD sample circuit are sequentially connected electrically, the input of preposition reverse scaling circuit connects UV driven circuit and receives current pulse signal, the outfan of AD sample circuit connects the microprocessor arranged in signal processing module.
Shelf depreciation real time on-line monitoring warning system the most according to claim 3, it is characterised in that be provided with second order Butterworth high-pass filtering in described filter circuit for filtering low-frequency disturbance.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterized in that, described uhf sensor unit includes antenna, high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card, antenna receives the ultra-high frequency signal of shelf depreciation and transfers out, high integration amplifier connects antenna and is used for amplifying the transmission signal of antenna, high integration amplifier, mixting circuit, inspection filter circuit and A/D capture card are sequentially connected electrically for processing the ultra-high frequency signal that antenna receives, the outfan of A/D capture card connects the microprocessor arranged in signal processing module.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterized in that, described substation level includes multiple display and signal intermediate transit point, the outfan of the input field equipment connecting layer of display is used for the real time information of displaying scene mechanical floor, the outfan of the input field equipment connecting layer of signal intermediate transit point is used for receiving detection information and the shelf depreciation information of scene equipment level, and the outfan of signal intermediate transit point connects remote control center.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterized in that, RS485 communication interface it is provided with, by RS485 communication interface or ICP/IP protocol transmission signal between scene equipment level and substation level, between substation level and remote control center in described scene equipment level and substation level.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterized in that, described remote control center includes server, client, printer and network, server receives the signal of substation level by network, client Connection Service device is used for the information of displaying scene mechanical floor, and printer connects on the client.
Shelf depreciation real time on-line monitoring warning system the most according to claim 1, it is characterized in that, described remote control center also includes prewarning unit, prewarning unit Connection Service device is used for judging the signal of scene equipment level and sending early warning or warning reminding, and alerting pattern includes that note is reminded, acousto-optic is reminded and voice reminder.
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| CN201521005449.3U CN205450180U (en) | 2015-12-01 | 2015-12-01 | Real -time on -line monitoring alarm system of partial discharge |
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| CN201521005449.3U CN205450180U (en) | 2015-12-01 | 2015-12-01 | Real -time on -line monitoring alarm system of partial discharge |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120911A (en) * | 2018-03-08 | 2018-06-05 | 云南电网有限责任公司电力科学研究院 | A kind of monitoring system of ultraviolet detection shelf depreciation |
| CN108333479A (en) * | 2017-12-11 | 2018-07-27 | 华北电力大学（保定） | A kind of electrion synchronous based on the triggering of blind type light sensation |
| CN112363029A (en) * | 2020-10-31 | 2021-02-12 | 国网天津市电力公司 | Equipment corona discharge online monitoring system and monitoring method thereof |
| CN112485623A (en) * | 2020-12-16 | 2021-03-12 | 南方电网电力科技股份有限公司 | Multi-path accidental transient partial discharge rapid detection device |
| CN113706840A (en) * | 2021-08-12 | 2021-11-26 | 广东电网有限责任公司广州供电局 | Partial discharge ultrahigh frequency monitoring grading alarm circuit and alarm device and method thereof |
-
2015
- 2015-12-01 CN CN201521005449.3U patent/CN205450180U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333479A (en) * | 2017-12-11 | 2018-07-27 | 华北电力大学（保定） | A kind of electrion synchronous based on the triggering of blind type light sensation |
| CN108120911A (en) * | 2018-03-08 | 2018-06-05 | 云南电网有限责任公司电力科学研究院 | A kind of monitoring system of ultraviolet detection shelf depreciation |
| CN112363029A (en) * | 2020-10-31 | 2021-02-12 | 国网天津市电力公司 | Equipment corona discharge online monitoring system and monitoring method thereof |
| CN112485623A (en) * | 2020-12-16 | 2021-03-12 | 南方电网电力科技股份有限公司 | Multi-path accidental transient partial discharge rapid detection device |
| CN112485623B (en) * | 2020-12-16 | 2021-08-13 | 南方电网电力科技股份有限公司 | Multi-path accidental transient partial discharge rapid detection device |
| CN113706840A (en) * | 2021-08-12 | 2021-11-26 | 广东电网有限责任公司广州供电局 | Partial discharge ultrahigh frequency monitoring grading alarm circuit and alarm device and method thereof |
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