CN104502759A - Intelligent monitoring system of distribution network switch cabinet - Google Patents
Intelligent monitoring system of distribution network switch cabinet Download PDFInfo
- Publication number
- CN104502759A CN104502759A CN201410792103.6A CN201410792103A CN104502759A CN 104502759 A CN104502759 A CN 104502759A CN 201410792103 A CN201410792103 A CN 201410792103A CN 104502759 A CN104502759 A CN 104502759A
- Authority
- CN
- China
- Prior art keywords
- data
- monitoring
- switch cabinet
- control box
- temperature
- 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
Abstract
The invention relates to an intelligent monitoring system of a distribution network switch cabinet. The system adopts an embedded installation technology to carry out intelligent monitoring on operation state of equipment in a switch station on the basis of an ultra-high-frequency partial discharge detection technology and a temperature monitoring technology. The problem of difficulty in real-time monitoring on the environment temperature and the equipment insulation state in the switch station cabinet is effectively solved. Equipment insulation state data is transmitted in real time; the partial discharge of a cable terminal, a busbar, a switch on-off device and the like in the switch cabinet caused by insulation defects or insulation aging can be monitored in real time; the development trend and the operation state of the insulation defects in a distribution network cabinet are monitored in real time; the insulation defects or faults which can become more severe can be discovered and warned in advance. When the system is put into operation, the safety operation level and the intelligent management level of the switch station can be greatly improved; serious power failures and fire accidents caused by the insulation defects of the equipment can be effectively avoided, and periodic detection is changed to be condition overhaul. The safety reliability and the automation degree of power system operation are improved.
Description
Technical field
Monitoring technology, particularly a kind of distribution Intelligent switch cabinet monitoring system when the present invention relates to a kind of power distribution network breaker in middle cabinet repair based on condition of component.
Background technology
In a power distribution system, because lines branch is more, the method for operation is complicated, and the frequent and the old and new's equipment of sudden load change mixes, and the reliability of power supply is a greater impact.Therefore, need to monitor equipment in distribution network systems, to prevent ageing equipment, the lower degradation problem of insulation, avoid causing device damage, interruption of power supply.
The traditional monitoring technology of distribution switch cubicle mainly comprises that artificial line is maked an inspection tour, test and other detection techniques, traditional technological means mainly relies on withstand voltage test to carry out insulating property inspection when equipment has a power failure, withstand voltage test can find larger insulation defect, but still be there is the possibility had an accident by the switch cubicle after withstand voltage test, find this is because some small defects can not be simple by withstand voltage test.Meanwhile, because the preventive trial periodic intervals of distribution switch cubicle is 3-6, be but helpless for the insulation defect between twice preventive trial time interval.
And the mode that current artificial line is patrolled and examined, regularly off-line type supervision can only be carried out with thermal infrared imager, temperature measurer or temperature indicating patch etc. to equipment to coupling part heat condition such as contacts, the method can only measure the contact temperature be exposed, all helpless to the accident potential such as electric discharge, insulation existed, monitoring of then having no idea in metal-enclosed switchgear.And because distribution switch cubicle is closed equipment, and shell has shielding action, therefore some live detection technology, as infrared, ultraviolet technology etc., the effect of measurement is just poor.Thus, the distribution switch cubicle of the prior art maintenance mode that can only adopt regularly, have a power failure.
Summary of the invention
The object of the invention is to provide according to the deficiencies in the prior art part a kind of and effectively can monitor state in distribution switch cubicle, hidden danger, realize the distribution Intelligent switch cabinet monitoring system of real-time status maintenance.
The object of the invention is to be realized by following approach:
Distribution Intelligent switch cabinet monitoring system, its main points are, comprise following composition:
1) data acquisition unit, control box and main website data handling system; Wherein: data acquisition unit is made up of all kinds of embedded detecting device be arranged in each switch cubicle, include ultrahigh frequency sensing office and put monitoring means and temperature sensing unit; The signal output part of data acquisition unit is connected with control box by data cable, and control box is arranged in distribution station, is sent in main website data handling system by wireless network by data;
2) lower floor that monitoring means is arranged on inside switch cabinet is put in the ultrahigh frequency sensing office described in, when there is insulation fault and shelf depreciation occur in inside switch cabinet, the ultrahigh frequency electromagnetic signal of more than 1GHz can have been encouraged, ultrahigh frequency sensing office puts monitoring means and receives this electromagnetic signal, row relax of going forward side by side is changed, and is then sent to control box by data cable;
3) described temperature sensing unit is then arranged on the upper, middle and lower of inside switch cabinet respectively; Temperature sensing unit gathers the temperature data of inside switch cabinet, and is sent to control box by data cable;
4) measurement data of all data acquisition units collected by control box, and judge one by one according to data category, when data exceed the threshold values set by its corresponding classification, generate alert data, and by exceed threshold values sensing unit measurement data and process after alert data send in main website data handling system by wireless network;
5) main website data handling system is by resolving the Monitoring Data bag that sends of control box, extracts abnormal information wherein, draws monitoring real-time curve or stores data record, sending alarm signal.
Distribution switch cubicle of the present invention refers to: other utility appliance primarily of bus, primary cut-out switch, reactor winding, mutual inductor, power capacitor, lightning arrester, high-tension fuse, secondary device and necessity formed.All these equipment; combine with the form of switch cubicle; the structure of cabinet of opening the light is substantially similar; mainly be divided into bus-bar room, breaker chamber, linear quadratic control room, feeder line room, generally have steel plate to isolate inner member between each room and comprise: bus, isolating switch, conventional relays, comprehensive relay protection device, measuring instrument, isolation knife, pilot lamp, earthing etc.
Shelf depreciation is the root of all insulation faults, the fault of electric product and insulation aging and damage in close relations.And the aging and damage of insulation is under the effect of voltage, finally all produce fault because of shelf depreciation.So the detection of the Insulation monitoring of electrical equipment especially shelf depreciation is one of very important means, when there is shelf depreciation in insulation, the phenomenons such as electromagnetic wave, sound, light, heat can be attended by occur, sensor collection signal can be selected to carry out analyzing and judge process according to the phenomenon of correspondence.This detection method for local discharge detects for open insulation fault at present, this is because Partial Discharge Detection needs to consider electromagnetic radiation characteristic, must realize under good environmental baseline, too many interference can not be subject to, in electric system, Characteristics of Partial Discharge weighs the important indicator of electric power transformer insulated mass of system at present, and in delivery test, every platform all will do partial discharge test.Transformer after mounting, in commissioning test, when the discovery gas content of oil that is in operation exceeds standard, generally also will do partial discharge test.
And in distribution switch cubicle, be incorporated into a cabinet inside due to the integrated of power equipment, and adopt the enclosed type cabinet with shield effectiveness, the electromagnetic environment therefore in cabinet is complicated, disturbed condition is too many, does not possess storing sensitive element---and sensor is measured in real time.Under such circumstances, those skilled in the art can not consider sensor to be placed in distribution switch cubicle completely, to such an extent as to the long duration before this all there will not be and monitoring means is put in ultrahigh frequency sensing office is applied in shielding, enclosed distribution switch cubicle, thus also form technology prejudice.The present inventor overcomes this technology prejudice just, office being put detection technique is applied in shielding, enclosed distribution switch cubicle, its reason is, when inside switch cabinet generation shelf depreciation, can encourage the ultrahigh frequency electromagnetic signal (UHF) of more than 1GHz.Switch cabinet body is originally as metal material, its shield effectiveness can make cabinet environment undesired signal to external world have certain inhibition, it is less that its enclosed construction just in time can make uhf electromagnetic wave signal decay when inside switch cabinet is propagated, the more important thing is that UHF signal can obtain reflection and strengthen in cabinet, even if therefore in cabinet, electromagnetic environment is complicated, still can receive with adopting the ultrahigh frequency sensing office of embedded field engineering to put monitoring means easily.Thus the detection achieved distribution inside switch cabinet real-time status, effective monitoring distribution switch cubicle ruuning situation, can Timeliness coverage hidden danger, and process in time, effectively avoid the significant blackouts because apparatus insulated defect occurs and fire failure, the set phase is detected as repair based on condition of component.Improve safe reliability and the automaticity of Operation of Electric Systems.
Same, when the temperature in switch cubicle is too high, equipment in cabinet is run there is certain danger, the aging speed of equipment in meeting acceleration switch cabinet; Too high temperature also may be caused by the equipment broken down.Temperature in monitoring switch cabinet can the severe degree of Timeliness coverage equipment operating environment, also can the Timeliness coverage equipment that may break down.The measuring technique that conventional temperature sensor adopts infrared, ultraviolet etc. contactless, measurement effect is poor, and the upper, middle and lower layer of the present invention in switch cubicle installs embedded temperature sensor respectively, the temperature variation be used in monitoring switch cabinet.When overheating fault appears in the power equipment in switch cubicle, because hot-air can upwards spread, be placed on the temperature variation of the temperature sensor meeting aware switch cabinet internal abnormality at top, when temperature exceedes pre-set threshold value, produce corresponding alerting signal.
The present invention can be specially further:
Described ultrahigh frequency sensing office puts monitoring means and includes superfrequency sensor, ultrahigh-frequency signal transmission coaxial-cable, narrow band filter, ultrahigh-frequency signal amplifier, local oscillation signal generator, frequency mixer and superfrequency mixed frequency signal collecting unit, superfrequency sensor, narrow band filter, ultrahigh-frequency signal amplifier, local oscillation signal generator sequentially connect, and are connected to control box finally by ultrahigh-frequency signal transmission coaxial-cable; In addition, superfrequency mixed frequency signal collecting unit is connected with frequency mixer, and the output terminal of frequency mixer is connected in narrow band filter.
Because switch cubicle environment is comparatively complicated, in order to ensure the signal that can obtain shelf depreciation, monitoring means is put except adopting conventional superfrequency office to put except sensor in ultrahigh frequency sensing office, also be provided with superfrequency frequency mixer, the UHF that sensor generally gathers very high frequency part is put in superfrequency office, superfrequency frequency mixer then can obtain the UHF of more money range frequencies, when the two collects signal simultaneously, then put sensor for elder generation with superfrequency office, after carrying out the process such as filtering, amplification, be connected to control box by ultrahigh-frequency signal transmission coaxial-cable.
Be provided with the intelligent analysis system based on distributed real time on-line monitoring and remote control technology in control box, its according to setting communication protocol communicate with data acquisition unit, reception data or under send instructions; Show the information from data acquisition unit, comprise positional information, measurement data and affair alarm.
Like this, intelligent analysis system can also provide reliably for user, intuitively, man-machine interface easily, enable user grasp real time data and the alarm condition of switch cubicle duty.Realize the supervision of each communication unit running status: realize 24 hours real time data inspectings, the function such as potential faults is accurately located, remote alarm, by the discovery early of hidden danger, process early, potential faults is eliminated in bud.Warning message directly can send the O&M responsible official of source of early warning by note form.
The described intelligent analysis system based on distributed real time on-line monitoring and remote control technology is provided with adjustable time window and an adjustable upper temperature limit threshold value of one from 1 minute to 160 minutes, mean value in 1 minute is got to the temperature data collected, compare with the threshold value of setting, in the time period set, continuous acquisition is to when exceeding the temperature of upper temperature limit threshold value, and system sends warning information.
The internal temperature of switch cubicle is in During Process of Long-term Operation, can along with spring, summer, autumn and winter or the every day of change sooner or later, have larger fluctuation range, when the temperature having accident potential as switch cabinet contact loose contact causes rises, sensor can detect the abnormal temperature data far above environment temperature, and can considerable time be continued, namely the warning strategies of temperature carries out above-mentioned setting based on this feature.
The described intelligent analysis system based on distributed real time on-line monitoring and remote control technology is provided with adjustable time window and an adjustable discharge data upper limit threshold of one from 1 minute to 48 hours, after the average in the discharge data collected 1 minute, compare with the discharge data upper limit threshold of setting, set time period in continuous acquisition to discharge data exceed discharge data upper limit threshold time, system sends warning information.
The inside office to one's heart's content condition of uhf sensor detector switch cabinet equipment, during inside switch cabinet insulation existing defects, when generation is put in office, sensor can detect the abnormal Partial Discharge Data far above neighbourhood noise, exceptional value can higher than neighbourhood noise more than hundred times, and meeting strengthen continuously, the warning strategies of ultrahigh frequency is namely based on this feature, because the development of this hidden danger is slower, intelligent analysis system devises a wider adjustable time range, user can according to the feature capping threshold value of equipment and timing statistics section, the discharge data exceeding threshold value is collected in section when reaching the alarm ratio of setting at this moment, system sends warning information.
Wireless network between control box and main website data handling system takes the GPRS of China Mobile or the wireless network of China Telecom CDMA, data communication mode is carried out according to cabinet No., once communicated rack all the sensors data, communication takes response mode to transmit data, packet carries time tag, mark acquisition time information.
In sum, the invention provides a kind of distribution Intelligent switch cabinet monitoring system, system is based on ultra high frequency PD detection technology, temperature monitoring technique, TCP/IP, GPRS and LAN (Local Area Network) signal transmission technology, adopt embedded field engineering to carry out intelligent monitoring to the running status of switch station equipment.The Real-Time Monitoring problem of effective solution switchyard cabinet environment temperature and apparatus insulated state.Transmission equipment state of insulation data in real time, can the shelf depreciation, the development trend of Real-Time Monitoring distribution network cabinet built-in electrical insulation defect, the running status to developing into serious insulation defect or fault finds early and gives warning in advance, the put into operation safety operation level and intelligent management level that can substantially increase switchyard of this system that produce due to insulation defect or insulation ag(e)ing such as Real-Time Monitoring inside switch cabinet cable termination, busbar and switch breaking device; Effectively avoid the significant blackouts because apparatus insulated defect occurs and fire failure, the set phase is detected as repair based on condition of component.Improve safe reliability and the automaticity of Operation of Electric Systems.
Embodiment
Most preferred embodiment:
Distribution Intelligent switch cabinet monitoring system, comprises following composition:
1, system composition: system is made up of data acquisition unit (sensor, temperature sensor are put in the main UHF office that contains), control box, main website data handling system.
2, data acquisition unit is primarily of the embedded detecting device composition of the variety classes be arranged in each switch cubicle:
Monitoring means is put in ultrahigh frequency (UHF) sensing office: each inside switch cabinet structure point upper, middle and lower three layers of data.Lower floor is cable floor, and has bus and middle level equipment connection, and native system is installed embedded UHF office in lower floor and put sensor, temperature sensor.UHF office puts sensor and is made up of parts such as superfrequency sensor, ultrahigh-frequency signal transmission coaxial-cable, narrow band filter, ultrahigh-frequency signal amplifier, local oscillation signal generator, frequency mixer, superfrequency mixed frequency signal collecting units.
Temperature sensing unit: the upper, middle and lower layer in switch cubicle installs embedded temperature sensor respectively, the temperature variation be used in monitoring switch cabinet.Temperature sensor is connected to the temperature collect module in control box by three-wire system cable, after temperature collect module collects temperature, send the data to control box by RS-485 bus.When overheating fault appears in the power equipment in switch cubicle, because hot-air can upwards spread, be placed on the temperature variation of the temperature sensor meeting aware switch cabinet internal abnormality at top, when temperature exceedes pre-set threshold value, produce corresponding alerting signal.
3, control box: the sensor signal in switch cubicle is transferred in the system control box that is arranged in station interior walls by on-the-spot coaxial or signal cable, control module collects the measurement data of all data acquisition units, after comprehensively analyzing and judging, by the warning after screening and process and sensor measurement data, by GPRS wireless network transmissions to the data server in a distant place or centralized control center.Control box management software: be the intelligent analysis system based on distributed real time on-line monitoring and remote control technology, for user provide reliably, intuitively, man-machine interface easily, enable user grasp real time data and the alarm condition of switch cubicle duty.Management software communicates with collecting unit according to certain communication protocol, receives data or transmitting order to lower levels; Realize the supervision of each communication unit running status.The positional information of display measurement monitoring means, measurement data and affair alarm etc.Warning message directly can send the O&M responsible official of source of early warning by note form.
4, main website data handling system: mainly realizing the function such as analysis, judgement, early warning, reasoning to data, is the core of system.By resolving the Monitoring Data bag that control box sends, extracting abnormal information wherein, drawing monitoring real-time curve or storing history, by pre-setting abnormal alarm threshold values, possessing abnormal alarm function.It, by the Monitoring Data intellectual analysis collected, provides reference data to the operation of power equipment, also can as the formulation foundation of Plant maintenance plan.Analytic system is based on GIS geographic model, Unit account of plant Back ground Information, and in conjunction with gathering the business historical datas such as the UHF office of returning puts, temperature, abnormal situation occurs reasoning state, and gives early warning.
5, the warning strategies of temperature: the adjustable time window and the adjustable upper temperature limit threshold value that devise from 1 minute to 160 minutes, control box gets the mean value in 1 minute to the temperature data collected, compare with the threshold value of user's setting, user can according to the feature capping threshold value of equipment and timing statistics section, at this moment, in section, continuous acquisition is to when exceeding the temperature of threshold value, and system sends warning information.
6, the warning strategies of ultrahigh frequency: control box management system devises adjustable time window and an adjustable upper limit threshold of from 1 minute to 48 hours, control box is to after the average in the discharge data collected 1 minute, compare with the threshold value of user's setting, user can according to the feature capping threshold value of equipment and timing statistics section, collect the discharge data exceeding threshold value at this moment in section when reaching the alarm ratio of setting, system sends warning information.
7, the wireless network between control box and main website data handling system takes the GPRS of China Mobile or the wireless network of China Telecom CDMA, data communication mode is carried out according to cabinet No., once communicated rack all the sensors data, communication takes response mode to transmit data, packet carries time tag, mark acquisition time information.
Distribution Intelligent switch cabinet monitoring system of the present invention mainly has following features and monitoring effect:
1, the on-line monitoring of 10kV distribution network cable joint defect shelf depreciation.The existence of the insulation defect of cable termination inside and insulation ag(e)ing long-term shelf depreciation under showing as working voltage.2, the detection of Corona Discharge that in switch cubicle, the defect such as loose contact of bus bar causes.The defects such as the loosening and loose contact of bus bar can produce corona discharge under working voltage.3, the partial discharge monitoring of breaking device and high pressure bindiny mechanism.4, breaking device internal discharge produces frequency electromagnetic waves, by the internal discharge index of type UHF sensor monitoring breaking device.System adopts ultrahigh frequency (UHF) local discharge sensor to carry out the monitoring of electric discharge corona to above-mentioned situation.5, the in-cabinet temperature exception monitoring that causes of inside switch cabinet equipment failure.
Two kinds of sensors all belong to non-electrical equipment, ensure that the maintenance that do not have a power failure of system.The shelf depreciation that system Real-Time Monitoring inside switch cabinet cable termination, bus bar and breaking device etc. produce due to insulation defect or insulation ag(e)ing.The development trend of real-time oversight distribution network cabinet inherent vice.Native system by carrying out temperature monitoring to switch cubicle, the temperature variation in Timeliness coverage cabinet, and to abnormal temperature Realtime Alerts.The potential problems of Timeliness coverage inside switch cabinet, maintenance in time can avoid the generation of fire failure.
Distribution Intelligent switch cabinet monitoring system of the present invention provides following software support:
Control box adopts the intellectualizing system based on distributed real time on-line monitoring and remote control technology, by the function realized required by system, whole system is divided into the several task of having the parallel existence of priority.As CAN data acquisition session, RS485 communication task, liquid crystal display task, alarming processing task dispatching.The setting of right of priority is that the sequential run according to whole system is determined, more important and to the stricter task of requirement of real-time to system safety operation, is set as higher priority.In system operation, the priority of each task is changeless.System manager is engaged in after startup, the configuration information of first reading system, carry out system initialization operation, the all data structures of initialization, stack space, then sets up semaphore or the message queue of intertask communication respectively, the parameters such as host id, RS485 messaging parameter carry out initialization, then, main task creates multiple subtask again, and system program performs from the task that right of priority is the highest.Under the scheduling of μ C/OS-II system, constantly obtain the real time data of each sensor, and make respective handling, realize the systemic-functions such as communication, display, alarm; Electric harmonic interference, switching surge interference etc. suffered by system for field are quite large, cause program fleet, deadlock phenomenon sometimes, and therefore, design watchdog reset, can make System recover normal.
The functions such as this system realizes 24 hours real time data inspectings, potential faults is accurately located, remote alarm, process by finding the morning of hidden danger, early, potential faults is eliminated in bud, reach raising power supply reliability, improve the object of patrolling and examining efficiency, improving scientific management level, promoting power administration's image, system provides touch key-press function, can realize corresponding to arrange or data be checked by corresponding function button, the most frequently used function is the condition monitoring entirely under the pattern of station and the data monitoring under single cabinet pattern.
Expert diagnostic system is the optional equipment of monitoring system, and by communication unit, expert diagnosis software and notebook computer formed.The control box of monitoring system has expert diagnosis interface, is connected with notebook computer (optional) by special communication unit (optional).By running shelf depreciation diagnostic software (optional), realize powerful local discharge signal electro-detection and analytic function.The setting such as centre frequency, Measurement bandwidth of detection signal can be changed in real time; The current impulse of real-time seizure shelf depreciation; There is real-time N-Q-Φ discharge spectrum; The oval figure function of real-time electric discharge etc.
The real time on-line monitoring technology (shelf depreciation real time monitoring) of extra-high tension unit is applied on distribution switch cabinet equipment Real-Time Monitoring with embedded mounting means system by first time at home, and achieves good actual monitoring effect:
1, do not have a power failure maintenance.In cabinet, an installation ultra-high frequency antenna and PT100 temperature sensor, belong to non-electrical equipment, and do not need to have a power failure and safeguard, system did not affect switching station and normally ran more than 20 years serviceable life.
2, early warning.Control box system real-time reception is from the real time data information of detecting unit, once data reach the alarm conditions that warning strategies is determined, warning system starts automatically.Shelf depreciation belongs to the slight level of 10-12 and measures, and is arranged, can find the defect worsened early, avoid the generation of accident by above-mentioned warning.
3, low cost.Consider in real system multi-point and wide-ranging, internal system adopts RS485 communication, the quantity of sensor freely can be configured by the demand of user, guarantee on the basis that cost is controlled, the part of user's critical concern is implemented to become more meticulous monitoring, and good extendability is provided, meet the extra normal development trend in electric system future.
4, high sensitivity.UHF signal obtains reflection and strengthens (discharge capacity Measurement Resolution: 0.1pC) in cabinet, and its signal intensity is far above ultrasonic signal and ground electric wave signal.The development trend of real-time oversight distribution network cabinet inherent vice, and when simulating shelf depreciation, have passed the functional acceptance of distribution Intelligent switch cabinet monitoring system partial discharge monitoring and warning, in conjunction with the experience of successful operation since putting into operation, all well describe the validity of on-line monitoring method.
It is same as the prior art that the present invention does not state part.
Claims (6)
1. distribution Intelligent switch cabinet monitoring system, is characterized in that, comprises following composition:
Data acquisition unit, control box and main website data handling system; Wherein: data acquisition unit is made up of all kinds of embedded detecting device be arranged in each switch cubicle, include ultrahigh frequency sensing office and put monitoring means and temperature sensing unit; The signal output part of data acquisition unit is connected with control box by data cable, and control box is arranged in distribution station, is sent in main website data handling system by wireless network by data;
The lower floor that monitoring means is arranged on inside switch cabinet is put in described ultrahigh frequency sensing office, when there is insulation fault and shelf depreciation occur in inside switch cabinet, the ultrahigh frequency electromagnetic signal of more than 1GHz can have been encouraged, ultrahigh frequency sensing office puts monitoring means and receives this electromagnetic signal, row relax of going forward side by side is changed, and is then sent to control box by data cable;
Described temperature sensing unit is then arranged on the upper, middle and lower of inside switch cabinet respectively; Temperature sensing unit gathers the temperature data of inside switch cabinet, and is sent to control box by data cable;
The measurement data of all data acquisition units collected by control box, and judge one by one according to data category, when data exceed the threshold values set by its corresponding classification, generate alert data, and by exceed threshold values sensing unit measurement data and process after alert data send in main website data handling system by wireless network;
The Monitoring Data bag that main website data handling system sends by resolving control box, extracts abnormal information wherein, draws monitoring real-time curve or stores data record, sending alarm signal.
2. distribution Intelligent switch cabinet monitoring system according to claim 1, it is characterized in that, described ultrahigh frequency sensing office puts monitoring means and includes superfrequency sensor, ultrahigh-frequency signal transmission coaxial-cable, narrow band filter, ultrahigh-frequency signal amplifier, local oscillation signal generator, frequency mixer and superfrequency mixed frequency signal collecting unit, superfrequency sensor, narrow band filter, ultrahigh-frequency signal amplifier, local oscillation signal generator sequentially connect, and are connected to control box finally by ultrahigh-frequency signal transmission coaxial-cable; In addition, superfrequency mixed frequency signal collecting unit is connected with frequency mixer, and the output terminal of frequency mixer is connected in narrow band filter.
3. distribution Intelligent switch cabinet monitoring system according to claim 1, it is characterized in that, the intelligent analysis system based on distributed real time on-line monitoring and remote control technology is provided with in control box, its according to setting communication protocol communicate with data acquisition unit, reception data or under send instructions; Show the information from data acquisition unit, comprise positional information, measurement data and affair alarm.
4. distribution Intelligent switch cabinet monitoring system according to claim 3, it is characterized in that, the described intelligent analysis system based on distributed real time on-line monitoring and remote control technology is provided with adjustable time window and an adjustable upper temperature limit threshold value of one from 1 minute to 160 minutes, mean value in 1 minute is got to the temperature data collected, compare with the threshold value of setting, in the time period set, continuous acquisition is to when exceeding the temperature of upper temperature limit threshold value, and system sends warning information.
5. distribution Intelligent switch cabinet monitoring system according to claim 3, it is characterized in that, the described intelligent analysis system based on distributed real time on-line monitoring and remote control technology is provided with adjustable time window and an adjustable discharge data upper limit threshold of one from 1 minute to 48 hours, after the average in the discharge data collected 1 minute, compare with the discharge data upper limit threshold of setting, set time period in continuous acquisition to discharge data exceed discharge data upper limit threshold time, system sends warning information.
6. distribution Intelligent switch cabinet monitoring system according to claim 1, it is characterized in that, wireless network between control box and main website data handling system takes the GPRS of China Mobile or the wireless network of China Telecom CDMA, data communication mode is carried out according to cabinet No., once communicated rack all the sensors data, communication takes response mode to transmit data, and packet carries time tag, mark acquisition time information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792103.6A CN104502759A (en) | 2014-12-19 | 2014-12-19 | Intelligent monitoring system of distribution network switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792103.6A CN104502759A (en) | 2014-12-19 | 2014-12-19 | Intelligent monitoring system of distribution network switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104502759A true CN104502759A (en) | 2015-04-08 |
Family
ID=52944170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792103.6A Pending CN104502759A (en) | 2014-12-19 | 2014-12-19 | Intelligent monitoring system of distribution network switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104502759A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105116879A (en) * | 2015-08-27 | 2015-12-02 | 株洲南车时代电气股份有限公司 | Electrical control cabinet remote test method for railway carriage |
| CN105158657A (en) * | 2015-08-26 | 2015-12-16 | 芜湖市凯鑫避雷器有限责任公司 | High-voltage switch cabinet partial discharge online monitoring system |
| CN105911445A (en) * | 2016-07-01 | 2016-08-31 | 河北箱变电器有限公司 | Partial discharge and temperature monitoring device for power system |
| CN106352917A (en) * | 2016-08-16 | 2017-01-25 | 国网天津市电力公司 | Integrated on-line monitoring and analyzing platform for switch cabinet |
| CN106556758A (en) * | 2016-11-03 | 2017-04-05 | 云南电网有限责任公司昭通供电局 | A kind of switch cubicle operational monitoring assessment system |
| CN107727962A (en) * | 2017-09-30 | 2018-02-23 | 深圳供电局有限公司 | A kind of high-tension switch cabinet temperature-rise test device, system and method |
| CN107796520A (en) * | 2016-08-30 | 2018-03-13 | 阿自倍尔株式会社 | Monitoring arrangement, monitoring method and non-volatile memory medium |
| CN107907235A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of substation capacitors automatic temperature measurement prior-warning device and method |
| CN108267670A (en) * | 2017-12-29 | 2018-07-10 | 国家电网公司 | A kind of Distribution Network Failure studies and judges early warning system and its implementation |
| CN109256859A (en) * | 2018-10-17 | 2019-01-22 | 国家电网有限公司 | A kind of power switch cabinet monitoring system |
| CN109307830A (en) * | 2018-12-28 | 2019-02-05 | 江苏峰工电气科技有限公司 | Superfrequency partial discharge of switchgear on-line monitoring system and its working method |
| CN109981366A (en) * | 2019-03-28 | 2019-07-05 | 苏州浪潮智能科技有限公司 | A kind of alarm method that server sensor readings is extremely fault-tolerant |
| CN110134676A (en) * | 2019-06-03 | 2019-08-16 | 西安电子科技大学 | A kind of monitoring method of sensing data quality |
| CN111126525A (en) * | 2019-12-13 | 2020-05-08 | 重庆宇来通信设备有限公司 | Data acquisition system based on RFID temperature measurement label |
| RU2730876C1 (en) * | 2019-12-09 | 2020-08-26 | Акционерное общество "Интер РАО - Электрогенерация" | Diagnostic method of technical condition of high-voltage equipment of open distribution devices |
| CN112673265A (en) * | 2018-09-10 | 2021-04-16 | 3M创新有限公司 | Method and system for monitoring health state of power cable accessory based on machine learning |
| CN113639784A (en) * | 2020-04-27 | 2021-11-12 | 安徽帕维尔智能技术有限公司 | Intelligent electric wire netting terminal monitoring devices |
| CN113884846A (en) * | 2021-12-07 | 2022-01-04 | 山东理工大学 | Partial discharge and temperature rise online monitoring system for switch cabinet |
| CN114200272A (en) * | 2022-02-17 | 2022-03-18 | 山东汇能电气有限公司 | Switch cabinet health state operation feedback system based on partial discharge detection |
| CN115356605A (en) * | 2022-10-19 | 2022-11-18 | 深圳市睿拓新科技有限公司 | Method for monitoring running state of power distribution switch control equipment |
| CN115980531A (en) * | 2023-03-16 | 2023-04-18 | 江苏大全长江电器股份有限公司 | GIS switch cabinet quality detection method and system under specific environment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586508U (en) * | 2012-05-22 | 2012-12-05 | 江苏省电力公司连云港供电公司 | Intelligent monitoring device of high voltage switch cabinet |
| CN102841296A (en) * | 2012-09-10 | 2012-12-26 | 江苏科技大学 | Online monitoring system and method for partial discharge of intelligent switch cabinet based on ultra-high frequency detection |
| CN103078404A (en) * | 2012-12-31 | 2013-05-01 | 广州供电局有限公司 | Intelligentized switch cabinet monitoring system and method |
| CN203310520U (en) * | 2013-04-28 | 2013-11-27 | 山东康威通信技术股份有限公司 | Electric power high and low voltage cable branch box and switch cabinet non-contact infrared temperature measurement system |
| CN103529351A (en) * | 2013-10-29 | 2014-01-22 | 李宏仁 | System and method for monitoring thermal defect of high-tension switch cabinet on line |
| CN203414562U (en) * | 2013-05-07 | 2014-01-29 | 湖南大学 | Integrated ultrahigh frequency detection and determination apparatus for partial discharge of GIS |
| CN203479966U (en) * | 2013-07-26 | 2014-03-12 | 广西电网公司电力科学研究院 | On-line monitoring comprehensive processing unit for partial discharge signals of high-voltage switchgear |
| CN203773009U (en) * | 2014-03-03 | 2014-08-13 | 国联思创（北京）科技有限公司 | High-voltage switch cabinet partial discharge on-line monitoring system |
| CN203911256U (en) * | 2014-06-06 | 2014-10-29 | 国家电网公司 | Dehumidification and flash explosion prevention control device for high-voltage switch cabinet |
-
2014
- 2014-12-19 CN CN201410792103.6A patent/CN104502759A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586508U (en) * | 2012-05-22 | 2012-12-05 | 江苏省电力公司连云港供电公司 | Intelligent monitoring device of high voltage switch cabinet |
| CN102841296A (en) * | 2012-09-10 | 2012-12-26 | 江苏科技大学 | Online monitoring system and method for partial discharge of intelligent switch cabinet based on ultra-high frequency detection |
| CN103078404A (en) * | 2012-12-31 | 2013-05-01 | 广州供电局有限公司 | Intelligentized switch cabinet monitoring system and method |
| CN203310520U (en) * | 2013-04-28 | 2013-11-27 | 山东康威通信技术股份有限公司 | Electric power high and low voltage cable branch box and switch cabinet non-contact infrared temperature measurement system |
| CN203414562U (en) * | 2013-05-07 | 2014-01-29 | 湖南大学 | Integrated ultrahigh frequency detection and determination apparatus for partial discharge of GIS |
| CN203479966U (en) * | 2013-07-26 | 2014-03-12 | 广西电网公司电力科学研究院 | On-line monitoring comprehensive processing unit for partial discharge signals of high-voltage switchgear |
| CN103529351A (en) * | 2013-10-29 | 2014-01-22 | 李宏仁 | System and method for monitoring thermal defect of high-tension switch cabinet on line |
| CN203773009U (en) * | 2014-03-03 | 2014-08-13 | 国联思创（北京）科技有限公司 | High-voltage switch cabinet partial discharge on-line monitoring system |
| CN203911256U (en) * | 2014-06-06 | 2014-10-29 | 国家电网公司 | Dehumidification and flash explosion prevention control device for high-voltage switch cabinet |
Non-Patent Citations (2)
| Title |
|---|
| 司文荣等: "局部放电超高频窄带信号监测技术", 《电工技术学报》 * |
| 王国利等: "变压器局部放电超高频检测中的混频技术研究", 《中国电机工程学报》 * |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158657A (en) * | 2015-08-26 | 2015-12-16 | 芜湖市凯鑫避雷器有限责任公司 | High-voltage switch cabinet partial discharge online monitoring system |
| CN105116879A (en) * | 2015-08-27 | 2015-12-02 | 株洲南车时代电气股份有限公司 | Electrical control cabinet remote test method for railway carriage |
| CN105911445A (en) * | 2016-07-01 | 2016-08-31 | 河北箱变电器有限公司 | Partial discharge and temperature monitoring device for power system |
| CN106352917A (en) * | 2016-08-16 | 2017-01-25 | 国网天津市电力公司 | Integrated on-line monitoring and analyzing platform for switch cabinet |
| CN107796520B (en) * | 2016-08-30 | 2019-08-30 | 阿自倍尔株式会社 | Monitoring arrangement, monitoring method and non-volatile memory medium |
| CN107796520A (en) * | 2016-08-30 | 2018-03-13 | 阿自倍尔株式会社 | Monitoring arrangement, monitoring method and non-volatile memory medium |
| CN106556758A (en) * | 2016-11-03 | 2017-04-05 | 云南电网有限责任公司昭通供电局 | A kind of switch cubicle operational monitoring assessment system |
| CN107907235B (en) * | 2017-07-14 | 2020-01-10 | 国网浙江省电力公司湖州供电公司 | Automatic temperature measurement early warning device and method for transformer substation capacitor |
| CN107907235A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of substation capacitors automatic temperature measurement prior-warning device and method |
| CN107727962A (en) * | 2017-09-30 | 2018-02-23 | 深圳供电局有限公司 | A kind of high-tension switch cabinet temperature-rise test device, system and method |
| CN108267670A (en) * | 2017-12-29 | 2018-07-10 | 国家电网公司 | A kind of Distribution Network Failure studies and judges early warning system and its implementation |
| CN108267670B (en) * | 2017-12-29 | 2020-02-04 | 国家电网公司 | Distribution network fault study and judgment early warning system and implementation method thereof |
| CN112673265A (en) * | 2018-09-10 | 2021-04-16 | 3M创新有限公司 | Method and system for monitoring health state of power cable accessory based on machine learning |
| CN109256859A (en) * | 2018-10-17 | 2019-01-22 | 国家电网有限公司 | A kind of power switch cabinet monitoring system |
| CN109307830A (en) * | 2018-12-28 | 2019-02-05 | 江苏峰工电气科技有限公司 | Superfrequency partial discharge of switchgear on-line monitoring system and its working method |
| CN109981366A (en) * | 2019-03-28 | 2019-07-05 | 苏州浪潮智能科技有限公司 | A kind of alarm method that server sensor readings is extremely fault-tolerant |
| CN110134676B (en) * | 2019-06-03 | 2021-01-29 | 西安电子科技大学 | Method for monitoring data quality of sensor |
| CN110134676A (en) * | 2019-06-03 | 2019-08-16 | 西安电子科技大学 | A kind of monitoring method of sensing data quality |
| RU2730876C1 (en) * | 2019-12-09 | 2020-08-26 | Акционерное общество "Интер РАО - Электрогенерация" | Diagnostic method of technical condition of high-voltage equipment of open distribution devices |
| CN111126525A (en) * | 2019-12-13 | 2020-05-08 | 重庆宇来通信设备有限公司 | Data acquisition system based on RFID temperature measurement label |
| CN113639784A (en) * | 2020-04-27 | 2021-11-12 | 安徽帕维尔智能技术有限公司 | Intelligent electric wire netting terminal monitoring devices |
| CN113884846A (en) * | 2021-12-07 | 2022-01-04 | 山东理工大学 | Partial discharge and temperature rise online monitoring system for switch cabinet |
| CN113884846B (en) * | 2021-12-07 | 2022-02-15 | 山东理工大学 | Partial discharge and temperature rise online monitoring system for switch cabinet |
| CN114200272A (en) * | 2022-02-17 | 2022-03-18 | 山东汇能电气有限公司 | Switch cabinet health state operation feedback system based on partial discharge detection |
| CN114200272B (en) * | 2022-02-17 | 2022-04-26 | 山东汇能电气有限公司 | Switch cabinet health state operation feedback system based on partial discharge detection |
| CN115356605A (en) * | 2022-10-19 | 2022-11-18 | 深圳市睿拓新科技有限公司 | Method for monitoring running state of power distribution switch control equipment |
| CN115356605B (en) * | 2022-10-19 | 2023-01-13 | 深圳市睿拓新科技有限公司 | Method for monitoring running state of power distribution switch control equipment |
| CN115980531A (en) * | 2023-03-16 | 2023-04-18 | 江苏大全长江电器股份有限公司 | GIS switch cabinet quality detection method and system under specific environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104502759A (en) | Intelligent monitoring system of distribution network switch cabinet | |
| CN104716741B (en) | Transformer station's remote supervision system and remote monitoring method thereof | |
| CN104990629B (en) | A kind of electrical equipment fault automatic early-warning system of infrared imaging temperature measuring | |
| CN103138400B (en) | A kind of touch man-machine interaction switch cubicle detects monitoring integration device | |
| CN104977087B (en) | A kind of method of the electrical equipment fault automatic early-warning based on infrared imaging temperature measuring | |
| CN105988063A (en) | Power transmission line fault hidden risk integrated on-line monitoring method and device | |
| CN211377246U (en) | High tension switchgear and cubical switchboard integrated state monitoring system | |
| CN204064509U (en) | A kind of temperature of high-tension switch cabinet on-line monitoring system | |
| CN207528355U (en) | A kind of switchgear passive and wireless high-voltage contact on-line temperature monitoring device | |
| CN109540328A (en) | Intelligent radio temp measuring system based on passive sensing technology | |
| CN105259443A (en) | Intelligent lightning-protection online real-time monitoring system | |
| CN203551139U (en) | Transformer station device contact temperature on-line monitoring device | |
| CN110165778A (en) | A kind of oil-immersed power transformer non-ionizing energy loss fault wave recording device and method | |
| CN105371967A (en) | Power cable joint temperature measuring device | |
| CN103557957A (en) | Device for online monitoring temperature of contact of substation equipment | |
| CN204405785U (en) | Partial discharge monitoring overall treatment unit in transformer oil | |
| CN105302087A (en) | Intelligent monitoring and managing system for distribution network medium-voltage switch devices | |
| CN110579693A (en) | High GIS partial discharge online monitoring device and method based on wireless transmission | |
| CN105116307B (en) | A kind of screening method of gas insulated combined electrical equipment status early warning data outliers | |
| CN104515623A (en) | Watch strap type passive wireless online temperature measuring device and monitoring system thereof | |
| CN205537749U (en) | Cubical switchboard arc light temperature measuring system | |
| CN205246133U (en) | A intelligent monitoring device for joining in marriage power -grid switch cabinet | |
| CN203984091U (en) | High-voltage switch gear infrared thermal imaging on-line monitoring integrated treatment unit | |
| CN203519062U (en) | Switch cabinet partial discharge intelligent on-line monitoring system | |
| CN203164360U (en) | Transformer device insulation online monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150408 |
|
| RJ01 | Rejection of invention patent application after publication |