CN204376537U - Cable branch box on-line operation monitoring system - Google Patents

Cable branch box on-line operation monitoring system Download PDF

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Publication number
CN204376537U
CN204376537U CN201520071987.6U CN201520071987U CN204376537U CN 204376537 U CN204376537 U CN 204376537U CN 201520071987 U CN201520071987 U CN 201520071987U CN 204376537 U CN204376537 U CN 204376537U
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China
Prior art keywords
module
branch box
temperature
cable
measurement
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Expired - Fee Related
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CN201520071987.6U
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Inventor
周封
郝婷
王晨光
王丙全
刘健
崔博闻
刘小可
孙卿
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Harbin University of Science and Technology
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Harbin University of Science and Technology
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Priority to CN201520071987.6U priority Critical patent/CN204376537U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/242Home appliances

Abstract

The utility model proposes a kind of cable branch box on-line operation monitoring system, comprise Measurement and analysis module, voltage acquisition module, current acquisition module, temperature collect module, communication module, display module, sound and light alarm module, corona flashover detection module, long-range portable terminal device, central network server etc.Electric current, voltage, the temperature of electric equipment in real-time measurement cable branch box, and even flashover situation, real-time calculation and analysis judges, notes abnormalities or after fault, carries out on the spot or distant early warning and warning.The related data of the normal service data of electric equipment and early warning and warning and information can not to be unpacked directly observation at scene, or are immediately obtained by portable terminal and control center Server remote.Achieve the real-time online automatic monitoring warning of cable branch box, check and make an inspection tour convenient, guarantee operations staff safety, effectively reduce the failure rate of equipment, improve useful life, ensure that power supply reliability, meanwhile, substantially increase operating efficiency, alleviate working strength.

Description

Cable branch box on-line operation monitoring system
Technical field
The utility model relates to the monitoring technology of cable branch box, and especially a kind of cable branch box on-line operation monitoring and pre-alarm system, belong to intelligent grid distribution technique field.
Background technology
In electric power system, the electrical cabinet body consumptions such as cable branch box, ring main unit, power distribution cabinet are very big, are generally that field or remote distributed are installed, check and make an inspection tour inconvenience; Break down and accident after, operations staff can not be known in time, and needs to investigate step by step and could, to the electrical cabinet body determining to break down, greatly be extended the time of fixing a breakdown.Therefore, a kind of device that can carry out automatic monitoring warning to electrical cabinet body is needed badly.
Electric equipment is in running, need to understand its ruuning situation in time, current cable branch box does not possess this function, and other electrical cabinet body has the external ammeter of employing cabinet, voltmeter etc., know that parameter is limited, and can not real-time data analysis, Realtime Alerts etc. be carried out.Especially for the operating temperature of electric equipment, generally do not detect.
Cable branch box is by the impact of installation environment, often be exposed to open air, especially in north cold area, southern humid area, its internal temperature, humidity change greatly, the normal operation of cable branch box is had a significant impact, but existing cable feeder pillar does not have temperature, the humidity control system of box house.
When the inspection carrying out electrical cabinet body is maked an inspection tour, general electrical cabinet body is all charging operation state, for ensure operations staff safely, increase work efficiency, need need not open cabinet and can watch the ruuning situation of equipment in electrical cabinet body; Or by the operation real-time monitored of remote mode to electric equipment.Therefore a kind of on-line operation monitoring system long-range or directly can carrying out equipment running status monitoring in electrical cabinet body is needed badly, can the heart or watch any cabinet inner case by portable terminal device in the controlling at any time, go wrong accurately location, process in time, to ensure power supply reliability, increase work efficiency, to ensure operations staff's safety.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and solves the problem that current electrical cabinet body lacks effective monitoring means.The utility model provides a kind of cable branch box on-line operation monitoring system, realize automatically monitoring the real-time online of electric equipment in cable branch box and reporting to the police, the ruuning situation of electric equipment can be understood without the need to opening cabinet during cabinet charging operation, check and make an inspection tour conveniently, ensure operations staff's safety, increase work efficiency; Gather the various operational factor of electric equipment, and carry out real-time data analysis, fault is synchronously reported to the police; Automatic regulator cubicle temperature and humidity, improve running environment, improves service life of equipment, reduces failure rate; In cabinet, situation can the heart or checked by portable terminal in the controlling at any time, and go wrong accurately location, processes in time, greatly ensured power supply reliability.
The utility model in order to solve the problem adopt technical scheme be:
Described system comprises Measurement and analysis module (1), voltage acquisition module (2), current acquisition module (3), temperature collect module (4), communication module (5), power module (6), display module (7), sound and light alarm module (8), control panel (9).
Voltage acquisition module (2) gathers inlet wire cable (10) voltage, current acquisition module (3) gathers the electric current of each branch outlet cable (11) respectively, temperature collect module (4) gathers the temperature of cable joint (12), and the signal collected gives Measurement and analysis module (1) analyzing and processing.The inlet wire cable (10) of cable branch box is one group, and non-equilibrium among three phase voltages is very little, and the contact resistance of general cable joint (12) is also very little, therefore only need measure inlet wire cable (10) voltage; Outlet cable (11) may be many groups, and electric current is different, and therefore the electric current of each branch outlet cable (11) all will be measured.There is contact resistance in cable joint (12), can generate heat, therefore also need the temperature measuring each cable joint (12) when electric current flows through.
The real-time running data recorded and the service data calculated send display module (7) to show in real time by Measurement and analysis module (1).The real-time running data recorded refers to electric current, voltage, temperature data, the service data calculated be then by the real-time running data recorded calculate as electricity, apparent power, active power, reactive power, power factor, frequency and harmonic wave etc., all that operations staff understands electric equipment and the data required for circuit ruuning situation, after sending display module (7), operations staff can open cabinet and can check at any time.
In order to automatically find abnormal conditions and the fault of electric equipment, Measurement and analysis module (1) is to the real-time running data recorded and the service data calculated, carry out computational analysis judgement simultaneously, adopt and contrast with normal historical data or compare with prescribed limits or carry out the methods such as fault signature pattern recognition, after finding electrical quantity or temperature anomaly, carry out early warning, after finding fault, report to the police, remind operations staff to process in time, reduce the failure rate of electric equipment, improve the useful life of power supply reliability and equipment.
The power module (6) of described system comprises CT and gets energy coil (601), rectification module (602), Voltage stabilizing module (603), storage battery (604), and CT gets inlet wire cable (10) side that energy coil (601) is arranged on cable branch box.Cable branch box is generally 6KV, 10KV and above voltage, distinguishes very large, directly for native system is powered, can not need special power module (6) with common low-pressure electric cabinet, therefore adopts CT to get energy coil (601) way to take power; Storage battery (604) also can ensure system works when cable line power-off, and when inlet wire cable (10) has electricity, takes floating charge mode.
The control panel (9) of described system comprises button (901) and data-interface (902), and button (901) is connected with Measurement and analysis module (1), and data-interface (902) is connected with Measurement and analysis module (1), other external equipment external.Operations staff to operate system by button (901) and controls, and as carried out optimum configurations, data watch; Data-interface (902) can be the interfaces such as RS232, USB, various measured data or historical data is sent on the external equipment such as computer or USB flash disk.
In order to strengthen function further, described system also comprises corona flashover detection module (13), comprises local discharge sensor (1301) and sampling analysis unit (1302); Local discharge sensor (1302) is arranged on each cable of cable branch box, the data detected are sent to sampling analysis module (1302), when sampling analysis module (1302) analysis judges corona or flashover occur, result is sent to Measurement and analysis module (1), the number of times of record cable generation corona flashover and size of current, and report to the police.Local discharge sensor (1301) can adopt Luo-coil, and when utilizing cable generation corona flashover, electric current changes suddenly the electromagnetic field variation characteristic brought and monitors, and realizes the non-contact measurement to cable flashover.There is corona or flashover, easily cause insulation to be deteriorated, become serious potential faults, therefore need to report to the police; The number of times of cable generation corona flashover and size of current, then for evaluating insulation property, the failure judgement hidden danger order of severity.
For the situation that cable branch box operational environment is more severe, as larger in the northern temperature difference, southern humid environment etc., described system also comprises Temperature and Humidity Control module (16), comprises temperature collection module (1601), collecting ambient humidity module (1602), fan (1603), electrothermal module (1604); Temperature collection module (1601) detection system operating ambient temperature, if higher than the most high ambient temperature of setting, start fan (1603) heat radiation, if lower than the minimum ambient temperature of setting, start electrothermal module (1604) heating; Collecting ambient humidity module (1602) detection system operational environment humidity, if higher than the highest ambient humidity set, starts fan (1603) and electrothermal module (1604) dehumidifying.Thus make in cable branch box, especially the operational environment of monitoring system is well improved, and reduces the failure rate of equipment, improves the useful life of equipment and native system.
In addition, ambient temperature and humidity take described utilize fan (1603) and electrothermal module (1604) to carry out the measure of regulable control after, if still do not reach ambient temperature and the humid control effect of setting, then report to the police, remind operations staff's inspection, process.
In order to increase work efficiency, exception and fault are processed in time, described system also comprises portable terminal (14), comprise button (1401), liquid crystal display (1402), terminal called module (1403), portable terminal (14) is by terminal called module (1403) and Measurement and analysis module (1) swap data.Portable terminal (14) can be used as supplementing or alternative display module (7) and control panel (9), or as the alert receipt device of operation maintenance personnel.Portable terminal (14) can be customization, also can utilize smart mobile phone, and the corresponding software installing customization realizes; And portable terminal (14) is carried with by operations staff, can onsite application, also can long-rangely use.
In addition, described system also comprises control center server (15), and Measurement and analysis module (1) is through communication module (5) and control center server (15) swap data.Control center server (15) can Long-distance Control, long-range inspection, remote alarms, save historical data etc.And can with portable terminal (14) swap data, issue work order etc., substantially increase the intelligence degree of described system.
In described system, described analysis judges to find temperature anomaly, refer to that Measurement and analysis module (1) judges that temperature level that temperature collect module (4) records exceedes the temperature alarming threshold value of setting, or the historical variations trend of analysis temperature, and total current current acquisition module (3) recorded is eliminated after load current variable effect as load modifying factor, judge that temperature is in the situation continuing to rise or in the short time, the rate of climb is very fast in official hour.Here be not limited to traditional mistake limit type of alarm, because the normal increase of electric current also can cause the rising of temperature, the accuracy of judgement may be affected, therefore, need after elimination load current variable effect, then analyze the trend judging variations in temperature; At this moment, if it is very fast that temperature still continues the rate of climb in rising or short time, all illustrate that the contact resistance of cable joint (12) becomes large than normal value, cause the generation of hot stall possibly, operations staff is reminded to overhaul in time after sending early warning, just find after avoiding fault, thus effectively ensure that the reliability of power supply, the useful life of raising equipment.
In described system, described warning and early warning, to report to the police for Measurement and analysis module (1) and early warning related data and direct information display module (7) display, simultaneously be sent to portable terminal (14) through communication module (5) or control center server (15) carries out remote alarms, and driving sound and light alarm module (8) to report to the police on the spot simultaneously.Operations staff at the scene time, can be known by sound and light alarm module (8) in time and occur abnormal, and to be watched by display module (7); Operations staff not at the scene time, also can be known in time by portable terminal (14) or control center server (15) and exception or fault and relevant information thereof occur, rush for in-situ processing.
Compared with prior art, the utility model tool has the following advantages:
1) to the operation real time on-line monitoring of electric equipment in cable branch box, the ruuning situation of electric equipment during charging operation, can be understood without the need to opening cabinet, checking and making an inspection tour conveniently, ensureing operations staff's safety, increase work efficiency.
2) carry out the real-time analysis of electric equipment operation data, to electrical quantity and temperature anomaly and fault real-time early warning and warning, effectively ensure that the reliability of power supply, improve the useful life of equipment.
3) automatic regulator cubicle temperature and humidity, effectively reduces the failure rate of equipment, improves the useful life of equipment.
4) various ways of on-the-spot display module, portable terminal and control center server is adopted to combine, no matter at the scene whether operations staff, electric equipment generation exception and relevant information can be known in time, improve operating efficiency, greatly alleviate operations staff's working strength.And in cabinet, situation can the heart or checked by portable terminal in the controlling at any time, and go wrong accurately location, processes in time, greatly ensured power supply reliability and power supply quality.
5) in electric power system, except cable branch box, the regulator cubicle such as ring main unit, enclosures also all has similar feature and demand, and difference is that the electric equipment of electrical cabinet body inside may be different, but the parameter of main monitoring is substantially identical, and therefore native system has applicability widely.
Accompanying drawing explanation
Fig. 1 is cable branch box built-in system schematic diagram.
Fig. 2 is cable branch box external system schematic diagram; Fig. 3 is portable terminal schematic diagram; Fig. 4 is control center server schematic diagram.
In figure: 1-Measurement and analysis module, 2-voltage acquisition module, 3-current acquisition module, 4-temperature collect module, 5-communication module, 6-power module, 7-display module, 8-sound and light alarm module, 9-control panel, 901-button, 902-data-interface, 10-inlet wire cable, 11-outlet cable, 12-cable joint, 13-corona flashover detection module, 1301-local discharge sensor, 1302-sampling analysis module, the long-range portable terminal device of 14-, 1401-button, 1402-liquid crystal display, 1403-terminal called module, 15-central network server, 16-Temperature and Humidity Control module, 1601-temperature collection module, 1602-collecting ambient humidity module, 1603-fan, 1604-electrothermal module, 17-case lid, 18-casing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
For ease of the formation of descriptive system, represent cable branch box inner case, Fig. 1 adopts cable branch box profile to represent, and owing to limitting at visual angle, only marks the situation of cable one phase; Fig. 2 is cable branch box external circumstances.
The Measurement and analysis module (1) of described system, voltage acquisition module (2), current acquisition module (3), temperature collect module (4), communication module (5), power module (6), corona flashover detection module (13), Temperature and Humidity Control module (16) are all installed in cable branch box, as shown in Figure 1.
Display module (7) and the control panel (9) of described system are installed on outside cable branch box, because case lid (17) is movable, is therefore fixed on the outer surface of casing (18), and takes dust-proof, waterproof measure, be convenient to operations staff and observe service data at any time, as shown in Figure 2.
The sound and light alarm module (8) of described system is installed on outside cable branch box, is fixed on the top of casing (18), is convenient to operations staff and can perceives the alarm sound and light that send a long way off, as shown in Figure 1 and Figure 2.
In Fig. 1, voltage acquisition module (2) gathers the voltage of inlet wire cable (10), current acquisition module (3) gathers the electric current of each branch outlet cable (11) respectively, temperature collect module (4) gathers the temperature of cable joint (12), and the signal collected gives Measurement and analysis module (1) analyzing and processing.
In Fig. 1, power module (6) comprises CT and gets energy coil (601), rectification module (602), Voltage stabilizing module (603), storage battery (604), and CT gets inlet wire cable (10) side that energy coil (601) is arranged on cable branch box.
In Fig. 1, corona flashover detection module (13), comprises local discharge sensor (1301) and sampling analysis unit (1302); Local discharge sensor (1302) is arranged on each cable of cable branch box, the data detected are sent to sampling analysis module (1302), when sampling analysis module (1302) analysis judges corona or flashover occur, result is sent to Measurement and analysis module (1), the number of times of record cable generation corona flashover and size of current, and report to the police.
In Fig. 1, Temperature and Humidity Control module (16), comprises temperature collection module (1601), collecting ambient humidity module (1602), fan (1603), electrothermal module (1604); Temperature collection module (1601) detection system operating ambient temperature, give Measurement and analysis module (1) to judge, if higher than the most high ambient temperature of setting, Measurement and analysis module (1) starts fan (1603) heat radiation, if lower than the minimum ambient temperature of setting, Measurement and analysis module (1) starts electrothermal module (1604) heating; Collecting ambient humidity module (1602) detection system operational environment humidity, gives Measurement and analysis module (1) and judges, if higher than the highest ambient humidity set, Measurement and analysis module (1) starts fan (1603) and electrothermal module (1604) dehumidifying; System context temperature and humidity take described utilize fan (1603) and electrothermal module (1604) to carry out the measure of regulable control after, if still do not reach ambient temperature and the humid control effect of setting, then report to the police.
Fig. 3 is portable terminal (14), comprises button (1401), liquid crystal display (1402), terminal called module (1403), and portable terminal (14) is by terminal called module (1403) and Measurement and analysis module (1) swap data in Fig. 1.
Fig. 4 is control center server (15), and the Measurement and analysis module (1) in Fig. 1 is through communication module (5) and control center server (15) swap data.
In Fig. 1, Fig. 2, the real-time running data recorded and the service data calculated send display module (7) to show in real time by Measurement and analysis module (1), and computational analysis simultaneously judges, after finding electrical quantity or temperature anomaly, carry out early warning, after finding fault, report to the police.
Described analysis judges to find temperature anomaly, for Measurement and analysis module (1) judges that temperature level that temperature collect module (4) records exceedes the temperature alarming threshold value of setting, or the historical variations trend of analysis temperature, and total current current acquisition module (3) recorded is eliminated after load current variable effect as load modifying factor, judge that temperature is in the situation continuing to rise or in the short time, the rate of climb is very fast in official hour.
Described early warning or warning, for Measurement and analysis module (1) by early warning or alarm-related data and direct information display module (7) display, be sent to portable terminal (14) through communication module (5) or control center server (15) carries out distant early warning or warning, drive sound and light alarm module (8) to carry out early warning on the spot or warning simultaneously.
In Fig. 2, control panel (9) comprises button (901) and data-interface (902), and button (901) is connected with Measurement and analysis module (1), carries out optimum configurations, data watch, data-interface (902) is connected with Measurement and analysis module (1), other external equipment external.
The foregoing is only better embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.

Claims (8)

1. cable branch box on-line operation monitoring system, is characterized in that: system comprises Measurement and analysis module (1), voltage acquisition module (2), current acquisition module (3), temperature collect module (4), communication module (5), power module (6), display module (7), sound and light alarm module (8), control panel (9);
Voltage acquisition module (2) gathers the voltage of inlet wire cable (10), current acquisition module (3) gathers the electric current of each branch outlet cable (11) respectively, temperature collect module (4) gathers the temperature of cable joint (12), and the signal collected gives Measurement and analysis module (1) analyzing and processing;
The real-time running data recorded and the service data calculated send display module (7) to show in real time by Measurement and analysis module (1), and computational analysis simultaneously judges, after finding electrical quantity or temperature anomaly, carry out early warning, after finding fault, report to the police.
2. cable branch box on-line operation monitoring system according to claim 1, it is characterized in that: power module (6) comprises CT and gets energy coil (601), rectification module (602), Voltage stabilizing module (603), storage battery (604), CT gets inlet wire cable (10) side that energy coil (601) is arranged on cable branch box.
3. cable branch box on-line operation monitoring system according to claim 1, it is characterized in that: control panel (9) comprises button (901) and data-interface (902), button (901) is connected with Measurement and analysis module (1), and data-interface (902) is connected with Measurement and analysis module (1).
4. cable branch box on-line operation monitoring system according to claim 1, is characterized in that: system comprises corona flashover detection module (13), comprises local discharge sensor (1301) and sampling analysis unit (1302); Local discharge sensor (1302) is arranged on each cable of cable branch box, the data detected are sent to sampling analysis module (1302), when sampling analysis module (1302) analysis judges corona or flashover occur, result is sent to Measurement and analysis module (1), the number of times of record cable generation corona flashover and size of current, and report to the police.
5. cable branch box on-line operation monitoring system according to claim 1, it is characterized in that: system comprises Temperature and Humidity Control module (16), comprise temperature collection module (1601), collecting ambient humidity module (1602), fan (1603), electrothermal module (1604);
Temperature collection module (1601) detection system operating ambient temperature, if higher than the most high ambient temperature of setting, start fan (1603) heat radiation, if lower than the minimum ambient temperature of setting, start electrothermal module (1604) heating;
Collecting ambient humidity module (1602) detection system operational environment humidity, if higher than the highest ambient humidity set, starts fan (1603) and electrothermal module (1604) dehumidifying;
System context temperature and humidity take described utilize fan (1603) and electrothermal module (1604) to carry out the measure of regulable control after, if still do not reach ambient temperature and the humid control effect of setting, then report to the police.
6. cable branch box on-line operation monitoring system according to claim 1, it is characterized in that: system comprises portable terminal (14), comprise button (1401), liquid crystal display (1402), terminal called module (1403), portable terminal (14) is by terminal called module (1403) and Measurement and analysis module (1) swap data.
7. cable branch box on-line operation monitoring system according to claim 1, it is characterized in that: system comprises control center server (15), Measurement and analysis module (1) is through communication module (5) and control center server (15) swap data.
8. cable branch box on-line operation monitoring system according to claim 1, it is characterized in that: described early warning or warning, for Measurement and analysis module (1) by early warning or alarm-related data and direct information display module (7) display, be sent to portable terminal (14) through communication module (5) or control center server (15) carries out distant early warning or warning, drive sound and light alarm module (8) to carry out early warning on the spot or warning simultaneously.
CN201520071987.6U 2015-02-02 2015-02-02 Cable branch box on-line operation monitoring system Expired - Fee Related CN204376537U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520071987.6U CN204376537U (en) 2015-02-02 2015-02-02 Cable branch box on-line operation monitoring system

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Application Number Priority Date Filing Date Title
CN201520071987.6U CN204376537U (en) 2015-02-02 2015-02-02 Cable branch box on-line operation monitoring system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107479599A (en) * 2017-08-25 2017-12-15 国家电网公司 Cable duct water discharge control method and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107479599A (en) * 2017-08-25 2017-12-15 国家电网公司 Cable duct water discharge control method and system

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