CN103676888B - System and method for monitoring ring main unit cable joint temperature - Google Patents
System and method for monitoring ring main unit cable joint temperature Download PDFInfo
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- CN103676888B CN103676888B CN201310695855.6A CN201310695855A CN103676888B CN 103676888 B CN103676888 B CN 103676888B CN 201310695855 A CN201310695855 A CN 201310695855A CN 103676888 B CN103676888 B CN 103676888B
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Abstract
The invention discloses a kind of system and method for monitoring ring main unit cable joint temperature, including ring main unit, the ring main unit includes cable vault, switch gear room, secondary cabling room, PT cabinets room, distribution automation room, ring main unit distribution terminal, monitoring temperature terminal, temperature sensor.During monitoring temperature, by environment temperature and ring main unit inner cable connector temperature and sending the digital signal processor in monitoring temperature terminal in measurement ring main unit in real time respectively, to data by certain compensation, verification, the actual temperature rise rate of cable connector is drawn, is compared with the actual temperature rise rate threshold values of cable connector for setting before.When the actual temperature rise rate of cable connector exceeds threshold values, digital signal controller produces alarm signal, and alarm module is started alarm, data above and state are all sent to long-range main website simultaneously, allow that the staff of long-range main website, to the dangerous accident fast reaction such as caught fire in ring main unit, reduces loss.
Description
Technical field
The present invention relates to a kind of monitoring system and method, more particularly to a kind of temperature of cable junction monitoring system and method.
Background technology
With the economic sustained and rapid development of Chinese society and the continuous improvement of living standards of the people, power consumer can to power supply
Requirement higher is proposed by property, the quality of power supply and Supply Security.It is rapid that nowadays the country widelys popularize intelligent distribution network
Development, ring main unit can greatly improve the power supply reliability of power distribution network, economy as the main electric power equipment of intelligent distribution network,
And labour intensity is reduced, and raise the management level and service quality, promote the development of intelligent distribution network.Power cable has prolonged resistance to
With, take up an area less, can lay in all cases the advantages of, be used widely in power system power transmission and distribution.However, ring main unit
Its inside cable joint is easy to heating due to a variety of causes, and the degree of heat will influence ring main unit self-operating or even whole electricity
The operation safety of net, temperature of cable junction is too high to occur severe oxidation, and cable service life die-offs, and causes cable connector quick-fried
Fried, insulation breakdown, burning etc., cause massive blackout and fire incident.
How effective real time and on line monitoring preferably to be carried out to ring main unit inner cable joint, to ensure the electric power such as ring main unit
The safe and reliable operation of equipment, as the problem that everybody competitively studies.In order to realize to ring main unit inner cable joint it is real-time
Line is monitored and early warning, it is necessary to which increase temperature sensor in ring main unit carries out real time temperature monitoring to cable connector.The country is such as
The method that the present carries out temperature monitoring to cable connector is a lot, mainly has the outer infrared imaging method of stickup thermometric wax disk(-sc) method, cabinet, cabinet outer red
IR thermometry etc. in outer thermometry, contact-sensing thermometry, optical fiber Surface Mount thermometry, cabinet.However, these methods are pin
Absolute temperature to cable connector carries out real time and on line monitoring, and cable is judged indirectly by the cable connector absolute temperature for measuring
The degree of aging of joint, insulation breakdown degree, current capacity size and imminent potential safety hazard etc..If the cable for measuring
Joint kelvin rating exceedes design temperature high alarm setting value and produces alarm signal, and this determination methods are in itself unreliable
, some false alarms can be brought and problem of not alarming.
For example, environment temperature residing in ring main unit is 50 DEG C, and the temperature of cable junction higher limit for setting is 70 DEG C, because
Heating is produced to be easy to so that the temperature of cable connector reaches 70 DEG C and produces alarm to there is certain load current in cable,
Now, current value is much not up to the higher limit of setting electric current, and it can be continuation normal reliable that cable does not occur insulation breakdown
Operation.
Again for example, the temperature of ring main unit cable connector occurs cataclysm, in the short time（5~10 seconds）60 are risen to by 20 DEG C
DEG C, and environment temperature is varied widely, these temperature are all the time without producing alarm in the range of alarm temperature.And it is actual
Situation is that cable connector is likely to have occurred that ground connection or short trouble caused by insulation breakdown.Produce these false alarms or not
The reason for alarm is not consider two important influence amounts：One is the environment temperature residing for cable connector；Two is cable connector sheet
The climbing speed of body and environment temperature.Thus, the criterion to the judgement of cable connector reliability, monitoring and early warning will be weighed in all directions
Two influences of correlative, reliably could carry out real time and on line monitoring to cable connector.
The content of the invention
It is an object of the invention to provide the temperature monitoring system and method for a kind of ring main unit inner cable joint.
A kind of ring main unit temperature of cable junction monitoring system of the present invention, including temperature of cable junction monitor terminal, temperature are passed
Sensor, signal transmssion line, adding thermal resistance, cooling fan etc..
The monitoring temperature terminal includes data acquisition module, data processing module, alarm module, communication module, display
Module and definite value setting module.
The temperature sensor passes through the data acquisition module and data processing module phase of transmission line and monitoring temperature terminal
Even, the communication module of the monitoring temperature terminal with long-range main website system is communicated by fieldbus or by wireless network, institute
Data processing module is stated to be connected by fieldbus with alarm module.
The temperature sensor includes the first temperature sensor and second temperature sensor, and first temperature sensor is surveyed
Environment absolute temperature around amount cable connector, the second temperature sensor direct measurement cable connector absolute temperature.
The data acquisition module and data processing module can be arranged in digital signal controller, the definite value setting
Module is definite value encoder, and it is connected with the respective pin of digital signal controller.
The communication module includes local scene bus communicating devices and wireless network communication apparatus, and the local scene is total
Line communicator can be RS485/232 communicators, and the wireless network communication apparatus can be wireless network transmitter.
The monitoring temperature terminal also includes High-Speed Coupled Device, and the High-Speed Coupled Device is arranged on data processing module
Between the communication module, it is arranged between the data processing module and the alarm module and display module, also sets up
Between data processing module and ring main unit circuit controling switch.
The alarm module is alarm, and the display module is display lamp or display screen.
A kind of ring main unit temperature of cable junction monitoring system of the present invention is arranged on inside ring main unit, and the ring main unit includes electricity
Cable room, switch gear room, secondary cabling room, PT cabinets room, power distribution automation room, ring main unit distribution terminal, cable etc..
The ring main unit distribution terminal and monitoring temperature terminal are arranged in power distribution automation room, first TEMP
Device is arranged in cable vault, and the second temperature sensor is arranged on the position corresponding with cable connector.
The data processing module is connected with the switch of ring main unit distribution terminal.
Temperature of cable junction prison is carried out according to above-mentioned ring main unit temperature of cable junction monitoring system the invention discloses one kind
The method of control, its step is：
Enter trip temperature to the absolute temperature of ring main unit inner cable joint by infrared temperature-test sensor in ring main unit to exist in real time
Line is monitored, and the value that will be measured sends the digital signal controller of monitoring temperature terminal to；
Real-time online prison is carried out to the environment absolute temperature in ring main unit by the temperature sensor being installed in ring main unit
Survey, and the value that will be measured sends the digital signal controller of monitoring temperature terminal to；
Monitoring temperature terminal obtains two temperature of cable connector absolute temperature and environment absolute temperature of synchronization, carries out
Temperature compares, and obtains the relative temperature of cable connector；
The absolute temperature of monitoring temperature terminal-pair inner cable joint for a period of time is compared, calculates, analyzes, and draws electricity
The absolute temperature rise rate of cable joint, is compared to the absolute temperature in the same time period of environment temperature, calculates, analyzes, and obtains
Go out the absolute temperature rise rate of environment；
The relative temperature of a period of time inner cable joint is compared meter by the digital signal controller of monitoring temperature terminal
Calculate, draw the relative temperature rise rate v1 of cable connector；
The digital signal controller of monitoring temperature terminal is exhausted by the absolute temperature rise rate of the environment of synchronization and cable connector
Calculating is compared to temperature rise rate, draws cable connector with respect to temperature rise rate v2；
The cable connector that the digital signal controller will be calculated is with respect to temperature rise rate v1 and relative temperature rise rate v2
Compensate, verify, obtain actual cable with respect to temperature rise rate v0；
According to cable connector relative temperature and relative temperature rise rate v0, relative temperature and temperature rise are set on definite value encoder
Speed threshold values, and send digital signal controller to.Set by exceeding as cable connector relative temperature or relative temperature rise rate v0
The upper limit threshold values when, produce alarm signal, alarm lamp or emergency alarm bell are sent to by digital signal controller, and produce fan control
Signal, is lowered the temperature to cable cabinet.
When cable connector relative temperature or relative temperature rise rate v0 exceed maximum threshold values, digital signal controller to
Ring main unit sends divide-shut brake order, powers off ring main unit, to ensure equipment safety.
Each data and instruction above, all sends communication module to, then transmitted by communication module by digital signal controller
To long-range main website, equipment is monitored by main website, control instruction is assigned if necessary.
The control instruction is sent to communication module by main website, and communication module transmits commands to Digital Signals again
Device, is controlled by it to distribution terminal relevant device.
The present invention is taken to temperature of cable junction monitoring, environment temperature monitoring and cable connector and environment in ring main unit
The intelligent temperature monitoring method that relative temperature and relative temperature climbing speed are combined, proposes that ring main unit inner cable joint is relatively warm
The concept of degree and relative temperature rise rate, has invented a kind of new ring main unit temperature of cable junction monitor terminal.
Rational prejudgementing criteria analysis are carried out by the relative temperature value to cable connector, relative temperature rise rate value, can be to ring
Net cabinet temperature of cable junction state carries out real-time more structurally sound on-line monitoring and early warning, while can be controlled to drop according to temperature conditions
Warm air is fanned or adding thermal resistance, or even takes carry out divide-shut brake control to ring main unit if necessary, to ensure safety and the power supply of equipment
Reliability.
Brief description of the drawings
Fig. 1 is monitoring temperature terminating mount structure schematic diagram of the invention；
Fig. 2 is system integrated stand composition of the invention；
Fig. 3 is hardware principle block diagram of the invention；
Fig. 4 is the flow chart of data processing figure of monitoring method of the present invention.
Specific embodiment
Specific embodiment of the invention is described in detail below in conjunction with the accompanying drawings：
Fig. 1 is the monitoring temperature terminating mount structure schematic diagram of the embodiment of the present invention, and monitoring temperature terminal is arranged on a ring
In net cabinet, ring main unit is a cabinet, and cabinet includes cable vault 1, switch gear room 2, secondary cabling room 3, PT power cabinets 4, distribution certainly
Dynamicization room 5.Distribution terminal 6 and monitoring temperature terminal 7 are provided with power distribution automation room 5.Cable vault is located at ring main unit bottom, has
Multiple, there is cable connector 8 and sensor inside it.
Ring main unit body：Ring main unit takes the common box type structure of breaker, lower load cell, is equipped with the sealing of all insulation
Stainless steel casing, built-in SF gases can bear the adverse circumstances of moist, sandy many dirt.
Switch gear room 2：There is multiple, positioned at cable vault top, be provided with the switchgear of ring main unit.
Secondary cabling room 3：Positioned at ring main unit top, switch gear room top, the secondary rack of ring main unit and sensor and temperature
The cabling of monitor terminal is connected up by secondary cabling room 3.
PT power cabinets 4：The part of the secondary power supply of ring main unit has been separately configured a PT cabinet, and PT cabinets can take duplex feeding
Mode, can obtain power supply from two-way inlet wire, and with back-up source, to ensure that ring main unit can be continual to monitoring temperature
Terminal and ring main unit distribution terminal provide reliable power supply.
Power distribution automation room 5：The distribution terminal 6 of monitoring temperature terminal 7 and ring main unit is provided with power distribution automation room, also
Including communication module, for being communicated with substation or main website.
Distribution terminal 6：For being powered for monitoring temperature terminal.
Monitoring temperature terminal 7：Data acquisition module, data processing module, alarm module, communication module, display module and
Definite value setting module, not shown in figure.
First temperature sensor 9：It is the infrared temperature-test sensor being installed in the cable vault of high-pressure side, is kept with cable connector
Appropriately distance, measures the kelvin rating of cable connector 8.Being popped one's head in 10kV and 35kV ring main units should with a distance from cable connector
More than 40mm is maintained at, therefore the distance coefficient of infrared temperature probe should be 10 than minimum:1, can be using the infrared survey of TN9 series
Temperature sensor, temperature-measuring range is -30 DEG C~+275 DEG C, and precision is 0.1 DEG C.
Second temperature temperature sensor 10：It is installed in the cable vault of high-pressure side, for measuring electricity apart from cable connector farther out
Absolute environment temperature in cable room, and the value that will be measured sends monitoring temperature terminal to.Can be using the SHT10 TEMPs of series
Device, measurement temperature scope is -45 DEG C~275 DEG C, and precision is 0.1 DEG C.
First temperature sensors 9 and second temperature sensor 10 are by transmission line and the data of monitoring temperature terminal 7
Acquisition module is connected with data processing module, and the communication module of monitoring temperature terminal 7 is by fieldbus or by wireless network
Communicated with long-range main website, the data processing module is connected with alarm module by fieldbus.
Fig. 2 is the system integrated stand composition of the embodiment of the present invention, and multiple ring main units pass through communication network and master station communication.Often
In individual ring main unit, temperature of cable junction monitoring sensor and environment temperature monitoring sensor send measured data to temperature prison
Control terminal, monitoring temperature terminal sends data to main website by communication network, when data exceed limit value, alarms and temperature
Control module is acted.
Fig. 3 is the hardware principle block diagram of the embodiment of the present invention.
The first temperature sensor and second temperature sensor in ring main unit cable vault 1 measure cable vault's environment temperature respectively
And temperature of cable junction, the two is connected with the digital signal controller of monitoring temperature terminal；Definite value in monitoring temperature terminal 7
Encoder is connected with digital signal controller；Communication module, alarm module, display module are connected to photo-coupler, optocoupler
The other end of clutch is connected to digital signal controller；Switch of the digital signal controller also with ring main unit distribution terminal is connected,
And photo-coupler is in series with therebetween.
First temperature sensor is respectively cable connector temperature transducer, environment temperature sensing with second temperature sensor
Device, the value that the two is measured sends digital signal controller to as analog signalses, and definite value encoder input value is by distribution terminal
Digital signal controller measure, and as input quantity, for digital signal controller as criterion.Communication module is total by scene
Wire protocol is connected with digital signal controller, meanwhile, carried out in real time with backstage main station system by fieldbus or wireless network
Communication.The control signal of digital signal controller output acts on killer switch, fan or the adding thermal resistance of ring main unit, respectively
For making ring main unit carry out breaking-closing operating, cooling treatment or hyperthermic treatment.The controlling alarm of digital signal controller, state show
Show that control signal is respectively acting on alarm and data display unit.Wherein, digital signal controller and alarm module, ring main unit
It is connected by photo-coupler respectively between switch and communication module, to ensure that data are accurate.The alarm that alarm module is used
Buzzing alarm, sound and light alarm are may include, data disaply moudle is including LED state indicator lamp, LCD liquid crystal display screen etc..
Fig. 4 is the flow chart of data processing figure of monitoring method of the present invention.
After temperature sensor in ring main unit cable vault measures the absolute temperature and environment absolute temperature of cable connector, carry out
Denoising, is displayed on the display screen of monitoring temperature terminal；Digital signal controller is by data after treatment by certain calculation
Method calculates cable connector relative temperature value, the absolute temperature rise rate of cable connector and the absolute temperature rise rate of environment, and is displayed in aobvious
In display screen；Three new datas are contrasted, calculated by digital signal controller, are drawn cable connector with respect to temperature rise rate and are displayed in aobvious
In display screen；Above-mentioned signal has drawn closest value of the cable connector with respect to temperature rise rate by compensation, verification, same to send extremely
Display screen；Digital signal controller is by gained closest to cable connector with respect to temperature rise rate value and cable connector relative temperature value
It is compared with setting threshold values, and alarm signal is sent according to comparative result, is again shown in the display screen of monitoring temperature terminal
On.
In practical application, the digital signal controller of distribution terminal uses the DSC chips of model STM32f407VG；Core
The internal resource of piece is a lot, and memory capacity is big, cheap, while ARM chips have wireless communication interface, ethernet communication to connect
Mouthful, PWM ripples can be also produced, can quickly process and export analog quantity, digital quantity, control signal, alarm signal etc..Control is believed
Number, alarm signal output increase TLP112 light-coupled isolations, it is ensured that the stability and anti-interference of output signal.Take grand electricity
The communication module of H7710 series, monitor terminal be able to can be passed through again by GPRS communication modes and the swapping data of main website
Alarm signal is sent to user mobile phone by gsm communication mode.There is the local communications of RS232/RS485 and maintenance interface simultaneously.
Embodiment above is only that the preferred embodiment of the present invention is described, and not the scope of the present invention is entered
Row is limited, and on the premise of design spirit of the present invention is not departed from, this area ordinary skill technical staff is to technical side of the invention
Various modifications and improvement that case is made, all should fall into the protection domain of claims of the present invention determination.
Claims (7)
1. a kind of ring main unit temperature of cable junction monitoring system, including ring main unit, the ring main unit includes cable vault (1), switch
It is provided with room (2), secondary cabling room (3), PT power cabinets (4), power distribution automation room (5), the power distribution automation room (5) and is matched somebody with somebody
Electric terminals (6) and monitoring temperature terminal (7), the cable vault (1) have multiple positioned at ring main unit bottom, have cable to connect inside it
Head (8) and temperature sensor；
The ring main unit takes the common box type structure of breaker, lower load cell, is equipped with the sealing stainless steel casing of all insulation,
Built-in SF gases；
The switch gear room (2) is provided with the switchgear of ring main unit positioned at cable vault top；
The secondary cabling room (3) positioned at ring main unit top, switch gear room top, the secondary rack of ring main unit and temperature sensor, with
And the cabling of monitoring temperature terminal is connected up by secondary cabling room (3)；
Characterized in that, also including long-range main website；
The monitoring temperature terminal (7) includes digital signal controller and alarm module；
Temperature sensor is arranged in cable vault, and is connected with monitoring temperature terminal (7) by signal transmssion line；
The monitoring temperature terminal (7) is in communication with each other with long-range main website；
The monitoring temperature terminal (7) is connected with the alarm module；
The temperature sensor includes the first temperature sensor (9) and second temperature sensor (10), first TEMP
Device (9) measures cable connector absolute temperature, and second temperature sensor (10) the measurement ring main unit cable indoor environment is definitely warm
Degree；
When cable connector relative temperature and cable connector exceed respective threshold with respect to temperature rise rate, digital signal controller sends
Alarm signal, and alarm lamp or emergency alarm bell are sent to, and fan control signal is produced, lowered the temperature to cable vault (1)；
Meanwhile, digital signal controller sends separating brake order to ring main unit distribution terminal (6), powers off ring main unit, to ensure to set
Standby safety.
2. ring main unit temperature of cable junction monitoring system according to claim 1, it is characterised in that
The monitoring temperature terminal (7) and the ring main unit distribution terminal (6) are arranged in distribution automation room (5)；
The monitoring temperature terminal (7) is communicated by fieldbus or by wireless network with long-range main website；
The monitoring temperature terminal (7) is connected with alarm module by fieldbus；
The monitoring temperature terminal (7) also includes communication module and display module.
3. ring main unit temperature of cable junction monitoring system according to claim 2, it is characterised in that
Also include definite value encoder, photo-coupler；
The digital signal controller of the distribution terminal (6) and the alarm module, the display module, the communication module it
Between be provided with photo-coupler.
4. ring main unit temperature of cable junction monitoring system according to claim 3, it is characterised in that
The alarm module is alarm, and the display module is display screen；
The digital signal controller can be using the DSC chips of model STM32f407VG；
The communication module can be using H7710 series.
5. one kind carries out ring main unit cable connector using any ring main unit temperature of cable junction monitoring systems of claim 1-4
The method of monitoring temperature, it is characterised in that comprise the following steps：
Measure the environment absolute temperature and cable connector absolute temperature in ring main unit respectively by temperature sensor in ring main unit；
Calculate relative temperature of the cable connector to ring main unit environment；
Calculate the relative temperature rise rate of a period of time inner cable joint；
Relative temperature to cable connector and relative temperature rise rate set upper limit threshold, when the relative temperature of cable connector and relative
When temperature rise rate exceedes upper limit threshold, alarm is produced；
Digital signal controller sends separating brake order to ring main unit distribution terminal (6), powers off ring main unit, to ensure that equipment is pacified
Entirely；
Monitoring temperature terminal (7) sends alarm signal to communication module simultaneously, by communication module by local scene bus or
Wireless network sends long-range main website to；
Long-range main website sends to ring main unit monitoring temperature terminal (7) and instructs, and is allowed to start heat sink, carries out cooling operation.
6. the method for carrying out ring main unit temperature of cable junction monitoring according to claim 5, it is characterised in that including following
Step：
Trip temperature is entered to the absolute temperature of ring main unit inner cable joint (8) by first temperature sensor (9) in ring main unit
Real time on-line monitoring, and the value that will be measured sends the digital signal controller of monitoring temperature terminal (7) to；
The environment absolute temperature in ring main unit is carried out by the second temperature sensor (10) being installed in ring main unit existing in real time
Line is monitored, and the value that will be measured sends the digital signal controller of monitoring temperature terminal (7) to；
Monitoring temperature terminal (7) is compared to the absolute temperature of a period of time inner cable joint (8), calculates, analyzes, and draws electricity
The absolute temperature rise rate of cable joint, is compared to the absolute temperature in the same time period of environment temperature, calculates, analyzes, and obtains
Go out the absolute temperature rise rate of environment；
The digital signal controller of monitoring temperature terminal (7) is exhausted by the absolute temperature rise rate of environment and cable connector in a period of time
Calculating is compared to temperature rise rate, draws cable connector with respect to temperature rise rate v2；
The monitoring temperature terminal (7) obtains two temperature of cable connector absolute temperature and environment absolute temperature of synchronization,
Enter trip temperature to compare, obtain the relative temperature of cable connector；
The relative temperature of a period of time inner cable joint is compared meter by the digital signal controller of monitoring temperature terminal (7)
Calculate, draw the relative temperature rise rate v1 of cable connector；
The cable connector that the digital signal controller will be calculated is carried out with respect to temperature rise rate v1 and relative temperature rise rate v2
Compensation, verification, obtain actual cable with respect to temperature rise rate v0；
According to cable with respect to temperature rise rate v0, cable connector relative temperature threshold value and cable connector phase are set on definite value encoder
To temperature rise rate threshold value, and send digital signal controller to.
7. the method for carrying out ring main unit temperature of cable junction monitoring according to claim 6, it is characterised in that：
The monitoring temperature terminal (7) by GPRS communication modes and the swapping data of main website, and can pass through gsm communication
Alarm signal is sent to user mobile phone by mode, while having the local communications of RS232/RS485 and maintenance interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310695855.6A CN103676888B (en) | 2013-12-17 | 2013-12-17 | System and method for monitoring ring main unit cable joint temperature |
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| CN201310695855.6A CN103676888B (en) | 2013-12-17 | 2013-12-17 | System and method for monitoring ring main unit cable joint temperature |
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| CN103676888B true CN103676888B (en) | 2017-06-30 |
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|---|---|---|---|---|
| CN105301427B (en) * | 2015-10-26 | 2018-06-01 | 新疆金风科技股份有限公司 | The method for diagnosing faults and device of cable connector |
| CN106444922B (en) * | 2016-10-31 | 2018-08-07 | 国网上海市电力公司 | A kind of intelligent electric cable joint operation field heating controller and control method |
| CN106535577A (en) * | 2016-12-05 | 2017-03-22 | 四川行之知识产权运营服务有限公司 | Temperature control safety system for electrical control cabinet |
| CN107394750B (en) * | 2017-06-21 | 2019-05-21 | 合肥远见电力科技有限公司 | A kind of intelligent Bus monitoring system based on temperature anomaly detection |
| CN109285331B (en) * | 2018-11-29 | 2021-04-06 | 国网上海市电力公司 | Power cable temperature early warning system based on data analysis and temperature prediction |
| CN109946546A (en) * | 2019-04-10 | 2019-06-28 | 苏州科技大学 | A kind of the degradation system and method for excessive heating protection of photoelectrical coupler |
| CN110108366A (en) * | 2019-05-20 | 2019-08-09 | 国网福建省电力有限公司漳州供电公司 | A kind of infrared cable vault's temp measuring system of dot matrix based on dispatch network |
| CN111443263B (en) * | 2020-04-24 | 2022-02-22 | 上海道博电气有限公司 | Cable analysis device based on ring main unit and detection method thereof |
| CN111650475A (en) * | 2020-06-24 | 2020-09-11 | 国家电网有限公司 | Power distribution network cable monitoring method |
| CN112647927A (en) * | 2020-12-29 | 2021-04-13 | 天水电气传动研究所集团有限公司 | Automatic early warning method for power point temperature rise step type grading of drilling machine electric control system |
| CN218386815U (en) * | 2022-10-14 | 2023-01-24 | 云南电网有限责任公司普洱供电局 | Distributed online temperature monitoring system applied to power supply loop |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435329A (en) * | 2011-09-22 | 2012-05-02 | 河南省电力公司南阳供电公司 | Site intelligent online temperature measuring system of power equipment |
| CN202275131U (en) * | 2011-10-13 | 2012-06-13 | 西安众恒科技有限公司 | Temperature and outlet cable fault monitoring device for switch cabinet |
| CN202648804U (en) * | 2012-05-07 | 2013-01-02 | 西安德创电气科技有限公司 | High voltage contact and bus on-line temperature measuring device |
| CN202695972U (en) * | 2012-06-08 | 2013-01-23 | 航天科工深圳（集团）有限公司 | Ring net cabinet and temperature measurement system for cable joint of ring net cabinet |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203745860U (en) * | 2013-12-17 | 2014-07-30 | 北京合锐赛尔电力科技有限公司 | Ring main unit cable joint temperature monitoring system |
-
2013
- 2013-12-17 CN CN201310695855.6A patent/CN103676888B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435329A (en) * | 2011-09-22 | 2012-05-02 | 河南省电力公司南阳供电公司 | Site intelligent online temperature measuring system of power equipment |
| CN202275131U (en) * | 2011-10-13 | 2012-06-13 | 西安众恒科技有限公司 | Temperature and outlet cable fault monitoring device for switch cabinet |
| CN202648804U (en) * | 2012-05-07 | 2013-01-02 | 西安德创电气科技有限公司 | High voltage contact and bus on-line temperature measuring device |
| CN202695972U (en) * | 2012-06-08 | 2013-01-23 | 航天科工深圳（集团）有限公司 | Ring net cabinet and temperature measurement system for cable joint of ring net cabinet |
| 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 |
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|---|---|
| CN103676888A (en) | 2014-03-26 |
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