CN107300427A - A kind of temperature warning system and method for power distribution network primary equipment - Google Patents
A kind of temperature warning system and method for power distribution network primary equipment Download PDFInfo
- Publication number
- CN107300427A CN107300427A CN201710654867.2A CN201710654867A CN107300427A CN 107300427 A CN107300427 A CN 107300427A CN 201710654867 A CN201710654867 A CN 201710654867A CN 107300427 A CN107300427 A CN 107300427A
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- optical fiber
- power distribution
- primary equipment
- distribution network
- temperature warning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Abstract
The invention provides a kind of temperature warning system and method for power distribution network primary equipment.The system includes plastic optical fiber and temperature warning device, the plastic optical fiber winding is arranged on needed for power distribution network primary equipment at thermometric, it includes the first connector and the second connector, the temperature warning device includes a shell, fibre optical transmission unit is provided with shell, processor, driver element, photosensitive detection unit, A/D converting units and network transmitting unit, the driver element is connected with processor, the fiber optic emitter is connected with the first connector of the optical fiber, the photosensitive detection unit is connected with the second connector of the optical fiber, the A/D converting units are connected with the processor, the processor is connected with network transmitting unit.The present invention can be prevented effectively from the primary equipment failure that causes of overheat, it is to avoid the generation of accident, ensure the safe and stable operation of power distribution network.
Description
Technical field
The present invention relates to temperature warning system and the side of distribution network technology field, more particularly to a kind of power distribution network primary equipment
Method.
Background technology
Overheat is the common failure of electrical equipment, and the reason for power distribution network primary equipment is overheated is many.According to investigation
Research shows, the first place of all kinds of abnormal heating failures is accounted for the bad heating accident being characterized of all kinds of electrical contacts, is led with various
Heating based on body joint accounts for more than the 70% of all hot stalls, and in various modular device interior hot stalls, electrical contact is not
Good heating also occupies considerable proportion, and insulating properties heating accident ratio is relatively small.Power distribution network primary equipment heating problem is general
Store-through exists, and potential danger can not be ignored, the aging of increase, equipment in particular with load, environment temperature and electrically
Contact temperature is easily higher, if processing may cause to catch fire or explosion accident not in time.Therefore, the temperature warning of primary equipment
It is very important.The position of thermometric is needed in primary equipment to be had：Transformer is into and out of line contact, and high-low voltage switch cabinet is touched
Head, the joint and cable of cable and the junction of electrical equipment, joint of bus etc..
Current infrared thermal imaging technique made great progress than in the past, but because it is off-line type, this technical operation
Complexity, it is expensive, it is difficult popularization.And common Medium Voltage Switchgear switch contact is located in totally-enclosed metal armouring cabinet, often
The infrared measurement of temperature of rule can not be realized.Actual motion has optical fiber temperature-measurement, wireless temperature measurement at present, but is both needed to touch in each of switch cubicle
Using special temperature sensor, while coordinating dedicated management main frame to realize the real-time detection of temperature on head, although thermometric can
With relatively accurate, but application cost is higher, and need to generally be installed on static contact needs bus to have a power failure, therefore promote the use at the scene at present
And it is few.
In fact, real time temperature of the transformer into and out of the position such as line contact and high-low voltage switch cabinet contact is inessential, only
It is the annealing temperature that contact temperature rise threshold values to be prevented does not exceed touch spring（150 DEG C generally can not be surpassed）, lost to prevent spring
Elastic force, accelerates to deteriorate loose contact；The bearing temperature of insulating materials can not be exceeded（If F class B insulations are 155 DEG C）, to prevent insulation
Failure.As long as can in time find and handle these overheating defects, the normal operation of power distribution network primary equipment can't be caused not
It can redeem one's reputation, live O＆M is in the urgent need to easy to use, economic and reliable a intelligent alarm " temperature display wax sheet ", once find
The temperature anomaly at the position such as transformer line and switch contact is backstage Real-time Alarm.
The content of the invention
It is an object of the invention to overcome above-mentioned drawback, so that there is provided a kind of temperature warning system of power distribution network primary equipment
System and method.
In a first aspect, the invention provides a kind of temperature warning system of power distribution network primary equipment.The system includes modeling
Expect optical fiber and temperature warning device, the plastic optical fiber winding is arranged on needed for power distribution network primary equipment at thermometric, and it includes
First connector and the second connector, the temperature warning device are included in a shell, shell provided with fibre optical transmission unit, processing
Device, driver element, photosensitive detection unit, A/D converting units and network transmitting unit,
The driver element is connected with processor, to drive the fibre optical transmission unit to send out according to the control instruction of processor
Light；
The fiber optic emitter is connected with the first connector of the optical fiber, the driving electric signal of reception is converted into light letter
Number and transmit to the plastic optical fiber；
The photosensitive detection unit is connected with the second connector of the optical fiber, to detect the light that plastic optical fiber is transmitted
Signal intensity, and different analog voltage signals are exported to the A/D converting units according to the signal intensity of light；
The A/D converting units are connected with the processor, and the analog voltage signal photosensitive detection unit to be sent is changed
For digital voltage signal and send to the processor；
The processor is connected with the network transmitting unit, the work to control the driver element, and according to reception
Voltage signal size judge the temperature value of plastic optical fiber, and network transmission list will be passed through more than the judged result of preset temperature value
Member is transmitted to background server.
Further, the system also includes filter and amplification unit, and the filter and amplification unit includes rc filter circuit
And in-phase amplification circuit,
The in-phase amplification circuit is connected with the photosensitive detection unit, and the electric signal to be exported to photosensitive detection unit is carried out
Amplification；
The rc filter circuit is connected respectively with the in-phase amplification circuit and the A/D converting units, same will mutually put
Electric signal after big circuit amplification is filtered processing.
Further, the driver element uses model DS75452 twin-channel serial driver.
Further, the photosensitive detection unit includes model MG45 photo resistance and is encapsulated in connecing outside it
Mouthful, second connector of the interface to connect the optical fiber.
Further, the week of plastic optical fiber winding 2 to 3 power distribution network primary equipment transformer entry/exit line contact,
The contact of high low pressure switch cubicle, the joint of cable, the junction of the joint of bus and cable and electrical equipment.
Further, the fibre optical transmission unit uses HFBR-1532 fiber optic emitters.
Further, the shell of the temperature warning device is provided with buckle.
In second aspect, present invention also offers a kind of temperature warning method of power distribution network primary equipment, this method includes：
Fiber optic emitter transmitting light source is driven, to transmit optical signal to the plastic optical fiber, the plastic optical fiber is wrapped in distribution
Needed for net primary equipment at thermometric；
The optical signal that plastic optical fiber is fed back to is received, corresponding analog voltage signal is exported according to the intensity of optical signal；
Analog voltage signal is converted into digital voltage signal；
According to digital voltage signal, the temperature of the plastic optical fiber is judged；
It will be transmitted more than the judged result of preset temperature value by network transmitting unit to background server.
Further, it is described analog voltage signal is converted into digital voltage signal before also include：Analog voltage is believed
Number carry out signal amplification and filtering process.
Further, include needed for the power distribution network primary equipment at thermometric：Transformer entry/exit line contact, high low pressure
The contact of switch cubicle, the joint of cable, the junction of the joint of bus and cable and electrical equipment.
The present invention is high using plastic optical fiber insulating properties, and plastic optical fiber is wrapped in temperature-sensitive by the characteristics of core heat resistance is poor
Point, tail end is drawn out to temperature warning device.Once temperature exceedes the glass transition temperature of optical fiber at thermometric at thermometric, optical fiber
Block disconnected after sandwich layer liquefaction, optical channel will just be interrupted, and send overtemperature to alert on alarm device, corresponding application power failure is overhauled.
It effectively prevent the primary equipment failure that causes of overheat, it is to avoid the generation of accident, ensured the safe and stable fortune of power distribution network
OK.
Brief description of the drawings
Fig. 1 is a kind of structured flowchart of the temperature warning system of power distribution network primary equipment provided in an embodiment of the present invention；
Fig. 2 is a kind of circuit theory diagrams of the temperature warning system of power distribution network primary equipment provided in an embodiment of the present invention；
Fig. 3 is the connection diagram of temperature warning system provided in an embodiment of the present invention and transformer line；
Fig. 4 is temperature warning system provided in an embodiment of the present invention and the connection diagram of switch of switch cabinet contact；
Fig. 5 is a kind of temperature warning method flow diagram of power distribution network primary equipment provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be noted that accompanying drawing is merely illustrative, do not painted according to strict ratio
Make, and the wherein possible promising partial enlargement for describing facility and carrying out, diminution, may also have for conventional partial structure necessarily
It is default.
Plastic optical fiber（POF）It is cheap and easily-available relative to conventional quartz optical fiber, while having diameter big（1mm）, soft pliable
Bent, easy processing connection, it is easy to use the characteristics of.Plastic optical fiber uses electric property good material such as silicon rubber, ethylene-propylene-diene monomer
Glue is coated, and insulating properties are high.But its core is high polymer material, heat resistance is poor.The conventional thang-kng core of plastic optical fiber
PMMA（It is commonly called as lucite）, its glass transition temperature is 105 DEG C, more than this temperature, becomes liquid after PMMA vitrifyings, such as
Fruit forms card breakpoint under external force, cannot normal transmission light.It is of the invention then carried out using the characteristic of plastic optical fiber
The temperature survey of power distribution network primary equipment temperature-sensitive point.
A kind of temperature warning circuit system schematic diagram for power distribution network primary equipment that Fig. 1 provides for the present invention.
As shown in figure 1, this embodiment offers a kind of temperature warning system circuit diagram of power distribution network primary equipment.The system
Including plastic optical fiber 1 and temperature warning device 2.
Plastic optical fiber 1 winds 2-3 weeks needed for power distribution network primary equipment at thermometric, such as transformer entry/exit line contact,
The contact of high low pressure switch cubicle, the joint of cable, the junction of the joint of bus and cable and electrical equipment.Plastic optical fiber
Overall length is no more than 3 meters.Plastic optical fiber 1 carries the first connector 11 and the second connector 12, and two connectors are that the SC of standard connects
Head.
Temperature warning device 2 includes buckle structure also can be set on a shell, shell, and the purpose for setting buckle structure can be square
Just alarm device is placed.Processor 21, driver element 22, fibre optical transmission unit 23, photosensitive detection unit 24, A/ are provided with shell
D conversion unit 25 and network transmitting unit 26.
Driver element 22 is using DS75452 twin-channel serial driver, and each passage is by one and door and one three
Pole pipe constitute, first passage be two paths of signals A1 and A2 with door export, second passage be two paths of signals B1 and B2 with
Door output.Signal input part A1 and B2 is connected with power supply VCC, and is grounded after being connected with electric capacity C2, signal input part A2 and B1 with
Processor 21 is connected.Signal output part Y1 (the current collection levels of triode of first passage）With the signal output part of second passage
Y2（The current collection level of triode）It is connected with fibre optical transmission unit 23 and resistance R6, the transistor emitter of first passage and second
The triode emission level ground connection of passage.The control that driver element 23 in the present embodiment is mainly used to the transmission of reception processing device 21 refers to
Order there is provided the operating voltage required for fibre optical transmission unit 23 with drive fibre optical transmission unit 23 light.When processor 21 is provided
When low level signal, two export low level with door, and two triodes are not turned on, and delivery outlet Y1 and Y2 is drawn by power supply VCC is
High level, fibre optical transmission unit 23 is turned on.Conversely, when processor 21 provides high level signal, two high electric with door output
Flat, two triode ONs, delivery outlet Y1 and Y2 are shorted to ground, and fibre optical transmission unit 23 is not turned on.The common skill of this area
Art personnel should be appreciated that the driver element 22 in the present embodiment can also take other types of drive circuit, such as pass through independence
The drive circuit that device metal-oxide-semiconductor and NOT gate are constituted.
Fibre optical transmission unit 23 uses the fiber optic emitter of HFBR-1532 models, its signal input part and driver element 22
Output end be connected, its signal output part is connected with the first connector 11 of optical fiber 1, and it is mainly used to the driving voltage of reception
Signal is converted to optical signal and transmitted to plastic optical fiber 1.
The interface that photosensitive detection unit 24 includes MG45 photo resistance R2 and is encapsulated in outside it, the interface is mainly used to
Connect the second connector of optical fiber 1.Photo resistance R2 one end is grounded, access power supply VCC after the other end connects with resistance.Pass through light
The signal intensity for the light that quick resistance R2 detections plastic optical fiber 1 is transmitted, and according to the different simulations of the signal intensity of light output
Voltage signal is to A/D converting units 25.
A/D converting units 25 are 16 A/D conversion chips, and it is connected with processor 22, to by photosensitive detection unit 24
The analog voltage signal of transmission is converted to digital voltage signal and sent to processor 21.
Processor 21 uses MSP430 process chips, and it is connected with network transmitting unit 26, is mainly used to coordinate control respectively
The work of unit and the processing of signal.For example, the control driver element 22 of processor 21 works needed for providing fibre optical transmission unit 23
Voltage, and the voltage signal size sent according to A/D converting units 25 judge the temperature value of plastic optical fiber, and will exceed default
The judged result of temperature value is transmitted to background server by network transmitting unit 26, and police instruction is carried out by background server.
Network transmitting unit 26 and background server wireless connection, its can for gsm module, GPRS module, EDGE modules,
Any one in CDMA module and WCDMA modules.According to the report for being exported processor 21 using different wireless sending modules
Alert signal is sent to background server with the different network transmission protocols.
Further, since the optical signal occurred can be disturbed and weaken in transmitting procedure, it is defeated by photosensitive detection unit 24
The more original signal of voltage signal gone out can weaken and distortion, so the embodiment of the present invention can be in photosensitive detection unit 24 and A/D
Filter and amplification unit 27 is set up between converting unit 25, the voltage for photosensitive detection unit 24 being transmitted by filter and amplification unit 27
Signal is amplified, be re-fed into A/D converting units 25 after filtering process.Filter and amplification unit 27 in the present embodiment includes capacitance-resistance
Filter circuit 27.1 and in-phase amplification circuit 27.2.
The in-phase input end of the amplifier of in-phase amplification circuit 27.2 accesses power supply VCC, inverting input after being connected with resistance R1
It is grounded by resistance R3, inverting input is terminated with feedback resistance R3, output end and the electricity of rc filter circuit 27.1 with output
Resistance R5 one end is connected, and electric capacity C1 one end is connected the resistance R5 other end with A/D converting units 25 respectively, and electric capacity C1's is another
One end is grounded.In-phase amplification circuit 27.2 in the present embodiment is main to be put to the electric signal that photosensitive detection unit is exported
Greatly, the electric signal after rc filter circuit 27.1 is in-phase amplification circuit 27.2 to be amplified is re-fed into A/ after being filtered processing
D conversion unit 25.
Fig. 2 is a kind of circuit theory diagrams of the temperature warning system of power distribution network primary equipment provided in an embodiment of the present invention.
As shown in Fig. 2 the temperature warning system of the power distribution network primary equipment of the present embodiment includes optical fiber 1 and temperature warning is filled
2 are put, temperature warning device 2 includes processor 21, driver element 22, fibre optical transmission unit 23, photosensitive detection unit 24, A/D and turned
Change unit 25, network transmitting unit 26 and filter and amplification unit 27.
When electricity on temperature warning device 2, drive signal, the driving fibre optical transmission list of driver element 22 are sent by processor 21
Member is luminous, and the optical signal sent is transmitted to photosensitive detection unit 24 by plastic optical fiber 1, by photosensitive detection unit 24 detect through
The signal intensity of the light of plastic optical fiber, and corresponding analog voltage signal is exported to filter and amplification unit 27, by filter and amplification list
The analog voltage signal that the photosensitive detection unit 24 of 27 pairs of member is exported, which is filtered after amplification processor, sends into A/D converting units 25,
Analog voltage signal is converted to after digital voltage signal by feeding processor 21 by A/D converting units 25, by processor 21
The voltage signal size sent according to A/D converting units 25 judges the temperature value of plastic optical fiber, and by sentencing more than preset temperature value
Disconnected result is transmitted to background server by network transmitting unit 26, and police instruction is carried out by background server.
Fig. 3 is the connection diagram of temperature warning system provided in an embodiment of the present invention and transformer line；
As shown in figure 3, the winding of plastic optical fiber 1 is arranged on into transformer line position, winding is used as temperature-sensitive point, plastics in 2-3 weeks
Optical fiber two ends are drawn out to temperature warning device 2, and transformer line position plastic optical fiber is detected by temperature warning device 2
Temperature, once the temperature anomaly for finding transformer line position is backstage Real-time Alarm.
Fig. 4 is temperature warning system provided in an embodiment of the present invention and the connection diagram of switch of switch cabinet contact.
As shown in figure 4, the winding of plastic optical fiber 1 is arranged on into position at the nearly contact of switch of switch cabinet contact arm, wind 2-3 weeks
As temperature-sensitive point, the two ends of plastic optical fiber 1 are drawn out to temperature warning device 2, by temperature warning device 2 come detection switch contact position
The temperature of plastic optical fiber is put, once the temperature anomaly for finding transformer line position is backstage Real-time Alarm.
Fig. 5 is a kind of temperature warning method flow diagram of power distribution network primary equipment provided in an embodiment of the present invention.
In step 501, driving fiber optic emitter transmitting light source, to transmit optical signal, the modeling to the plastic optical fiber
Optical Fiber Winding is expected needed for power distribution network primary equipment at thermometric, for example, transformer entry/exit line contact, high low pressure switch cubicle
Contact, the joint of cable, the junction of the joint of bus and cable and electrical equipment.
In step 502, the optical signal that plastic optical fiber is fed back to is received, corresponding simulation is exported according to the intensity of optical signal
Voltage signal.
In step 503, the analog voltage signal in step 502 is subjected to signal amplification and filtering process, the step can
Faint optical signal is amplified and removed harmonic management, the distortion factor of waveform is reduced.
In step 504, analog voltage signal is converted into digital voltage signal.
In step 505, according to digital voltage signal, the temperature of the plastic optical fiber is judged.
In step 506, it will be transmitted more than the judged result of preset temperature value by network transmitting unit to background service
Device.
Therefore, the present invention effectively prevent based on the temperature warning for above embodiments enabling power distribution network primary equipment
The primary equipment failure that heat is caused, it is to avoid the generation of accident, has ensured the safe and stable operation of power distribution network.
Above-described embodiment, has been carried out further to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of temperature warning system of power distribution network primary equipment, it is characterised in that including plastic optical fiber and temperature warning device,
The plastic optical fiber winding is arranged on needed for power distribution network primary equipment at thermometric, and it includes the first connector and the second connection
Head, the temperature warning device includes being provided with fibre optical transmission unit, processor, driver element, photosensitive detection in a shell, shell
Unit, A/D converting units and network transmitting unit,
The driver element is connected with processor, to drive the fibre optical transmission unit to send out according to the control instruction of processor
Light；
The fiber optic emitter is connected with the first connector of the optical fiber, the driving electric signal of reception is converted into light letter
Number and transmit to the plastic optical fiber；
The photosensitive detection unit is connected with the second connector of the optical fiber, to detect the light that plastic optical fiber is transmitted
Signal intensity, and different analog voltage signals are exported to the A/D converting units according to the signal intensity of light；
The A/D converting units are connected with the processor, and the analog voltage signal photosensitive detection unit to be sent is changed
For digital voltage signal and send to the processor；
The processor is connected with network transmitting unit, the work to control the driver element, and according to the electricity of reception
Pressure signal magnitude judges the temperature value of plastic optical fiber, and the judged result more than preset temperature value is passed by network transmitting unit
Transport to background server.
2. the temperature warning system of a kind of power distribution network primary equipment according to claim 1, it is characterised in that also including filter
Ripple amplifying unit, the filter and amplification unit includes rc filter circuit and in-phase amplification circuit,
The in-phase amplification circuit is connected with the photosensitive detection unit, and the electric signal to be exported to photosensitive detection unit is carried out
Amplification；
The rc filter circuit is connected respectively with the in-phase amplification circuit and the A/D converting units, same will mutually put
Electric signal after big circuit amplification is filtered processing.
3. a kind of temperature warning system of power distribution network primary equipment according to claim 1, it is characterised in that the driving
Unit uses model DS75452 twin-channel serial driver.
4. the temperature warning system of a kind of power distribution network primary equipment according to claim 1, it is characterised in that described photosensitive
The interface that detection unit includes model MG45 photo resistance and is encapsulated in outside it, the interface is to connect the optical fiber
The second connector.
5. a kind of temperature warning system of power distribution network primary equipment according to claim 1, it is characterised in that the plastics
The all transformer entry/exit line contacts, the contact of high low pressure switch cubicle, cable in power distribution network primary equipment of Optical Fiber Winding 2 to 3
The junction of joint, the joint of bus and cable and electrical equipment.
6. a kind of temperature warning system of power distribution network primary equipment according to claim 1, it is characterised in that the optical fiber
Transmitter unit uses HFBR-1532 fiber optic emitter.
7. a kind of temperature warning system of power distribution network primary equipment according to claim 1, it is characterised in that the temperature
The shell of alarm device is provided with buckle.
8. a kind of temperature warning method of power distribution network primary equipment, it is characterised in that including：
Fiber optic emitter transmitting light source is driven, to transmit optical signal to the plastic optical fiber, the plastic optical fiber is wrapped in distribution
Needed for net primary equipment at thermometric；
The optical signal that plastic optical fiber is fed back to is received, corresponding analog voltage signal is exported according to the intensity of optical signal；
Analog voltage signal is converted into digital voltage signal；
According to digital voltage signal, the temperature of the plastic optical fiber is judged；
It will be transmitted more than the judged result of preset temperature value by network transmitting unit to background server.
9. the temperature warning method of a kind of power distribution network primary equipment according to claim 8, it is characterised in that described by mould
Intend also including before voltage signal is converted to digital voltage signal：Analog voltage signal is subjected to signal amplification and filtering process.
10. the temperature warning method of a kind of power distribution network primary equipment according to claim 8, it is characterised in that described to match somebody with somebody
Include needed for power network primary equipment at thermometric：Transformer entry/exit line contact, the contact of high low pressure switch cubicle, cable connect
The junction of head, the joint of bus and cable and electrical equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710654867.2A CN107300427A (en) | 2017-08-03 | 2017-08-03 | A kind of temperature warning system and method for power distribution network primary equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710654867.2A CN107300427A (en) | 2017-08-03 | 2017-08-03 | A kind of temperature warning system and method for power distribution network primary equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107300427A true CN107300427A (en) | 2017-10-27 |
Family
ID=60133240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710654867.2A Withdrawn CN107300427A (en) | 2017-08-03 | 2017-08-03 | A kind of temperature warning system and method for power distribution network primary equipment |
Country Status (1)
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| CN (1) | CN107300427A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110261002A (en) * | 2019-05-14 | 2019-09-20 | 铠龙东方汽车有限公司 | A kind of power battery pack temperature-detecting device |
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| CN201527832U (en) * | 2009-09-25 | 2010-07-14 | 国网电力科学研究院武汉南瑞有限责任公司 | Electric cable device for intelligently on-line measuring temperature and local discharge |
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| CN204439707U (en) * | 2015-01-30 | 2015-07-01 | 哈尔滨理工大学 | A kind of networking type medium voltage cable tap head on-line monitoring system |
| CN205607563U (en) * | 2016-05-04 | 2016-09-28 | 国网江苏省电力公司苏州供电公司 | Super temperature warning system of handcart switch contact |
| CN207379628U (en) * | 2017-08-03 | 2018-05-18 | 南京科瑞电力科技有限公司 | A kind of temperature warning system of power distribution network primary equipment |
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2017
- 2017-08-03 CN CN201710654867.2A patent/CN107300427A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201527832U (en) * | 2009-09-25 | 2010-07-14 | 国网电力科学研究院武汉南瑞有限责任公司 | Electric cable device for intelligently on-line measuring temperature and local discharge |
| CN102411119A (en) * | 2011-11-21 | 2012-04-11 | 合肥工业大学 | Intelligent monitoring device for temperature and insulation state of 330KV high-voltage cable in hydropower station |
| CN204439707U (en) * | 2015-01-30 | 2015-07-01 | 哈尔滨理工大学 | A kind of networking type medium voltage cable tap head on-line monitoring system |
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| CN207379628U (en) * | 2017-08-03 | 2018-05-18 | 南京科瑞电力科技有限公司 | A kind of temperature warning system of power distribution network primary equipment |
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| CN110261002A (en) * | 2019-05-14 | 2019-09-20 | 铠龙东方汽车有限公司 | A kind of power battery pack temperature-detecting device |
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Application publication date: 20171027 |
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| WW01 | Invention patent application withdrawn after publication |