CN208520500U - A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval - Google Patents
A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval Download PDFInfo
- Publication number
- CN208520500U CN208520500U CN201821257834.0U CN201821257834U CN208520500U CN 208520500 U CN208520500 U CN 208520500U CN 201821257834 U CN201821257834 U CN 201821257834U CN 208520500 U CN208520500 U CN 208520500U
- Authority
- CN
- China
- Prior art keywords
- temperature
- cable
- collecting card
- data collecting
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval, including cable, switchgear, switchgear includes Current Transformer Secondary side lead, Switching Power Supply, temperature transmitter, wireless module, data collecting card, temperature sensor, secondary current mutual inductor, current transducer, wherein: secondary current mutual inductor covers on the lead of Current Transformer Secondary side, is connected with current transducer；Current transducer is connected with data collecting card；Temperature sensor is set to cable close to three temperature measuring points of the axial alignment of the cable surface of connector, and temperature sensor is connected by lead with temperature transmitter；Temperature transmitter is connected with data collecting card；Data collecting card is connected with wireless module, current transducer；Secondary current mutual inductor covers on the lead of Current Transformer Secondary side, is connected with current transducer；Switching Power Supply is connected with temperature transmitter, wireless module, data collecting card, current transducer respectively.Realize non-destructive monitoring connector core temperature.
Description
Technical field
The utility model relates to 10kV Temperature of Power Cables detection fields, are based on temperature retrieval more particularly, to one kind
10kV cable intermediate joint core temperature monitoring device.
Background technique
10kV power cable is the important carrier of power transmission and the key equipment for guaranteeing operation of power networks, the use in China
It is more and more extensive.It is found by being counted to cable and junction malfunction, cable connector breakdown can be divided into two class of electrical breakdown and thermal breakdown, office
Portion's electric discharge and core temperature play the safe operation of cable connector decisive as characterization electricity, the key index of thermal stress
Effect.
Core temperature is the important parameter for determining cable service life, when the running temperature of cable is more than a certain particular value
When, it will lead to cable aging acceleration, may cause cable thermal breakdown when serious, to cause the accidents such as electric shock, fire, this is special
Definite value is known as the long-term permission maximum operating temperature of cable insulation material.Therefore, cable conductor temperature is carried out charging real-time prison
It surveys, so that core temperature is no more than long-term permission maximum operating temperature, can guarantee that a certain extent cable is safely and steadly transported
Row.
Currently used thermometry has IR thermometry, resistance method of temperature determination, thermocouple thermometry, optical fiber temperature-measurement
Method, integrated temperature sensor.Although infrared measurement of temperature breaches the limitation of traditional contact measurement technology, but for very long
Cable run, especially complicated underground laying situation, and be not suitable for.Resistance temperature measurement advantage is not need cold junction compensation, but make
It is more complex to make technique.Optical fiber is then directly placed in inside cable by optical fiber temperature-measurement, requires height to cable working technology, measurement is
Insulating layer temperature, response is fast, and precision is high.But distributed temperature measuring system relies on matched cable temperature detection device and stable light
Electric conversion module, it is at high cost, it is also unsuitable for promoting on a large scale.Thermocouple temperature measurement structure is simple, and sensing element is small in size, thermal capacity
Also small, fast response time, sensitivity is higher, and stability is good.It is widely used for the temperature within the scope of 100 DEG C~1300 DEG C of measurement
Degree.
Utility model content
The utility model in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of based on temperature retrieval
10kV cable intermediate joint core temperature monitoring device.
The utility model is intended to solve above-mentioned technical problem at least to a certain extent.
The primary and foremost purpose of the utility model is to solve that lossless inspection side, high sensitivity, stability is good and the widely applied survey of energy
The problem of measuring 10kV cable intermediate joint core temperature.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval, including cable, switchgear, institute
Stating switchgear includes Current Transformer Secondary side lead, further includes Switching Power Supply, temperature transmitter, wireless module, data acquisition
Card, temperature sensor, secondary current mutual inductor, current transducer, in which:
Secondary current mutual inductor covers on the lead of Current Transformer Secondary side, is connected with current transducer；
Current transducer is connected with data collecting card.
Temperature sensor is set to cable close to three temperature measuring points of the axial alignment of the cable surface of connector, temperature sensing
Device is connected by lead with temperature transmitter；
Temperature transmitter is connected with data collecting card；
Data collecting card is connected with wireless module, current transducer；
Switching Power Supply is connected with temperature transmitter, wireless module, data collecting card, electric current phase convertor respectively.
Secondary current mutual inductor covers on the lead of Current Transformer Secondary side, is connected with current transducer；
This method is anti-by radial temperature by cable surface temperature near temperature sensor measurement cable connector and electric current
It drills to obtain the core temperature of corresponding temperature measuring point, then cable core junction contacts point temperature is obtained by cable core axial temperature inverting, realize nothing
Damage detection.
Preferably, temperature sensor is wrapped up as surrounding layer using Ya Luofu heat insulation foam, prevent external environment with
Machine interference；Heat-conducting silicone grease has been smeared with cable surface contact surface, it is ensured that good with conductive cable contacts；Surrounding layer outermost layer is with transparent
Glue is fixed, it is ensured that temperature sensor and cable are in close contact.
Preferably, Switching Power Supply is 220V AC power source, and all components require Switching Power Supply and are powered ability normally
Work.
Preferably, wireless module uses DTU(data transmission unit) carry out data transmission, it sends data to backstage and carries out
Operation.
Preferably, Switching Power Supply, temperature transmitter, wireless module, data collecting card are all integrated in waterproofing protection case, are prevented
Only rainy day, wet weather interfere device, influence the accuracy of device.
Preferably, current transducer is put into shielding box, and shielding box side wall has an aperture, current transducer can by aperture with
Data collecting card is connected, and prevents electromagnetic interference from destroying with external force and causes to damage to current transducer.
It preferably, further include background server, background server is connected through wireless network with wireless module, and wireless module will
Data are uniformly sent to background server, carry out warmly taking Inversion Calculation and storage.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
Using temperature sensor measurement near joints cable surface temperature, cable core axial temperature is obtained by temperature retrieval,
To which measurement obtains joint cable conductor temperature, since temperature sensor has component size small, fast response time, precision
It is high, it is possible to be simply widely used in very much at the 10kV cable of different occasions, very good solution lossless inspection side, sensitivity
The problem of high, stability is good and energy widely applied measurement 10kV cable intermediate joint core temperature.
Detailed description of the invention
Fig. 1 is the 10kV cable intermediate joint core temperature monitoring device provided by the utility model based on temperature retrieval.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product
Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing
's.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
Embodiment 1
10kV cable intermediate joint core temperature monitoring device provided in this embodiment based on temperature retrieval, structure are shown
It is intended to such as Fig. 1, including including cable, switchgear, the switchgear includes Current Transformer Secondary side lead, further includes switch electricity
Source, temperature transmitter, wireless module, data collecting card, temperature sensor, secondary current mutual inductor, current transducer, in which:
Secondary current mutual inductor covers on the lead of Current Transformer Secondary side, is connected with current transducer；
Current transducer is connected with data collecting card.
Temperature sensor is set to cable close to three temperature measuring points of the axial alignment of the cable surface of connector, temperature sensing
Device is connected by lead with temperature transmitter；
Temperature transmitter is connected with data collecting card；
Data collecting card is connected with wireless module, current transducer；
Switching Power Supply is connected with temperature transmitter, wireless module, data collecting card, electric current phase convertor respectively.
Secondary current mutual inductor covers on the lead of Current Transformer Secondary side, is connected with current transducer；
Temperature sensor is wrapped up using Ya Luofu heat insulation foam as surrounding layer, and the random disturbances of external environment are prevented；
Heat-conducting silicone grease has been smeared with cable surface contact surface, it is ensured that good with conductive cable contacts；Surrounding layer outermost layer is fixed with transparent adhesive tape,
Ensure that temperature sensor and cable are in close contact.
Switching Power Supply is 220V AC power source, and all components require Switching Power Supply and are powered and could work normally.
Wireless module uses DTU(data transmission unit) carry out data transmission, it sends data to backstage and carries out operation.
Switching Power Supply, temperature transmitter, wireless module, data collecting card are all integrated in waterproofing protection case, prevent the rainy day,
Wet weather interferes device, influences the accuracy of device.
Current transducer is put into shielding box, and shielding box side wall has aperture, and current transducer can be adopted by aperture and data
Truck is connected, and prevents electromagnetic interference from destroying with external force and causes to damage to current transducer.
It further include background server, background server is connected through wireless network with wireless module, and wireless module unites data
One is sent to background server, carries out temperature retrieval and calculates and store.
In the specific implementation process, temperature sensor obtains three thermometrics of cable surface axial alignment near cable connector
The temperature of point converts analog voltage signal, then incoming data collecting card for temperature signal by temperature transmitter；In order to measure
The three-phase current of cable is covered on the Current Transformer Secondary side lead in switchgear using secondary current mutual inductor, obtains three
Phase current information converts voltage signal, then incoming data collecting card for current signal by current transducer；Data collecting card
The unified analog voltage signal for being passed to temperature transmitter and current transducer, which is converted into, is familiar with signal and incoming wireless module
DTU, wireless module DTU uniformly send data to background server, carry out temperature retrieval by background server and calculate and store.
The same or similar label correspond to the same or similar components；
The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (7)
1. a kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval, including cable, switchgear, described
Switchgear includes Current Transformer Secondary side lead, which is characterized in that further include Switching Power Supply, temperature transmitter, wireless module,
Data collecting card, temperature sensor, secondary current mutual inductor, current transducer, in which:
The secondary current mutual inductor covers on the lead of the Current Transformer Secondary side, is connected with the current transducer；
The current transducer is connected with the data collecting card；
The temperature sensor is set to the cable close to three temperature measuring points of the axial alignment of the cable surface of connector, described
Temperature sensor is connected by lead with the temperature transmitter；
The temperature transmitter is connected with the data collecting card；
The data collecting card is connected with the wireless module, current transducer；
The secondary current mutual inductor covers on the lead of the Current Transformer Secondary side, is connected with the current transducer；
The Switching Power Supply is connected with the temperature transmitter, wireless module, data collecting card, current transducer respectively.
2. the 10kV cable intermediate joint core temperature monitoring device according to claim 1 based on temperature retrieval, special
Sign is that the temperature sensor is wrapped up using Ya Luofu heat insulation foam as surrounding layer, applies with cable surface contact surface
Heat-conducting silicone grease is smeared, surrounding layer outermost layer is fixed with transparent adhesive tape.
3. the 10kV cable intermediate joint core temperature monitoring device according to claim 1 based on temperature retrieval, special
Sign is that the Switching Power Supply is 220V AC power source.
4. the 10kV cable intermediate joint core temperature monitoring device according to claim 1 based on temperature retrieval, special
Sign is that the wireless module uses DTU(data transmission unit) carry out data transmission.
5. the 10kV cable intermediate joint core temperature monitoring device according to claim 1 based on temperature retrieval, special
Sign is that the Switching Power Supply, temperature transmitter, wireless module, data collecting card are all integrated in waterproofing protection case.
6. the 10kV cable intermediate joint core temperature monitoring device according to claim 1 based on temperature retrieval, special
Sign is that the current transducer is put into shielding box, and the shielding box side wall has aperture, and the current transducer can be by small
Hole is connected with the data collecting card.
7. the 10kV cable intermediate joint core temperature monitoring device according to claim 1 based on temperature retrieval, special
Sign is, further includes background server, and the background server is connected through wireless network with the wireless module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821257834.0U CN208520500U (en) | 2018-08-06 | 2018-08-06 | A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821257834.0U CN208520500U (en) | 2018-08-06 | 2018-08-06 | A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208520500U true CN208520500U (en) | 2019-02-19 |
Family
ID=65333404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821257834.0U Active CN208520500U (en) | 2018-08-06 | 2018-08-06 | A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208520500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801502A (en) * | 2018-08-06 | 2018-11-13 | 广东电网有限责任公司 | A kind of 10kV cable intermediate joint core temperature monitoring devices based on temperature retrieval |
-
2018
- 2018-08-06 CN CN201821257834.0U patent/CN208520500U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801502A (en) * | 2018-08-06 | 2018-11-13 | 广东电网有限责任公司 | A kind of 10kV cable intermediate joint core temperature monitoring devices based on temperature retrieval |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108181000A (en) | A kind of contact of breaker detection method for temperature rise based on GIS housing thermometrics | |
| CN201697724U (en) | Temperature monitoring module of running equipment | |
| CN204027732U (en) | Transmission line wire temperature detection device | |
| CN107687909A (en) | A kind of cable temperature monitoring system based on Intelligent internet of things | |
| CN203102580U (en) | Wireless temperature measuring system | |
| CN202651537U (en) | Cable plug with temperature detection | |
| CN203396858U (en) | Sensor locating device for insulator electric field measurement | |
| CN102305667A (en) | Device for monitoring temperature of outdoor high-voltage switch through bus and implementation method of device | |
| CN201667558U (en) | On-line monitoring device for outdoor high-voltage switch temperature | |
| CN208520500U (en) | A kind of 10kV cable intermediate joint core temperature monitoring device based on temperature retrieval | |
| Pavlinic et al. | Direct monitoring methods of overhead line conductor temperature | |
| CN103557959A (en) | Fiber grating temperature sensor probe | |
| CN108801502A (en) | A kind of 10kV cable intermediate joint core temperature monitoring devices based on temperature retrieval | |
| CN104236741A (en) | Temperature monitoring device and implementation method for outdoor high-pressure switch | |
| CN104391168A (en) | System and method for inspecting grounding current of accessories of single-core cable having voltage grade above 35kV | |
| CN204269234U (en) | A kind of temperature measurement on-line device for high-voltage switch cabinet of transformer substation | |
| CN103822668A (en) | Optical fiber Bragg optical grating low-temperature sensor for simultaneously measuring strain and temperature and application method thereof | |
| CN204479647U (en) | 35kV and above single core cable annex ground current cruising inspection system | |
| CN204007932U (en) | A kind of temperature of transformer winding device | |
| CN103868605A (en) | Electric power transmission temperature detection system | |
| CN203274937U (en) | High-voltage electrical-equipment passive interval type temperature monitoring device | |
| CN203069275U (en) | Power transmission temperature detection system | |
| CN203100929U (en) | Temperature measuring device based on probe type fiber grating | |
| CN206546212U (en) | A kind of voltage transformer wireless thermometric positioner | |
| CN203672508U (en) | Distribution transformer wireless temperature measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |