CN208432662U - Device is surveyed when cable connector resistance - Google Patents
Device is surveyed when cable connector resistance Download PDFInfo
- Publication number
- CN208432662U CN208432662U CN201821205952.7U CN201821205952U CN208432662U CN 208432662 U CN208432662 U CN 208432662U CN 201821205952 U CN201821205952 U CN 201821205952U CN 208432662 U CN208432662 U CN 208432662U
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- survey
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- cable connector
- acquisition module
- cable
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- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 8
- 230000006698 induction Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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Abstract
Device is surveyed when a kind of cable connector resistance, including when survey acquisition module unit and when survey monitoring host computer and anchor ear, when survey acquisition module unit and be made of temperature-sensitive patch, miniature Current Mutual Inductance module, mutual induction of voltage module, clock acquisition module, processing unit, wireless transport module, be attached in the form of package on the outside of cable connector；When survey monitoring host computer and be made of display unit, embedded software algorithm, output alarm unit, wireless transport module, MCU；Device by it is several when survey acquisition module unit and form, be mounted on several connectors an of cable or the cable connector of different cables on.The present apparatus can in electrification test cable connector resistance, can monitor the variation of multiple temperature of cable junction simultaneously；When survey acquisition module unit, survey monitoring host computer when being transferred to by the way of wireless transmission, when survey monitoring host computer and analyzed by embedded software and record temperature of cable junction and change, real-time display records each connection resistance value in real time, and analyses whether to alarm.
Description
Technical field
The utility model relates to a kind of power measurement technology, more particularly to be a kind of measurement 10kV, 35kV band
The test device of the resistance of electricity condition lower cable connector.
Background technique
In the power supply system of various regions, more and more routes have been changed to the mode of buried cable, more and more
Using power cable power transmission and distribution.Usually to occur cable connector, the operating experience of many years on the line when power supply distance is longer
The cable operation fault for showing 90 % or more is caused by joint fault.By further analysis shows, contact resistance,
The factors such as overload are to cause connector temperature excessively high, cause insulation ag(e)ing at cable connector or collapse the main reason for burning failure.
Multiple field test proves that connector temperature is the major parameter for reflecting joint quality, when junction contacts resistance increases,
Connector temperature also necessarily increases.And the higher temperature of long-time, and will lead to joint insulation ag(e)ing.It is existing in the reality of electric power
, temperature of cable junction is generally measured using the method for infrared measurement of temperature, then power failure test splice resistance, thus will certainly
Increase frequency of power cut, influences power supply system normal work.
Summary of the invention
The purpose of this utility model is: survey device when designing a kind of cable connector resistance, including when survey acquisition module unit
With when survey monitoring host computer two parts, can monitor the variation of multiple temperature of cable junction simultaneously, real-time display, record respectively connects in real time
Head contact resistance resistance value, the modular system with comprehensive analysis warning function can timely and accurately understand electricity convenient for Field Force
Cable operating condition is effectively prevented from the generation of cable connector accident, it is ensured that power transmission safety reduces frequency of power cut, improves economic effect
Benefit.
Realize the utility model aim adopted the technical scheme that: when it includes survey acquisition module unit and when survey monitor
Host and anchor ear, when survey acquisition module unit by temperature-sensitive patch, miniature Current Mutual Inductance module, mutual induction of voltage module, clock acquisition
Module, processing unit, wireless transport module composition, are mounted in anchor ear, are attached on the outside of cable connector in the form of package；When
Monitoring host computer is surveyed to be made of display unit, embedded software algorithm, output alarm unit, wireless transport module, MCU；Package unit,
By it is several when survey acquisition module unit and form, be mounted on several connectors an of cable or the cable connector of different cables on.
The good effect of the utility model is: the present apparatus applies 10kV, 35kV line cord in Operation of Electric Systems,
Can under cable operating condition test cable connector contact resistance resistance value, can monitor that multiple temperature of cable junction become simultaneously
Change；When survey acquisition module unit, be close to cable connector carry out data acquisition, acquisition data be voltage, electric current and temperature, using nothing
The mode of line transmission surveys monitoring host computer when being transferred to, when survey monitoring host computer and analyzed by embedded software and record temperature of cable junction
Variation, real-time display record each junction contacts resistance value in real time, and analyse whether to alarm；It can be timely convenient for Field Force
Accurately understand cable operating condition, be effectively prevented from the generation of cable connector accident, it is ensured that power transmission safety.
Detailed description of the invention
Attached drawing 1 is scheme of installation of the utility model at cable connector；Attached drawing 2 is the sectional view along A-A of attached drawing 1；
Attached drawing 3 is the control principle block diagram of the utility model.
Specific embodiment
Surveyed when the utility model includes acquisition module unit 6 and when survey monitoring host computer 7 and anchor ear 4, when survey acquisition module list
Member 1 is by temperature-sensitive patch, miniature Current Mutual Inductance module, mutual induction of voltage module, clock acquisition module, processing unit, wireless transmission mould
Block composition, be mounted in anchor ear 4, anchor ear 4 be c-type anchor ear, have a ridge-roof type region 1 above, be built-in with temperature-sensitive patch with
Wireless transport module, it is corresponding below there is rectangular area 5 to wrap up using insulating materials epoxy resin, be built-in with miniature
Current Mutual Inductance module, mutual induction of voltage module, clock acquisition module, processing unit, the arch section of c-type anchor ear are cavity, each member
The arch section that connecting wire between part can pass through c-type anchor ear is attached；Entire anchor ear is attached in the form wrapped up
On the outside of cable connector (as shown in attached drawing 1,2), after anchor ear 4 is stuck at cable connector 2, the opening of c-type anchor ear is closed；When survey prison
Control host is made of display unit, embedded software algorithm, output alarm unit, wireless transport module, MCU；Package unit, by counting
Acquisition module unit composition is surveyed when a, is mounted on several connectors an of cable 3 or on the cable connector of different cables.
In the temperature-sensitive patch built in ridge-roof type region 1, can directly contact to obtain sample temperature from cable connector
Data；In 5 built-in miniature Current Mutual Inductance module of rectangular area, the electric current number of cable connector can be obtained using discontiguous mode
According to；Built-in voltage mutual inductance module carries out the voltage data acquisition of cable connector, acquires design using Double Data here, often
Mutual voltage acquisition and the acquisition of cable connector voltage change data are advised, to accurately obtain the voltage data of cable connector variation；
Clock acquisition module at regular intervals, just drives each data acquisition module sampling to obtain data；The data that sampling obtains are sent into
Processing unit surveys monitoring host computer when processing unit is sent in a manner of wireless transmission.Acquisition module unit is surveyed when this is single
Composition, package unit, by it is several when survey acquisition module unit 6 form, may be mounted at several connectors an of cable 3,
It can be installed on the cable connector of different cables, to form system, each cable connector is sampled.
When survey monitoring host computer 7 by wireless transport module, MCU, embedded software algorithm, output alarm unit, display unit group
At then numerous data that survey acquisition module unit 6 is sent when it receives each by wireless transport module pass through embedded software
Algorithm is calculated, and software uses following algorithm to resistance, sets the fixed coefficient multiple A of resistance as fixed numbers, resistance
It is closely related with variation coefficient multiple and direct ratio, the calculation method of variation coefficient obtains for B:(TX-T) I2x0/ (TX0-T0) I2x
It arrives, wherein Ix0, Tx0, T0, R0 is to install initial measured value, then resistance R=A*B*R0 is obtained by calculation, the write-in of this algorithm
Software calculates data result after carrying out various data processings by MCU operation, is sent to display unit and displays data, or
Alarm unit is directly output to alarm.
Claims (1)
1. surveying device when a kind of cable connector resistance, it is characterised in that: when it includes survey acquisition module unit and when survey monitoring master
Machine and anchor ear, when survey acquisition module unit by temperature-sensitive patch, miniature Current Mutual Inductance module, mutual induction of voltage module, clock acquisition mould
Block, processing unit, wireless transport module composition, are mounted in anchor ear, are attached on the outside of cable connector in the form of package；When survey
Monitoring host computer is made of display unit, embedded software algorithm, output alarm unit, wireless transport module, MCU；Package unit, by
Acquisition module unit composition is surveyed when several, is mounted on several connectors an of cable or on the cable connector of different cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821205952.7U CN208432662U (en) | 2018-07-27 | 2018-07-27 | Device is surveyed when cable connector resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821205952.7U CN208432662U (en) | 2018-07-27 | 2018-07-27 | Device is surveyed when cable connector resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208432662U true CN208432662U (en) | 2019-01-25 |
Family
ID=65097757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821205952.7U Expired - Fee Related CN208432662U (en) | 2018-07-27 | 2018-07-27 | Device is surveyed when cable connector resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208432662U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567526A (en) * | 2019-09-16 | 2019-12-13 | 国网河北省电力有限公司电力科学研究院 | Cable lead sealing accessory comprehensive detection device and detection method |
| CN112834073A (en) * | 2019-11-08 | 2021-05-25 | 李志鹏 | Temperature real-time monitoring device, method and system |
| CN113203917A (en) * | 2021-04-25 | 2021-08-03 | 国网河南省电力公司平顶山供电公司 | Method for pre-judging heating defect of diversion loop of reactive power compensation device |
| CN114114086A (en) * | 2021-11-19 | 2022-03-01 | 贵州电网有限责任公司 | Cable connector wireless resistance temperature correlation testing device and using method thereof |
-
2018
- 2018-07-27 CN CN201821205952.7U patent/CN208432662U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567526A (en) * | 2019-09-16 | 2019-12-13 | 国网河北省电力有限公司电力科学研究院 | Cable lead sealing accessory comprehensive detection device and detection method |
| CN112834073A (en) * | 2019-11-08 | 2021-05-25 | 李志鹏 | Temperature real-time monitoring device, method and system |
| CN113203917A (en) * | 2021-04-25 | 2021-08-03 | 国网河南省电力公司平顶山供电公司 | Method for pre-judging heating defect of diversion loop of reactive power compensation device |
| CN114114086A (en) * | 2021-11-19 | 2022-03-01 | 贵州电网有限责任公司 | Cable connector wireless resistance temperature correlation testing device and using method thereof |
| CN114114086B (en) * | 2021-11-19 | 2024-03-22 | 贵州电网有限责任公司 | Cable joint wireless resistance temperature correlation testing device and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |