CN211979065U - Cable aging detection system - Google Patents
Cable aging detection system Download PDFInfo
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- CN211979065U CN211979065U CN201922089983.1U CN201922089983U CN211979065U CN 211979065 U CN211979065 U CN 211979065U CN 201922089983 U CN201922089983 U CN 201922089983U CN 211979065 U CN211979065 U CN 211979065U
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Abstract
The utility model provides an ageing detecting system of cable, it can be accurate judge whether the cable is ageing. It includes the controller, the cable temperature detection module is connected to the controller, its characterized in that: the environment temperature detection module and the cable current-carrying capacity detection module are respectively connected with the controller.
Description
Technical Field
The utility model relates to the technical field of cables, specifically be a cable aging detection system.
Background
With the continuous development of power grids in China, the application range of power cables is wider and wider, and the laying places of the power cables are different. When the cable is used in external environments such as humidity, high temperature, chemical corrosion and the like, the cable is easy to age, and therefore the aging condition of the cable needs to be monitored in real time. Among the prior art, chinese utility model patent No. 201821555739.9 discloses a cable temperature detection device, and it is respectively through setting up temperature sensor in cable joint's surface acquisition temperature signal and getting the maximum value, sends into temperature collection ware collection and operation with temperature signal again, judges the cable ageing condition. However, since it only detects the temperature at the cable joint, and the cable temperature is greatly affected by the ambient temperature and the current-carrying capacity of the cable, it is not accurate to judge the aging condition of the cable only by detecting the cable temperature.
SUMMERY OF THE UTILITY MODEL
Gather cable surface temperature and judge the unsafe problem of cable ageing to current cable temperature-detecting device, the utility model provides a cable ageing detecting system, it can be accurate judge whether the cable is ageing.
The technical scheme is as follows: the utility model provides a cable aging detection system, its includes the controller, the cable temperature detection module is connected to the controller, its characterized in that: the environment temperature detection module and the cable current-carrying capacity detection module are respectively connected with the controller;
it is further characterized in that:
the controller comprises a detection data unit and a data processing unit, the cable temperature detection module, the environment temperature detection module and the cable current-carrying capacity detection module are respectively connected with the detection data unit, and the detection data unit is connected with the data processing unit;
the cable temperature detection module comprises at least one acquisition module, the acquisition module comprises temperature sensors arranged at two ends of a cable or at a cable joint, and the temperature sensors are sequentially connected with an isolation amplification circuit and an A/D conversion circuit;
the environment temperature detection module comprises a detection environment temperature sensor for testing the external environment temperature, and the detection environment temperature sensor is sequentially connected with the isolation amplifying circuit and the A/D conversion circuit;
the cable current-carrying capacity detection module comprises an induction coil sleeved on a cable, and the induction coil is sequentially connected with a voltage sampling circuit and an A/D conversion circuit;
the controller is respectively connected with the display module, the communication module or the alarm module.
After having adopted such structure, measure cable temperature, ambient temperature and three data of cable current-carrying capacity respectively through cable temperature detection module, ambient temperature detection module and cable current-carrying capacity detection module to through controller contrastive analysis, thereby judge whether ageing, the analysis result is more accurate.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention;
FIG. 2 is a flow chart of the system control of the present invention;
in the figure: 1. an ambient temperature detection module; 2. a cable temperature detection module; 3. a cable current-carrying detection module; 4. a controller; 5. a power supply module; 6. a display module; 7. a communication module; 8. and an alarm module.
Detailed Description
As shown in fig. 1, a cable aging detection system includes a controller 4, where the controller 4 is connected to an ambient temperature detection module 1, a cable temperature detection module 2, a cable current-carrying detection module 3, a power supply module 5, a display module 6, a communication module 7, and an alarm module 8, respectively.
The environment temperature detection module 1 comprises a detection environment temperature sensor for detecting the external environment temperature, and the detection environment temperature sensor is sequentially connected with an isolation amplifying circuit and an A/D conversion circuit. The detection environment temperature sensor collects environment temperature information and sends the information to the isolation amplifying circuit, the information is sent to the A/D converting circuit after isolation amplification, and the A/D converting circuit converts the information into digital signals and sends the digital signals to the controller 4.
The cable temperature detection module 2 comprises at least one acquisition module for detecting the temperature of the cable, the acquisition modules are respectively arranged at two ends of the cable or a joint of the cable, and each acquisition module corresponds to one acquisition point. The acquisition module respectively includes 1 st temperature sensor to nth sensor, and N is positive number, and 1 st temperature sensor to nth sensor connect isolation amplifier circuit and AD converting circuit respectively in order. The 1 st temperature sensor to the Nth sensor acquire temperature information of the cable and send the temperature information to the isolation amplifying circuit, the temperature information is sent to the A/D converting circuit after isolation amplifying, and the A/D converting circuit converts the temperature information into digital signals and sends the digital signals to the controller 4.
The cable current-carrying capacity detection module 3 comprises an induction coil sleeved outside the cable, and the induction coil is sequentially connected with a voltage sampling circuit and an A/D conversion circuit. The induction coil detects the current-carrying capacity information of the cable and sends the information to the voltage sampling circuit to be converted into a voltage signal, and the voltage signal is converted into a digital signal through the A/D conversion circuit and then sent to the controller 4.
The controller 4 comprises a detection data unit and a data processing unit, wherein the detection data unit respectively receives the measurement information of the environment temperature detection module 1, the cable temperature detection module 2 and the cable current-carrying capacity detection module 3. The data processing unit calculates a theoretical upper limit value of the cable temperature through an empirical formula calculation method, a table look-up method or a fuzzy control algorithm according to the detected environment temperature information and the cable current-carrying capacity information, compares the upper limit value with the actually measured cable temperature (the maximum value is taken if a plurality of collecting points exist), and indicates that the cable normally runs if the actually measured cable temperature is not greater than the theoretical upper limit value; otherwise, the cable is abnormal, and the cable abnormal alarm information is sent out.
The controller 4 is also respectively connected with a power module 5, a display module 6, a communication module 7 or an alarm module 8. The power module 5 supplies power to the whole test system. The detected information of the environmental temperature, the cable current-carrying capacity, whether the cable is abnormal and the like can be directly displayed through the display module 6, and the information can also be sent to other networks or terminals through the communication module 7. The abnormal information of the cable can also send out sound and light alarm through the alarm module 8, thereby informing maintenance personnel to carry out maintenance.
As shown in fig. 2, the system control flow chart of the present invention is that when the system is started, the system first performs self-checking and initialization. After the system initialization is finished, reading the environmental temperature, the cable temperature and the cable current-carrying capacity data in the A/D circuit according to a set period and an address reading sequence; the controller 4 maximizes the collected temperature data of the plurality of cables; the controller 4 obtains three data of the actually measured environment temperature, the actually measured cable current-carrying capacity and the actually measured cable temperature, sends the three data to the display module 6 for output and display, and sends the three data to other networks or terminals through the communication module 7; the controller 4 calculates the theoretical upper limit value of the temperature of the cable according to the set calculation rule for the collected environmental temperature and the collected cable current-carrying capacity data; the controller 4 compares the measured cable temperature with the theoretical upper limit value of the cable temperature to judge whether the cable is abnormal; and if the cable returns normally, data acquisition is carried out again, and if the cable is abnormal, abnormal alarm information is output to the display module 6, the communication module 7 and the alarm module 8, and the cable is operated again after waiting for the treatment of maintenance personnel.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a cable aging detection system, its includes the controller, the cable temperature detection module is connected to the controller, its characterized in that: the environment temperature detection module and the cable current-carrying capacity detection module are respectively in electric control connection with the controller.
2. The cable degradation detection system of claim 1, wherein: the controller comprises a detection data unit and a data processing unit, the cable temperature detection module, the environment temperature detection module and the cable current-carrying capacity detection module are respectively connected with the detection data unit, and the detection data unit is connected with the data processing unit.
3. A cable degradation detection system as claimed in claim 2, wherein: the cable temperature detection module comprises at least one acquisition module, the acquisition module comprises temperature sensors arranged at two ends of a cable or at a cable joint, and the temperature sensors are sequentially connected with an isolation amplifying circuit and an A/D conversion circuit.
4. A cable degradation detection system as claimed in claim 3, wherein: the environment temperature detection module comprises a detection environment temperature sensor for testing the external environment temperature, and the detection environment temperature sensor is sequentially connected with the isolation amplifying circuit and the A/D conversion circuit.
5. The cable degradation detection system of claim 4, wherein: the cable current-carrying capacity detection module comprises an induction coil sleeved on a cable, and the induction coil is sequentially connected with a voltage sampling circuit and an A/D conversion circuit.
6. The cable degradation detection system of claim 5, wherein: the controller is respectively connected with the display module, the communication module or the alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089983.1U CN211979065U (en) | 2019-11-28 | 2019-11-28 | Cable aging detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089983.1U CN211979065U (en) | 2019-11-28 | 2019-11-28 | Cable aging detection system |
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| Publication Number | Publication Date |
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| CN211979065U true CN211979065U (en) | 2020-11-20 |
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| CN201922089983.1U Active CN211979065U (en) | 2019-11-28 | 2019-11-28 | Cable aging detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295546A (en) * | 2021-05-10 | 2021-08-24 | 武汉精测电子集团股份有限公司 | FPC microcircuit bending damage degree verification method and device and electronic equipment |
| CN114152644A (en) * | 2021-12-01 | 2022-03-08 | 国网江苏省电力有限公司盐城供电分公司 | Fireproof coating detection system for cable |
-
2019
- 2019-11-28 CN CN201922089983.1U patent/CN211979065U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295546A (en) * | 2021-05-10 | 2021-08-24 | 武汉精测电子集团股份有限公司 | FPC microcircuit bending damage degree verification method and device and electronic equipment |
| CN114152644A (en) * | 2021-12-01 | 2022-03-08 | 国网江苏省电力有限公司盐城供电分公司 | Fireproof coating detection system for cable |
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| TR01 | Transfer of patent right |
Effective date of registration: 20211130 Address after: F10, China Sensor Network International Innovation Park, 200 Linghu Avenue, New District, Wuxi City, Jiangsu Province, 214000 Patentee after: Jiangsu Hao Hua transmission control Limited by Share Ltd. Address before: New District Wuxi city Jiangsu province 214028 Xi Road No. 8 Patentee before: WUXI PROFESSIONAL College OF SCIENCE AND TECHNOLOGY |