CN203299330U - Underground cable monitoring device - Google Patents
Underground cable monitoring device Download PDFInfo
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- CN203299330U CN203299330U CN2013203108057U CN201320310805U CN203299330U CN 203299330 U CN203299330 U CN 203299330U CN 2013203108057 U CN2013203108057 U CN 2013203108057U CN 201320310805 U CN201320310805 U CN 201320310805U CN 203299330 U CN203299330 U CN 203299330U
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Abstract
The utility model provides an underground cable monitoring device comprises a leakage communication cable, cable detection modules and relay control modules, wherein the cable detection modules are used for detecting partial discharge information and operation information of an underground cable and field intensity information and corresponding position information around the underground cable, the relay control modules are used for amplifying communication signals of the leakage communication cable, carrying out logical analysis according to information output by the cable detection modules and uploading the information output by the cable detection modules to a terminal server, and the leakage communication cable is connected with the cable detection modules in a wireless mode and is connected with the relay control modules in a wired mode. The scheme solves the problem of signal transmission in the power cable monitoring industry, does not affect the communication quality and can conveniently and accurately realize fault judgment and fault point location on the underground cable so as to ensure safe, stable and reliable operation of a whole power system.
Description
Technical field
The utility model relates to the mechanics of communication of electric power cable, relates in particular to a kind of monitoring device of underground cable.
Background technology
Along with the fast development of China's urban economy, increasing electric power cable is arranged in the mode of underground cable.The mechanics of communication of existing electric power cable is generally the mode that adopts based on wire transmission, namely adopts the signal cable of laying a special use along the underground cables ditch, and the monitoring instrument that is distributed in underground cable inside adopts wired mode to be connected on signal cable.Although this mode has guaranteed the stable of communication quality, but the increase along with monitoring node, the branched line that is connected to signal cable is more and more, the more important thing is, part of nodes equipment need to be connected on power cable to gather the data such as cable temperature, but there is hidden danger in this wired transmission mode insulation safety aspect.
Another kind is exactly the mode of wireless telecommunications that all adopts, but in enclosure space (basement, tunnel etc.), due to each face close proximity of space, the wall of wall, basement, ground, ceiling have absorption, the attenuation of strong row to electromagnetic wave, therefore can not be as free space, propagating at electromagnetic wave in enclosure space.Therefore adopt the mode of wireless telecommunications to exist communication distance in the cable ditch of underground sealed and greatly shorten, thus the problem of the communication quality that exerts an influence.
In addition; existing cable fault discriminating gear; only after breaking down and causing ring main unit protection action; the field maintemance personnel adopt cable detector; flash tester, cable tracer and fault locating instrument etc. go to scene to remove the looking up the fault point along circuit, but owing to across surface dust, surveying; the problems such as looking up the fault point exists the detection degree of accuracy inadequate, and the looking up the fault time is long.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, thereby a kind of monitoring device of underground cable is provided, and the data that can will detect are carried out complete and transmission exactly.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
The utility model provides a kind of monitoring device of underground cable, described monitoring device comprises the leakage current communication cable, for detection of the cable detection module of the field intensity information of the shelf depreciation information of underground cable, operation information, underground cable periphery and relevant position information and for the communication signal to the leakage current communication cable, amplifies processing, according to the information of cable detection module output, carries out logic analysis and the information of cable detection module output is uploaded to the relay and control module of terminal server;
Described leakage current communication cable and the wireless connections of cable monitoring module, with relay and control module wired connection.。
further, described cable detection module comprises the wireless transmit/receive units with the communication of described leakage current communication cable, surface temperature for detection of underground cable exports the temperature sensor of wireless transmit/receive units to determine operation information the temperature value that will detect and corresponding positional information, for detection of the positional information of underground cable periphery field intensity the field intensity value that will detect and correspondence, export the field strength sensor of wireless transmit/receive units to, and detect for the high-frequency signal to underground cable sheath, conditioning, analysis and processing deal with data and corresponding positional information export the fault-signal judgement unit of wireless transmit/receive units to,
Described wireless transmit/receive units is electrically connected to temperature sensor, field strength sensor and fault-signal judgement unit respectively.
Further, described fault-signal judgement unit comprises the film metal electrode inductor that detects for the high-frequency signal to underground cable sheath, for the signal condition unit that the high-frequency signal that detects is nursed one's health, for the signal to after conditioning, analyze to determine the signal analysis unit of partial discharges fault point, for the data to after analyzing, carry out and the positional information of described film metal electrode inductor is exported to the signal processing unit of wireless transmit/receive units;
Described signal processing unit is electrically connected to signal analysis unit and described wireless transmit/receive units respectively, and described signal condition unit is electrically connected to described signal analysis unit and film metal electrode inductor respectively.
Further, described cable detection module also comprises that described level sensor is electrically connected to wireless transmit/receive units for detection of the level sensor of underground cable place environment middle water level height.
Further, described cable detection module also comprises that described Temperature Humidity Sensor is electrically connected to wireless transmit/receive units for detection of the Temperature Humidity Sensor of humiture in the environment of underground cable place.
Further, described cable detection module also comprises that described gas sensor is electrically connected to wireless transmit/receive units for detection of the gas sensor of harmful gas concentration in the environment of underground cable place.
Further, described monitoring device comprises at least two relay and control modules, between every two relay and control modules, by described leakage current communication cable, is electrically connected to.
Further, described relay and control module is positioned at ring main unit.
Compared with prior art, the utlity model has following beneficial effect: by the leakage current communication cable as the cable detection module of underground cable and the communication tool between the relay and control module, solved the problem of signal transmission in power cable monitoring industry, can not affect communication quality, adopt simultaneously the monitoring device of this kind mode, can be easily and accurately realize the fault of underground cable is differentiated to the location with trouble spot, thus can guarantee that whole power system safety and stability moves reliably.
The accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of embodiment of monitoring device of the utility model underground cable;
Fig. 2 is the structured flowchart of a kind of embodiment of the utility model cable detection module;
Fig. 3 is the structured flowchart of a kind of embodiment of the utility model fault-signal judgement unit.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
in description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " liquid is flat ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
The utility model provides a kind of monitoring device of embodiment underground cable, as shown in Figure 1, described monitoring device comprises leakage current communication cable 1, for detection of the cable detection module 2 of the field intensity information of the shelf depreciation information of underground cable, operation information, underground cable periphery and relevant position information and for the communication signal to the leakage current communication cable, amplifies processing, according to the information of cable detection module output, carries out logic analysis and the information of cable detection module output is uploaded to the relay and control module 3 of terminal server;
Described leakage current communication cable 1 and 2 wireless connections of cable monitoring module, with relay and control module 3 wired connections.
From such scheme, can find out, by leakage current communication cable 1 as the cable detection module 2 of underground cable and the communication tool between relay and control module 3, solved the problem of signal transmission in power cable monitoring industry, can not affect communication quality, adopt simultaneously the monitoring device of this kind mode, can be easily and accurately realize the fault of underground cable is differentiated to the location with trouble spot, thus can guarantee that whole power system safety and stability moves reliably.
in an embodiment of the present utility model, as shown in Figure 2, described cable detection module 2 comprises and described leakage current communication cable electricity 1 wireless transmit/receive units that is connected 21, surface temperature for detection of underground cable exports the temperature sensor 22 of wireless transmit/receive units 21 to determine operation information the temperature value that will detect and corresponding positional information, for detection of the positional information of underground cable periphery field intensity the field intensity value that will detect and correspondence, export the field strength sensor 23 of wireless transmit/receive units 21 to, and gather for detection of the high-frequency signal of underground cable sheath, conditioning, analysis and processing deal with data and corresponding positional information export the fault-signal judgement unit 24 of wireless transmit/receive units 21 to, described wireless transmit/receive units 21 is electrically connected to temperature sensor 22, field strength sensor 23 and fault-signal judgement unit 24 respectively.in concrete enforcement, as shown in Figure 3, described fault-signal judgement unit 24 comprises the film metal electrode inductor 241 that detects for the high-frequency signal to underground cable sheath, for the signal condition unit 242 that the high-frequency signal that detects is nursed one's health, for the signal to after conditioning, analyze to determine the signal analysis unit 243 of partial discharges fault point, for the data to after analyzing, carry out and the positional information of described film metal electrode inductor 241 exported to the signal processing unit 244 of wireless transmit/receive units 21, described signal processing unit 244 is electrically connected to signal analysis unit 243 and described wireless transmit/receive units 21 respectively, described signal condition unit 242 is electrically connected to described signal analysis unit 243 and film metal electrode inductor 241 respectively, that is to say, concrete detection for the shelf depreciation situation of underground cable is: the signal frequency that at first is coupled into a 100MHz-500MHz by 3 pairs of current transformers of relay and control module, then the sheath by 241 pairs of cables of film metal electrode inductor detects from the high-frequency signal that is coupled to current transformer in ring main unit, then detection signal is nursed one's health, after analyzing, find out the trouble spot of shelf depreciation, after processing fault data, the positional information of data and sensor is sent to described wireless transmit/receive units 21.Certain described fault-signal judgement unit 24 also comprises power supply unit 245, and for giving described signal processing unit 244 power supplies, described power supply unit 245 and signal processing unit 244 are electrically connected to.
In an embodiment of the present utility model, as shown in Figure 2, described cable detection module also comprises the level sensor 25 for detection of underground cable place environment middle water level height, Temperature Humidity Sensor 26 for detection of humiture in the environment of underground cable place, and described cable detection module also comprises that described level sensor 25, Temperature Humidity Sensor 26 and gas sensor 27 are electrically connected to wireless transmit/receive units 21 respectively for detection of the gas sensor 27 of harmful gas concentration in the environment of underground cable place.be the height of water level data that level sensor 25 detects, the humiture data that Temperature Humidity Sensor 26 detects all transfer to relay and control module 3 by wireless transmit/receive units 21 with the leakage current communication cable 1 that is connected with wireless transmit/receive units 21 with the harmful gas concentration data that gas sensor 27 detects, follow the detection data that relay and control module 3 reports according to respective sensor, different type of cables and parameter value, according to the operating experience data analysis, result is packed, by the standard power communications protocol, data are connected to terminal server, so that the maintainer can take corresponding safeguard measure according to data.
In an embodiment of the present utility model, as shown in Figure 1, described monitoring device comprises at least two relay and control modules 3, between every two relay and control modules 3, by described leakage current communication cable 1, is electrically connected to.Described relay and control module 3 is positioned at ring main unit.Relay and control module 3 is mainly used in the data that various sensors are reported and carries out logic analysis, and communication protocol is changed with the communication of leakage current communication cable 1 and played relaying action, the detection that logic analysis mainly reports according to respective sensor, different type of cables and parameter value, according to the operating experience data analysis, by the result packing, then by the standard power communications protocol, data are connected to terminal server.Relay and control module 3 is responsible for the communication driving force of leakage current communication cable is further strengthened in addition, and a plurality of data of monitoring point of each section from a ring main unit to another ring main unit are forwarded, assurance will reach tens even the data of hundreds of kilometer can be processed like clockwork.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. the monitoring device of a underground cable, it is characterized in that: described monitoring device comprises the leakage current communication cable, for detection of the cable detection module of the field intensity information of the shelf depreciation information of underground cable, operation information, underground cable periphery and relevant position information and for the communication signal to the leakage current communication cable, amplifies processing, according to the information of cable detection module output, carries out logic analysis and the information of cable detection module output is uploaded to the relay and control module of terminal server;
Described leakage current communication cable and the wireless connections of cable monitoring module, with relay and control module wired connection.
2. monitoring device as claimed in claim 1, it is characterized in that: described cable detection module comprises the wireless transmit/receive units with the communication of described leakage current communication cable, surface temperature for detection of underground cable exports the temperature sensor of wireless transmit/receive units to determine operation information the temperature value that will detect and corresponding positional information, for detection of the positional information of underground cable periphery field intensity the field intensity value that will detect and correspondence, export the field strength sensor of wireless transmit/receive units to, and detect for the high-frequency signal to underground cable sheath, conditioning, analysis and processing deal with data and corresponding positional information export the fault-signal judgement unit of wireless transmit/receive units to,
Described wireless transmit/receive units is electrically connected to temperature sensor, field strength sensor and fault-signal judgement unit respectively.
3. monitoring device as claimed in claim 2, it is characterized in that: described fault-signal judgement unit comprises the film metal electrode inductor that detects for the high-frequency signal to underground cable sheath, for the signal condition unit that the high-frequency signal that detects is nursed one's health, for the signal to after conditioning, analyze to determine the signal analysis unit of partial discharges fault point, for the data to after analyzing, carry out and the positional information of described film metal electrode inductor is exported to the signal processing unit of wireless transmit/receive units;
Described signal processing unit is electrically connected to signal analysis unit and described wireless transmit/receive units respectively, and described signal condition unit is electrically connected to described signal analysis unit and film metal electrode inductor respectively.
4. monitoring device as claimed in claim 2, it is characterized in that: described cable detection module also comprises that described level sensor is electrically connected to wireless transmit/receive units for detection of the level sensor of underground cable place environment middle water level height.
5. monitoring device as claimed in claim 2, it is characterized in that: described cable detection module also comprises that described Temperature Humidity Sensor is electrically connected to wireless transmit/receive units for detection of the Temperature Humidity Sensor of humiture in the environment of underground cable place.
6. monitoring device as claimed in claim 2, it is characterized in that: described cable detection module also comprises that described gas sensor is electrically connected to wireless transmit/receive units for detection of the gas sensor of harmful gas concentration in the environment of underground cable place.
7. as the described monitoring device of claim 1-6 any one, it is characterized in that: described monitoring device comprises at least two relay and control modules, between every two relay and control modules, by described leakage current communication cable, is electrically connected to.
8. monitoring device as claimed in claim 1, it is characterized in that: described relay and control module is positioned at ring main unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013203108057U CN203299330U (en) | 2013-05-31 | 2013-05-31 | Underground cable monitoring device |
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| CN2013203108057U CN203299330U (en) | 2013-05-31 | 2013-05-31 | Underground cable monitoring device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678257A (en) * | 2015-02-08 | 2015-06-03 | 云南酷联科技有限公司 | Method for positioning faults of high voltage single-core cable protective layer accurately |
| CN105158648A (en) * | 2015-10-13 | 2015-12-16 | 西安宝世电力技术有限公司 | High-voltage cable fault early warning method based on intelligent olfaction |
| CN105353266A (en) * | 2015-09-28 | 2016-02-24 | 国网山东省电力公司济南供电公司 | Underground cable fault monitoring system and underground cable fault monitoring method |
| CN103852413B (en) * | 2014-03-06 | 2016-05-04 | 中国民航大学 | A kind of airfield aid isolating transformer water erosion monitoring system and control method |
| CN107356842A (en) * | 2017-08-31 | 2017-11-17 | 苏州麦喆思科电子有限公司 | A kind of buried cable failure detector |
| CN107991560A (en) * | 2017-11-27 | 2018-05-04 | 福建中电合创电力科技有限公司 | A kind of monitoring method of buried cable |
| CN108693445A (en) * | 2018-05-23 | 2018-10-23 | 广东电网有限责任公司 | Power transmission cable Fault Locating Method and device |
| CN109490703A (en) * | 2018-05-17 | 2019-03-19 | 袁茂银 | A kind of sensor-based buried cable detection system |
| CN111551970A (en) * | 2020-05-13 | 2020-08-18 | 广东电网有限责任公司广州供电局 | Device and method for preventing power failure fault of cable line caused by construction operation |
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2013
- 2013-05-31 CN CN2013203108057U patent/CN203299330U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852413B (en) * | 2014-03-06 | 2016-05-04 | 中国民航大学 | A kind of airfield aid isolating transformer water erosion monitoring system and control method |
| CN104678257A (en) * | 2015-02-08 | 2015-06-03 | 云南酷联科技有限公司 | Method for positioning faults of high voltage single-core cable protective layer accurately |
| CN104678257B (en) * | 2015-02-08 | 2017-07-11 | 云南酷联科技有限公司 | A kind of pinpoint method of high voltage single-core cable protective layer failure |
| CN105353266B (en) * | 2015-09-28 | 2018-08-07 | 国网山东省电力公司济南供电公司 | A kind of cable fault monitoring method using buried cable fault monitoring system |
| CN105353266A (en) * | 2015-09-28 | 2016-02-24 | 国网山东省电力公司济南供电公司 | Underground cable fault monitoring system and underground cable fault monitoring method |
| CN105158648B (en) * | 2015-10-13 | 2019-02-22 | 西安宝世电力技术有限公司 | High-tension cable fault early warning method based on intelligent smell |
| CN105158648A (en) * | 2015-10-13 | 2015-12-16 | 西安宝世电力技术有限公司 | High-voltage cable fault early warning method based on intelligent olfaction |
| CN107356842A (en) * | 2017-08-31 | 2017-11-17 | 苏州麦喆思科电子有限公司 | A kind of buried cable failure detector |
| CN107991560A (en) * | 2017-11-27 | 2018-05-04 | 福建中电合创电力科技有限公司 | A kind of monitoring method of buried cable |
| CN107991560B (en) * | 2017-11-27 | 2019-12-27 | 福建中电合创电力科技有限公司 | Underground cable monitoring method |
| CN109490703A (en) * | 2018-05-17 | 2019-03-19 | 袁茂银 | A kind of sensor-based buried cable detection system |
| CN108693445A (en) * | 2018-05-23 | 2018-10-23 | 广东电网有限责任公司 | Power transmission cable Fault Locating Method and device |
| CN111551970A (en) * | 2020-05-13 | 2020-08-18 | 广东电网有限责任公司广州供电局 | Device and method for preventing power failure fault of cable line caused by construction operation |
| CN111551970B (en) * | 2020-05-13 | 2022-08-12 | 广东电网有限责任公司广州供电局 | Device and method for preventing power failure fault of cable line caused by construction operation |
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