CN203337270U - Cable temperature measuring system - Google Patents
Cable temperature measuring system Download PDFInfo
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- CN203337270U CN203337270U CN2013203681212U CN201320368121U CN203337270U CN 203337270 U CN203337270 U CN 203337270U CN 2013203681212 U CN2013203681212 U CN 2013203681212U CN 201320368121 U CN201320368121 U CN 201320368121U CN 203337270 U CN203337270 U CN 203337270U
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- cable
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- optical fiber
- temperature
- temperature measuring
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Abstract
A cable temperature measurement system comprising: the system comprises an optical fiber, a cable, a current transformer, an optical fiber temperature measuring host, a cable operation analysis host and a data acquisition and monitoring device; the optical fiber is laid in the cable, one end of the optical fiber is connected with the optical fiber temperature measuring host, and the temperature of the surface layer or the insulating layer of the cable is detected through the optical fiber temperature measuring host; the optical fiber temperature measurement host is connected with the cable operation analysis host; a current transformer is arranged on the periphery of the cable, and the current transformer collects the current-carrying capacity of the cable and transmits the current-carrying capacity to a cable operation analysis host; the data acquisition and monitoring device is respectively connected with the cable operation analysis host and the cable. Therefore, the operation temperature of the cable can be accurately mastered in real time, the transmission current of the cable can be controlled according to the operation temperature of the cable, and the transmission capacity of the cable can be fully exerted; the cable operation defect related to heat can be found in time, and an early warning signal is sent out, so that the safe operation of the cable is ensured.
Description
Technical field
The utility model relates to the technical field of cable, is specifically a kind ofly can measure the go forward side by side cable temperature measuring system of trip temperature early warning of cable insulation temperature.
Background technology
Great-leap-forward development along with Chinese national economy, every profession and trade and the also sharp increase of residential electricity consumption demand, for bringing into play to greatest extent the power supply capacity of existing power cable, make the economic operation cost of power supply enterprise reach optimization, in the urgent need to grasping at any time power cable ruuning situation, in order to guaranteeing under the prerequisite of power supply safety, farthest excavate the power supply capacity of existing power cable.In addition, cable lay environment and there is very big-difference in mode, the temperature rise along the line of whole piece cable is different, the key that affects current-carrying capacity of cable is the temperature bottleneck of cable, finds and solve the current-carrying capacity that the temperature bottleneck can improve the whole piece cable greatly.Have the relevant report that the distributed optical fiber temperature measurement technology is applied to the cable temperature on-line monitoring both at home and abroad, but adopt is laid in by optical fiber the monitoring that cable surface carries out cable operating temperature more, not only difficulty of construction is large, and measurement data is subject to extraneous factor impact, affects measuring accuracy.
The utility model content
The technical problems to be solved in the utility model is to provide a kind ofly can measure the go forward side by side cable temperature measuring system of trip temperature early warning of cable insulation temperature.
The technical scheme that the utility model is taked for the technical matters existed in the solution known technology is:
Cable temperature measuring system of the present utility model comprises: optical fiber, cable, current transformer, optical-fiber temperature measuring main frame, cable operating analysis main frame and data acquisition and monitoring device; Optical fiber be laid in cable inner and with the cable laying of going the same way, an end of optical fiber is connected with the optical-fiber temperature measuring main frame, by optical-fiber temperature measuring Host Detection cable top layer or insulation course temperature; The optical-fiber temperature measuring main frame is connected with cable operating analysis main frame, and temperature data is transferred to cable operating analysis main frame; The periphery of cable arranges current transformer, and current transformer gathers the current-carrying capacity of cable and transfers to cable operating analysis main frame; The data acquisition and monitoring device is connected with cable with cable operating analysis main frame respectively, it receives the current-carrying capacity of cable, the cable temperature that are sent by cable operating analysis main frame and distributes and the temperature anomaly alarm, and will collect load current by the cable place and feed back to cable operating analysis main frame.
The utility model can also adopt following technical measures:
The optical fiber laid in described cable is many, and the phase core in corresponding cable at least lays an optical fiber.
Advantage and the good effect that the utlity model has are:
Cable temperature measuring system of the present utility model, changed the present situation of temperature measuring equipment intellectual monitoring environment temperature, by the monitoring conductor temperature but not environment temperature improves the current capacity forecasting accuracy; Native system can accurately be simulated heat transfer process in addition, can accomplish early warning in conjunction with load prediction, thereby can in real time, accurately grasp cable operating temperature, realization is according to the conveying electric current of cable operating temperature control cables, change traditional method of according to design rated current-carrying capacity control cables, carrying electric current, more can give full play to the transport capacity of cable; Can find in time the cable operational defect relevant with heat, and send early warning signal, guarantee cable running safety.
The accompanying drawing explanation
Fig. 1 is the structural representation of cable temperature measuring system of the present utility model.
Embodiment
Referring to drawings and Examples, the utility model is described in detail.
Fig. 1 is the structural representation that cable temperature of the present utility model is measured.
As shown in Figure 1, cable temperature measuring system of the present utility model comprises: optical fiber, cable, current transformer, optical-fiber temperature measuring main frame, cable operating analysis main frame and data acquisition and monitoring device; Optical fiber be laid in cable inner and with the cable laying of going the same way, an end of optical fiber is connected with the optical-fiber temperature measuring main frame, by optical-fiber temperature measuring Host Detection cable top layer or insulation course temperature; The optical-fiber temperature measuring main frame is connected with cable operating analysis main frame, and temperature data is transferred to cable operating analysis main frame; The periphery of cable arranges current transformer, and current transformer gathers the current-carrying capacity of cable and transfers to cable operating analysis main frame; The data acquisition and monitoring device is connected with cable with cable operating analysis main frame respectively, it receives the current-carrying capacity of cable, the cable temperature that are sent by cable operating analysis main frame and distributes and the temperature anomaly alarm, and will collect load current by the cable place and feed back to cable operating analysis main frame.
The optical fiber laid in cable is many, and the phase core in corresponding cable at least lays an optical fiber, by the different core temperature of different optical fiber measurements.
The light path change-over switch is set in the optical-fiber temperature measuring main frame, many optical fiber that lay in cable are connected with the light path change-over switch simultaneously, can be transformed into as required different optical fiber by the light path change-over switch, thereby measure respectively the temperature of the corresponding core of different fiber.
Cable temperature measuring system of the present utility model, changed the present situation of temperature measuring equipment intellectual monitoring environment temperature, by the monitoring conductor temperature but not environment temperature improves the current capacity forecasting accuracy; Native system can accurately be simulated heat transfer process in addition, can accomplish early warning in conjunction with load prediction, thereby can in real time, accurately grasp cable operating temperature, realization is according to the conveying electric current of cable operating temperature control cables, change traditional method of according to design rated current-carrying capacity control cables, carrying electric current, more can give full play to the transport capacity of cable; Can find in time the cable operational defect relevant with heat, and send early warning signal, guarantee cable running safety.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model with preferred embodiment openly as above, yet any those skilled in the art, within not breaking away from the technical solutions of the utility model scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (2)
1. a cable temperature measuring system, is characterized in that, comprising: optical fiber, cable, current transformer, optical-fiber temperature measuring main frame, cable operating analysis main frame and data acquisition and monitoring device; Optical fiber be laid in cable inner and with the cable laying of going the same way, an end of optical fiber is connected with the optical-fiber temperature measuring main frame, by optical-fiber temperature measuring Host Detection cable top layer or insulation course temperature; The optical-fiber temperature measuring main frame is connected with cable operating analysis main frame, and temperature data is transferred to cable operating analysis main frame; The periphery of cable arranges current transformer, and current transformer gathers the current-carrying capacity of cable and transfers to cable operating analysis main frame; The data acquisition and monitoring device is connected with cable with cable operating analysis main frame respectively, it receives the current-carrying capacity of cable, the cable temperature that are sent by cable operating analysis main frame and distributes and the temperature anomaly alarm, and will collect load current by the cable place and feed back to cable operating analysis main frame.
2. cable temperature measuring system according to claim 1, it is characterized in that: the optical fiber laid in cable is many, the phase core in corresponding cable at least lays an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203681212U CN203337270U (en) | 2013-06-25 | 2013-06-25 | Cable temperature measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203681212U CN203337270U (en) | 2013-06-25 | 2013-06-25 | Cable temperature measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203337270U true CN203337270U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2013203681212U Expired - Fee Related CN203337270U (en) | 2013-06-25 | 2013-06-25 | Cable temperature measuring system |
Country Status (1)
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| CN (1) | CN203337270U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142186A (en) * | 2014-07-08 | 2014-11-12 | 国网山东省电力公司青岛供电公司 | Remote optical fiber cable temperature detection alarm system and method |
| CN105302181A (en) * | 2015-11-02 | 2016-02-03 | 国网上海市电力公司 | Electric power tunnel cable temperature control system and method |
| CN105628250A (en) * | 2015-12-23 | 2016-06-01 | 国网安徽省电力公司蚌埠供电公司 | Power cable fault monitoring method based on grey GM(1,1) model |
| CN106990310A (en) * | 2017-05-03 | 2017-07-28 | 中国南方电网有限责任公司电网技术研究中心 | Overhead transmission conductor capacity characteristic monitoring system, testing method and device |
| CN112485557A (en) * | 2020-11-03 | 2021-03-12 | 国网辽宁省电力有限公司电力科学研究院 | Three-phase coaxial high-temperature superconducting cable system current-carrying capacity and temperature monitoring device and method |
-
2013
- 2013-06-25 CN CN2013203681212U patent/CN203337270U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142186A (en) * | 2014-07-08 | 2014-11-12 | 国网山东省电力公司青岛供电公司 | Remote optical fiber cable temperature detection alarm system and method |
| CN105302181A (en) * | 2015-11-02 | 2016-02-03 | 国网上海市电力公司 | Electric power tunnel cable temperature control system and method |
| CN105302181B (en) * | 2015-11-02 | 2017-07-28 | 国网上海市电力公司 | A kind of power tunnel cable temperature control system and method |
| CN105628250A (en) * | 2015-12-23 | 2016-06-01 | 国网安徽省电力公司蚌埠供电公司 | Power cable fault monitoring method based on grey GM(1,1) model |
| CN106990310A (en) * | 2017-05-03 | 2017-07-28 | 中国南方电网有限责任公司电网技术研究中心 | Overhead transmission conductor capacity characteristic monitoring system, testing method and device |
| CN112485557A (en) * | 2020-11-03 | 2021-03-12 | 国网辽宁省电力有限公司电力科学研究院 | Three-phase coaxial high-temperature superconducting cable system current-carrying capacity and temperature monitoring device and method |
| CN112485557B (en) * | 2020-11-03 | 2024-05-31 | 国网辽宁省电力有限公司电力科学研究院 | Current-carrying capacity and temperature monitoring device and method for three-phase coaxial high-temperature superconducting cable system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20160625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |