CN103884961A - Cable fault on-line monitoring system - Google Patents

Cable fault on-line monitoring system Download PDF

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Publication number
CN103884961A
CN103884961A CN201410089284.6A CN201410089284A CN103884961A CN 103884961 A CN103884961 A CN 103884961A CN 201410089284 A CN201410089284 A CN 201410089284A CN 103884961 A CN103884961 A CN 103884961A
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CN
China
Prior art keywords
temperature
module
current
cable
fault
Prior art date
Application number
CN201410089284.6A
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Chinese (zh)
Inventor
肖高林
Original Assignee
珠海创能科世摩电气科技有限公司
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Publication date
Application filed by 珠海创能科世摩电气科技有限公司 filed Critical 珠海创能科世摩电气科技有限公司
Priority to CN201410089284.6A priority Critical patent/CN103884961A/en
Publication of CN103884961A publication Critical patent/CN103884961A/en

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Abstract

The invention provides a cable fault on-line monitoring system. A plurality of sets of fault monitoring modules are arranged on a cable circuit to be detected in a subsection mode, the short-circuit current, the grounding current, the load current and the current temperature of the cable circuit are detected, and the detected data are sent to a background monitoring center through a communication center; in addition, a temperature detection module is arranged so that the equipment temperature at a position to be detected in high-voltage equipment can be collected, a thermodetector is used for sending the temperature data to the background monitoring center, and therefore when the circuit breaks down, synthetic judgment can be carried out at the background monitoring center. Furthermore, when the circuit breaks down, a fault indication module is used for giving an alarm, fault points can be quickly known by remote control workers or field maintenance workers, and thus fault detection reliability can be improved. The cable fault on-line monitoring system can be applied to the technical field of electric power fault detection.

Description

Cable fault on-line monitoring system
Technical field
The present invention relates to a kind of monitoring system, relate in particular to the cable fault on-line monitoring system in power domain.
Background technology
At present, in overhead distribution network operation system, circuit branch is more, method of operation complexity.Interface in electrical network between numerous high voltage electric equipments itself, equipment is that electric power is carried weakest link, and the substantive issue of this weak link is exactly interface heating.Along with the increase of load, cause interface generate heat and form vicious cycle: temperature rise, expansion, contraction, oxidation, resistance increase, heating direct is to leading to a disaster once again.Power supply enterprise adopts manual inspection conventionally for the malfunction monitoring mode of cable line at present, even sometimes, have to by drawing block switch and determining guilty culprit line segment through electric substation's trial line charging, localization of fault workload is very large, and location postpones longer, cannot accomplish timely and effectively fault to be positioned, greatly affect the reliability of power supply.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of can realization in real time electric load state to be detected the automatic location of cable line fault point, ensures the cable fault on-line monitoring system of electric power cable operation.
The technical solution adopted in the present invention is: cable fault on-line monitoring system of the present invention comprises some set of fault monitoring devices, communication center, backstage monitoring center, temperature measurer and several temperature detecting module, and the described malfunction monitoring module of some covers is arranged on respectively on the diverse location of cable to be detected;
The described malfunction monitoring module of every cover comprises:
Be separately fixed on the each single-phase electric wire in threephase cable, detect three current detection module I of short-circuit current on each described single-phase electric wire and current temperature, and
Be fixed in threephase cable bus, detect the current detection module II of ground current and load current and the current temperature of described threephase cable bus;
Described communication center comprises data acquisition module and information transmission modular, described data acquisition module is connected with described current detection module I, current detection module II by optical fiber, gather short-circuit current, ground current, load current and the current temperature of cable, described information transmission modular is connected with described data acquisition module, and the data that collect are sent;
Multiple described temperature detecting module are fixed on position to be detected in high-tension apparatus, detect the device temperature of position to be detected in high-tension apparatus, described temperature measurer is connected with multiple described temperature detecting module, gathers described temperature detecting module and detects the device temperature obtaining; Described backstage monitoring center is all connected by telecommunication mode with described temperature measurer with described communication center.
The described malfunction monitoring module of every cover also comprises built-in power for powering and is connected with current detection module II with described current detection module I respectively, for the failure indication module of pointing out in the time earth fault or short trouble being detected.
On described temperature measurer, be provided with information transmission modular for transmitting temperature information and the display for display device temperature, described temperature measurer is connected with multiple described temperature detecting module by described information transmission modular.
Signal processing circuit, information transmission modular and power supply that described temperature detecting module comprises temperature sensor, is connected with described temperature sensor.
Described communication center also comprises built-in power.
Described failure indication module comprises LED light and/or hummer.
The invention has the beneficial effects as follows: the present invention is by many set of fault of subsection setup monitoring modular on cable line to be detected, the short-circuit current of detection streamer circuit, ground current, load current and current temperature, and the data that detect are sent to backstage monitoring center by communication center, in addition, can gather the device temperature of position to be detected in high-tension apparatus by set temperature detection module, and utilize temperature measurer that temperature data is sent to backstage monitoring center, and then in the time of line failure, circuit under same section of bus of same transformer all can respond, by the response situation between each circuit and the different phases of same circuit, on backstage, monitoring center comprehensively judges, and then greatly improve the reliability of fault detect.
Accompanying drawing explanation
Fig. 1 is simple block diagram of the present invention.
Embodiment
As shown in Figure 1, in the present embodiment, system of the present invention comprises some set of fault monitoring modulars, communication center, backstage monitoring center, temperature measurer and multiple temperature detecting module, and wherein, described malfunction monitoring module is arranged on respectively on the diverse location of cable to be detected.The described malfunction monitoring module of every cover comprises: be separately fixed on the each single-phase electric wire in threephase cable, detect three current detection module I of short-circuit current on each described single-phase electric wire and current temperature, with be fixed in threephase cable bus, detect the current detection module II of ground current and load current and the current temperature of described threephase cable bus; Described communication center is connected with described current detection module I, current detection module II, gather short-circuit current, ground current, load current and the current temperature of cable, multiple described temperature detecting module are fixed on position to be detected in high-tension apparatus, detect the device temperature of position to be detected in high-tension apparatus.Position to be detected in described high-tension apparatus comprises: high-tension switch cabinet contact and contact, indoor outer transformer, box-type substation, high voltage bus joint, high-voltage cable joint and/or chopper switch.Described temperature measurer is connected with multiple described temperature detecting module, gathers described temperature detecting module and detects the device temperature obtaining; Described backstage monitoring center is all connected by telecommunication mode with temperature measurer with described communication center.Particularly, the described malfunction monitoring module of every cover also comprises built-in power for powering and is connected with current detection module II with described current detection module I respectively, for the failure indication module of pointing out in the time earth fault or short trouble being detected.Described communication center comprises data acquisition module and information transmission modular, described data acquisition module is connected with described current detection module I, current detection module II by optical fiber, described information transmission modular is connected with described data acquisition module, and the data that collect are sent.Described temperature measurer is connected with multiple described temperature detecting module by information transmission modular.On described temperature measurer, be provided with information transmission modular for transmitting temperature information and the display for display device temperature, signal processing circuit, information transmission modular and power supply that described temperature detecting module comprises temperature sensor, is connected with described temperature sensor.Described communication center also comprises built-in power.Described failure indication module comprises LED light and/or hummer.
Many set of fault monitoring modular is arranged on respectively on the diverse location of cable, for by cable staging treating to be detected, and utilizes many set of fault monitoring modular to carry out segmentation and treats the failure condition of detection streamer and detect.
The present invention is by many set of fault of subsection setup monitoring modular on cable line to be detected, and the short-circuit current of detection streamer circuit, ground current, load current and current temperature, and the data that detect are sent to backstage monitoring center by communication center, in addition, can gather the device temperature of position to be detected in high-tension apparatus by set temperature detection module, and utilize temperature measurer temperature data can be sent to backstage monitoring center, and then in the time of line failure, circuit under same section of bus of same transformer all can respond, by the response situation between each circuit and the different phases of same circuit, can comprehensively judge in backstage monitoring center.In addition, in the time of line failure, failure indication module carries out light warning by LED light, or sends chimes of doom by hummer and carry out alarm, allows the staff of Long-distance Control or can know fast trouble spot to the staff of on-site maintenance.Improve the reliability of fault detect.
The present invention can be applicable to power failure detection field.
It should be noted that, above-mentionedly only describe the present invention with preferred embodiment, can not limit to interest field of the present invention at this point, therefore in the situation that not departing from inventive concept, the equivalence that the content of all utilizations instructions of the present invention and accompanying drawing part is carried out changes, and all reason is with being included within the scope of claim of the present invention.

Claims (6)

1. a cable fault on-line monitoring system, this system comprises some set of fault monitoring devices, communication center, backstage monitoring center, temperature measurer and several temperature detecting module, it is characterized in that: the described malfunction monitoring module of some covers is arranged on respectively on the diverse location of cable to be detected;
The described malfunction monitoring module of every cover comprises:
Be separately fixed on the each single-phase electric wire in threephase cable, detect three current detection module I of short-circuit current on each described single-phase electric wire and current temperature, and
Be fixed in threephase cable bus, detect the current detection module II of ground current and load current and the current temperature of described threephase cable bus;
Described communication center comprises data acquisition module and information transmission modular, described data acquisition module is connected with described current detection module I, current detection module II by optical fiber, gather short-circuit current, ground current, load current and the current temperature of cable, described information transmission modular is connected with described data acquisition module, and the data that collect are sent;
Multiple described temperature detecting module are fixed on position to be detected in high-tension apparatus, detect the device temperature of position to be detected in high-tension apparatus, described temperature measurer is connected with multiple described temperature detecting module, gathers described temperature detecting module and detects the device temperature obtaining; Described backstage monitoring center is all connected by telecommunication mode with described temperature measurer with described communication center.
2. according to the cable fault on-line monitoring system described in claim 1, it is characterized in that: the described malfunction monitoring module of every cover also comprises built-in power for powering and is connected with current detection module II with described current detection module I respectively, for the failure indication module of pointing out in the time earth fault or short trouble being detected.
3. according to the cable fault on-line monitoring system described in claim 1, it is characterized in that: on described temperature measurer, be provided with information transmission modular for transmitting temperature information and the display for display device temperature, described temperature measurer is connected with multiple described temperature detecting module by described information transmission modular.
4. according to the cable fault on-line monitoring system described in claim 3, it is characterized in that: signal processing circuit, information transmission modular and power supply that described temperature detecting module comprises temperature sensor, is connected with described temperature sensor.
5. according to the cable fault on-line monitoring system described in claim 1, it is characterized in that: described communication center also comprises built-in power.
6. according to the cable fault on-line monitoring system described in claim 2, it is characterized in that: described failure indication module comprises LED light and/or hummer.
CN201410089284.6A 2014-03-12 2014-03-12 Cable fault on-line monitoring system CN103884961A (en)

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Application Number Priority Date Filing Date Title
CN201410089284.6A CN103884961A (en) 2014-03-12 2014-03-12 Cable fault on-line monitoring system

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Application Number Priority Date Filing Date Title
CN201410089284.6A CN103884961A (en) 2014-03-12 2014-03-12 Cable fault on-line monitoring system

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Publication Number Publication Date
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104578429A (en) * 2015-02-02 2015-04-29 哈尔滨理工大学 Online operation monitoring system for cable branch box
CN106054020A (en) * 2016-06-01 2016-10-26 李明科 Distributed cable fault detection system
CN106412510A (en) * 2016-10-13 2017-02-15 中国水利水电第四工程局有限公司 Security and protection monitoring method of comprehensive pipe gallery
CN107037318A (en) * 2016-11-25 2017-08-11 国网河南省电力公司平顶山供电公司 A kind of power cable fault locating platform
CN107272525A (en) * 2017-08-16 2017-10-20 杭州大有科技发展有限公司 A kind of fault detector
CN107329036A (en) * 2017-08-16 2017-11-07 杭州大有科技发展有限公司 A kind of short-circuit sensor for high-tension line
CN107328491A (en) * 2017-08-16 2017-11-07 杭州大有科技发展有限公司 A kind of temperature sensor for high-tension line
CN108029184A (en) * 2015-09-17 2018-05-11 赤多尼科两合股份有限公司 Power supply unit for bus
CN108061824A (en) * 2017-12-26 2018-05-22 安徽博达通信工程监理有限责任公司 A kind of cable resistance detects communication system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104578429A (en) * 2015-02-02 2015-04-29 哈尔滨理工大学 Online operation monitoring system for cable branch box
CN108029184A (en) * 2015-09-17 2018-05-11 赤多尼科两合股份有限公司 Power supply unit for bus
CN108029184B (en) * 2015-09-17 2020-04-14 赤多尼科两合股份有限公司 Bus user, lamp, bus system, method for operating a bus system, and method for operating a device
CN106054020A (en) * 2016-06-01 2016-10-26 李明科 Distributed cable fault detection system
CN106412510A (en) * 2016-10-13 2017-02-15 中国水利水电第四工程局有限公司 Security and protection monitoring method of comprehensive pipe gallery
CN107037318A (en) * 2016-11-25 2017-08-11 国网河南省电力公司平顶山供电公司 A kind of power cable fault locating platform
CN107037318B (en) * 2016-11-25 2019-05-14 国网河南省电力公司平顶山供电公司 A kind of power cable fault locating platform
CN107272525A (en) * 2017-08-16 2017-10-20 杭州大有科技发展有限公司 A kind of fault detector
CN107329036A (en) * 2017-08-16 2017-11-07 杭州大有科技发展有限公司 A kind of short-circuit sensor for high-tension line
CN107329036B (en) * 2017-08-16 2019-08-06 浙江大有实业有限公司 A kind of short-circuit sensor for high-tension line
CN107272525B (en) * 2017-08-16 2019-10-18 浙江大有实业有限公司 A kind of fault detector
CN107328491A (en) * 2017-08-16 2017-11-07 杭州大有科技发展有限公司 A kind of temperature sensor for high-tension line
CN108061824A (en) * 2017-12-26 2018-05-22 安徽博达通信工程监理有限责任公司 A kind of cable resistance detects communication system

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Application publication date: 20140625