CN102944812A - Cable operation fault monitoring device - Google Patents

Cable operation fault monitoring device Download PDF

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Publication number
CN102944812A
CN102944812A CN2012104493653A CN201210449365A CN102944812A CN 102944812 A CN102944812 A CN 102944812A CN 2012104493653 A CN2012104493653 A CN 2012104493653A CN 201210449365 A CN201210449365 A CN 201210449365A CN 102944812 A CN102944812 A CN 102944812A
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CN
China
Prior art keywords
center
cable
detection module
monitoring
monitoring equipment
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Pending
Application number
CN2012104493653A
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Chinese (zh)
Inventor
王玲
夏泳
杜科
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Benxi Power Supply Co of Liaoning Electric Power Co Ltd
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State Grid Corp of China SGCC
Benxi Power Supply Co of Liaoning Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Benxi Power Supply Co of Liaoning Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN2012104493653A priority Critical patent/CN102944812A/en
Publication of CN102944812A publication Critical patent/CN102944812A/en
Pending legal-status Critical Current

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  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention relates to a cable operation fault monitoring device which structurally comprises a centralized monitoring center (1), online monitoring equipment (2), a power dispatching center (3), an alarm module (6) and a power supply, wherein the online monitoring equipment (2) is provided with a temperature detection module (4) and a current detection module (5); the temperature detection module (4) is provided with an infrared sensor SMT9902si; and GPRS/CDMA (General Packet Radio Service/Code Division Multiple Access) 1X wireless data transmission devices are respectively arranged between the centralized monitoring center (1) and the online monitoring equipment (2) as well as between the centralized monitoring center (1) and the power dispatching center (3). The device disclosed by the invention can be arranged inside a tunnel and is applicable to the high moisture and condensation working environment of the tunnel in the south. The device can be independently matched with a mobile phone terminal for use and can also be matched with a software platform for use.

Description

A kind of cable operation troubles monitoring device
Technical field
The present invention relates to structural design and the applied technical field of power cable device for monitoring running, a kind of cable operation troubles monitoring device is provided especially.
Background technology
The size of cable line metallic shield grounding electric current has important effect to the safe and stable operation of cable line.
People urgently wish to obtain the good cable operation troubles monitoring device of a kind of technique effect.
Summary of the invention
The purpose of this invention is to provide the good cable operation troubles monitoring device of a kind of technique effect.
The invention provides a kind of cable operation troubles monitoring device, be used for the monitoring of electric system 110KV and above cable metal sheath grounding circulation; It is constructed as follows: center of the centralized monitor 1, on-line monitoring equipment 2, power-management centre 3; Alarm module 6, power supply, wherein: center of the centralized monitor 1, be connected with all the other several parts respectively; Power supply respectively with are connected several parts and connect; It is characterized in that: on-line monitoring equipment 2 is specially temperature detecting module 4, current detection module 5; Described temperature detecting module 4 is the infrared sensor SMT9902si of Dutch Smartec Company specifically; It is based on the silica-based infrared sensor of thermoelectric pile.A large amount of thermopair is heaped on bottom silica-based, measuring junction on the bottom and low temperature contact are by their heat of one deck very thin film isolation, black absorption layer above the measuring junction is converted into heat energy with the radioactive ray of incident, by thermoelectric effect as can be known, output voltage is proportional to radioactive ray, and thermoelectric pile is to use BiSb and NiCr as thermopair usually.The inner silicon filter disc that embeds with Ni1000 temperature sensor and a small angle of SMT9902sil is so that it is more accurate to measure temperature.Because infrared signature and temperature correlation can be measured different temperature ranges with different filters.Ripe semiconductor technology is the product miniaturization, cost degradation.In order to satisfy some application, infrared sensor opening visual angle can be designed to little of 7 °.
Center of the centralized monitor 1 is provided with GPRS/CDMA 1X wireless data transmission device respectively and between the on-line monitoring equipment 2, power-management centre 3.Can solve tunnel internal wireless signal covering problem.Data transmission unit is responsible for data transfer, and system can support the different communication modes such as GSM, CDMA according to client's network condition.
Temperature detecting module 4 is used for the monitoring cable connector temperature, and this also is that important fault in the Power Cable Running Process is surveyed and patrolled means, can effectively reduce manual patrol, ensures the safe operation of electrical network.
When the metallic shield grounding current anomaly, system can pass through alarm module 6 automatic alarms, signal is sent to center of the centralized monitor 1 in real time, the ground current data that current detection module 5 is measured can be grasped the operation conditions of cable metal sheath earthed system in real time with the 3 cable load datas that provide compare and analysis-by-synthesis from the power-management centre.The present invention specifically selects No. 4 temperature sensors, is mainly used in the temperature survey of cable splice and the ambient temperature measurement in the tunnel.This sensor adopts special material processing, can be attached to cable splice fully, fully contact.Simultaneously, waterproof, protection against the tide, anticorrosive, can adapt to the rugged surroundings of tunnel and the various complexity of trench.
Current detection module 5 is the MAX417 chip specifically, and the electric current of measurement is less than 1mA, wherein is connected with resistance and is 100 ohm sampling resistor, links on the little chip of 6 pin, and chip has two pin to link single-chip microcomputer mouth line by pull-up resistor.
Current detection module 5 is the LMK2-0.66 current transformer specifically.Current transformer is the current sensor of a precision, and cover installs on the cable grounding line, will export from secondary terminals from the current signal that ground wire is sensed.Current transformer has preferably linear ratio relation and saturated performance.This mutual inductor adopts detachable waterproofing design, satisfies the request for utilization under the rugged surroundings in the tunnel fully, can change flexibly when safeguarding, the cost that reduces to safeguard has increased the operability of safeguarding.Sensor has adopted automatic replacing range design, can automatically change range according to size of current, improves reliability and the precision of equipment.
Among the present invention, cable metal sheath grounding circulation on-line monitoring system is mainly used in the supervision of electric system 110KV and above cable metal sheath grounding circulation, the tunnel lay mode that relevant wired monitoring system adopts based on present state inner cable lay.
Equipment of the present invention can be installed on tunnel internal, adapts to the high moisture in southern tunnel and solidifying water conservancy project and makes environment.Equipment separately matching with mobile phone terminal uses, and also can cooperate software platform to use.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is cable operation troubles monitoring device structural principle schematic diagram.
Embodiment
Embodiment 1
A kind of cable operation troubles monitoring device is used for the monitoring of electric system 110KV and above cable metal sheath grounding circulation; It is constructed as follows: center of the centralized monitor 1, on-line monitoring equipment 2, power-management centre 3; Alarm module 6, power supply, wherein: center of the centralized monitor 1, be connected with all the other several parts respectively; Power supply respectively with are connected several parts and connect; It is characterized in that: on-line monitoring equipment 2 is specially temperature detecting module 4, current detection module 5; Described temperature detecting module 4 is the infrared sensor SMT9902si of Dutch Smartec Company specifically; It is based on the silica-based infrared sensor of thermoelectric pile.A large amount of thermopair is heaped on bottom silica-based, measuring junction on the bottom and low temperature contact are by their heat of one deck very thin film isolation, black absorption layer above the measuring junction is converted into heat energy with the radioactive ray of incident, by thermoelectric effect as can be known, output voltage is proportional to radioactive ray, and thermoelectric pile is to use BiSb and NiCr as thermopair usually.The inner silicon filter disc that embeds with Ni1000 temperature sensor and a small angle of SMT9902sil is so that it is more accurate to measure temperature.Because infrared signature and temperature correlation can be measured different temperature ranges with different filters.Ripe semiconductor technology is the product miniaturization, cost degradation.In order to satisfy some application, infrared sensor opening visual angle can be designed to little of 7 °.
Center of the centralized monitor 1 is provided with GPRS/CDMA 1X wireless data transmission device respectively and between the on-line monitoring equipment 2, power-management centre 3.Can solve tunnel internal wireless signal covering problem.Data transmission unit is responsible for data transfer, and system can support the different communication modes such as GSM, CDMA according to client's network condition.
Temperature detecting module 4 is used for the monitoring cable connector temperature, and this also is that important fault in the Power Cable Running Process is surveyed and patrolled means, can effectively reduce manual patrol, ensures the safe operation of electrical network.
When the metallic shield grounding current anomaly, system can pass through alarm module 6 automatic alarms, signal is sent to center of the centralized monitor 1 in real time, the ground current data that current detection module 5 is measured can be grasped the operation conditions of cable metal sheath earthed system in real time with the 3 cable load datas that provide compare and analysis-by-synthesis from the power-management centre.The present embodiment is specifically selected No. 4 temperature sensors, is mainly used in the temperature survey of cable splice and the ambient temperature measurement in the tunnel.This sensor adopts special material processing, can be attached to cable splice fully, fully contact.Simultaneously, waterproof, protection against the tide, anticorrosive, can adapt to the rugged surroundings of tunnel and the various complexity of trench.
Current detection module 5 is the MAX417 chip specifically, and the electric current of measurement is less than 1mA, wherein is connected with resistance and is 100 ohm sampling resistor, links on the little chip of 6 pin, and chip has two pin to link single-chip microcomputer mouth line by pull-up resistor.
In the present embodiment, cable metal sheath grounding circulation on-line monitoring system is mainly used in the supervision of electric system 110KV and above cable metal sheath grounding circulation, the tunnel lay mode that relevant wired monitoring system adopts based on present state inner cable lay.The described equipment of the present embodiment can be installed on tunnel internal, adapts to the high moisture in southern tunnel and solidifying water conservancy project and makes environment.Equipment separately matching with mobile phone terminal uses, and also can cooperate software platform to use.
Embodiment 2
A kind of cable operation troubles monitoring device is used for the monitoring of electric system 110KV and above cable metal sheath grounding circulation; It is constructed as follows: center of the centralized monitor 1, on-line monitoring equipment 2, power-management centre 3; Alarm module 6, power supply, wherein: center of the centralized monitor 1, be connected with all the other several parts respectively; Power supply respectively with are connected several parts and connect; It is characterized in that: on-line monitoring equipment 2 is specially temperature detecting module 4, current detection module 5; Described temperature detecting module 4 is the infrared sensor SMT9902si of Dutch Smartec Company specifically; It is based on the silica-based infrared sensor of thermoelectric pile.A large amount of thermopair is heaped on bottom silica-based, measuring junction on the bottom and low temperature contact are by their heat of one deck very thin film isolation, black absorption layer above the measuring junction is converted into heat energy with the radioactive ray of incident, by thermoelectric effect as can be known, output voltage is proportional to radioactive ray, and thermoelectric pile is to use BiSb and NiCr as thermopair usually.The inner silicon filter disc that embeds with Ni1000 temperature sensor and a small angle of SMT9902sil is so that it is more accurate to measure temperature.Because infrared signature and temperature correlation can be measured different temperature ranges with different filters.Ripe semiconductor technology is the product miniaturization, cost degradation.In order to satisfy some application, infrared sensor opening visual angle can be designed to little of 7 °.
Center of the centralized monitor 1 is provided with GPRS/CDMA 1X wireless data transmission device respectively and between the on-line monitoring equipment 2, power-management centre 3.Can solve tunnel internal wireless signal covering problem.Data transmission unit is responsible for data transfer, and system can support the different communication modes such as GSM, CDMA according to client's network condition.
Temperature detecting module 4 is used for the monitoring cable connector temperature, and this also is that important fault in the Power Cable Running Process is surveyed and patrolled means, can effectively reduce manual patrol, ensures the safe operation of electrical network.
When the metallic shield grounding current anomaly, system can pass through alarm module 6 automatic alarms, signal is sent to center of the centralized monitor 1 in real time, the ground current data that current detection module 5 is measured can be grasped the operation conditions of cable metal sheath earthed system in real time with the 3 cable load datas that provide compare and analysis-by-synthesis from the power-management centre.The present embodiment is specifically selected No. 4 temperature sensors, is mainly used in the temperature survey of cable splice and the ambient temperature measurement in the tunnel.This sensor adopts special material processing, can be attached to cable splice fully, fully contact.Simultaneously, waterproof, protection against the tide, anticorrosive, can adapt to the rugged surroundings of tunnel and the various complexity of trench.
Current detection module 5 is the LMK2-0.66 current transformer specifically.Current transformer is the current sensor of a precision, and cover installs on the cable grounding line, will export from secondary terminals from the current signal that ground wire is sensed.Current transformer has preferably linear ratio relation and saturated performance.This mutual inductor adopts detachable waterproofing design, satisfies the request for utilization under the rugged surroundings in the tunnel fully, can change flexibly when safeguarding, the cost that reduces to safeguard has increased the operability of safeguarding.Sensor has adopted automatic replacing range design, can automatically change range according to size of current, improves reliability and the precision of equipment.
In the present embodiment, cable metal sheath grounding circulation on-line monitoring system is mainly used in the supervision of electric system 110KV and above cable metal sheath grounding circulation, the tunnel lay mode that relevant wired monitoring system adopts based on present state inner cable lay.
The described equipment of the present embodiment can be installed on tunnel internal, adapts to the high moisture in southern tunnel and solidifying water conservancy project and makes environment.Equipment separately matching with mobile phone terminal uses, and also can cooperate software platform to use.

Claims (3)

1. a cable operation troubles monitoring device is used for the monitoring of electric system 110KV and above cable metal sheath grounding circulation; It is constructed as follows: center of the centralized monitor (1), on-line monitoring equipment (2), power-management centre (3); Alarm module (6), power supply, wherein: center of the centralized monitor (1), be connected with all the other several parts respectively; Power supply respectively with are connected several parts and connect; It is characterized in that: on-line monitoring equipment (2) is specially temperature detecting module (4), current detection module (5); Described temperature detecting module (4) is infrared sensor SMT9902si specifically;
Center of the centralized monitor (1) is provided with GPRS/CDMA 1X wireless data transmission device respectively and between the on-line monitoring equipment (2), power-management centre (3); Temperature detecting module (4) is used for the monitoring cable connector temperature.
2. according to the described cable operation troubles of claim 1 monitoring device, it is characterized in that: current detection module (5) is the MAX417 chip specifically, the electric current of measuring is less than 1mA, wherein be connected with resistance and be 100 ohm sampling resistor, link on the little chip of 6 pin, chip has two pin to link single-chip microcomputer mouth line by pull-up resistor.
3. according to the described cable operation troubles of claim 1 monitoring device, it is characterized in that:
Current detection module (5) is the LMK2-0.66 current transformer specifically.
CN2012104493653A 2012-11-11 2012-11-11 Cable operation fault monitoring device Pending CN102944812A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267922A (en) * 2013-05-15 2013-08-28 国家电网公司 Intelligent cable short circuit grounding and temperature fault indicator
CN104459438A (en) * 2014-12-05 2015-03-25 国网浙江奉化市供电公司 Insulation performance detecting system for metal sheath of power cable
CN105388824A (en) * 2015-11-27 2016-03-09 国网北京市电力公司 Method and apparatus for monitoring tunnel
CN105842520A (en) * 2016-05-17 2016-08-10 国网山东省电力公司青岛供电公司 Cable grounding circulation monitoring device
CN106596604A (en) * 2016-11-29 2017-04-26 国网辽宁省电力有限公司沈阳供电公司 High voltage cable non-destructive testing device based on novel reflection electron diffraction technology
CN109975655A (en) * 2019-03-22 2019-07-05 北京东峰英杰科技有限公司 Railway power penetrates through cable fault early warning and positioning device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH066913A (en) * 1992-06-17 1994-01-14 Matsushita Electric Ind Co Ltd Receiving and distributing facility provided with temperature monitor
KR20090050210A (en) * 2007-11-15 2009-05-20 현대중공업 주식회사 Monitoring and diagnosis apparatus of power transmission road having temperature measurement module
CN101464488A (en) * 2009-01-16 2009-06-24 上海慧东电气设备有限公司 On-line monitoring system for high voltage cable
CN201302462Y (en) * 2008-12-04 2009-09-02 奇瑞汽车股份有限公司 Automatic gearbox electric control system data collector
CN101576600A (en) * 2009-05-15 2009-11-11 重庆大学 Self-walking underground cable failure detection intelligent instrument
CN201867463U (en) * 2010-11-30 2011-06-15 山东电力集团公司菏泽供电公司 Intelligent cable duct or pit on-line monitoring system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH066913A (en) * 1992-06-17 1994-01-14 Matsushita Electric Ind Co Ltd Receiving and distributing facility provided with temperature monitor
KR20090050210A (en) * 2007-11-15 2009-05-20 현대중공업 주식회사 Monitoring and diagnosis apparatus of power transmission road having temperature measurement module
CN201302462Y (en) * 2008-12-04 2009-09-02 奇瑞汽车股份有限公司 Automatic gearbox electric control system data collector
CN101464488A (en) * 2009-01-16 2009-06-24 上海慧东电气设备有限公司 On-line monitoring system for high voltage cable
CN101576600A (en) * 2009-05-15 2009-11-11 重庆大学 Self-walking underground cable failure detection intelligent instrument
CN201867463U (en) * 2010-11-30 2011-06-15 山东电力集团公司菏泽供电公司 Intelligent cable duct or pit on-line monitoring system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103267922A (en) * 2013-05-15 2013-08-28 国家电网公司 Intelligent cable short circuit grounding and temperature fault indicator
CN104459438A (en) * 2014-12-05 2015-03-25 国网浙江奉化市供电公司 Insulation performance detecting system for metal sheath of power cable
CN105388824A (en) * 2015-11-27 2016-03-09 国网北京市电力公司 Method and apparatus for monitoring tunnel
CN105842520A (en) * 2016-05-17 2016-08-10 国网山东省电力公司青岛供电公司 Cable grounding circulation monitoring device
CN106596604A (en) * 2016-11-29 2017-04-26 国网辽宁省电力有限公司沈阳供电公司 High voltage cable non-destructive testing device based on novel reflection electron diffraction technology
CN109975655A (en) * 2019-03-22 2019-07-05 北京东峰英杰科技有限公司 Railway power penetrates through cable fault early warning and positioning device

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Application publication date: 20130227