CN102841275A - On-line monitoring system of arrester - Google Patents

On-line monitoring system of arrester Download PDF

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Publication number
CN102841275A
CN102841275A CN2012102956909A CN201210295690A CN102841275A CN 102841275 A CN102841275 A CN 102841275A CN 2012102956909 A CN2012102956909 A CN 2012102956909A CN 201210295690 A CN201210295690 A CN 201210295690A CN 102841275 A CN102841275 A CN 102841275A
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CN
China
Prior art keywords
line monitoring
arrester
lightning arrester
described
monitoring system
Prior art date
Application number
CN2012102956909A
Other languages
Chinese (zh)
Inventor
羊磊
潘存良
丁立云
其他发明人请求不公开姓名
Original Assignee
安徽电力天长供电有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 安徽电力天长供电有限责任公司 filed Critical 安徽电力天长供电有限责任公司
Priority to CN2012102956909A priority Critical patent/CN102841275A/en
Publication of CN102841275A publication Critical patent/CN102841275A/en

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Abstract

The invention discloses an on-line monitoring system of an arrestor, relating to the technical field of monitoring devices. The on-line monitoring system is characterized by consisting of an arrester on-line monitor arranged on a spot and monitoring management analysis software in a monitoring center, wherein the arrestor on-line monitor is arranged on the spot and used for monitoring the leakage current of the arrestor in real time by a sampling sensor and sending the leakage current condition to the monitoring center by an RS485 network, and the monitoring center is responsible for receiving the real-time monitoring value of the arrestor on-line monitor by the RS485 network and achieving the functions of real-time display of state parameters of the arrestor, historical data recording and contrastive analysis, prewarning and alarming, all-course recording of running state and report printing and parameter setting. The on-line monitoring system disclosed by the invention has the capabilities of making an accurate judgment on the running state of the arrester, avoiding unnecessary accidents and dangers, greatly improving the safety of a power grid and guaranteeing ordered and normal life of people.

Description

Arrester on-line monitoring system

Technical field

The present invention relates to the monitoring device technical field, be specifically related to a kind of arrester on-line monitoring system.

Background technology

The lightning arrester of electric substation is protection power equipment security of operation, prevents the important protective device of lightning strike accident, and lightning arrester can be in high pressure under the long-term safety operation, be that lightning arrester is carried out the important content that security performance is monitored.Cause large-area power-cuts for preventing that aging or self the insulation damages of lightning arrester is explosion caused; People have taked annual lightning arrester is had a power failure to detect or in the ground loop of lightning arrester, seal in 1 reometer; Utilize manual patrol, the reading of recording ammeter is judged the aging and insulation damages degree of lightning arrester.

Fact proved that the reading that depends on artificial 24 h or make an inspection tour 1 primary current table is weekly monitored the deterioration condition of lightning arrester, on the instantaneity of finding fault, has big defective.Deterioration process lightning arrester faster possibly just blasted before following 1 tour fully, and the explosion accident of similar this situation took place repeatedly.Therefore, solving the online auto monitoring under the lightning arrester running status, is one of electric system important content of realizing the high-tension apparatus on-line condition monitoring that the unattended urgent need of electric substation solves.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of arrester on-line monitoring system of realizing the functions such as real-time demonstration, historgraphic data recording and comparative analysis, early warning and warning, running status whole process record and report printing of lightning arrester state parameter.

Technical matters to be solved by this invention adopts following technical scheme to realize,

A kind of arrester on-line monitoring system; It is characterized in that: form by being installed on the on-the-spot lightning arrester on-line monitoring device and the monitoring management analysis software of Surveillance center; Described lightning arrester on-line monitoring device is installed in the scene; Monitor the leakage current of lightning arrester in real time through sampling detector; And sending to Surveillance center through the RS485 network, Surveillance center is responsible for receiving through the RS485 network the real-time monitor value of lightning arrester on-line monitoring device, realizes that the demonstration in real time of lightning arrester state parameter, historgraphic data recording and comparative analysis, early warning and warning, the omnidistance record of running status and report printing, parameter are provided with function.

Described lightning arrester on-line monitoring device comprises a highly sensitive survey sensor, high precision prime amplifier, total current observation circuit, current in resistance property observation circuit, total current Displaying Meter, discharge counter, embedded system and RS 485 communication interfaces composition.

Described survey sensor is connected to prime amplifier; Described prime amplifier is connected to the total current observation circuit; Described total current observation circuit connects the current in resistance property observation circuit, and described current in resistance property observation circuit connects the total current Displaying Meter, and described total current Displaying Meter connects discharge counter; Described discharge counter connects embedded system, and described embedded system is connected to Surveillance center through the RS485 communication interface.

In the three-phase lightning protector monitoring system 3 lightning arrester on-line monitoring devices are arranged, be installed in the same stainless steel casing, adopt a Switching Power Supply power supply, Monitoring Data is sent to Surveillance center through RS 485 networks.

The invention has the beneficial effects as follows:

(1) system adopts up-to-date embedded Control technology and modern sensor detection technique, and system works is stablized, reported to the police in time, accurately and reliably.

(2) the unmanned on-line monitoring of realization transformer station Zinc-Oxide Arrester equipment is through monitoring current in resistance property or total current, the security of operation state of more accurate and effective judgement lightning arrester.

(3) realization transformer station Zinc-Oxide Arrester equipment operating data is uploaded, and reduces hurrying back and forth back and forth of operating personnel and checks meter, and increases work efficiency greatly, and it is intelligent to have strengthened substation equipment, and networking is accumulated experience for improving the substation automation level; Improve electric substation and move real-time monitoring level, reduce handling cost.

(4) centralized management service data is made judgement accurately to the running status of lightning arrester, avoids unnecessary accident and danger, has improved power grid security greatly, has ensured that people's lives in order, normally.

(5) system monitoring administrative analysis software can with electric substation's collection control center link, sharing data resources, and can realize the management functions such as real time print, analysis of lightning arrester status monitoring data.

Description of drawings

Fig. 1 is a principle of the invention block scheme;

Fig. 2 is a lightning arrester on-line monitoring device functional-block diagram of the present invention.

Embodiment

For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.

As shown in Figure 1; A kind of arrester on-line monitoring system; Form by being installed on the on-the-spot lightning arrester on-line monitoring device and the monitoring management analysis software of Surveillance center; Lightning arrester on-line monitoring device is installed in the scene, and the process sampling detector is monitored the leakage current of lightning arrester in real time, and sends to Surveillance center through the RS485 network; Surveillance center is responsible for receiving through the RS485 network the real-time monitor value of lightning arrester on-line monitoring device, realizes that the demonstration in real time of lightning arrester state parameter, historgraphic data recording and comparative analysis, early warning and warning, the omnidistance record of running status and report printing, parameter are provided with function.

As shown in Figure 2, lightning arrester on-line monitoring device comprises a highly sensitive survey sensor, high precision prime amplifier, total current observation circuit, current in resistance property observation circuit, total current Displaying Meter, discharge counter, embedded system and RS 485 communication interfaces composition.Survey sensor is connected to prime amplifier; Prime amplifier is connected to the total current observation circuit; The total current observation circuit connects the current in resistance property observation circuit, and the current in resistance property observation circuit connects the total current Displaying Meter, and the total current Displaying Meter connects discharge counter; Discharge counter connects embedded system, and embedded system is connected to Surveillance center through the RS485 communication interface.In the three-phase lightning protector monitoring system 3 lightning arrester on-line monitoring devices are arranged, be installed in the same stainless steel casing, adopt a Switching Power Supply power supply, Monitoring Data is sent to Surveillance center through RS 485 networks.The signal deteching circuit of lightning arrester on-line monitoring device is made up of highly sensitive survey sensor, high precision prime amplifier, total current observation circuit, current in resistance property observation circuit etc.; To realize accurate measurement to leakage current of an arrester; And owing to what adopt is the current measurement mode of noncontact, thereby has solved the electrical isolation problem of high-tension apparatus current measurement.

More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the instructions just explains principle of the present invention; Under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.

Claims (4)

1. arrester on-line monitoring system; It is characterized in that: form by being installed on the on-the-spot lightning arrester on-line monitoring device and the monitoring management analysis software of Surveillance center; Described lightning arrester on-line monitoring device is installed in the scene; Monitor the leakage current of lightning arrester in real time through sampling detector; And sending to Surveillance center through the RS485 network, Surveillance center is responsible for receiving through the RS485 network the real-time monitor value of lightning arrester on-line monitoring device, realizes that the demonstration in real time of lightning arrester state parameter, historgraphic data recording and comparative analysis, early warning and warning, the omnidistance record of running status and report printing, parameter are provided with function.
2. arrester on-line monitoring system according to claim 1 is characterized in that: described lightning arrester on-line monitoring device comprises a highly sensitive survey sensor, high precision prime amplifier, total current observation circuit, current in resistance property observation circuit, total current Displaying Meter, discharge counter, embedded system and RS 485 communication interfaces composition.
3. arrester on-line monitoring system according to claim 2; It is characterized in that: described survey sensor is connected to prime amplifier; Described prime amplifier is connected to the total current observation circuit; Described total current observation circuit connects the current in resistance property observation circuit, and described current in resistance property observation circuit connects the total current Displaying Meter, and described total current Displaying Meter connects discharge counter; Described discharge counter connects embedded system, and described embedded system is connected to Surveillance center through the RS485 communication interface.
4. arrester on-line monitoring system according to claim 1; It is characterized in that: 3 lightning arrester on-line monitoring devices are arranged in the three-phase lightning protector monitoring system; Be installed in the same stainless steel casing, adopt a Switching Power Supply power supply, Monitoring Data is sent to Surveillance center through RS 485 networks.
CN2012102956909A 2012-08-20 2012-08-20 On-line monitoring system of arrester CN102841275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012102956909A CN102841275A (en) 2012-08-20 2012-08-20 On-line monitoring system of arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012102956909A CN102841275A (en) 2012-08-20 2012-08-20 On-line monitoring system of arrester

Publications (1)

Publication Number Publication Date
CN102841275A true CN102841275A (en) 2012-12-26

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CN (1) CN102841275A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259666A (en) * 1978-11-21 1981-03-31 Tokyo Shibaura Denki Kabushiki Kaisha Apparatus for detecting degradation of characteristics of arresters
JPH08255666A (en) * 1995-03-16 1996-10-01 Nissin Electric Co Ltd Arrester deterioration monitoring device
JPH10255953A (en) * 1997-03-06 1998-09-25 Mitsubishi Electric Corp Leak current detecting device for arrester
JP2002340971A (en) * 2001-05-11 2002-11-27 Toshiba Corp Deterioration diagnostic system for arrestor
CN1564002A (en) * 2004-04-06 2005-01-12 常州市武进恒昌机械厂 On-line monitor of lighting arrester
CN1811477A (en) * 2006-02-15 2006-08-02 上海涌能电力科技发展有限公司 Lightning arrester leakage current and action frequency real-time monitoring system
CN201007846Y (en) * 2006-11-07 2008-01-16 西安神电电器有限公司 On-line monitoring system for lightning arrester

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259666A (en) * 1978-11-21 1981-03-31 Tokyo Shibaura Denki Kabushiki Kaisha Apparatus for detecting degradation of characteristics of arresters
JPH08255666A (en) * 1995-03-16 1996-10-01 Nissin Electric Co Ltd Arrester deterioration monitoring device
JPH10255953A (en) * 1997-03-06 1998-09-25 Mitsubishi Electric Corp Leak current detecting device for arrester
JP2002340971A (en) * 2001-05-11 2002-11-27 Toshiba Corp Deterioration diagnostic system for arrestor
CN1564002A (en) * 2004-04-06 2005-01-12 常州市武进恒昌机械厂 On-line monitor of lighting arrester
CN1811477A (en) * 2006-02-15 2006-08-02 上海涌能电力科技发展有限公司 Lightning arrester leakage current and action frequency real-time monitoring system
CN201007846Y (en) * 2006-11-07 2008-01-16 西安神电电器有限公司 On-line monitoring system for lightning arrester

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Application publication date: 20121226