CN102829887A - On-line monitoring system for temperature of electric node - Google Patents
On-line monitoring system for temperature of electric node Download PDFInfo
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- CN102829887A CN102829887A CN2012102966578A CN201210296657A CN102829887A CN 102829887 A CN102829887 A CN 102829887A CN 2012102966578 A CN2012102966578 A CN 2012102966578A CN 201210296657 A CN201210296657 A CN 201210296657A CN 102829887 A CN102829887 A CN 102829887A
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Abstract
The invention discloses an on-line monitoring system for temperature of an electric node, and relates to the technical field of monitoring devices. The on-line monitoring system is characterized by comprising an equipotential wireless sensing and monitoring probe, a communication base station and a monitoring center, wherein the equipotential wireless sensing and monitoring probe is arranged on the measured electric node, the equipotential wireless sensing and monitoring probe comprises a digital temperature sensor, the real-time temperature of the electric node is collected through the digital temperature sensor, is transmitted to a receiving base station through a wireless communication manner and is transmitted to the monitoring center through Ethernet, so that the problem of electric isolation of data transmission is solved, and the on-line monitoring system for the temperature of the electric node is safely and reliably operated. According to the invention, the conventional manual polling detection manner of a power sector for heating temperature of the node of the operating electric equipment of a substation for a long time is replaced, the safety operation level of the substation is greatly improved, accidents are prevented and reduced, and the remarkable social benefit and economic benefit are certainly produced.
Description
Technical field
The present invention relates to the monitoring device technical field, be specifically related to
A kind of electrical nodal temperature online monitoring system
Background technology
The electric system of China at present is towards the direction fast development of big electrical network, high reliability, high automation level.Operation of power networks robotization, intelligent monitoring level have been become the key issue of China's power system development.Along with the economic development of China, social power consumption also increases day by day, is carrying big electric weight and is carrying the electrical load of high voltage electric equipment such as the transformer of task, mutual inductor, disconnecting link, high-tension switch cabinet, cable etc. also increasing sharply.
Tie point in the electrical network between numerous high voltage electric equipments is that electric power is carried weakest link.Because in the long-time running process, these tie points can because of oxidation corrosion wear out or because of reasons such as fastening bolt is loosening to contact resistance is increased.And generate heat along with the increase of load, temperature rise, expansion, contraction, oxidation, resistance increases, heating up once again forms vicious cycle until leading to a disaster.According to State Grid security incident circular statistics, China occurs over just the electric power accident in power station every year, have 40% be by high voltage electric equipment overheated due to.The temperature variation of therefore monitoring the high pressure tie point is very important.Realize that on-line temperature monitoring is the important means that guarantees the high-tension apparatus safe operation.
Under the hyperbaric environment there be thermometric common method:
1, wax disk(-sc) thermometry:
The color of thermometric paraffin sheet changes with variation of temperature, can judge dut temperature according to its color, uses commonplace at present.Advantage is simple, with low cost.Shortcoming is that accuracy is low, poor reliability (because judging temperature with the personal experience fully), can not carry out quantitative measurment, can not realize real time on-line monitoring.And, can't measure because when operation, almost cannot see easy heating position such as high-voltage switch gear contact, cable splice.
2, thermal infrared thermometry:
Comprise infrared temperature-measuring gun, far infrared imagery appearance etc. belong to contactless temperature-measuring.Advantage is that measurement range is big, and accuracy is higher, and reliability is better.Shortcoming is an apparatus expensive.And need a large amount of manpowers regularly to patrol survey, can't realize the real time on-line monitoring of temperature.And the position of the equipment such as isolating switch dynamic/static contact of a large amount of at present handcart switch cabinets inside of using is hidden, and infrared thermometer can't carry out thermometric.In addition, infrared thermometer must be avoided the background interference of sunshine, generally needs in night or overcast and rainy measurement.
3, optical fiber grating temperature-measuring technology:
As temperature sensor, be installed in the surface of charged object with lenticular lenses, be connected with optical fiber between temperature measurer and temperature sensor.It is to utilize the linear relationship of reflection wave wavelength and temperature to realize the measurement of temperature.Shortcoming is that optical fiber is easy to break, easily broken, non-refractory.Though itself insulate optical fiber, behind the accumulation dust, especially under wet environment, be prone to make insulating property to reduce, cause the optical fiber creeping discharge.This will have a strong impact on security of operation, and the Installation and Debugging workload is big, and cost is high, and the price of a spectroanalysis instrument is more than 100,000.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of
electrical nodal temperature online monitoring system of realizing functions such as temperature demonstration in real time, historgraphic data recording and comparative analysis, early warning and warning, the omnidistance record of running status and report printing.
Technical matters to be solved by this invention adopts following technical scheme to realize,
a kind of electrical nodal temperature online monitoring system; It is characterized in that: comprise that equipotential wireless sensing monitoring probe, communication base station and Surveillance center constitute; Described equipotential wireless sensing monitoring probe is installed on the tested electrical nodal; Described equipotential wireless sensing monitoring probe comprises digital temperature sensor, gathers the real time temperature of electrical nodal through digital temperature sensor, thereby has guaranteed the accuracy of measured temperature; Send to the reception base station via wireless communication mode; And be sent to Surveillance center via Ethernet, thus having solved the electrical isolation problem of data transmission, the electrical nodal temperature online monitoring system is safe and reliable to operation.
described communication base station is divided into dominant base and subbase station; Said subbase station be responsible for receiving have jurisdiction over the real time temperature measured value of each equipotential wireless sensing probe and be transmitted to dominant base; Said dominant base is responsible for receiving the real time temperature measured value at each subbase station of having jurisdiction over and is transmitted to Surveillance center; Surveillance center is responsible for receiving the real time temperature measured value of each dominant base of having jurisdiction over; The temperature that shows each electric tieing in real time is to supervision and management functions such as overtemperature early warning value, the critical alarming value of overtemperature, communication network parameter are provided with.
Adopt communication to carry out data communication between
described equipotential wireless senser probe and the communication base station.
Adopt communication or RS485 bus communication mode to carry out data communication between
said subbase station and the dominant base, carry out data communication through Ethernet between Surveillance center and the dominant base.
The invention has the beneficial effects as follows:
1. reduce the urgent and significant deficiency that temperature rise brings in a large number, can reduce the frequency of temporary interruption maintenance, not only reduced the economic benefit of loss, more can retrieve the loss of the social benefit that causes because of ad hoc inspection and repair;
2. replaced traditional transformer station's manual inspection thermometric, reduced transformer station's work of maintenance personnel amount, can let the operations staff monitor the temperature conditions of each transformer station in real time simultaneously, the temperature rise situation has been carried out early warning, be convenient to monitoring and overall arrangement plan and handle;
3. the statistics that managerial personnel can be through data, inquire about, browse, analysis, data derive and printing function, finds out relative thin weak transformer station or electrical nodal, lists the annual overhaul plan in or combine preventive trial to handle, and improves the equipment operation reliability.
Description of drawings
Fig. 1 is a principle of the invention block scheme.
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 electrical nodal temperature online monitoring system comprises that equipotential wireless sensing monitoring probe, communication base station and Surveillance center constitute; Equipotential wireless sensing monitoring probe is installed on the tested electrical nodal; Equipotential wireless sensing monitoring probe comprises digital temperature sensor, gathers the real time temperature of electrical nodal through digital temperature sensor, thereby has guaranteed the accuracy of measured temperature; Send to the reception base station via wireless communication mode; And be sent to Surveillance center via Ethernet, thus having solved the electrical isolation problem of data transmission, the electrical nodal temperature online monitoring system is safe and reliable to operation.
Communication base station is divided into dominant base and subbase station; The subbase station be responsible for receiving have jurisdiction over the real time temperature measured value of each equipotential wireless sensing probe and be transmitted to dominant base; Dominant base is responsible for receiving the real time temperature measured value at each subbase station of having jurisdiction over and is transmitted to Surveillance center, and Surveillance center is responsible for receiving the real-time temperature of each dominant base of having jurisdiction over
Spend measured value, show the temperature of each electric tieing in real time, supervision and management functions such as overtemperature early warning value, the critical alarming value of overtemperature, communication network parameter are provided with.Adopt communication to carry out data communication between equipotential wireless senser probe and the communication base station.Adopt communication or RS485 bus communication mode to carry out data communication between subbase station and the dominant base, carry out data communication through Ethernet between Surveillance center and the dominant base.
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 (5)
1.
electrical nodal temperature online monitoring system; It is characterized in that: comprise that equipotential wireless sensing monitoring probe, communication base station and Surveillance center constitute; Described equipotential wireless sensing monitoring probe is installed on the tested electrical nodal, and described equipotential wireless sensing monitoring probe comprises digital temperature sensor, gathers the real time temperature of electrical nodal through digital temperature sensor; Send to the reception base station via wireless communication mode; And be sent to Surveillance center via Ethernet, and having solved the electrical isolation problem of data transmission, the electrical nodal temperature online monitoring system is safe and reliable to operation.
2. according to claim 1
The electrical nodal temperature online monitoring system,It is characterized in that:
Described communication base station is divided into dominant base and subbase station; Said subbase station be responsible for receiving have jurisdiction over the real time temperature measured value of each equipotential wireless sensing probe and be transmitted to dominant base; Said dominant base is responsible for receiving the real time temperature measured value at each subbase station of having jurisdiction over and is transmitted to Surveillance center; Surveillance center is responsible for receiving the real time temperature measured value of each dominant base of having jurisdiction over; Show the temperature of each electric tieing in real time, overtemperature early warning value, the critical alarming value of overtemperature, communication network parameter are provided with supervision and management function.
3. according to claim 1
The electrical nodal temperature online monitoring system,It is characterized in that:
Adopt communication to carry out data communication between described equipotential wireless senser probe and the communication base station.
4. according to claim 2
The electrical nodal temperature online monitoring system,It is characterized in that:
Adopt communication or RS485 bus communication mode to carry out data communication between said subbase station and the dominant base.
5. according to claim 1
The electrical nodal temperature online monitoring system,It is characterized in that: described
Carry out data communication through Ethernet between Surveillance center and the dominant base.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102966578A CN102829887A (en) | 2012-08-20 | 2012-08-20 | On-line monitoring system for temperature of electric node |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102966578A CN102829887A (en) | 2012-08-20 | 2012-08-20 | On-line monitoring system for temperature of electric node |
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| CN102829887A true CN102829887A (en) | 2012-12-19 |
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| CN2012102966578A Pending CN102829887A (en) | 2012-08-20 | 2012-08-20 | On-line monitoring system for temperature of electric node |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236752A (en) * | 2014-09-17 | 2014-12-24 | 国家电网公司 | Oil-immersed transformer temperature measuring system |
| CN109725588A (en) * | 2018-11-28 | 2019-05-07 | 中国科学院近代物理研究所 | A kind of temperature monitoring system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757676U (en) * | 2010-03-16 | 2011-03-09 | 杭州千目电力科技有限公司 | Temperature intelligent on-line monitoring system |
| CN202093670U (en) * | 2011-06-22 | 2011-12-28 | 成都星宇节能技术股份有限公司 | Wireless temperature measuring system based on electrical power system |
| CN202748157U (en) * | 2012-08-20 | 2013-02-20 | 安徽电力天长供电有限责任公司 | Online monitoring system for electric node temperature |
-
2012
- 2012-08-20 CN CN2012102966578A patent/CN102829887A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201757676U (en) * | 2010-03-16 | 2011-03-09 | 杭州千目电力科技有限公司 | Temperature intelligent on-line monitoring system |
| CN202093670U (en) * | 2011-06-22 | 2011-12-28 | 成都星宇节能技术股份有限公司 | Wireless temperature measuring system based on electrical power system |
| CN202748157U (en) * | 2012-08-20 | 2013-02-20 | 安徽电力天长供电有限责任公司 | Online monitoring system for electric node temperature |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236752A (en) * | 2014-09-17 | 2014-12-24 | 国家电网公司 | Oil-immersed transformer temperature measuring system |
| CN109725588A (en) * | 2018-11-28 | 2019-05-07 | 中国科学院近代物理研究所 | A kind of temperature monitoring system and method |
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Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: ANHUI ELECTRIC POWER TIANCHANG POWER SUPPLY CO., LTD. Effective date: 20130225 |
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Free format text: CORRECT: ADDRESS; FROM: 239300 CHUZHOU, ANHUI PROVINCE TO: 100031 DONGCHENG, BEIJING |
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Effective date of registration: 20130225 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Applicant after: State Grid Corporation of China Address before: 239300, No. two, Heng Lu, 45 Town, Tianchang, Anhui, Chuzhou Applicant before: Anhui Electric Power Tianchang Power Supply Co., Ltd. |
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Application publication date: 20121219 |