CN105158445A - Online monitoring system for micro water content of transformer oil - Google Patents
Online monitoring system for micro water content of transformer oil Download PDFInfo
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- CN105158445A CN105158445A CN201510579337.7A CN201510579337A CN105158445A CN 105158445 A CN105158445 A CN 105158445A CN 201510579337 A CN201510579337 A CN 201510579337A CN 105158445 A CN105158445 A CN 105158445A
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Abstract
The invention relates to an online monitoring system for micro water content of transformer oil. The online monitoring system is characterized by comprising a monitoring center, an industrial personal computer, a monitoring control module, a micro water sensor, a temperature sensor, a signal processing unit, a digital sampling module, a diagnosis unit and a switch module, wherein the monitoring center is provided with a main server and a man-machine interface, and the main server is connected with the man-machine interface and the industrial personal computer positioned at a transformer end. According to the online monitoring system, the structure volume is small, modularized structure is adopted, and the installation is convenient due to fastened stacking; not only can the water and temperature in the transformer oil be subjected to online monitoring in real time, but also a user can master the practical running data of the oil quality in a transformer at any time, scientific theoretical data is provided for analyzing and judging the safety condition of the transformer, manpower can be saved, and the maintenance cost of the transformer can be lowered.
Description
Technical field
The present invention relates to electrical equipment monitoring technical field, specifically a kind of content of micro water in transformer oil on-line monitoring system.
Background technology
Along with the overall fast development to bulk power grid, large-sized unit, high power capacity of power industry, more and more higher technical requirement is proposed to the real-time grasp of critical electrical equipment running status.In transformer oil, moisture mainly exists with dissolved water, water in suspension, connate water three kinds of forms.Although the dissolved water in transformer oil does not make significant difference to dielectric strength, it can improve the acidity of oil, reduces oil oxidation stability, accelerates oil ageing.In the operational process of transformer, along with improving constantly of oil temperature, dissolved water can produce vapour bubble in oil, reduces voltage breakdown and the shelf depreciation field intensity of oil, causes insulation breakdown and shelf depreciation, have a strong impact on the normal operation of transformer.Suspended water is larger to oil harm, can produce free electric discharge, accelerate the corrosion of metalwork in oil deterioration and oil, reduce the voltage breakdown of oil, increase the dielectric loss of oil under high-voltage electric field; Moisturize simultaneously and condense in the possibility on transformer solid insulation surface, cause solid insulation surface shelf depreciation and puncture, finally making solid insulation surface insulation performance decline.Be filled with the oil of power transformer product, do not allow to there is suspended state moisture, more do not allowed connate water to occur.There is the micro-water of many transformer oil to detect and usually adopt transformer oil sampling, use in laboratory red, orange, green, blue, yellow (ROGBY), karl Fischer reagent method or coulometry to detect sample.These method precision are high, and Monitoring lower-cut can reach 1,000,000/, but it is smelly, seriously polluted to there is chemical reagent (pyridine) smell, and standard reagent needs the shortcomings such as now with the current; The more important thing is the ability of not monitoring in real time, the mode of " periodic oil change " can only be adopted to carry out trouble-saving generation, cause a large amount of human and material resources and the waste of financial resources.Solve the problem so need a kind of content of micro water in transformer oil on-line monitoring system badly.
Summary of the invention
Not enough for above-mentioned prior art, the invention provides a kind of content of micro water in transformer oil on-line monitoring system.
Content of micro water in transformer oil on-line monitoring system provided by the invention is achieved through the following technical solutions:
A kind of content of micro water in transformer oil on-line monitoring system, it is characterized in that: comprise Surveillance center, industrial computer, Monitoring and Controlling module, micro-water sensor, temperature sensor, signal processing unit, digital sample module, diagnosis unit, switch module, described Surveillance center arranges master server and man-machine interface, described master server is connected with man-machine interface and the industrial computer being positioned at transformer terminal respectively, described industrial computer, Monitoring and Controlling module, micro-water sensor, temperature sensor, signal processing unit, digital sample module, diagnosis unit, switch module is arranged on transformer terminal, described industrial computer respectively with Monitoring and Controlling module, signal processing unit, digital sample module, diagnosis unit, switch module connects, described micro-water sensor, temperature sensor and Monitoring and Controlling model calling.
Described on-line monitoring system adopts industrial RS485 bus interface.
The invention has the beneficial effects as follows:
1, native system framework volume is little, adopts modular construction, and secured stacked is convenient installs, testing apparatus has a wide range of applications.
2, not only real time and on line monitoring can be realized to the moisture in transformer oil and temperature, and user can be allowed to grasp the actual operating data of oil in transformer at any time, for analyzing, judging that the safety case of transformer provides the gross data of science, can manpower be saved, reduce the maintenance cost of transformer;
3, trouble-savingly can occur, extend the serviceable life of transformer;
4, monitor signal carries out data conversion at the scene, by digital signal, data is sent to Surveillance center, and eliminate the undesired signal of long range propagation coupling, cable consumption is little, and easy construction, reliability are high, antijamming capability is strong.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of content of micro water in transformer oil on-line monitoring system as shown in Figure 1, it is characterized in that: comprise Surveillance center, industrial computer, Monitoring and Controlling module, micro-water sensor, temperature sensor, signal processing unit, digital sample module, diagnosis unit, switch module, described Surveillance center arranges master server and man-machine interface, described master server is connected with man-machine interface and the industrial computer being positioned at transformer terminal respectively, described industrial computer, Monitoring and Controlling module, micro-water sensor, temperature sensor, signal processing unit, digital sample module, diagnosis unit, switch module is arranged on transformer terminal, described industrial computer respectively with Monitoring and Controlling module, signal processing unit, digital sample module, diagnosis unit, switch module connects, described micro-water sensor, temperature sensor and Monitoring and Controlling model calling.
Further, described on-line monitoring system adopts industrial RS485 bus interface.
In native system, the oil of equipment directly put into by micro-water sensor and temperature sensor, and the micro-water content in sensor detection oil and oil temperature, survey control module and transfer to Surveillance center by after signal transacting, monitor in real time and data analysis.
The above embodiment only represents embodiments of the present invention, and it describes comparatively concrete and detailed, but can not be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to scope.
Claims (2)
1. a content of micro water in transformer oil on-line monitoring system, it is characterized in that: comprise Surveillance center, industrial computer, Monitoring and Controlling module, micro-water sensor, temperature sensor, signal processing unit, digital sample module, diagnosis unit, switch module, described Surveillance center arranges master server and man-machine interface, described master server is connected with man-machine interface and the industrial computer being positioned at transformer terminal respectively, described industrial computer, Monitoring and Controlling module, micro-water sensor, temperature sensor, signal processing unit, digital sample module, diagnosis unit, switch module is arranged on transformer terminal, described industrial computer respectively with Monitoring and Controlling module, signal processing unit, digital sample module, diagnosis unit, switch module connects, described micro-water sensor, temperature sensor and Monitoring and Controlling model calling.
2. content of micro water in transformer oil on-line monitoring system according to claim 1, is characterized in that: described on-line monitoring system adopts industrial RS485 bus interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579337.7A CN105158445A (en) | 2015-09-11 | 2015-09-11 | Online monitoring system for micro water content of transformer oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510579337.7A CN105158445A (en) | 2015-09-11 | 2015-09-11 | Online monitoring system for micro water content of transformer oil |
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| Publication Number | Publication Date |
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| CN105158445A true CN105158445A (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510579337.7A Pending CN105158445A (en) | 2015-09-11 | 2015-09-11 | Online monitoring system for micro water content of transformer oil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891452A (en) * | 2016-05-27 | 2016-08-24 | 国网浙江省电力公司宁波供电公司 | Oil-tank moisture detecting device |
| CN114088922A (en) * | 2021-11-08 | 2022-02-25 | 广东电网有限责任公司广州供电局 | Detection system for transformer insulation aging |
| CN115754249A (en) * | 2022-10-26 | 2023-03-07 | 国家电投集团贵州金元威宁能源股份有限公司 | On-line monitoring system for micro-water content in transformer oil |
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| CN102095765A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | System for measuring content of micro water in transformer oil on line |
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| CN102095764A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | Converter for micro water in transformer oil |
| CN102095763A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | System for monitoring micro water in transformer oil on line |
| CN102103101A (en) * | 2009-12-17 | 2011-06-22 | 上海莫克电子技术有限公司 | Work system for monitoring micro water in transformer oil |
| CN102213712A (en) * | 2011-04-15 | 2011-10-12 | 陈晓林 | Micro-water online monitoring and remote transmission system of transformer |
| CA2838004A1 (en) * | 2012-12-21 | 2014-06-21 | Abb Research Ltd. | Sensor assembly and method for determining the hydrogen and moisture content of transformer oil |
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- 2015-09-11 CN CN201510579337.7A patent/CN105158445A/en active Pending
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| CN102095765A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | System for measuring content of micro water in transformer oil on line |
| CN102095509A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | Forecasting system for micro water content of oil in transformer |
| CN102095764A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | Converter for micro water in transformer oil |
| CN102095763A (en) * | 2009-12-11 | 2011-06-15 | 上海莫克电子技术有限公司 | System for monitoring micro water in transformer oil on line |
| CN102103101A (en) * | 2009-12-17 | 2011-06-22 | 上海莫克电子技术有限公司 | Work system for monitoring micro water in transformer oil |
| CN102213712A (en) * | 2011-04-15 | 2011-10-12 | 陈晓林 | Micro-water online monitoring and remote transmission system of transformer |
| CA2838004A1 (en) * | 2012-12-21 | 2014-06-21 | Abb Research Ltd. | Sensor assembly and method for determining the hydrogen and moisture content of transformer oil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891452A (en) * | 2016-05-27 | 2016-08-24 | 国网浙江省电力公司宁波供电公司 | Oil-tank moisture detecting device |
| CN114088922A (en) * | 2021-11-08 | 2022-02-25 | 广东电网有限责任公司广州供电局 | Detection system for transformer insulation aging |
| CN114088922B (en) * | 2021-11-08 | 2024-03-05 | 广东电网有限责任公司广州供电局 | Detection system for transformer insulation aging |
| CN115754249A (en) * | 2022-10-26 | 2023-03-07 | 国家电投集团贵州金元威宁能源股份有限公司 | On-line monitoring system for micro-water content in transformer oil |
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Application publication date: 20151216 |