CN102095765A - System for measuring content of micro water in transformer oil on line - Google Patents
System for measuring content of micro water in transformer oil on line Download PDFInfo
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- CN102095765A CN102095765A CN2009102010172A CN200910201017A CN102095765A CN 102095765 A CN102095765 A CN 102095765A CN 2009102010172 A CN2009102010172 A CN 2009102010172A CN 200910201017 A CN200910201017 A CN 200910201017A CN 102095765 A CN102095765 A CN 102095765A
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- transformer oil
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- water content
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Abstract
The invention relates to a system for measuring the content of micro water in transformer oil on line, and belongs to the technical field of transformer monitoring. The system for measuring the content of the micro water in the transformer oil on line comprises a humidity sensor, a temperature sensor, a filtering unit, a detection unit, an amplifying unit, a data processing server and a client monitoring system. The on-line measuring system has stable and reliable performance, high anti-jamming capability and high measuring accuracy, and is conveniently and quickly operated.
Description
Technical field
The present invention relates to a kind of utility appliance of power equipment, especially relate to the on-line measurement system of micro-water content in a kind of transformer oil.
Background technology
Enlarging day by day of structure and improving constantly of voltage apparatus grade along with power industry, the maintenance of transformer is more and more important, and wherein the moisture measurement in the transformer oil become transformer safeguard in a very heavy part, water cut in the oil has decisive action in essence in the safe operation of transformer, the content of moisture plays decisive influence to the insulativity of transformer oil, too much water cut will speed up the aging of insulating material in the oil, and reduction insulativity, and then cause the instability and the potential danger of equipment operation, can cause coil to produce arc ring and short circuit phenomenon when water content is big, even can blast in some cases etc.According to GB50150-2006 " Erection works of electrical installations Standard for handover test of electric equipment ", the measurement of minor amount of water must meet certain regulation in the oil.Micro-water content in the offline inspection insulating oil of laboratory, complicated operation is wayward, and especially oil and water separation link realizes that difficulty is big, and from getting oil to the complicated cost height of testing process, real-time is poor to the laboratory distance for transformer simultaneously; Online little water monitoring is effectively replenishing of the little water monitoring in laboratory and perfect.
Application number be CN200820056711 patent disclosure be used for the injector of transformer oil determination of moisture in a kind of gas chromatograph, this kind detection method is highly sensitive, interference is little, but operation is complicated, general technician be difficult to hold and equipment requirements higher.The present invention is by providing a kind of on-line measurement system with humidity sensor and temperature sensor, realized simple and efficient to handlely, and the accuracy of measurement height guarantees the transformer purpose of safe operation.
Summary of the invention
The invention provides the on-line measurement system of micro-water content in a kind of transformer oil, it comprises humidity sensor, temperature sensor, filter unit, detection unit, amplifying unit, data processing server, client's monitoring terminal.
Wherein, described humidity sensor is aluminium oxide humidity sensor or fringing field condenser type hygrometric sensor; Described temperature sensor is the polyimide capacitive temperature sensor; Described client's monitoring terminal is equipped with the micro-moisture fault diagnosis software.
The present invention has reached easy and simple to handle by the micro-water content in the on-line measurement transformer oil, accuracy of measurement height, the purpose of strong anti-interference performance.
Description of drawings
Fig. 1 is the device connection diagram of the on-line measurement system of micro-water content in the transformer oil of the present invention.
Embodiment
As shown in Figure 1, be the device connection diagram of little water on-line monitoring system in the transformer oil of the present invention.The invention provides the on-line measurement system of micro-water content in a kind of transformer oil, it comprises humidity sensor, temperature sensor, filter unit, detection unit, amplifying unit, data processing server, client's monitoring terminal.
Wherein, described humidity sensor is aluminium oxide humidity sensor or fringing field condenser type hygrometric sensor; Described temperature sensor is the polyimide capacitive temperature sensor; Described client's monitoring terminal is equipped with the micro-moisture fault diagnosis software.
In measure field, because the oil temperature of transformer can produce considerable influence to the measurement result of humidity sensor, micro-water content in certain time monitoring transformer oil is as the criterion, the oil circuit that places transformer to flow simultaneously Kapton capacitive temperature sensor measuring sonde and aluminium oxide humidity sensor or fringing field condenser type hygrometric sensor measurement probe, collecting temperature and moisture signal, the variation of the electric signal that is collected is through filter unit, detection unit, after amplifying unit is handled, enter data processing server, client's monitoring terminal is equipped with the micro-moisture fault diagnosis software, check moisture and oil temperature in the measured transformer oil, and, judge whether to produce the fault that relevant therewith fault or prediction will take place according to the transformer water content in oil.
Embodiment among the present invention only is used for that the present invention will be described, does not constitute the restriction to the claim scope, and other substituting of being equal in fact that those skilled in that art can expect are all in protection domain of the present invention.
Claims (5)
1. the on-line measurement system of micro-water content in the transformer oil is characterized in that comprising humidity sensor, temperature sensor, filter unit, detection unit, amplifying unit, data processing server, client's monitoring terminal.
2. the on-line measurement system of micro-water content is characterized in that in the transformer oil as claimed in claim 1, and described humidity sensor is the aluminium oxide humidity sensor.
3. the on-line measurement system of micro-water content is characterized in that in the transformer oil as claimed in claim 1, and described humidity sensor is a fringing field condenser type hygrometric sensor.
4. the on-line measurement system of micro-water content is characterized in that in the transformer oil as claimed in claim 1, and described temperature sensor is the polyimide capacitive temperature sensor.
5. the on-line measurement system of micro-water content is characterized in that in the transformer oil as claimed in claim 1, and described client's monitoring terminal is equipped with the micro-moisture fault diagnosis software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102010172A CN102095765A (en) | 2009-12-11 | 2009-12-11 | System for measuring content of micro water in transformer oil on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102010172A CN102095765A (en) | 2009-12-11 | 2009-12-11 | System for measuring content of micro water in transformer oil on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102095765A true CN102095765A (en) | 2011-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102010172A Pending CN102095765A (en) | 2009-12-11 | 2009-12-11 | System for measuring content of micro water in transformer oil on line |
Country Status (1)
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| CN (1) | CN102095765A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749438A (en) * | 2012-06-25 | 2012-10-24 | 广西电网公司电力科学研究院 | On-line detection device of trace moisture in operating transformer oil |
| CN102749363A (en) * | 2012-06-25 | 2012-10-24 | 广西电网公司电力科学研究院 | On-line detection system of insulation paper trace moisture in operating transformer oil |
| CN103900839A (en) * | 2012-12-28 | 2014-07-02 | 华北电力科学研究院有限责任公司 | Method and system for monitoring respirator in transformer |
| CN105097204A (en) * | 2015-08-27 | 2015-11-25 | 安徽西高电气设备有限公司 | Self-test transformer |
| CN105116024A (en) * | 2015-08-31 | 2015-12-02 | 中国电子科技集团公司第四十八研究所 | Online monitoring system for hydrogen in power transformer oil based on thin film technology |
| CN105158445A (en) * | 2015-09-11 | 2015-12-16 | 四川菲博斯科技有限责任公司 | Online monitoring system for micro water content of transformer oil |
| CN108828029A (en) * | 2018-08-14 | 2018-11-16 | 天津大学 | Moisture percentage measuring apparatus based on plug-in capacitance sensor |
-
2009
- 2009-12-11 CN CN2009102010172A patent/CN102095765A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749438A (en) * | 2012-06-25 | 2012-10-24 | 广西电网公司电力科学研究院 | On-line detection device of trace moisture in operating transformer oil |
| CN102749363A (en) * | 2012-06-25 | 2012-10-24 | 广西电网公司电力科学研究院 | On-line detection system of insulation paper trace moisture in operating transformer oil |
| CN103900839A (en) * | 2012-12-28 | 2014-07-02 | 华北电力科学研究院有限责任公司 | Method and system for monitoring respirator in transformer |
| CN103900839B (en) * | 2012-12-28 | 2016-03-23 | 华北电力科学研究院有限责任公司 | A kind of method and system of monitoring respirator in transformer |
| CN105097204A (en) * | 2015-08-27 | 2015-11-25 | 安徽西高电气设备有限公司 | Self-test transformer |
| CN105116024A (en) * | 2015-08-31 | 2015-12-02 | 中国电子科技集团公司第四十八研究所 | Online monitoring system for hydrogen in power transformer oil based on thin film technology |
| CN105158445A (en) * | 2015-09-11 | 2015-12-16 | 四川菲博斯科技有限责任公司 | Online monitoring system for micro water content of transformer oil |
| CN108828029A (en) * | 2018-08-14 | 2018-11-16 | 天津大学 | Moisture percentage measuring apparatus based on plug-in capacitance sensor |
| CN108828029B (en) * | 2018-08-14 | 2020-10-23 | 天津大学 | Moisture content measuring device based on plug-in capacitive sensor |
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Application publication date: 20110615 |