CN202119474U - Monitoring device for power transformer - Google Patents
Monitoring device for power transformer Download PDFInfo
- Publication number
- CN202119474U CN202119474U CN2011201781908U CN201120178190U CN202119474U CN 202119474 U CN202119474 U CN 202119474U CN 2011201781908 U CN2011201781908 U CN 2011201781908U CN 201120178190 U CN201120178190 U CN 201120178190U CN 202119474 U CN202119474 U CN 202119474U
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- power transformer
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Abstract
The utility model discloses a monitoring device for a power transformer which is characterized in that: output of a data acquisition cell is connected with an input cell; output of the input cell is connected with a processor; output of the processor is respectively connected with a peripheral cell, a memory cell and an output cell through various ports; output of the output cell is connected with a warning device; the input cell is formed through connection in series of a filter circuit, an A/D switching circuit and a first optoelectronic isolation circuit successively; the output cell is formed through connection in series of a second optoelectronic isolation circuit, an D/A switching circuit and a signal transformation circuit successively; the processor is used for synthesizing and analyzing the obtained information so as to make a judgment for reliability of the power transformer according to the magnitudes and changes of values and to forecast remaining service life of the power transformer, thus being able to detect latent bugs earlier and providing early warning or prescribed operation in necessity; and the monitoring device for a power transformer has simple structure and reliable monitoring.
Description
Technical field
The utility model relates to a kind of monitoring device, particularly the monitoring device of power transformer.
Background technology
The be in operation effect of various factorss such as receiving electricity, heat and external environment condition of power transformer, its performance is deterioration gradually, finally causes fault.Particularly the insulating medium in the power transformer is an organic material, like mineral oil, insulating paper, various organic synthesis materials etc. mostly; These organic materials take place aging easily under the extraneous factor effect; Cause the insulation fault of power transformer, and power transformer is a critical elements of forming electric system, in case fault is arranged; The power failure of part even wide geographic area be will cause, enormous economic loss and social influence caused.Development along with electronic technology, computer technology, photoelectric technology, signal processing technology and various sensing technologies; Can carry out on-line condition monitoring to the various important parameters of power transformer; In time obtain various information, or even faint information can be obtained also.At present, the monitoring device of power transformer also receives Effect of Environmental, and ubiquity is monitored insecure problem.
Summary of the invention
The purpose of the utility model provides a kind of simple in structure, monitoring device easy, the high-efficiency reliable power transformer of programming.
The technical scheme that the utility model adopts is: the output of data acquisition unit connects input block, the output connection processing device of input block, and the output of processor connects peripheral unit, storage unit and output unit respectively through different ports; The output of output unit connects warning device.
Further, data acquisition unit comprises acceleration transducer, ultrasonic sensor, temperature sensor, insulation sensor, discharge sensor and hydrogen gas sensor; Input block is composed in series by filtering circuit, A/D change-over circuit and first photoelectric isolating circuit successively; Output unit is composed in series by second photoelectric isolating circuit, D/A change-over circuit, signaling conversion circuit successively.
The utility model adopts processor that the information of obtaining is carried out overall treatment and analysis; According to the size and the variation tendency of its numerical value, the reliability of power transformer is made judgement at any time, also can make a prediction to the residual life of power transformer; Thereby the fault that the ability early detection is hidden; The operation of early warning or regulation can be provided in case of necessity, and simple in structure, monitoring is reliable.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain;
Fig. 1 is that the structure of the utility model connects synoptic diagram;
Fig. 2 is the composition connection layout of the input block 2 among Fig. 1;
Fig. 3 is the composition connection layout of the output unit 5 among Fig. 1;
Among the figure: 1. data acquisition unit; 2. input block; 3. processor; 4. peripheral unit; 5. output unit; 6. warning device; 7. storage unit; 8. filtering circuit; 9.A/D change-over circuit; 10. first photoelectric isolating circuit; 11. second photoelectric isolating circuit; 12.D/A change-over circuit; 13. signaling conversion circuit.
Embodiment
Like Fig. 1, the utility model comprises data acquisition unit 1, warning device 6 and processor 3, and processor 3 is cores of whole device, adopts 16 monolithic type microprocessors.Data acquisition unit 1 comprises acceleration transducer, ultrasonic sensor, temperature sensor, insulation sensor, discharge sensor and hydrogen gas sensor, gathers the relevant analog data of power transformer respectively.The output of data acquisition unit 1 connects input block 2, the output connection processing device 3 of input block 2, and the output of processor 3 connects peripheral unit 4, storage unit 7 and output unit 5 respectively through different ports, and the output of output unit 5 connects warning device 6.The interface of peripheral unit 4 is used to connect hand-held programmable device, text display etc.Storage unit 7 is used for storage system program, user program and operational data.
As shown in Figure 2, input block 2 is composed in series by filtering circuit 8, A/D change-over circuit 9 and first photoelectric isolating circuit 19 successively.The analog data that data acquisition unit 1 collects at first is input to filtering circuit 8; After filtering, change through A/D change-over circuit 9 again; With analog signal conversion is to transport to first photoelectric isolating circuit 19 after the digital signal, transports to the home loop of processor 3 then and handles.
As shown in Figure 3, output unit 5 is composed in series by second photoelectric isolating circuit 11, D/A change-over circuit 12, signaling conversion circuit 13 successively.After delivering to second photoelectric isolating circuit 11 by the digital signal of processor 3 output by home loop; Convert digital signal into simulating signal by D/A change-over circuit 12 again; Through signaling conversion circuit 13 processing and amplifying; Output drives warning device 6 and reports to the police, and warning device 6 can adopt sound and light alarm device.
Claims (2)
1. the monitoring device of a power transformer; Comprise data acquisition unit (1), warning device (6) and processor (3); It is characterized in that: the output of data acquisition unit (1) connects input block (2); The output connection processing device (3) of input block (2), the output of processor (3) connects peripheral unit (4), storage unit (7) and output unit (5) respectively through different ports; The output of output unit (5) connects warning device (6).
2. the monitoring device of a kind of power transformer according to claim 1, it is characterized in that: data acquisition unit (1) comprises acceleration transducer, ultrasonic sensor, temperature sensor, insulation sensor, discharge sensor and hydrogen gas sensor; Input block (2) is composed in series by filtering circuit (8), A/D change-over circuit (9) and first photoelectric isolating circuit (19) successively; Output unit (5) is composed in series by second photoelectric isolating circuit (11), D/A change-over circuit (12), signaling conversion circuit (13) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201781908U CN202119474U (en) | 2011-05-31 | 2011-05-31 | Monitoring device for power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201781908U CN202119474U (en) | 2011-05-31 | 2011-05-31 | Monitoring device for power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202119474U true CN202119474U (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201781908U Expired - Fee Related CN202119474U (en) | 2011-05-31 | 2011-05-31 | Monitoring device for power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202119474U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401862A (en) * | 2011-05-31 | 2012-04-04 | 镇江泰丰电工设备制造有限公司 | Monitoring system for power transformer |
| CN106526372A (en) * | 2016-10-27 | 2017-03-22 | 成都亚联科科技有限公司 | Automatic transformer function characteristic detection device |
| CN106989782A (en) * | 2017-06-08 | 2017-07-28 | 国网四川省电力公司广元供电公司 | A kind of working state monitoring system of transformer |
| CN110018365A (en) * | 2018-01-08 | 2019-07-16 | 广州东方电科自动化有限公司 | A kind of detection method and system of charging pile failure |
| CN110988542A (en) * | 2019-12-13 | 2020-04-10 | 国网吉林省电力有限公司电力科学研究院 | Data clustering analysis system and method for power equipment |
-
2011
- 2011-05-31 CN CN2011201781908U patent/CN202119474U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102401862A (en) * | 2011-05-31 | 2012-04-04 | 镇江泰丰电工设备制造有限公司 | Monitoring system for power transformer |
| CN106526372A (en) * | 2016-10-27 | 2017-03-22 | 成都亚联科科技有限公司 | Automatic transformer function characteristic detection device |
| CN106989782A (en) * | 2017-06-08 | 2017-07-28 | 国网四川省电力公司广元供电公司 | A kind of working state monitoring system of transformer |
| CN110018365A (en) * | 2018-01-08 | 2019-07-16 | 广州东方电科自动化有限公司 | A kind of detection method and system of charging pile failure |
| CN110988542A (en) * | 2019-12-13 | 2020-04-10 | 国网吉林省电力有限公司电力科学研究院 | Data clustering analysis system and method for power equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20120531 |