CN103996492A - Pre-alarm transformer based on transformer oil monitoring - Google Patents
Pre-alarm transformer based on transformer oil monitoring Download PDFInfo
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- CN103996492A CN103996492A CN201410191375.0A CN201410191375A CN103996492A CN 103996492 A CN103996492 A CN 103996492A CN 201410191375 A CN201410191375 A CN 201410191375A CN 103996492 A CN103996492 A CN 103996492A
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- fuel tank
- transformer oil
- alarm
- sensitive grid
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Abstract
The invention discloses a pre-alarm transformer based on transformer oil monitoring. The pre-alarm transformer based on transformer oil monitoring comprises an oil tank (1), an oil conservator (2) and a transformer oil monitoring device (5), wherein the transformer oil monitoring device comprises a first sensitive grid (501), a second sensitive grid (502), an analog-to-digital converter (503), a microprocessor (504), a display device (505), a power supply (506) and an alarm device (507), the first sensitive grid (501) is arranged on the inner side wall of the oil tank, and the second sensitive grid (502) is arranged on the inner side wall of the oil conservator; the first sensitive grid (501) and the second sensitive grid (502) are both connected with the analog-to-digital converter (503), the analog-to-digital converter (503), the microprocessor (504) and the display device (505) are connected in sequence, and the alarm device (507) is connected with the microprocessor (504). According to the pre-alarm transformer based on transformer oil monitoring, the oil quality is detected through the sensitive grids, monitoring is accurate, the efficiency is high, automatic monitoring is achieved, and the operation condition of the transformer can be reflected in real time so that an alarm can be given.
Description
Technical field
The present invention relates to field transformer, relate in particular to a kind of pre-alarm transformer based on transformer oil monitoring.
Background technology
Transformer oil plays insulation, cooling effect in transformer use procedure, and under normal duty and normal cooling condition, transformer upper strata oil temperature exceeds 10 ℃ more at ordinary times, and when transformer load is constant, oil temperature constantly rises, and should think that transformer temperature is abnormal, simultaneously, transformer oil has fresh oil and moves two kinds of oil, fresh oil is glassy yellow, operation oil is transparent micro-yellow, allow transformer occur when abnormal, carbon granules in transformer oil, moisture and sour potassium can increase, this is that transformer oil shining point reduces, dielectric strength reduces, oil declines, easily there is the breakdown accident of inner winding to transformer case, transformer is answered maintenance out of service, if can be by the monitoring of transformer oil and then the operation of monitoring transformer, and carry out pre-alarm, can avoid transformer to have an accident, improve the useful life of security performance and transformer.
In prior art, the monitoring of transformer oil is generally analyzed by manual sampling, has randomness, and sampling is subject to the impact of transformer geographical environment, and sampling is complicated, and efficiency is low.
Summary of the invention
The present invention has overcome the deficiencies in the prior art, and a kind of pre-alarm transformer based on transformer oil monitoring is provided, and can be realized monitoring transformer difference and be carried out pre-alarm by the monitoring to transformer oil.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Pre-alarm transformer based on transformer oil monitoring, comprise fuel tank, conservator and transformer oil monitoring device, in fuel tank, be provided with iron core winding, fuel tank and conservator communicate by oil pipe, in fuel tank and conservator, be provided with transformer oil, bushing and low-tension bushing all stretch out fuel tank end face, and transformer oil monitoring device comprises the first sensitive grid, the second sensitive grid, analog to digital converter, microprocessor, display unit, power supply and warning device.
The first sensitive grid is arranged on fuel tank madial wall, and the two poles of the earth supply lines of the first sensitive grid stretches out fuel tank, and connects power supply; The second sensitive grid is arranged on the madial wall of conservator, and the two poles of the earth supply lines of the second sensitive grid stretches out conservator, and connects power supply.
The first sensitive grid is all connected with analog to digital converter with the second sensitive grid, and analog to digital converter, microprocessor and display unit are linked in sequence successively, and warning device is connected with microprocessor.Power supply provides electric energy for all component in transformer oil monitoring device, and the input of power supply is provided with clip shape link, and the convenient output by clamping transformer is directly powered.Microprocessor is used for controlling output interface output and display unit shows, does not belong to the improvement content of this patent.
More preferably, transformer oil monitoring device also comprises output interface, and output interface is connected with microprocessor.Output interface comprises Ethernet interface, RS485 interface and USB interface.Can be by the detection data of the direct transmission transformer oil of output interface monitoring device.
Output interface is fixedly installed on the side of fuel tank, is provided with over cap on output interface.Output interface, under obsolete state, covers over cap, prevents that output interface from polluting.
Display unit is arranged on fuel tank sidewall outside by support, between display unit and fuel tank, is provided with thermal insulation board.The heat that prevents fuel tank is transferred to display unit, affects display unit and uses.
The sidewall outer surface of fuel tank is provided with fin.
In fuel tank and conservator, be provided with temperature sensor, temperature sensor is connected with microprocessor.By the temperature detection monitoring transformer operation conditions of transformer oil.
Conservator is outside equipped with fuel contents gauge, the fluid amount in monitoring conservator.
Compared with prior art, beneficial effect of the present invention has: the present invention is by oil in the first sensitive grid, the second sensitive grid monitoring fuel tank and conservator, when transformer oil qualitative change poor, after carbon granules in transformer oil, moisture and sour potassium increase, the resistance of the first sensitive grid, the second sensitive grid changes, and then affect the size of electric current, sending the data that monitor to analog to digital converter is converted to after digital signal, send to microprocessor, microprocessor is controlled display unit demonstration or warning device is reported to the police.By sensitive grid, monitor oil, accurately, efficiency is high, does not need to obtain by desk checking transformer oil the parameter of transformer oil, easy to use in monitoring, automatically monitors, and can reflect in real time the ruuning situation of transformer, and then pre-alarm.
Further, output interface comprises Ethernet interface, RS485 interface and USB interface.Can facilitate transfer of data by the detection data of the direct transmission transformer oil of output interface monitoring device, can realize the remote monitoring of transformer.
Further, output interface is fixedly installed on the side of fuel tank, is provided with over cap on output interface.Output interface, under obsolete state, covers over cap, prevents that output interface from polluting.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is transformer oil monitoring device schematic diagram;
Fig. 3 is the first sensitive grid installation site schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, pre-alarm transformer based on transformer oil monitoring, comprise fuel tank 1, conservator 2 and transformer oil monitoring device 5, in fuel tank 2, be provided with iron core winding, fuel tank 1 and conservator 2 communicate by oil pipe 3, in fuel tank 1 and conservator 2, be provided with transformer oil, bushing 401 and low-tension bushing 402 all stretch out fuel tank end face.
As shown in Figure 2, transformer oil monitoring device 5 comprises the first sensitive grid 501, the second sensitive grid 502, analog to digital converter 503, microprocessor 504, display unit 505, power supply 506 and warning device 507.
As shown in Figure 3, the first sensitive grid 501 is arranged on fuel tank madial wall, and the two poles of the earth supply lines of the first sensitive grid 501 stretches out fuel tank 1, and connects power supply 506; The second sensitive grid 502 is arranged on the madial wall of conservator 2, and the two poles of the earth supply lines of the second sensitive grid 502 stretches out conservator 2, and connects power supply 506.The mounting structure of the second sensitive grid is similar to the first sensitive grid, does not use diagram to describe.
The first sensitive grid 501 is all connected with analog to digital converter 503 with the second sensitive grid 502, and analog to digital converter 503, microprocessor 504 and display unit 505 are linked in sequence successively, and warning device 507 is connected with microprocessor 504.Power supply 506 provides electric energy for all component in transformer oil monitoring device, and the input of power supply is provided with clip shape link, and the convenient output by clamping transformer is directly powered.Microprocessor is used for controlling output interface output and display unit shows, does not belong to the improvement content of this patent.
More preferably, transformer oil monitoring device 5 also comprises output interface 508, and output interface 508 is connected with microprocessor 504.Output interface 508 comprises Ethernet interface, RS485 interface and USB interface.Can be by the detection data of the direct transmission transformer oil of output interface monitoring device.
Output interface 508 is fixedly installed on the side of fuel tank 1, is provided with over cap on output interface.Output interface, under obsolete state, covers over cap, prevents that output interface from polluting.
Display unit 505 is arranged on fuel tank 1 sidewall outside by support, between display unit 505 and fuel tank 1, is provided with thermal insulation board.The heat that prevents fuel tank is transferred to display unit, affects display unit and uses.
The sidewall outer surface of fuel tank is provided with fin.
In fuel tank 1 and conservator 2, be provided with temperature sensor, temperature sensor is connected with microprocessor.By the temperature detection monitoring transformer operation conditions of transformer oil.
Conservator 2 is outside equipped with fuel contents gauge 6, and fuel contents gauge utilizes the law of connected vessels of liquid, and fuel contents gauge dignity communicates with conservator, and the liquid level of fuel contents gauge is identical with liquid level in conservator, the fluid amount in monitoring conservator.
Below be only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the pre-alarm transformer of monitoring based on transformer oil, comprise fuel tank (1) and conservator (2), described fuel tank is provided with iron core winding in (2), described fuel tank (1) and conservator (2) communicate by oil pipe (3), in described fuel tank (1) and conservator (2), be provided with transformer oil, bushing (401) and low-tension bushing (402) all stretch out fuel tank end face, it is characterized in that, also comprise transformer oil monitoring device (5), described transformer oil monitoring device (5) comprises the first sensitive grid (501), the second sensitive grid (502), analog to digital converter (503), microprocessor (504), display unit (505), power supply (506) and warning device (507),
Described the first sensitive grid (501) is arranged on fuel tank madial wall, and the two poles of the earth supply lines of described the first sensitive grid (501) stretches out fuel tank (1), and connects power supply (506); Described the second sensitive grid (502) is arranged on the madial wall of conservator (2), and the two poles of the earth supply lines of described the second sensitive grid (502) stretches out conservator (2), and connects power supply (506);
Described the first sensitive grid (501) is all connected with analog to digital converter (503) with the second sensitive grid (502), described analog to digital converter (503), microprocessor (504) and display unit (505) are linked in sequence successively, and described warning device (507) is connected with microprocessor (504).
2. the pre-alarm transformer based on transformer oil monitoring according to claim 1, is characterized in that: described transformer oil monitoring device (5) also comprises output interface (508), and described output interface (508) is connected with microprocessor (504).
3. the pre-alarm transformer based on transformer oil monitoring according to claim 2, is characterized in that: described output interface (508) comprises Ethernet interface, RS485 interface and USB interface.
4. the pre-alarm transformer based on transformer oil monitoring according to claim 2, is characterized in that: described output interface (508) is fixedly installed on the side of fuel tank (1), on described output interface, is provided with over cap.
5. the pre-alarm transformer based on transformer oil monitoring according to claim 1, is characterized in that: described display unit (505) is arranged on fuel tank (1) sidewall outside by support.
6. the pre-alarm transformer based on transformer oil monitoring according to claim 5, is characterized in that: between display unit (505) and fuel tank (1), be provided with thermal insulation board.
7. the pre-alarm transformer based on transformer oil monitoring according to claim 1, is characterized in that: the sidewall outer surface of described fuel tank (1) is provided with fin.
8. the pre-alarm transformer based on transformer oil monitoring according to claim 1, is characterized in that: in described fuel tank (1) and conservator (2), be provided with temperature sensor, described temperature sensor is connected with microprocessor (504).
9. the pre-alarm transformer based on transformer oil monitoring according to claim 1, is characterized in that: described conservator (2) is outside equipped with fuel contents gauge (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191375.0A CN103996492A (en) | 2014-05-08 | 2014-05-08 | Pre-alarm transformer based on transformer oil monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191375.0A CN103996492A (en) | 2014-05-08 | 2014-05-08 | Pre-alarm transformer based on transformer oil monitoring |
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| CN103996492A true CN103996492A (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410191375.0A Pending CN103996492A (en) | 2014-05-08 | 2014-05-08 | Pre-alarm transformer based on transformer oil monitoring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628212A (en) * | 2015-12-29 | 2016-06-01 | 江苏省电力公司电力科学研究院 | Simulation transformer overheating fault alarm system |
| CN106052808A (en) * | 2016-07-21 | 2016-10-26 | 国网山西省电力公司电力科学研究院 | Electromagnetic-control-type-vibration-sensor-based oil level fault diagnosis method for oil-immersed power transformer |
| CN106052794A (en) * | 2016-07-21 | 2016-10-26 | 国网山西省电力公司电力科学研究院 | Oil level fault diagnosis device for oil-immersed power transformer |
| WO2017096656A1 (en) * | 2015-12-07 | 2017-06-15 | 海卓赛思（苏州）传感技术有限公司 | Transmitter for online monitoring of moisture, hydrogen content, and temperature of transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029896A (en) * | 2009-09-28 | 2011-04-27 | 郝亮 | Oil tank capable of detecting oil quality |
| US20110156918A1 (en) * | 2009-12-30 | 2011-06-30 | Eduardo Pedrosa Santos | System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and the like |
| CN203850099U (en) * | 2014-05-08 | 2014-09-24 | 昆山佑翔电子科技有限公司 | Pre-alarm transformer based on transformer oil monitoring |
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2014
- 2014-05-08 CN CN201410191375.0A patent/CN103996492A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102029896A (en) * | 2009-09-28 | 2011-04-27 | 郝亮 | Oil tank capable of detecting oil quality |
| US20110156918A1 (en) * | 2009-12-30 | 2011-06-30 | Eduardo Pedrosa Santos | System for monitoring oil level and detecting leaks in power transformers, reactors, current and potential transformers, high voltage bushings and the like |
| CN203850099U (en) * | 2014-05-08 | 2014-09-24 | 昆山佑翔电子科技有限公司 | Pre-alarm transformer based on transformer oil monitoring |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017096656A1 (en) * | 2015-12-07 | 2017-06-15 | 海卓赛思（苏州）传感技术有限公司 | Transmitter for online monitoring of moisture, hydrogen content, and temperature of transformer |
| CN105628212A (en) * | 2015-12-29 | 2016-06-01 | 江苏省电力公司电力科学研究院 | Simulation transformer overheating fault alarm system |
| CN106052808A (en) * | 2016-07-21 | 2016-10-26 | 国网山西省电力公司电力科学研究院 | Electromagnetic-control-type-vibration-sensor-based oil level fault diagnosis method for oil-immersed power transformer |
| CN106052794A (en) * | 2016-07-21 | 2016-10-26 | 国网山西省电力公司电力科学研究院 | Oil level fault diagnosis device for oil-immersed power transformer |
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Application publication date: 20140820 |
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