CN104236728A - Oil temperature monitoring device and oil temperature monitoring system for power transformers - Google Patents
Oil temperature monitoring device and oil temperature monitoring system for power transformers Download PDFInfo
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- CN104236728A CN104236728A CN201410517181.5A CN201410517181A CN104236728A CN 104236728 A CN104236728 A CN 104236728A CN 201410517181 A CN201410517181 A CN 201410517181A CN 104236728 A CN104236728 A CN 104236728A
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Abstract
The invention discloses an oil temperature monitoring device and an oil temperature monitoring system for power transformers, and relates to the technical field of temperature measuring devices. The oil temperature monitoring device comprises a plurality of temperature sensors, a signal conversion module, a microprocessor module and a wireless data transmission module. The temperature sensors can be respectively positioned at the tops and the bottoms of oil tanks of the transformers for acquiring the temperatures of oil at the inner tops of the oil tanks of the transformers and the temperatures of oil at the bottoms of the oil tanks of the transformers and can be positioned on the outer sides of the oil tanks of the transformers for acquiring environmental temperatures. The oil temperature monitoring device and the oil temperature monitoring system have the advantages that the oil temperature monitoring device is provided with the multiple oil temperature sensors for acquiring the temperatures of the oil of the transformers, and accordingly safety accidents due to the fact that oil temperatures cannot be monitored by an existing oil temperature monitoring device with a single temperature sensor during failure can be solved; the oil temperature monitoring device is further provided with the environmental temperature sensors for acquiring the environmental temperatures, so that influence of the environmental temperatures on the temperatures of the oil of the transformers can be eliminated, the oil temperature control accuracy of transformer control systems can be improved, false alarm can be prevented, and the reliability of the oil temperature monitoring system can be improved.
Description
Technical field
The present invention relates to the measurement mechanism technical field of temperature, particularly relate to a kind of oil temperature of power transformer monitoring device and system thereof.
Background technology
In power transformer runs, be basis and the key safeguarding power transformer safe operation to the measurement of oil temperature.The daily need of management of power use department carries out Real-Time Monitoring to the oil temperature of power transformer, to prevent transformer operating overload or other faults from causing oil temperature sharply to rise, causes transformer to burn, the catastrophic failure of line outage.Often there is the damage of exception or unknown cause for the temperature sensor of measuring transformer oil surface temperature in transformer in operation; the process of each replacing defect elimination all needs transformer out of service; cause external power failure; have impact on normal industrial and agricultural production and resident living power utility, how reducing the power transformer stoppage in transit defect elimination caused because of abnormality of temperature sensors is the subject matter existed in prior art.Application number be 201110300401.5 patent document discloses a kind of multi-resistor remote temperature measuring device for transformer, can effectively prevent the temperature caused because of sensor failure cannot acquisition problems.But the impact of outdoor environment on oil temperature all do not considered by the oil temperature monitoring device occurred in prior art, cause transformer control system to control mistake, false alarm occurs.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of oil temperature of power transformer monitoring device and system thereof, described monitoring device gathers temperature of oil in transformer by arranging multiple oil temperature sensor, prevent because arranging a temperature sensor, what cause during inefficacy cannot monitor oil temperature, cause security incident, and environment temperature sensor collection environment temperature is set, discharge environment temperature to the impact of temperature of oil in transformer, improve the accuracy that transformer control system controls oil temperature, prevent false alarm, improve the reliability of institute's oil temperature monitoring system.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of oil temperature of power transformer monitoring device, comprise temperature sensor, signal conversion module, microprocessor module, wireless data transfer module, described temperature sensor is electrically connected by the input end of described signal conversion module with described microprocessor module electricity, described wireless data transfer module and described microprocessor are bi-directionally connected, it is characterized in that: described temperature sensor is provided with several, lay respectively at the top in described oil tank of transformer, the outside of bottom and oil tank of transformer, the temperature sensor of top and bottom is for the oil temperature of the oil temperature and bottom that gather oil tank of transformer inner top, temperature sensor outside oil tank of transformer is for gathering environment temperature.
Further technical scheme is: described wireless data transfer module uses GPS module.
The invention also discloses a kind of oil temperature of power transformer monitoring system, it is characterized in that: described system comprises oil temperature monitoring device described in several, mobile terminal and PC terminal, it is mutual that described oil temperature monitoring device carries out wireless data respectively by wireless network and described mobile terminal and PC terminal.
The beneficial effect adopting technique scheme to produce is: described monitoring device gathers temperature of oil in transformer by arranging multiple oil temperature sensor, prevent because arranging a temperature sensor, what cause during inefficacy cannot monitor oil temperature, cause security incident, and environment temperature sensor collection environment temperature is set, discharge environment temperature to the impact of temperature of oil in transformer, improve the accuracy that transformer control system controls oil temperature, prevent false alarm, improve the reliability of institute's oil temperature monitoring system.In addition described system not only PC terminal, also comprises various mobile terminal, can Real Time Observation temperature of oil in transformer, easy to use.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the theory diagram of monitoring device of the present invention;
Fig. 2 is the theory diagram of monitoring system 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.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar popularization when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
As shown in Figure 1, the invention discloses a kind of oil temperature of power transformer monitoring device, comprise temperature sensor, signal conversion module, microprocessor module, wireless data transfer module, described temperature sensor is electrically connected by the input end of described signal conversion module with described microprocessor module electricity, described wireless data transfer module and described microprocessor are bi-directionally connected, described wireless data transfer module uses GPS module, and above content is same as the prior art, and therefore not to repeat here.Inventive point of the present invention is: described temperature sensor is provided with several, lay respectively at the outside of the top in described oil tank of transformer, bottom and oil tank of transformer, the temperature sensor of top and bottom is for the oil temperature of the oil temperature and bottom that gather oil tank of transformer inner top, and the temperature sensor outside oil tank of transformer is for gathering environment temperature.
The invention also discloses a kind of oil temperature of power transformer monitoring system, described system comprises several foregoing oil temperature monitoring device, mobile terminal and PC terminals, it is mutual that described oil temperature monitoring device carries out wireless data respectively by wireless network and described mobile terminal and PC terminal, described system is calculated and monitoring actual oil temperature by mobile terminal or PC terminal under the prerequisite considering environmental factor, when oil temperature exceedes alarming value, send warning.
Described monitoring device gathers temperature of oil in transformer by arranging multiple oil temperature sensor, prevent because arranging a temperature sensor, what cause during inefficacy cannot monitor oil temperature, cause security incident, and environment temperature sensor collection environment temperature is set, discharge environment temperature to the impact of temperature of oil in transformer, improve the accuracy that transformer control system controls oil temperature, prevent false alarm, improve the reliability of institute's oil temperature monitoring system.
Described monitoring device gathers temperature of oil in transformer by arranging multiple oil temperature sensor, prevent because arranging a temperature sensor, what cause during inefficacy cannot monitor oil temperature, cause security incident, and environment temperature sensor collection environment temperature (by demarcating the relative coefficient relation drawing environment temperature and oil temperature) is set, discharge environment temperature to the impact of temperature of oil in transformer, improve the accuracy that transformer control system controls oil temperature, prevent false alarm, improve the reliability of institute's oil temperature monitoring system.In addition described system not only comprises PC terminal, also comprises various mobile terminal, can Real Time Observation temperature of oil in transformer, easy to use.
Claims (3)
1. an oil temperature of power transformer monitoring device, comprise temperature sensor, signal conversion module, microprocessor module, wireless data transfer module, described temperature sensor is electrically connected by the input end of described signal conversion module with described microprocessor module electricity, described wireless data transfer module and described microprocessor are bi-directionally connected, it is characterized in that: described temperature sensor is provided with several, lay respectively at the top in described oil tank of transformer, the outside of bottom and oil tank of transformer, the temperature sensor of top and bottom is for the oil temperature of the oil temperature and bottom that gather oil tank of transformer inner top, temperature sensor outside oil tank of transformer is for gathering environment temperature.
2. oil temperature of power transformer monitoring system according to claim 1, is characterized in that: described wireless data transfer module uses GPS module.
3. an oil temperature of power transformer monitoring system, it is characterized in that: described system comprises several oil temperature monitoring device, mobile terminal and PC terminals as claimed in claim 1, it is mutual that described oil temperature monitoring device carries out wireless data respectively by wireless network and described mobile terminal and PC terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410517181.5A CN104236728A (en) | 2014-09-30 | 2014-09-30 | Oil temperature monitoring device and oil temperature monitoring system for power transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410517181.5A CN104236728A (en) | 2014-09-30 | 2014-09-30 | Oil temperature monitoring device and oil temperature monitoring system for power transformers |
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| CN104236728A true CN104236728A (en) | 2014-12-24 |
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| CN201410517181.5A Pending CN104236728A (en) | 2014-09-30 | 2014-09-30 | Oil temperature monitoring device and oil temperature monitoring system for power transformers |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536489A (en) * | 2014-12-31 | 2015-04-22 | 常熟市九洲电器设备有限公司 | Transformer oil temperature monitoring system |
| CN104776931A (en) * | 2015-04-20 | 2015-07-15 | 国家电网公司 | Distribution transformer temperature rise test device based on thermistors |
| CN106404191A (en) * | 2016-08-29 | 2017-02-15 | 河南许继智能科技股份有限公司 | Multipath temperature detection protection method for oil-immersed transformer |
| CN107860487A (en) * | 2017-11-23 | 2018-03-30 | 上海置信电气股份有限公司 | The oil level and oil temperature integration monitoring method and device of distribution transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104536489A (en) * | 2014-12-31 | 2015-04-22 | 常熟市九洲电器设备有限公司 | Transformer oil temperature monitoring system |
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| CN106404191A (en) * | 2016-08-29 | 2017-02-15 | 河南许继智能科技股份有限公司 | Multipath temperature detection protection method for oil-immersed transformer |
| CN107860487A (en) * | 2017-11-23 | 2018-03-30 | 上海置信电气股份有限公司 | The oil level and oil temperature integration monitoring method and device of distribution transformer |
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Application publication date: 20141224 |