CN202870646U - Transformer oil temperature monitoring system based on GPRS - Google Patents
Transformer oil temperature monitoring system based on GPRS Download PDFInfo
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- CN202870646U CN202870646U CN 201220519658 CN201220519658U CN202870646U CN 202870646 U CN202870646 U CN 202870646U CN 201220519658 CN201220519658 CN 201220519658 CN 201220519658 U CN201220519658 U CN 201220519658U CN 202870646 U CN202870646 U CN 202870646U
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Abstract
The utility model discloses a transformer oil temperature monitoring system based on GPRS. The transformer oil temperature monitoring system based on the GPRS comprises a temperature sensor, a signal processing module, a microprocessor module, a driver module, a cooling mechanism, a protocol conversion module, a background monitoring terminal and a GPRS communication module. The microprocessor module carries out wireless communication with the protocol conversion module through the GPRS communication module. The protocol conversion module and the background monitoring terminal are connected. The transformer oil temperature monitoring system based on the GPRS carries out wireless communication with the background monitoring terminal through substituting the GPRS communication module for the original RS485 communication line, can reduce electromagnetic interference existing in space, ensures the temperature display consistency of the background monitoring terminal and a field liquid crystal display module, ensures that background monitoring terminal control personnel can accurately grasp the current oil temperature and reduce the temperature timely, can ensure the normal operation of a transformer and prolongs the service life, does not produce wiring troubles, is convenient to install, and has a good application prospect.
Description
Technical field
The utility model has related to a kind of temperature of oil in transformer supervisory system based on GPRS, belongs to the transformer technology field.
Background technology
In recent years, along with GPA, the quickening of informatization paces, in whole electric power system, the transformer vitals that is absolutely necessary, oil-immersed type transformer in the course of the work, when temperature raises, the volumetric expansion of built-in electrical insulation oil, digest the tension force of the expansion formation of insulating oil by the corrugated plate in the corrugated oil box for oil immersed transformer outside, in the industry standard oil temperature in the oil-immersed type transformer is had clear and definite requirement: the maximum safety temperature of upper strata oil is no more than 100 ℃ in the fuel tank, namely work as oil temperature above 100 ℃, must lower the temperature by the cooling body of opening transformer, the perhaps measure such as limited load work, reduce oil temperature, with the normal operation of guaranteeing transformer with increase the service life, existing oil thermometer for measuring oil temperature adopts mechanical pointer to show oil temperature, precision is not high, and carry out communication by RS485 connection and background monitoring terminal, because the space exists powerful electromagnetic interference (EMI) to exert an influence to the RS485 connection in the transformer, there is deviation in the temperature that the temperature that appears at the background monitoring terminal and on-the-spot oil thermometer are shown, affect background monitoring terminal control personnel's judgement, cause transformer normally not move, shorten its serviceable life.
The utility model content
The purpose of this utility model is to overcome the oil thermometer of measuring oil temperature in the prior art to show that the precision of oil temperature is not high, because there is powerful electromagnetic interference (EMI) in the space in the transformer, can exert an influence to the RS485 connection, there is deviation in the temperature that the temperature of background monitoring terminal and on-the-spot oil thermometer show, affect background monitoring terminal control personnel's judgement, can not in time lower the temperature, cause transformer normally not move, the problem that shortens its serviceable life.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of temperature of oil in transformer supervisory system based on GPRS, comprise temperature sensor, signal processing module, microprocessor module, driver module, cooling body, stipulations modular converter and background monitoring terminal, described temperature sensor is connected with microprocessor module by signal processing module, described microprocessor module is connected with cooling body by driver module, it is characterized in that: also comprise the GPRS communication module, also by the wireless telecommunications of carrying out of GPRS communication module and stipulations modular converter, described stipulations modular converter is connected with the background monitoring terminal described microprocessor module.
Aforesaid temperature of oil in transformer supervisory system based on GPRS is characterized in that: also comprise the high temperature fault alarm module and the LCD MODULE that are connected with described microprocessor module.
Aforesaid temperature of oil in transformer supervisory system based on GPRS is characterized in that: also comprise power module and watchdog module that operating voltage is provided for each module, described watchdog module is connected with described microprocessor module.
Aforesaid temperature of oil in transformer supervisory system based on GPRS is characterized in that: described power module comprises that interchange turns DC circuit.
The beneficial effects of the utility model are: the temperature of oil in transformer supervisory system based on GPRS of the present utility model, use the GPRS communication module to replace original RS485 connection and background monitoring terminal to carry out wireless telecommunications, can reduce the electromagnetic interference (EMI) that the space exists, guarantee that the background monitoring terminal is consistent with the temperature that on-the-spot LCD MODULE shows, background monitoring terminal control personnel can accurately grasp the oil temperature of current oil-immersed type transformer, in time cooling, can guarantee the normal operation of transformer and increase the service life, and can not produce the worry of wiring, easy for installation, have a good application prospect.
Description of drawings
Fig. 1 is the system chart of the temperature of oil in transformer supervisory system based on GPRS of the present utility model.
Embodiment
Below in conjunction with Figure of description, the utility model is further described.
Shown in Fig. 1, a kind of temperature of oil in transformer supervisory system based on GPRS, comprise temperature sensor, signal processing module, microprocessor module, driver module, cooling body, stipulations modular converter and background monitoring terminal, temperature sensor is connected with microprocessor module by signal processing module, here adopt the good pt100 platinum resistance of temperature-resistance characteristic as temperature sensor, also comprise the high temperature fault alarm module and the LCD MODULE that are connected with microprocessor module, the temperature value that shows through microprocessor module that can the displays temperature sensor collects of LCD MODULE wherein, show more directly perceived than traditional pointer oil thermometer, convenient, and precision is high, high temperature fault alarm module is for prescribing a time limit on the maximum safety temperature that reaches upper strata oil in the fuel tank when temperature, and cooling body is work not, carry out cooling, can send chimes of doom, reminding user, supervisory system breaks down, need to adopt the measures such as limited load work, oil to oil-immersed type transformer is lowered the temperature, and microprocessor module is connected with cooling body by driver module.
Described microprocessor module is the wireless telecommunications of carrying out by GPRS communication module and stipulations modular converter also, described stipulations modular converter is connected with the background monitoring terminal, microprocessor module can show current oil temperature signal wireless transmission to the background monitoring terminal, when excess Temperature, the background monitoring terminal can send cooling signal to microprocessor module, microprocessor module control driver module is opened cooling body, and the oil of oil-immersed type transformer is lowered the temperature.
Temperature of oil in transformer supervisory system based on GPRS also comprises power module and the watchdog module that operating voltage is provided to module, watchdog module is connected with microprocessor module, can guarantee the normal operation based on the temperature of oil in transformer supervisory system of GPRS, overcome external interference, in the situation such as electrostatic interference, the oil temperature supervisory system is restarted to be resetted, the reliability of raising system, power module comprises that interchange turns DC circuit, not only can give microprocessor module, the modules such as watchdog module and signal condition module are carried out direct current supply, and the alternating voltage of work can also be provided to cooling body.
More than show and described ultimate principle of the present utility model, principal character and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is by appending claims and equivalent circle thereof.
Claims (4)
1. based on the temperature of oil in transformer supervisory system of GPRS, comprise temperature sensor, signal processing module, microprocessor module, driver module, cooling body, stipulations modular converter and background monitoring terminal, described temperature sensor is connected with microprocessor module by signal processing module, described microprocessor module is connected with cooling body by driver module, it is characterized in that: also comprise the GPRS communication module, also by the wireless telecommunications of carrying out of GPRS communication module and stipulations modular converter, described stipulations modular converter is connected with the background monitoring terminal described microprocessor module.
2. the temperature of oil in transformer supervisory system based on GPRS according to claim 1 is characterized in that: also comprise the high temperature fault alarm module and the LCD MODULE that are connected with described microprocessor module.
3. the temperature of oil in transformer supervisory system based on GPRS according to claim 1, it is characterized in that: also comprise power module and watchdog module that operating voltage is provided for each module, described watchdog module is connected with described microprocessor module.
4. the temperature of oil in transformer supervisory system based on GPRS according to claim 3 is characterized in that: described power module comprises exchanging and turns DC circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519658 CN202870646U (en) | 2012-10-11 | 2012-10-11 | Transformer oil temperature monitoring system based on GPRS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220519658 CN202870646U (en) | 2012-10-11 | 2012-10-11 | Transformer oil temperature monitoring system based on GPRS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202870646U true CN202870646U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220519658 Expired - Fee Related CN202870646U (en) | 2012-10-11 | 2012-10-11 | Transformer oil temperature monitoring system based on GPRS |
Country Status (1)
| Country | Link |
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| CN (1) | CN202870646U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999059A (en) * | 2012-10-11 | 2013-03-27 | 苏州爱知电机有限公司 | GPRS-based (general packet radio service) transformer oil temperature monitoring system |
| CN106876114A (en) * | 2017-04-18 | 2017-06-20 | 江西明正变电设备有限公司 | A kind of dry-type transformer |
| CN107357210A (en) * | 2017-07-29 | 2017-11-17 | 合肥赛度电子科技有限公司 | A kind of outer oil-filled transformer synthesis managing and control system of power grid user |
-
2012
- 2012-10-11 CN CN 201220519658 patent/CN202870646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102999059A (en) * | 2012-10-11 | 2013-03-27 | 苏州爱知电机有限公司 | GPRS-based (general packet radio service) transformer oil temperature monitoring system |
| CN106876114A (en) * | 2017-04-18 | 2017-06-20 | 江西明正变电设备有限公司 | A kind of dry-type transformer |
| CN107357210A (en) * | 2017-07-29 | 2017-11-17 | 合肥赛度电子科技有限公司 | A kind of outer oil-filled transformer synthesis managing and control system of power grid user |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20151011 |
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| EXPY | Termination of patent right or utility model |