CN205375224U - Dry -type transformer intelligence temperature controller based on CAN bus - Google Patents
Dry -type transformer intelligence temperature controller based on CAN bus Download PDFInfo
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- CN205375224U CN205375224U CN201521114073.XU CN201521114073U CN205375224U CN 205375224 U CN205375224 U CN 205375224U CN 201521114073 U CN201521114073 U CN 201521114073U CN 205375224 U CN205375224 U CN 205375224U
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- dry
- temperature controller
- type transformer
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- controller based
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Abstract
The utility model discloses a dry -type transformer intelligence temperature controller based on CAN bus. The technical scheme that adopts includes and acquires winding temperature value through a pre -buried at least platinum resistance transducer in transformer three -phase winding, and the AD that directly sends into the singlechip after signal conditioning circuit handles changes the input, the singlechip carries out online data scanning to operating transformer, according to temperature rise automatic control show transformer winding the temperature value, stop through corresponding the opening of cooling fan of control signal control of output driver circuit output to according to current status output normal, report to the police and tripping operation signal to state indicating circuit, warning circuit, tripping operation output circuit, simultaneously, pass to host computer realization centralized monitoring on through CAN line driver, CAN bus with various data.
Description
Technical field
This utility model relates to a kind of dry-type transformer intelligent temperature controller.
Background technology
The operation safety of dry-type transformer and service life, it is heavily dependent on Transformer Winding insulation.Winding temperature exceedes insulation tolerable temperature makes insulation breakdown.It it is the one of the main reasons causing transformator cisco unity malfunction.To transformator except adopting natural air cooling, also adopt and force air to cool down, to reduce insulation temperature, improve transformator output capacity.Therefore, the running temperature of Transformer Winding is monitored, drives blower fan to realize forced air cooling and controlling alarm is particularly significant.
At present, transformer temperature controller is generally adopted RS485 interface communication mode.Along with novel dry transformer continue to bring out, the application of dry-type transformer also constantly extends, the Centralized Monitoring of dry-type transformer running status is had higher requirement: the dry-type transformer installed, have that distribution pattern is various, mutual spacing deviation is not relatively big, a problem such as unmanned and many set monitoring systems.If temperature control system still adopts single Rs485 wire communication mode.All it is difficult under many circumstances meet requirement.Along with the development of computer technology and network technology, the networking of communication, intellectuality, integrated and Standardization Development trend is day by day obvious.Towards different application, the communication structure of temperature control system should have multifarious, to use standard agreement communication modes as far as possible, is development trend from now on.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of dry-type transformer intelligent temperature controller based on CAN.
For solving the problems referred to above, the technical solution adopted in the utility model includes obtaining winding temperature value by least one the platinum sensor being embedded in Three-Phase Transformer winding, the A/D conversion inputs of single-chip microcomputer it is sent directly into after signal conditioning circuit processes, operating transformator is carried out online circling measurment by described single-chip microcomputer, the temperature value of display Transformer Winding is automatically controlled according to temperature rise, export corresponding control signal by output driving circuit and control the start and stop of cooling fan, and it is normal according to current state output, report to the police and trip signal to condition indication circuit, warning circuit, tripping operation output loop, simultaneously, by various data by CAN driver, CAN uploads to host computer and realizes Centralized Monitoring.
The described dry-type transformer intelligent temperature controller based on CAN, it is characterised in that: the temperature value of described Transformer Winding by being connected on single-chip microcomputer display driver circuit, light-emitting diode display shows.
The described dry-type transformer intelligent temperature controller based on CAN, it is characterised in that: described platinum sensor is 3.
The described dry-type transformer intelligent temperature controller based on CAN, it is characterised in that: described single-chip microcomputer is further connected with band EEPROM (Electrically Erasable Programmable Read Only Memo).
The described dry-type transformer intelligent temperature controller based on CAN, it is characterised in that: described single-chip microcomputer is further connected with keyboard.
This utility model has the advantages that: intelligent transformer temperature controller is to safeguard the vitals that dry-type transformer runs, and whether the height of dry-type transformer intelligent temperature controller functional reliability and operation facilitate will directly influence the running quality of dry-type transformer.CAN field bus technique use is controlled system in transformer temperature by this utility model, uses the communication modes of standard agreement to extend the communication structure of system.Described dry-type transformer intelligent temperature controller, adopt advanced field bus technique, be greatly improved the system adaptive capacity to new environment, improve compatibility, in very severe electromagnetic interference or hot environment long-term stable operation, can effectively prevent transformator temperature rise too high accidents caused.Realize the economical operation of transformator, and may advantageously facilitate the scientific management of transformer station.Improve the safety operation level of dry-type transformer further.
Accompanying drawing explanation
Below in conjunction with Figure of description, this utility model is described further.
Fig. 1 is the system architecture diagram of this utility model intelligence.
Detailed description of the invention
With reference to shown in Fig. 1, dry-type transformer intelligent temperature controller based on CAN of the present utility model, winding temperature value is obtained by 3 platinum sensors 1 being embedded in Three-Phase Transformer winding, the A/D conversion inputs of single-chip microcomputer 3 it is sent directly into after signal conditioning circuit 2 processes, operating transformator is carried out online circling measurment by described single-chip microcomputer 3, according to signal data and various control parameter set in advance, perform to calculate and process according to control law.Automatically control the temperature value of display Transformer Winding according to temperature rise, exported the start and stop of corresponding control signal control cooling fan 4 by output driving circuit 14; and normal according to current state output, report to the police and trip signal to condition indication circuit 5, warning circuit 6, trip output loop 7; when blower fan breaks down; such as stall or when not turning; temperature controller can and alarm; and cutting off fan power, other blower fan runs as usual, and blower fan provides protection comprehensively.Meanwhile, various data are uploaded to host computer realized Centralized Monitoring by CAN driver 8, CAN 9.Described single-chip microcomputer 3 specifically adopts P87C591 single-chip microcomputer.Single-chip microcomputer realizes multiple unit communication by CAN communication interface, it is possible to operate measurement and control of temperature unit by host computer, shows result, makes full use of real-time and the motility of CAN data communication.
Optimize such scheme further, the temperature value of described Transformer Winding by being connected on single-chip microcomputer 3 display driver circuit 10, light-emitting diode display 11 shows.Display driver circuit adopts MAX7219, and light-emitting diode display is made up of 5 charactrons, the phase sequence title that the 1st numeral method is concrete, rear 4 temperature values showing this phase sequence.Described single-chip microcomputer 3 is further connected with band EEPROM (Electrically Erasable Programmable Read Only Memo) 12, described single-chip microcomputer 3 is further connected with keyboard 13, facilitate upgrading and the maintenance of system.
Described in upper, not this utility model is done any pro forma restriction, although this utility model discloses as above with preferably case study on implementation, but it is not limited to this utility model, any those skilled in the art, without departing within the scope of technical solution of the present invention, when structure and the technology contents of available the disclosure above make a little equivalent case study on implementation changing or being modified to equivalent variations, but every content without departing from technical solution of the present invention, according to any simple modification that above case study on implementation is made by the technical spirit of the present invention, equivalent variations and modification, all still belong to technical solutions of the utility model scope.
Claims (5)
- null1. the dry-type transformer intelligent temperature controller based on CAN，It is characterized in that: obtain winding temperature value by least one the platinum sensor (1) being embedded in Three-Phase Transformer winding，The A/D conversion inputs of single-chip microcomputer (3) it is sent directly into after signal conditioning circuit (2) processes，Operating transformator is carried out online circling measurment by described single-chip microcomputer (3)，The temperature value of display Transformer Winding is automatically controlled according to temperature rise、Export corresponding control signal by output driving circuit (14) and control the start and stop of cooling fan (4)，And it is normal according to current state output、Report to the police and trip signal to condition indication circuit (5)、Warning circuit (6)、Tripping operation output loop (7)，Simultaneously，By various data by CAN driver (8)、CAN (9) uploads to host computer and realizes Centralized Monitoring.
- 2. the dry-type transformer intelligent temperature controller based on CAN according to claim 1, it is characterised in that: the temperature value of described Transformer Winding is by being connected on the upper display driver circuit (10) of single-chip microcomputer (3), light-emitting diode display (11) display.
- 3. the dry-type transformer intelligent temperature controller based on CAN according to claim 1, it is characterised in that: described platinum sensor (1) is 3.
- 4. the dry-type transformer intelligent temperature controller based on CAN according to claim 1, it is characterised in that: described single-chip microcomputer (3) is further connected with band EEPROM (Electrically Erasable Programmable Read Only Memo) (12).
- 5. the dry-type transformer intelligent temperature controller based on CAN according to claim 1, it is characterised in that: described single-chip microcomputer (3) is further connected with keyboard (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114073.XU CN205375224U (en) | 2015-12-29 | 2015-12-29 | Dry -type transformer intelligence temperature controller based on CAN bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521114073.XU CN205375224U (en) | 2015-12-29 | 2015-12-29 | Dry -type transformer intelligence temperature controller based on CAN bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205375224U true CN205375224U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521114073.XU Active CN205375224U (en) | 2015-12-29 | 2015-12-29 | Dry -type transformer intelligence temperature controller based on CAN bus |
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| CN (1) | CN205375224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363433A (en) * | 2018-01-18 | 2018-08-03 | 毛杰 | A kind of water conservancy generator temperature control system for water generating |
| CN109582061A (en) * | 2018-12-14 | 2019-04-05 | 中广核工程有限公司 | Nuclear power station temperature control device for dry transformer |
-
2015
- 2015-12-29 CN CN201521114073.XU patent/CN205375224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108363433A (en) * | 2018-01-18 | 2018-08-03 | 毛杰 | A kind of water conservancy generator temperature control system for water generating |
| CN109582061A (en) * | 2018-12-14 | 2019-04-05 | 中广核工程有限公司 | Nuclear power station temperature control device for dry transformer |
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