CN202649842U - Intelligent heat dissipation system of dry-type transformer - Google Patents
Intelligent heat dissipation system of dry-type transformer Download PDFInfo
- Publication number
- CN202649842U CN202649842U CN 201220295789 CN201220295789U CN202649842U CN 202649842 U CN202649842 U CN 202649842U CN 201220295789 CN201220295789 CN 201220295789 CN 201220295789 U CN201220295789 U CN 201220295789U CN 202649842 U CN202649842 U CN 202649842U
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- CN
- China
- Prior art keywords
- dry
- type transformer
- heat dissipation
- intelligent heat
- circuit
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- Expired - Fee Related
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Abstract
The utility model discloses an intelligent heat dissipation system of a dry-type transformer. The intelligent heat dissipation system of the dry-type transformer includes a fan installed beside the dry-type transformer and a controller controlling the automatic operation of the fan. The controller is composed of an AT89C52 single-chip microprocessor and an outer periphery circuit. The outer periphery circuit includes a temperature transmitting circuit, an X5045 chip and a relay output circuit. The temperature transmitting circuit is composed of a temperature sensor, a bridge circuit and a dual-integral A/D converter. The temperature sensor includes three platinum resistors embedded in a three-phase coil of the dry-type transformer in advance. The relay output circuit is provided with four output points controlling the starting, stopping, high temperature alarm and super-high temperature trip of the fan respectively. The intelligent heat dissipation system of the dry-type transformer can protect the dry-type transformer effectively. Besides a function of reliable heat dissipation, the intelligent heat dissipation system of the dry-type transformer also has functions of high temperature alarm and super-high temperature trip. The intelligent heat dissipation system of the dry-type transformer works accurately, reliably, automatically and flexibly, and the operation of the intelligent heat dissipation system of the dry-type transformer is cannot be matched by the control of a traditional simulation instrument.
Description
Technical field
The utility model relates to transformer.
Background technology
The insulation and the load condition that depend on to a great extent winding in the safe operation of dry-type transformer and serviceable life, but when long-time overload work, dry-type transformer insulation winding can generate heat, and the one of the main reasons that the insulation winding damages is the tolerable temperature that the actual temperature of winding surpasses its insulation.Although; by " power equipment operating standard " regulation; the withstand voltage test of Denging is regularly carried out to transformer in the capital, but owing to not having the temperature of winding in its course of work is detected and efficiently radiates heat in real time, also just can not implement timely and effectively protection to operating transformer.
Therefore, be sought after a kind of cooling system protects dry-type transformer with imitating.
Summary of the invention
The purpose of this utility model is a kind of dry-type transformer intelligent heat dissipation of design system.
A kind of dry-type transformer intelligent heat dissipation system, it comprises and is installed in the automatically controller of running of the other blower fan of dry-type transformer and control blower fan; Controller is comprised of AT89C52 single-chip microcomputer and peripheral circuit, and peripheral circuit comprises temperature transmission circuit, X5045 chip and outputting circuit for relay; The temperature transmission circuit is comprised of temperature sensor, bridge diagram and double integration A/D converter; Temperature sensor is three platinum resistance that are embedded in the dry-type transformer three-phase coil; Outputting circuit for relay has four output points, control respectively blower fan startup, stop, the tripping operation of high temperature alarm and superhigh temperature.
Above-mentioned X5045 chip is a kind of programmable circuit that integrates watchdog circuit, voltage monitoring circuit and three kinds of functions of serial EEPROM storer.When system breaks down and when surpassing setup times, the house dog in the circuit will be reacted to CPU by the RESET signal.When supply voltage drops to allowed band when following, system also will reset, until supply voltage turns back to stationary value.EEPROM is the programmable read only memory of electric erasable, is used for data storage, and EEPROM and CPU store blower fan open temp, closing temperature, overtemperature alarm temperature and the superhigh temperature trip temperature of setting by serial communication in the eeprom memory.The voltage monitoring circuit of X5045 chip is to drop to predetermined minimum threshold voltage when following when supply voltage, and the Single Chip Microcomputer (SCM) system that resets guarantees that in the situation that power-fail or disconnection, single-chip microcomputer is normally worked.
In addition, in the control loop of blower fan, install a control knob additional, no matter what kind of duty controller is in, can with manually carry out blower fan open, stop control.
In addition, peripheral circuit comprises that also circulation shows the display of measuring temperature of three-phase winding.
In addition, peripheral circuit also comprises relay indicating light, and pilot lamp has 4 kinds of indications at least, indicate respectively blower fan startup, stop, the tripping operation of high temperature alarm and superhigh temperature.
In addition, peripheral circuit also comprises the keyboard input circuit, and except the temperature value of default, the user also can reset this value by keyboard as required.
This intelligent heat dissipation system can effectively protect dry-type transformer, except reliable heat radiation, also has high temperature alarm and superhigh temperature trip avoidance function, and work is that the control of traditional analog instrument can not be compared accurately, reliably, automatically flexibly.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Marginal data: 1-dry-type transformer, 2-blower fan, 3-temperature sensor, 4-bridge diagram, the 5-double integration A/D converter, 6-AT89C52 single-chip microcomputer, 7-pilot lamp, 8-display, the 9-control knob, 10-outputting circuit for relay, 11-keyboard input circuit, 12-X5045 chip.
Embodiment
As shown in Figure 1, a kind of dry-type transformer intelligent heat dissipation system, it comprises and is installed in the automatically controllers of running of the other blower fan 2 of dry-type transformer 1 and control blower fan 2; The structure of controller is shown in the empty frame of Fig. 1, and it is comprised of AT89C52 single-chip microcomputer 6 and peripheral circuit, and peripheral circuit comprises temperature transmission circuit, X5045 chip 12 and outputting circuit for relay 10; The temperature transmission circuit is comprised of temperature sensor 3, bridge diagram 4 and double integration A/D converter 5; Temperature sensor 3 is three platinum resistance that are embedded in the three-phase coil of dry-type transformer 1; Outputting circuit for relay 10 has four output points, four output points control respectively blower fan 2 startup, stop, high temperature alarm and superhigh temperature tripping operation.
Above-mentioned X5045 chip 12 is a kind of programmable circuits that integrate watchdog circuit, voltage monitoring circuit and three kinds of functions of serial EEPROM storer.Store blower fan open temp, closing temperature (default value of system is 80 ° of C), overtemperature alarm temperature (default value of system is 130 ° of C) and the superhigh temperature trip temperature (default value of system is 150 ° of C) of setting in the eeprom memory.
In addition, install a control knob 9 additional in the control loop of blower fan 2, what be used for Manual fan 2 opens, stops control.
In addition, peripheral circuit comprises that also circulation shows the display 8 of measuring temperature of three-phase winding.
In addition, peripheral circuit also comprises relay indicating light 7, and pilot lamp 7 has four kinds of indications at least, respectively indication
The startup of blower fan, stop, the tripping operation of high temperature alarm and superhigh temperature.
In addition, peripheral circuit also comprises keyboard input circuit 11, and except the temperature value of default, the user also can reset this value by keyboard as required.
Claims (5)
1. a dry-type transformer intelligent heat dissipation system is characterized in that, it comprises the controller that is installed in the other blower fan of dry-type transformer and the automatic running of control blower fan; Controller is comprised of AT89C52 single-chip microcomputer and peripheral circuit, and peripheral circuit comprises temperature transmission circuit, X5045 chip and outputting circuit for relay; The temperature transmission circuit is comprised of temperature sensor, bridge diagram and double integration A/D converter; Temperature sensor is three platinum resistance that are embedded in the dry-type transformer three-phase coil; Outputting circuit for relay has four output points, control respectively blower fan startup, stop, the tripping operation of high temperature alarm and superhigh temperature.
2. intelligent heat dissipation as claimed in claim 1 system is characterized in that, it also installs a control knob additional in the control loop of blower fan.
3. intelligent heat dissipation as claimed in claim 1 system is characterized in that, its peripheral circuit comprises that also circulation shows the display of measuring temperature of three-phase winding.
4. intelligent heat dissipation as claimed in claim 1 system is characterized in that, its peripheral circuit also comprises relay indicating light, and pilot lamp has four kinds of indications at least, indicate respectively blower fan startup, stop, high temperature alarm and superhigh temperature tripping operation.
5. intelligent heat dissipation as claimed in claim 1 system is characterized in that, its peripheral circuit also comprises the keyboard input circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220295789 CN202649842U (en) | 2012-06-21 | 2012-06-21 | Intelligent heat dissipation system of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220295789 CN202649842U (en) | 2012-06-21 | 2012-06-21 | Intelligent heat dissipation system of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202649842U true CN202649842U (en) | 2013-01-02 |
Family
ID=47418926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220295789 Expired - Fee Related CN202649842U (en) | 2012-06-21 | 2012-06-21 | Intelligent heat dissipation system of dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202649842U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942824A (en) * | 2017-12-20 | 2018-04-20 | 合肥齐泰光电科技有限公司 | A kind of intelligent transformer control device |
-
2012
- 2012-06-21 CN CN 201220295789 patent/CN202649842U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942824A (en) * | 2017-12-20 | 2018-04-20 | 合肥齐泰光电科技有限公司 | A kind of intelligent transformer control device |
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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: 20130102 Termination date: 20130621 |