CN201078796Y - Temperature controller of novel transformer - Google Patents
Temperature controller of novel transformer Download PDFInfo
- Publication number
- CN201078796Y CN201078796Y CNU2007200154363U CN200720015436U CN201078796Y CN 201078796 Y CN201078796 Y CN 201078796Y CN U2007200154363 U CNU2007200154363 U CN U2007200154363U CN 200720015436 U CN200720015436 U CN 200720015436U CN 201078796 Y CN201078796 Y CN 201078796Y
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- Prior art keywords
- transformer
- transducer
- controller
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a transformer temperature control device, which has main technical characteristics that: an upper layer oil temperature sensor of the transformer is connected with a converter, the converter is connected with a programmable controller, and an output circuit of the programmable controller is connected with an oil pump or a fan. The utility model has the advantages of: novel structure, simple technics, improving reliability greatly; due to the adoption of large scaled integration technology by PLC, the reliability is very high and is largely higher than the existing instruments; the device has a strong anti-jamming ability of prevent dampness in site and field of the transformer, thereby being a controller with remote communication operation and high reliability for controlling temperature of transformer.
Description
Technical field
The utility model relates to a kind of controller of transformer, particularly a kind of temperature controller that is applicable to jumbo transformer or dry-type transformer.
Background technology
At present, the used temperature controller of oil-filled high-power transformer mostly adopts transducer, comprise that thermal resistance detects the temperature that is filled with liquid in the transformer, after the resistance bridge circuit, operational amplifier, the 4-20mA change-over circuit, temperature setting circuit, the anti-circuit, display circuit of hitting in control point, compositions such as power circuit, it exists technical problem as follows:
1. test point is few, can not reflect the temperature rise situation of transformer exactly.
2. structure is too complicated, its less stable.
3. can not transmit at a distance, operate.
Summary of the invention
The purpose of this utility model is the problem that exists in the above-mentioned technology in order to overcome, but a kind of telecommunication is provided, a kind of high reliability of operation be used for the temperature controlled controller of transformer.
The purpose of this utility model is achieved in that and comprises transducer, transducer, Programmable Logic Controller, it is characterized in that, transformer upper strata oil temperature sensor (I, II, III) be connected with transducer, transducer is connected with Programmable Logic Controller, and the output circuit of Programmable Logic Controller links to each other with blower fan with oil pump.
Its operation principle is, by being installed in transformer upper strata oil temperature sensor the oily temperature on the upper strata of transformer is detected, by the 4-20mA change-over circuit, detection signal is converted to the input port of delivering to PLC behind the standard 4-20mA signal, method by the signal of input is averaged compares with rated value, if be higher than rated value, PLC compares the input value rated value, and then carrying out ratio, differential is after the integral operation, by output loop Y0-Y9, start blower fan or oil pump, force cooling transformer, thereby carry out the temperature controlled effect of transformer, display on the PLC can show the temperature in the transformer, signal can be passed to host computer.
The utility model beneficial effect compared with the prior art is:
1. structure is simplified greatly, has cancelled Displaying Meter and digital display circuit.
2. improved reliability greatly, because PLC adopts LSI technology, its reliability is high, so its reliability of this device is to be much higher than existing instrument, and this device has stronger anti-jamming capacity, and the effect wet to the on-the-spot and open-air moisture resistance of transformer has stronger ability.
This device by 232 or the RS485 serial ports can carry out communication with host computer, can realize Long-distance Control, also can unattended automation equipment.
Description of drawings
Fig. 1 is the structural representation of utility model
Fig. 2 is the PLC and the sensor signal of utility model. water pump. and the oil pump connection diagram
Embodiment:
Below in conjunction with accompanying drawing present embodiment is described further:
As shown in Figure 1, transformer upper strata oil temperature sensor 1 is connected with transducer 3, and transducer is connected with Programmable Logic Controller 5, and the output circuit of Programmable Logic Controller 5 links to each other with blower fan 4 or oil pump 4 with oil pump 2.(use blower fan sometimes, use oil pump sometimes)
The transducer that is installed in transformer top detects oily temperature, give change-over circuit with output signal, current signal by change-over circuit output 4-20mA, again current signal is input to the X12-X15 of PLC, PLC by computing after, by delivery outlet Y0-Y11 output switching value fan or oil pump A, thereby start blower fan or oil pump, cool off.
As shown in Figure 2, link to each other with transducing signal by PLC X12...X15 mouth, the delivery outlet Y0...Y11 of PLC links to each other with blower fan or oil pump A, can start blower fan after calculating, and oil pump is forced cooling.
The serial ports GND of PLC, TXD, RXD can link to each other with host computer by RS232 or RS485 serial ports, can give host computer with data passes.
Claims (1)
1. novel transformer temperature controller, comprise transducer, transducer, Programmable Logic Controller, it is characterized in that transformer upper strata oil temperature sensor is connected with transducer, transducer is connected with Programmable Logic Controller, and the output circuit of Programmable Logic Controller links to each other with oil pump or blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200154363U CN201078796Y (en) | 2007-10-22 | 2007-10-22 | Temperature controller of novel transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200154363U CN201078796Y (en) | 2007-10-22 | 2007-10-22 | Temperature controller of novel transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078796Y true CN201078796Y (en) | 2008-06-25 |
Family
ID=39570862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200154363U Expired - Fee Related CN201078796Y (en) | 2007-10-22 | 2007-10-22 | Temperature controller of novel transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078796Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830736A (en) * | 2011-06-13 | 2012-12-19 | 苏州能健电气有限公司 | Cooling system of PLC (Programmable Logic Controller) control cabinet |
| CN103677008A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Oil circulation air-cooling control system of transformer of submerged arc furnace |
| CN105527995A (en) * | 2014-09-29 | 2016-04-27 | 镇江石鼓文智能化系统开发有限公司 | Remote temperature control system and using method thereof |
| CN106598118A (en) * | 2016-11-30 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Dry type transformer temperature and humidity control system |
-
2007
- 2007-10-22 CN CNU2007200154363U patent/CN201078796Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830736A (en) * | 2011-06-13 | 2012-12-19 | 苏州能健电气有限公司 | Cooling system of PLC (Programmable Logic Controller) control cabinet |
| CN103677008A (en) * | 2013-12-03 | 2014-03-26 | 柳州市五环水暖器材经营部 | Oil circulation air-cooling control system of transformer of submerged arc furnace |
| CN105527995A (en) * | 2014-09-29 | 2016-04-27 | 镇江石鼓文智能化系统开发有限公司 | Remote temperature control system and using method thereof |
| CN106598118A (en) * | 2016-11-30 | 2017-04-26 | 国网山东省电力公司青州市供电公司 | Dry type transformer temperature and humidity control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |