CN203433394U - Temperature control system for exciting transformer of generator set - Google Patents
Temperature control system for exciting transformer of generator set Download PDFInfo
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- CN203433394U CN203433394U CN201320561575.1U CN201320561575U CN203433394U CN 203433394 U CN203433394 U CN 203433394U CN 201320561575 U CN201320561575 U CN 201320561575U CN 203433394 U CN203433394 U CN 203433394U
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- control system
- temperature control
- controller
- motor field
- temperature
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Abstract
The utility model relates to a temperature control system for an exciting transformer of a generator set. The temperature control system comprises a thermistor, a temperature collecting and processing device, a controller and a blower fan, wherein the thermistor is arranged on a winding of the exciting transformer and connected with the temperature collecting and processing device, the temperature collecting and processing device is connected with the input end of the controller, and the output end of the controller is connected with and controls a switch of the blower fan. The temperature control system of the utility model controls the switch of the blower fan according to temperature signals measured in real time, thereby effectively solving the problems in temperature control for the exciting transformer, ensuring operation of loads of the generating set, effectively preventing the blower fan from unnecessary start, and saving electric energy.
Description
Technical field
The utility model belongs to the technical field of monitoring temperature, and in particular, the utility model relates to a kind of DCgenerator motor field transformer temperature control system.
Background technology
Exciting transformer is a kind of device that three-phase AC excitation power supply is provided for generator excited system specially, excitation system is converted into generator amature direct supply by controllable silicon by three-phase supply, form generator excitation magnetic field, by excitation system, regulate SCR Trigger Angle, reach and regulate motor terminal voltage and idle object.Safety, the stable operation of exciting transformer for generator, is the prerequisite of genset safety, stable operation, is also genset stable electric generation, the condition precedent of generating at full capacity simultaneously, is the key of excitation system reliability service.
Yet, the problem of power plant's excess Temperature can limit generation load, especially at hydropower industry, in a lot of power stations of wet season (flood season), be all oepration at full load (overload operation), add in wet season environment temperature relatively high, this has brought certain difficulty to cooling of primary equipment, thus restriction in various degree the load of unit, and when temperature is high, may cause the improper of unit to stop.
Utility model content
In order to solve existing above-mentioned technical matters in prior art, the purpose of this utility model is to provide a kind of DCgenerator motor field transformer temperature control system.
In order to solve the problems of the technologies described above and realize above-mentioned purpose, the utility model has adopted following technical scheme:
A kind of DCgenerator motor field transformer temperature control system, comprise controller and blower fan, it is characterized in that: also comprise thermistor and temperature acquisition treating apparatus, described thermistor is arranged on the winding of DCgenerator motor field transformer, described thermistor connects temperature acquisition treating apparatus, described temperature acquisition treating apparatus connects the input end of controller, and the output terminal of described controller connects and control the switch of blower fan.
Wherein, described controller comprises presetting module and comparison module, in described presetting module, is preset with preset temperature value, and described comparison module is the temperature of thermosensitive resistance measurement and preset temperature value comparison, and by comparative result, controls the switch of blower fan.
Wherein, described thermistor is platinum thermal resistance sensor.
Wherein, described controller is PLC controller.
Wherein, described blower fan is axial flow blower.
Wherein, described axial flow blower is arranged on the top of exciting transformer.
Wherein, two sides up and down of described axial flow blower are provided with thin wire gauze.
Compared with prior art, the utlity model has following useful technique effect:
DCgenerator motor field transformer temperature control system of the present utility model, the switch of controlling blower fan by the temperature signal of real-time measurement, not only efficiently solves the temperature controlled problem of exciting transformer, has guaranteed the operation of unit load, also effectively reduce the unnecessary unlatching of blower fan, saved electric energy.In addition, by temperature control, process, the running temperature of exciting transformer is limited in certain temperature range, also effectively extended the serviceable life of exciting transformer.
Accompanying drawing explanation
DCgenerator motor field transformer temperature control system block diagram described in Fig. 1: embodiment 1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is described in detail.
Embodiment 1
As shown in Figure 1, DCgenerator motor field transformer temperature control system described in the present embodiment, comprise thermistor 10, temperature acquisition treating apparatus 20, controller 30 and axial flow blower 40, described thermistor 10 is arranged on the winding of DCgenerator motor field transformer, described thermistor 10 connects temperature acquisition treating apparatus 20, described temperature acquisition treating apparatus 20 connects the input end of controller 30, and the output terminal of described controller 30 connects the also switch of Control Shaft flow fan 40.Wherein, described controller comprises presetting module and comparison module, in described presetting module, is preset with preset temperature value, and described comparison module is by the temperature of thermosensitive resistance measurement and preset temperature value comparison, when the temperature of measuring equals or during a little higher than preset value, controller is controlled described axial flow blower and opened; For example, when the temperature of measuring is during lower than described preset value uniform temperature when (5-10 ℃), controller controls described axial flow blower and cuts out.As preferably, described axial flow blower is arranged on the top of exciting transformer, and two sides up and down of described axial flow blower are provided with thin wire gauze for filtering foreign material; And described thermistor is platinum thermal resistance sensor, described controller is PLC controller.
The above; it is only preferred embodiment of the present utility model; can not be interpreted as limiting scope of the present utility model with this, the embodiment of all distortion being equal to of making in the claimed scope of claims of the present utility model and change is all in the utility model scope required for protection.
Claims (7)
1. a DCgenerator motor field transformer temperature control system, comprise controller and blower fan, it is characterized in that: also comprise thermistor and temperature acquisition treating apparatus, described thermistor is arranged on the winding of DCgenerator motor field transformer, described thermistor connects temperature acquisition treating apparatus, described temperature acquisition treating apparatus connects the input end of controller, and the output terminal of described controller connects and control the switch of blower fan.
2. DCgenerator motor field transformer temperature control system according to claim 1, it is characterized in that described controller comprises presetting module and comparison module, in described presetting module, be preset with preset temperature value, described comparison module is the temperature of thermosensitive resistance measurement and preset temperature value comparison, and by comparative result, controls the switch of blower fan.
3. DCgenerator motor field transformer temperature control system according to claim 1, is characterized in that described thermistor is platinum thermal resistance sensor.
4. DCgenerator motor field transformer temperature control system according to claim 1, is characterized in that described controller is PLC controller.
5. DCgenerator motor field transformer temperature control system according to claim 1, is characterized in that described blower fan is axial flow blower.
6. DCgenerator motor field transformer temperature control system according to claim 5, is characterized in that described axial flow blower is arranged on the top of exciting transformer.
7. DCgenerator motor field transformer temperature control system according to claim 6, is characterized in that two sides up and down of described axial flow blower are provided with thin wire gauze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561575.1U CN203433394U (en) | 2013-09-10 | 2013-09-10 | Temperature control system for exciting transformer of generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561575.1U CN203433394U (en) | 2013-09-10 | 2013-09-10 | Temperature control system for exciting transformer of generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433394U true CN203433394U (en) | 2014-02-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320561575.1U Expired - Fee Related CN203433394U (en) | 2013-09-10 | 2013-09-10 | Temperature control system for exciting transformer of generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433394U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319070A (en) * | 2014-11-12 | 2015-01-28 | 国家电网公司 | Radiating system of main transformer |
| CN105241570A (en) * | 2015-11-03 | 2016-01-13 | 重庆通赛机电有限公司 | System for continuously monitoring temperature of exciting transformer |
| CN107941364A (en) * | 2017-12-15 | 2018-04-20 | 中国长江电力股份有限公司 | A kind of generator excitation equipment temperature measuring equipment and method based on the more temperature transducers of infrared, fluorescence optical fiber |
-
2013
- 2013-09-10 CN CN201320561575.1U patent/CN203433394U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319070A (en) * | 2014-11-12 | 2015-01-28 | 国家电网公司 | Radiating system of main transformer |
| CN105241570A (en) * | 2015-11-03 | 2016-01-13 | 重庆通赛机电有限公司 | System for continuously monitoring temperature of exciting transformer |
| CN107941364A (en) * | 2017-12-15 | 2018-04-20 | 中国长江电力股份有限公司 | A kind of generator excitation equipment temperature measuring equipment and method based on the more temperature transducers of infrared, fluorescence optical fiber |
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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: 20140212 Termination date: 20150910 |
|
| EXPY | Termination of patent right or utility model |