CN204389029U - A kind of contactless dry-type transformer iron core temperature measurement system - Google Patents
A kind of contactless dry-type transformer iron core temperature measurement system Download PDFInfo
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- CN204389029U CN204389029U CN201420495558.7U CN201420495558U CN204389029U CN 204389029 U CN204389029 U CN 204389029U CN 201420495558 U CN201420495558 U CN 201420495558U CN 204389029 U CN204389029 U CN 204389029U
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- temperature measurement
- transformer
- contact infrared
- iron core
- infrared temperature
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Abstract
The utility model relates to a kind of contactless dry-type transformer iron core temperature measurement system, comprise induction electricity getting device, Non-contact Infrared Temperature Measurement device, embedded control unit and dust blow device, described induction electricity getting device comprises current transformer, electric energy conditioning module, Voltage stabilizing module, and the electric current utilizing electromagnetic induction principle to produce is that described temperature measuring equipment and dust blow device are powered; Described Non-contact Infrared Temperature Measurement device comprises Non-contact Infrared Temperature Measurement probe, radio communication transmitter module; Described embedded control unit to electric energy conditioning module carry out control and can by Non-contact Infrared Temperature Measurement probe acquires to temperature information send to host computer to carry out transformer state judgement and Temperature displaying by radio communication transmitter module, also can control dust blow device; Described dust blow device comprises minisize axial-flow blower fan, scalable wireway, can purge the dust of transformer fe wicking surface.
Description
Technical field
The utility model relates to the contactless iron core temperature survey of dry-type transformer.
Background technology
The places such as dry-type transformer refers to that iron core and winding are not immersed in the transformer in insulating oil, is widely used in local lighting, skyscraper, airport, harbour CNC plant equipment.Because dry-type transformer is compared with oil-filled transformer, there is fire protecting performance good, non-maintaining, pollution-free, anti-short circuit capability is strong, and temperature capacity is strong, the series of advantages such as easy for installation, so along with socioeconomic development, the application of dry-type transformer is more and more extensive, especially in modern commercial center, residential quarter, skyscraper, underground, the place that public place etc. are high to fire protection requirement is suitable for using dry-type transformer.
Dry-type transformer is divided into natural air cool (AN) and force Air flow (AF) according to the type of cooling.During natural air cooling, transformer can run continuously for a long time under rated capacity.During forced air cooling, transformer output capacity can improve 50%.Be applicable to interrupted running overload, or emergent accident running overload.The safe operation of dry-type transformer and its serviceable life, depend on the reliability of the safety that Transformer Winding insulate to a great extent.Winding temperature exceedes insulation tolerable temperature makes insulation breakdown, it is the one of the main reasons causing transformer cisco unity malfunction, transformer core damages core insulation because the faults such as multipoint earthing also can cause iron core local overheating simultaneously, there will be iron core scaling loss and even arrive the situation damaging transformer time serious.Therefore be very important to the winding temperature of transformer and the monitoring of iron core running temperature and controlling alarm thereof.Mostly current large-scale dry-type transformer iron core temperature is to utilize pre-plugged temperature element to measure, and middle-size and small-size dry-type transformer is seldom monitored transformer core temperature, even if the also sheetlike temperature indicators that use carrying out monitoring are attached to transformer fe wicking surface supervision iron core temperature more.Although sheetlike temperature indicator can react the temperature of iron core to a certain extent, the subjective judgement of tour personnel be relied on, also be limited to the condition such as patrol time and lighting simultaneously, data statistics and real-time state monitoring can not be carried out to the change of iron core temperature.
Summary of the invention
For the thermometric problem of current dry-type transformer iron core, the utility model proposes a kind of contactless dry-type transformer iron core temperature measurement system, by installing self-induction power taking infrared temperature measurement system on dry-type transformer, iron core surface temperature being monitored.This temp measuring method and system have temperature measurement accuracy high, easy for installation, do not need additionally to provide power supply, easy for installation, the function that wireless temperature sends can be realized, be suitable for very much the iron core temperature monitoring of dry-type transformer.
The utility model realizes by the following technical solutions:
A kind of contactless dry-type transformer iron core temperature measurement system, comprises induction electricity getting device, Non-contact Infrared Temperature Measurement device, embedded control unit and dust blow device.Described induction electricity getting device comprises current transformer, electric energy conditioning module, Voltage stabilizing module, the electric current that current transformer utilizes electromagnetic induction principle to produce by after electric energy conditioning module and Voltage stabilizing module for described temperature measuring equipment and dust blow device provide stable operating voltage; Described Non-contact Infrared Temperature Measurement device comprises Non-contact Infrared Temperature Measurement probe, radio communication transmitter module; Described embedded control unit to electric energy conditioning module carry out control and can by Non-contact Infrared Temperature Measurement probe acquires to temperature information send to host computer to show and condition adjudgement by radio communication transmitter module, also can control dust blow device; Described dust blow device comprises minisize axial-flow blower fan, scalable wireway, can purge the dust of transformer fe wicking surface, also can realize the cooling effect to internal circuit simultaneously.
For making the purpose of this utility model, technical scheme clearly understands, below will be described in detail to the utility model by relevant drawings.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is installation site of the present utility model schematic diagram;
Wherein:
1: louvre 2: fixed orifice
3: insulation fixing plate 4: scalable wireway
5: contactless iron core temperature measuring equipment 6: low-voltage cable
7: low pressure extension line 8: low-voltage insulation terminal
9: High-Voltage Insulation terminal 10: high-voltage leading-out wire
11: upper yoke 12: transformer core
13: dry-type transformer body
Embodiment
Below in conjunction with Fig. 1, Fig. 2, Fig. 3, the utility model is described in detail.
Iron core temperature measurement system in the utility model, comprises induction electricity getting device, Non-contact Infrared Temperature Measurement device, embedded control unit and dust blow device.Described induction electricity getting device comprises current transformer, electric energy conditioning module, Voltage stabilizing module; Electric energy conditioning module can carry out rectification and filtering to the alternating voltage that current transformer exports, and Voltage stabilizing module adopts stabilivolt by voltage stabilization at 5V.Described Non-contact Infrared Temperature Measurement device comprises Non-contact Infrared Temperature Measurement probe, radio communication transmitter module; The temperature information that described embedded control unit adopts single-chip microcomputer can collect according to the temperature sensor being arranged on electric energy conditioning module surface controls electric energy conditioning module, and can by Non-contact Infrared Temperature Measurement probe acquires to temperature information send to host computer to carry out dry-type transformer condition adjudgement and iron core Temperature displaying by radio communication transmitter module, also can control dust blow device; Described dust blow device comprises minisize axial-flow blower fan, scalable wireway 4, scalable wireway 4 be made by ambroin there is scalability hollow tubular, the dust of air stream to transformer fe wicking surface that minisize axial-flow blower fan can be made to produce purges to increase the accuracy of thermometric, also can realize the cooling effect to internal circuit simultaneously.In order to economize energy, minisize axial-flow blower fan is not work always, but adopts timing working or devote oneself to work when the temperature of power conditioning module is too high.
Described temperature measurement system adopts High-Voltage Insulation silicon rubber casings and flame-resistant electrical circuit plate, and electrically insulating silicone rubber envelope outer diameter is provided with insulation fixing plate 3, can be fixed on low-voltage line interface bolt with bolt, move insulation fixing plate 3 to avoid electrically insulating silicone rubber shell.Insulation crust has louvre 1, minisize axial-flow blower fan work space-time gas sucks from louvre and flows out from scalable wireway 4, and such air can flow through circuit board and dispel the heat to it simultaneously.
Claims (2)
1. a contactless dry-type transformer iron core temperature measurement system, is characterized in that, comprises induction electricity getting device, Non-contact Infrared Temperature Measurement device, embedded control unit and dust blow device;
Described induction electricity getting device comprises current transformer, electric energy conditioning module, Voltage stabilizing module;
Described Non-contact Infrared Temperature Measurement device comprises Non-contact Infrared Temperature Measurement probe, radio communication transmitter module;
Described embedded control unit carry out controlling to electric energy conditioning module and can by Non-contact Infrared Temperature Measurement probe acquires to temperature information send to host computer to show by radio communication transmitter module and transformer state judges, also can control dust blow device;
Described dust blow device comprises minisize axial-flow blower fan, scalable wireway, can purge the dust of transformer fe wicking surface.
2. the contactless dry-type transformer iron core temperature measurement system of one according to claim 1, is characterized in that: described temperature measurement system adopts High-Voltage Insulation silicon rubber casings and flame-resistant electrical circuit plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495558.7U CN204389029U (en) | 2014-08-29 | 2014-08-29 | A kind of contactless dry-type transformer iron core temperature measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420495558.7U CN204389029U (en) | 2014-08-29 | 2014-08-29 | A kind of contactless dry-type transformer iron core temperature measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389029U true CN204389029U (en) | 2015-06-10 |
Family
ID=53361739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420495558.7U Expired - Fee Related CN204389029U (en) | 2014-08-29 | 2014-08-29 | A kind of contactless dry-type transformer iron core temperature measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204389029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926840A (en) * | 2019-11-19 | 2020-03-27 | 国网江苏省电力有限公司 | Method capable of checking fire extinguishing effectiveness of oil-immersed transformer fire extinguishing system |
| CN112595745A (en) * | 2020-12-02 | 2021-04-02 | 西南交通大学 | Heat dissipation characteristic evaluation method for dry-type vehicle-mounted traction transformer |
-
2014
- 2014-08-29 CN CN201420495558.7U patent/CN204389029U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926840A (en) * | 2019-11-19 | 2020-03-27 | 国网江苏省电力有限公司 | Method capable of checking fire extinguishing effectiveness of oil-immersed transformer fire extinguishing system |
| CN112595745A (en) * | 2020-12-02 | 2021-04-02 | 西南交通大学 | Heat dissipation characteristic evaluation method for dry-type vehicle-mounted traction transformer |
| CN112595745B (en) * | 2020-12-02 | 2021-09-24 | 西南交通大学 | Heat dissipation characteristic evaluation method for dry-type vehicle-mounted traction transformer |
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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: 20150610 Termination date: 20150829 |
|
| EXPY | Termination of patent right or utility model |