CN206223323U - A kind of temperature of oil in transformer monitoring device based on fiber grating principle - Google Patents
A kind of temperature of oil in transformer monitoring device based on fiber grating principle Download PDFInfo
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- CN206223323U CN206223323U CN201621251627.5U CN201621251627U CN206223323U CN 206223323 U CN206223323 U CN 206223323U CN 201621251627 U CN201621251627 U CN 201621251627U CN 206223323 U CN206223323 U CN 206223323U
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- control borad
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- power supply
- grating module
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- 239000000835 fiber Substances 0.000 title claims abstract description 12
- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- 239000000523 sample Substances 0.000 claims abstract description 18
- 241000233805 Phoenix Species 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Abstract
The utility model discloses a kind of temperature of oil in transformer monitoring device based on fiber grating principle, including cabinet, Switching Power Supply, installing plate, grating module, (FBG) demodulator, temp probe, installing plate outer lateral side is connected with cabinet inner side surface, Switching Power Supply one end is connected with plate surface is installed, grating module is provided with fixing hole, grating module is fixedly connected by fixing hole with installing plate, (FBG) demodulator includes that demodulator and master control borad are constituted, temp probe is provided with four altogether, there are 2 fiber-optic grating sensors in each temp probe, the opposite side of temp probe is connected with the 8 of grating module ST mouthfuls, 8 ST mouthfuls of grating module is located at bottom, the wiring of the power supply and serial ports of grating module is located at top, master control borad and Switching Power Supply are connected, master control borad is provided with display screen, display screen is corresponding with cabinet door window.This temperature of oil in transformer monitoring device does not receive electromagnetic interference influence, and high precision, reaction is fast, corrosion resistance is strong, the life-span is high.
Description
Technical field
The utility model is related to a kind of temperature of oil in transformer monitoring device based on fiber grating principle.
Background technology
Temperature of oil in transformer is one of important parameter of transformer work, if the oil temperature mistake during transformer works
Height, can not only influence the service life of transformer, and also transformer safety operation will be threatened.Therefore temperature of oil in transformer is carried out
On-line monitoring, in real time understand temperature of oil in transformer change, for ensureing that normal power supply seems very necessary.But due to transformation
Device complex structure, live electromagnetic interference is big so that the difficulty for carrying out temperature of oil in transformer on-line monitoring is increased.For a long time, tradition
Temperature of oil in transformer monitoring front end using mechanical RTD as sensor, RTD is measured by bridge method or constant flow method
Resistance value, then tabled look-up, corresponding temperature is calculated after Stepwise calibration.This method can to a certain extent react fuel-displaced
The change of temperature, but the high-intensity magnetic field interference by live transformer is easier, accuracy and sensitivity is poor；RTD is immersed in change simultaneously
In depressor oil, corrosion-vulnerable influence insulating properties, short life is higher to technique and the requirement installed.With modern times sensing skill
The development of art, fiber grating temperature monitoring technology obtains important breakthrough, is especially suitable for being used in the environment of transformer high-intensity magnetic field, from
The defect of traditional RTD is fundamentally solved, the monitoring of temperature of oil in transformer is highly suitable for, is the safe operation of transformer
There is provided reliable technical guarantee, it is ensured that the safe and stable operation of power system.
Utility model content
The purpose of this utility model is to provide a kind of temperature of oil in transformer monitoring device based on fiber grating principle, to solve
The problem proposed in certainly above-mentioned background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of transformation based on fiber grating principle
Device oil temperature monitoring device, including cabinet, Switching Power Supply, installing plate, grating module, (FBG) demodulator, temp probe, outside the installing plate
Side side is connected with cabinet inner side surface, and described Switching Power Supply one end is connected with plate surface is installed, and the grating module is provided with
Fixing hole, grating module is fixedly connected by fixing hole with installing plate, and the (FBG) demodulator includes that demodulator and master control borad are constituted, institute
State temp probe and be provided with four altogether, there is 2 fiber-optic grating sensors, the opposite side and grating of temp probe in each temp probe
8 ST mouthfuls of module is connected, and 8 ST mouthfuls of grating module is located at bottom, and the wiring of the power supply and serial ports of grating module is located at
Top, master control borad and Switching Power Supply are connected, and master control borad is provided with display screen, and display screen is corresponding with cabinet door window, master control borad bottom
There are 4 groups of 8p phoenix terminals, every group includes 6 way switch amounts and 2 groups of analog signalses, and master control borad left side there are 2 groups of 3p phoenix terminals, is
Power input and 485 outputs.
Preferably, the enclosure top is provided with awning, and cabinet side is provided with shutter, and cabinet door has been provided with cabinet junction
Sealing strip, for ventilation rainproof.
Compared with prior art, the beneficial effects of the utility model are：This temperature of oil in transformer based on fiber grating principle
Monitoring device facilitates field personnel's observed and recorded, and does not receive electromagnetic interference influence, high precision, reacts fast, corrosion resistance
By force, the life-span is high.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model schematic diagram.
Fig. 3 is the utility model (FBG) demodulator（5）Fundamental diagram.
Fig. 4 is the utility model master control borad（5-2）Fundamental diagram.
Fig. 5 is that the utility model operates execution flow chart.
In figure：1- cabinets, 2- Switching Power Supplies, 3- installing plates, 4- grating modules, 5- (FBG) demodulators, 5-1- demodulators, 5-2- master
Control plate, 6- temp probes, 7-STM32 arm processors, 8-DAC, 9- RS232,10-LCD, 11- grating sensor, 12-
RS485。
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-4, a kind of embodiment that the utility model is provided：A kind of transformer oil based on fiber grating principle
Warm monitoring device, including cabinet 1, Switching Power Supply 2, installing plate 3, grating module 4, (FBG) demodulator 5, temp probe 6, the installing plate
3 outer lateral sides are connected with the inner side surface of cabinet 1, and the one end of the Switching Power Supply 2 is connected with the surface of installing plate 3, the grating module 4
Be provided with fixing hole, grating module 4 is fixedly connected by fixing hole with installing plate 3, the (FBG) demodulator 5 include demodulator 5-1 and
Master control borad 5-2 is constituted, and the temp probe 6 is provided with four altogether, has 2 fiber-optic grating sensors 11 in each temp probe 6, temperature
The opposite side of degree probe 6 is connected with 8 ST mouthfuls of grating module 4, and 8 ST mouthfuls of grating module 4 is located at bottom, grating module
The wiring of 4 power supply and serial ports is located at top, and master control borad 5-2 and Switching Power Supply 2 are connected, and master control borad 5-2 is provided with display screen, shows
Display screen is corresponding with cabinet door window, and 4 groups of 8p phoenix terminals are arranged at master control borad 5-2 bottoms, and every group includes 6 way switch amounts and 2 groups of analog quantitys
There are 2 groups of 3p phoenix terminals in signal, master control borad 5-2 left sides, are power input and 485 outputs, and the top of cabinet 1 is provided with awning, cabinet 1
Side is provided with shutter, and cabinet door has been provided with sealing strip with the junction of cabinet 1, for ventilation rainproof.
Specifically used mode：In the utility model, by cabinet 1, Switching Power Supply 2, installing plate 3, grating module 4, demodulation
Instrument 5, temp probe 6, fiber-optic grating sensor 11 constitute the present apparatus, and (FBG) demodulator 5 is made up of demodulator 5-1 and master control borad 5-2,
It supports the fiber-optic grating sensor 11 on up to 8 tunnels, the signal of fiber-optic grating sensor 11 is converted into 8 road temperature informations and is passed through
The interfaces of RS232 9 are transmitted to master control borad 5-2 using Modbus agreements；Master control borad 5-2 one side provides power supply for demodulator 5-1,
Analog power and 5V digital powers including positive and negative 12V, the temperature information that another aspect master control borad 5-2 exports demodulator 5-1
Scene is shown in real time by LCD 10, and is remotely exported.Output has a various ways, including 4-20mA electric currents and 0-5V voltages mould
Analog quantity, and RS485 12 digital form, master control borad 5-2 is mainly made up of power supply and the two parts of STM32 arm processors 7,
Powered by outside 220V AC powers, the analog power and 5V digital powers for exporting positive and negative 12V by Switching Power Supply 2 are demodulator
5-1 and master control borad 5-2 power, and the control core of master control borad 5-2 is STM32 arm processors 7, and it passes through serial ports and receives demodulator
The temperature input of 5-1, the real-time displays temperature information at the scene of LCD 10 is controlled by SPI interface, facilitates field personnel to see
Examine record, while by the digital forms of RS485 12 after electrical isolation, and 4-20mA electric current or 0-5V voltage simulation
Temperature information digital remote is transferred to Control Room by mode, and operation overall flow is：Upper electricity carries out system peripheral initialization, wraps
LCD 10, RTC, UART etc. is included, the temperature information of demodulator 5-1 is received after the completion of system initialization by RS232 9, to temperature
Information is analyzed calculating, and alarm shows that temperature information is converted into corresponding digital quantity carries out the simulation outputs of DAC 8, and leads to
Cross the digital form remote transmissions of RS485 12.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each implementation method is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Specification an as entirety, the technical scheme in each embodiment can also be formed into those skilled in the art through appropriately combined
May be appreciated other embodiment.
Claims (2)
1. a kind of temperature of oil in transformer monitoring device based on fiber grating principle, including cabinet（1）, Switching Power Supply（2）, installing plate
（3）, grating module（4）, (FBG) demodulator（5）, temp probe（6）, it is characterised in that：The installing plate（3）Outer lateral side and cabinet
（1）Inner side surface is connected, the Switching Power Supply（2）One end and installing plate（3）Surface connects, the grating module（4）It is provided with
Fixing hole, grating module（4）By fixing hole and installing plate（3）It is fixedly connected, the (FBG) demodulator（5）Including demodulator（5-1）
And master control borad（5-2）Composition, the temp probe（6）Four are provided with altogether, each temp probe（6）Inside there are 2 fiber gratings to pass
Sensor（11）, temp probe（6）Opposite side and grating module（4）8 ST mouthfuls be connected, grating module（4）8 ST mouthfuls
Positioned at bottom, grating module（4）Power supply and serial ports wiring be located at top, master control borad（5-2）And Switching Power Supply（2）Connection,
Master control borad（5-2）Display screen is provided with, display screen is corresponding with cabinet door window, master control borad（5-2）4 groups of 8p phoenix terminals are arranged at bottom,
Every group includes 6 way switch amounts and 2 groups of analog signalses, master control borad（5-2）There are 2 groups of 3p phoenix terminals in left side, be power input and
485 outputs.
2. a kind of temperature of oil in transformer monitoring device based on fiber grating principle according to claim 1, it is characterised in that
The cabinet（1）Top is provided with awning, cabinet（1）Side is provided with shutter, cabinet door and cabinet（1）Junction is provided with sealing strip,
For ventilation rainproof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251627.5U CN206223323U (en) | 2016-11-22 | 2016-11-22 | A kind of temperature of oil in transformer monitoring device based on fiber grating principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251627.5U CN206223323U (en) | 2016-11-22 | 2016-11-22 | A kind of temperature of oil in transformer monitoring device based on fiber grating principle |
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| Publication Number | Publication Date |
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| CN206223323U true CN206223323U (en) | 2017-06-06 |
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| CN201621251627.5U Active CN206223323U (en) | 2016-11-22 | 2016-11-22 | A kind of temperature of oil in transformer monitoring device based on fiber grating principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500869A (en) * | 2016-11-22 | 2017-03-15 | 国家电网公司 | A kind of temperature of oil in transformer monitoring device based on fiber grating principle |
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2016
- 2016-11-22 CN CN201621251627.5U patent/CN206223323U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500869A (en) * | 2016-11-22 | 2017-03-15 | 国家电网公司 | A kind of temperature of oil in transformer monitoring device based on fiber grating principle |
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