CN207163599U - A kind of transformer oil simulation detection system - Google Patents
A kind of transformer oil simulation detection system Download PDFInfo
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- CN207163599U CN207163599U CN201720806905.7U CN201720806905U CN207163599U CN 207163599 U CN207163599 U CN 207163599U CN 201720806905 U CN201720806905 U CN 201720806905U CN 207163599 U CN207163599 U CN 207163599U
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- transformer oil
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- microcontroller
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Abstract
It the utility model is related to a kind of transformer oil simulation detection system, including fuel tank, it is interior to be provided with iron core, high-tension coil and low-voltage coil are wound with iron core, high-tension coil connects high-tension insulating bushing by high-voltage connection, low-voltage coil connects low-voltage insulation sleeve pipe by low-voltage lead, and transformer oil is marked with fuel tank；Also include temperature sensor, granule density fiber coupling probe and microcontroller with light source, temperature sensor and granule density fiber coupling probe electrically connect with microcontroller, temperature signal converting unit is provided with microcontroller, photoelectric conversion unit, current amplification unit and A/D converting units, temperature signal converting unit connects current amplification unit with photoelectric conversion unit, current amplification unit connects A/D converting units, microcontroller passes through wireless connection backstage master control computer, alarm unit is provided with the master control computer of backstage, timing unit and data storage element.
Description
Technical field
It the utility model is related to transformer oil testing equipment field, more particularly to a kind of transformer oil simulation detection system.
Background technology
The main function that transformer oil plays in the course of work of transformer has：(1) insulating effect：Transformer oil has
The dielectric strength more much higher than air.Insulating materials is immersed in oil, can not only improve dielectric strength, but also can be from moisture
Corrode.(2) thermolysis：The specific heat of transformer oil is big, is commonly used for cooling agent.Heat caused by transformer station high-voltage side bus makes close to iron
The oily expanded by heating of core and winding rises, and by the convection current up and down of oil, heat is shed by radiator, ensures that transformer is normally transported
OK.(3) extinguishing arc acts on：On the on-load voltage regulating switch of oil-break and transformer, contact can produce electric arc when switching.Due to becoming
Depressor oil good heat conductivity, and can divide under the high temperature action of electric arc and touch a large amount of gases, larger pressure is produced, so as to improve
The arc extinction performance of medium, makes electric arc extinguish quickly.
And transformer frequently encounters the situation of high temperature or high humidity in practical service environment, transformer oil in this case
It will generate heat, other materials can be decomposited in transformer oil, some materials can produce suitable harm to the insulation of transformer, sternly
Cause inside transformer short circuit again or even explode.Present monitoring mode is all independent heating transformer oil, is then monitored
Temperature therein and impurity component, simply influence of the calandria adstante febre to oil that this mode monitors, with real transformer
Oil produces at work to be had differences on the time and temperature of impurity.
It is entitled《Transformer oil temperature detecting system》Invention (201511006299.2) disclose a kind of temperature of oil in transformer
Detecting system, including fuel tank are spent, wrapped on cores has high-tension coil, low-voltage coil, high-tension coil top and the high pressure on fuel tank
Insulating sleeve is connected, and low-voltage coil and the low-voltage insulation sleeve pipe connection on fuel tank, fuel tank top is additionally provided with for regulating winding circle
Several shunting switch, transformer oil is marked with fuel tank；Multiple ceramic heating flakes are provided with fuel tank.The transformer oil so designed
System for detecting temperature can truly detect oil-immersed type transformer change oily in the operation of reality.But the technical scheme is only closed
The change of the oil temperature of transformer oil is in the course of the work noted, it is impossible to reflect transformer oil with its interior production of the rise of temperature
The situation of raw impurity.
Therefore for drawbacks described above present in currently available technology, it is necessary to be studied in fact, to provide a kind of transformer
Oily simulation detection system, solve defect present in prior art, the actual operating conditions of analogue transformer oil, detect it in work
As temperature raises the situation of generation impurity during work.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of transformer oil simulation detection system.Can
The actual operating conditions of analogue transformer oil, and its temperature and impurity in the course of the work is detected with the change of working time
Situation.
To achieve the above object, the technical solution of the utility model is：A kind of transformer oil simulation detection system, including oil
Case, it is interior to be provided with iron core, high-tension coil and low-voltage coil are wound with iron core, high-tension coil connects high-voltage isulation by high-voltage connection
Sleeve pipe, low-voltage coil connect low-voltage insulation sleeve pipe by low-voltage lead, transformer oil are marked with the fuel tank；Also include temperature to pass
Sensor, granule density fiber coupling probe and microcontroller with light source, temperature sensor and granule density fiber coupling are visited
Head is electrically connected with microcontroller, and temperature signal converting unit, photoelectric conversion unit, electric current are provided with the microcontroller and is put
Big unit and A/D converting units, the temperature signal converting unit connect current amplification unit, the electricity with photoelectric conversion unit
Big unit connection A/D converting units are banished, the microcontroller passes through wireless connection backstage master control computer, the backstage master control
Alarm unit, timing unit and data storage module are provided with computer.
Preferably, the temperature sensor is arranged on high-tension coil side.
Preferably, the temperature sensor is optical fiber Bragg grating sensor.
Preferably, granule density fiber coupling probe be double light path fibre-optical probe, including one collimates and compares optical fiber, one
Helical form optical fiber and for coupling light source inject Collimation Ratio compared with optical fiber and the optical lens of helical form optical fiber.
Preferably, the granule density fiber coupling probe is arranged on high-tension coil side.
Compared with the transformer oil simulation detection system that prior art uses, the beneficial effects of the utility model are as follows：
(1) temperature sensor and impurity sensor are combined, the actual operating conditions of analogue transformer, detect to become in real time
Temperature and caused impurity in the depressor course of work transmits a signal to the situation of change of the working time of transformer
Backstage carry out data processing, obtain Time-temperature, when m- impurity, the change curve of temperature-impurity, make staff for become
The service behaviour of depressor oil is very clear.
(2) fibre-optical probe is used, small volume, low cost is corrosion-resistant, no current input, and obtained data are more accurate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of transformer oil simulation detection system of the utility model.
Fig. 2 is Collimation Ratio of the present utility model compared with the part-structure schematic diagram at optical fiber.
Fig. 3 is a kind of operation principle block diagram of transformer oil simulation detection system of the utility model.
Description of reference numerals：1- iron cores；2- high-tension coils；3- low-voltage coils；4- low-voltage insulation sleeve pipes；5- high-pressure insulating rings
Pipe；6- Collimation Ratios are compared with optical fiber；7- helical form optical fiber；8- microcontrollers；801- temperature signal converting units；802- opto-electronic conversion lists
Member；803- current amplification units；804-A/D converting units；90- backstages master control computer；901- alarm units；902- timing lists
Member；903- data storage elements；10- temperature sensors；11- granule densities fiber coupling is popped one's head in.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
On the contrary, the utility model cover it is any be defined by the claims do in spirit and scope of the present utility model
Replacement, modification, equivalent method and scheme.Further, it is right below in order that the public has a better understanding to the utility model
It is detailed to describe some specific detail sections in detailed description of the present utility model.Do not have for a person skilled in the art
The description of these detail sections can also understand the utility model completely.
As Figure 1-3, it is respectively a kind of structural representation of transformer oil simulation detection system of the utility model, work
Make the structural representation of theory diagram and granule density fiber coupling probe.A kind of transformer oil simulation detection system, including
Fuel tank, it is interior to be provided with iron core 1, high-tension coil 2 and low-voltage coil 2 are wound with iron core 1, high-tension coil 2 is connected by high-voltage connection
High-tension insulating bushing 5, low-voltage coil 2 connect low-voltage insulation sleeve pipe 4 by low-voltage lead, transformer oil are marked with fuel tank；Also wrap
Include temperature sensor 10, granule density fiber coupling probe 11 and microcontroller 8, temperature sensor 10 and particle with light source
Concentration fiber coupling probe 11 is electrically connected with microcontroller 8, and temperature signal converting unit 801, light are provided with microcontroller 8
Electric converting unit 802, current amplification unit 803 and A/D converting units 804, temperature signal converting unit 801 and opto-electronic conversion
Unit 802 connects current amplification unit 803, and current amplification unit 803 connects A/D converting units 804, and microcontroller 8 passes through nothing
Line connects backstage master control computer 90, and alarm unit 901, timing unit 902 and data are provided with backstage master control computer 90
Storage element 903.By the transformer oil simulation detection system of arrangement above in the course of work of reality, pass through external power supply
It is powered to iron core 1, the course of work of the work simulation transformer of iron core 1, temperature detecting module detects transformer oil in the course of work
Temperature, and by analog signal transmission to microcontroller 8, temperature signal converting unit 801, which changes analog signal to data, to be believed
Number, and by being wirelessly transmitted to backstage master control computer 90；Meanwhile light source is injected in granule density fiber coupling probe 11, is obtained
Impurity concentration change information in transformer oil, the photoelectric conversion unit 802 being transferred in microcontroller 8 convert optical signals into
Change, transmitted to the total computer in backstage for electric signal and by Current amplifier and A/D.Backstage master control computer 90 receive through
By the temperature signal and impurity concentration signal for transmitting, changing and amplifying in microcontroller 8, and it is located at backstage master control computer simultaneously
Timing unit 902 in 90, which works, obtains time data, the storage element data storage in backstage master control computer 90, and root
The curve of m- impurity concentration, Time-temperature, temperature-impurity concentration, staff when being drawn according to time, temperature and impurity concentration
It is very clear for the service behaviour of transformer oil.In addition, alarm unit 901 is additionally provided with backstage master control computer 90, institute
State alarm unit 901 and impurity concentration threshold value and temperature threshold can be set, when the impurity concentration and temperature that feed back to backstage master control calculating
When degree exceedes threshold value set in advance, alarm unit 901 sends alarm to staff.
In concrete application embodiment, temperature sensor 10 is arranged on the side of high-tension coil 2.
In concrete application embodiment, temperature sensor 10 is optical fiber Bragg grating sensor.Anti-interference is stronger, accurate
True property is higher
In concrete application embodiment, granule density fiber coupling probe 11 be double light path fibre-optical probe, including one collimates
Compare optical fiber 7, a helical form optical fiber 7 and inject Collimation Ratio compared with optical fiber 7 and the optical lens of helical form optical fiber 7 for coupling light source.
It is that collimation compares optical fiber 7 in an optical fiber, length is again very short, and structure is identical, inputs the complete phase of light intensity using two optical fiber
Deng under conditions of, the output intensity of first optical fiber can be considered the input light intensity of Article 2 helical form optical fiber 7.Optical lens can carry
Coupling efficiency between high light source and optical fiber, reduce measurement error.
The operation principle of granule density fiber coupling probe 11 is as follows：Light source is coupled by optical lens, is imaged on Collimation Ratio
The light intensity exported compared with the light intensity and helical form optical fiber 7 on the end face of optical fiber 7 and helical form optical fiber 7, comparing optical fiber output passes through micro-
Photoelectric conversion unit 802 in controller 8 is converted into current signal, and is amplified by current amplification unit 803, then by A/D
Converting unit 804 is changed, and then by being wirelessly transmitted in backstage master control computer 90, backstage Master Control Unit respectively will relatively light
The ratio for the light intensity that the light intensity and helical form optical fiber 7 of fibre output export carries out data processing, so as to show that transformer oil impurity is dense
Spend parameter.
In concrete application embodiment, granule density fiber coupling probe 11 is arranged on the side of high-tension coil 2.Transformer oil
In caused impurity particle the higher place of electric-field intensity can be gathered in the presence of high voltage electric field, these region electric-field intensity
It is higher to trigger partial discharges fault often, when accident prevention keypoint part.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
All any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
Within the scope of shield.
Claims (5)
- A kind of 1. transformer oil simulation detection system, it is characterised in that it is interior to be provided with iron core including fuel tank, it is wound with height on iron core Line ball circle and low-voltage coil, high-tension coil connect high-tension insulating bushing by high-voltage connection, and low-voltage coil is connected by low-voltage lead Low-voltage insulation sleeve pipe is connect, transformer oil is marked with the fuel tank；Also include temperature sensor, the granule density optical fiber with light source Coupling probe and microcontroller, temperature sensor and granule density fiber coupling probe electrically connect with microcontroller, described micro- Temperature signal converting unit, photoelectric conversion unit, current amplification unit and A/D converting units, the temperature are provided with controller Degree signal conversion unit connects current amplification unit with photoelectric conversion unit, and the current amplification unit connects A/D converting units, The microcontroller is provided with alarm unit, meter by wireless connection backstage master control computer in the backstage master control computer Shi Danyuan and data storage element.
- 2. transformer oil simulation detection system as claimed in claim 1, it is characterised in that the temperature sensor is arranged on height Press on coil side.
- 3. transformer oil simulation detection system as claimed in claim 1, it is characterised in that the temperature sensor is optical fiber Bragg grating sensors.
- 4. transformer oil simulation detection system as claimed in claim 1, it is characterised in that the granule density fiber coupling is visited Head be double light path fibre-optical probe, including a collimation compare optical fiber, a helical form optical fiber and for coupling light source injection Collimation Ratio compared with The optical lens of optical fiber and helical form optical fiber.
- 5. transformer oil simulation detection system as claimed in claim 1, it is characterised in that the granule density fiber coupling is visited Head is arranged on high-tension coil side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720806905.7U CN207163599U (en) | 2017-07-05 | 2017-07-05 | A kind of transformer oil simulation detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720806905.7U CN207163599U (en) | 2017-07-05 | 2017-07-05 | A kind of transformer oil simulation detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207163599U true CN207163599U (en) | 2018-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720806905.7U Expired - Fee Related CN207163599U (en) | 2017-07-05 | 2017-07-05 | A kind of transformer oil simulation detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207163599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113997A (en) * | 2021-11-17 | 2022-03-01 | 国网安徽省电力有限公司电力科学研究院 | On-load tap-changer fault prediction method and device based on granularity analysis |
-
2017
- 2017-07-05 CN CN201720806905.7U patent/CN207163599U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113997A (en) * | 2021-11-17 | 2022-03-01 | 国网安徽省电力有限公司电力科学研究院 | On-load tap-changer fault prediction method and device based on granularity analysis |
| CN114113997B (en) * | 2021-11-17 | 2023-09-15 | 国网安徽省电力有限公司电力科学研究院 | On-load tap-changer fault prediction method and device based on granularity analysis |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20200705 |
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| CF01 | Termination of patent right due to non-payment of annual fee |