CN206147035U - Transformer winding deformation detection device - Google Patents
Transformer winding deformation detection device Download PDFInfo
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- CN206147035U CN206147035U CN201621197607.4U CN201621197607U CN206147035U CN 206147035 U CN206147035 U CN 206147035U CN 201621197607 U CN201621197607 U CN 201621197607U CN 206147035 U CN206147035 U CN 206147035U
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Abstract
The utility model relates to a transformer winding detects technical field, concretely relates to transformer winding deformation detection device, including temperature sensor, humidity transducer, singlechip, central processing unit, signal generating unit, the first signal acquisition unit, second signal acquisition unit, touch display screen, data storage module and power module, signal generating unit is including DDS signal generator, filter module and the power amplification module of electricity connection in proper order, signal conditioning module, direct current conversion module and AD conversion module that the first signal acquisition unit and second signal acquisition unit all connect including electricity in proper order. This device is through setting up central processing unit and singlechip, and both divide the work the difference, very big reduction the rate of utilization of central processing unit resource, can improve central processing unit signal processing's ability. Both ends simultaneous acquisition signal through being surveyed the winding contrasts to it is more accurate to make the testing result.
Description
Technical field
This utility model is related to Transformer Winding detection technique field, and in particular to a kind of deformation of transformer winding detection dress
Put.
Background technology
With today's society and the continuous progress of science and technology, the construction of electrical network gradually develops to intelligent direction, more and more
The equipment of use new science and technology be applied to electric field, the total of electrical network is occurred in that than larger change.Transformator exists
Status in whole power system is extremely important, and transformer safety is reliably run for the normal operation for guaranteeing whole electrical network is
It is very necessary.And for transformator, winding is the major part which goes wrong, therefore such case is directed to, is developed
Go out the higher detection means of accuracy for winding is carried out detection be it is very necessary, it to whole power grid security reliably
Operation is with very big meaning.But existing detection means, Detection accuracy are low, and the resistance disturbed to external world compares
The time spent in difference, detection, is long, and repeatability is not fine.
Utility model content
The purpose of this utility model is to provide a kind of deformation of transformer winding that detection is accurate, module integrated level is high detection
Device.
In order to achieve the above object, the technical solution adopted in the utility model is：Deformation of transformer winding detection means, bag
Include temperature sensor, humidity sensor, single-chip microcomputer, central processing unit, signal generating unit, the first signal gathering unit, second
Signal gathering unit, touch display screen, data memory module and power module, the temperature sensor and humidity sensor with
Single-chip microcomputer connects, and the single-chip microcomputer is connected with central processing unit, and the signal generating unit includes the DDS signals being sequentially connected electrically
Generator, filtration module and power amplifier module, the outfan of the central processing unit are connected with the input of DDS signal generator
Connect, the detection signal of power amplifier module output is input into from one end of tested winding, first signal gathering unit and
Secondary signal collecting unit includes Signal-regulated kinase, DC conversion modules and the AD conversion module being sequentially connected electrically, described
The input of the Signal-regulated kinase of the first signal gathering unit is connected with the outfan of power amplifier module, first signal
The outfan of the AD conversion module of collecting unit is connected with the input of central processing unit, the letter of the secondary signal collecting unit
The input of number conditioning module is connected with the other end of tested winding, the AD conversion module of the secondary signal collecting unit it is defeated
Go out end to be connected with the input of central processing unit, the touch display screen and data memory module are connected with central processing unit,
The power module provides power supply for device.
Deformation of transformer winding detection means as above, further illustrates as the single-chip microcomputer is adopted
The minimum system of MC9S08AC16 chips and its peripheral circuit composition.
Deformation of transformer winding detection means as above, further illustrates as the central processing unit is adopted
The minimum system of S3C6410 processors and its peripheral circuit composition.
Deformation of transformer winding detection means as above, further illustrates as the DDS signal generator is by DDS
Generation chip and its peripheral circuit composition.
Deformation of transformer winding detection means as above, further illustrates as the DC conversion modules are adopted
AD637 chips and its peripheral circuit composition.
Deformation of transformer winding detection means as above, further illustrates as the data memory module is adopted
Micro SD cards.
Deformation of transformer winding detection means as above, further illustrate for, the power module include power supply and
Voltage transformation module, the voltage transformation module is for supply voltage to be converted into the voltage of some different numerical value.
The beneficial effects of the utility model are：This device mode box-like by arranging central processing unit and singlechip group,
The signal detection of tested winding is responsible for by central processing unit, the collection of tested winding ambient parameters, pole are responsible for by single-chip microcomputer
The big utilization rate for reducing central processing unit resource, it is possible to increase the ability of central processing unit process signal, while simplifying
The design of central processing unit panel and welding difficulty.Contrasted by gathering signal at the two ends of tested winding simultaneously, so as to
Make testing result more accurate.Using modularized design, the integrated level of whole system is improve, while enhancing anti-external electromagnetic
The ability of interference.Temperature sensor is set and humidity sensor is capable of detecting when the temperature and humidity around tested winding, so as to
Impact of the temperature and humidity to tested winding self-deformation can be eliminated, makes testing result more accurate.
Description of the drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is DDS signal generator example structure schematic diagram.
Fig. 3 is power amplifier module example structure schematic diagram.
Fig. 4 is DC conversion modules example structure schematic diagram.
Fig. 5 is touch display screen example structure schematic diagram.
Fig. 6 is data memory module example structure schematic diagram.
Fig. 7 is voltage transformation module example structure schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model embodiment is further elaborated.
As shown in figure 1, a kind of deformation of transformer winding detection means that this utility model is provided, including temperature sensor,
Humidity sensor, single-chip microcomputer, central processing unit, signal generating unit, the first signal gathering unit, secondary signal collecting unit,
Touch display screen, data memory module and power module.
The temperature sensor and humidity sensor are connected with single-chip microcomputer, the temperature sensor be used for gather it is tested around
Temperature signal around group, the humidity sensor are used to gather the moisture signal around tested winding, as tested winding is produced
The impact of product itself, temperature and humidity all can produce certain impact to the deformation of tested winding, by arranging temperature sensor
And humidity sensor, the temperature and humidity around tested winding can be known, such that it is able to according to the temperature and humidity, eliminate quilt
The part deformation of winding is surveyed, makes the testing result of tested winding more accurate.The temperature sensor and humidity sensor are
Prior art, is not specifically described here.
The single-chip microcomputer is connected with central processing unit, and the single-chip microcomputer is used to gather ambient parameter, the central processing unit
For the signal detection of tested winding, in existing detection means, often only with a central processing unit completing to own
Work, control it is more complicated, can also cause too many peripheral circuit it is excessive occupancy central processing unit resource, affect central authorities
Treatment effect of the processor to detection signal.If additionally, central processing unit panel can be caused only with a central processing unit
Design it is excessively complicated, the number of plies of PCB is excessive, increase central processing unit panel difficulty and cost, while can also increase unit
The difficulty of device welding.In this device, the collection to ambient parameter is responsible for specially from a single-chip microcomputer, this not only can have
Effect reduces the resource of central processing unit and uses, and improves the ability of central processing unit processing detection signal, effectively can also carry
The flexibility ratio and reliability of high device, while also increasing the extended capability of the device.The single-chip microcomputer adopts MC9S08AC16
The minimum system of chip and its peripheral circuit composition.The chip has 40-MHZCPU clocks, and 20-MHz internal bus frequencies are high
Up to the FLASH modules of 16KB online programmings, general output I/O port is 38, internal to have programmable pull-up resistor, the core
Piece can effectively meet the use requirement of this device.
The central processing unit adopts the minimum system that S3C6410 processors and its peripheral circuit are constituted.The S3C6410
Processor belongs to one kind of arm processor, has many advantages, such as, most notable of which feature is exactly that it being capable of super low-power consumption fortune
OK, its power consumption of processing unit and interface line input leakage current are all in the industry cycle minimum, and small volumes, can reduce product
The volume of design, brings many facilities to use environment, and greatly reduces product cost.Only needing to during use must in addition
The peripheral circuit wanted makes its normal work, and its peripheral circuit mainly includes clock circuit, reset circuit and connecting interface etc.,
As its peripheral circuit is the conventional meanses of prior art, therefore which is not specifically described explanation.Certainly, the central processing unit is also
Dsp processor can be adopted, is not illustrated one by one here.For convenience of description, hereafter all will be using S3C6410 processors
Other modules are illustrated as a example by the central processing unit of composition.
The signal generating unit includes DDS signal generator, filtration module and the power amplifier module being sequentially connected electrically,
I.e. the outfan of DDS signal generator is connected with the input of filtration module, the outfan of the filtration module and power amplification
The input connection of module, the outfan of the central processing unit are connected with the input of DDS signal generator, and the power is put
The detection signal of big module output is input into from one end of tested winding.
The DDS signal generator is converted into by way of analog digital conversion for the digital quantity for exporting central processing unit
Analog output waveform, chip occurs by DDS for the DDS signal generator and its peripheral circuit is constituted, for example with AD9910,
Its concrete connection circuit diagram is not specifically described to its operation principle here as shown in Fig. 2 which is prior art.
Module is filtered the detection signal of the DDS signal generator output after filtering, picks out suitable frequency
Signal, so as to reduce interference, improves accuracy.The filtration module mainly includes low-pass filtering and high-pass filtering, is existing
Technology, according to service condition, decides in its sole discretion.
The signal for being filtered module output is passing through the further processing and amplifying of power amplifier module, because Transformer Winding
Overall resistance it is smaller, so the ability of input signal driving load must be increased.The power amplifier module is this area
The known technology of technical staff, is not specifically described here.For example with the power amplification of power amplifier chip AD8016 compositions
Being amplified to signal, concrete structure is as shown in figure 3, amplifier all the way in only having used the chip for module.The circuit diagram reality
Now to the arbitrarily enlarged of voltage signal, i.e., its amplification can be determined by controlling two digital regulation resistance MAX5483,
Therefore amplification is dynamic, is decided in its sole discretion according to service condition.After signal is exaggerated, the signal is taken as input signal
It is input to one end of tested winding.
First signal gathering unit and secondary signal collecting unit include be sequentially connected electrically Signal-regulated kinase,
The outfan of DC conversion modules and AD conversion module, i.e. Signal-regulated kinase is connected with the input of DC conversion modules, institute
State the outfan of DC conversion modules to be connected with the input of AD conversion module.The signal condition of first signal gathering unit
The input of module is connected with the outfan of power amplifier module, the output of the AD conversion module of first signal gathering unit
End be connected with the input of central processing unit, the input of the Signal-regulated kinase of the secondary signal collecting unit with it is tested around
The other end connection of group, the outfan of the AD conversion module of the secondary signal collecting unit are connected with the input of central processing unit
Connect, i.e. the first signal gathering unit is used for the signal for gathering tested winding signal input, secondary signal collecting unit is used to adopt
Collect the signal of tested winding signal outfan, so as to the signal according to two ends carries out Treatment Analysis, be just capable of achieving to tested winding
The detection of deformation, is contrasted by gathering signal at the two ends of tested winding simultaneously, so that testing result is more accurate.
The Signal-regulated kinase is filtered processing and amplifying for the signal to receiving, and the DC conversion modules are adopted
Constituted with AD637 chips and its peripheral circuit, physical circuit figure is as shown in figure 4, this chip detection precision comparison height, it detects
The principle of virtual value is the method changed using root-mean-square direct current, is changed, and its error precision is 1% to the maximum, it
Frequency band is relatively wide, and when the virtual value of input signal is 200mV, the frequency of input signal can reach 600KHz, when input letter
Number virtual value be 1V when, the frequency of input signal can reach 8MHz.In detection process, signal input to be detected is arrived
15 feet of AD637, connect 4.7uF average capacitances between CAV pins and output pin, and virtual value is exported from pin 11,
So far, sinusoidal signal is just converted to direct current signal.The output signal of the DC conversion modules after AD conversion module
It is transferred to central processing unit.The AD conversion module is prior art, is not specifically described here, for example with AD7625 moduluses
Conversion chip.
The touch display screen and data memory module are connected with central processing unit, and touch display screen is used to show detection
As a result the input with instruction, such as touch display screen adopt TFT electric resistance touch screens, as shown in figure 5, for TFT electric resistance touch screens
One embodiment circuit diagram, which is prior art, is not specifically described here.By arranging touch display screen, operation can be made more
Simply, while being easy to observe testing result.
The data memory module is used to store detection data, is checked so as to convenient afterwards.In order that structure is more
Optimization, low cost is low in energy consumption, and the data memory module can adopt Micro SD cards, the advantage of Micro SD cards not only
Only it is that its volume is small, it also has many advantages, such as reliability is high, speed is fast, storage capacity is strong, low in energy consumption, cost performance is high.
Device design can be made cost-effective, simplify design, be ensure that the substantial amounts of data of storage, and cause the reading side of data
Just, data processing and analysis after being brings facility.As shown in fig. 6, be Micro SD card hardware circuit diagrams, wherein R8, R9,
R10, R11 are pull-up resistor, it is ensured that the correctness of data transfer.Ql is metal-oxide-semiconductor, for controlling the power supply of SD card.Beat when upper electric
The on and off switch of SD card is opened, supply voltage is 3.3V.SD CS, SD SIMO, SD SOMI, SD UCLK are central processing unit and SD
The pin communicated by card, SD CS are selected for the piece of SD card, and its operation principle is prior art, is not specifically described here.Certainly
The data memory module can also select eeprom memory or other FLASH memories, not be illustrated one by one here.
The power module provides power supply for device.In Fig. 1 power module and not merely only with central processing unit and monolithic
Machine is attached, only to facilitate illustrating, the power module includes power supply and voltage transformation module, the voltage conversion mould
Block is for supply voltage to be converted into the voltage of multiple different numerical value, it is ensured that the normal use of each equipment.For example, voltage conversion
Module includes HT7533 chips and peripheral circuit composition, so as to by the burning voltage that 12V photovoltaic conversions are 3.3V, so as to ensure work
Make the equipment that voltage is 3.3V normally to use, physical circuit figure is as shown in Figure 7.AS1117S-3.3 voltage stabilizing chips can also be adopted
5V voltages are dropped to into 3.3V, the voltage transformation module also includes other conversion chips certainly, is not illustrated one by one here.It is described
Power module can also adopt various different voltage sources, i.e., do not adopt voltage transformation module, by different power supplys to difference
Equipment be powered, this spline structure can be complicated, but still can guarantee that the normal operation of this device.
This apparatus structure is simple, under the control of central processing unit, produces detection signal by signal generating unit, from quilt
The one end for surveying winding is input into, by the first signal gathering unit and secondary signal collecting unit respectively to tested winding two ends
Signal be acquired, by relative analyses, so as to draw the degree of deformation of tested winding, in the temperature for combining current collection and wet
Degree, so as to draw degree of deformation in the present context, it is ensured that the accuracy of testing result, while adopting modularized design, improves
The integrated level of whole system, enhances the ability of anti-outside electromagnetic interference.
This utility model is not limited to examples detailed above, in claims limited range of the present utility model, this
The various modifications or modification that art personnel can be made without creative work are protected by this patent.
Claims (7)
1. deformation of transformer winding detection means, it is characterised in that：Including temperature sensor, humidity sensor, single-chip microcomputer, central authorities
Processor, signal generating unit, the first signal gathering unit, secondary signal collecting unit, touch display screen, data memory module
And power module, the temperature sensor and humidity sensor be connected with single-chip microcomputer, and the single-chip microcomputer is connected with central processing unit
Connect, the signal generating unit includes DDS signal generator, filtration module and the power amplifier module being sequentially connected electrically, described
The outfan of central processing unit is connected with the input of DDS signal generator, the detection signal of the power amplifier module output
It is input into from one end of tested winding, first signal gathering unit and secondary signal collecting unit include what is be sequentially connected electrically
Signal-regulated kinase, DC conversion modules and AD conversion module, the Signal-regulated kinase of first signal gathering unit it is defeated
Enter end to be connected with the outfan of power amplifier module, outfan and the central authorities of the AD conversion module of first signal gathering unit
The input connection of processor, the input of the Signal-regulated kinase of the secondary signal collecting unit are another with tested winding
End connection, the outfan of AD conversion module of the secondary signal collecting unit is connected with the input of central processing unit, described
Touch display screen and data memory module are connected with central processing unit, and the power module provides power supply for device.
2. deformation of transformer winding detection means according to claim 1, it is characterised in that：The single-chip microcomputer is adopted
The minimum system of MC9S08AC16 chips and its peripheral circuit composition.
3. deformation of transformer winding detection means according to claim 1, it is characterised in that：The central processing unit is adopted
The minimum system of S3C6410 processors and its peripheral circuit composition.
4. deformation of transformer winding detection means according to claim 1, it is characterised in that：The DDS signal generator
There is chip by DDS and its peripheral circuit is constituted.
5. deformation of transformer winding detection means according to claim 1, it is characterised in that：The DC conversion modules are adopted
Constituted with AD637 chips and its peripheral circuit.
6. deformation of transformer winding detection means according to claim 1, it is characterised in that：The data memory module is adopted
Use Micro SD cards.
7. deformation of transformer winding detection means according to claim 1, it is characterised in that：The power module includes electricity
Source and voltage transformation module, the voltage transformation module is for supply voltage to be converted into the voltage of some different numerical value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621197607.4U CN206147035U (en) | 2016-11-07 | 2016-11-07 | Transformer winding deformation detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621197607.4U CN206147035U (en) | 2016-11-07 | 2016-11-07 | Transformer winding deformation detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206147035U true CN206147035U (en) | 2017-05-03 |
Family
ID=58625930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621197607.4U Expired - Fee Related CN206147035U (en) | 2016-11-07 | 2016-11-07 | Transformer winding deformation detection device |
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| Country | Link |
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| CN (1) | CN206147035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161470A (en) * | 2018-03-28 | 2019-08-23 | 中国人民解放军陆军工程大学军械士官学校 | A kind of realization scope display fast debugging platform |
-
2016
- 2016-11-07 CN CN201621197607.4U patent/CN206147035U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161470A (en) * | 2018-03-28 | 2019-08-23 | 中国人民解放军陆军工程大学军械士官学校 | A kind of realization scope display fast debugging platform |
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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: 20170503 Termination date: 20171107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |