CN208315341U - A kind of transformer automatic control vacuum oiling device - Google Patents
A kind of transformer automatic control vacuum oiling device Download PDFInfo
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- CN208315341U CN208315341U CN201821069827.8U CN201821069827U CN208315341U CN 208315341 U CN208315341 U CN 208315341U CN 201821069827 U CN201821069827 U CN 201821069827U CN 208315341 U CN208315341 U CN 208315341U
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- module
- transformer
- oil
- liquid level
- oiling device
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Abstract
A kind of transformer automatic control vacuum oiling device, including liquid level acquisition module, signal processing module, wireless communication module, one-chip computer module, alarm module, LCD MODULE, remote monitoring center.The liquid level acquisition module includes liquid level sensor, for acquiring transformer oil fuel level in tank；The signal processing module, the signal for acquiring liquid level sensor amplify, filtering processing；The wireless communication module, for oil tank of transformer oil level information to be transferred to one-chip computer module；The relay driving module, for controlling the opening/closing of inlet valve；The alarm module reminds staff's oiling to terminate for the automatic alarm when reaching a certain amount of oiling；The LCD MODULE is used for oil level information real-time display to staff.When reaching transformer automatic control vacuum oil using utility model device, the purpose of level height is automatically controlled.
Description
Technical field
The utility model one kind is related to oiling transformer monitoring technical field, and in particular to a kind of transformer automatic control is true
Empty oiling device.
Background technique
The insulation of oil-immersed power transformer is mainly realized by insulating materials, is the basic item of transformer normal operation
Part.In addition, the service life of transformer and the service life of insulating materials are closely bound up.Oil-immersed power transformer from manufacture and design to
Investment is used, it will passes through many links, factory is transported to in-site installation as the pith in numerous environment, if wherein
Mode goes wrong, it will generates electric power transformer insulated system dampness failure, causes the decreasing insulating of insulating materials, lead
There are unstable and potential risks in the power equipments operational process such as mutagens depressor.It is exhausted that moisture content will will cause circle when larger
Edge is averaged breakdown strength reduction, causes insulation fault, and capital equipment of the transformer as power grid, if it is former that humidified insulation occurs
Barrier, it would be possible to cause great equipment breakdown and loss of outage.
In electric system routine work, oiling transformer problem is frequently encountered, in order to effectively eliminating transformer oil
In bubble, improve transformer insulated level, especially to getting together in the biggish situation of formula coil turn-to-turn potential difference, prevent that there are gas
Bubble causes breakdown between adjacent turns accident, will vacuum oil to high-power transformer.Oiling will be with accurately for basic principle, due to transformer
Fuel tank is a closed container, can not observe directly true level height easily.The side of oil mass estimation is generallyd use at present
Method determines level height, such as taps tank wall, level height is judged according to echo, not can solve root problem, becomes to electric power
Still there is hidden danger in the safe operation of depressor.
Summary of the invention
Technical problem to be solved in the utility model is in view of the above shortcomings of the prior art, and to provide a kind of transformer
Automatically control vacuum oiling device, the oil by installing oil level display device on the transformer, in real-time display oil tank of transformer
Position, given threshold, while oil level is monitored by the liquid level sensor on oil level display device；When oiling is more than setting threshold
Value, liquid level sensor will test the nucleus module that data are transferred to automatic control device by wireless communication module, nucleus module
It is analysis integrated, control command, trigger relay are issued, to close oiling switch, fixed volume oiling is completed, reaches automatic control
The purpose of level height processed.
The technical solution that the utility model is taken are as follows:
A kind of transformer automatic control vacuum oiling device, including liquid level acquisition module, signal processing module, wireless telecommunications
Module, one-chip computer module, alarm module, LCD MODULE, remote monitoring center.
The liquid level acquisition module connection signal processing module, signal processing module connect wireless communication module, channel radio
It interrogates module and connects one-chip computer module, one-chip computer module is separately connected relay driving module, alarm module, LCD MODULE,
Remote monitoring center；
The liquid level acquisition module includes liquid level sensor, for acquiring transformer oil fuel level in tank；
The signal processing module, the signal for acquiring liquid level sensor amplify, filtering processing；
The wireless communication module, for oil tank of transformer oil level information to be transferred to one-chip computer module；
The relay driving module, for controlling the opening/closing of inlet valve；
The alarm module reminds staff's oiling to terminate for the automatic alarm when reaching a certain amount of oiling；
The LCD MODULE is used for oil level information real-time display to staff.
A glass tube is connected between portion and the oil inlet and oil outlet of lower part on the transformer, is marked above the glass tube
There is scale, the liquid level acquisition module is mounted at the top of glass tube, is equipped with one layer of filter layer, the mistake at the top of the glass tube
It is made of among filtering layer adsorbent, the impurity in air filtering can be crossed, moisture prevents air from entering in oil from glass tube；It is described
Glass tube upper and lower end is respectively communicated with into and out of oil pipe, is integrally formed a linker.
The liquid level sensor is the molten stainless steel level sensor of GLTV7S model.
The signal processing module includes sequentially connected: amplifier, the step low-pass of AD22055 model
The DAC analog-digital converter of ButterWorth filter circuit, DAC80004 model.
The one-chip computer module is AT89C2051 single-chip microcontroller.
The alarm module is audible alarm unit, and the audible alarm unit includes WT588D speech chip, using three
Line SPI mode passes through three communication line connections between one-chip computer module and WT588D speech chip；It is sent and is believed by one-chip computer module
Breath controls WT588D speech chip, realizes that speech chip order control, voice play.
The relay driving module includes relay driver ULN2803, relay, relay driver ULN2803
Connect the relay coil.
The LCD MODULE is LM016L LCD MODULE.
Vacuum oiling device is automatically controlled using a kind of transformer of the utility model, it is aobvious by installing oil level on the transformer
Oil level in showing device real-time display oil tank of transformer, given threshold, while passing through the liquid level sensor on oil level display device
Oil level is monitored, when oiling is more than given threshold, liquid level sensor will test data and is transferred to by wireless communication module
The nucleus module of automatic control device, nucleus module is analysis integrated, issues control command, trigger relay, to close oiling
Switch completes fixed volume oiling, achievees the purpose that automatically control level height.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is the system construction drawing of the utility model.
Fig. 2 is the relay driving module circuit diagram of the utility model.
Fig. 3 is the system master circuit diagram of the utility model.
Fig. 4 is the alarm module circuitry figure of the utility model.
Fig. 5 is the filter circuit figure of the utility model.
Fig. 6 is the LCD Display Interface Module circuit diagram of the utility model.
Specific embodiment
A kind of transformer automatic control vacuum oiling device, including liquid level acquisition module, signal processing module, wireless telecommunications
Module, one-chip computer module, alarm module, LCD MODULE, remote monitoring center.At the liquid level acquisition module connection signal
Module is managed, signal processing module connects wireless communication module, and wireless communication module connects one-chip computer module, one-chip computer module difference
Connect relay driving module, alarm module, LCD MODULE, remote monitoring center.
The liquid level acquisition module includes liquid level sensor, for acquiring transformer oil fuel level in tank；
The signal processing module, the signal for acquiring liquid level sensor amplify, filtering processing；
The wireless communication module, for oil tank of transformer oil level information to be transferred to one-chip computer module；
The relay driving module, for controlling the opening/closing of inlet valve；
The alarm module reminds staff's oiling to terminate for the automatic alarm when reaching a certain amount of oiling；
The LCD MODULE is used for oil level information real-time display to staff.
The remote monitoring center mainly carries out multiple oilings remotely to check control.One-chip computer module and long-range monitoring
Center is connected by Ethernet.
A glass tube is connected between portion and the oil inlet and oil outlet of lower part on the transformer, is marked above the glass tube
There is scale, the liquid level acquisition module is mounted at the top of glass tube, is equipped with one layer of filter layer, the mistake at the top of the glass tube
It is made of among filtering layer adsorbent, the impurity in air filtering can be crossed, moisture prevents air from entering in oil from glass tube；It is described
Glass tube upper and lower end is respectively communicated with into and out of oil pipe, is integrally formed a linker.Therefore the liquid level inside mailbox is outside fuel tank
Can real-time display, and by monitoring fuel tank outside liquid level, can be with remote auto control oiling.
The liquid level sensor is the molten stainless steel level sensor of GLTV7S model, and the molten stainless steel level sensor has
The advantages that installation is simple, corrosion-resistant, wear-resistant；It can also support a variety of way of outputs, can be effectively used for oil level monitoring.
The signal processing module includes sequentially connected: amplifier, the step low-pass of AD22055 model
The DAC analog-digital converter of ButterWorth filter circuit, DAC80004 model.
Since the working environment of transformer is more complicated, ambient noise is very big, and electromagnetic interference is also relatively more, so liquid level passes
Sensor received signal is more miscellaneous, if without signal processing, it is easy to signal be caused not receive.The signal processing mould
Block first has to amplify the signal that molten stainless steel level sensor issues processing, and the amplified signal uses AD22055 model
Amplifier, and then carry out signal filtering processing, signal filtering uses step low-pass ButterWorth filter circuit.
It is amplifying, after filtering, what it is due to transmission is analog signal, cannot be received by single-chip microcontroller, it is also necessary to carry out analog signal and turn
Change digital signal, the DAC analog-digital converter of the analog-digital converter selection model DAC80004 model into.Passing through amplification,
It filters, after analog-to-digital conversion, the signal of transmission is transferred to one-chip computer module by wireless Zigbee.
The one-chip computer module is AT89C2051 single-chip microcontroller, has the advantages that extremely low power dissipation, high-performance, precision is high.
The alarm module is audible alarm unit, and the audible alarm unit includes WT588D speech chip, using three
Line SPI mode passes through three communication line connections between one-chip computer module and WT588D speech chip；It is sent and is believed by one-chip computer module
Breath controls WT588D speech chip, realizes that speech chip order control, voice play, fully meeting substation field makes
With.
The relay driving module includes relay driver ULN2803, relay, relay driver ULN2803
Connect the relay coil.
The LCD MODULE is LM016L LCD MODULE, is inside integrated with common instruction set, and containing control
The functions such as character blinking, movement may be implemented in device.The LCD MODULE by two 74HC595 latch respectively come to row,
Alignment carries out drive control, shows to carry out liquid level.
Fig. 2 is relay driving module schematic diagram.Less electromagnetic valve switch circuit mainly by relay driver ULN2803 and after
Electric appliance composition.ULN2803 is eight road NPN Darlingtons connection transistor array, is suitable for the flat digital circuit of low logic point and higher
Interface between electric current, voltage requirement.Here 5V relay, the direct contact relay coil one of ULN2803 output end are driven with it
End, the input terminal of another termination+5V power supply of relay coil, ULN2803 are directly connected with I/O mouthfuls of wireless control, wireless controlled
Donsole output high level just drives the actuating of relay.
Fig. 3 is the main control circuit figure of system.Major function is the signal for reading each detection module, processing detection number
According to, to executive device send control signal.The circuit is by microprocessor AT89C2051, capacitor C1, C2, C3, crystal oscillator Y2 composition.
AT89C2051 single-chip microcontroller is main control chip, and P3.0 ~ P3.5 is as each detection module signal input port, the output of the end P1.0 ~ P1.7
It controls signal and controls execution part action response.
Fig. 4 is audible alarm circuit.In the present invention, when detection system detects in transformer oiling to a stand oil
When position, system can make a sound alarm automatically, and prompting staff overhauls and prevent accident generation.The module core is
WT588D speech chip is connected by three communication lines between single-chip microcontroller U1 and WT588D using three line SPI modes, is respectively
Chip selection signal CS, data-signal MISO and clock signal SCLK, timing follow standard SPI communication mode.It is sent and is believed by single-chip microcontroller
Breath controls WT588D, realizes that speech chip order control, voice play.P17 is BUSY busy signal output end, signal
It can be configured.BUSY output low level when voice starts to play is set in the module, and it is high that voice plays end BUSY output
Level, whether voltage is close to VDD supply voltage when high level, for terminating as voice broadcasting or busy signal judgement.Power supply electricity
VDD use+5V power supply is pressed, VCC is powered using 3.3V.Audio signal is exported by the end DAC.It is stored using M25P32VMW6TG specific
Voice signal, be 32Mbit (4M*8) serial flash memory, have enhancing write protection structure.Access is total using SPI
Wire protocol.
Fig. 5 is filter circuit.Since the working environment noise of infrared sensor is more, so in the design, considering to use
Step low-pass ButterWorth filter circuit is filtered signal.The second order voltage controlled voltage source low pass of the utility model design
Filter is made of the in-phase proportion amplifying circuit that R5, C16 and R6, two section RC filter circuit of C17 and R7, R8 are formed, wherein
In-phase proportion amplifying circuit is actually voltage controlled voltage source.Its main feature is that input impedance is high, output impedance is low.In-phase proportion is put
The voltage gain of big circuit is exactly the passband voltage gain of low-pass filter.Input signal OUT by two section RC filter circuits and
After the filtering of in-phase proportion amplifying circuit, output signal SOUT.
Fig. 6 is display interface circuit.System display portion uses LM016L liquid crystal block, is inside integrated with common instruction
Collection, and contain controller, the functions such as character blinking, movement may be implemented, single-chip microcontroller is communicated with LM016L can be used parallel transmission side
Formula, this system are communicated using 8 parallel-by-bits.
Claims (8)
1. a kind of transformer automatically controls vacuum oiling device, including liquid level acquisition module, signal processing module, wireless telecommunications mould
Block, one-chip computer module, alarm module, LCD MODULE, remote monitoring center, it is characterised in that:
The liquid level acquisition module connection signal processing module, signal processing module connect wireless communication module, wireless telecommunications mould
Block connects one-chip computer module, and one-chip computer module is separately connected relay driving module, alarm module, LCD MODULE, long-range
Monitoring center；
The liquid level acquisition module includes liquid level sensor, for acquiring transformer oil fuel level in tank；
The signal processing module, the signal for acquiring liquid level sensor amplify, filtering processing；
The wireless communication module, for oil tank of transformer oil level information to be transferred to one-chip computer module；
The relay driving module, for controlling the opening/closing of inlet valve；
The alarm module is used for automatic alarm when oiling, and staff's oiling is reminded to terminate；
The LCD MODULE is used for oil level information real-time display to staff.
2. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: portion on the transformer
A glass tube is connected between the oil inlet and oil outlet of lower part, and scale, the liquid level acquisition are indicated above the glass tube
Module is mounted at the top of glass tube, is equipped with one layer of filter layer at the top of the glass tube, by adsorbent group among the filter layer
At the impurity in air filtering can be crossed, and moisture prevents air from entering in oil from glass tube；The glass tube upper and lower end connects respectively
Lead into and out of oil pipe, is integrally formed a linker.
3. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: the level sensing
Device is the molten stainless steel level sensor of GLTV7S model.
4. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: the signal processing
Module includes sequentially connected: amplifier, the step low-pass ButterWorth filter circuit, DAC80004 type of AD22055 model
Number DAC analog-digital converter.
5. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: the single-chip microcontroller mould
Block is AT89C2051 single-chip microcontroller.
6. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: the alarm module
For audible alarm unit, the audible alarm unit includes WT588D speech chip, using three line SPI modes, one-chip computer module
It is connect between WT588D speech chip by three communication lines；By one-chip computer module send information to WT588D speech chip into
Row control realizes that speech chip order control, voice play.
7. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: the relay drives
Dynamic model block includes relay driver ULN2803, relay, the relay driver ULN2803 connection relay coil.
8. a kind of transformer automatically controls vacuum oiling device according to claim 1, it is characterised in that: the liquid crystal display
Module is LM016L LCD MODULE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069827.8U CN208315341U (en) | 2018-07-06 | 2018-07-06 | A kind of transformer automatic control vacuum oiling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069827.8U CN208315341U (en) | 2018-07-06 | 2018-07-06 | A kind of transformer automatic control vacuum oiling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208315341U true CN208315341U (en) | 2019-01-01 |
Family
ID=64717879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821069827.8U Expired - Fee Related CN208315341U (en) | 2018-07-06 | 2018-07-06 | A kind of transformer automatic control vacuum oiling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208315341U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686062A (en) * | 2019-01-23 | 2019-04-26 | 安恒环境科技（北京）股份有限公司 | Water quality automatic Weather Station waste liquid online monitoring alarm system |
| CN113110184A (en) * | 2021-04-19 | 2021-07-13 | 江西清华泰豪三波电机有限公司 | Equipment control device and system |
| CN115621019A (en) * | 2022-08-22 | 2023-01-17 | 国网宁夏电力有限公司吴忠供电公司 | Multifunctional monitoring platform and method for vacuum oil injection of transformer |
-
2018
- 2018-07-06 CN CN201821069827.8U patent/CN208315341U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686062A (en) * | 2019-01-23 | 2019-04-26 | 安恒环境科技（北京）股份有限公司 | Water quality automatic Weather Station waste liquid online monitoring alarm system |
| CN113110184A (en) * | 2021-04-19 | 2021-07-13 | 江西清华泰豪三波电机有限公司 | Equipment control device and system |
| CN115621019A (en) * | 2022-08-22 | 2023-01-17 | 国网宁夏电力有限公司吴忠供电公司 | Multifunctional monitoring platform and method for vacuum oil injection of transformer |
| CN115621019B (en) * | 2022-08-22 | 2024-04-12 | 国网宁夏电力有限公司吴忠供电公司 | Multifunctional monitoring platform and monitoring method for vacuum oil injection of transformer |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20190706 |