CN105843267A - Transformer oil level monitoring matching device and working method thereof - Google Patents
Transformer oil level monitoring matching device and working method thereof Download PDFInfo
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- CN105843267A CN105843267A CN201610428224.1A CN201610428224A CN105843267A CN 105843267 A CN105843267 A CN 105843267A CN 201610428224 A CN201610428224 A CN 201610428224A CN 105843267 A CN105843267 A CN 105843267A
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- Prior art keywords
- oil level
- transformer oil
- electric parameters
- mobile terminal
- transformer
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Abstract
The invention relates to a transformer oil level monitoring matching device and a working method thereof. The transformer oil level monitoring matching device comprises an oil level electrical quantity test device, a microprocessor, a bluetooth module, a mobile terminal and a background monitoring host. The oil level electrical quantity test device is connected with the background monitoring host through a communication cable. The oil level electrical quantity test device, the microprocessor, the bluetooth module and the mobile terminal are connected in turn. The physical quantity of the transformer oil level is directly converted into the electrical quantity of the transformer oil level so that an intermediate analog-to-digital conversion link and other links are omitted and measurement precision and accuracy can be enhanced. Three means of in-situ observation, mobile terminal monitoring and background monitoring host monitoring are realized so that insufficiency of information acquisition quantity of the existing monitoring host can be compensated and the transformer oil level information quantity can be increased; and the mobile terminal can also be used, and pairing connection is performed through the bluetooth module so that remote signaling alignment can performed near a transformer substation through operation of only one electrical work personnel, and consistency of in-situ and remote information can be verified.
Description
Technical field
The present invention relates to a kind of transformer oil level monitoring corollary apparatus and method of work thereof, belong to electric power applied technical field.
Background technology
In transformer station, oil-immersed type transformer application relatively broad, transformer oil is insulation and the heat eliminating medium of transformator, 35kV and
In above or the bigger 10kV oil-immersed type transformer of capacity, transformation in the conservator (both oil conservaters) that oil level indicator shows
The pasta height of device oil, referred to as transformer oil level, affected by the factor such as temperature, leakage of oil, transformer oil level can change.
Oil level indicator scale display oil level higher than conservator capacity 90% and less than conservator capacity 10% time, be defined as transformator
Oil level is abnormal.At present, the monitoring of oil level depends entirely on operations staff, by operations staff according to making an inspection tour cycle routine observation oil level
Meter scale.There is following defect in this method: 1, periodical inspection, it is impossible to monitor oil level in real time.2, periodical inspection, it is impossible to send out in time
Existing oil level is abnormal.3, when finding that oil level is higher or on the low side, operations staff must shorten the tour cycle, adds manpower, financial resources
Put into.
In transformator running, the change of oil temperature causes the change of oil level, to this end, large oil immersed transformator needs to provide storage
Oil Tank fuel tank realizes the oil level compensation with oil temperature.Owing to oil conservater fuel tank is opaque metallic article, showing of existing oil level
Show instruction to need by oil level indicator to realize, for accurately judging the truth of transformer oil level, the most all have when main transformer dispatches from the factory
One oil temperature oil level comparison table, i.e. usually described oil temperature oil level relation line.It is installed for our field apparatus, runs and patrol
Important reference frame is provided depending on the observation of, oil level.
At present, from existing tour table it is known that make an inspection tour task heavy, and if make an inspection tour during, operations staff find
Oil level is higher or on the low side, and in order to avoid, oil level is abnormal to be occurred, then must suitably shorten tour cycle, workload according to equipment situation
Being multiplied, human, financial, and material resources puts into and strengthens, and power grid maintenance cost is greatly increased.Current oil level monitoring mode is passive, delayed,
Transformer oil level situation can not be reflected in real time, and the delayed of information easily leads to a disaster, and constitutes a latent danger the safety of electrical network, therefore,
The most gradually it is difficult to meet requirement.
During power equipment longtime running, for monitoring device operational reliability, need equipment is verified, remote measurement, remote signalling etc.
Quantity of information is checked, but in real work, is at least carried out by two people, and wherein a people debugs at equipment, and a people supervises on backstage
Control main frame is checked, two people pass through telephone contact, and this work causes the wasting of resources of human and material resources.
Along with emerging in an endless stream and the continuous input of new equipment of new technique, electrical network initially enter digitized, informationization, interactive,
Intellectualization times.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of transformer oil level monitoring corollary apparatus.
Present invention also offers the method for work of above-mentioned transformer oil level monitoring corollary apparatus.
The technical scheme is that
A kind of transformer oil level monitoring corollary apparatus, including: oil level electric parameters test device, microprocessor, bluetooth module, shifting
Dynamic terminal, background monitoring main frame, described oil level electric parameters test device connects described background monitoring main frame, institute by communication cable
State oil level electric parameters test device, described microprocessor, described bluetooth module, described mobile terminal are sequentially connected with；
Described oil level electric parameters test device is used for the physical quantity of measuring transformer oil level, and by direct for the physical quantity of transformer oil level
Change into the electric parameters of transformer oil level, and be respectively sent to described microprocessor and described background monitoring main frame；
Described background monitoring main frame is for showing the electric parameters of transformer oil level；
The electric parameters of described microprocessor processes transformer oil level, and by described bluetooth module, the electric parameters of transformer oil level is sent out
Deliver to described mobile terminal；
Described mobile terminal is for showing the electric parameters of transformer oil level.
The advantage herein designed is, the physical quantity of transformer oil level is directly translated into the electric parameters of transformer oil level by the present invention,
Eliminate the links such as middle analog digital conversion, improve certainty of measurement and accuracy.Achieve observation on the spot, mobile terminal monitoring
With three kinds of means of background monitoring host supervision, the deficiency of existing monitoring host computer information gathering amount can be compensate for, add transformator
Oil level information amount；Mobile terminal can be used again, after being connected by bluetooth module pairing, it is possible to reach only to need near transformer station
One electrician's operation just can verify the most consistent with distant place information on the spot with remote signalling para-position.
According to currently preferred, described oil level electric parameters test device includes: U-shaped communicating pipe one, floating ball device, U-shaped company
Siphunculus two, one end of described U-shaped communicating pipe one and the open communication of oil conservater tank bottoms, another of described U-shaped communicating pipe one
End connects the bottom of described floating ball device, and the top of described floating ball device connects one end of described U-shaped communicating pipe two, described ball float
The height of device is more than or equal to the height of described oil conservater fuel tank；
Described floating ball device includes: ball float, connecting rod, rheostat, is vertically arranged with connecting rod in described floating ball device, described
Ball float is provided with a hole run through, and described ball float is sleeved on described connecting rod by described hole is smooth, and the side of described ball float leads to
Crossing slide plate and connect the moving plate pin of rheostat, the stator pin of described rheostat connects described microprocessor, described floating
The opposite side of ball connects described microprocessor.
The operation principle of described oil level electric parameters test device is: ball float density is less than oil density, floats at pasta, and ball float is upper and lower
Drive slide plate during floating, and then change the resistance accessing rheostat part, slide plate slides and meets the highest oil of transformator in operation
Position and the restriction of minimum oil level, therefore, access resistance value change between the maxima and minima measured of rheostat part
Changing, apply a rated voltage, current value changes the most therewith, and meets linearity curve relation, can realize oil level physical quantity and change extremely
Electric parameters, as signal export, path one exports the microprocessor to floating ball device, path two by communication cable export to
Background monitoring main frame.
According to currently preferred, described oil level electric parameters test device also includes: U-shaped communicating pipe three, respiratory organ one, breathing
Device two, the other end of described U-shaped communicating pipe two connects on respiratory organ one, one end of described U-shaped communicating pipe three and oil conservater fuel tank
The open communication in portion, the other end of described U-shaped communicating pipe three connects respiratory organ two.
The advantage herein designed is, the content of micro-water in transformer oil determines that the parameter of transformer insulated quality, and moisture can break
The insulating properties of bad transformer oil, constitute a latent danger to the safe and stable operation of transformator, and the setting of respiratory organ one and respiratory organ two subtracts
Lacked moisture in air to enter in transformer oil, it addition, transformer oil is low in temperature or load few in the case of, during oil shrinkage
Absorb the moisture in air, monitor described respiratory organ one by the floating of ball float and respiratory organ two is the most unimpeded.
The principle of application linker, it may be assumed that the container that bottom interconnects, injects same liquid, the liquid of each container in linker
Face always remains in same level.Therefore, the oil level in ball float can show oil conservater fuel tank.
According to currently preferred, described U-shaped communicating pipe one is provided with valve.
The advantage herein designed is, the oil being provided for isolating in floating ball device and the oil in oil conservater fuel tank of valve, meets
Floating ball device inspection, the accuracy requirement of test.
According to currently preferred, described background monitoring main frame is provided with digital display module.
Digital display module is for showing the electric parameters of transformer oil level.
According to currently preferred, the outer surface of described floating ball device is provided with scale.
The advantage herein designed is, can be read the height of pasta by scale.
According to currently preferred, the model of described microprocessor is Arduino.
Arduino is a convenient electronics Prototyping Platform of increasing income flexibly, is implemented in simple I/O interface version of increasing income, and has
Use Java, the Processing/Wiring development environment of C language.Arduino comprises two main parts: hardware components is
Can be used to make the Arduino circuit board that circuit connects；Another one is then the program development in Arduino IDE, i.e. computer
Environment.In the IDE environment of computer, utilize the code in data base, write, debug the program of device for monitoring oil level of the present invention
Code, after burning program to Arduino circuit board, can realize monitoring in mobile terminal the electric parameters signal of transformer oil level
Function.
According to currently preferred, described bluetooth module is HC-05 principal and subordinate's integrated module, VCC on bluetooth module, GND,
Tetra-pins of TXD, RXD are respectively connecting to tetra-pins of VCC, GND, RXD, TXD of described microprocessor, VCC
It is that grounding pin, TXD are for sending pin, RXD for receiving pin for power pins, GND.
HC-05 principal and subordinate's integrated module is a high performance bluetooth serial ports module, can be used for the computer of various band Bluetooth function, hands
Other equipment such as machine.
The present invention utilizes this wireless technology standard of bluetooth, uses the UHF radio wave of the ISM band of 2.4-2.485GHz,
Little with 50Hz alternating-current installation/AC installation interference in transformer station, communication distance can realize apparatus of the present invention and the mobile device such as flat board, mobile phone
Data exchange, thus fast, precisely, have effectively achieved detection transformer oil level state purpose.
According to currently preferred, described mobile terminal is mobile phone.
The method of work of above-mentioned transformer oil level monitoring corollary apparatus, concrete steps include:
(1) when transformer oil expands with heat and contract with cold, described ball float fluctuates with pasta, and the floating of described ball float drives described slide plate
Sliding up and down, change the resistance accessing active component of described rheostat, oil level physical quantity is changed to electric parameters, and is produced
Oil level signal；
(2) oil level signal that described step (1) produces sends to described microprocessor, and described microprocessor is by described bluetooth
Oil level signal is sent to described mobile terminal by module；Meanwhile, the oil level signal that described step (1) produces also sends to institute
State background monitoring main frame；
(3) electric parameters of described mobile terminal display transformer oil level, described background monitoring main frame shows the electric of transformer oil level
Amount.
First, oil level signal is continuous print decimal scale electric parameters, and this electric parameters signal is wired to the selected of Arduino circuit board
Input interface on, utilize Arduino program library to write the related program code of this input interface, at the Arduino IDE of computer
Environment downloads in Arduino, to realize input and the process of signal.Complete the acquisition circuit line of transformer oil level signal；
Then, bluetooth module is set, utilizes Arduino program library to write the program code of bluetooth module communication, at computer
ArduinoIDE environment downloads in Arduino, by tetra-pins of VCC, GND, TXD, the RXD on bluetooth module
It is respectively connecting to tetra-pins of VCC, GND, RXD, TXD of described microprocessor Arduino, it is achieved that bluetooth module
Transmit with the data of microprocessor, it is possible to achieve transformer oil level signal is gone out by Bluetooth signal transmission；3rd, moving
Install and open the most widely used bluetooth serial ports software in terminal, such as " Bluetoothspp " software, connect HC-05
Principal and subordinate's integrated module, after pairing successful connection, refreshes bluetooth serial ports software, can realize the reception of oil level information, check.?
On the basis of this, can be with coding, the user interface of self-defined bluetooth serial ports software so that the display of transformer oil level information is more
It is directly perceived, convenient to add；Converting station electric power staff verify oil level electric parameters test device longtime running reliability, and verification,
When verifying that information is the most consistent with distant place information on the spot, hand-held described mobile terminal, carries to transformator, can realize a people
Just can complete the verification of transformer oil level electric parameters test device, solve and need people's field apparatus debugging, a people backstage in the past
The drawback that remote signalling checks；It addition, another path producing oil level signal is sent to described background monitoring main frame by communication cable,
Background monitoring main frame is installed and runs numerical monitor software, by the electric quantity information numerical monitor of this transformer oil level in backstage
On monitoring host computer screen.When converting station electric power staff makes an inspection tour, by checking that the information on background monitoring main frame can realize becoming
The monitoring of depressor oil level.
The invention have the benefit that
1, the physical quantity of transformer oil level is directly translated into the electric parameters of transformer oil level by the present invention, and the modulus eliminating centre turns
The link such as change, improve certainty of measurement and accuracy.Achieve observation on the spot, mobile terminal monitoring and background monitoring host supervision
Three kinds of means, can compensate for the deficiency of existing monitoring host computer information gathering amount, supplement and add transformer oil level information monitoring amount；
Mobile terminal can be used again, after being connected by bluetooth module pairing, it is possible to reach only to need an electrical installation near transformer station
Human users just can verify purpose the most consistent with distant place information on the spot with remote signalling para-position.
2, during the setting of respiratory organ one of the present invention and respirator two decreases the moisture entrance transformer oil in air, it addition,
Transformer oil is when shrinkage or when expanding, and by fluctuating of observation ball float, carrys out respiratory organ one described in indirect monitoring and breathes
Whether machine two exists not smooth situation.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the present invention；
Fig. 2 is the structure connection figure of oil level electric parameters of the present invention test device；
Fig. 3 is the structural representation of floating ball device of the present invention；
Wherein, 1, oil level electric parameters test device, 2, microprocessor, 3, bluetooth module, 4, mobile terminal, 5, backstage prison
Control main frame, 6, U-shaped communicating pipe one, 7, floating ball device, 8, U-shaped communicating pipe two, 9, ball float, 10, connecting rod, 11, can
Variohm, 12, respiratory organ one, 13, U-shaped communicating pipe three, 14, respiratory organ two, 15, valve.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, the present invention is further qualified, but is not limited to this.
Embodiment 1
A kind of transformer oil level monitoring corollary apparatus, including: oil level electric parameters test device 1, microprocessor 2, bluetooth module 3,
Mobile terminal 4, background monitoring main frame 5, described oil level electric parameters test device 1 connects described background monitoring master by communication cable
Machine 5, described oil level electric parameters test device 1, described microprocessor 2, described bluetooth module 3, described mobile terminal 4 are successively
Connect；The structured flowchart of the present invention is as shown in Figure 1.
Described oil level electric parameters test device 1 is used for the physical quantity of measuring transformer oil level, and by straight for the physical quantity of transformer oil level
Switch through the electric parameters of chemical conversion transformer oil level, and be respectively sent to described microprocessor 2 and described background monitoring main frame 5；
Described background monitoring main frame 5 is for showing the electric parameters of transformer oil level；
Described microprocessor 2 processes the electric parameters of transformer oil level, and by described bluetooth module by the electric parameters of transformer oil level
Send to described mobile terminal 4；
Described mobile terminal 4 is for showing the electric parameters of transformer oil level.
The advantage herein designed is, the physical quantity of transformer oil level is directly translated into the electric parameters of transformer oil level by the present invention,
Eliminate the links such as middle analog digital conversion, improve certainty of measurement and accuracy.Achieve observation on the spot, mobile terminal monitoring
With three kinds of means of background monitoring host supervision, the deficiency of existing monitoring host computer information gathering amount can be compensate for, add transformator
Oil level information amount；Mobile terminal 4 can be used again, after being connected by bluetooth module pairing, it is possible to only reach near transformer station
Need electrician's operation just can verify the most consistent with distant place information on the spot with remote signalling para-position.
Described oil level electric parameters test device 1 includes: U-shaped communicating pipe 1, floating ball device 7, U-shaped communicating pipe 28, described
One end of U-shaped communicating pipe 1 and the open communication of oil conservater tank bottoms, the other end of described U-shaped communicating pipe 1 connects institute
Stating the bottom of floating ball device 7, the top of described floating ball device 7 connects one end of described U-shaped communicating pipe 28, and described ball float fills
Put the height of 7 height more than or equal to described oil conservater fuel tank；The structure of oil level electric parameters of the present invention test device connects
Figure is as shown in Figure 2.
Described floating ball device 7 includes: ball float 9, connecting rod 10, rheostat 11, is vertically arranged with in described floating ball device 7
Connecting rod 10, described ball float 9 is provided with a hole run through, and described ball float 9 is sleeved on described connecting rod 10 by described hole is smooth
On, the side of described ball float 9 connects the moving plate pin of rheostat 11, the stator of described rheostat 11 by slide plate
Pin connects described microprocessor 2, and the opposite side of described ball float 9 connects described microprocessor 2.Floating ball device 7 of the present invention
Structural representation as shown in Figure 3.
The operation principle of described oil level electric parameters test device is: ball float 9 density is less than oil density, floats at pasta, ball float 9
Drive slide plate when fluctuating, and then change the resistance accessing rheostat 11 part, slide plate slides and meets transformator in operation
The highest oil level and the restriction of minimum oil level, therefore, access the resistance value of rheostat 11 part in the maximum measured and minimum
Changing between value, apply a rated voltage, current value changes the most therewith, and meets linearity curve relation, can realize oil level physics
Amount conversion, to electric parameters, exports as signal, and path one exports the microprocessor 2 to floating ball device 7, and path two is by logical
Communication cable exports to background monitoring main frame 5.
Described oil level electric parameters test device also includes: U-shaped communicating pipe 3 13, respiratory organ 1, respiratory organ 2 14, described U
The other end of type communicating pipe 28 connects respiratory organ 1, one end of described U-shaped communicating pipe 3 13 and oil conservater fuel tank top
Open communication, the other end of described U-shaped communicating pipe 3 13 connects respiratory organ 2 14.
The advantage herein designed is, the content of micro-water in transformer oil determines that the parameter of transformer insulated quality, and moisture can break
The insulating properties of bad transformer oil, constitute a latent danger to the safe and stable operation of transformator, respiratory organ 1 and respiratory organ 2 14
Arrange and decrease moisture in air and enter in transformer oil, it addition, transformer oil is low in temperature or load few in the case of, oil
Absorb the moisture in air during shrinkage, monitor described respiratory organ 1 by the floating of ball float 9 and respiratory organ 2 14 is the most unimpeded.
The principle of application linker, it may be assumed that the container that bottom interconnects, injects same liquid, the liquid of each container in linker
Face always remains in same level.Therefore, the oil level in ball float 9 can show oil conservater fuel tank.
It is provided with valve 15 on described U-shaped communicating pipe 1.
The advantage herein designed is, the oil being provided for isolating in floating ball device and the oil in oil conservater fuel tank of valve 15, full
Foot floating ball device inspection, the accuracy requirement of test.
Described background monitoring main frame 5 is provided with digital display module.
Digital display module is for showing the electric parameters of transformer oil level.
The outer surface of described floating ball device 7 is provided with scale.
The advantage herein designed is, can be read the height of pasta by scale.
The model of described microprocessor 2 is Arduino.
Arduino is a convenient electronics Prototyping Platform of increasing income flexibly, is implemented in simple I/O interface version of increasing income, and has
Use Java, the Processing/Wiring development environment of C language.Arduino comprises two main parts: hardware components is
Can be used to make the Arduino circuit board that circuit connects；Another one is then the program development in Arduino IDE, i.e. computer
Environment.In the IDE environment of computer, utilize the code in data base, write, debug the program of device for monitoring oil level of the present invention
Code, after burning program to Arduino circuit board, can realize monitoring in mobile terminal 4 the electric parameters letter of transformer oil level
Number function.
Described bluetooth module 3 is HC-05 principal and subordinate's integrated module, VCC, GND, TXD, the RXD tetra-on bluetooth module 3
Individual pin is respectively connecting to tetra-pins of VCC, GND, RXD, TXD of described microprocessor 2, VCC be power pins,
GND is that grounding pin, TXD are for sending pin, RXD for receiving pin.
HC-05 principal and subordinate's integrated module is a high performance bluetooth serial ports module, can be used for the computer of various band Bluetooth function, hands
Other equipment such as machine.
The present invention utilizes this wireless technology standard of bluetooth, uses the UHF radio wave of the ISM band of 2.4-2.485GHz,
Little with 50Hz alternating-current installation/AC installation interference in transformer station, communication distance can realize the transformer station present invention and set with the movement such as flat board, mobile phone
Standby data exchange, thus fast, precisely, have effectively achieved the purpose of detection transformer oil level state.
Described mobile terminal 4 is mobile phone.
Embodiment 2
The method of work of a kind of transformer oil level monitoring corollary apparatus described in embodiment 1, concrete steps include:
(1) when transformer oil expands with heat and contract with cold, described ball float 9 fluctuates with pasta, and the floating of described ball float 9 drives described
Slide plate slides up and down, and changes the resistance accessing active component of described rheostat 11, and oil level physical quantity is changed to electric parameters,
And produce oil level signal；
(2) oil level signal that described step (1) produces sends to described microprocessor 2, and described microprocessor 2 is by described
Oil level signal is sent to described mobile terminal 4 by bluetooth module 3；Meanwhile, the oil level signal that described step (1) produces is also
Send to described background monitoring main frame 5；
(3) described mobile terminal 4 shows that the electric parameters of transformer oil level, described background monitoring main frame 5 show transformer oil level
Electric parameters.
Claims (9)
1. transformer oil level monitoring corollary apparatus, it is characterised in that including: oil level electric parameters test device, microprocessor,
Bluetooth module, mobile terminal, background monitoring main frame, described oil level electric parameters test device connects described backstage by communication cable
Monitoring host computer, described oil level electric parameters test device, described microprocessor, described bluetooth module, described mobile terminal connect successively
Connect；
Described oil level electric parameters test device is used for the physical quantity of measuring transformer oil level, and by direct for the physical quantity of transformer oil level
Change into the electric parameters of transformer oil level, and be respectively sent to described microprocessor and described background monitoring main frame；
Described background monitoring main frame is for showing the electric parameters of transformer oil level；
The electric parameters of described microprocessor processes transformer oil level, and by described bluetooth module, the electric parameters of transformer oil level is sent out
Deliver to described mobile terminal；
Described mobile terminal is for showing the electric parameters of transformer oil level.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 1, it is characterised in that described oil level electric parameters
Test device includes: U-shaped communicating pipe one, floating ball device, U-shaped communicating pipe two, one end of described U-shaped communicating pipe one and oil storage
The open communication of cabinet tank bottoms, the other end of described U-shaped communicating pipe one connects the bottom of described floating ball device, and described ball float fills
The top put connects one end of described U-shaped communicating pipe two, and the height of described floating ball device is more than or equal to described oil conservater fuel tank
Highly；
Described floating ball device includes: ball float, connecting rod, rheostat, is vertically arranged with connecting rod in described floating ball device, described
Ball float is provided with a hole run through, and described ball float is sleeved on described connecting rod by described hole is smooth, and the side of described ball float leads to
Crossing slide plate and connect the moving plate pin of rheostat, the stator pin of described rheostat connects described microprocessor, described floating
The opposite side of ball connects described microprocessor.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 2, it is characterised in that described oil level electric parameters
Test device also includes: U-shaped communicating pipe three, respiratory organ one, respiratory organ two, and the other end of described U-shaped communicating pipe two connects exhales
Haustorium one, one end of described U-shaped communicating pipe three and the open communication on oil conservater fuel tank top, another of described U-shaped communicating pipe three
End connects respiratory organ two.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 2, it is characterised in that described U-shaped connection
It is provided with valve on pipe one.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 1, it is characterised in that described background monitoring master
Machine is provided with digital display module.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 1, it is characterised in that described microprocessor
Model is Arduino.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 1, it is characterised in that described bluetooth module is
HC-05 principal and subordinate's integrated module, tetra-pins of VCC, GND, TXD, the RXD on bluetooth module are respectively connecting to described micro-
Tetra-pins of VCC, GND, RXD, TXD of processor, VCC be power pins, GND be grounding pin, TXD
For sending pin, RXD for receiving pin.
A kind of transformer oil level monitoring corollary apparatus the most according to claim 1, it is characterised in that described mobile terminal is
Mobile phone.
9. the method for work of the arbitrary described a kind of transformer oil level monitoring corollary apparatus of claim 1-8, it is characterised in that tool
Body step includes:
(1) when transformer oil expands with heat and contract with cold, described ball float fluctuates with pasta, and the floating of described ball float drives described slide plate
Sliding up and down, change the resistance accessing active component of described rheostat, oil level physical quantity is changed to electric parameters, and is produced
Oil level signal；
(2) oil level signal that described step (1) produces sends to described microprocessor, and described microprocessor is by described bluetooth
Oil level signal is sent to described mobile terminal by module；Meanwhile, the oil level signal that described step (1) produces also sends to institute
State background monitoring main frame；
(3) electric parameters of described mobile terminal display transformer oil level, described background monitoring main frame shows the electric of transformer oil level
Amount.
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Application publication date: 20160810 |