CN106840314B - Oil level indication method and device for gas relay of power system - Google Patents
Oil level indication method and device for gas relay of power system Download PDFInfo
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- CN106840314B CN106840314B CN201710071352.XA CN201710071352A CN106840314B CN 106840314 B CN106840314 B CN 106840314B CN 201710071352 A CN201710071352 A CN 201710071352A CN 106840314 B CN106840314 B CN 106840314B
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- buchholz relay
- marking line
- baffle
- observation window
- oil level
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- 238000000034 method Methods 0.000 title abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 47
- 238000009434 installation Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 19
- 238000012806 monitoring device Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 6
- 235000015927 pasta Nutrition 0.000 description 6
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
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- Housings And Mounting Of Transformers (AREA)
Abstract
The embodiment of the invention discloses an oil level indicating method and device for a gas relay of a power system, which are used for solving the technical problem that whether the gas relay is completely filled with oil or is insufficient in oil is difficult to distinguish due to transparent and colorless transformer oil when a patrol worker checks the oil level through an observation window of the gas relay on the ground at present. The method provided by the embodiment of the invention comprises the following steps: acquiring the size of an observation window and a baffle of the gas relay according to the model of the gas relay, wherein the baffle comprises a rear baffle; calculating the width of a first marking line arranged on an oblique diagonal line of the rear baffle according to the installation height of the gas relay, and calculating the distance between the observation window and the rear baffle; calculating the position of a second marking line arranged on the surface of the observation window; and setting monitoring points below the gas relay according to the position relation of the first marking line and the second marking line, and obtaining the oil level condition of the gas relay through the monitoring points.
Description
Technical field
The present invention relates to electric system Buchholz relay fields more particularly to a kind of electric system Buchholz relay oil level to refer to
Show method and device.
Background technique
Currently, Buchholz relay is essential a kind of protective device in substation, positioned at the conservator and oil of transformer
In pipeline between case, the oil stream and air-flow generated when using transformer internal fault pushes the actuating of relay, divides light gas protecting
It is protected with grave gas, the former is for alerting, and the latter is used for tripping transformer, it plays the safe operation of electric system and equipment
Vital effect.Usual observation window of tour personnel during tour through Buchholz relay checks that oil level is sentenced
Whether disconnected gas content and main transformer operating condition are normal.However transformer oil is clear, colorless, the contact surface of oil and gas
Be not it is obvious that when personnel station in ground observation, be difficult to tell in Buchholz relay whether completely it is oil-filled or it is oily not
Situations such as sufficient；Secondly the transformer oil of long-play is by having certain adsorption capacity, internal contact meeting after thermal oxide
Glue dead phenomenon.When main transformer is operating abnormally or oil seepage causes pasta decline in Buchholz relay, float will not fall, phase
The make and break contact for alarming and tripping answered will not act, and Buchholz relay can lose the protection to transformer, this can give
Tour personnel brings erroneous judgement.
Summary of the invention
The embodiment of the invention provides a kind of electric system Buchholz relay oil level indicating means and device, solve at present
Tour personnel is when oil level is checked by the observation window of Buchholz relay in ground since transformer oil clear, colorless is difficult to differentiate watt
In this relay whether completely oil-filled or shortage of oil the case where the technical issues of.
A kind of electric system Buchholz relay oil level indicating means provided in an embodiment of the present invention, comprising:
The observation window and baffle size of Buchholz relay are obtained according to Buchholz relay model, baffle includes rear baffle；
According to Buchholz relay mounting height calculating and setting in the width of first marking line in rear baffle clinodiagonal,
And calculate observation window between rear baffle at a distance from；
Calculating and setting is in the position of the Article 2 marking line on observation window surface；
Monitoring point is set in the lower section of Buchholz relay according to the positional relationship of first marking line and Article 2 marking line,
And Buchholz relay oil level situation is obtained by monitoring point.
Optionally, the observation window of Buchholz relay is obtained according to Buchholz relay model and baffle size specifically includes:
Length, width and the thickness of Buchholz relay observation window and baffle are obtained according to the model of Buchholz relay；Baffle
Including right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle.
Optionally, according to Buchholz relay mounting height calculating and setting in first marking line in rear baffle clinodiagonal
Width, and calculate observation window between rear baffle at a distance from specifically include:
According to Buchholz relay mounting height and human eye to the resolution capability calculating and setting of light in rear baffle clinodiagonal
First marking line width；
According to transformer oil refractive index and Buchholz relay mounting height calculate observation window between rear baffle at a distance from.
Optionally, calculating and setting is specifically included in the position of the Article 2 marking line on observation window surface:
According to the observation window between rear baffle at a distance from, the position of first marking line calculate observation window surface Article 2 mark
The position of line.
Optionally, it is arranged according to the positional relationship of first marking line and Article 2 marking line in the lower section of Buchholz relay
Monitoring point, and Buchholz relay oil level situation is obtained by monitoring point and is specifically included:
It is taken at below Buchholz relay and is set according to the extended line of first marking line and the line of Article 2 marking line
Set the position of monitoring point, and the monitoring acquisition watt by monitoring point to first marking line and the situation of Article 2 marking line
This relay oil level situation.
A kind of electric system Buchholz relay oil level indicating device provided in an embodiment of the present invention, comprising:
Module is obtained, for obtaining the observation window and baffle size of Buchholz relay, baffle according to Buchholz relay model
Including rear baffle；
First computing module, for according to Buchholz relay mounting height calculating and setting in rear baffle clinodiagonal
The width of one marking line, and calculate observation window between rear baffle at a distance from；
Second computing module, for calculating and setting in the position of the Article 2 marking line on observation window surface；
Setup module, for according to the positional relationship of first marking line and Article 2 marking line under Buchholz relay
Side setting monitoring point, and Buchholz relay oil level situation is obtained by monitoring point.
Optionally, module is obtained to specifically include:
Acquiring unit, for obtaining length, the width of Buchholz relay observation window and baffle according to the model of Buchholz relay
Degree and thickness；Baffle includes right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle.
Optionally, the first computing module specifically includes:
First computing unit, for according to Buchholz relay mounting height and human eye to the resolution capability calculating and setting of light in
The width of first marking line in rear baffle clinodiagonal；
Second computing unit, for calculating observation window with after according to transformer oil refractive index and Buchholz relay mounting height
Distance between baffle.
Optionally, the second computing module specifically includes:
Third computing unit, for window according to the observation between rear baffle at a distance from, the position of first marking line calculates and sees
Examine the position of window surface Article 2 marking line.
Optionally, setup module specifically includes:
Setting unit, for according to the extended line of first marking line and the line of Article 2 marking line be taken at gas after
The position of the lower section setting monitoring point of electric appliance, and by monitoring point to the situation of first marking line and Article 2 marking line
Monitoring obtain Buchholz relay oil level situation.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
The embodiment of the invention provides a kind of electric system Buchholz relay oil level indicating means and devices, comprising: according to
Buchholz relay model obtains the observation window and baffle size of Buchholz relay, and baffle includes rear baffle；According to Buchholz relay
Mounting height calculating and setting calculates between observation window and rear baffle in the width of first marking line in rear baffle clinodiagonal
Distance；Calculating and setting is in the position of the Article 2 marking line on observation window surface；According to first marking line and Article 2 mark
Monitoring point is arranged in the lower section of Buchholz relay in the positional relationship of timberline, and obtains Buchholz relay oil level feelings by monitoring point
Condition, the embodiment of the present invention by the glass window in Buchholz relay are arranged Article 2 marking line and are arranged on rear baffle the
One marking line, so that in the oil level of ground monitoring point observation Buchholz relay by comparing Article 2 marking line and first
The relative position of marking line can determine whether to obtain the oil level situation of Buchholz relay, i.e., when first marking line level height of setting is high
When Article 2 marking line, when Buchholz relay is oil-free, first mark when place is observed is maked an inspection tour specified in tour personnel station
Line and Article 2 marking line are just overlapped；And when Buchholz relay is full of oil, since oil is different from the refractive index of air, make an inspection tour
First marking line that personnel observe can occur to reflect shift phenomenon, and first marking line and Article 2 marking line can not weigh
It closes.It can judge the oil level situation in Buchholz relay rapidly using the difference between both of these case, solve current perambulator
Member is when oil level is checked by the observation window of Buchholz relay in ground since transformer oil clear, colorless is difficult to differentiate gas relay
In device whether completely oil-filled or shortage of oil the case where the technical issues of.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of electric system Buchholz relay oil level indicating means process signal provided in the embodiment of the present invention
Figure；
Fig. 2 is that a kind of band provided in the embodiment of the present invention reflects the flange of comparison expression Buchholz relay oil level indicating device
Disk connects single float Buchholz relay front view；
Fig. 3 is the three-dimensional signal of the rectangular parallelepiped structure device being made of observation window and baffle provided in the embodiment of the present invention
Figure；
Fig. 4 is a kind of monitoring side view provided in the embodiment of the present invention；
Fig. 5 is the tour personnel provided in the embodiment of the present invention or the perspective view that monitoring device is observed from lower left；
Fig. 6 is that tour personnel or monitoring device are observed when being full of oil in the Buchholz relay provided in the embodiment of the present invention
Schematic diagram；
Fig. 7 is that tour personnel or monitoring device are seen when there was only half oil in the Buchholz relay provided in the embodiment of the present invention
The schematic diagram observed；
Fig. 8 is another monitoring side view provided in the embodiment of the present invention；
Fig. 9 is first marking line and the extended schematic diagram of Article 2 marking line provided in the embodiment of the present invention；
Figure 10 is the monitoring side view after first marking line provided in the embodiment of the present invention and the extension of Article 2 marking line
Figure；
Figure 11 is a kind of electric system Buchholz relay oil level indicating device structural representation provided in the embodiment of the present invention
Figure.
Detailed description of the invention: 1 glass window, 2 baffles, 3 first marking lines, 4 Article 2 marking lines, 5 logical oily circular holes, 6 watts
Medium (oil or air) in this relay, 7 rear baffle interfaces, 8 glass window interfaces, eyes/monitoring dress of 9 tour personnels
Camera is set, 10 outside airs, 11 be snap point, and 12 be pasta in Buchholz relay.
Specific embodiment
The embodiment of the invention provides a kind of electric system Buchholz relay oil level indicating means and devices, for solving mesh
Preceding tour personnel is when oil level is checked by the observation window of Buchholz relay in ground since transformer oil clear, colorless is difficult to differentiate
In Buchholz relay whether completely oil-filled or shortage of oil the case where the technical issues of.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field
Those of ordinary skill's all other embodiment obtained without making creative work, belongs to protection of the present invention
Range.
Referring to Fig. 1, a kind of electric system Buchholz relay oil level indicating means provided in an embodiment of the present invention, comprising:
101, the observation window and baffle size of Buchholz relay are obtained according to Buchholz relay model, baffle is kept off after including
Plate；
Firstly, obtaining length, width and the thickness of Buchholz relay observation window and baffle 2 according to Buchholz relay model；
Baffle includes right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle.The gas of observation monitoring oil level is carried out according to needed for
The model and its size of relay select length, width and the thickness of corresponding glass window 1 and baffle 2.Wherein, baffle 2
Including right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle, overhead gage, lower baffle plate, right baffle-plate, right shell body and rear baffle with
The sealing of glass window 1 constitutes rectangular parallelepiped structure, and rear baffle is set to inside Buchholz relay, the glass with Buchholz relay
Observation window 1 is parallel.In addition, overhead gage, lower baffle plate, right baffle-plate and right shell body are provided with logical oily circular hole, for keeping in baffle
The connection in portion and external oil.Overhead gage, lower baffle plate, right baffle-plate and right shell body length are the diameter of glass window 1.Glass observation
Window 1, overhead gage, lower baffle plate, right baffle-plate and right shell body are all made of transparent glass material, are convenient for external observation.As shown in Fig. 2, being
The ring flange of EMB company 02 (AF 25/6) model connects single float Buchholz relay front view.
102, according to Buchholz relay mounting height calculating and setting in first marking line 3 in rear baffle clinodiagonal
Width, and calculate observation window between rear baffle at a distance from；
Obtain after the length of Buchholz relay observation window and baffle, width and thickness, pacified according to Buchholz relay
Dress highly calculates the width for first marking line 3 being set in rear baffle clinodiagonal.In order to facilitate observation of, first marking line
3 are set in rear baffle clinodiagonal, and using the dark color for being easy identification, such as red.
In view of resolution capability of the human eye to light be about 1 jiao point (at 1 meter it can be seen that point be about away from the limit
0.291mm), it can't see together with object of the width lower than 1 jiao point can melt with background.
Calculation method is as follows:
1 degree=2 radians of π/360；
1 jiao point=1/60 degree=0.000291 radian；
At 1 meter it can be seen that smallest point away from (being approximately equal to arc length):
Δ d0=radian * radius=0.000291*1000mm=0.291 (mm)；
So at L meters it can be seen that smallest point away from:
Δ d=L* Δ d0=0.291L (mm)；
If Buchholz relay is highly h meter from the ground, with the angle θ (taking 45 degree) observation Buchholz relay, human eye and gas after
The distance of electric appliance:
L ≈ h/sin θ=√ 2h；
The then minimum widith of first marking line 3:
0.291 (mm)=√ 2h*0.291 (mm) of dmin=L* Δ d0=h/sin θ *=0.412h (mm)；
Retain 20% nargin, the width of first marking line 3 is desirable are as follows:
D0=(1+20%) dmin=1.2*0.412h=0.4944h (mm)；
If h is equal to 8m, is calculated by above formula and know that the width of first marking line 3 is 4mm.
If tour personnel's benefit telescopic observation, it is assumed that the amplification factor of telescope is μ, then Article 2 marking line 3 is most
Excellent width is 4/ μm of m.
Further, since refraction comparison expression Buchholz relay oil level indicating device provided by the invention is to utilize refraction principle,
If distance d2 is smaller between first marking line 3 (i.e. rear baffle) and glass window 1, refraction effect can be unobvious, in Fig. 4
Point S3 and S1 can be overlapped, cannot be distinguished whether Buchholz relay has oil, therefore d2 cannot be too small.In view of Buchholz relay itself
The size of device is much smaller than its height h from the ground, it may be assumed that for the virtual image S2 and S0 in Fig. 3 on same interface, width is equal
For d0, as shown in Figure 8.
To guarantee that virtual image S2 is not overlapped with S0 two o'clock and people can effectively distinguish, the distance between two o'clock d3 be should be greater than
In d0, it may be assumed that
D3=k*d0；
Wherein, k is proportionality coefficient, is more than or equal to 1.In addition the width of pupil of human and baffle is filled much smaller than Buchholz relay
It sets, it may be assumed that the light that S0 is issued retrodeviates the refraction angle i2 from normal through superrefraction and is approximately equal to eye-observation angle, θ, it may be assumed that
I2=θ；
Incidence angle can be obtained by the law of refraction:
I1=sin-1[n*sin(i2)]；
It can be obtained by geometrical relationship in Fig. 8:
In summary formula can obtain:
It can be seen that the refractive index n of the distance between first marking line 3 and glass window 1 d2 and transformer oil, watt
This relay mounting height and proportionality coefficient k are related.If n takes 1.4, θ to take 45 °, k takes 2, and simplification has:
D2=3.509h (mm).
103, calculating and setting is in the position of the Article 2 marking line 4 on observation window surface；
According to the observation window between rear baffle at a distance from, the position of first marking line calculate observation window surface Article 2 mark
The position of line.The light mainly issued using first marking line 3 in the present invention is existing in the interface generation refraction of oil and air
As judging oil level.Therefore the color that first marking line 3 and Article 2 marking line 4 are distinguished using different and easy differentiation,
If first marking line 3 is using red, Article 2 marking line 4 is using blue, to achieve the effect that rapid identification.
Referring to Fig. 3, three-dimensional for the rectangular parallelepiped structure device provided in an embodiment of the present invention being made of observation window and baffle 2
Schematic diagram (with circular glass observation window 1 be positive front).Wherein, Article 2 marking line 4 is fixed on the diagonally opposing corner of glass window 1
On line, first marking line 3 is fixed in the clinodiagonal of rear baffle, to be convenient to it is observed that inside entire Buchholz relay
Oil level situation.
Referring to Fig. 4, being carried out below for several situations for being greater than the first horizontal line in the second horizontal line level height detailed
Description.
Situation 1:6 is medium (air) in Buchholz relay, i.e. Buchholz relay observation window region is oil-free, the light that S0 is issued
Line is directly entered human eye, and the intersection point of the straight line and glass window 1 of human eye and S0 composition is S1, and all S0 form first mark
Timberline 3, all S1 are the Article 2 marking line 4 for forming the setting of 1 surface of glass window.When observation window is oil-free, personnel are referring to
Surely observation place can only see the Article 2 marking line 4 of blue, and first marking line 3 of the inside red is by the Article 2 mark of blue
Timberline 4 blocks, and the perspective view that tour personnel or monitoring device are observed is shown in Fig. 5.
Situation 2:6 is medium (oil) in Buchholz relay, i.e., Buchholz relay observation window region is full of oil, the light of S0 sending
When entering air from oil refraction can occur for line and (since glass is relatively thin, the shadow of thickness of glass birefringence can be ignored in off-normal
It rings).There is the refractive index of transformer oil by the law of refraction:
The refractive index of oil is greater than 1, then refraction angle i2 is greater than incidence angle i1.Fringence meeting downward bias, reverse extending line are handed over
Point S2 is the virtual image of S0, and the virtual image S2 that human eye or monitoring device are seen closer looks at window compared with origin S0.Human eye with as S2 two o'clock
Between straight line and the intersection point of glass window 1 be S3, as shown in Figure 4, S3 is in the upper surface of S1, so filling in the Buchholz relay
When full oil, tour personnel can be appreciated that blue and red two oblique lines, as shown in Figure 6.First red marking line 3 is in indigo plant in figure
The top of the Article 2 marking line 4 of color.
Situation 3: pasta is located in Buchholz relay observation window, and the light that first marking line 3 of ullage issues is straight
It taps into human eye, and the light that marking line issues below pasta enters human eye after oil is reflected to air.As shown in fig. 7,
Tour personnel can be appreciated that first red marking line 3 of top is overlapped with the Article 2 marking line 4 of blue, the first of lower section red
Marking line 3 can be offset up, and the place to fracture is snap point 11, as oil surface level, and 12 be Buchholz relay in Fig. 7
Interior pasta.Due to that can be become apparent from compared with first two situation when breakage phenomenon occurs, so comparing appearance when few oil in Buchholz relay
Easily observe.
104, prison is arranged in the lower section of Buchholz relay according to the positional relationship of first marking line and Article 2 marking line
Measuring point, and Buchholz relay oil level situation is obtained by monitoring point；
Due to, Buchholz relay mounting height is usually higher, and it generally requires tour personnel and carries out manual patrol observation, or
Be arranged monitoring point, and monitoring point place have camera the inspection device that can move freely, can make an inspection tour in time gas after
Electric appliance oil level situation, and upload to monitoring center in time and be monitored.
Due to the difference between tour personnel's height, the height on human eye and ground is different, when determining first mark with the angle θ
After positional relationship between timberline 3 and Article 2 marking line 4, first mark that people of different heights observes in same place at station
Positional relationship between timberline 3 and Article 2 marking line 4 can be different.In order to adapt to the observation demand of different personnel, by
One marking line 3 and Article 2 marking line 4 extend, as shown in Figure 9.Tour personnel only need to be in the level immediately below Buchholz relay
It is moved forward and backward on line i.e. and can determine that oil level observes place.As shown in Figure 10, when human eye apart from ground level be h2 (be greater than h1) when,
People just moves forward the S1 observed after certain distance and S0 facing towards Buchholz relay and can observe at this time on the same line
Two extension oblique lines can be overlapped, then the tour personnel institute station location is the correct observation place of Buchholz relay oil level.
In summary analysis knows that tour personnel is first according to the prolongation of first marking line 3 and Article 2 marking line 4
Determine correct observation place, then the position of two reference lines is the oil level that can determine whether in Buchholz relay in paired observation window.
Show the serious oil starvation of Buchholz relay when only seeing the Article 2 marking line 4 of blue；Show when seeing two parallel lines watt
Oil is sufficient in this relay；Show that pasta is in observation window when breakage phenomenon occurs for first marking line 3 seen.Due to
Transformer oil is filled with entire Buchholz relay under normal circumstances, so when only seeing an Article 2 marking line 4 or the first
When marking line 3 fractures, illustrates that main transformer is operating abnormally, corresponding measure need to be taken immediately.
When being detected using monitoring device, the filmed image that monitoring personnel can send according to monitoring device, to monitoring
Setting position is adjusted, and specific method of adjustment is similar to the above, and details are not described herein again.
The above are retouching in detail to a kind of electric system Buchholz relay oil level indicating means provided in an embodiment of the present invention
It states, detailed to a kind of electric system Buchholz relay oil level indicating device progress provided in an embodiment of the present invention will retouch below
It states.
Please refer to Figure 11, a kind of electric system Buchholz relay oil level indicating device provided in an embodiment of the present invention includes:
Module 201 is obtained, for obtaining the observation window and baffle size of Buchholz relay, gear according to Buchholz relay model
Plate includes rear baffle, and it is specific to obtain module 201 further include:
Acquiring unit 2011, for obtaining the length of Buchholz relay observation window and baffle according to the model of Buchholz relay
Degree, width and thickness；Baffle includes right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle.
First computing module 202 is used for according to Buchholz relay mounting height calculating and setting in rear baffle clinodiagonal
First marking line width, and calculate observation window between rear baffle at a distance from, the first computing module 202 is specific further include:
First computing unit 2021, for being set according to Buchholz relay mounting height and human eye to the resolution capability calculating of light
It is placed in the width of first marking line in rear baffle clinodiagonal；
Second computing unit 2022, for calculating observation window according to transformer oil refractive index and Buchholz relay mounting height
At a distance between rear baffle.
Second computing module 203, for calculating and setting in the position of the Article 2 marking line on observation window surface, the second meter
It is specific to calculate module 203 further include:
Third computing unit 2031, at a distance from window according to the observation is between rear baffle, based on the position of first marking line
Calculate the position of observation window surface Article 2 marking line.
Setup module 204, for according to the positional relationship of first marking line and Article 2 marking line in Buchholz relay
Lower section be arranged monitoring point, and by monitoring point obtain Buchholz relay oil level situation, setup module 204 specifically further include:
Setting unit 2041, for being taken at watt according to the extended line of first marking line and the line of Article 2 marking line
The position of the lower section setting monitoring point of this relay, and by monitoring point to the position of first marking line and Article 2 marking line
The monitoring of situation obtains Buchholz relay oil level situation.
The embodiment of the invention provides a kind of electric system Buchholz relay oil level indicating means and devices, comprising: according to
Buchholz relay model obtains the observation window and baffle size of Buchholz relay, and baffle includes rear baffle；According to Buchholz relay
Mounting height calculating and setting calculates between observation window and rear baffle in the width of first marking line in rear baffle clinodiagonal
Distance；Calculating and setting is in the position of the Article 2 marking line on observation window surface；According to first marking line and Article 2 mark
Monitoring point is arranged in the lower section of Buchholz relay in the positional relationship of timberline, and obtains Buchholz relay oil level feelings by monitoring point
Condition, the embodiment of the present invention by the glass window in Buchholz relay are arranged Article 2 marking line and are arranged on rear baffle the
One marking line, so that in the oil level of ground monitoring point observation Buchholz relay by comparing Article 2 marking line and first
The relative position of marking line can determine whether to obtain the oil level situation of Buchholz relay, i.e., when first marking line level height of setting is high
When Article 2 marking line, when Buchholz relay is oil-free, first mark when place is observed is maked an inspection tour specified in tour personnel station
Line and Article 2 marking line are just overlapped；And when Buchholz relay is full of oil, since oil is different from the refractive index of air, make an inspection tour
First marking line that personnel observe can occur to reflect shift phenomenon, and first marking line and Article 2 marking line can not weigh
It closes.It can judge the oil level situation in Buchholz relay rapidly using the difference between both of these case, solve current perambulator
Member is when oil level is checked by the observation window of Buchholz relay in ground since transformer oil clear, colorless is difficult to differentiate gas relay
In device whether completely oil-filled or shortage of oil the case where the technical issues of.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of electric system Buchholz relay oil level indicating means characterized by comprising
The observation window and baffle size of Buchholz relay are obtained according to Buchholz relay model, the baffle includes rear baffle；
According to the Buchholz relay mounting height calculating and setting in first marking line in the rear baffle clinodiagonal
Width, and calculate the observation window between the rear baffle at a distance from；
Calculating and setting is in the position of the Article 2 marking line on the observation window surface；
It is set below the Buchholz relay according to the positional relationship of first marking line and the Article 2 marking line
Monitoring point is set, and Buchholz relay oil level situation is obtained by the monitoring point.
2. electric system Buchholz relay oil level indicating means according to claim 1, which is characterized in that the basis watt
This relay model obtains the observation window of Buchholz relay and baffle size specifically includes:
Length, width and the thickness of Buchholz relay observation window and baffle are obtained according to the model of Buchholz relay；The baffle
Including right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle.
3. electric system Buchholz relay oil level indicating means according to claim 1, which is characterized in that described according to institute
Buchholz relay mounting height calculating and setting is stated in the width of first marking line in the rear baffle clinodiagonal, and is calculated
The observation window between the rear baffle at a distance from specifically include:
According to the Buchholz relay mounting height and human eye to the resolution capability calculating and setting of light in rear baffle clinodiagonal
First marking line width；
It is calculated between the observation window and the rear baffle according to transformer oil refractive index and the Buchholz relay mounting height
Distance.
4. electric system Buchholz relay oil level indicating means according to claim 1, which is characterized in that the calculating is set
The position for the Article 2 marking line being placed on the observation window surface specifically includes:
According to the observation window between the rear baffle at a distance from, the position of first marking line calculate observation window surface Article 2 mark
The position of line.
5. electric system Buchholz relay oil level indicating means according to claim 1, which is characterized in that described according to institute
Monitoring point is arranged in the lower section of the Buchholz relay in the positional relationship for stating first marking line and the Article 2 marking line, and
Buchholz relay oil level situation is obtained by the monitoring point to specifically include:
The Buchholz relay is taken at according to the extended line of first marking line and the line of the Article 2 marking line
Lower section setting monitoring point position, and by the monitoring point to first marking line and the Article 2 marking line
The monitoring of situation obtains Buchholz relay oil level situation.
6. a kind of electric system Buchholz relay oil level indicating device characterized by comprising
Module is obtained, for obtaining the observation window and baffle size of Buchholz relay, the baffle according to Buchholz relay model
Including rear baffle；
First computing module is used for according to the Buchholz relay mounting height calculating and setting in the rear baffle clinodiagonal
First marking line width, and calculate the observation window between the rear baffle at a distance from；
Second computing module, for calculating and setting in the position of the Article 2 marking line on the observation window surface；
Setup module, for according to the positional relationship of first marking line and the Article 2 marking line in the gas after
Monitoring point is arranged in the lower section of electric appliance, and obtains Buchholz relay oil level situation by the monitoring point.
7. electric system Buchholz relay oil level indicating device according to claim 6, which is characterized in that the acquisition mould
Block specifically includes:
Acquiring unit, for obtained according to the model of Buchholz relay the length of Buchholz relay observation window and baffle, width and
Thickness；The baffle includes right baffle-plate, right shell body, overhead gage, lower baffle plate and rear baffle.
8. electric system Buchholz relay oil level indicating device according to claim 6, which is characterized in that first meter
Module is calculated to specifically include:
First computing unit, for according to the Buchholz relay mounting height and human eye to the resolution capability calculating and setting of light in
The width of first marking line in rear baffle clinodiagonal；
Second computing unit, for calculating the observation window according to transformer oil refractive index and the Buchholz relay mounting height
At a distance between the rear baffle.
9. electric system Buchholz relay oil level indicating device according to claim 6, which is characterized in that second meter
Module is calculated to specifically include:
Third computing unit, for window according to the observation between the rear baffle at a distance from, the position of first marking line calculates and sees
Examine the position of window surface Article 2 marking line.
10. electric system Buchholz relay oil level indicating device according to claim 6, which is characterized in that the setting
Module specifically includes:
Setting unit, for being taken at institute according to the extended line of first marking line and the line of the Article 2 marking line
The position of the lower section setting monitoring point of Buchholz relay is stated, and by the monitoring point to first article of marking line and described the
The monitoring of the situation of two marking lines obtains Buchholz relay oil level situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071352.XA CN106840314B (en) | 2017-02-09 | 2017-02-09 | Oil level indication method and device for gas relay of power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710071352.XA CN106840314B (en) | 2017-02-09 | 2017-02-09 | Oil level indication method and device for gas relay of power system |
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| Publication Number | Publication Date |
|---|---|
| CN106840314A CN106840314A (en) | 2017-06-13 |
| CN106840314B true CN106840314B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710071352.XA Active CN106840314B (en) | 2017-02-09 | 2017-02-09 | Oil level indication method and device for gas relay of power system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966653B (en) * | 2017-10-17 | 2020-09-04 | 国网山东省电力公司青岛供电公司 | Gas relay monitoring device |
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| WO2006128265A1 (en) * | 2005-06-01 | 2006-12-07 | Junko Hiraoka | Electronic gas relay |
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| CN203551043U (en) * | 2013-10-31 | 2014-04-16 | 山东泰开变压器有限公司 | Oil level indicating device for transformer oil conservator |
| CN104019868A (en) * | 2014-06-03 | 2014-09-03 | 国家电网公司 | Oil level monitoring and warning device for oil conservator special for transformer |
| CN204904973U (en) * | 2015-09-06 | 2015-12-23 | 河北宝利输变电设备制造有限公司 | Oil -immersed transformer |
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|---|---|---|---|---|
| WO2006128265A1 (en) * | 2005-06-01 | 2006-12-07 | Junko Hiraoka | Electronic gas relay |
| CN102494737A (en) * | 2011-12-06 | 2012-06-13 | 余姚市供电局 | Oil level monitoring method and system of oil immersed type transformer |
| CN103500682A (en) * | 2013-09-28 | 2014-01-08 | 国家电网公司 | Transformer body gas relay with existing gas detection function |
| CN203551043U (en) * | 2013-10-31 | 2014-04-16 | 山东泰开变压器有限公司 | Oil level indicating device for transformer oil conservator |
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|---|---|
| CN106840314A (en) | 2017-06-13 |
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