CN110045093A - A kind of transformer oil degradation detection and its device - Google Patents
A kind of transformer oil degradation detection and its device Download PDFInfo
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- CN110045093A CN110045093A CN201910425779.4A CN201910425779A CN110045093A CN 110045093 A CN110045093 A CN 110045093A CN 201910425779 A CN201910425779 A CN 201910425779A CN 110045093 A CN110045093 A CN 110045093A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
Abstract
This application involves transformer oil to test and analyze technical field more particularly to a kind of transformer oil degradation detection and its device.The application devises a kind of transformer oil degradation detection, acquire the transformer oil sample of running transformer, obtain the moisture of transformer oil sample, dissolved gas, antioxidant, the achievement data of acid value and oxygen element content, according to the moisture of existing standard, dissolved gas, the index value of antioxidant and acid value is as limit value, and then the oxygen element content of transformer water content in oil is calculated, the oxygen element content of dissolved gas, the corresponding scoring of the oxygen element content of the oxygen element content and oleic acid of antioxidant, to by judging whether corresponding scoring is all larger than 0, and obtain transformer oil degradation, provide the processing guidance of transformer oil.
Description
Technical field
This application involves transformer oil test and analyze technical field more particularly to a kind of transformer oil degradation detection and
Its device.
Background technique
Transformer oil is by a kind of mineral oil of distillation, refining and acquisition in natural oil, is the lubricating oil in petroleum
Fraction handles to obtain the good liquid native hydrocarbon of small pure stabilization, viscosity, good insulating, cooling through acid-alkali refining
Mixture, its main component are alkane, naphthene series's saturated hydrocarbons, the compounds such as aromatic series unsaturated hydrocarbons.
Transformer oil has excellent electric property and stability, is widely applied dielectric, plays insulation, heat dissipation
Cooling, protection and information carrier effect.Under the influence of the factor in the long-term operation of transformer or the person external world, transformer oil meeting
It deteriorates, for the anti-oxidation characteristics of reinforced insulation oil, generally can add antioxidant into insulating oil and delay to insulate with this
The oxidation of oil.Antioxidant can gradually use up in power equipment operational process, therefore monitor the content of antioxidant, to holding
The superperformance of insulating oil has important guarantee.
However even if being added to antioxidant, transformer oil still will be slow deterioration, generate alcohol, aldehyde, ketone, acid, ester and oil
Mud etc. deteriorates product.There is important meaning to the operation and maintenance of transformer oil for the evaluation of the hot oxygen deterioration of transformer oil.It cuts
It is only currently, domestic still without a kind of method that can accurately, directly quantify to detect transformer oil deterioration.
Summary of the invention
Detection method provided by the present application can accurately, directly quantify the degradation for detecting transformer oil.
In view of this, a kind of transformer oil degradation detection of the application, comprising the following steps:
Step 1 samples the transformer oil sample of running transformer；
Step 2, the dissolved gas of the content A1 of moisture for obtaining the transformer oil sample, the transformer oil sample
Content, the transformer oil sample antioxidant quality m1 and the transformer oil sample acid value m2；
Step 3, according to the moisture limit value A2 of the transformer oil before operation, the moisture limit value A3 of running transformer oil and
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of the transformer oil sample；
According to the dissolved gas limit value B4 of the transformer oil before operation, the dissolved gas limit value B5 of running transformer oil
The scoring S2 of the dissolved gas of transformer oil sample is calculated with the content of the dissolved gas of the transformer oil sample；
According to the quality limit value C1 of the antioxidant of the transformer oil before operation, the antioxidant of running transformer oil
Quality limit value C2 and the content m1 of antioxidant of the transformer oil sample the anti-oxidant of transformer oil sample is calculated
The scoring S3 of agent；
According to the acid value limit value D1 of the transformer oil before operation, the acid value limit value D2 of running transformer oil and the change
The scoring S4 of the acid value of transformer oil sample is calculated in the acid value m2 of depressor oil samples；
Step 4, judge the transformer oil sample moisture scoring S1, the transformer oil sample dissolved gas scoring
S2, the antioxidant scoring S3 of the transformer oil sample and the transformer oil sample judge whether point S4 is all larger than 0, if so,
It is not completely deteriorated as a result, if it is not, then exporting the result that the transformer oil has deteriorated then to export the transformer oil.
It should be noted that the unit of the content A1 of the moisture of the transformer oil sample is mg/L；The dissolved gas
The gas content containing oxygen element is refered in particular to, the unit of the content of the dissolved gas is μ L/L.
Preferably, further including the total oxygen element content m3 for obtaining the transformer oil sample before the step 4, calculating
The oxygen element of the dissolved gas of the content W of the oxygen element of the moisture of the transformer oil sample, the transformer oil sample contains
Measure X, the content Y of oxygen element of the antioxidant of the transformer oil sample, the transformer oil sample oleic acid oxygen element
Content Z and the transformer oil sample oxidation generate substance oxygen element content m4, and according to the change before operation
The oxidation of the oxygen element limit value E1, running transformer oil of the oxidation generation substance of depressor oil generate the flat of the oxygen element of substance
The oxidation of mean value E2 and the transformer oil sample generates the oxygen that transformer oil sample is calculated containing m4 of the oxygen element of substance
Change and generates substance scoring S5.
It should be noted that the content W of the oxygen element of the moisture of the transformer oil sample, wherein the calculation formula of W
Are as follows:16 be H in formula2The relative molecular mass of the O of O is 16, H2The relative molecular mass of O is
18, A1 be the data for measuring machine, and A1 unit is mg/L, and oily specific gravity value is 0.88Kg, can also be carried out according to different fresh oils
Adjustment.
It should be noted that the content Y of the oxygen element of the antioxidant of the transformer oil sample, wherein the calculating of Y is public
Formula are as follows:Wherein, the unit of m1 is %.
It should be noted that the content Z of the oxygen element of the oleic acid of the transformer oil sample, wherein the calculation formula of Z
Are as follows: 0.057*m2, the measuring unit of acid value m2: the mole of mgKOH/g, KOH are 57, so acid value (take carboxyl, 32)
Oxygen content be (32*10-3*m2)/56。
Wherein, it is provided according to the index value that GB/T 7595 " transformer oil quality standard in operation " is listed, running change
The quality limit value C2 of the antioxidant of depressor oil is 0.6*C1, the quality limit value C1 of the antioxidant of the transformer oil before operation.
Preferably, the transformer oil degradation detection, the step 4 includes step 5 later, step 5 packet
It includes: judging the moisture scoring S1 of the transformer oil sample, dissolved gas the scoring S2, the transformation of the transformer oil sample
The scoring S4 and the transformer oil sample of the acid value of the antioxidant scoring S3 and transformer oil sample of device oil samples
Oxidation generates whether substance scoring S5 is all larger than 0, if so, it is not completely deteriorated as a result, and carrying out step 7 to export the transformer oil
Calculating, if it is not, then exporting the result that the transformer oil has deteriorated.
Preferably, including step 6 after the step 5, the step 6 includes: the water to the transformer oil sample
Point scoring S1, the transformer oil sample dissolved gas scoring S2, the transformer oil sample antioxidant scoring S3 and
The oxidation of the scoring S4 and the transformer oil sample of the acid value of the transformer oil sample generate substance scoring S5 and are asked
It scores with transformer oil deterioration is obtained.
Preferably, the transformer oil degradation detection, further includes scoring with the moisture of the transformer oil sample
The corresponding weight of S1, weight corresponding with the dissolved gas of transformer oil sample scoring S2 and the transformer oil sample
The corresponding weight of antioxidant scoring S3, weight corresponding with the scoring S4 of acid value of the transformer oil sample and with it is described
The oxidation of transformer oil sample generates the corresponding weight of substance scoring S5；
The numerical value that each scoring is calculated is carried out according to each weight and each scoring, and to each scoring
Numerical value sum to obtain the final scoring of transformer oil deterioration.
S1=100* (A3-A1)/(A3-A2) preferably, the moisture of the transformer oil sample scores；The transformer
The antioxidant of oil samples scores S3=100* [(m1/C1) -0.6]/0.4；The scoring S4 of the acid value of the transformer oil sample
=100* (D2-m2)/(D2-D1).
It should be noted that being provided according to the index value that GB/T 7595 " transformer oil quality standard in operation " is listed, fortune
The quality of antioxidant in row needs 60% of the quality for the antioxidant before operation, therefore, the transformer oil sample
Antioxidant score S3=100* [(m1/C1) -0.6]/0.4, wherein the quality of the antioxidant of the transformer oil before operation
Limit value C1, running transformer oil antioxidant quality limit value C2.
Preferably, the dissolved gas includes CO, CO2And O2, the content of the CO is B1, the CO2Content be
B2, the O2Content be B3.
It should be noted that the content X of the oxygen element of the dissolved gas of the transformer oil sample, wherein the calculating of X is public
Formula are as follows:The content X of the oxygen element of dissolved gas is (16*B1+32*B2+32*B3) g/
mol*10-6L/[(22.4mol/L)*0.86kg]。
S2=100* (G1- (B1+B2+5*B3))/(G1- preferably, dissolved gas of the transformer oil sample scores
B4), wherein G1 is the air content of the transformer oil sample, and B4 is the dissolved gas limit value of the transformer oil before operation.
It should be noted that according to the dissolved gas limit value B4 of the transformer oil before operation, running transformer oil
The solution gas of transformer oil sample is calculated in the content of the dissolved gas of dissolved gas limit value B5 and the transformer oil sample
The scoring S2 of body, the dissolved gas limit value B5 of running transformer oil are the air content G1 of the transformer oil sample, institute
The content for stating the dissolved gas of transformer oil sample is (B1+B2+5*B3), according to the national standard of GB/T 7595, by 330-
500kV come calculate B4 be 1%, G1 3%, i.e. G1-B4 be 2%, due to CO, CO2And O2Unit be μ L/L；According to unit conversion,
The dissolved gas of the transformer oil sample scores
S2=100* { 3- [(B1+B2+5*B3)/10000] }/2.
Preferably, the oxidation of the transformer oil sample generates substance scoring S5=100* (3.3%-m4)/(3.3%-
0.7%), wherein m4=m3-W-X-Y-Z, m3 are total oxygen element content of transformer oil sample, are measured value.
It should be noted that being averaged operation data with certain power grid, the oxidation of the transformer oil sample before operation generates substance
Limit value be 0.7%, running transformer oil sample oxidation generate substance limit value be 3.3%.
Specifically, calculating S1's according to 100 if the numerical value of the moisture scoring S1 of the transformer oil sample is greater than 100
Numerical value calculates the numerical value of S2-S5 in this approach.
The present invention also provides a kind of transformer oil deterioration detecting apparatus, comprising:
Sampling apparatus is sampled for the transformer oil sample to running transformer；
Detection device, the content A1 of the moisture for obtaining the transformer oil sample, the transformer oil sample it is molten
Solve the content of gas, the antioxidant m1 of the transformer oil sample, the acid value m2 of the transformer oil sample and the change
Total oxygen element content m3 of depressor oil samples；
Computing device, the moisture for moisture limit value A2, running transformer oil according to the transformer oil before operation
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of limit value A3 and the transformer oil sample；
According to the dissolved gas limit value B4 of the transformer oil before operation, the dissolved gas limit value B5 of running transformer oil
The dissolved gas scoring S2 of transformer oil sample is calculated with the content of the dissolved gas of the transformer oil sample；
According to the quality limit value of the antioxidant of the transformer oil before operation, the antioxidant of running transformer oil
The Mass Calculation of the antioxidant of quality limit value and the transformer oil sample obtains the antioxidant scoring of transformer oil sample
S3；
According to the acid value limit value of the transformer oil before operation, the acid value limit value and the transformer of running transformer oil
The scoring S4 of the acid value of transformer oil sample is calculated in the acid value of oil samples；
As a result output device, for judging that the moisture of the transformer oil sample scores S1, the transformer oil sample
The scoring of the acid value of dissolved gas scoring S2, the antioxidant scoring S3 of the transformer oil sample and the transformer oil sample
Whether S4 is all larger than 0, if so, exporting, the transformer oil is not completely deteriorated as a result, if it is not, then to export the transformer oil bad
The result of change.
As can be seen from the above technical solutions, the application has the following advantages:
In the embodiment of the present application, provides a kind of transformer oil degradation detection and its device, the application devise one
Kind transformer oil degradation detection, acquires the transformer oil sample of running transformer, obtains the water of transformer oil sample
Divide, the achievement data of dissolved gas, antioxidant and acid value, according to the moisture of existing standard, dissolved gas, antioxidant and acid
The index value of value as limit value, and then the oxygen element content of transformer water content in oil is calculated, the oxygen element of dissolved gas contains
The corresponding scoring of the oxygen element content of amount, the oxygen element content of antioxidant and oleic acid, to be by the corresponding scoring of judgement
It is no to be all larger than 0, and obtain transformer oil degradation, provide the processing guidance of transformer oil.
A kind of transformer oil degradation detection has also been devised in the application, acquires the transformer oil sample of running transformer
Product obtain the achievement data of the moisture of transformer oil sample, dissolved gas, antioxidant and acid value, transformer oil are calculated
The oxygen element content of middle moisture, the oxygen element content of dissolved gas, the oxygen element content of antioxidant and oleic acid oxygen element contain
Amount, then, moisture, dissolved gas, antioxidant and the acid listed according to GB/T 7595 " transformer oil quality standard in operation "
The index value of value calculates the oxygen element content of running transformer water content in oil, the oxygen member of dissolved gas as limit value
The oxygen element content of cellulose content, the oxygen element content of antioxidant and the oleic acid limit value of transformer oil and operation in corresponding operation
The oxygen element content of transformer water content in oil, dissolved gas is finally calculated in the variation degree of the limit value of preceding transformer oil
The corresponding scoring of the oxygen element content of oxygen element content, the oxygen element content of antioxidant and oleic acid, to pass through judgement pair
It should score and whether be all larger than 0, and obtain transformer oil degradation, provide the processing guidance of transformer oil.
Detailed description of the invention
Fig. 1 is the flow chart of transformer oil degradation detection in the embodiment of the present application；
Fig. 2 is the structure chart of transformer oil deterioration detecting apparatus in the embodiment of the present application.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the embodiment of the present application, it is clear that described
Embodiment be the embodiment of the present application a part of the embodiment, instead of all the embodiments.Based on the reality in the embodiment of the present application
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the range of the embodiment of the present application protection.
In the description of the embodiment of the present application, it should be noted that term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description the embodiment of the present application and simplifies description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the embodiment of the present application.In addition,
Term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the embodiment of the present application, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the embodiment of the present application.
It should be understood that the application is applied to the detection environment of transformer oil degradation, referring to Fig. 1, Fig. 1 is that the application is real
Apply the flow chart of transformer oil degradation detection in example, as shown in Figure 1, in Fig. 1 the following steps are included:
Step 1 samples the transformer oil sample of running transformer；The transformer oil sample of the application is adopted
Quadrat method is existing conventional method, and for example, standard GB/T/T 7597, the application do not make the restriction of the specific method of sampling；
Step 2, becomes the content of the dissolved gas of the content A1 of the moisture of acquisition transformer oil sample, transformer oil sample
The antioxidant m1 of the depressor oil samples and acid value m2 of transformer oil sample；The moisture of the application acquisition transformer oil sample
Content A1 method be existing conventional method, can for coulometry well known to those skilled in the art (GB/T 7600) it is gentle
Phase chromatography (GB/T 7601), it is not specifically limited to this by the application；The present invention obtains the dissolved gas of transformer oil sample
The method of content is existing conventional method, can be GB/T 17623 well known to those skilled in the art, IEC 60567, ASTM
The measuring methods such as D3612, DL/T 703 and DL/T 423, it is not specifically limited to this by the present invention；The application obtains transformer oil
The method of the antioxidant m1 of sample is existing conventional method, can be spectrophotometry well known to those skilled in the art
(GB/T 7602.1), liquid chromatography (GB/T7602.1) or infra-red sepectrometry (GB/T 7602.1), the present invention does not have this
It is specifically limited；The method that the present invention obtains the acid value m2 of transformer oil sample is existing conventional method, can be art technology
BTB method (GB/T 28552), potentiometric titration (SH/T 0836) known to personnel, it is not specifically limited to this by the present invention；
Step 3, according to the moisture limit value A2 of the transformer oil before operation, the moisture limit value A3 of running transformer oil and
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of the transformer oil sample；
According to the dissolved gas limit value B4 of the transformer oil before operation, the dissolved gas limit value B5 of running transformer oil
The dissolved gas scoring S2 of transformer oil sample is calculated with the content of the dissolved gas of transformer oil sample；
According to the quality limit value C1 of the antioxidant of the transformer oil before operation, the antioxidant of running transformer oil
Quality limit value C2 and transformer oil sample antioxidant Mass Calculation obtain transformer oil sample antioxidant scoring
S3；
According to the acid value limit value D1 of the transformer oil before operation, the acid value limit value D2 and transformer of running transformer oil
The scoring S4 of the acid value of transformer oil sample is calculated in the acid value of oil samples；
The embodiment of the present application is using the quality requirement of operation front and back transformer oil, and quality requirement is using GB/T7595 " operation
Middle transformer oil quality standard " moisture, dissolved gas, antioxidant and the acid value index value listed as corresponding limit value, into
The scoring of each index of line transformer oil, to carry out oxygen deterioration evaluation to transformer oil；
Step 4, judge transformer oil sample moisture scoring S1, transformer oil sample dissolved gas scoring S2, transformation
Whether the scoring S4 of the acid value of the antioxidant scoring S3 and transformer oil sample of device oil samples is all larger than 0, if so, output becomes
Depressor oil is not completely deteriorated as a result, if it is not, then exporting the result that transformer oil has deteriorated.
In the embodiment of the present application, provides a kind of transformer oil degradation detection and its device, the application devise one
Kind transformer oil degradation detection, acquires the transformer oil sample of running transformer, obtains the water of transformer oil sample
Divide, the achievement data of dissolved gas, antioxidant and acid value, according to the moisture of existing standard, dissolved gas, antioxidant and acid
The index value of value as limit value, and then the oxygen element content of transformer water content in oil is calculated, the oxygen element of dissolved gas contains
The corresponding scoring of the oxygen element content of amount, the oxygen element content of antioxidant and oleic acid, to be by the corresponding scoring of judgement
It is no to be all larger than 0, and obtain transformer oil degradation, provide the processing guidance of transformer oil.
Further, in order to enable detection method is more accurate, the degradation detection of the embodiment of the present application will also include:
Step 1 samples the transformer oil sample of running transformer；Step 2, the moisture for obtaining transformer oil sample contain
Measure A1, the content of the dissolved gas of transformer oil sample, the antioxidant m1 of transformer oil sample and transformer oil sample
Acid value m2 further includes the total oxygen element content m3 for obtaining transformer oil sample；
In this application, the JY/T017-1996 element point that the measurement of total oxygen element content m3 of transformer oil sample uses
Analyzer (existing equipment) is mainly by filling the oxidation tube of oxidant and filling with the reduction tube and heating furnace of reducing agent, separation and detection
Oxidation (or cracking)-reduzate CO2、H2O、N2And SO2Or it is the separation and detection system of CO, processor or microcomputer workstation, micro-
Measure the components such as the gentle printer in autoelectrinic day composition.The present invention being capable of Accurate Determining using JY/T017-1996 elemental analyser
Total oxygen element content of transformer oil sample out controls 0.55 total oxygen element content accuracy of analysis of transformer oil sample
×102Within wt%.In this application, the specific testing standard of elemental microanalysis method is according to the elemental analyser side JY/T017-1996
Method general rule carries out, and it is not specifically limited to this by the present invention.
In the present invention, the temperature program of the elemental microanalysis method is preferred specifically:
The control of first time temperature is carried out at 900 DEG C~1200 DEG C, keeps 0.5min~1.5min；
Second of temperature control is carried out at 500 DEG C~650 DEG C, keeps 2min~5min；
The control of third time temperature is carried out at 90 DEG C~110 DEG C, keeps 8min~20min；
More preferably:
The control of first time temperature is carried out at 1000 DEG C~1100 DEG C, keeps 0.5min~1.5min；
Second of temperature control is carried out at 550 DEG C~600 DEG C, keeps 2min~5min；
The control of third time temperature is carried out at 95 DEG C~105 DEG C, keeps 8min~20min；
Yet more preferably:
The control of first time temperature is carried out at 1000 DEG C~1100 DEG C, keeps 0.8min~1.2min；
Second of temperature control is carried out at 550 DEG C~600 DEG C, keeps 3min~4min；
The control of third time temperature is carried out at 95 DEG C~105 DEG C, keeps 10min~15min.
In the present invention, the carrier gas of the elemental microanalysis method is preferably helium or argon gas, more preferably helium；The carrier gas
Purity preferably >=99.99%, moisture preferably≤10-6g/L.
Step 3, according to the moisture limit value A2 of the transformer oil before operation, the moisture limit value A3 of running transformer oil and
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of transformer oil sample；According to the transformer before operation
The dissolved gas of the dissolved gas limit value B4 of oil, the dissolved gas limit value B5 of running transformer oil and transformer oil sample
The dissolved gas scoring S2 of transformer oil sample is calculated in content；According to the quality of the antioxidant of the transformer oil before operation
Limit value C1, running transformer oil antioxidant quality limit value C2 and transformer oil sample antioxidant quality m1
The antioxidant scoring S3 of transformer oil sample is calculated；According in the acid value limit value D1 of the transformer oil before operation, operation
The acid value limit value D2 of transformer oil and the acid value m2 of the transformer oil sample acid value of transformer oil sample is calculated
Score S4；
Further include: the content of the oxygen element of the moisture of calculating transformer oil samples, the dissolved gas of transformer oil sample
The oxygen of the oleic acid of the content of oxygen element, the content of the oxygen element of the antioxidant of transformer oil sample and transformer oil sample
The content of element；It further include the content m4 that the oxidation of calculating transformer oil samples generates the oxygen element of substance；It further include according to fortune
The oxidation of transformer oil before row generates the oxygen for aoxidizing generation substance of the oxygen element limit value E1 of substance, running transformer oil
Transformer oil sample is calculated in the content m4 for the oxygen element that the oxidation of the average value E2 and transformer oil sample of element generate substance
The oxidation of product generates substance scoring S5；
The oxygen element of step 4, the dissolved gas of the moisture scoring S1 for judging transformer oil sample, transformer oil sample is commented
Point S2, transformer oil sample antioxidant oxygen element scoring S3 and transformer oil sample acid value scoring S4 it is whether equal
Greater than 0, if so, it is not completely deteriorated as a result, if it is not, then exporting the knot that the transformer oil has deteriorated to export the transformer oil
Fruit；
It further include step 6 after step 5, step 6 includes: moisture the scoring S1, transformer oil for judging transformer oil sample
Sample dissolved gas scoring S2, transformer oil sample antioxidant scoring S3, transformer oil sample acid value scoring S4
Oxidation with transformer oil sample generates whether substance scoring S5 is all larger than 0, if so, it is not completely deteriorated to export the transformer oil
As a result, and carry out the calculating of step 7, if it is not, then exporting the result that the transformer oil has deteriorated.
It include step 7 after step 6, step 7 includes: moisture the scoring S1, transformer oil sample to transformer oil sample
Dissolved gas scoring S2, transformer oil sample antioxidant scoring S3 and transformer oil sample acid value scoring S4, with
And the oxidation of transformer oil sample generates substance scoring S5 and is summed to obtain transformer oil deterioration scoring.
The step 7 of the embodiment of the present application is carried out after judging whether S1, S2, S3, S4 and S5 are both greater than 0, therefore, step
Rapid 7 is sum S1, S2, S3, S4 and S5, and transformer oil deterioration scoring is also greater than 0, and point of transformer oil deterioration scoring
Number is higher, illustrates that transformer oil degradation is lower, and the score of transformer oil deterioration scoring illustrates transformer oil closer to 100
Quality is better, and the score of transformer oil deterioration scoring illustrates that transformer oil deterioration is serious closer to 0.If the sum of S1 to S5 exceeds
100 points, result is exported by 100 points.
Above-described embodiment further includes weight W1 corresponding with the moisture of transformer oil sample scoring S1 and transformer oil sample
The corresponding weight W2 of dissolved gas scoring S2, weight W3 corresponding with the antioxidant of transformer oil sample scoring S3, with change
The corresponding weight W4 of scoring S4 of the acid value of depressor oil samples and to generate substance scoring S5 with the oxidation of transformer oil sample corresponding
Weight W5；In the present embodiment, W1+W2+W3+W4+W5=1
It carries out the numerical value that each scoring is calculated according to each weight and each scoring, and sums that obtain transformer oil bad
Change final scoring=W1*S1+W2*S2+W3*S3+W4*S4+W5*S5.
Wherein, the numerical value of weight W1-W5 can be according to national standard to the moisture of transformer oil sample, dissolved gas, anti-
Oxidant, acid value generate the judgement of substance with oxidation and are arranged, W1=0.2-0.4；W2=0.2-0.4；W3=0.2-0.3；W4
=0.2-0.3；The numerical value of W5=0.2-0.3, weight W1-W5 can be the same, can also be mutually different, can also part difference portion
Split-phase is same.
Moisture scoring S1=100* (A3-A1)/(A3-A2) of transformer oil sample；The antioxygen of the transformer oil sample
Agent scores S3=100* [(m1/C1) -0.6]/0.4；Scoring S4=100* (the D2- of the acid value of the transformer oil sample
m2)/(D2-D1)。
Specifically, provided according to the index value that GB/T 7595 " transformer oil quality standard in operation " is listed, it is running
The quality of antioxidant needs 60% of the quality for the antioxidant before operation.
Specifically, dissolved gas includes CO, CO in above-described embodiment2And O2, the content of the CO is B1, the CO2's
Content is B2, the O2Content be B3, therefore, the scoring S2=100* of the oxygen element of the dissolved gas of transformer oil sample
[G1-(B1+B2+5*B3)]/(G1-B4).Specifically, listed according to GB/T 7595 " transformer oil quality standard in operation "
Index value regulation, CO, CO2And O2Middle oxygen element is mainly reflected in air content the quality of transformer oil, but air content calculating
When there are also the ingredients of nitrogen, 3 times that nitrogen is oxygen can be approximately considered, therefore, G1 be transformer oil sample air content.
The limit value of the dissolved gas of transformer is 1% before running, and the limit value of the dissolved gas of transformer is 3% in operation,
In the present embodiment, the content of the oxygen element of the moisture of calculating transformer oil samples The content of the oxygen element of the dissolved gas of transformer oil sampleTransformer oil
The oxygen element of the oleic acid of the content Y (Y=0.073*m1) and transformer oil sample of the oxygen element of the antioxidant of sample contains
It measures Z (Z=0.057*m2)；It further include the content m4 that the oxidation of calculating transformer oil samples generates the oxygen element of substance；Further include
The oxidation generation of the oxygen element limit value E1 of substance, running transformer oil is generated according to the oxidation of the transformer oil before operation
Transformation is calculated in the content m4 for the oxygen element that the oxidation of the average value E2 and transformer oil sample of the oxygen element of matter generate substance
The oxidation of device oil samples generates substance scoring S5；The oxidation of transformer oil sample generates substance scoring S5=100* (3.3%-
M4)/(3.3%-0.7%), wherein m4=m3-W-X-Y-Z.
The present invention can obtain transformation using the quantitative detecting method of total oxygen element in elemental analyser detection transformer oil
Total oxygen element content m3 in device oil, while oxygen element content, water, CO, CO in the antioxidant added2、O2, oxygen member in oleic acid
Cellulose content, therefore other oxygen element contents m4 that transformer oil is generated due to deterioration by oxidation can also be calculated according to following formula
Obtain m4=m3-W-X-Y-Z.
The application devises a kind of transformer oil degradation detection, firstly, to the transformation for acquiring running transformer
Device oil samples obtain the achievement data of the moisture of transformer oil sample, dissolved gas, antioxidant and acid value, change are calculated
The oxygen of the oxygen element content of depressor water content in oil, the oxygen element content of dissolved gas, the oxygen element content of antioxidant and oleic acid
Constituent content, it is then, the moisture listed according to GB/T 7595 " transformer oil quality standard in operation ", dissolved gas, anti-oxidant
The index value of agent and acid value calculates oxygen element content, the dissolved gas of running transformer water content in oil as limit value
Oxygen element content, the oxygen element content of the oxygen element content of antioxidant and oleic acid transformer oil in corresponding operation limit value
With the variation degree for the limit value for running preceding transformer oil, oxygen element content, the dissolution of transformer water content in oil is finally calculated
The corresponding scoring of the oxygen element content of the oxygen element content of gas, the oxygen element content of antioxidant and oleic acid, to pass through
Judge whether corresponding scoring is all larger than 0, and obtain transformer oil degradation, provides the processing guidance of transformer oil.
Referring to Fig. 2, the embodiment of the present application also provides a kind of transformer oil deterioration detecting apparatus, comprising:
Sampling apparatus is sampled for the transformer oil sample to running transformer；
Detection device, the content A1 of the moisture for obtaining the transformer oil sample, the transformer oil sample it is molten
Solve the content of gas, the quality m1 of the antioxidant of the transformer oil sample, the transformer oil sample acid value m2, and
Total oxygen element content m3 of the transformer oil sample；
Computing device, the moisture for moisture limit value A2, running transformer oil according to the transformer oil before operation
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of limit value A3 and the transformer oil sample；
According to the dissolved gas limit value B4 of the transformer oil before operation, the dissolved gas limit value B5 of running transformer oil
The dissolved gas scoring S2 of transformer oil sample is calculated with the content of the dissolved gas of the transformer oil sample；
According to the quality limit value of the antioxidant of the transformer oil before operation, the antioxidant of running transformer oil
The Mass Calculation of the antioxidant of quality limit value and the transformer oil sample obtains the antioxidant scoring of transformer oil sample
S3；
According to the acid value limit value of the transformer oil before operation, the acid value limit value and the transformer of running transformer oil
The scoring S4 of the acid value of transformer oil sample is calculated in the acid value of oil samples；
As a result output device, for judging that the moisture of the transformer oil sample scores S1, the transformer oil sample
The scoring of the acid value of dissolved gas scoring S2, the antioxidant scoring S3 of the transformer oil sample and the transformer oil sample
Whether S4 is all larger than 0, if so, exporting, the transformer oil is not completely deteriorated as a result, if it is not, then to export the transformer oil bad
The result of change.
Further, in the detection device of the present embodiment, detection device further include: for obtaining the total of transformer oil sample
Oxygen element content m3；Computing device, further includes: the content of the oxygen element of the moisture for calculating transformer oil samples, transformer
Content, the content and transformation of the oxygen element of the antioxidant of transformer oil sample of the oxygen element of the dissolved gas of oil samples
The content of the oxygen element of the oleic acid of device oil samples；It further include that the oxidation of calculating transformer oil samples generates containing for the oxygen element of substance
Measure m4；As a result output device further include: for according to the transformer oil before operation oxidation generate substance oxygen element limit value E1,
The oxidation that the oxidation of running transformer oil generates the average value E2 and transformer oil sample of the oxygen element of substance generates substance
Oxygen element content m4 be calculated transformer oil sample oxidation generate substance scoring S5.
Further, as a result output device further include: for judging that the moisture of transformer oil sample scores S1, transformer oil
Sample dissolved gas scoring S2, transformer oil sample antioxidant scoring S3, transformer oil sample acid value scoring S4
Oxidation with transformer oil sample generates whether substance scoring S5 is all larger than 0, if so, it is not completely deteriorated to export the transformer oil
As a result, and carry out the calculating of next step, if it is not, then exporting the result that the transformer oil has deteriorated；Wherein, it is calculated as in next step
To the dissolved gas scoring S2 of the moisture of transformer oil sample scoring S1, transformer oil sample, transformer oil sample it is anti-oxidant
The oxidation of the scoring S4 and transformer oil sample of the acid value of agent scoring S3 and transformer oil sample generate substance scoring S5 and carry out
Summation obtains transformer oil deterioration scoring.
The application specifically provides five specific embodiments, and situation is as follows:
One, it is carried out according to transformer oil of the transformer oil degradation detection disclosed by the embodiments of the present invention to certain 110kV
Detection, the specific steps are as follows: the moisture content of certain 110kV transformer oil is 12mg/L, CO, CO2And O2Content be respectively 687,
1330 and 40 μ L/L, oxidation preventive content 0.3%, acid value 0.06, total oxygen element content m3 are 1.01%, then transformer oil sample
Moisture oxygen element contentThe oxygen of the dissolved gas of transformer oil sample
The content of elementThe oxygen member of the antioxidant of transformer oil sample
The content Y=0.073*0.3=0.21818 of element；The content Z=0.057*0.06=of the oxygen element of the oleic acid of transformer oil sample
0.00342；The oxidation of transformer oil sample generates the content m4=1.01-0.001212-0.000284- of the oxygen element of substance
0.021818-0.342=0.983%.According to the national standard of GB/T 7595, the moisture requirement before 110kV transformer station high-voltage side bus is
20mg/L, moisture requirement is 35mg/L in operation.Acid value requirement is 0.03 before transformer station high-voltage side bus, the requirement of Transformer acid value
It is 0.1, the former content of antioxidant is 0.36%, and the air content G1 of transformer oil sample is calculated i.e. 3% by 330-500kV and is limited
Value.S1=100* (35-12)/(35-20)=153.33 point is then calculated, then S1 is 100 points more than 100 points, S2=100* { 3-
[(687+1330+5*40)/10000] }/2=138.915 points, more than 100 points, then S2 is 100 points, S3=100* [(0.3/
0.36) -0.6]/0.4=58.3333 points, S3 is denoted as 58 points, S4=100* (0.1-0.06)/(0.1-0.03)=57.14, S4
It is 57 points, S5=100* (3.3-0.983)/(3.3-0.7)=89.105, S5 is 89 points.The weight factor of W1-5 is disposed as
0.2, then transformer oil deterioration scoring is 80.8 points, scores mapping table it is found that the embodiment of the present application according to the deterioration of transformer oil
110kV transformer oil quality it is preferable.
Two, it is carried out according to transformer oil of the transformer oil degradation detection disclosed by the embodiments of the present invention to certain 110kV
Detection, the specific steps are as follows: certain 110kV insulating oil moisture content is 18mg/L, CO, CO2And O2Content be respectively 832,1627
With 300 μ L/L, oxidation preventive content 0.26, acid value 0.08, total oxygen 1.22%, then the oxygen that can calculate other forms is
1.194%.According to GB/T 7595, the moisture requirement before 110kV transformer station high-voltage side bus is 20mg/L, is 35mg/L in operation.Transformation
Before device is run acid value require be 0.03 and Transformer acid value requirement be 0.1, the former content of antioxidant is 0.36%, is contained
Tolerance is calculated i.e. 3% by 330-500kV as limit value.According to above-mentioned calculation method, the score for calculating moisture is 100 points, is contained
Tolerance is 100 points, and antioxidant score is 31 points, and acid value is 28 points, other form oxygen are 81 points.Weight factor is both configured to
0.2, then gross score is 68 points, and the quality of insulating oil is good.
Three, it is carried out according to transformer oil of the transformer oil degradation detection disclosed by the embodiments of the present invention to certain 110kV
Detection, the specific steps are as follows: certain 500kV insulating oil moisture content is 14mg/L, CO, CO2And O2Content be respectively 156,408
With 91 μ L/L, oxidation preventive content 0.29, acid value 0.07, total oxygen 1.34%, then the oxygen that can calculate other forms is
1.31%.According to GB/T 7595, the moisture requirement before 500kV transformer station high-voltage side bus is 10mg/L, is 15mg/L in operation.Transformation
Before device is run acid value require be 0.03 and Transformer acid value requirement be 0.1, the former content of antioxidant is 0.35%, is contained
Tolerance is calculated i.e. 3% by 330-500kV as limit value.According to above-mentioned calculation method, the score for calculating moisture is 20 points, gassiness
Amount is 100 points, and antioxidant score is 51 points, and acid value is 43 points, other form oxygen are 76 points.Weight factor is both configured to 0.2,
Then gross score is 58 points, and the quality of insulating oil merits attention.
Four, it is carried out according to transformer oil of the transformer oil degradation detection disclosed by the embodiments of the present invention to certain 110kV
Detection, the specific steps are as follows: certain 500kV insulating oil moisture content is 12mg/L, CO, CO2And O2Content be respectively 790,1134
With 280 μ L/L, oxidation preventive content 0.22, acid value 0.05, total oxygen 0.88%, then the oxygen that can calculate other forms is
0.85%.According to GB/T 7595, the moisture requirement before 500kV transformer station high-voltage side bus is 10mg/L, is 15mg/L in operation.Transformation
Before device is run acid value require be 0.03 and Transformer acid value requirement be 0.1, the former content of antioxidant is 0.34%, is contained
Tolerance is calculated i.e. 3% by 330-500kV as limit value.According to above-mentioned calculation method, the score for calculating moisture is 80 points, gassiness
Amount is 100 points, and antioxidant score is 63 points, and acid value is 71 points, other form oxygen are 94 points.Weight factor is both configured to 0.2,
Then gross score is 82 points, and the quality of insulating oil is preferable.
Five, it is carried out according to transformer oil of the transformer oil degradation detection disclosed by the embodiments of the present invention to certain 110kV
Detection, the specific steps are as follows: certain 110kV insulating oil moisture content is 18mg/L, CO, CO2And O2Content be respectively 167,801
With 18 μ L/L, oxidation preventive content 0, acid value 0.08, total oxygen 0.91%, then the oxygen that can calculate other forms is
0.90%.According to GB/T 7595, the moisture requirement before 500kV transformer station high-voltage side bus is 20mg/L, is 35mg/L in operation.Transformation
Before device is run acid value require be 0.03 and Transformer acid value requirement be 0.1, the former content of antioxidant is 0, air content
I.e. 3% is calculated by 330-500kV as limit value.The score for then calculating moisture is 100 points, and air content is 100 points, acid value 28
Point, other form oxygen are 92 points.Weight factor is respectively set to 0.3,0.2,0.3 and 0.2, then gross score is 77 points, insulating oil
Quality it is preferable.
The deterioration scoring mapping table of 1 transformer oil of table
The description of the present application and term " first " in above-mentioned attached drawing, " second ", " third ", " the 4th " etc. are (if deposited
) it is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that use in this way
Data are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be in addition to illustrating herein
Or the sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
It should be appreciated that in this application, " at least one (item) " refers to one or more, and " multiple " refer to two or two
More than a."and/or" indicates may exist three kinds of relationships, for example, " A and/or B " for describing the incidence relation of affiliated partner
It can indicate: only exist A, only exist B and exist simultaneously tri- kinds of situations of A and B, wherein A, B can be odd number or plural number.Word
Symbol "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or"." at least one of following (a) " or its similar expression, refers to
Any combination in these, any combination including individual event (a) or complex item (a).At least one of for example, in a, b or c
(a) can indicate: a, b, c, " a and b ", " a and c ", " b and c ", or " a and b and c ", and wherein a, b, c can be individually, can also
To be multiple.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described 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 of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of transformer oil degradation detection, which comprises the following steps:
Step 1 samples the transformer oil sample of running transformer；
Step 2, the dissolved gas of the content A1 of moisture for obtaining the transformer oil sample, the transformer oil sample contain
Amount, the transformer oil sample antioxidant content m1 and the transformer oil sample acid value m2；
Step 3, according to the moisture limit value A2 of the transformer oil before operation, the moisture limit value A3 of running transformer oil and described
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of transformer oil sample；
According to the dissolved gas limit value B4 of the transformer oil before operation, the dissolved gas limit value B5 of running transformer oil and institute
State the dissolved gas of transformer oil sample content be calculated transformer oil sample dissolved gas scoring S2；
According to the matter of the quality limit value C1 of the antioxidant of the transformer oil before operation, the antioxidant of running transformer oil
The antioxidant of transformer oil sample is calculated in the quality m1 of the antioxidant of amount limit value C2 and the transformer oil sample
Score S3；
According to the acid value limit value D1 of the transformer oil before operation, the acid value limit value D2 and the transformer of running transformer oil
The scoring S4 of the acid value of transformer oil sample is calculated in the acid value m2 of oil samples；
Step 4, judge the transformer oil sample moisture scoring S1, the transformer oil sample dissolved gas scoring S2,
The antioxidant scoring S3 of the transformer oil sample and the transformer oil sample judge whether point S4 is all larger than 0, if so, defeated
The transformer oil is not completely deteriorated as a result, if it is not, then exporting the result that the transformer oil has deteriorated out.
2. transformer oil degradation detection according to claim 1, which is characterized in that further include before the step 4
Obtain total oxygen element content m3 of the transformer oil sample, the moisture for calculating the transformer oil sample oxygen element content
W, the content X of the oxygen element of the dissolved gas of the transformer oil sample, the transformer oil sample antioxidant oxygen member
The oxidation of the content Y, the content Z and the transformer oil sample of the oxygen element of the oleic acid of the transformer oil sample of element produce
The content m4 of the oxygen element of biomass, and according to the transformer oil before operation oxidation generate substance oxygen element limit value E1,
The oxidation that the oxidation of running transformer oil generates the average value E2 and the transformer oil sample of the oxygen element of substance generates
The oxidation that transformer oil sample is calculated containing m4 of the oxygen element of substance generates substance scoring S5.
3. transformer oil degradation detection according to claim 2, which is characterized in that include step after the step 4
Rapid 5, the step 5 includes: the moisture scoring S1 for judging the transformer oil sample, the dissolved gas of the transformer oil sample
Score S2, the scoring S4 of acid value of the antioxidant scoring S3 of the transformer oil sample and the transformer oil sample and described
The oxidation of transformer oil sample generates whether substance scoring S5 is all larger than 0, if so, exporting the not completely deteriorated knot of the transformer oil
Fruit, and the calculating of step 7 is carried out, if it is not, then exporting the result that the transformer oil has deteriorated.
4. transformer oil degradation detection according to claim 3, which is characterized in that include step after the step 5
Rapid 6, the step 6 includes: to comment the dissolved gas of the moisture of transformer oil sample scoring S1, the transformer oil sample
Divide scoring S4, Yi Jisuo of the acid value of S2, the antioxidant scoring S3 of the transformer oil sample and the transformer oil sample
The oxidation for stating transformer oil sample generates substance scoring S5 and is summed to obtain transformer oil deterioration scoring.
5. transformer oil degradation detection according to claim 2, which is characterized in that further include and the transformer oil
The corresponding weight of moisture scoring S1, weight corresponding with the dissolved gas of transformer oil sample scoring S2 and the institute of sample
State the corresponding weight of antioxidant scoring S3, corresponding with the scoring S4 of acid value of the transformer oil sample of transformer oil sample
Weight and generate the corresponding weight of substance scoring S5 with the oxidation of the transformer oil sample；
The numerical value that each scoring is calculated is carried out according to each weight and each scoring, and to the number of each scoring
Value summation obtains the final scoring of transformer oil deterioration.
6. transformer oil degradation detection according to claim 1, which is characterized in that the water of the transformer oil sample
Divide scoring S1=100* (A3-A1)/(A3-A2)；The antioxidant of the transformer oil sample scores S3=100* [(m1/C1)-
0.6]/0.4；Scoring S4=100* (D2-m2)/(D2-D1) of the acid value of the transformer oil sample.
7. transformer oil degradation detection according to claim 1, which is characterized in that the dissolved gas include CO,
CO2And O2, the content of the CO is B1, the CO2Content be B2, the O2Content be B3.
8. transformer oil degradation detection according to claim 7, which is characterized in that the transformer oil sample it is molten
Solve gas scoring S2=100* (G1- (B1+B2+5*B3))/(G1-B4), wherein G1 is the gassiness of the transformer oil sample
Amount, B4 are the dissolved gas limit value of the transformer oil before operation.
9. transformer oil degradation detection according to claim 2, which is characterized in that the oxygen of the transformer oil sample
Change and generate substance scoring S5=100* (3.3%-m4)/(3.3%-0.7%), wherein m4=m3-W-X-Y-Z.
10. a kind of transformer oil deterioration detecting apparatus characterized by comprising
Sampling apparatus is sampled for the transformer oil sample to running transformer；
Detection device, the solution gas of the content A1 of the moisture for obtaining the transformer oil sample, the transformer oil sample
The content of body, the quality m1 of the antioxidant of the transformer oil sample, the acid value m2 of the transformer oil sample and described
Total oxygen element content m3 of transformer oil sample；
Computing device, the moisture limit value for moisture limit value A2, running transformer oil according to the transformer oil before operation
The moisture scoring S1 of transformer oil sample is calculated in the content A1 of the moisture of A3 and the transformer oil sample；
According to the dissolved gas limit value B4 of the transformer oil before operation, the dissolved gas limit value B5 of running transformer oil and institute
The dissolved gas scoring S2 of transformer oil sample is calculated in the content for stating the dissolved gas of transformer oil sample；
According to the quality of the quality limit value of the antioxidant of the transformer oil before operation, the antioxidant of running transformer oil
The Mass Calculation of the antioxidant of limit value and the transformer oil sample obtains the antioxidant scoring S3 of transformer oil sample；
According to the acid value limit value of the transformer oil before operation, the acid value limit value and the transformer oil sample of running transformer oil
The scoring S4 of the acid value of transformer oil sample is calculated in the acid value of product；
As a result output device, the dissolution of moisture scoring S1, the transformer oil sample for judging the transformer oil sample
The scoring S4 of acid value of gas scoring S2, the antioxidant scoring S3 of the transformer oil sample and the transformer oil sample is
It is no to be all larger than 0, if so, it is not completely deteriorated as a result, if it is not, then exporting what the transformer oil had deteriorated to export the transformer oil
As a result.
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