CN109001339A - The segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Method - Google Patents
The segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Method Download PDFInfo
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Abstract
A kind of transformer oil on-line chromatograph monitor device segmentation verification of the application and Fault Locating Method, using the hybrid standard gas sample of known concentration Ci0, hybrid standard gas sample is quantitatively adding from chromatography column inlet injection port, it is detected through chromatography post separation and detector, export chromatogram and measurement concentration C i1, meter sensitivity S, separating degree R and relative error r, the performance of evaluation detector, chromatographic column and gas phase measurement portion point, realize the calibration and fault location of gas phase portion.Using the gassiness standard oil sample of known concentration CiL, gassiness standard oil sample is quantitatively adding from oil sample injection port, degassed device degassing, the detection of chromatography post separation, detector, export chromatogram and measurement concentration C ig, calculate degassing efficiency η, the performance for evaluating degasser, realizes the calibration and fault location of degassing section.The above method can effectively judge the abort situation of transformer on-line chromatograph monitor device, and then verify to corresponding failure position, the accuracy and reliability of realization device entirety measurement result.
Description
Technical field
This application involves transformer oil on-line chromatograph monitor engineering device technique fields more particularly to transformer oil on-line chromatograph to supervise
Survey segmentation verification and the Fault Locating Method of device.
Background technique
With the development of smart grid, main transformer installs transformer oil on-line chromatograph monitor device additional and is widely used.With certain province
For net company, 220kV and the above main transformer install transformer oil on-line chromatograph monitor device additional and cover in destiny amount for more than 600.Transformation
Device oil on-line chromatograph monitor device is that oil immersed type main transformer is mostly important as a kind of small-sized, automation measuring system
Malfunction monitoring, prior-warning device.The working principle of transformer oil on-line chromatograph monitor device is to be dissolved in oil by degasser
In gas separation, then the gas isolated is separated into one pack system by chromatographic column, is converted to voltage finally by detector
The chromatogram of signal is converted to concentration output by calculating.Three degassing, separation, detection key links are all linked with one another, final to protect
Demonstrate,prove the accuracy of measurement result.
Currently, according to ASSOCIATE STATISTICS, because failure is unable to operate normally in the transformer oil on-line chromatograph monitor device of fortune
Account for about 40%；Monitoring device measurement result each component accuracy rate about 20% to 40%.Low normal operation rate and low component accuracy rate
It limits transformer oil on-line chromatograph monitor device and plays its due malfunction monitoring and predictive value.Therefore, in order to ensure new
It networks or the indexs such as the transformer oil on-line chromatograph monitor apparatus function in fortune, accuracy, stability meets operation steady in a long-term
Requirement, need to carry out transformer oil on-line chromatograph monitor device tracking and periodic check.Existing transformer oil on-line chromatograph
The method of calibration of monitoring device mainly uses error judgment method.Error judgment method specifically, configuration various concentration standard oil sample,
Detection definite value is carried out using laboratory precision gas-chromatography, oil sample is then passed through transformer oil on-line chromatograph monitor device and is carried out
The absolute and relative error between monitoring device measured value and laboratory precision chromatography standard is finally calculated in Determination.
But when the measurement result obtained using error judgment method shows transformer oil on-line chromatograph monitor device when something goes wrong, out
Existing problem cannot be checked out which link of the specific generation in degassing, separation, detection.Since there is specific link in problem
It must check, to can not transformer oil on-line chromatograph monitor plant failure be positioned and be eliminated.
Summary of the invention
This application provides a kind of segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Methods, with solution
The problem of certainly transformer oil on-line chromatograph monitor plant failure can not being positioned and be eliminated.
A kind of segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Method, the method are divided into gas phase
Part verification and fault location and degassing section verify and two sections of fault location carry out respectively；
The gas phase portion verification and fault location phase method include:
Step S101: using the hybrid standard gas sample of known concentration Ci0, mixing is quantitatively adding from chromatography column inlet injection port
Standard gas sample；
Step S102: hybrid standard gas sample is detected through chromatography post separation and detector, output chromatogram and measurement concentration
Ci1；
Step S103: meter sensitivity S, separating degree R and relative error r；
Step S104: the performance of evaluation detector, chromatographic column and gas phase measurement portion point；
The degassing section verification and fault location phase method include:
Step S201: using the gassiness standard oil sample of known concentration CiL, gassiness standard oil is quantitatively adding from oil sample injection port
Sample；
Step S202: the degassed device degassing of gassiness standard oil sample, the detection of chromatography post separation, detector export chromatogram
With measurement concentration C ig；
Step S203: degassing efficiency η is calculated；
Step S204: the performance of degasser is evaluated.
Further, the sensitivity S is used to evaluate the performance of detector；
The sensitivity S calculation formula are as follows:
Si=hi·Y1/2i·Vi/Wi,
In the sensitivity S calculation formula, SiIndicate the sensitivity of i component, unit mVmL/mL, hiIndicate i component
Peak height, unit mV, Y1/2iIndicate the half-peak breadth of i component, unit min, ViIndicate flow rate of carrier gas, unit mL/min, Wi
Indicate that sample volume, unit mL, i indicate H2、CH4、C2H6、C2H4、C2H2、CO、CO2Component.
Further, when the sensitivity S i >=2 times baseline noise, show that the performance of detector is qualified；
When 2 times of baseline noises of sensitivity S i <, shows that detector breaks down, continue checking and debugging.
Further, the separating degree R is used to evaluate the performance of chromatographic column；
The separating degree R calculation formula are as follows:
R=2 (tR2-tR1)/(Y1+Y2),
In the separating degree R calculation formula, tR1Expression first chromatographic peak retention time of two adjacent groups point, unit s,
tR2Indicate second chromatographic peak retention time of two adjacent groups point, unit s, Y1Indicate first chromatographic peak peak base of two adjacent groups point
Width, unit s, Y2Indicate that second chromatographic peak peak base of two adjacent groups point is wide, unit s.
Further, when the separating degree R >=1.5, the performance of chromatographic column is qualified；
When the separating degree R < 1.5, chromatographic column breaks down, and continues checking and debugging.
Further, the relative error r is used to evaluate the measurement result accuracy of gas phase portion；
The relative error r calculation formula are as follows:
R=(Ci1-Ci0)/Ci0 × 100%,
In the relative error r calculation formula, Ci0 indicates that i Component Standard concentration in hybrid standard gas sample, unit are μ L/
L, Ci1 indicate that i component measures concentration in hybrid standard gas sample, and unit is μ L/L, and i indicates H2、CH4、C2H6、C2H4、C2H2、CO、
CO2Component.
Further, when the relative error r≤15%, gas phase portion is qualified；
When the relative error r > 15%, gas phase portion breaks down, and continues checking and debugging.
Further, the degassing efficiency η is used to evaluate the performance of degasser；
The degassing efficiency η calculation formula are as follows:
η=Cig/CiL × 100%,
In the degassing efficiency η calculation formula, CiL indicates that i component oil Plays concentration in gassiness standard oil sample, unit are
Concentration is measured in i component oil in μ L/L, Cig expression gassiness standard oil sample, unit is μ L/L, and i indicates H2、CH4、C2H6、C2H4、
C2H2、CO、CO2Component.
Further, when the degassing efficiency η >=90%, degasser is qualified；
When the degassing efficiency η < 90%, degasser breaks down, and continues checking and debugging.
The beneficial effect of the application is:
From the above technical scheme, the embodiment of the present application provides a kind of transformer oil on-line chromatograph monitor device segmentation
Verification and Fault Locating Method.Using the hybrid standard gas sample of known concentration Ci0, it is quantitatively adding from chromatography column inlet injection port mixed
Standardization gas sample, then detected through chromatography post separation and detector, output chromatogram and measurement concentration C i1, meter sensitivity S, divide
From degree R and relative error r, the performance of evaluation detector, chromatographic column and gas phase measurement portion point, and then realize the calibration of gas phase portion
And fault location.Using the gassiness standard oil sample of known concentration CiL, it is quantitatively adding gassiness standard oil sample from oil sample injection port, then
Degassed device degassing, the detection of chromatography post separation, detector, output chromatogram and measurement concentration C ig, calculate degassing efficiency η, comment
The performance of valence degasser, and then realize the calibration and fault location of degassing section.Utilize hybrid standard gas sample and gassiness standard
Oil sample detects the performance of three links by detection evaluation degasser degassing, chromatography post separation, detector, can be effectively
Judge the abort situation of transformer on-line chromatograph monitor device, and then corresponding failure position is verified, realization device is whole
The accuracy and reliability of bulk measurement result is further ensured that on-line chromatograph monitor device performance is in kilter.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow chart of the verification of the application gas phase portion and fault location phase method；
Fig. 2 is the flow chart of the verification of the application degassing section and fault location phase method；
Fig. 3 is that the application is segmented verification to a kind of transformer oil on-line chromatograph monitor device and trouble shoot positioning measurement is shown
It is intended to.
Wherein, 1- oil sample injection port, 2- chromatography column inlet injection port, 3- degasser, 4- chromatographic column, 5- detector, 6-
Chromatogram.
Specific embodiment
Here embodiment will be illustrated in detail, the example is illustrated in the accompanying drawings.In the following description when referring to the accompanying drawings,
Unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Implement described in following embodiment
Mode does not represent all embodiments consistent with the application.
In order to ensure newly networking or the transformer oil on-line chromatograph monitor apparatus function in fortune, accuracy, stability etc. refer to
Mark meets the requirement run steadily in the long term, needs to carry out transformer oil on-line chromatograph monitor device tracking and periodic check.It is existing
There is the method for calibration of transformer oil on-line chromatograph monitor device mainly to use error judgment method.Error judgment method is specifically, configuration
The standard oil sample of various concentration carries out detection definite value using laboratory precision gas-chromatography, oil sample is then passed through transformer oil
Detection is compared in on-line chromatograph monitor device, be finally calculated monitoring device measured value and laboratory precision chromatography standard it
Between absolute and relative error.But when the measurement result obtained using error judgment method shows that transformer oil on-line chromatograph is supervised
Survey device when something goes wrong, the problem cannot be checked out which link of the specific generation in degassing, separation, detection.
It must be checked since specific link occurs in problem, to can not be positioned to transformer oil on-line chromatograph monitor plant failure
And elimination.
Referring to Fig. 1, the flow chart of the verification of the application gas phase portion and fault location phase method, Fig. 2 is the application degassing portion
Branch school is tested and the flow chart of fault location phase method, and Fig. 3 is that the application is segmented a kind of transformer oil on-line chromatograph monitor device
Verification and trouble shoot positioning measurement schematic diagram.
A kind of segmentation verification of transformer oil on-line chromatograph monitor device and Fault Locating Method, the method are divided into gas phase
Part verification and fault location and degassing section verify and two sections of fault location carry out respectively；
The gas phase portion verification and fault location phase method include:
Step S101: it using the hybrid standard gas sample of known concentration Ci0, is quantitatively adding from chromatography column inlet injection port 2 mixed
Standardization gas sample；
Step S102: hybrid standard gas sample is detected through the separation of chromatographic column 4 and detector 5, output chromatogram 6 and measurement concentration
Ci1；
Step S103: meter sensitivity S, separating degree R and relative error r；
Step S104: the performance of evaluation detector, chromatographic column and gas phase measurement portion point；
The degassing section verification and fault location phase method include:
Step S201: using the gassiness standard oil sample of known concentration CiL, gassiness standard is quantitatively adding from oil sample injection port 1
Oil sample；
Step S202: the degassed degassing of device 3 of gassiness standard oil sample, the separation of chromatographic column 4, detector 5 detect, and export chromatography
Fig. 6 and measurement concentration C ig；
Step S203: degassing efficiency η is calculated；
Step S204: the performance of degasser is evaluated.
Specifically, in operation, different malfunctions can generate different feature gas to the oil-filled electric equipments such as transformer
Body (mainly includes H2、CH4、C2H6、C2H4、C2H2、CO、CO2Deng), and be dissolved in insulating oil.Accurate analysis dissolved in insulating oil
The characteristic gas component and content of gas, it can be determined that the safe condition of equipment finds early stage Hidden fault.Transformer oil exists
Line chromatogram monitoring device is installed on transformer, dynamically can continuously be monitored various characteristic gas components in transformer oil and be contained
Amount, finds Hidden fault, and guarantee that transformer is run steadily in the long term in time.Transformer oil on-line chromatograph monitor device passes through
Degasser separates the characteristic gas in insulating oil, and Head space, vacuum method, film osmosis process etc. usually can be used.Through
After crossing chromatographic column 4, each component gas is isolated, is entering detector 5, i.e. gas sensitive detection unit.The effect of detector 5 is by quilt
The isolated component of chromatographic column 4 is converted into the electric signal easily measured according to its physics, chemical property.Usual detector 5 is using hydrogen fire
Flame ionization detector and two kinds of thermal conductivity cell detector.Finally, the telecommunications for representing each component gas concentration can be exported by sensor
Number.
By injecting a certain amount of calibrating gas (H2、CH4、C2H6、C2H4、C2H2、CO、CO2), configure the mixed of concentration C i0
Standardization gas sample.The hybrid standard gas sample that known concentration is Ci0 is quantitatively adding transformer oil by chromatography column inlet injection port 2
In on-line chromatograph monitor device, then, hybrid standard gas sample by chromatographic column 4 separation and detector 5 detect, finally obtain containing
The chromatogram 6 and measurement concentration C i1 of each component.Later, to the sensitivity S of each characteristic gas, separating degree R and relative error r.It is single
When position amount of substance passes through detector 5, the electric signal size of generation is known as detector to the sensitivity S of the substance.Sensitivity S can
Reflection detector 5 treats the size of each component response.Separating degree R indicates the separation degree at adjacent two peak, and separating degree R is bigger,
Show that two adjacent groups point separation is better.Separating degree R is used to evaluate chromatographic isolation effect.The reliable journey of relative error r reflection measurement
Degree.To can be realized and be surveyed to detector 5, chromatographic column 4 and gas phase by meter sensitivity S, separating degree R and relative error r
The performance of amount part is evaluated respectively.
By injecting a certain amount of calibrating gas, it is sufficiently mixed with transformer oil, configures the gassiness mark of known concentration CiL
Quasi- oil sample.Each gas composition concentration is determined by laboratory gas chromatograph in the standard oil sample of configuration.It is CiL's by known concentration
Gassiness standard oil sample is quantitatively adding in transformer oil on-line chromatograph monitor device by oil sample injection port 1.Then, gassiness standard oil
The degassed degassing of device 3 of sample, the separation of chromatographic column 4, detector 5 detect, and finally obtain the chromatogram 6 containing each component and measure dense
Spend Ci1.Later, degassing efficiency η is calculated, the performance of degasser 3 is evaluated.
From the above technical scheme, the embodiment of the present application provides a kind of transformer oil on-line chromatograph monitor device segmentation
Verification and Fault Locating Method.Using the hybrid standard gas sample of known concentration Ci0, it is quantitatively adding from chromatography column inlet injection port 2
Hybrid standard gas sample, then detected through the separation of chromatographic column 4 and detector 5, output chromatogram 6 and measurement concentration C i1, meter sensitivity
S, separating degree R and relative error r, the performance of evaluation detector 5, chromatographic column 4 and gas phase measurement portion point, and then realize gas phase portion
Calibration and fault location.Using the gassiness standard oil sample of known concentration CiL, gassiness standard is quantitatively adding from oil sample injection port 1
Oil sample, then the degassing of degassed device 3, the separation of chromatographic column 4, the detection of detector 5, output chromatogram 6 and measurement concentration C ig, calculate
Degassing efficiency η evaluates the performance of degasser 3, and then realizes the calibration and fault location of degassing section.Utilize hybrid standard gas
Sample and gassiness standard oil sample detect three links by the degassing of detection evaluation degasser 3, the separation of chromatographic column 4, detector 5
Performance can effectively judge the abort situation of transformer on-line chromatograph monitor device, and then carry out to corresponding failure position
Verification, the accuracy and reliability of realization device entirety measurement result are further ensured that on-line chromatograph monitor device performance is in
Kilter.
Further, the sensitivity S is used to evaluate the performance of detector 5；
The sensitivity S calculation formula are as follows:
Si=hi·Y1/2i·Vi/Wi,
In the sensitivity S calculation formula, SiIndicate the sensitivity of i component, unit mVmL/mL, hiIndicate i component
Peak height, unit mV, Y1/2iIndicate the half-peak breadth of i component, unit min, ViIndicate flow rate of carrier gas, unit mL/min, Wi
Indicate that sample volume, unit mL, i indicate H2、CH4、C2H6、C2H4、C2H2、CO、CO2Component.
Further, when the sensitivity S i >=2 times baseline noise, show that the performance of detector 5 is qualified；
When 2 times of baseline noises of sensitivity S i <, shows that detector 5 breaks down, continue checking and debugging.
Specifically, standard mixture carries out in each step such as calibration and fault location of gas phase portion, in strict accordance with
The pertinent regulations of " Gas Chromatographic Determination of GB/T 17623-1998 dissolved gases in insulating oil constituent content " execute, and full
The requirement of 8.2 pairs of gas chromatographs in sufficient power industry standard, DL/T 722-2000 or standard GB/T/T 7252-2001.
Further, the separating degree R is used to evaluate the performance of chromatographic column 4；
The separating degree R calculation formula are as follows:
R=2 (tR2-tR1)/(Y1+Y2),
In the separating degree R calculation formula, tR1Expression first chromatographic peak retention time of two adjacent groups point, unit s,
tR2Indicate second chromatographic peak retention time of two adjacent groups point, unit s, Y1Indicate first chromatographic peak peak base of two adjacent groups point
Width, unit s, Y2Indicate that second chromatographic peak peak base of two adjacent groups point is wide, unit s.
Further, when the separating degree R >=1.5, the performance of chromatographic column 4 is qualified；
When the separating degree R < 1.5, chromatographic column 4 breaks down, and continues checking and debugging.
Specifically, as separating degree R < 1.0, two chromatographic peaks overlap；As separating degree R=1.0, separating degree R can
Reach 98%；As R=1.5, separating degree can reach 99.7%.The mark for using R=1.5 to be kept completely separate as adjacent two chromatographic peak
Will.
Further, the relative error r is used to evaluate the measurement result accuracy of gas phase portion；
The relative error r calculation formula are as follows:
R=(Ci1-Ci0)/Ci0 × 100%,
In the relative error r calculation formula, Ci0 indicates that i Component Standard concentration in hybrid standard gas sample, unit are μ L/
L, Ci1 indicate that i component measures concentration in hybrid standard gas sample, and unit is μ L/L, and i indicates H2、CH4、C2H6、C2H4、C2H2、CO、
CO2Component.
Further, when the relative error r≤15%, gas phase portion is qualified；
When the relative error r > 15%, gas phase portion breaks down, and continues checking and debugging.
Specifically, gassiness standard oil sample is de-gassed in each step such as calibration and fault location of device, in strict accordance with
The pertinent regulations of " Gas Chromatographic Determination of GB/T 17623-1998 dissolved gases in insulating oil constituent content " execute, and full
The requirement of 8.2 pairs of gas chromatographs in sufficient power industry standard, DL/T 722-2000 or standard GB/T/T 7252-2001.
Relative error r can more reflect the credibility of measurement.
It referring to fig. 2, is the application another kind transformer oil on-line chromatograph monitor device segmentation verification and Fault Locating Method
Flow chart.
Further, the degassing efficiency η is used to evaluate the performance of degasser 3；
The degassing efficiency η calculation formula are as follows:
η=Cig/CiL × 100%,
In the degassing efficiency η calculation formula, CiL indicates that i component oil Plays concentration in gassiness standard oil sample, unit are
Concentration is measured in i component oil in μ L/L, Cig expression gassiness standard oil sample, unit is μ L/L, and i indicates H2、CH4、C2H6、C2H4、
C2H2、CO、CO2Component.
Further, when the degassing efficiency η >=90%, degasser 3 is qualified；
When the degassing efficiency η < 90%, degasser 3 breaks down, and continues checking and debugging.
Specifically, the working principle of transformer oil on-line chromatograph monitor device and the conventional offline chromatography detector in laboratory
Working principle be substantially consistent, be all the dissolved gas analysis detection realized in transformer oil, wherein degassing link is
It is crucial.Error occurs by analysis measuring transformer oil on-line chromatograph monitor device measurement result, majority is in degasser 3
Occur caused by error during being de-gassed.By calculating the degassing efficiency of each component, the performance of degasser 3 is evaluated.
From the above technical scheme, the embodiment of the present application provides a kind of transformer oil on-line chromatograph monitor device segmentation
Verification and Fault Locating Method.Using the hybrid standard gas sample of known concentration Ci0, it is quantitatively adding from chromatography column inlet injection port 2
Hybrid standard gas sample, then detected through the separation of chromatographic column 4 and detector 5, output chromatogram 6 and measurement concentration C i1, meter sensitivity
S, separating degree R and relative error r, the performance of evaluation detector 5, chromatographic column 4 and gas phase measurement portion point, and then realize gas phase portion
Calibration and fault location.Using the gassiness standard oil sample of known concentration CiL, gassiness standard is quantitatively adding from oil sample injection port 1
Oil sample, then the degassing of degassed device 3, the separation of chromatographic column 4, the detection of detector 5, output chromatogram 6 and measurement concentration C ig, calculate
Degassing efficiency η evaluates the performance of degasser 3, and then realizes the calibration and fault location of degassing section.Utilize hybrid standard gas
Sample and gassiness standard oil sample detect three links by the degassing of detection evaluation degasser 3, the separation of chromatographic column 4, detector 5
Performance can effectively judge the abort situation of transformer on-line chromatograph monitor device, and then carry out to corresponding failure position
Verification, the accuracy and reliability of realization device entirety measurement result are further ensured that on-line chromatograph monitor device performance is in
Kilter.
Similar portion cross-reference between embodiment provided by the present application, specific embodiment provided above is only
It is several examples under the total design of the application, does not constitute the restriction of the application protection scope.For those skilled in the art
For member, any other embodiment expanded without creative efforts according to application scheme all belongs to
In the protection scope of the application.
Claims (9)
1. segmentation verification and the Fault Locating Method of a kind of transformer oil on-line chromatograph monitor device, which is characterized in that the side
Method is divided into gas phase portion verification and fault location and degassing section verification and two sections of fault location carry out respectively；
The gas phase portion verification and fault location phase method include:
Step S101: using the hybrid standard gas sample of known concentration Ci0, mixing is quantitatively adding from chromatography column inlet injection port (2)
Standard gas sample；
Step S102: hybrid standard gas sample is detected through chromatographic column (4) separation and detector (5), exports chromatogram (6) and measurement is dense
Spend Ci1；
Step S103: meter sensitivity S, separating degree R and relative error r；
Step S104: the performance of evaluation detector, chromatographic column and gas phase measurement portion point；
The degassing section verification and fault location phase method include:
Step S201: using the gassiness standard oil sample of known concentration CiL, gassiness standard oil is quantitatively adding from oil sample injection port (1)
Sample；
Step S202: the degassed device of gassiness standard oil sample (3) degassing, chromatographic column (4) separation, detector (5) detection export color
Spectrogram (6) and measurement concentration C ig；
Step S203: degassing efficiency η is calculated；
Step S204: the performance of degasser is evaluated.
2. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as described in claim 1, special
Sign is that the sensitivity S is used to evaluate the performance of detector (5)；
The sensitivity S calculation formula are as follows:
Si=hi·Y1/2i·Vi/Wi,
In the sensitivity S calculation formula, SiIndicate the sensitivity of i component, unit mVmL/mL, hiIndicate the peak of i component
Height, unit mV, Y1/2iIndicate the half-peak breadth of i component, unit min, ViIndicate flow rate of carrier gas, unit mL/min, WiIt indicates
Sample volume, unit mL, i indicate H2、CH4、C2H6、C2H4、C2H2、CO、CO2Component.
3. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as claimed in claim 2, special
Sign is, when the sensitivity S i >=2 times baseline noise, shows that the performance of detector (5) is qualified；
When 2 times of baseline noises of sensitivity S i <, shows that detector (5) break down, continue checking and debugging.
4. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as described in claim 1, special
Sign is that the separating degree R is used to evaluate the performance of chromatographic column (4)；
The separating degree R calculation formula are as follows:
R=2 (tR2-tR1)/(Y1+Y2),
In the separating degree R calculation formula, tR1Indicate first chromatographic peak retention time of two adjacent groups point, unit s, tR2It indicates
Second chromatographic peak retention time of two adjacent groups point, unit s, Y1Indicate that first chromatographic peak peak base of two adjacent groups point is wide, it is single
Position is s, Y2Indicate that second chromatographic peak peak base of two adjacent groups point is wide, unit s.
5. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as claimed in claim 4, special
Sign is, when the separating degree R >=1.5, the performance of chromatographic column (4) is qualified；
When the separating degree R < 1.5, chromatographic column (4) breaks down, and continues checking and debugging.
6. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as described in claim 1, special
Sign is that the relative error r is used to evaluate the measurement result accuracy of gas phase portion；
The relative error r calculation formula are as follows:
R=(Ci1-Ci0)/Ci0 × 100%,
In the relative error r calculation formula, Ci0 indicates that i Component Standard concentration in hybrid standard gas sample, unit are μ L/L, Ci1
Indicate that i component measures concentration in hybrid standard gas sample, unit is μ L/L, and i indicates H2、CH4、C2H6、C2H4、C2H2、CO、CO2Group
Point.
7. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as claimed in claim 6, special
Sign is, when the relative error r≤15%, gas phase portion is qualified；
When the relative error r > 15%, gas phase portion breaks down, and continues checking and debugging.
8. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as described in claim 1, special
Sign is that the degassing efficiency η is used to evaluate the performance of degasser (3)；
The degassing efficiency η calculation formula are as follows:
η=Cig/CiL × 100%,
In the degassing efficiency η calculation formula, CiL indicates that i component oil Plays concentration in gassiness standard oil sample, unit are μ L/
Concentration is measured in L, Cig expression gassiness standard oil sample in i component oil, unit is μ L/L, and i indicates H2、CH4、C2H6、C2H4、C2H2、
CO、CO2Component.
9. segmentation verification and the Fault Locating Method of transformer oil on-line chromatograph monitor device as claimed in claim 8, special
Sign is, when the degassing efficiency η >=90%, degasser (3) is qualified；
When the degassing efficiency η < 90%, degasser (3) breaks down, and continues checking and debugging.
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