CN106124884A - The warning system of Monitoring Power Transformer abnormality - Google Patents
The warning system of Monitoring Power Transformer abnormality Download PDFInfo
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- CN106124884A CN106124884A CN201610410724.2A CN201610410724A CN106124884A CN 106124884 A CN106124884 A CN 106124884A CN 201610410724 A CN201610410724 A CN 201610410724A CN 106124884 A CN106124884 A CN 106124884A
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- 230000005856 abnormality Effects 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 73
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 46
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 45
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 230000000750 progressive effect Effects 0.000 claims abstract description 10
- 230000001427 coherent effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 63
- 238000005516 engineering process Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 238000004868 gas analysis Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000012364 Peperomia pellucida Nutrition 0.000 description 1
- 240000007711 Peperomia pellucida Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- -1 hydrocarbons compounds Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
- G01N33/0065—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means using more than one threshold
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Power Engineering (AREA)
- Business, Economics & Management (AREA)
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- Food Science & Technology (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Housings And Mounting Of Transformers (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Emergency Alarm Devices (AREA)
Abstract
A kind of warning system of Monitoring Power Transformer abnormality, it includes ECU unit, memory unit, three detection modules and warning and display unit, it is characterised in that described three detection modules include concentration of component detection module, hydrocarbon content detection module, gas production rate detection module；Wherein concentration of component detection module, hydrocarbon content detection module, gas production rate detection module is connected with ECU unit respectively, accept the control instruction of ECU unit and feed back coherent signal to ECU unit, memory unit is connected with ECU unit, reports to the police and display unit is responsible for that the alarm signal that ECU unit exports carries out outside display and is processed.This invention takes primary concentration warning operation and warning progressive operation two-stage judge process, measurement inaccuracy or the instability produced because of multiple factors impact can be avoided to the full extent, can classification not report to the police exactly, prompting operator carry out the activities such as corresponding maintenance.
Description
Technical field
The present invention relates to the warning system of a kind of Monitoring Power Transformer abnormality, belong to technical field of electric power transmission.
Background technology
Along with developing rapidly of China's power industry, power transformer is just towards supertension, and jumbo direction is developed, electricity
Power net is the most just being organized into the bulk power grid that huge regionality is the most trans-regional, and the confession mutually of transferring electricity from the west to the east, north and south, a whole nation network
Electrical network general layout is formed.Along with increase and the expansion of electrical network scale of power equipment capacity, the safe operation to power system
Having higher requirement with power supply reliability, the various countries' large-scale blackout in recent years occurred also has beaten police for China's power system
Clock.With a very important position in power system of transformator, is one of electrical equipment most important and the most expensive in power system,
Its security reliability run is directly connected to the safety and stablization of power system.Therefore, the most large-scale electricity of transformator is improved
The safe and reliable operation tool of whole electrical network is of great significance by power transformator reliability of operation.Transformer oil dissolves
Gas analysis (DGA) technology is considered as the effective means of Diagnosis for Power Transformer initial failure always.It can find in time
The insulation fault that inside transformer exists, may advantageously facilitate by periodic maintenance mode to the transition of State Maintenance mode, thus is subject to
To being widely applied.The principle of DGA technology is that generation speed based on the specific hydrocarbon gas of any one becomes with temperature
Change, at a certain temperature, often have the factor of created gase of a certain gas that maximum occurs, along with temperature raises, the gas that factor of created gase is maximum
Body is followed successively by CH4, C2H6, C2H4, C2H2, H2, C0, C02.
Owing to transformer oil has excellent heat radiation and insulating properties, therefore oil-immersed power transformer is in power system
Quoted widely.In normal running, transformator can be in mechanical stress and the impact of the various factors such as heat, electricity
Under the most aging, and generate some imflammable gas.If transformator exists internal Hidden fault, trouble location discharges
Energy can accelerate the cracking of insulant, promotes the content of oil dissolved gas and gas production rate to be greatly improved.By obtaining
Transformer oil sample, uses the method for gas chromatogram just can obtain the content of each component of oil dissolved gas, thus to transformation
The health status of device is made assessment or the transformator that there is exception carries out the analysis of failure condition.Therefore, in transformer oil
Oil-filled transformer fault diagnosis is had great significance by dissolved gas analysis.
Three-ratio method as one of DGA technology has played certain effect in engineering reality, but owing to ratio is compiled
Code is limited, and fault type is the most simply divided into some classical types, it is impossible to contains all fault types in actual motion, compiles
There is ambiguity in the mapping relations that code character is closed between failure mode, simple man-to-man mapping can not the most objectively embody
The complicated Rhizoma Nelumbinis haveing between sign and fault closes relation, there is also the most smart of some gas contents being likely to result in due to various factors
Really, and then to fault type erroneous judgement is formed.Fault type is mainly judged, due to fault by the most current three-ratio method
Type judges relatively coarse, discloses trouble location and fault severity level the most deeply, and therefore decision makers is difficult to by three
Ratio method diagnostic result determines that complete Strategies of Maintenance.
It is therefore desirable to improve the DGA technology used at present to improve the precision of Transformer Fault Diagnosis and
Stability, it is to avoid occur erroneous judgement operation to produce harmful effect.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention proposes the warning system of a kind of Monitoring Power Transformer abnormality,
This warning system can avoid measurement inaccuracy or the instability produced because of multiple factors impact to the full extent, it is possible to accurately
Ground classification is not reported to the police, and prompting operator carry out the activities such as corresponding maintenance.
For achieving the above object, the technology of the present invention is contemplated that, in order to avoid measuring the maloperation produced, farthest
Ensureing to judge alarm accuracy, the warning system of the Monitoring Power Transformer abnormality of the present invention takes primary concentration warning behaviour
Making and warning progressive operation two-stage judge process, the technological means of employing is:
Scheme 1, the warning system of a kind of Monitoring Power Transformer abnormality, it includes ECU unit, memory unit, three
Detection module and warning and display unit, it is characterised in that described three detection modules include concentration of component detection module, hydrocarbon
Content detection module, gas production rate detection module；Wherein concentration of component detection module, hydrocarbon content detection module, gas production rate is examined
Survey module to be connected with ECU unit respectively, accept the control instruction of ECU unit and feed back coherent signal, bin to ECU unit
Unit is connected with ECU unit, reports to the police and display unit is responsible for that the alarm signal that ECU unit exports carries out outside display and is processed；
Wherein said concentration of component detection module can the concentration of each gas component of cycle detection, and by each detectable concentration value Di with
Ultimate value Di0 corresponding to this gas component compares successively, and the concentration once obtaining the detection of this gas component goes beyond the limit of
Value, then carry out the counting operation of enumerator N, equal or exceed K once enumerator N, then it represents that have K group gas component beyond
Ultimate value, then carry out starting warning progressive operation.
Scheme 2, warning system according to the Monitoring Power Transformer abnormality of scheme 1, it is characterised in that each gas
Each component includes H2, CH4, C2H4, C2H6, C2H2, total hydrocarbon.
Scheme 3, warning system according to the Monitoring Power Transformer abnormality of scheme 1, it is characterised in that normal conditions
Under, K may be configured as K≤6, and preferably 3.
Scheme 4, warning system according to the Monitoring Power Transformer abnormality of scheme 1, it is characterised in that described hydrocarbon contains
Amount detection module and gas production rate detection module detect transformator total hydrocarbon content C and total hydrocarbon absolute gas production rate V respectively,
C0, C1 represent transformator total hydrocarbon content first threshold and Second Threshold respectively, and V0, V1, V2 represent total hydrocarbon absolute aerogenesis speed respectively
Rate first threshold, Second Threshold and the 3rd threshold value, by contrast transformator total hydrocarbon content C and total hydrocarbon absolute gas production rate V with
Numerical relation between above-mentioned multiple threshold value judges different alarm level, and wherein C0 and V0 is chosen as empirical value, C1=2～
3C0, V1=1～2V0 or V2=3～4V0.
Inventing after deliberation, have employed above-mentioned technological means, the single level changing existing transformator warning system judges, carries
The accuracy that high transformer abnormality judges；Optimize transformer fault warning system, decrease owing to a variety of causes causes
The probability of erroneous judgement maloperation, it is ensured that the accuracy of output alarm condition, the method judged simultaneously also by secondary detection is real
Show the further classification to middle rank fault alarm, enhance application and the reliability of warning system.
Accompanying drawing explanation
Fig. 1 is the transmitting transformer structural representation of the present invention；
Fig. 2 is the system schematic of the warning system of the present invention；
Fig. 3 is the enforcement steps flow chart sketch of the warning system of the present invention.
Detailed description of the invention
As it is shown in figure 1, the oil immersed type transmitting transformer structural representation of the present invention, this transformator includes covering whole transformation
The transformer shell 1 of device, the insulation fuel tank 2 being connected on transformer shell 1, transformator liner 3, and the master of transmitting transformer
Wanting functor winding coil 4 and iron core 5, detection device 6 and thermodetector 7 are positioned at transformer shell 1 top edges, are used for carrying out
The detection of related control data, is positioned at insulating oil 10 and the air layer 11 of insulation fuel tank 2.This transformator is in running
Can be affected by mechanical stress, temperature, highfield and the various factors such as moisture, oxygen, insulating oil can be in these factors
There is carbonization under effect, crack and the various chemical reactions such as oxidation, generate hydrogen, low molecular hydrocarbons compounds, greasy filth, some
Oxide and hydrocarbon polymer (X wax), here it is transformer insulation oil deterioration and catabiosis.Under normal circumstances, insulation
Oil only generates more minimal amount of gases, within the content of these gases also would generally be maintained at national regulations value.Once transformation
Device occurs internal Hidden fault, the energy of trouble point release can accelerate insulating oil decomposition aerogenesis, and gas concentration may be caused to surpass
Cross marginal value.And the source of Gases Dissolved in Transformer Oil is extremely complex, transformator the most also can be electric, warm
Generating a small amount of gas under the effect of stress, when transformator occurs internal Hidden fault, the energy of trouble point release can accelerate
The decomposition aerogenesis of insulant, may be caused gas concentration over-limit condition, therefore substantially can be sentenced by the concentration of gas
Disconnected transformer state is the most normal.It is as shown in the table for regulation gas dissolved in oil of power trans-formers ultimate value.
Table Gas in Oil of Transformer concentration of component ultimate value (uL/L)
As in figure 2 it is shown, the warning system of the Monitoring Power Transformer abnormality of the present invention includes ECU unit, memory unit,
Three detection modules and warning and display unit, described three detection modules include concentration of component detection module, and hydrocarbon content is examined
Survey module, gas production rate detection module.Wherein concentration of component detection module, hydrocarbon content detection module, gas production rate detection module
It is connected with ECU unit, accepts the control instruction of ECU unit and feed back various signals, memory unit and ECU to ECU unit
Unit connects, and generally also becomes the ingredient of ECU, reports to the police and display unit is responsible for entering the alarm signal of ECU unit output
The outside display of row processes.
Utilizing oil dissolved gas concentration to during judging that transformator is whether abnormal, it usually needs by oil dissolved gas
The concentration of each component compares with the ultimate value of solution gas concentration in recommended oil, if arbitrary gas concentration over-standard just should
Attract great attention.But rely solely on gas concentration value and entirely accurate can not judge whether equipment exists fault, because certain
A little non-faulting factors are likely to cause Oil Dissolved Gases Concentration to increase, the gas concentration limit that even more than directive/guide is recommended
Value.Report to the police in operation in primary concentration, described concentration of component detection module can the cycle detection each component of each gas (H2,
CH4, C2H4, C2H6, C2H2, total hydrocarbon) concentration, and by each concentration value Di and ultimate value Di0 corresponding to this gas component
(D10, D20, D30, D40, D50, D60) compares successively, and the concentration once obtaining the detection of this gas component goes beyond the limit of value,
Then carrying out the counting operation of enumerator N, once enumerator N equals or exceeds K (under normal circumstances, N, K can be arranged, K≤6, preferably
It is 3) time, then it represents that there is K group gas component beyond ultimate value, then carry out starting warning progressive operation, if being measured six
After group concentration, enumerator is not up to K value, then enumerator can be at standby mode or clearing waits that next time, detection instruction sent.So
One, judged by repeated detection, it is ensured that the accuracy of output alarm condition, it is to avoid owing to the detection of a certain gas component is lost
The false alarm by mistake caused.It should be noted that above-mentioned detected components type can select according to situation, it can be three kinds, four kinds
Or five kinds etc..
Finding through long-term operating experience, transformer fault is typically to start with the low-yield fault of latency, if leaving
Fault Free Development, may finally cause the generation of transformator major accident, owing to gas concentration can only be from a side reflection
The running status that transformator is current, and gas production rate reflects the out of order order of severity the most to a certain extent, the present invention's
During warning progressive operation, bound gas concentration and gas production rate carry out the most objectively detection to transformer state just
Assessment.Described hydrocarbon content detection module and gas production rate detection module detect that transformator total hydrocarbon content C and total hydrocarbon are exhausted respectively
To gas production rate V, C0, C1 represent transformator total hydrocarbon content first threshold and Second Threshold respectively, and V0, V1, V2 represent always respectively
Hydrocarbon absolute gas production rate first threshold, Second Threshold and the 3rd threshold value, absolute by contrast transformator total hydrocarbon content C and total hydrocarbon
Numerical relation between gas production rate V from above-mentioned threshold value judges different alarm level, and these alarm level are divided into slight event
Barrier, medium outage and catastrophe failure, in research process, find, in order to refine fault level, middle rank fault can be divided again simultaneously
For stable intermediate fault and continuous worsening intermediate fault, the warning of middle rank fault is also easier the erroneous judgement in detection occur
The disconnected reduction with accuracy, therefore, the warning system of the present invention is achieved middle rank fault by the method that secondary detection judges
The raising of warning accuracy.
Specifically, demonstrate the enforcement steps flow chart sketch of the warning system of the present invention as shown in Figure 3,
First starting warning system, arrange i value, K value and enumerator N reset, wherein i, K are integer, and i=1, K≤6, excellent
Elect 3 as, each component of each gas of cycle detection (H2, CH4, C2H4, C2H6, C2H2, total hydrocarbon) in concentration of component detection module
Concentration obtain each concentration value Di (D1, D2, D3, D4, D5, D6), and whether judge the concentration value of each gas component successively
Beyond respective ultimate value Di0 (D10, D20, D30, D40, D50, D60), once corresponding gas component goes beyond the limit of value,
Then carry out enumerator N adds 1 operation, when enumerator N is more than or equal to K, i.e. goes beyond the limit of the gas component quantity of value more than K
Time, show that the primary concentration warning operation of warning system is complete, then launch into warning progressive operation；
Detect that transformator total hydrocarbon content C and total hydrocarbon are exhausted respectively at described hydrocarbon content detection module and gas production rate detection module
To gas production rate V, by total hydrocarbon content C and absolute gas production rate V and total hydrocarbon content first threshold and Second Threshold C0, C1, total hydrocarbon
Definitely gas production rate first threshold, Second Threshold and the 3rd threshold value V0, V1, V2 compare, and judge that total hydrocarbon content C is with exhausted respectively
To the interval range residing for gas production rate V, it is judged that show that corresponding fault level is reported to the police.
Wherein it should be noted that C0, the specifically chosen of C1, V0, V1, V2 can be obtained by empirical value, it is also possible to by C0
It is chosen as empirical value, C1=2～3C0, V1=1～2V0 or V2=3～4V0 with V0.
Carry out concrete early warning progressive operation according to following standard to judge,
1). when meeting C ＜ C0 and V ＜ V0, indication transformer is normal, then alarm level is normal condition；
2). when meeting C0 ＜ C ＜ C1 and V ＜ V0, there is Hidden fault in indication transformer, and fault progression is slow, impact
More slight, then alarm level is minor failure；
3). when meeting C0 ＜ C ＜ C1 and V0 ＜ V ＜ V1, indication transformer there may exist obvious fault, now needs to carry out
Secondary detection total hydrocarbon content C ' and absolute gas production rate V ' determines whether, and needs before secondary detection to postpone the t time,
Postponing certain t time, to carry out secondary detection again be the time span in order to increase detection, it is ensured that during detection will not by other because of
The impact of element is to improve precision, if still meeting C0 ＜ C ' ＜ C1 and V0 ＜ V ' ＜ V1, now shows to exist relatively stable
Medium outage, then alarm level is medium outage (stablizing)；
4). when meeting C0 ＜ C ＜ C1 and V1 ＜ V ＜ V2, indication transformer there may exist obvious fault, now needs to carry out
Secondary detection total hydrocarbon content C ' and absolute gas production rate V ' determines whether, and needs before secondary detection to postpone the t time.
If still meeting C0 ＜ C ' ＜ C1 and V1 ＜ V ' ＜ V2, now showing to there is the medium outage deteriorated more rapidly, then reporting to the police
Grade is medium outage (deterioration)；
5). when meeting C1 ＜ C and V2 ＜ V, there is catastrophe failure in indication transformer, and fault progression deteriorates rapidly, and impact is relatively
For seriously, then alarm level is catastrophe failure.
As it has been described above, the warning system of the present invention by primary Concentration Testing realize pre-alarm and bound gas concentration with
And the warning progressive operation of gas production rate, optimize transformer fault warning system, decrease the mistake caused due to a variety of causes
Sentencing the probability of maloperation, it is ensured that the accuracy of output alarm condition, the method judged simultaneously also by secondary detection achieves
Further classification to middle rank fault alarm, enhances application and the reliability of warning system.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, meanwhile, the implication such as formula cited by the present invention, symbol (such as sequence mark i, threshold k, enumerator N etc.) is ability
Accustomed meanings in territory, the scope of the present invention is limited by claims and equivalent thereof.The accompanying drawing be simultaneously given in description
Being only used as the convenience that description understands, claim does not carry out any restriction, flow chart is also only as understanding simultaneously
Simplification that is convenient and that make processes, and does not cause the defect etc. of insufficient disclosure.
Claims (1)
1. a warning system for Monitoring Power Transformer abnormality, it includes ECU unit, memory unit, three detections
Module and warning and display unit, it is characterised in that described three detection modules include concentration of component detection module, hydrocarbon content
Detection module, gas production rate detection module；Wherein concentration of component detection module, hydrocarbon content detection module, gas production rate detection mould
Block is connected with ECU unit respectively, accepts the control instruction of ECU unit and feeds back coherent signal, memory unit to ECU unit
It is connected with ECU unit, reports to the police and display unit is responsible for that the alarm signal that ECU unit exports carries out outside display and is processed；Wherein
Described concentration of component detection module can the concentration of each gas component of cycle detection, and by each detectable concentration value Di and this gas
Ultimate value Di0 corresponding to body component compares successively, and the concentration once obtaining the detection of this gas component goes beyond the limit of value, then
Carry out the counting operation of enumerator N, equal or exceed K once enumerator N, then it represents that have K group gas component beyond the limit
Value, then carry out starting warning progressive operation；
K is set to K≤6；
Described hydrocarbon content detection module and gas production rate detection module detect that transformator total hydrocarbon content C and total hydrocarbon are absolute respectively
Gas production rate V, C0, C1 represent transformator total hydrocarbon content first threshold and Second Threshold respectively, and V0, V1, V2 represent total hydrocarbon respectively
Definitely gas production rate first threshold, Second Threshold and the 3rd threshold value, is definitely produced by contrast transformator total hydrocarbon content C and total hydrocarbon
Numerical relation between gas speed V from above-mentioned multiple threshold values judges different alarm level, and wherein C0 and V0 is chosen as experience
Value, C1=2～3C0, V1=1～2V0；
Carry out concrete early warning progressive operation according to following standard to judge:
1). when meeting C ＜ C0 and V ＜ V0, indication transformer is normal, then alarm level is normal condition；
2). when meeting C0 ＜ C ＜ C1 and V ＜ V0, there is Hidden fault in indication transformer, and fault progression is slow, impact
More slight, then alarm level is minor failure；
3). when meeting C0 ＜ C ＜ C1 and V0 ＜ V ＜ V1, indication transformer there may exist obvious fault, now needs to carry out
Secondary detection total hydrocarbon content C ' and absolute gas production rate V ' determines whether, and needs before secondary detection to postpone the t time,
Postponing certain t time, to carry out secondary detection again be the time span in order to increase detection, it is ensured that during detection will not by other because of
The impact of element is to improve precision, if still meeting C0 ＜ C ' ＜ C1 and V0 ＜ V ' ＜ V1, now shows to exist relatively stable
Medium outage, then alarm level is medium outage；
4). when meeting C0 ＜ C ＜ C1 and V1 ＜ V ＜ V2, indication transformer there may exist obvious fault, now needs to carry out
Secondary detection total hydrocarbon content C ' and absolute gas production rate V ' determines whether, and needs before secondary detection to postpone the t time；
If still meeting C0 ＜ C ' ＜ C1 and V1 ＜ V ' ＜ V2, now showing to there is the medium outage deteriorated more rapidly, then reporting to the police
Grade is medium outage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410724.2A CN106124884A (en) | 2014-07-16 | 2014-07-16 | The warning system of Monitoring Power Transformer abnormality |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410341162.1A CN104091416B (en) | 2014-07-16 | 2014-07-16 | A kind of warning system of Monitoring Power Transformer abnormality |
| CN201610410724.2A CN106124884A (en) | 2014-07-16 | 2014-07-16 | The warning system of Monitoring Power Transformer abnormality |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410341162.1A Division CN104091416B (en) | 2014-07-16 | 2014-07-16 | A kind of warning system of Monitoring Power Transformer abnormality |
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| CN106124884A true CN106124884A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610415713.3A Pending CN106124886A (en) | 2014-07-16 | 2014-07-16 | The method of work of the warning system of the Monitoring Power Transformer abnormality of good reliability |
| CN201610424200.9A Pending CN106128046A (en) | 2014-07-16 | 2014-07-16 | Monitoring Power Transformer state, the method for work of the gradable warning system do not reported to the police |
| CN201610411229.3A Pending CN105976574A (en) | 2014-07-16 | 2014-07-16 | Alarm system for monitoring power transformer abnormity state and realizing graded alarm |
| CN201610410724.2A Pending CN106124884A (en) | 2014-07-16 | 2014-07-16 | The warning system of Monitoring Power Transformer abnormality |
| CN201410341162.1A Active CN104091416B (en) | 2014-07-16 | 2014-07-16 | A kind of warning system of Monitoring Power Transformer abnormality |
| CN201610410705.XA Pending CN106097670A (en) | 2014-07-16 | 2014-07-16 | A kind of Monitoring Power Transformer is abnormal, the method for work of the gradable warning system do not reported to the police |
| CN201610412301.4A Pending CN105976575A (en) | 2014-07-16 | 2014-07-16 | Operation method of alarm system for monitoring abnormal state of power transformer |
| CN201610410723.8A Pending CN106097671A (en) | 2014-07-16 | 2014-07-16 | The method of work of the warning system of Monitoring Power Transformer abnormality |
| CN201610412462.3A Pending CN105976576A (en) | 2014-07-16 | 2014-07-16 | Alarm system with relatively high reliability for monitoring power transformer abnormity state |
| CN201610412309.0A Pending CN106093306A (en) | 2014-07-16 | 2014-07-16 | A kind of Monitoring Power Transformer abnormality, the gradable warning system do not reported to the police |
| CN201610416019.3A Pending CN105976577A (en) | 2014-07-16 | 2014-07-16 | Alarm system for monitoring abnormal state of power transformer |
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| CN201610415713.3A Pending CN106124886A (en) | 2014-07-16 | 2014-07-16 | The method of work of the warning system of the Monitoring Power Transformer abnormality of good reliability |
| CN201610424200.9A Pending CN106128046A (en) | 2014-07-16 | 2014-07-16 | Monitoring Power Transformer state, the method for work of the gradable warning system do not reported to the police |
| CN201610411229.3A Pending CN105976574A (en) | 2014-07-16 | 2014-07-16 | Alarm system for monitoring power transformer abnormity state and realizing graded alarm |
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| CN201410341162.1A Active CN104091416B (en) | 2014-07-16 | 2014-07-16 | A kind of warning system of Monitoring Power Transformer abnormality |
| CN201610410705.XA Pending CN106097670A (en) | 2014-07-16 | 2014-07-16 | A kind of Monitoring Power Transformer is abnormal, the method for work of the gradable warning system do not reported to the police |
| CN201610412301.4A Pending CN105976575A (en) | 2014-07-16 | 2014-07-16 | Operation method of alarm system for monitoring abnormal state of power transformer |
| CN201610410723.8A Pending CN106097671A (en) | 2014-07-16 | 2014-07-16 | The method of work of the warning system of Monitoring Power Transformer abnormality |
| CN201610412462.3A Pending CN105976576A (en) | 2014-07-16 | 2014-07-16 | Alarm system with relatively high reliability for monitoring power transformer abnormity state |
| CN201610412309.0A Pending CN106093306A (en) | 2014-07-16 | 2014-07-16 | A kind of Monitoring Power Transformer abnormality, the gradable warning system do not reported to the police |
| CN201610416019.3A Pending CN105976577A (en) | 2014-07-16 | 2014-07-16 | Alarm system for monitoring abnormal state of power transformer |
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| RU2756508C2 (en) * | 2020-01-16 | 2021-10-01 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Магнитогорский государственный технический университет им. Г.И. Носова" (ФГБОУ ВО "МГТУ им. Г.И. Носова") | System for monitoring technical condition of power transformer by condition of oil |
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Also Published As
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| CN106097670A (en) | 2016-11-09 |
| CN106128046A (en) | 2016-11-16 |
| CN105976576A (en) | 2016-09-28 |
| CN105976575A (en) | 2016-09-28 |
| CN104091416B (en) | 2016-08-24 |
| CN104091416A (en) | 2014-10-08 |
| CN105976574A (en) | 2016-09-28 |
| CN106124886A (en) | 2016-11-16 |
| CN106093306A (en) | 2016-11-09 |
| CN106097671A (en) | 2016-11-09 |
| CN105976577A (en) | 2016-09-28 |
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