CN108205611A - With reference to transformer methods of risk assessment, device, equipment and the medium of latent fault - Google Patents
With reference to transformer methods of risk assessment, device, equipment and the medium of latent fault Download PDFInfo
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Abstract
The present invention provides a kind of transformer methods of risk assessment, device, equipment and the media of combination latent fault.Wherein, this method includes：From the specific run experience of transformer station high-voltage side bus experience library extraction transformer；The specific run experience includes at least one of：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, terminal short-circuit number of shocks；It is undergone according to the specific run, calculates the probability of malfunction that potential risk occurs for the transformer.By the present invention, solve the problems, such as that the accuracy of transformer risk assessment is low, improve the accuracy of transformer risk assessment.
Description
Technical field
The present invention relates to transformer risk assessment field, in particular to a kind of transformer wind of combination latent fault
Dangerous appraisal procedure, device, equipment and medium.
Background technology
Power transformer is the core of energy conversion, transmission in power grid, is national economy every profession and trade and huge numbers of families' energy
The only way which must be passed in source is one of most important in power grid and most critical equipment.Therefore, the operation and maintenance technology of transformer is improved
And management level, prevention and the probability for reducing failure, maintenance cost is reduced using rational maintenance policy, is domestic and international electric power row
Industry urgent need to solve the problem.
In view of power transformer is in prolonged operation, it is rotten by electric and magnetic oscillation, mechanical wear, chemical action, air
It is influenced inside and outside erosion, galvano-cautery etc., health status gradually degenerates, and affects the safety and precise of the equipment to varying degrees.
The purpose for carrying out risk assessment to power transformer is exactly to dive to assess the abnormal operating condition of transformer to electric system
In influence degree, quantitative analysis is carried out to the uncertain of Transformer, related personnel is allowed to be better understood by transformer
Health status and take which kind of counter-measure.
At present there are many kinds of China's transformer appraisal procedures, mostly based on preventive trial, wherein mainly including：It measures
Insulation resistance is measured in DC leakage-current, DC break down voltage experiment, dielectric loss tangent test, insulation oil test, the test of micro- water, oil
Dissolved gas chromatography, local discharge test etc..Above-mentioned transformer methods of risk assessment is all by obtaining in advance largely with setting
Standby relevant information, and the accuracy index issued based on previous transformer equipment failure Ageing Model or Electricity Monitoring Commission is estimated
Transformer overall failure probability, after probability of malfunction is obtained, foundation《Power equipment risk assessment directive/guide》Wait Research Thinkings, assessment
Its normal condition risk situation.
However, since normal risk caused by equipment fault aging is the one of which risk that transformer breaks down.It removes
Except normal risk caused by equipment normal aging, transformer also will in the process of running because being acted on by a variety of stress
Hidden fault state can be stepped into.Hidden fault state, which further develops, to be caused the accident, and cause power failure.
When equipment is in Hidden fault state, failure rate will can be significantly hotter than normal condition.
Transformer methods of risk assessment in the related art only assesses the normal risk of transformer, does not tie
The influence of Hidden fault is closed, the accuracy for leading to transformer risk assessment is low.
Invention content
The present invention provides a kind of transformer methods of risk assessment, device, equipment and the medium of combination latent fault, so that
Solve the problems, such as that the accuracy of transformer risk assessment in the relevant technologies is low less.
In a first aspect, an embodiment of the present invention provides a kind of transformer methods of risk assessment of combination latent fault, including：
From the specific run experience of transformer station high-voltage side bus experience library extraction transformer；Specific run experience include with down toward
It is one of few：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, terminal short-circuit impact time
Number；
It is undergone according to the specific run, calculates the probability of malfunction that potential risk occurs for the transformer.
Second aspect, an embodiment of the present invention provides a kind of transformer risk assessment device of combination latent fault, including：
Extraction module, for being undergone from the specific run of transformer station high-voltage side bus experience library extraction transformer；The specific run
Experience includes at least one of：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, go out
Mouth short-circuit impact number；
First computing module for being undergone according to the specific run, calculates the event that potential risk occurs for the transformer
Hinder probability.
The third aspect, an embodiment of the present invention provides a kind of transformer risk assessment equipment of combination latent fault, including：
At least one processor, at least one processor and the computer program instructions being stored in the memory, when the meter
The method described in first aspect is realized when calculation machine program instruction is performed by the processor.
Fourth aspect, an embodiment of the present invention provides a kind of computer readable storage mediums, are stored thereon with computer journey
Sequence instructs, and the method described in first aspect is realized when the computer program instructions are executed by processor.
Transformer methods of risk assessment, device, equipment and Jie of the combination latent fault provided through the embodiment of the present invention
Matter is undergone using the specific run from transformer station high-voltage side bus experience library extraction transformer；Specific run experience include with down toward
It is one of few：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, terminal short-circuit impact time
Number；It is undergone according to the specific run, calculates the probability of malfunction that potential risk occurs for the transformer, solve transformer risk
The problem of accuracy of assessment is low improves the accuracy of transformer risk assessment.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the transformer methods of risk assessment of combination latent fault according to embodiments of the present invention；
Fig. 2 is the structure diagram of the transformer risk assessment device of combination latent fault according to embodiments of the present invention；
Fig. 3 shows the hardware configuration of the transformer risk assessment equipment of combination latent fault provided in an embodiment of the present invention
Schematic diagram.
Specific embodiment
The feature and exemplary embodiment of various aspects of the invention is described more fully below, in order to make the mesh of the present invention
, technical solution and advantage be more clearly understood, with reference to the accompanying drawings and embodiments, the present invention is further retouched in detail
It states.It should be understood that specific embodiment described herein is only used for explaining the present invention, it is not intended to limit the present invention.For ability
For field technique personnel, the present invention can be implemented in the case of some details in not needing to these details.It is right below
The description of embodiment is used for the purpose of by showing that the example of the present invention is better understood from the present invention to provide.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that including
Also there are other identical elements in the process of element, method, article or equipment.
A kind of transformer methods of risk assessment of combination latent fault is provided in the present embodiment, and Fig. 1 is according to this hair
The flow chart of the transformer methods of risk assessment of the combination latent fault of bright embodiment, as shown in Figure 1, the flow includes following step
Suddenly：
Step S101, from the specific run experience of transformer station high-voltage side bus experience library extraction transformer；Specific run experience includes
At least one of：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, terminal short-circuit punching
Hit number；
Step S102, undergoes according to specific run, and the probability of malfunction of potential risk occurs for calculating transformer.
Through the above steps, transformer may be caused to enter latent fault state from the library extraction of transformer station high-voltage side bus experience
Specific run is undergone, such as：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, outlet
Short-circuit impact number etc., and then according to the probability of malfunction of the specific run of transformer experience calculating transformer generation potential risk.
Due to considering the specific run that transformer may be caused to enter latent fault state experience, with reference to the transformer wind of above-mentioned steps
Dangerous appraisal procedure solves the problems, such as that the accuracy of transformer risk assessment is low, improves the accuracy of transformer risk assessment.
Three kinds of principal modes of specific run experience are introduced below：
1st, thunder and lightning or operating impulse voltage effect number
Often by the impact of the Intruding waves such as lightning surge in transformer in operation.Due to this kind of excessively electric
The time of pressure effect is extremely short, and single invasion wave may not be enough to transformer major insulation or minor insulation punctures, but if more
The secondary effect for bearing such surge voltage, the dielectric properties of insulating paper (plate) will be gradually reduced, and eventually lead to dielectric breakdown accident.
Used transformer is made by thunder and lightning or operating impulse voltage to those, though its all result of the test is all normal, but this
When equipment may existing security risk.Therefore, research lightning impulse voltage contributes to becoming the cumulative effect of paper oil insulation
Depressor insulation performance is rationally assessed.Experimental study shows multiple lightning impulse, and to insulation harm, there are certain products
Effect, breakdown voltage are related with thunder jig frequency number.
2nd, the time influenced more than the thermal stress of threshold values
Influence of the load level to transformer is mainly the effect of thermal stress Aging of Oil-paper Insulation in Oil.When mainly according to transformer station high-voltage side bus
Environment temperature, load level and top-oil temperature the hot(test)-spot temperature of inside transformer is estimated.
3rd, terminal short-circuit number of shocks
Terminal short-circuit is principal element when causing the transformer accident occurs.To those by fewer number short-circuit impact
Transformer, every test index is possible and without exception or winding deformation degree cannot be found by current detection means,
But the stability of usual winding construction has been destroyed at this time, if just probably drawing by stronger short-circuit impact again
Hair accident jeopardizes equipment and the safety of power grid.It if can be according to terminal short-circuit number of shocks that equipment is subjected to, short circuit current
Size assesses its health status and risk, just can timely carry out early warning, eliminate safe hidden trouble.
Above-mentioned transformer station high-voltage side bus experience library is generated and safeguards according to the status monitoring of transformer, wherein storing every
The state operation experience data of a transformer；Also, transformer station high-voltage side bus experience library can periodically delete stale data, for example, working as
When setting data life period is 12 months, deletion will be timed beyond the data of 12 months.
Optionally, in step s 102, it is undergone according to specific run, the probability of malfunction of potential risk occurs for calculating transformer
Including：It is each according to the history specific run experience from the whole transformers of transformer station high-voltage side bus experience library extraction and failure experience, statistics
The corresponding probability of malfunction that potential risk occurs of different numerical value of class specific run experience；It is passed through according to all kinds of specific runs of statistics
The corresponding probability of malfunction that potential risk occurs of different numerical value and the numerical value of the specific run experience of transformer gone through, determine transformation
The probability of malfunction of potential risk occurs for device.By above-mentioned mode, by the event for transformer occurring in history potential risk
Barrier probability is counted, and the calculation basis of the probability of malfunction of potential risk occurs as current transformer.It can step up latent
In the accuracy that the probability of malfunction of risk calculates.In other embodiments, can with usage history specific run undergo and
Failure undergoes training experience model, and use experience model divides current transformer to occur the probability of malfunction of potential risk
Class calculates.
Optionally, above-mentioned methods of risk assessment further includes the appraisal procedure of the probability of malfunction of normal risk.Such as：From transformation
Device state monitoring device obtains the state evaluation data of transformer；According to state evaluation data, normal wind occurs for calculating transformer
The probability of malfunction of danger.Above-mentioned transformer state monitoring device is using running state of transformer data, using existing state
Evaluation method carries out state evaluation, and the device that state evaluation result is updated storage.
After the probability of malfunction of probability of malfunction and potential risk of normal risk is obtained：It both can be according to normal risk
Probability of malfunction and the probability of malfunction of potential risk determine the final probability of malfunction of transformer, weighted value by the way of weighted calculation
Rule of thumb choose；Can also using the probability of malfunction of potential risk as the remark information of the probability of malfunction of normal risk or
The probability of malfunction of potential risk and the probability of malfunction of normal risk are assessed and are monitored respectively, so that maintenance personnel can be intuitive
Understand the normal risk of transformer and the probability of malfunction of potential risk.
Transformer station high-voltage side bus accuracy mainly determines by the performance of its insulation system, equipment under normal operating conditions, therefore
Barrier rate is directly related with its material aging characteristic, using ageing equipment failure model or equipment accuracy indicator-specific statistics as a result, i.e.
The failure rate result of equipment can be obtained.In the present embodiment, according to state evaluation data, normal risk occurs for calculating transformer
Using all parts of following equation calculating transformer the probability of malfunction of normal risk occurs for probability of malfunction：
P (t)=K × e-C×ISE； (1)
Wherein, K is proportionality coefficient；C is coefficient of curvature；P is that the probability of malfunction of normal risk occurs for the component t of transformer；
ISE is the state evaluation data of the component t of transformer.
Optionally, K and C is calculated according to following equations group：
Wherein, PaFor year fault rate；N is the transformer number of units to break down；N is the total number of units of transformer；I=1,
2,3 ..., k represents different classes of component；ISEiAverage value for score value bound of classifying according to i.
Specifically, in the present embodiment, the calculating process of K and C include the following steps：
1. delimit statistical regions；
2. determine statistics device type；
3. determine timing statistics；
4. state evaluation is carried out to the equipment in statistical regions；
5. analyzing evaluation result, the number of units of each score value section equipment is determined；
6. being counted to the table of equipment that statistical regions internal fault occurs, and it according to trouble unit and is occurred
State score before failure is sorted out and (can repeatedly be counted for trouble unit is more than one)；
7. according to the year rate of breakdown of formula computing device, as shown in formula (2).
8. statistical result over the years is brought into formula (3), connection, which solves equation, can obtain K and C values.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, which is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be mobile phone, calculate
Machine, server or network equipment etc.) method that performs each embodiment of the present invention.
A kind of transformer risk assessment device of combination latent fault is additionally provided in the present embodiment, and the device is for real
Existing above-described embodiment and preferred embodiment, had carried out repeating no more for explanation.As used below, term " mould
Block ", " unit " or " subelement " etc. can realize the combination of the software and/or hardware of predetermined function.Although following embodiment
Described device preferably realized with software, but the realization of the combination of hardware or software and hardware be also may be simultaneously
It is contemplated.
Fig. 2 is the structure diagram of the transformer risk assessment device of combination latent fault according to embodiments of the present invention, such as
Shown in Fig. 2, which includes：
Extraction module 21, for being undergone from the specific run of transformer station high-voltage side bus experience library extraction transformer；Specific run passes through
It goes through including at least one of：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, outlet
Short-circuit impact number；
First computing module 22, coupled to extraction module 21, for being undergone according to specific run, calculating transformer occurs latent
In the probability of malfunction of risk.
Optionally, the first computing module 22 is undergone according to specific run, and the failure that potential risk occurs for calculating transformer is general
Rate includes：According to the history specific run experience and failure experience from the whole transformers of transformer station high-voltage side bus experience library extraction, statistics
The corresponding probability of malfunction that potential risk occurs of different numerical value of all kinds of specific run experience；According to all kinds of specific runs of statistics
The numerical value of the corresponding probability of malfunction that potential risk occurs of different numerical value of experience and the specific run experience of transformer, determines to become
The probability of malfunction of potential risk occurs for depressor.
Optionally, device further includes：Acquisition module, the state for obtaining transformer from transformer state monitoring device are commented
Valence mumber evidence；Second computing module, coupled to acquisition module, for according to state evaluation data, normal wind to occur for calculating transformer
The probability of malfunction of danger.
Optionally, according to state evaluation data, calculating transformer the probability of malfunction of normal risk occurs for the second computing module
Including：The probability of malfunction of normal risk occurs using all parts of following equation calculating transformer：
P (t)=K × e-C×ISE；
Wherein, K is proportionality coefficient；C is coefficient of curvature；P is that the probability of malfunction of normal risk occurs for the component t of transformer；
ISE is the state evaluation data of the component t of transformer.
Optionally, K and C is calculated according to following equations group：
Wherein, PaFor year fault rate；N is the transformer number of units to break down；N is the total number of units of transformer；I=1,
2,3 ..., k represents different classes of component；ISEiAverage value for score value bound of classifying according to i.
It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong
In the following manner realization is crossed, but not limited to this：Above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned module is respectively positioned at more
In a processor.
In addition, the transformer methods of risk assessment with reference to the combination latent fault of Fig. 1 embodiment of the present invention described can be with
It is realized by the transformer risk assessment equipment with reference to latent fault.Fig. 3 shows that combination provided in an embodiment of the present invention is hidden
The hardware architecture diagram of the transformer risk assessment equipment of failure.
Transformer risk assessment equipment with reference to latent fault can include processor 31 and be stored with computer program
The memory 32 of instruction.
Specifically, above-mentioned processor 31 can include central processing unit (CPU) or specific integrated circuit
It (Application Specific Integrated Circuit, ASIC) or may be configured to implement implementation of the present invention
One or more integrated circuits of example.
Memory 32 can include the mass storage for data or instruction.For example it is unrestricted, memory
32 may include hard disk drive (Hard Disk Drive, HDD), floppy disk, flash memory, CD, magneto-optic disk, tape or logical
With the combination of universal serial bus (Universal Serial Bus, USB) driver or two or more the above.It is closing
In the case of suitable, memory 32 may include can be removed or the medium of non-removable (or fixed).In a suitable case, memory
32 can be inside or outside data processing equipment.In a particular embodiment, memory 32 is non-volatile solid state memory.
In specific embodiment, memory 32 includes read-only memory (ROM).In a suitable case, which can be masked edit program
ROM, programming ROM (PROM), erasable PROM (EPROM), electric erasable PROM (EEPROM), electrically-alterable ROM (EAROM)
Or the combination of flash memory or two or more the above.
Processor 31 is by reading and performing the computer program instructions stored in memory 32, to realize above-described embodiment
In any one combine latent fault transformer methods of risk assessment.
In one example, communication interface 33 and bus be may also include with reference to the transformer risk assessment equipment of latent fault
30.Wherein, as shown in figure 3, processor 31, memory 32, communication interface 33 are connected by bus 30 and completed mutual lead to
Letter.
Communication interface 33 is mainly used for realizing in the embodiment of the present invention between each module, device, unit and/or equipment
Communication.
Bus 30 includes hardware, software or both, will combine latent fault transformer risk assessment equipment component that
This is coupled together.For example unrestricted, bus may include accelerated graphics port (AGP) or other graphics bus, enhancing
Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), super transmission (HT) interconnection, Industry Standard Architecture (ISA) bus, nothing
Limit bandwidth interconnection, low pin count (LPC) bus, memory bus, micro- channel architecture (MCA) bus, peripheral component interconnection (PCI)
Bus, PCI-Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association part
(VLB) combination of bus or other suitable buses or two or more the above.In a suitable case, bus 30
It may include one or more buses.Although specific bus has been described and illustrated in the embodiment of the present invention, the present invention considers any
Suitable bus or interconnection.
The transformer risk assessment equipment for combining latent fault can be performed the present invention and implemented based on the data got
The transformer methods of risk assessment of combination latent fault in example, so as to fulfill the change of the combination latent fault of Fig. 1 descriptions is combined
Depressor methods of risk assessment.
In addition, with reference to the transformer methods of risk assessment of the combination latent fault in above-described embodiment, the embodiment of the present invention
A kind of computer readable storage medium can be provided to realize.Computer program is stored on the computer readable storage medium to refer to
It enables；The computer program instructions realized when being executed by processor in above-described embodiment any one combine latent fault transformation
Device methods of risk assessment.
It should be clear that the invention is not limited in specific configuration described above and shown in figure and processing.
For brevity, it is omitted here the detailed description to known method.In the above-described embodiments, several tools have been described and illustrated
The step of body, is as example.But procedure of the invention is not limited to described and illustrated specific steps, this field
Technical staff can be variously modified, modification and addition or suitable between changing the step after the spirit for understanding the present invention
Sequence.
Above structural frames functional block shown in figure can be implemented as hardware, software, firmware or combination thereof.When
When realizing in hardware, electronic circuit, application-specific integrated circuit (ASIC), appropriate firmware, plug-in unit, function may, for example, be
Card etc..When being realized with software mode, element of the invention is used to perform the program or code segment of required task.Journey
Sequence either code segment can be stored in machine readable media or the data-signal by being carried in carrier wave in transmission medium or
Person's communication links are sent." machine readable media " can include being capable of any medium of storage or transmission information.It is machine readable
The example of medium include electronic circuit, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disk, CD-ROM,
CD, hard disk, fiber medium, radio frequency (RF) link, etc..Code segment can be via the calculating of internet, Intranet etc.
Machine network is downloaded.
It should also be noted that, the exemplary embodiment referred in the present invention, is retouched based on a series of step or device
State certain methods or system.But the present invention is not limited to the sequence of above-mentioned steps, that is to say, that can be according in embodiment
The sequence referred to performs step, may also be distinct from that the sequence in embodiment or several steps are performed simultaneously.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of transformer methods of risk assessment of combination latent fault, which is characterized in that including：
From the specific run experience of transformer station high-voltage side bus experience library extraction transformer；Specific run experience include it is following at least it
One：Thunder and lightning or operating impulse voltage act on number, the time that the thermal stress more than threshold values influences, terminal short-circuit number of shocks；
It is undergone according to the specific run, calculates the probability of malfunction that potential risk occurs for the transformer.
2. according to the method described in claim 1, it is characterized in that, according to specific run experience, the transformer is calculated
The probability of malfunction that potential risk occurs includes：
According to the history specific run experience and failure experience from the whole transformers of transformer station high-voltage side bus experience library extraction, statistics
The corresponding probability of malfunction that potential risk occurs of different numerical value of all kinds of specific run experience；
The corresponding probability of malfunction that potential risk occurs of different numerical value undergone according to all kinds of specific runs of statistics and the change
The numerical value of the specific run experience of depressor, determines that the probability of malfunction of potential risk occurs for the transformer.
3. according to the method described in claim 1, it is characterized in that, the method further includes：
The state evaluation data of the transformer are obtained from transformer state monitoring device；
According to the state evaluation data, the probability of malfunction that normal risk occurs for the transformer is calculated.
4. according to the method described in claim 3, it is characterized in that, according to the state evaluation data, the transformer is calculated
The probability of malfunction that normal risk occurs includes：Normal risk occurs for all parts that the transformer is calculated using following equation
Probability of malfunction：
P (t)=K × e-C×ISE；
Wherein, K is proportionality coefficient；C is coefficient of curvature；P is that the probability of malfunction of normal risk occurs for the component t of the transformer；
ISE is the state evaluation data of the component t of the transformer.
5. according to the method described in claim 4, it is characterized in that, K and C are calculated according to following equations group：
Wherein, PaFor year fault rate；N is the transformer number of units to break down；N is the total number of units of transformer；I=1,2,
3 ..., k represents different classes of component；ISEiAverage value for score value bound of classifying according to i.
6. a kind of transformer risk assessment device of combination latent fault, which is characterized in that including：
Extraction module, for being undergone from the specific run of transformer station high-voltage side bus experience library extraction transformer；The specific run experience
Including at least one of：Thunder and lightning or operating impulse voltage effect number, more than threshold values thermal stress influence time, outlet it is short
Road number of shocks；
First computing module, for being undergone according to the specific run, the failure for calculating the transformer generation potential risk is general
Rate.
7. device according to claim 6, which is characterized in that described device further includes：
Acquisition module, for obtaining the state evaluation data of the transformer from transformer state monitoring device；
Second computing module, for according to the state evaluation data, the failure for calculating the transformer generation normal risk to be general
Rate.
8. a kind of transformer risk assessment equipment of combination latent fault, which is characterized in that including：At least one processor, extremely
A few memory and the computer program instructions being stored in the memory, when the computer program instructions are described
The method as described in any one of claim 1-5 is realized when processor performs.
9. a kind of computer readable storage medium, is stored thereon with computer program instructions, which is characterized in that when the computer
The method as described in any one of claim 1-5 is realized when program instruction is executed by processor.
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| CN201810123688.0A CN108205611A (en) | 2018-02-07 | 2018-02-07 | With reference to transformer methods of risk assessment, device, equipment and the medium of latent fault |
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| CN106295216A (en) * | 2016-08-18 | 2017-01-04 | 国网河北省电力公司电力科学研究院 | A kind of high-power transformer Damage by Short Circuit risk probability appraisal procedure |
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