CN110346677A - The determination method and apparatus and aging equipment of state in cable ageing process - Google Patents
The determination method and apparatus and aging equipment of state in cable ageing process Download PDFInfo
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- CN110346677A CN110346677A CN201910637735.8A CN201910637735A CN110346677A CN 110346677 A CN110346677 A CN 110346677A CN 201910637735 A CN201910637735 A CN 201910637735A CN 110346677 A CN110346677 A CN 110346677A
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- leakage current
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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
- G01R31/003—Environmental or reliability tests
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Testing Relating To Insulation (AREA)
Abstract
This application discloses the determination method and apparatus and aging equipment of state in a kind of cable ageing process.This method comprises: the predetermined point of time in ageing process, obtain the Leakage Current in the cable insulation in cable ageing process, wherein, Leakage Current is obtained by the electrode detector being inserted into cable insulation, electrode is inserted into cable insulation by the hole that cable insulation is accomplished fluently in advance, and the outer conducting layer of the metal screen layer and cable of electrode and cable does not contact；Determine cable insulation in the state of predetermined point of time according to Leakage Current.The technical issues of by the application, solving in the related technology that state monitoring method cannot really reflect the ageing state of cable insulation under actual condition, and not can truly reflect the whole ageing state of cable insulation in cable ageing process.
Description
Technical field
This application involves cable agings to monitor field, in particular to a kind of determination of state in cable ageing process
Method and apparatus and aging equipment.
Background technique
It is old as caused by the running environment and machinery, pollution etc. such as electricity, heat, chemistry with the increase of the cable operation time limit
Change accident becomes the main reason for cable power outage.The water tree and electric tree aging of cable operational process are cable natural aging events
Power outage caused by most important form is destroyed with external force such as machinery in barrier is compared, and power outage caused by cable aging is more
With harmfulness.Meanwhile in cable ageing process ageing state measurement with assessment to the operating status and system of cable insulation
Safety have very important meaning；The ageing state assessment of cable integral insulation is exhausted for evaluation cable after accelerated ageing
The comprehensive performance of edge, the remaining life for assessing cable also have very important effect.
Existing cable senile experiment method is mostly the aging under single factors effect, meanwhile, the aging shape of cable insulation
It is to sample to carry out after cable aging that state characterization is also mostly, cannot be surveyed in real time to the state parameter in cable ageing process
Amount.
And often influenced by the composite factors such as electricity, heat, environment in cable actual motion, it is single under the conditions of cable aging
It can only reflect the ageing state of cable under specific circumstances, can not really reflect the aging shape of cable insulation under actual condition
State.
And current state monitoring method is mostly to measure and characterize to after cable insulation slice, it can only be to a certain degree
The aging characteristics of cable insulation, not can truly reflect the entirety of cable insulation in cable ageing process under upper reflection certain condition
Ageing state.
It cannot really reflect the ageing state of cable insulation under actual condition for state monitoring method in the related technology, with
And the technical issues of not can truly reflect the whole ageing state of cable insulation in cable ageing process, not yet propose have at present
The solution of effect.
Summary of the invention
The application provides the determination method and apparatus and aging equipment of state in a kind of cable ageing process, to solve phase
State monitoring method cannot really reflect the ageing state of cable insulation under actual condition in the technology of pass, and cannot be truly anti-
The technical issues of reflecting the whole ageing state of cable insulation in cable ageing process.
According to the one aspect of the application, a kind of determination method of state in cable ageing process is provided.This method packet
Include: the predetermined point of time in ageing process obtains the Leakage Current in the cable insulation in cable ageing process, wherein
The Leakage Current is obtained by the electrode detector being inserted into the cable insulation, and the electrode passes through the cable
The cable insulation, the metal screen layer and the electricity of the electrode and the cable are inserted into the hole that insulating layer is accomplished fluently in advance
The outer conducting layer of cable does not contact；Determine the cable insulation in the state of the predetermined point of time according to the Leakage Current.
Optionally, obtaining the Leakage Current includes: to obtain the Leakage Current by ammeter, wherein high voltage power supply
High-voltage end access the electrode, the cable center conductor passes through ammeter A1 ground connection.
Optionally, the high voltage power supply is one of the following: direct current, exchange, the pulse power.
Optionally, the cable is placed in ageing oven, and the electrode is inserted in place in the ageing oven
In the cable insulation.
Optionally, the ageing oven is used to carry out the aging of at least one of: aging, hot factor under electric factor
Under aging, the aging under hydric factor, the aging under chemical factor.
Optionally, the method also includes: after the completion of aging, Xiang Suoshu cable insulation applies polarizing voltage, and protects
Hold scheduled duration；Leakage Current is measured while applying the polarizing voltage；After the scheduled duration, stop described in application
Polarizing voltage measures the voltage between the center conductor of the cable and the metal screen layer of the cable；Measure the cable
The depolarization current of insulating layer；According to while applying the polarizing voltage measurement obtain Leakage Current, the voltage and institute
State the ageing state that depolarization current assesses the cable insulation.
According to the another aspect of the application, a kind of determining device of state in cable ageing process is provided.The device packet
Include: acquiring unit obtains letting out in the cable insulation in cable ageing process for the predetermined point of time in ageing process
Reveal electric current, wherein the Leakage Current is obtained by the electrode detector being inserted into the cable insulation, the electrode
The cable insulation, the metallic shield of the electrode and the cable are inserted by the hole that the cable insulation is accomplished fluently in advance
The outer conducting layer of layer and the cable does not contact；Determination unit, for determining the cable insulation according to the Leakage Current
State of the layer in the predetermined point of time.
According to the another aspect of the application, a kind of aging equipment is provided.The aging equipment includes: ageing oven, for putting
Cable to be aging is set, and aging process is carried out to the cable to be aging being placed；Electrode is set to the ageing oven
In cable cable insulation in, and the outer conducting layer of the metal screen layer and the cable of the electrode and the cable
It does not contact；High voltage power supply, the high-voltage end of the high voltage power supply access the electrode, the low-pressure end ground connection of the high tension voltage；Electricity
Cable center conductor, the cable center conductor are grounded by ammeter；The ammeter, for measuring Leakage Current, wherein institute
Leakage Current is stated for determining the cable insulation in the state of the predetermined point of time.
According to the another aspect of the application, a kind of storage medium is provided, the storage medium includes the program of storage,
In, described program executes the determination method of state in cable ageing process described in above-mentioned any one.
According to the another aspect of the application, a kind of processor is provided, the processor is for running program, wherein institute
State the determination method that state in cable ageing process described in above-mentioned any one is executed when program operation.
The determination method of state in cable ageing process provided by the embodiments of the present application, by predetermined in ageing process
Time point obtains the Leakage Current in the cable insulation in cable ageing process, wherein the Leakage Current is to pass through insertion
It is obtained to the electrode detector in the cable insulation, the hole insertion that the electrode is accomplished fluently in advance by the cable insulation
The metal screen layer of the cable insulation, the electrode and the cable and the outer conducting layer of the cable do not contact；Root
The cable insulation is determined in the state of the predetermined point of time according to the Leakage Current, solves state prison in the related technology
Survey method cannot really reflect the ageing state of cable insulation under actual condition, and not can truly reflect cable ageing process
The technical issues of whole ageing state of middle cable insulation.
That is, in cable ageing process provided by the embodiment of the present application state determination method, realize electricity, heat,
Aging is carried out to cable insulation under the effects of water or chemistry, and monitors the monolithic of cable insulation while cable insulation aging
State, to characterize and assess the technical effect of the synthesis ageing state of cable insulation.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, the schematic reality of the application
Example and its explanation are applied for explaining the application, is not constituted an undue limitation on the present application.In the accompanying drawings:
Fig. 1 is the flow chart according to the determination method of state in cable ageing process provided by the embodiments of the present application；
Fig. 2 is according to the optional schematic diagram provided by the embodiments of the present application to the multifactor aging of cable and status monitoring；
Fig. 3 is the schematic diagram according to the determining device of state in cable ageing process provided by the embodiments of the present application.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
According to an embodiment of the present application, a kind of determination method of state in cable ageing process is provided.
Fig. 1 is the flow chart of the determination method of state in the cable ageing process according to the embodiment of the present application.Such as Fig. 1 institute
Show, method includes the following steps:
Step S102, the predetermined point of time in ageing process obtain in the cable insulation in cable ageing process
Leakage Current, wherein the Leakage Current is obtained by the electrode detector being inserted into the cable insulation, the electricity
The cable insulation, the metal screen of the electrode and the cable are inserted by the hole that the cable insulation is accomplished fluently in advance in pole
The outer conducting layer for covering layer and the cable does not contact；
Step S104 determines the cable insulation in the state of the predetermined point of time according to the Leakage Current.
The determination method of state in cable ageing process provided by the embodiments of the present application, by predetermined in ageing process
Time point obtains the Leakage Current in the cable insulation in cable ageing process, wherein the Leakage Current is to pass through insertion
It is obtained to the electrode detector in the cable insulation, the hole insertion that the electrode is accomplished fluently in advance by the cable insulation
The metal screen layer of the cable insulation, the electrode and the cable and the outer conducting layer of the cable do not contact；Root
The cable insulation is determined in the state of the predetermined point of time according to the Leakage Current, solves state prison in the related technology
Survey method cannot really reflect the ageing state of cable insulation under actual condition, and not can truly reflect cable ageing process
The technical issues of whole ageing state of middle cable insulation.
That is, in cable ageing process provided by the embodiment of the present application state determination method, realize electricity, heat,
Aging is carried out to cable insulation under the effects of water or chemistry, and monitors the monolithic of cable insulation while cable insulation aging
State, to characterize and assess the technical effect of the synthesis ageing state of cable insulation.
It should be understood that appeal ageing process can be the aging of at least one of: aging under electric factor, it is hot because
Aging, the aging under hydric factor, the aging under chemical factor under element.
Specifically, above-mentioned technical effect can be achieved as follows: the cable is placed on degradation
In case, the electrode is inserted in place the cable insulation in the ageing oven, and the ageing oven be used for into
The aging of row at least one of: the aging under electric factor, the aging under hot factor, the aging under hydric factor, under chemical factor
Aging.
Optionally, it is let out described in acquisition in the determination method of state in cable ageing process provided by the embodiments of the present application
Revealing electric current includes: to obtain the Leakage Current by ammeter, wherein the high-voltage end of high voltage power supply accesses the electrode, described
Cable center conductor is grounded by the ammeter A1, wherein the high voltage power supply is one of the following: direct current, exchange, pulse electricity
Source.
In another alternative embodiment, in cable ageing process provided by the embodiment of the present application state determination side
Method further include: after the completion of aging, Xiang Suoshu cable insulation applies polarizing voltage, and keeps scheduled duration；Described in application
Leakage Current is measured while polarizing voltage；After the scheduled duration, stops applying the polarizing voltage, measure the cable
Center conductor and the cable metal screen layer between voltage；Measure the depolarization current of the cable insulation；Root
According to while applying the polarizing voltage, measurement obtains Leakage Current, the voltage and the depolarization current assess the electricity
The ageing state of cable insulating layer.
That is, in cable ageing process provided by the embodiment of the present application state determination method, realize electricity, heat,
Aging is carried out to cable insulation under the effects of water or chemistry, and monitors the monolithic of cable insulation while cable insulation aging
It is old with the synthesis for characterizing and assessing cable insulation using the dielectric property of a variety of methods measurement cable insulation after state and aging
The technical effect of change state.
It explains below with reference to another embodiment to the present invention.
It should be understood that label 1 shown in Fig. 2 is senile experiment case, label 2 shown in Fig. 2 is cable insulation
Layer, label 3 shown in Fig. 2 are cable center conductor, and label 4 shown in Fig. 2 is the metal screen layer of cable, institute in Fig. 2
The label 5 shown is electrode, and label 6 shown in Fig. 2 is DC power supply.
Wherein, above-mentioned senile experiment case can carry out cable insulation under the multifactor effects such as electricity, heat, water or chemistry acceleration it is old
Change experiment；Above-mentioned electrode passes through the aperture accomplished fluently in advance and penetrates cable insulation, the metal screen layer and cable of electrode and cable
Outer semiconducting layer does not contact.
In an optional example, above-mentioned electrode shape is needle-shaped.
And in accelerated aging tests, the high-voltage end of high voltage power supply U1 accesses electrode, and cable center conductor passes through ammeter
A1 ground connection, can during real-time measurement accelerated ageing cable insulation leakage current i1.At this point, by cable ageing process
Leakage current can determine whether the real-time status of cable insulation.
It should be understood that above-mentioned high voltage power supply U1 can be direct current, exchange or the pulse power.
And in measurement experiment after the completion of cable aging, switch S5, S6 are first disconnected, closure switch S1, S4 pass through direct current
Power supply applies certain polarizing voltage to cable insulation, and is kept for a period of time, passes through ammeter A2 while applying voltage
Measure Leakage Current i2；S1 is disconnected after cable polarization again and closure switch S2 keeps certain time, is then turned off S2, is closed
S3 measures the voltage between cable center conductor and the metal screen layer of cable, i.e. recovery voltage u, while can pass through ammeter
The depolarization current i3 of A2 measurement cable insulation.
Finally, passing through the Leakage Current i2 in polarization process, recovery voltage u and depolarization current i3 in process of depolarization
Can overall merit cable insulation ageing state.
In conclusion in cable ageing process provided by the embodiment of the present application state determination method, realize to electricity
The state parameter of cable insulation is monitored while cable carries out multifactor aging, and multi-parameter is carried out to cable after aging
State measurement, and then reflect cable insulation whole ageing state technical effect.In addition, above-mentioned measurement method is simple, easily
Operation is implemented convenient for staff.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not
The sequence being same as herein executes shown or described step.
The embodiment of the present application also provides a kind of determining devices of state in cable ageing process, it should be noted that this
Apply for that the determining device of state in the cable ageing process of embodiment can be used for executing provided by the embodiment of the present application to be used for
The determination method of state in cable ageing process.Below to the determination of state in cable ageing process provided by the embodiments of the present application
Device is introduced.
Fig. 3 is the schematic diagram of the determining device of state in the cable ageing process according to the embodiment of the present application.Such as Fig. 3 institute
Show, which includes: acquiring unit 31 and determination unit 33.
Acquiring unit 31 obtains the cable insulation in cable ageing process for the predetermined point of time in ageing process
Leakage Current in layer, wherein the Leakage Current is obtained by the electrode detector being inserted into the cable insulation,
The hole insertion cable insulation that the electrode is accomplished fluently in advance by the cable insulation, the electrode and the cable
The outer conducting layer of metal screen layer and the cable does not contact.
Determination unit 33, for determining the cable insulation in the shape of the predetermined point of time according to the Leakage Current
State.
Optionally, in cable ageing process provided by the embodiments of the present application in the determining device of state, the acquisition is single
Member 31 includes: acquisition subelement, for obtaining the Leakage Current by ammeter, wherein the high-voltage end of high voltage power supply accesses
The electrode, the cable center conductor are grounded by the ammeter A1.
Optionally, in cable ageing process provided by the embodiments of the present application in the determining device of state, the high-voltage electricity
Source is one of the following: direct current, exchange, the pulse power.
Optionally, in cable ageing process provided by the embodiments of the present application in the determining device of state, the cable quilt
It is placed in ageing oven, the electrode is inserted in place the cable insulation in the ageing oven.
Optionally, in cable ageing process provided by the embodiments of the present application in the determining device of state, the aging examination
Tryoff is used to carry out the aging of at least one of: the aging under electric factor, the aging under hot factor, the aging under hydric factor,
Aging under chemical factor.
Optionally, in cable ageing process provided by the embodiments of the present application in the determining device of state, the determining dress
It sets further include: apply polarizing voltage unit, for after the completion of aging, Xiang Suoshu cable insulation to apply polarizing voltage, and protects
Hold scheduled duration；First measuring unit, for measuring Leakage Current while applying the polarizing voltage；Second measurement is single
Member applies the polarizing voltage for stopping after the scheduled duration, measures the center conductor and the cable of the cable
Metal screen layer between voltage；Third measuring unit, for measuring the depolarization current of the cable insulation；Assessment is single
Member, for basis, measurement obtains Leakage Current, the voltage and the depolarization current while applying the polarizing voltage
Assess the ageing state of the cable insulation.
The determining device of state in cable ageing process provided by the embodiments of the present application, by acquiring unit 31 in aging
Predetermined point of time in journey obtains the Leakage Current in the cable insulation in cable ageing process, wherein the Leakage Current
It is to be obtained by the electrode detector being inserted into the cable insulation, the electrode is beaten in advance by the cable insulation
The cable insulation, the outer conducting layer of the metal screen layer and the cable of the electrode and the cable are inserted into good hole
It does not contact；Determination unit 33 determines the cable insulation in the state of the predetermined point of time, solution according to the Leakage Current
State monitoring apparatus in the related technology of having determined cannot really reflect the ageing state of cable insulation under actual condition, and cannot be true
The technical issues of reflecting the whole ageing state of cable insulation in cable ageing process on the spot.
That is, in cable ageing process provided by the embodiment of the present application state determining device, realize electricity, heat,
Aging is carried out to cable insulation under the effects of water or chemistry, and monitors the monolithic of cable insulation while cable insulation aging
State, to characterize and assess the technical effect of the synthesis ageing state of cable insulation.
The determining device of state includes processor and memory in the cable ageing process, above-mentioned acquiring unit 31 and really
Order member 33 etc. stores in memory as program unit, executes above procedure list stored in memory by processor
Member realizes corresponding function.
Include kernel in processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be set one
Or more, by adjusting kernel parameter come electricity, heat, water or the effects of chemistry under aging is carried out to cable insulation, and in cable
The integrality of cable insulation is monitored while insulation ag(e)ing, to characterize and assess the technology of the synthesis ageing state of cable insulation
Effect.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, if read-only memory (ROM) or flash memory (flash RAM), memory include that at least one is deposited
Store up chip.
The embodiment of the present application also provides a kind of aging equipments, it should be noted that the aging equipment of the embodiment of the present application
It can be used for executing electricity involved in the determination method provided by the embodiment of the present application for state in cable ageing process
Cable aging process.Aging equipment provided by the embodiments of the present application is introduced below.
Specifically, the aging equipment includes: ageing oven, electrode, high voltage power supply, cable center conductor and ammeter.
Ageing oven carries out aging process for placing cable to be aging, and to the cable to be aging being placed；
Electrode is set in the cable insulation of the cable in the ageing oven, and the electrode and the cable
Metal screen layer and the outer conducting layer of the cable do not contact；
High voltage power supply, the high-voltage end of the high voltage power supply access the electrode, the low-pressure end ground connection of the high tension voltage；
Cable center conductor, the cable center conductor are grounded by ammeter；
The ammeter, for measuring Leakage Current, wherein the Leakage Current is for determining that the cable insulation exists
The state of the predetermined point of time.
Aging equipment provided by the embodiments of the present application, place cable to be aging by ageing oven, and to be placed to
The cable of aging carries out aging process；Electrode is set in the cable insulation of the cable in the ageing oven, and described
The outer conducting layer of the metal screen layer and the cable of electrode and the cable does not contact；The high-voltage end of high voltage power supply accesses institute
State electrode, the low-pressure end ground connection of the high tension voltage；Cable center conductor is grounded by ammeter；And it is let out with ammeter measurement
Reveal electric current, wherein the Leakage Current is for determining that the cable insulation in the state of the predetermined point of time, solves phase
State monitoring apparatus cannot really reflect the ageing state of cable insulation under actual condition in the technology of pass, and cannot be truly anti-
The technical issues of reflecting the whole ageing state of cable insulation in cable ageing process.
That is, aging equipment provided by the embodiment of the present application, to electricity under realizing electricity, heat, water or the chemistry the effects of
Cable insulation carries out aging, and the integrality of cable insulation is monitored while cable insulation aging, to characterize and assess cable
The technical effect of the synthesis ageing state of insulation.
The embodiment of the invention provides a kind of storage mediums, are stored thereon with program, real when which is executed by processor
The determination method of state in the existing cable ageing process.
The embodiment of the invention provides a kind of processor, the processor is for running program, wherein described program operation
The determination method of state in cable ageing process described in Shi Zhihang.
The embodiment of the invention provides a kind of equipment, equipment include processor, memory and storage on a memory and can
The program run on a processor, processor perform the steps of the predetermined point of time in ageing process when executing program, obtain
Take the Leakage Current in the cable insulation in cable ageing process, wherein the Leakage Current is by being inserted into the electricity
What the electrode detector in cable insulating layer obtained, the electrode is inserted into the cable by the hole that the cable insulation is accomplished fluently in advance
The metal screen layer of insulating layer, the electrode and the cable and the outer conducting layer of the cable do not contact；It is let out according to described
Dew electric current determines the cable insulation in the state of the predetermined point of time.
Optionally, obtaining the Leakage Current includes: to obtain the Leakage Current by ammeter, wherein high voltage power supply
High-voltage end access the electrode, the cable center conductor passes through ammeter A1 ground connection.
Optionally, the high voltage power supply is one of the following: direct current, exchange, the pulse power.
Optionally, the cable is placed in ageing oven, and the electrode is inserted in place in the ageing oven
In the cable insulation.
Optionally, the ageing oven is used to carry out the aging of at least one of: aging, hot factor under electric factor
Under aging, the aging under hydric factor, the aging under chemical factor.
Optionally, the method also includes: after the completion of aging, Xiang Suoshu cable insulation applies polarizing voltage, and protects
Hold scheduled duration；Leakage Current is measured while applying the polarizing voltage；After the scheduled duration, stop described in application
Polarizing voltage measures the voltage between the center conductor of the cable and the metal screen layer of the cable；Measure the cable
The depolarization current of insulating layer；According to while applying the polarizing voltage measurement obtain Leakage Current, the voltage and institute
State the ageing state that depolarization current assesses the cable insulation.Equipment herein can be server, PC, PAD, mobile phone
Deng.
Present invention also provides a kind of computer program products, when executing on data processing equipment, are adapted for carrying out just
The program of beginningization there are as below methods step: the predetermined point of time in ageing process, the cable obtained in cable ageing process are exhausted
Leakage Current in edge layer, wherein the Leakage Current is obtained by the electrode detector being inserted into the cable insulation
, the electrode is inserted into the cable insulation, the electrode and the electricity by the hole that the cable insulation is accomplished fluently in advance
The outer conducting layer of the metal screen layer of cable and the cable does not contact；The cable insulation is determined according to the Leakage Current
In the state of the predetermined point of time.
Optionally, obtaining the Leakage Current includes: to obtain the Leakage Current by ammeter, wherein high voltage power supply
High-voltage end access the electrode, the cable center conductor passes through ammeter A1 ground connection.
Optionally, the high voltage power supply is one of the following: direct current, exchange, the pulse power.
Optionally, the cable is placed in ageing oven, and the electrode is inserted in place in the ageing oven
In the cable insulation.
Optionally, the ageing oven is used to carry out the aging of at least one of: aging, hot factor under electric factor
Under aging, the aging under hydric factor, the aging under chemical factor.
Optionally, the method also includes: after the completion of aging, Xiang Suoshu cable insulation applies polarizing voltage, and protects
Hold scheduled duration；Leakage Current is measured while applying the polarizing voltage；After the scheduled duration, stop described in application
Polarizing voltage measures the voltage between the center conductor of the cable and the metal screen layer of the cable；Measure the cable
The depolarization current of insulating layer；According to while applying the polarizing voltage measurement obtain Leakage Current, the voltage and institute
State the ageing state that depolarization current assesses the cable insulation.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/
Or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable Jie
The example of matter.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, commodity or the equipment that include a series of elements not only include those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including element
There is also other identical elements in process, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can provide as method, system or computer program product.
Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the application
Form.It is deposited moreover, the application can be used to can be used in the computer that one or more wherein includes computer usable program code
The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
Formula.
The above is only embodiments herein, are not intended to limit this application.To those skilled in the art,
Various changes and changes are possible in this application.It is all within the spirit and principles of the present application made by any modification, equivalent replacement,
Improve etc., it should be included within the scope of the claims of this application.
Claims (10)
1. a kind of determination method of state in cable ageing process characterized by comprising
Predetermined point of time in ageing process obtains the Leakage Current in the cable insulation in cable ageing process, wherein
The Leakage Current is obtained by the electrode detector being inserted into the cable insulation, and the electrode passes through the cable
The cable insulation, the metal screen layer and the electricity of the electrode and the cable are inserted into the hole that insulating layer is accomplished fluently in advance
The outer conducting layer of cable does not contact；
Determine the cable insulation in the state of the predetermined point of time according to the Leakage Current.
2. the method according to claim 1, wherein obtaining the Leakage Current and including:
The Leakage Current is obtained by ammeter, wherein the high-voltage end of high voltage power supply accesses the electrode, the cable center
Conductor is grounded by the ammeter A1.
3. according to the method described in claim 2, it is characterized in that, the high voltage power supply is one of the following: direct current, exchange, arteries and veins
Rush power supply.
4. the method according to claim 1, wherein the cable is placed in ageing oven, the electricity
Pole is inserted in place the cable insulation in the ageing oven.
5. according to the method described in claim 5, it is characterized in that, the ageing oven is for carrying out at least one of
Aging: the aging under electric factor, the aging under hot factor, the aging under hydric factor, the aging under chemical factor.
6. according to claim 1 to any one of 5 method, which is characterized in that the method also includes:
After the completion of aging, Xiang Suoshu cable insulation applies polarizing voltage, and keeps scheduled duration；
Leakage Current is measured while applying the polarizing voltage；
After the scheduled duration, stop applying the polarizing voltage, measures the center conductor and the cable of the cable
Voltage between metal screen layer；
Measure the depolarization current of the cable insulation；
According to while applying the polarizing voltage measurement obtain Leakage Current, the voltage and the depolarization current assessment
The ageing state of the cable insulation.
7. the determining device of state in a kind of cable ageing process characterized by comprising
Acquiring unit obtains in the cable insulation in cable ageing process for the predetermined point of time in ageing process
Leakage Current, wherein the Leakage Current is obtained by the electrode detector being inserted into the cable insulation, the electricity
The cable insulation, the metal screen of the electrode and the cable are inserted by the hole that the cable insulation is accomplished fluently in advance in pole
The outer conducting layer for covering layer and the cable does not contact；
Determination unit, for determining the cable insulation in the state of the predetermined point of time according to the Leakage Current.
8. a kind of aging equipment characterized by comprising
Ageing oven carries out aging process for placing cable to be aging, and to the cable to be aging being placed；
Electrode is set in the cable insulation of the cable in the ageing oven, and the gold of the electrode and the cable
The outer conducting layer for belonging to shielded layer and the cable does not contact；
High voltage power supply, the high-voltage end of the high voltage power supply access the electrode, the low-pressure end ground connection of the high tension voltage；
Cable center conductor, the cable center conductor are grounded by ammeter；
The ammeter, for measuring Leakage Current, wherein the Leakage Current is for determining the cable insulation described
The state of predetermined point of time.
9. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein described program right of execution
Benefit require any one of 1 to 6 described in cable ageing process state determination method.
10. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 6 described in cable ageing process state determination method.
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| CN115840160A (en) * | 2023-02-14 | 2023-03-24 | 知鱼智联科技股份有限公司 | Active intelligent monitoring system and method for street lamp leakage in park |
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