CN107728017A - Isolator detecting method is run under a kind of extreme climate environment - Google Patents
Isolator detecting method is run under a kind of extreme climate environment Download PDFInfo
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- CN107728017A CN107728017A CN201710839766.2A CN201710839766A CN107728017A CN 107728017 A CN107728017 A CN 107728017A CN 201710839766 A CN201710839766 A CN 201710839766A CN 107728017 A CN107728017 A CN 107728017A
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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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1245—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of line insulators or spacers, e.g. ceramic overhead line cap insulators; of insulators in HV bushings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Insulators (AREA)
Abstract
The present invention relates to a kind of operation isolator detecting method under extreme climate environment, including：(1) the sub- extreme climate environment operation of analog insulation；(2) isolator material characteristic is tested：Deformation analysis is carried out to glass insulator, porcelain insulator surface is worn and deformation analysis, composite insulator is deformed, torn, abrasion condition analysis, abrasion detection is carried out to all insulator ends or gold utensil junction simultaneously, the changing value of different wind direction angle isolator material characteristics is recorded respectively, counts its maximum；(3) insulator industrial frequency withstand voltage characteristic is detected.Present invention can apply to the detection of insulator material property and industrial frequency withstand voltage characteristic under extreme climate environment, observed by long-term accumulated, the mechanism that extreme climate environment influences on Insulators Used can be studied, foundation is provided to be adapted to the manufacture of the insulator of extreme climate environment and type selecting simultaneously, ensure that the stable operation of transmission line safety.
Description
Technical field
The present invention relates to the detection technique field of insulator, and in particular to runs insulator under a kind of extreme climate environment
Detection method, suitable for the extreme environments such as high wind, sand and dust, the big temperature difference, arid to operation isolator material characteristic, power frequency
Voltage endurance etc. carries out comprehensive detection.
Background technology
Xinjiang is located in NORTHWEST CHINA territory, is influenceed to influence with subtropics weather system by west wind air-flow band, sudden dust storm
Disaster, the frequency of strong chromatic number, the number that causes disaster are obvious, and day and night temperature is big.With the reality of global energy internet great development strategy
Apply, be also on the increase for the demand of high voltage transmission line.
Infringement of the high wind dirt weather to transmission line of electricity, except big wind-induced askew bar, the frame caused by bar and broken string etc. that falls
Outside empty transmission line of electricity power-off fault, as high wind brings insulator breakdown, including the junction abrasion of gold utensil even to fall string
Etc. accident.Engineering in practice, as caused by high wind dirt and causes the type of the failure of transmission line of electricity mainly to have：Insulator umbrella
Fracture, gold utensil abrasion etc..
At present, to extreme environment operation transmission line of electricity operation detection, gold utensil, wire is concentrated mainly on, insulator is ground
Study carefully research that is less, and not carrying out similar Xinjiang extreme environment simultaneously, it is more to have studied humiture, rainy day to the shadow of insulator
Ring, and be partial to detect circuit zero resistance insulator or Faulty insulator.
The content of the invention
The defects of in order to overcome prior art and unilateral, it is an object of the invention to propose a kind of efficient, reliable pole
Hold the detection method that insulator is run under climatic environment.The technical problems to be solved by the invention are：In order to realize extreme climate
The detection of insulator operation conditions under environment, the present invention provide a kind of detection method, and the detection method can realize operation insulation
The detection of sub- material property, industrial frequency withstand voltage characteristic.
To achieve these goals, the technical solution adopted in the present invention is：Insulation is run under a kind of extreme climate environment
Sub- detection method, it is characterised in that the detection method comprises the following steps：
(1) the sub- extreme climate environment operation of analog insulation：Wind speed 0-60m/s, run time 120min, sand particle size
0.1-0.25mm, wind direction angle 0。, 30。, 45。, 60。, 90。；
(2) isolator material characteristic is tested：Classified according to isolator material difference, for different classes of
Insulator feature is tested and analyzed respectively, wherein：Deformation analysis is carried out to glass insulator, porcelain insulator surface is carried out
Abrasion and deformation analysis, composite insulator is deformed, torn, abrasion condition analysis, at the same to all insulator ends or
Person's gold utensil junction carries out abrasion detection；The changing value of different wind direction angle isolator material characteristics is recorded respectively, counts it
Maximum；
(3) insulator industrial frequency withstand voltage characteristic is detected：Insulator both ends are connected by fixture with protective resistance, are connect
Enter test loop, sample both ends distance is 2cm；Flashover voltage is measured by universal meter in low-pressure side in experiment, rolled over by no-load voltage ratio
It is counted as flashover voltage；Experiment repeated measurement 3~5 times every time, removes bad data, and it is actual flashover voltage to calculate average value.
Further, in step (1), the sub- extreme climate environment operation of analog insulation of the present invention, specific implementation includes：Adopt
The wind speed and direction for realizing experiment indoor environment with wind tunnel system controls, and it is 1 m/s that it, which adjusts step value,；Using dust Control device
Realize the dust concentration control of experiment indoor environment.
Further, in step (2), the insulator deformation analysis includes insulator body amount of deflection deformation quantity and full skirt
Deformation angle, using binocular video measuring system respectively gather experiment before and experiment in insulator displacement diagram picture, establish three
Dimensional coordinate system, record the deformation angle of insulator body amount of deflection deformation quantity and full skirt under different wind direction angles.
Further, in step (2), the insulator wearing character analysis uses surface roughness, utilizes surface profile
Method measures, and is shown below：
In formula, L represents sample length, and z (x) represents the difference in height of different sample points and profile crest, and wherein L is smaller, dx
Smaller, surface roughness is finer.
Further, in step (2), the changing value for recording different wind direction angle isolator material characteristics, count
The specific method of its maximum includes：Particle 0.1-0.25mm sand is added by wind-tunnel high speed fragment position during experiment
Dirt, by adjusting blower fan air deflector, realize 0。, 30。, 45。, 60。, 90。Regulation；The predetermined air speed value of experiment is 50m/s, from 0m/
What s at the uniform velocity rose to predetermined wind speed 50% starts to test；Using 5m/s as step-length, each wind speed node is resistant to strong 3min；Raise wind
When full skirt starting of oscillation is run into during speed, now wind speed is starting of oscillation wind speed to record；Continue elevated wind speeds to the 120% of predetermined value；It is slow
Slow wind speed to all full skirts that reduce stop swinging, and now wind speed be failure of oscillation wind speed to record, measure respectively 4~5 groups of starting of oscillation wind speed with
Failure of oscillation wind speed, so that it is determined that the obvious wind speed interval value of isolator material characteristic variations, right according to the wind speed interval value of determination
Insulator applies different wind direction angles, records every group of data, and count maximum.
Further, in step (3), insulator industrial frequency withstand voltage characteristic is tested, concrete methods of realizing includes：Choosing
It is test object to take different abrasion times, the insulation coupons of different abrasion wind angles, by its proper alignment after pretreatment
On tables, then with water injector then the uniform water spray of specimen surface is tested under wet condition, sample flashover voltage is exhausted
Edge both ends are connected by fixture with protective resistance, access test loop, sample both ends distance is 2cm, in low-pressure side in experiment
Flashover voltage is measured by universal meter, flashover voltage is converted to by no-load voltage ratio, repeated measurement 3~5 times is tested every time, removes not
Good data, it is actual flashover voltage to calculate average value.
Compared with prior art, the present invention has following beneficial effect：
(1) detection of the extreme environment insulator operation conditions such as high wind, sand and dust, the big temperature difference, arid is realized, to operation
Isolator material characteristic, industrial frequency withstand voltage characteristic etc. carry out comprehensive detection, can effectively detect extreme environment to running insulator
Influence.
(2) isolator material property sort detection module is realized the detection of its material property by insulator different type, real
Situations such as situations such as existing glass insulator deformation is analyzed, and porcelain insulator surface wears, deformation analysis and composite insulator become
Situations such as shape, tear, abrasion, is analyzed, while can realize the detection of all insulator end or gold utensil junction abrasions.
(3) insulator Analysis of deformation characteristics includes the deformation angle of insulator body amount of deflection deformation quantity and full skirt, can use
Binocular video measuring system gathers the preceding displacement diagram picture with insulator in experiment of experiment respectively.The analysis of insulator wearing character can
Using surface roughness, measured using surface profiler.
Brief description of the drawings
Fig. 1 is the block diagram for the detection method that insulator is run under the extreme climate environment of the present invention.
Embodiment
For a better understanding of the present invention, with reference to the embodiment content that the present invention is furture elucidated, but the present invention
Content is not limited solely to the following examples.Those skilled in the art can make various changes or modifications to the present invention, these
The equivalent form of value is equally within the scope of claims listed by the application limit.
Fig. 1 is the FB(flow block) of the detection method of the present invention.Run under a kind of extreme climate environment provided by the invention exhausted
Edge detection method, comprises the following steps：
(1) the sub- extreme climate environment operation of analog insulation：Wind speed 0-60m/s, run time 120min, sand particle size
0.1-0.25mm, wind direction angle 0。, 30。, 45。, 60。, 90。。
(2) isolator material characteristic is tested：Deformation analysis is carried out to glass insulator, to porcelain insulator surface
Worn and deformation analysis, composite insulator is deformed, torn, abrasion condition analysis, while to all insulator ends
Portion or gold utensil junction carry out abrasion detection.The changing value of different wind direction angle isolator material characteristics is recorded respectively, is counted
Go out its maximum.
(3) insulator industrial frequency withstand voltage characteristic is detected：Insulator both ends pass through copper crocodile clip and protective resistance phase
Connect, access test loop, sample both ends distance is 2cm.Flashover voltage is measured by universal meter in low-pressure side in experiment, passed through
No-load voltage ratio is converted to flashover voltage.Experiment repeated measurement 3~5 times every time, removes bad data, and it is actual dodge to calculate average value
Network voltage.
Wherein, in step (1), the sub- extreme climate environment operation of analog insulation of the present invention, specific implementation includes：
The function of wind tunnel system is to realize the wind speed and direction control of experiment indoor environment, and its measurement range is 0-60m/
S, regulation step value are 1m/s；Wind direction angle is 0。, 30。, 45。, 60。, 90。。
The function of dust Control device is to realize the dust concentration control of experiment indoor environment, and particle diameter range is 0.1-
0.25mm。
Particle 0.1-0.25mm sand and dust are added by wind-tunnel high speed fragment position during experiment, by adjusting blower fan
Air deflector, realize 0。, 30。, 45。, 60。, 90。Regulation.The predetermined air speed value of this experiment is 50m/s, is at the uniform velocity risen to from 0m/s pre-
Determine wind speed 50% starts to test；Using 5m/s as step-length, each wind speed node is resistant to strong 3min；Run into during elevated wind speeds
During full skirt starting of oscillation, now wind speed is starting of oscillation wind speed to record；Continue elevated wind speeds to the 120% of predetermined value；Slowly reduce wind speed extremely
All full skirts stop swinging, and now wind speed is failure of oscillation wind speed to record, measures 4~5 groups of starting of oscillation wind speed and failure of oscillation wind speed respectively, from
And determine the obvious wind speed interval value of isolator material characteristic variations.According to the wind speed interval value of determination, insulator is applied not
Same wind direction angle, records every group of data, and count maximum.
Wherein, in step (2), isolator material characteristic is tested, concrete methods of realizing includes：
The insulator Analysis of deformation characteristics includes the deformation angle of insulator body amount of deflection deformation quantity and full skirt, can adopt
Gather the preceding displacement diagram picture with insulator in experiment of experiment respectively with binocular video measuring system.Three-dimensional coordinate system is established, is remembered
Record the deformation angle of insulator body amount of deflection deformation quantity and full skirt under different wind direction angles.
The insulator wearing character analysis can use surface roughness, be measured using surface profiler, as follows
Shown in formula：
In formula, L represents sample length, and z (x) represents the difference in height of different sample points and profile crest, and wherein L is smaller, dx
Smaller, surface roughness is finer.
Wherein, in step (3), insulator industrial frequency withstand voltage characteristic is tested, concrete methods of realizing includes：
Choose the different abrasion times, the insulation coupons of different abrasion wind angles are test object, the general after pretreatment
Its proper alignment is on tables, then with water injector to the uniform water spray of specimen surface.Then test under wet condition, sample
Flashover voltage insulator both ends are connected by copper crocodile clip with protective resistance, access test loop, and sample both ends distance is
2cm.Flashover voltage is measured by universal meter in low-pressure side in experiment, flashover voltage is converted to by no-load voltage ratio.Test repeatedly every time
Measurement 3~5 times, remove bad data, it is actual flashover voltage to calculate average value.
Present invention can apply to the detection of insulator material property and industrial frequency withstand voltage characteristic under extreme climate environment, leads to
Long-term cumulative observations is crossed, the mechanism that extreme climate environment influences on Insulators Used can be studied, while to be adapted to extreme climate
The insulator manufacture of environment and type selecting provide foundation, ensure that the stable operation of transmission line safety.
Present invention applicant is described in detail and described to embodiments of the invention with reference to Figure of description, still
It should be appreciated by those skilled in the art that above example is only the preferred embodiments of the invention, explanation is intended merely in detail
Reader is helped to more fully understand of the invention spiritual, and not limiting the scope of the invention, on the contrary, any be based on this hair
Any improvement or modification that bright spirit is made should all be fallen within the scope and spirit of the invention.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (6)
1. isolator detecting method is run under a kind of extreme climate environment, it is characterised in that the detection method includes following step
Suddenly：
(1) the sub- extreme climate environment operation of analog insulation：Wind speed 0-60m/s, run time 120min, sand particle size 0.1-
0.25mm, 0 °, 30 °, 45 °, 60 °, 90 ° of wind direction angle；
(2) isolator material characteristic is tested：Classified according to isolator material difference, for different classes of insulator
Feature is tested and analyzed respectively, wherein：Deformation analysis is carried out to glass insulator, porcelain insulator surface is worn and become
Conformal analysis, composite insulator is deformed, torn, abrasion condition analysis, while all insulator ends or gold utensil are connected
Meet place and carry out abrasion detection；The changing value of different wind direction angle isolator material characteristics is recorded respectively, counts its maximum；
(3) insulator industrial frequency withstand voltage characteristic is detected：Insulator both ends are connected by fixture with protective resistance, access experiment
Loop, sample both ends distance is 2cm；Flashover voltage is measured by universal meter in low-pressure side in experiment, sudden strain of a muscle is converted to by no-load voltage ratio
Network voltage；Experiment repeated measurement 3~5 times every time, removes bad data, and it is actual flashover voltage to calculate average value.
2. run isolator detecting method under a kind of extreme climate environment as claimed in claim 1, it is characterised in that：Step
(1) in, the sub- extreme climate environment operation of analog insulation of the present invention, specific implementation includes：Realized using wind tunnel system in laboratory
The wind speed and direction control of environment, it is 1m/s that it, which adjusts step value,；The dust of experiment indoor environment is realized using dust Control device
Concentration controls.
3. run isolator detecting method under a kind of extreme climate environment as claimed in claim 1, it is characterised in that：Step
(2) in, the insulator deformation analysis includes the deformation angle of insulator body amount of deflection deformation quantity and full skirt, using binocular video
Measuring system gathers the preceding displacement diagram picture with insulator in experiment of experiment respectively, establishes three-dimensional coordinate system, records different wind directions
The deformation angle of insulator body amount of deflection deformation quantity and full skirt under angle.
4. run isolator detecting method under a kind of extreme climate environment as claimed in claim 1, it is characterised in that：Step
(2) in, the insulator wearing character analysis uses surface roughness, is measured, is shown below using surface profiler：
<mrow>
<mi>X</mi>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mi>L</mi>
</mfrac>
<munderover>
<mo>&Integral;</mo>
<mn>0</mn>
<mi>L</mi>
</munderover>
<mo>|</mo>
<mi>z</mi>
<mrow>
<mo>(</mo>
<mi>x</mi>
<mo>)</mo>
</mrow>
<mo>|</mo>
<mi>d</mi>
<mi>x</mi>
</mrow>
In formula, L represents sample length, and z (x) represents the difference in height of different sample points and profile crest, and wherein L is smaller, and dx is smaller,
Surface roughness is finer.
5. run isolator detecting method under a kind of extreme climate environment as claimed in claim 1, it is characterised in that：Step
(2) in, the changing value for recording different wind direction angle isolator material characteristics, the specific method bag of its maximum is counted
Include：Particle 0.1-0.25mm sand and dust are added by wind-tunnel high speed fragment position during experiment, by adjusting blower fan air deflector,
0 ° is realized, 30 °, 45 °, 60 °, 90 ° are adjusted；The predetermined air speed value of experiment is 50m/s, and predetermined wind speed is at the uniform velocity risen to from 0m/s
50% starts to test；Using 5m/s as step-length, each wind speed node is resistant to strong 3min；Full skirt starting of oscillation is run into during elevated wind speeds
When, now wind speed is starting of oscillation wind speed to record；Continue elevated wind speeds to the 120% of predetermined value；Wind speed is slowly reduced to all full skirts
Stop swinging, now wind speed is failure of oscillation wind speed to record, measures 4~5 groups of starting of oscillation wind speed and failure of oscillation wind speed respectively, so that it is determined that insulation
The sub- obvious wind speed interval value of changes in material properties, according to the wind speed interval value of determination, apply different wind angles to insulator
Degree, records every group of data, and count maximum.
6. run isolator detecting method under a kind of extreme climate environment as claimed in claim 1, it is characterised in that：Step
(3) in, insulator industrial frequency withstand voltage characteristic is tested, concrete methods of realizing includes：Choose different abrasion times, different abrasions
The insulation coupons of wind angle are test object, and on tables then its proper alignment is used into water injector after pretreatment
To the uniform water spray of specimen surface, then test under wet condition, sample flashover voltage insulator both ends pass through fixture and protection electricity
Resistance connects, and accesses test loop, and sample both ends distance is 2cm, and flashover voltage, warp are measured by universal meter in low-pressure side in experiment
Cross no-load voltage ratio and be converted to flashover voltage, test repeated measurement 3~5 times every time, remove bad data, it is actual dodge to calculate average value
Network voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710839766.2A CN107728017A (en) | 2017-09-18 | 2017-09-18 | Isolator detecting method is run under a kind of extreme climate environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710839766.2A CN107728017A (en) | 2017-09-18 | 2017-09-18 | Isolator detecting method is run under a kind of extreme climate environment |
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| CN107728017A true CN107728017A (en) | 2018-02-23 |
Family
ID=61207468
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| CN201710839766.2A Pending CN107728017A (en) | 2017-09-18 | 2017-09-18 | Isolator detecting method is run under a kind of extreme climate environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109490715A (en) * | 2018-12-25 | 2019-03-19 | 浙江中新电力工程建设有限公司自动化分公司 | A kind of electric power system fault method of discrimination of extreme environment |
| CN117917552A (en) * | 2024-03-18 | 2024-04-23 | 中铁电气化局集团有限公司 | Insulator state detection method for electrified railway |
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