CN110132835A - A kind of composite insulating material insulation degradation assessment system and experimental method - Google Patents
A kind of composite insulating material insulation degradation assessment system and experimental method Download PDFInfo
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- CN110132835A CN110132835A CN201910461498.4A CN201910461498A CN110132835A CN 110132835 A CN110132835 A CN 110132835A CN 201910461498 A CN201910461498 A CN 201910461498A CN 110132835 A CN110132835 A CN 110132835A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/04—Corrosion probes
Abstract
The present invention relates to a kind of composite insulating material insulation degradation assessment system and experimental methods, including the insulated platform for placing sample；It further include that alive pin electrode, grid are applied for sample；It is additionally provided with the aluminum back electrode for sample charging on insulated platform, is provided with corresponding probe above aluminum back electrode；Pin electrode connects stylus high-voltage DC power supply, and grid connects grid high-voltage DC power supply；Stylus high-voltage DC power supply, grid high-voltage DC power supply and aluminum back electrode are grounded；Probe is sequentially connected potentiometer, A/D conversion equipment and control device；Insulated platform is placed in closed transparent reaction case；Temperature sensor, humidity sensor and drying device are provided in reaction chamber；Temperature sensor and humidity sensor are all connected to control device；The present invention can simultaneously test the hydrophobicity of insulating materials, edge flashing and isothermal surface potential decay performance.
Description
Technical field
The present invention relates to the insulating properties detection technical fields of high-tension electricity equipment composite insulating material, and in particular to a kind of
Composite insulating material insulation degradation assessment system and experimental method.
Background technique
Composite insulator has been widely used in the power system because having many advantages, such as that quality is small, hydrophobicity is strong.But with
The increase of composite insulator usage quantity and the operation time limit, composite insulator material aging phenomenon gradually highlight, and cause insulation
Reliability decrease, problem of aging have caused the attention of operation power department.Aging because being known as solar UV irradiation, filth
And corona discharge aging, arc discharge etc., the probability that wherein corona discharge aging occurs is high, the duration is long, and harm is also larger,
If composite insulator long-term, the surface texture of material will destroy, hydrophobicity loss by corona discharge aging, into
And insulator is made to lose its use value, influence the safe operation of power grid.There is presently no be directed to novel composite insulating material
Insulation degradation assessment system and experimental method.
Summary of the invention
The present invention provide it is a kind of be capable of complete, reasonable analysis composite insulating material insulation degradation degree and characteristic it is compound absolutely
Edge insulated with material deteriorates assessment system and experimental method.
The technical solution adopted by the present invention is that: a kind of composite insulating material insulation isothermal surface potential decay experimental provision,
Including the insulated platform for placing sample；It further include that alive pin electrode, grid are applied for sample；It is also set up on insulated platform
The aluminum back electrode of promising sample charging, aluminum back electrode top are provided with corresponding probe；Pin electrode connects the high straightening of stylus
Galvanic electricity source, grid connect grid high-voltage DC power supply；Stylus high-voltage DC power supply, grid high-voltage DC power supply and aluminum back electrode are equal
Ground connection；Probe is sequentially connected potentiometer, A/D conversion equipment and control device；Insulated platform is placed in closed transparent reaction case；
Temperature sensor, humidity sensor and drying device are provided in reaction chamber；Temperature sensor and humidity sensor are all connected to
Control device.
Further, the aluminum back electrode is fixed by second support；Pin electrode is fixed by first support.
A kind of composite insulating material insulation degradation assessment system, including isothermal surface potential decay experimental provision, along face dodge
Network experimental provision and hydrophobicity experimental provision；Hydrophobicity experimental provision includes the sample introduction for deionized water to be added dropwise to specimen surface
Device, sample injector connection have the driving tube of piston；Piston in driving tube connects motor；Motor connects control device；Examination
Sample corresponding position is provided with the video camera for shooting specimen surface solid, liquid interface；Video camera connects control device.
Further, the sample injector is fixed by supporting support；Video camera is fixed by camera mount.
Further, the edge flashing experimental provision includes the heating device being arranged in reaction chamber；It is connected on sample
First finger electrodes and the second finger electrodes；It is arranged between first finger electrodes and the second finger electrodes according to pre-determined distance；The
One finger electrodes connect flashover generating device with the second finger electrodes；Flashover generating device connects pressure measuring instrument；It is additionally provided with
The vacuum pump vacuumized for reaction chamber；Vacuum pump, pressure measuring instrument and flashover generating device are all connected to control device.
A kind of experimental method of composite insulating material insulation degradation assessment system, comprising the following steps:
Step 1: hydrophobicity experiment
Deionized water will be packed into sample injector, control device issues order-driven motor and infers driving tube inner piston to the left
Movement makes sample injector drip deionized water drop to specimen surface；
Microshot, control device identification, storage shooting image are carried out to water droplet by video camera；It is obtained according to shooting
Image obtains static contact angle θ；
It takes the average value of the static contact angle with initial calculation average value error in given threshold to be used as to try under this condition
The static contact angle of sample:
In formula: θfFor obtained static contact angle, θiFor the static contact angle of test, N is the effective degree of test；
According to obtained static contact angle θfFitting, the static state that can be obtained under different aging conditions and digestion period connect
Feeler matched curve；
Step 2: edge flashing experiment
Control device control vacuum pump vacuumizes reaction chamber；Control device controls heating devices heat, works as temperature
After sensor reaches set temperature, control device controls heater stop heating, keeps constant temperature in reaction chamber；
Control device controls flashover generating device and video camera starting, flashover generating device continuous voltage rise；Pass through video camera
Observe specimen surface situation；When a flashover occurs, control device identification video camera shoots image, and record occurs voltage when flashover and surveys
Measure instrument measurement data；
After duplicate measurements M times, the average value of the flashover voltage value with initial calculation average value error in given threshold is taken
As pollution flashover voltage U under this conditionf:
In formula: UiFor the flashover voltage value that i-th measurement obtains, M is pendulous frequency；
According to obtained pollution flashover voltage UfFitting, can be obtained the pollution flashover voltage under different aging conditions and digestion period
Matched curve；
Step 3: the experiment of isothermal surface potential decay
Activation pin extra-high voltage DC power supply and grid high-voltage DC power supply apply voltage to sample, break after reaching preset time
It opens；Mobile sample to probe lower section measures；Pass through temperature sensor measurement Current Temperatures；
The starting of control device controlling potential meter, potentiometer measurement data are transferred to control device by A/D conversion equipment.
The beneficial effects of the present invention are:
(1) present invention can simultaneously to the hydrophobicity of insulating materials, edge flashing and isothermal surface potential decay performance into
Row test；
(2) present invention further can carry out composite insulating material insulation degradation degree and characteristic according to the performance measured
Evaluation.
Detailed description of the invention
Fig. 1 is hydrophobicity experimental provision structural schematic diagram of the present invention.
Fig. 2 is edge flashing experimental provision structural schematic diagram of the present invention.
Fig. 3 is isothermal surface potential decay experimental provision structural schematic diagram of the present invention.
Fig. 4 is isothermal surface potential decay experimental provision platform main view of the present invention.
In figure: 1- cross bar, 2- insulation board, the first vertical bar of 3a-, the second vertical bar of 3b-, 4- sample, 5- sample injector, 6- driving
Pipe, 7- motor, 8- supporting support, 9- control device, 10- video camera, 11- camera mount, 12- reaction chamber, 13- heating dress
It sets, the first finger electrodes of 14a-, the second finger electrodes of 14b-, 15- temperature sensor, 16- humidity sensor, 17- flashover occurs
Device, 18- pressure measuring instrument, 19- vacuum tube, 20- vacuum pump, 21- stylus high-voltage DC power supply, 22- grid high voltage direct current
Source, 23a- first support, 23b- second support, 24- pin electrode, 25- grid, 26- insulated platform, 27- probe, the dry dress of 28-
It sets, 29- aluminum back electrode, 30- potentiometer, 31-A/D conversion equipment.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Figs 1-4, a kind of composite insulating material insulation isothermal surface potential decay experimental provision, including for placing
The insulated platform 26 of sample 4；It further include that alive pin electrode 24, grid 25 are applied for sample 4；It is additionally provided on insulated platform 26
For the aluminum back electrode 29 that sample 4 charges, corresponding probe 27 is provided with above aluminum back electrode 29；Pin electrode 24 connects stylus
High-voltage DC power supply 21, grid 25 connect grid high-voltage DC power supply 22；Stylus high-voltage DC power supply 21, grid high voltage direct current
Source 22 and aluminum back electrode 29 are grounded；Probe 27 is sequentially connected potentiometer 30, A/D conversion equipment 31 and control device 9；Insulation is flat
Platform 26 is placed in closed transparent reaction case 12；Temperature sensor 15, humidity sensor 16 and drying are provided in reaction chamber 12
Device 28；Temperature sensor 15 and humidity sensor 16 are all connected to control device 9；Distance is between pin electrode 24 and grid 25
5mm；25 test coupon 4 of grid is 5mm, and 27 test coupons 4 of probe are 3mm.
Aluminum back electrode 29 is fixed by second support 23b；Pin electrode 24 is fixed by first support 23a.
A kind of composite insulating material insulation degradation assessment system, including isothermal surface potential decay experimental provision, along face dodge
Network experimental provision and hydrophobicity experimental provision；Hydrophobicity experimental provision includes the sample introduction for deionized water to be added dropwise to specimen surface
Device 5, the connection of sample injector 5 have the driving tube 6 of piston；Piston in driving tube 6 connects motor 7；The connection control dress of motor 7
Set 9；4 corresponding position of sample is provided with the video camera 10 for shooting 4 surface solid, liquid interface of sample；The connection control of video camera 10
Device 9 processed.
The sample injector 5 is fixed by supporting support 8；Video camera 10 is fixed by camera mount 11.
The edge flashing experimental provision includes the heating device 13 being arranged in reaction chamber 12；First is connected on sample 4
Finger electrodes 14a and the second finger electrodes 14b；According to pre-determined distance between first finger electrodes 14a and the second finger electrodes 14b
Setting；First finger electrodes 14a and the second finger electrodes 14b connection flashover generating device 17；Flashover generating device 17 connects electricity
Press measuring instrument 18；It is additionally provided with the vacuum pump 20 vacuumized for reaction chamber 12；Vacuum pump 20, pressure measuring instrument 18 and flashover hair
Generating apparatus 17 is all connected to control device 9；Reaction chamber 12 is cube structure, and heating device 13 includes four heating tubes；Four
Heating tube is separately positioned on four ribs of reaction chamber 12.
Sample 4 can be set on the insulation board 2 of epoxy-mica preparation；Insulated platform 26 can wrap for placing sample 4
Include vertically arranged the first upright bar 3a and the second upright bar 3b；Cross bar 1 is provided between first upright bar 3a and the second upright bar 3b；Insulation
The setting of plate 2 is at 1 middle part of cross bar.Flashover generating device 17 includes sequentially connected pressure regulator, transformer, current-limiting resistor voltage divider and divides
Press；Pressure regulator is connected to AC power source；Pressure regulator, transformer and divider are grounded；Finger electrodes 14a and the second finger-type electricity
Pole 14b is connected between current-limiting resistor voltage divider and partial pressure machine.
Edge flashing experimental provision, hydrophobicity experimental provision and isothermal surface potential decay experimental provision collection are combined into deterioration and comment
Estimate system, synthesis assesses composite insulating material.Control device 9 can be realized using computer.
A kind of experimental method of composite insulating material insulation degradation assessment system, comprising the following steps:
Step 1: hydrophobicity experiment
Deionized water will be packed into sample injector 5, starting control device 9 issues order-driven motor 7 and infers in driving tube 6
Piston moves downward, and sample injector 5 is made to drip deionized water drop to 4 surface of sample；Make band injection port sample injector 5 on specimen surface
It drips at square 5mm 4 μ L deionized water drops.
Microshot, the identification of control device 9, storage shooting image are carried out to water droplet by video camera 10；According to shooting
To image obtain static contact angle θ；Ordinary circumstance decline video camera 10, which is placed in, is parallel to solid, liquid interface location.
The average value for the static contact angle for (being no more than 10%) in given threshold with initial calculation average value error is taken to make
For the static contact angle of sample under this condition:
In formula: θfFor obtained static contact angle, θiFor the static contact angle of test, N is the effective degree of test；
According to obtained static contact angle θfFitting, the static state that can be obtained under different aging conditions and digestion period connect
Feeler matched curve；The curve obtained by fitting you can get it under different aging conditions and digestion period material surface hydrophobicity
Changing rule；As the characteristic quantity for assessing the insulating materials surface hydrophobicity, static contact angle θfIt is bigger, material surface hydrophobic
Property is better.
Step 2: edge flashing experiment
Control device 9 controls vacuum pump 20 and vacuumizes to reaction chamber 12；Control device 9 controls heating device 13 and adds
Heat, after temperature sensor 15 reaches set temperature, control device 9 controls heating device 13 and stops heating, keeps reaction chamber 12
Interior constant temperature；And feedback is received by humidity sensor 15 and temperature sensor 16 at any time, guard box body temperature is constant, and at any time
Record humidity in cabinet.
Control device 9 controls flashover generating device 17 and video camera 10 starts, 17 continuous voltage rise of flashover generating device；Pass through
Video camera 10 observes 4 surface condition of sample；When a flashover occurs, control device 10 identifies that video camera 10 shoots image, record hair
18 measurement data of pressure measuring instrument when raw flashover；The influence data of the flashover process of the transmission of video camera 10 are saved simultaneously.
After duplicate measurements M times, the flashover voltage value with initial calculation average value error in given threshold (10%) is taken
Average value is as pollution flashover voltage U under this conditionf:
In formula: UiFor the flashover voltage value that i-th measurement obtains, M is pendulous frequency；
According to obtained pollution flashover voltage UfFitting, can be obtained the pollution flashover voltage under different aging conditions and digestion period
Matched curve；Pass through obtained flashover voltage value UfIt can obtain the resistance to flashover ability of sample 4 (silicon rubber) material, flashover voltage value Uf
Bigger, resistance to edge flashing ability is stronger, and insulation performance is better.Thus characteristic can study different aging conditions and digestion period
Under sample 4 surface flashover characteristics, and compared and analyzed with Trap Characteristics.
Step 3: the experiment of isothermal surface potential decay
Activation pin extra-high voltage DC power supply 21 and grid high-voltage DC power supply 22 apply voltage to sample 4；Hole is analyzed to fall into
When trap ,+8kV is set by the application voltage of stylus high-voltage DC power supply 21, grid high-voltage DC power supply 22 is applied into voltage setting
For+3kV.When analyzing electron trap, the application voltage of stylus high-voltage DC power supply 21 is set as -8kV, by grid high-voltage DC power supply
Apply voltage and is set as -3kV.Charging 10min simultaneously opens the progress high pressure waste heat of potentiometer 30.The high straightening of stylus is disconnected after charging complete
Sample 4 is moved to below probe (being popped one's head in using vibration static) 27 rapidly by galvanic electricity source 21 and grid high-voltage DC power supply 22
Start to measure, open the data acquisition software on control device 9, voltage signal is read by capture card and is transferred to control device 9,
The attenuation data of acquisition and recording surface potential；Calculation processing by the data recorded through software, fitting obtain positive polarity direct current
HTV silastic surface potential decay curve under charging after aging, calculates and draws hole trap distribution curve.Hole trap is surveyed
After the completion of amount, each group sample is stood for 24 hours, control high-voltage DC power supply is to pin electrode and grid application -8kV and -3kV respectively
DC power supply completes the electron trap measurement of each group aging silicon rubber (HTV) referring to the step of hole trap measurement.
A length of 4h when measurement.It is maintained at 40% by humidity sensor 15 and the intracorporal humidity of 28 guard box of drying device,
Current Temperatures are measured by temperature sensor 16, and are recorded；
The starting of 9 controlling potential meter 30 of control device, 30 measurement data of potentiometer are transferred to control by A/D conversion equipment 31
Device 9.It is directed to for silicon rubber sample 4, the flashover property of Trap Characteristics and material has corresponding relationship, and shallow trap is due to its spy
Property, free state electrons and holes are easier to be captured, while being also easier to escape.And deep trap is more difficult to capture free state
Electrons and holes, while they are also difficult to escape.So the low corresponding shallow trap of material edge flashing voltage is more, flashover electricity
The high corresponding deep trap of pressure is more.By the available different aging conditions of the experiment and the material Trap Characteristics under digestion period,
And corresponding research, the deterioration performance of further research material can be carried out with the flashover voltage of material.
The present invention builds silicon rubber hydrophobicity experimental provision first, starts video camera 10 and motor 7, passes through motor 7
Piston is pushed, the sample injector 5 with injection port is made to drip at 4 surface 5mm of sample 4 μ L deionized water drops.After 1 minute, benefit
Solid, liquid interface being parallel to video camera 10, microshot being carried out to water droplet, the picture of shooting is then uploaded to control device
9；After the static contact angle for measuring and screening out deviation by control device 9, Reasonable Parameters are obtained by mean value method, can be obtained
Its static contact angle.This experimental provision can accurately react the external insulation performance of silastic material, and can be accurately obtained the sample
Static contact angle.Material surface hydrophobicity is characterized finally by static contact angle.Hydrophobicity refers to that insulator surface is not easy
Dampness, the moisture of absorption exist in the form of discontinuous isolated droplet, do not form continuous moisture film, let out to limit surface
Leakage current improves flashover voltage, and static contact angle θ is bigger, and material surface hydrophobicity is better.Thus characteristic can be studied not
The change of silastic material surface hydrophobicity with aging condition and under digestion period.
Then flashover experimental provision is built, starts heating device 13, voltage is persistently increased by method of uniformly boosting, unlatching is taken the photograph
The whole process of flashover occurs since pressurization to sample for the record of camera 10, and video data is automatically stored to control device 9.
The data parameters that measurement obtains are sent control device 9 by potentiometer 30 simultaneously；After deleting deviation data, average value is utilized
At a function curve, its flashover voltage can be obtained in obtained parameter fitting by method.The pilot system and method are effective
The composite insulating material silicon rubber edge flashing state under constant temperature is simulated, and the flashover voltage of the sample can be accurately obtained
Value Uf, pass through resulting flashover voltage value UfIt can obtain the resistance to flashover ability of silastic material, flashover voltage value UfIt is bigger, it is resistance to along face
Flashover ability is stronger, and insulation performance is better.Thus characteristic can study the silicon rubber examination under different aging conditions and digestion period
The surface flashover characteristics of sample, and compared and analyzed with Trap Characteristics.
Silicon rubber isothermal surface potential decay experimental provision is finally built, is first close to the silicon rubber sample 4 handled well
In on the back electrode 29 of charging unit, adjusting electrode spacing grid 25 and grid 25 away from each 5mm in 4 surface of sample, high pressure is controlled first
DC power supply is to the DC voltage of pin electrode 24 and grid 25 application+8kV and+3kV respectively, to aging sample charging 10min, and
It opens potentiometer 30 and carries out high pressure preheating.After charging complete, sample 4 is placed in the vibration static away from 4 surface 3mm of sample rapidly
Under probe 27, the data acquisition software on control device 9 (computer) is opened, read voltage signal by capture card and is transmitted to
Control device 9, the attenuation data of acquisition and recording surface potential.The calculation processing that the data recorded are passed through to software, is fitted
HTV silastic surface potential decay curve under to positive polarity DC charging after aging calculates and draws hole trap distribution song
Line.After hole trap is measured, each group sample is stood for 24 hours, control high-voltage DC power supply divides pin electrode 24 and grid 25
The not DC voltage of application -8kV and -3kV completes the electricity of each group aging silicon rubber (HTV) referring to the step of hole trap measurement
The measurement of sub- trap, is directed to for silastic material, and the flashover property of Trap Characteristics and material has a corresponding relationship, shallow trap due to
Its characteristic, free state electrons and holes are easier to be captured, while being also easier to escape, and deep trap is more difficult capture and dissociates
The electrons and holes of state, while they difficult can also escape.Therefore the low corresponding shallow trap of material edge flashing voltage is more, flashover
It is more that voltage height corresponds to deep trap.The available different aging conditions of the method and the material Trap Characteristics under digestion period, and
Corresponding research can be carried out with the flashover voltage of material.
Claims (6)
- The isothermal surface potential decay experimental provision 1. a kind of composite insulating material insulate, which is characterized in that including for placing examination The insulated platform (26) of sample (4)；It further include that alive pin electrode (24), grid (25) are applied for sample (4)；Insulated platform (26) On be additionally provided with aluminum back electrode (29) for sample (4) charging, be provided with corresponding probe above aluminum back electrode (29) (27)；Pin electrode (24) connects stylus high-voltage DC power supply (21), and grid (25) connects grid high-voltage DC power supply (22)；Stylus High-voltage DC power supply (21), grid high-voltage DC power supply (22) and aluminum back electrode (29) are grounded；Probe (27) is sequentially connected electricity Position meter (30), A/D conversion equipment (31) and control device (9)；Insulated platform (26) is placed in closed transparent reaction case (12)； Temperature sensor (15), humidity sensor (16) and drying device (28) are provided in reaction chamber (12)；Temperature sensor (15) Control device (9) are all connected to humidity sensor (16).
- The isothermal surface potential decay experimental provision 2. a kind of composite insulating material according to claim 1 insulate, feature It is, the aluminum back electrode (29) is fixed by second support (23b)；Pin electrode (24) is fixed by first support (23a).
- 3. using the composite insulating material insulation degradation assessment system such as claim 2 isothermal surface potential decay experimental provision, It is characterised in that it includes isothermal surface potential decay experimental provision, edge flashing experimental provision and hydrophobicity experimental provision；Hydrophobic Property experimental provision include for specimen surface be added dropwise deionized water sample injector (5), sample injector (5) connection have piston drive Dynamic pipe (6)；Piston in driving tube (6) connects motor (7)；Motor (7) connects control device (9)；Sample (4) corresponds to position Install the video camera (10) being equipped with for shooting sample (4) surface solid, liquid interface；Video camera (10) connects control device (9).
- 4. a kind of composite insulating material insulation degradation assessment system according to claim 3, which is characterized in that the sample introduction Device (5) is fixed by supporting support (8)；Video camera (10) is fixed by camera mount (11).
- 5. a kind of composite insulating material insulation degradation assessment system according to claim 3, which is characterized in that described along face Flashover experimental provision includes the heating device (13) being arranged in reaction chamber (12)；Sample connects the first finger electrodes on (4) (14a) and the second finger electrodes (14b)；According to pre-determined distance between first finger electrodes (14a) and the second finger electrodes (14b) Setting；First finger electrodes (14a) and the second finger electrodes (14b) connection flashover generating device (17)；Flashover generating device (17) pressure measuring instrument (18) are connected；It is additionally provided with the vacuum pump (20) vacuumized for reaction chamber (12)；Vacuum pump (20), electricity Pressure measuring instrument (18) and flashover generating device (17) are all connected to control device (9).
- 6. a kind of experimental method of composite insulating material insulation degradation assessment system as claimed in claim 5, which is characterized in that The following steps are included:Step 1: hydrophobicity experimentDeionized water will be packed into sample injector (5), control device (9) issues order-driven motor (7) and infers in driving tube (6) Piston moves downward, and sample injector (5) is made to drip deionized water drop to sample (4) surface；Microshot, control device (9) identification, storage shooting image are carried out to water droplet by video camera (10)；According to shooting To image obtain static contact angle θ；Take the average value of the static contact angle with initial calculation average value error in given threshold as sample under this condition Static contact angle:In formula: θfFor obtained static contact angle, θiFor the static contact angle of test, N is the effective degree of test；Step 2: edge flashing experimentControl device (9) control vacuum pump (20) vacuumizes reaction chamber (12)；Control device (9) controls heating device (13) it heats, after temperature sensor (15) reaches set temperature, control device (9) controls heating device (13) and stops heating, Keep reaction chamber (12) interior constant temperature；Control device (9) controls flashover generating device (17) and video camera (10) starting, flashover generating device (17) continuous voltage rise； Sample (4) surface condition is observed by video camera (10)；When a flashover occurs, control device (10) identification video camera (10) shooting Pressure measuring instrument (18) measurement data when flashover occurs for image, record；After duplicate measurements M times, the average value conduct of the flashover voltage value with initial calculation average value error in given threshold is taken Pollution flashover voltage U under this conditionf:In formula: UiFor the flashover voltage value that i-th measurement obtains, M is pendulous frequency；Step 3: the experiment of isothermal surface potential decayActivation pin extra-high voltage DC power supply (21) and grid high-voltage DC power supply (22) apply voltage to sample (4), reach default It is disconnected after time；Measurement below mobile sample (4) to probe (27)；Current Temperatures are measured by temperature sensor (16)；Control device (9) controlling potential meter (30) starting, potentiometer (30) measurement data are transferred to by A/D conversion equipment (31) Control device (9)；Experiment can be completed.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020108911A1 (en) * | 2000-12-13 | 2002-08-15 | Kun Xiong | Pseudo-fouling detector and use thereof to control an industrial water process |
| CN2745065Y (en) * | 2004-08-06 | 2005-12-07 | 华北电力大学（北京） | Apparatus for online detection of hydrophobicity and hydrophobic mobility of composite insulator |
| CN102053046A (en) * | 2010-11-02 | 2011-05-11 | 武汉大学 | System and method for detecting hydrophilic angle on surface of composite insulator |
| CN102494971A (en) * | 2011-11-29 | 2012-06-13 | 河北省电力建设调整试验所 | Method for detecting hydrophobic nature of composite insulator based on dynamic contact angles |
| CN203455260U (en) * | 2013-08-29 | 2014-02-26 | 华南理工大学 | Static contact angle shooting device |
| CN104568676A (en) * | 2015-01-20 | 2015-04-29 | 清华大学深圳研究生院 | Method and device for testing hydrophobic property of material |
| CN106646015A (en) * | 2016-09-20 | 2017-05-10 | 国网天津市电力公司 | Insulating tube type bus major insulation material space charge characteristic test system |
| CN206945893U (en) * | 2017-05-27 | 2018-01-30 | 国网湖北省电力公司检修公司 | A kind of potential decay measurement apparatus on epoxy fluorination top layer |
| CN108090487A (en) * | 2017-11-28 | 2018-05-29 | 华南理工大学 | A kind of automatic identifying method using Image Feature Detection composite insulator hydrophobic grade |
| CN108445310A (en) * | 2018-06-05 | 2018-08-24 | 沈阳工业大学 | A kind of polymer surfaces charge and trap level characteristic measuring device and method |
| CN108508282A (en) * | 2018-06-04 | 2018-09-07 | 深圳供电局有限公司 | A kind of measuring apparatus of thin-film material surface current potential |
| CN207937309U (en) * | 2017-05-22 | 2018-10-02 | 兰州交通大学 | A kind of Hydrophobicity of Composite Insulator detection device |
| CN208506142U (en) * | 2018-06-04 | 2019-02-15 | 深圳供电局有限公司 | A kind of measuring device of thin-film material surface current potential |
| CN109633393A (en) * | 2019-01-16 | 2019-04-16 | 西南交通大学 | A kind of composite insulating material edge flashing experimental provision and experimental method |
-
2019
- 2019-05-30 CN CN201910461498.4A patent/CN110132835A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020108911A1 (en) * | 2000-12-13 | 2002-08-15 | Kun Xiong | Pseudo-fouling detector and use thereof to control an industrial water process |
| CN2745065Y (en) * | 2004-08-06 | 2005-12-07 | 华北电力大学（北京） | Apparatus for online detection of hydrophobicity and hydrophobic mobility of composite insulator |
| CN102053046A (en) * | 2010-11-02 | 2011-05-11 | 武汉大学 | System and method for detecting hydrophilic angle on surface of composite insulator |
| CN102494971A (en) * | 2011-11-29 | 2012-06-13 | 河北省电力建设调整试验所 | Method for detecting hydrophobic nature of composite insulator based on dynamic contact angles |
| CN203455260U (en) * | 2013-08-29 | 2014-02-26 | 华南理工大学 | Static contact angle shooting device |
| CN104568676A (en) * | 2015-01-20 | 2015-04-29 | 清华大学深圳研究生院 | Method and device for testing hydrophobic property of material |
| CN106646015A (en) * | 2016-09-20 | 2017-05-10 | 国网天津市电力公司 | Insulating tube type bus major insulation material space charge characteristic test system |
| CN207937309U (en) * | 2017-05-22 | 2018-10-02 | 兰州交通大学 | A kind of Hydrophobicity of Composite Insulator detection device |
| CN206945893U (en) * | 2017-05-27 | 2018-01-30 | 国网湖北省电力公司检修公司 | A kind of potential decay measurement apparatus on epoxy fluorination top layer |
| CN108090487A (en) * | 2017-11-28 | 2018-05-29 | 华南理工大学 | A kind of automatic identifying method using Image Feature Detection composite insulator hydrophobic grade |
| CN108508282A (en) * | 2018-06-04 | 2018-09-07 | 深圳供电局有限公司 | A kind of measuring apparatus of thin-film material surface current potential |
| CN208506142U (en) * | 2018-06-04 | 2019-02-15 | 深圳供电局有限公司 | A kind of measuring device of thin-film material surface current potential |
| CN108445310A (en) * | 2018-06-05 | 2018-08-24 | 沈阳工业大学 | A kind of polymer surfaces charge and trap level characteristic measuring device and method |
| CN109633393A (en) * | 2019-01-16 | 2019-04-16 | 西南交通大学 | A kind of composite insulating material edge flashing experimental provision and experimental method |
Non-Patent Citations (1)
| Title |
|---|
| 戴罕奇等: "复合绝缘子弱憎水性状态描述方法I-静态接触角法的适用性", 《电工技术学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780165A (en) * | 2019-11-08 | 2020-02-11 | 西南交通大学 | Transformer winding overheating inter-turn insulation material degradation testing device and testing method |
| CN110780167A (en) * | 2019-11-12 | 2020-02-11 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN110967603A (en) * | 2019-12-19 | 2020-04-07 | 上海交通大学 | Method for evaluating flashover resistance of electrical material |
| CN110967603B (en) * | 2019-12-19 | 2021-06-22 | 上海交通大学 | Method for evaluating flashover resistance of electrical material |
| CN111157895A (en) * | 2020-02-10 | 2020-05-15 | 哈尔滨理工大学 | High-voltage motor stator winding end surface potential measuring system |
| CN111157895B (en) * | 2020-02-10 | 2022-02-25 | 哈尔滨理工大学 | High-voltage motor stator winding end surface potential measuring system |
| CN111562448A (en) * | 2020-05-15 | 2020-08-21 | 中国南方电网有限责任公司电网技术研究中心 | High-voltage direct-current cable insulating layer charge injection quantity characterization method |
| CN111562448B (en) * | 2020-05-15 | 2023-02-28 | 南方电网科学研究院有限责任公司 | High-voltage direct-current cable insulating layer charge injection amount characterization method |
| CN112526302A (en) * | 2020-11-30 | 2021-03-19 | 广东电网有限责任公司佛山供电局 | Line overshoot tolerance characteristic test platform and evaluation method under multi-environment factors |
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