CN110244201A - A kind of composite insulating material breakdown test device and experimental method - Google Patents
A kind of composite insulating material breakdown test device and experimental method Download PDFInfo
- Publication number
- CN110244201A CN110244201A CN201910514965.5A CN201910514965A CN110244201A CN 110244201 A CN110244201 A CN 110244201A CN 201910514965 A CN201910514965 A CN 201910514965A CN 110244201 A CN110244201 A CN 110244201A
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- Prior art keywords
- insulating material
- computer
- composite insulating
- breakdown
- breakdown voltage
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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
-
- 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
- G01R31/1263—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 solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The present invention discloses a kind of composite insulating material breakdown test device and experimental method, is equipped with heating tube, temperature sensor and the humidity sensor being connected to computer inside transparent ageing oven；It is additionally provided with epoxy resin mica insulation plate insulating support, composite insulating material sample is placed on epoxy resin mica insulation plate, and is connected to external circuit by the fixed spherical copper electrode of band；The voltage that pressure measuring instrument monitoring external circuit applies composite insulating material sample, and monitor value is sent to computer；Transparent ageing oven is also controlled to a vacuum pump by pipeline, and vacuum pump is controlled by computer；The image data of the front and back process of the generation punch-through of shooting is sent to computer in outside transparent ageing oven by video camera setting.The present invention is able to reflect the ageing state of composite insulating material Glass fibre reinforced plastic tub under the conditions of high pressure, steady temperature and constant humidity, easy to operate, and safety is easy.
Description
Technical field
The present invention relates to the insulating properties detection technical field of composite insulating material, specially a kind of composite insulating material is hit
Wear solid experiment device and experimental method.
Background technique
In recent years, composite insulation outer coat attracts attention in high-voltage isulation field, wherein the Glass fibre reinforced plastic tub mainly contacted with oil
While playing the role of excellent support, because its good dielectric properties and resistance to sparking can be favored by grid company.No
It is same as general insulator arrangement, composite bushing can occur as time goes by corresponding because overheating, manufacturing and designing the reasons such as defect
Aging phenomenon, the Glass fibre reinforced plastic tub after aging are easy to happen breakdown accident, lead because of the reasons such as defect present on itself technique
It causes entire compound insulating sleeve to be broken, destroys its whole insulation system.
It can be seen that prevent under conditions of complexity, after the main material Glass fibre reinforced plastic tub of compound insulating sleeve is because of aging
Breakdown occurs and causes whole insulation breakdown, needs to can be carried out its resistance to sparking related experiment and by corresponding characteristic quantity
It is characterized.Therefore, composite insulating material Glass fibre reinforced plastic tub thin slice under a kind of high pressure, constant humidity and isothermal condition is invented to hit
The experimental provision worn, and invent a kind of by its breakdown voltage UsMatched curve come characterize its insulation performance variation experiment side
Method, come assess the insulation performance of Glass fibre reinforced plastic tub material seem it is particularly significant with it is eager.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide one kind to be able to reflect high pressure, steady temperature and constant humidity
Under the conditions of composite insulating material Glass fibre reinforced plastic tub ageing state composite insulating material breakdown test device and experimental method.Technology
Scheme is as follows:
A kind of composite insulating material breakdown test device, the transparent ageing oven including sealing are internally provided with and computer
Heating tube, temperature sensor and the humidity sensor being connected to；It is additionally provided with epoxy resin mica insulation plate insulating support, it is compound exhausted
Edge material sample is placed on epoxy resin mica insulation plate, and is connected to external circuit by the fixed spherical copper electrode of band；Voltage is surveyed
The voltage that amount instrument monitoring external circuit applies composite insulating material sample, and monitor value is sent to computer；Transparent aging
Case is also controlled to a vacuum pump by pipeline, and vacuum pump is controlled by computer；Video camera setting, and will shooting in outside transparent ageing oven
The image data of front and back process of generation punch-through be sent to computer.
Experimental method:
Step 1: experimental enviroment setting: placing desiccant in transparent ageing oven, true to carrying out taking out in case by vacuum pump
Vacancy reason by heating tube to heating in case, and acquires the temperature inside the box and wet by temperature sensor and humidity sensor
Degree, it is ensured that the temperature inside the box moisture constant；
Step 2: carry out breakdown test: control external circuit is compound exhausted when observing by the method continuous voltage rise that uniformly boosts
When punch-through occurs for edge material sample, the breakdown voltage data transmitted by pressure measuring instrument are recorded, while saving video camera biography
The image data of the front and back process of defeated generation punch-through；
Step 3: obtaining the matched curve of breakdown voltage: taking in measurement data and differ with first measured value no more than 10%
Breakdown voltage U of the average value of breakdown voltage value as composite insulating material sample 7 under this conditions:
In formula: UsFor breakdown voltage；UiFor the breakdown voltage value of test；N is the effective degree of test；
Pass through gained breakdown voltage Us, it is fitted and obtains the matched curve of breakdown voltage.
The beneficial effects of the present invention are: the present invention be able to reflect under the conditions of high pressure, steady temperature and constant humidity it is compound absolutely
The ageing state of edge material glass steel drum, easy to operate, safety is easy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of composite insulating material breakdown test device of the present invention.
In figure: the transparent ageing oven of 1-；2- heating tube；3- bracket；4- insulating support；5- epoxy resin mica insulation plate；6- band is solid
Fixed spherical shape copper electrode；7- composite insulating material sample；8- temperature sensor；9- humidity sensor；10- external circuit；11- voltage
Measuring instrument；12- pipeline；13- vacuum pump；14- fixes bracket；15- video camera；16- computer.
Specific embodiment
The present invention is described in further details in the following with reference to the drawings and specific embodiments.As shown in Figure 1, a kind of compound exhausted
Edge material breakdown experimental provision, which is characterized in that the transparent ageing oven 1 including sealing is internally provided with and is connected to computer
Heating tube 2, temperature sensor 8 and humidity sensor 9；It is additionally provided with 5 insulating support 4 of epoxy resin mica insulation plate, it is compound exhausted
Edge material sample 7 is placed on epoxy resin mica insulation plate 5, and is connected to external circuit 10 by the fixed spherical copper electrode 6 of band；Electricity
Pressure measuring instrument 11 monitors the voltage that external circuit 10 applies composite insulating material sample 7, and monitor value is sent to computer；
Transparent ageing oven 1 is also connect by pipeline 12 with vacuum pump 13, and vacuum pump 13 is controlled by computer；Video camera 15 is set to transparent
Outside ageing oven 1, and the image data of the front and back process of the generation punch-through of shooting is sent to computer 16.
Example: the experiment that composite insulating material Glass fibre reinforced plastic tub thin slice punctures under high pressure, constant humidity and isothermal condition
Platform includes the following steps: with experimental method
Step 1: building experiment porch
It is flat to build the experiment that composite insulating material Glass fibre reinforced plastic tub thin slice punctures under high pressure, constant humidity and isothermal condition
Platform is internally provided with 4 heating tubes 2 in transparent ageing oven 1, heating tube 2 is connected with computer 16, to receive computer 16
The control instruction of transmission.It will be connected with fixed spherical copper electrode 6 with external circuit 10, and be connected to pressure measuring instrument 11 and computer
16 are connected, while receiving the control instruction of the transmission of computer 16.Mounting temperature sensor 8 and humidity sensor 9, and temperature sensing
Device 8, humidity sensor 9 and video camera 15 are connected to computer 16.Transparent 1 cabinet of ageing oven is passed through into pipeline 12 and vacuum pump 13
It connects, while vacuum pump 13 connects computer 16, and receives the control instruction of the transmission of computer 16.
The present embodiment chooses Glass fibre reinforced plastic tub thin slice as sample, places it on epoxy resin mica insulation plate 5, and passes through two
The fixed spherical copper electrode 6 of a band is connected to external circuit 10.
Step 2: setting experimental enviroment
Vacuum pump 13 is opened by computer 16, to vacuumize process is carried out in the cabinet of transparent ageing oven 1, is located when vacuumizing
After reason, after setting experiment test temperature by computer 16, computer 16 opens 4 heating tubes 2, to adding in case
Heat, and feedback is received by temperature sensor 8, guard box body temperature is constant, while utilizing desiccant and humidity sensor 9
Feedback, guarantees the moisture constant in transparent ageing oven 1.
Step 3: test breakdown, and record the front and back process that punch-through occurs
External circuit 10 and video camera 15 are opened by computer 16, and controls external circuit 10 and is continued by uniformly boosting method
Boosting is recorded by computer 16 and is passed by pressure measuring instrument 11 when observing that punch-through occurs for Glass fibre reinforced plastic tub sheet metal specimens
Defeated breakdown voltage data, while saving the image data of the front and back process of the generation punch-through of the transmission of video camera 15.
Step 4: obtaining the matched curve of breakdown voltage
It is taken by computer 16 and differs being averaged for the breakdown voltage value for being no more than 10% in measurement data with first measured value
It is worth the breakdown voltage U as silicon rubber under this conditions:
In formula: UsFor breakdown voltage, unit kV；UiFor the breakdown voltage value of test, unit kV；N is the effective of test
Number.
Pass through gained breakdown voltage Us, it is fitted and stores resulting matched curve to computer 16.
Claims (2)
1. a kind of composite insulating material breakdown test device, which is characterized in that the transparent ageing oven (1) including sealing, inside
Equipped with heating tube (2), temperature sensor (8) and the humidity sensor (9) being connected to computer；It is additionally provided with epoxy-mica
Insulation board (5) insulating support (4), composite insulating material sample (7) are placed on epoxy resin mica insulation plate (5), and solid by band
Fixed spherical shape copper electrode (6) is connected to external circuit (10)；Pressure measuring instrument (11) monitors external circuit (10) to compound inslation material
Expect the voltage that sample (7) apply, and monitor value is sent to computer；Transparent ageing oven (1) also passes through pipeline (12) and vacuum
(13) connection is pumped, vacuum pump (13) is controlled by computer；Video camera (15) is set to transparent ageing oven (1) outside, and by shooting
The image data that the front and back process of punch-through occurs is sent to computer (16).
2. a kind of experimental method using composite insulating material breakdown test device described in claim 1, which is characterized in that packet
Include following steps:
Step 1: experimental enviroment setting: placing desiccant in the transparent ageing oven (1), by vacuum pump (13) to taking out in case
It is vacuum-treated, by heating tube (2) to heating in case, and passes through temperature sensor (8) and humidity sensor (9) vasculum
Interior temperature and humidity, it is ensured that the temperature inside the box moisture constant；
Step 2: carry out breakdown test: control external circuit (10) is compound exhausted when observing by the method continuous voltage rise that uniformly boosts
When punch-through occurs for edge material sample (7), the breakdown voltage data transmitted by pressure measuring instrument (11) are recorded, while saving and taking the photograph
The image data of the front and back process of the generation punch-through of camera (15) transmission；
Step 3: obtaining the matched curve of breakdown voltage: taking and differ the breakdown for being no more than 10% in measurement data with first measured value
Breakdown voltage U of the average value of voltage value as composite insulating material sample (7) under this conditions:
In formula: UsFor breakdown voltage；UiFor the breakdown voltage value of test；N is the effective degree of test；
Pass through gained breakdown voltage Us, it is fitted and obtains the matched curve of breakdown voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910514965.5A CN110244201A (en) | 2019-06-14 | 2019-06-14 | A kind of composite insulating material breakdown test device and experimental method |
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| CN201910514965.5A CN110244201A (en) | 2019-06-14 | 2019-06-14 | A kind of composite insulating material breakdown test device and experimental method |
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| CN201910514965.5A Pending CN110244201A (en) | 2019-06-14 | 2019-06-14 | A kind of composite insulating material breakdown test device and experimental method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780167A (en) * | 2019-11-12 | 2020-02-11 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN112129691A (en) * | 2020-09-25 | 2020-12-25 | 华北电力大学 | Solid insulating material aging experimental device and sampling method under extreme environment |
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| CN102841123A (en) * | 2012-09-04 | 2012-12-26 | 西安交通大学 | Measuring device and measuring method for trap parameter of solid dielectric material |
| CN203078996U (en) * | 2012-12-28 | 2013-07-24 | 福建鑫晶精密刚玉科技有限公司 | Constant-temperature constant-humidity shock-proof storage transport case for intraocular lens |
| CN106646016A (en) * | 2016-09-20 | 2017-05-10 | 国网天津市电力公司 | Insulated tubular bus main insulation material thermal aging performance test system |
| CN207529253U (en) * | 2017-11-27 | 2018-06-22 | 吴江市海拓仪器设备有限公司 | A kind of constant temperature humidity chamber |
| 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 |
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2019
- 2019-06-14 CN CN201910514965.5A patent/CN110244201A/en active Pending
Patent Citations (5)
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| CN102841123A (en) * | 2012-09-04 | 2012-12-26 | 西安交通大学 | Measuring device and measuring method for trap parameter of solid dielectric material |
| CN203078996U (en) * | 2012-12-28 | 2013-07-24 | 福建鑫晶精密刚玉科技有限公司 | Constant-temperature constant-humidity shock-proof storage transport case for intraocular lens |
| CN106646016A (en) * | 2016-09-20 | 2017-05-10 | 国网天津市电力公司 | Insulated tubular bus main insulation material thermal aging performance test system |
| CN207529253U (en) * | 2017-11-27 | 2018-06-22 | 吴江市海拓仪器设备有限公司 | A kind of constant temperature humidity chamber |
| 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 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780167A (en) * | 2019-11-12 | 2020-02-11 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN110780167B (en) * | 2019-11-12 | 2021-08-17 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN112129691A (en) * | 2020-09-25 | 2020-12-25 | 华北电力大学 | Solid insulating material aging experimental device and sampling method under extreme environment |
| CN112129691B (en) * | 2020-09-25 | 2022-10-04 | 华北电力大学 | Solid insulating material aging experimental device and sampling method under extreme environment |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201028 Address after: 610031 Chengdu City, Sichuan Province, No. two North Ring Road, Southwest Jiao Tong University, Applicant after: SOUTHWEST JIAOTONG University Applicant after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Applicant after: CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Applicant after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Address before: 610031 Chengdu City, Sichuan Province, No. two North Ring Road, Southwest Jiao Tong University, Applicant before: SOUTHWEST JIAOTONG University |
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Application publication date: 20190917 |
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