CN105510716B - Measure the experimental rig of the resistivity at interface between silicon rubber and fiberglass - Google Patents
Measure the experimental rig of the resistivity at interface between silicon rubber and fiberglass Download PDFInfo
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- CN105510716B CN105510716B CN201610060214.7A CN201610060214A CN105510716B CN 105510716 B CN105510716 B CN 105510716B CN 201610060214 A CN201610060214 A CN 201610060214A CN 105510716 B CN105510716 B CN 105510716B
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 43
- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 38
- 238000005259 measurement Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 239000002131 composite material Substances 0.000 abstract description 7
- 239000012212 insulator Substances 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of experimental rig for measuring the resistivity at interface between silicon rubber and fiberglass, including silicon rubber, fiberglass, thin rounded flakes measuring electrode, circular ring shape thin slice high-field electrode, the first circular shield electrode, the second circular shield electrode, power supply and current measure device；Thin rounded flakes measuring electrode and circular ring shape thin slice high-field electrode are arranged between silicon rubber and fiberglass, first circular shield electrode and the second circular shield electrode set the outside of silicon rubber and fiberglass opposite face respectively, circular ring shape thin slice high-field electrode connects power supply, thin rounded flakes measuring electrode connects current measure device, and the first circular shield electrode and the second circular shield electrode are grounded.The invention has the advantages that：The volumetric energy for the fiberglass test product for flowing through silicon rubber test product and central through hole can be shielded by the first circular electrode and the second circular electrode, so as to ensure composite insulator performance, and then ensures the stable operation of electric system.
Description
Technical field
This application involves high-voltage insulation technique fields, and in particular to a kind of electricity for measuring interface between silicon rubber and fiberglass
The experimental rig of resistance rate.
Background technology
The energy centre and power load center in China are located at central and west regions and the southeastern coastal areas, this energy respectively
The center reality misaligned with load center causes using extra-high voltage AC and DC circuit meets large capacity, long distance power transmission becomes
The inevitable choice of national development.Composite insulator in overhead transmission line undertakes electrically and mechanically both sides effect, is transporting
It must endure as long-term work voltage and various transient overvoltages in row, while need to protect in climatic environment complicated and changeable
Hold safety and stability.Therefore, composite insulator performance quality can directly affect the stable operation of electric system.
The fracture accident of composite insulator causes power system stability great threat, and one type is broken by correlative study
Locate plug quality and become crisp, shaped like rotten wood, mandrel surface dusting, glass fibre is separated with resin, and there are black electric discharge ablation traces
Composite insulator mechanical breaking accident be known as crisp rotten fracture.But not yet occur a kind of to detect composite insulator in the prior art
Performance and device at low cost.
The content of the invention
It is contemplated that at least solve one of above-mentioned technical problem.
For this purpose, an object of the present invention is to provide a kind of examinations for measuring the resistivity at interface between silicon rubber and fiberglass
Experiment device.
To achieve these goals, embodiment of the invention discloses that a kind of electricity for measuring interface between silicon rubber and fiberglass
The experimental rig of resistance rate, including silicon rubber, fiberglass, thin rounded flakes measuring electrode, circular ring shape thin slice high-field electrode, the first circle
Bucking electrode, the second circular shield electrode, power supply and current measure device；Thin rounded flakes measuring electrode and circular ring shape thin slice high pressure
Electrode is arranged between silicon rubber and fiberglass, and thin rounded flakes measuring electrode and circular ring shape thin slice high-field electrode concentric are set,
First through hole is provided on fiberglass, the second through hole is provided on the second circular shield electrode, thin rounded flakes measuring electrode
The center of circle, the first through hole and second through hole are located on straight line, and the first circular shield electrode is arranged far from glass
On the surface of the silicon rubber of steel, on the surface for the fiberglass that the second circular shield electrode is arranged far from silicon rubber, the power supply
It is connected with circular ring shape thin slice high-field electrode, the current sensing means passes through with the first through hole and second through hole and institute
The center of circle connection of thin rounded flakes measuring electrode is stated, the first circular shield electrode and the second circular shield electrode are grounded, wherein, the
The diameter of one circular shield electrode and the second circular shield electrode is all higher than the outer diameter of circular ring shape thin slice high-field electrode, thin rounded flakes
The diameter of measuring electrode is less than the internal diameter of circular ring shape thin slice high-field electrode.
The experimental rig of the resistivity at interface, passes through first between measurement silicon rubber according to embodiments of the present invention and fiberglass
Circular electrode and the second circular electrode can shield the volumetric energy for the fiberglass test product for flowing through silicon rubber test product and central through hole,
So as to ensure composite insulator performance, and then ensure the stable operation of electric system.
In addition, the experiment of the resistivity at interface fills between measurement silicon rubber according to the above embodiment of the present invention and fiberglass
It puts, can also have following additional technical characteristic：
Further, electrode leading-out piece is further included, one end of electrode leading-out piece is arranged on the circle of thin rounded flakes measuring electrode
At the heart, the other end stretches out the first through hole.
Further, electrode leading-out piece stretches out second through hole.
Further, the circle centre position of thin rounded flakes measuring electrode is provided with circular hole, and the circular hole is drawn for accommodate electrod
One end of part.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
It obtains substantially or is recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the knot of the experimental rig of the resistivity at interface between the measurement silicon rubber of one embodiment of the invention and fiberglass
Structure schematic diagram.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instructions such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
Show that signified device or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint are opposite
Importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
With reference to following description and attached drawing, it will be clear that these and other aspects of the embodiment of the present invention.In these descriptions
In attached drawing, some particular implementations in the embodiment of the present invention are specifically disclosed, to represent to implement the implementation of the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention
Embodiment includes falling into all changes, modification and the equivalent in the range of the spirit and intension of attached claims.
Below in conjunction with the resistivity at interface between attached drawing description measurement silicon rubber and fiberglass according to embodiments of the present invention
Experimental rig.
Fig. 1 is the knot of the experimental rig of the resistivity at interface between the measurement silicon rubber of one embodiment of the invention and fiberglass
Structure schematic diagram.It please refers to Fig.1, a kind of experimental rig for measuring the resistivity at interface between silicon rubber and fiberglass, which is characterized in that
Including silicon rubber 1, fiberglass 2, thin rounded flakes measuring electrode 4, circular ring shape thin slice high-field electrode 6, the first circular shield electrode 3,
Second circular shield electrode 7, power supply 10 and current measure device 8.
Wherein, thin rounded flakes measuring electrode 4 and circular ring shape thin slice high-field electrode 6 be arranged on silicon rubber 1 and fiberglass 2 it
Between, thin rounded flakes measuring electrode 4 and the diameter of the setting of 6 concentric of circular ring shape thin slice high-field electrode and thin rounded flakes measuring electrode 4
Less than the diameter of circular ring shape thin slice high-field electrode 6.Circular ring shape thin slice high-field electrode 6 and thin rounded flakes are surveyed using high-temperature seal adhesive
It is be bonded with fiberglass 2 close respectively to measure electrode 4.
First through hole is provided on fiberglass 2, the second through hole, thin rounded flakes are provided on the second circular shield electrode 7
The center of circle, first through hole and the second through hole of measuring electrode 4 are located on straight line.First circular shield electrode 3 is arranged far from
On the surface of the silicon rubber 1 of fiberglass 2, the second circular shield electrode 7 is arranged far from the surface of fiberglass 2 of silicon rubber 1.
Power supply 10 is connected with circular ring shape thin slice high-field electrode 6, and current sensing means 8 is thin by same first through hole and the second through hole and circle
The center of circle connection of piece measuring electrode 4 can measure the resistivity at interface between silicon rubber and fiberglass.First circular shield electrode 3
It is grounded with the second circular shield electrode 7.Wherein, the diameter of the first circular shield electrode 3 and the second circular shield electrode 7 is big
In the outer diameter of circular ring shape thin slice high-field electrode 6, the diameter of thin rounded flakes measuring electrode 4 is less than circular ring shape thin slice high-field electrode 6
Internal diameter.It is cooperated and shielded by the first circular shield electrode 3, the second circular shield electrode 7 and circular ring shape thin slice high-field electrode 6
The volumetric energy of the fiberglass test product 2 of silicon rubber test product 1 and central through hole is flowed through, protective resistance 9 plays a protective role to circuit.
In one embodiment of the invention, the experimental rig for measuring the resistivity at interface between silicon rubber and fiberglass also wraps
Electrode leading-out piece 5 is included, one end of electrode leading-out piece 5 is arranged on the circle centre position of thin rounded flakes measuring electrode 4, and the other end stretches out first
Through hole.By electrode leading-out piece 5 current measuring device can be made more convenient with the circle centre position of thin rounded flakes measuring electrode 4 into
Row connection, and electrode leading-out piece 5 can be to avoid interface between traverse measurement silicon rubber and fiberglass when not stretching out the second through hole
The experimental rig of resistivity is damaged by collision.
In one embodiment of the invention, the other end of electrode leading-out piece 5 further stretches out the second through hole, surveys electric current
The amount more convenient circle centre position with thin rounded flakes measuring electrode 4 of device is attached.
In one embodiment of the invention, the circle centre position of thin rounded flakes measuring electrode 4 is provided with circular hole, and the circular hole is used
In one end of accommodate electrod leading-out piece 5.
Specifically, go out to pre-set electrode leading-out piece 5 at the center of fiberglass 2, then by thin rounded flakes measuring electrode 4
One end that electrode leading-out piece 5 is connected with fiberglass 2 is fixed on, is conducive to find accurately the center of circle of thin rounded flakes measuring electrode 4.
In addition, the other structures for measuring the experimental rig of the resistivity at interface between silicon rubber and fiberglass of the embodiment of the present invention
Into and effect be all known for a person skilled in the art, in order to reduce redundancy, do not repeat.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is by claim and its equivalent limits.
Claims (4)
1. a kind of experimental rig for measuring the resistivity at interface between silicon rubber and fiberglass, which is characterized in that including silicon rubber
(1), fiberglass (2), thin rounded flakes measuring electrode (4), circular ring shape thin slice high-field electrode (6), the first circular shield electrode (3),
Second circular shield electrode (7), power supply and current measure device；
Thin rounded flakes measuring electrode (4) and circular ring shape thin slice high-field electrode (6) are arranged between silicon rubber (1) and fiberglass (2),
Thin rounded flakes measuring electrode (4) and circular ring shape thin slice high-field electrode (6) concentric are set,
Fiberglass is provided with first through hole on (2), and the second through hole, thin rounded flakes are provided on the second circular shield electrode (7)
The center of circle, the first through hole and second through hole of measuring electrode (4) are located on straight line,
First circular shield electrode (3) is arranged far from the surface of silicon rubber (1) of fiberglass (2), the second circular shield electricity
Pole (7) is arranged far from the surface of fiberglass (2) of silicon rubber (1),
The power supply is connected with circular ring shape thin slice high-field electrode (6), and the current sensing means passes through the first through hole and institute
The second through hole is stated, and is connected with the center of circle of the thin rounded flakes measuring electrode (4), the first circular shield electrode (3) and the second circle
Shape bucking electrode (7) is grounded；
Wherein, the diameter of the first circular shield electrode (3) and the second circular shield electrode (7) is all higher than circular ring shape thin slice high-voltage electricity
The outer diameter of pole (6), the diameter of thin rounded flakes measuring electrode (4) are less than the internal diameter of circular ring shape thin slice high-field electrode (6).
2. the experimental rig of the resistivity at interface, feature exist between measurement silicon rubber according to claim 1 and fiberglass
In, electrode leading-out piece (5) is further included, one end of electrode leading-out piece (5) is arranged on the circle centre position of thin rounded flakes measuring electrode (4),
The other end stretches out the first through hole.
3. the experimental rig of the resistivity at interface, feature exist between measurement silicon rubber according to claim 2 and fiberglass
In electrode leading-out piece (5) stretches out second through hole.
4. the experimental rig of the resistivity at interface, feature between the measurement silicon rubber and fiberglass according to Claims 2 or 3
It is, the circle centre position of thin rounded flakes measuring electrode (4) is provided with circular hole, and the circular hole is used for the one of accommodate electrod leading-out piece (5)
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610060214.7A CN105510716B (en) | 2016-01-28 | 2016-01-28 | Measure the experimental rig of the resistivity at interface between silicon rubber and fiberglass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610060214.7A CN105510716B (en) | 2016-01-28 | 2016-01-28 | Measure the experimental rig of the resistivity at interface between silicon rubber and fiberglass |
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| Publication Number | Publication Date |
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| CN105510716A CN105510716A (en) | 2016-04-20 |
| CN105510716B true CN105510716B (en) | 2018-05-29 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688141B (en) * | 2017-10-20 | 2023-12-29 | 广东电网有限责任公司电力科学研究院 | Interface of composite insulator Performance test system and method |
| CN107796988B (en) * | 2017-11-23 | 2023-05-16 | 广东电网有限责任公司电力科学研究院 | Surface resistivity measuring device and method for GIS basin-type insulator |
| CN110286301A (en) * | 2019-05-20 | 2019-09-27 | 广东电网有限责任公司 | A kind of simulated high-pressure cable intermediate joint interface creeping discharge test method |
| CN110221185B (en) * | 2019-05-20 | 2024-06-14 | 广东电网有限责任公司 | Simulation high-voltage cable intermediate head interface creeping discharge test device |
| CN112698102A (en) * | 2020-12-25 | 2021-04-23 | 广东电网有限责任公司电力科学研究院 | Method and device for testing interfacial resistivity of composite insulator sheath and core rod |
| CN113625053A (en) * | 2021-07-07 | 2021-11-09 | 广东电网有限责任公司广州供电局 | Cable, cable insulation interface resistance measuring circuit, method and device |
| CN114089062A (en) * | 2021-11-15 | 2022-02-25 | 广东电网有限责任公司 | Interface performance detection method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310372A (en) * | 2005-09-19 | 2008-11-19 | 开利公司 | Minimizing interface resistance through thermoelectric device by surface modification of thermoelectric material |
| CN102243274A (en) * | 2011-05-05 | 2011-11-16 | 昆明理工大学 | Method for measuring and calculating interface resistivity of Pb-Sn-Al laminated composite material |
| CN203350396U (en) * | 2013-05-22 | 2013-12-18 | 东莞市高能电气股份有限公司 | Composite insulator voltage aging testing apparatus |
| CN104733136A (en) * | 2015-02-27 | 2015-06-24 | 南方电网科学研究院有限责任公司 | DC disk-shaped suspension porcelain and glass insulator |
| CN104793055A (en) * | 2015-04-12 | 2015-07-22 | 盐城工学院 | Fabric surface specific resistance and volume specific resistance testing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2916856B1 (en) * | 2007-06-01 | 2009-12-04 | Commissariat Energie Atomique | METAL / SEMICONDUCTOR RESISTIVITY MEASURING DEVICE |
-
2016
- 2016-01-28 CN CN201610060214.7A patent/CN105510716B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310372A (en) * | 2005-09-19 | 2008-11-19 | 开利公司 | Minimizing interface resistance through thermoelectric device by surface modification of thermoelectric material |
| CN102243274A (en) * | 2011-05-05 | 2011-11-16 | 昆明理工大学 | Method for measuring and calculating interface resistivity of Pb-Sn-Al laminated composite material |
| CN203350396U (en) * | 2013-05-22 | 2013-12-18 | 东莞市高能电气股份有限公司 | Composite insulator voltage aging testing apparatus |
| CN104733136A (en) * | 2015-02-27 | 2015-06-24 | 南方电网科学研究院有限责任公司 | DC disk-shaped suspension porcelain and glass insulator |
| CN104793055A (en) * | 2015-04-12 | 2015-07-22 | 盐城工学院 | Fabric surface specific resistance and volume specific resistance testing device |
Non-Patent Citations (3)
| Title |
|---|
| 复合绝缘子断裂原因分析及缺陷评价方法;张福增 等;《高电压技术》;20121130;第38卷(第11期);第3093-3100页 * |
| 复合绝缘子断裂机理分析及建议;赵庆州;《广西电力》;20140630;第37卷(第3期);第77-81页 * |
| 超声法检测绝缘子用玻璃钢芯棒脆断裂纹的研究;梁曦东 等;《中国电极工程学报》;20050228;第25卷(第3期);第110-114页 * |
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