CN110389286A - A kind of measurement method for solid dielectric test print disruptive field intensity - Google Patents
A kind of measurement method for solid dielectric test print disruptive field intensity Download PDFInfo
- Publication number
- CN110389286A CN110389286A CN201811561776.5A CN201811561776A CN110389286A CN 110389286 A CN110389286 A CN 110389286A CN 201811561776 A CN201811561776 A CN 201811561776A CN 110389286 A CN110389286 A CN 110389286A
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- Prior art keywords
- field intensity
- pressure ball
- ball electrode
- disruptive field
- test print
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Classifications
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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
- 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
- G01B21/02—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 length, width, or thickness
- G01B21/08—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 length, width, or thickness for measuring thickness
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
A kind of measurement method of the disruptive field intensity for solid dielectric test print, belongs to high-voltage isulation research field.The present invention includes pressure regulator, experimental transformer, protective resistance, disruptive field intensity measuring table, ground wire；Pressure regulator is correctly connected with experimental transformer and is contacted good；One end of protective resistance is connected with experimental transformer, and the other end is connected with disruptive field intensity measuring table；Conductive tray in disruptive field intensity measuring table is connected with ground wire and contacts good.
Description
Technical field
The present invention relates to the measurement methods for solid dielectric test print disruptive field intensity, belong to high-voltage isulation research neck
Domain.
Background technique
As the voltage class of electrical equipment is continuously improved, the insulation performance of insulating materials is required also to be continuously improved.In
In power grid, the breakdown of solid insulation can cause very big harm to whole system, therefore, the research to solid dielectric disruptive field intensity
It is particularly important.
Studying the usual way of solid insulation in the lab is that solid dielectric is made to certain thickness test print,
The breakdown voltage of sample is first measured, then measures the thickness that breakdown occurs and removes with Thickness Measurement by Microwave instrument.But solid dielectric punctures
Afterwards, passing through due to huge current flow often makes Solid dielectric breakdown along with melting, burning appearance with crackle in medium
The pattern at place changes, to be unable to measure the exact thickness at breakdown.And the pull rod one at the top of traditional Thickness Measurement by Microwave instrument
It is directly in movable state, in this way due to the effect between the buoyancy of insulating oil and immersion sample and electrode, so that sample thickness
Measurement be inaccurate, so as to cause the disruptive field intensity that can not accurately calculate sample.
Summary of the invention
The purpose of the present invention is overcoming the problems, such as that the measurement of conventional solid dielectric sample disruptive field intensity exists, one is provided
Measurement method of the kind for solid dielectric test print disruptive field intensity.
The present invention is used for the measurement method of solid insulating material disruptive field intensity, it includes pressure regulator, experimental transformer, protection
Resistance, disruptive field intensity measuring table, ground wire.
Pressure regulator is connected with experimental transformer；One end of protective resistance is connected with experimental transformer, the other end and breakdown
Field strength measurement platform is connected；Conductive tray in disruptive field intensity measuring table is connected with ground wire.
Further, the disruptive field intensity measuring table includes insulated pull rod, lever, bar, nut, thickness instrument
Disk, insulating support, high pressure ball electrode, insulation oil groove；Low pressure ball electrode；Conductive tray；Insulator foot；Test print；Transformer
Oil；Bar is fixed in insulated pull rod；Presses lever lifts insulated pull rod；Test print is put into high pressure ball electrode and low
Lever is unclamped again between pressure ball electrode；Thickness instrument board shows the i.e. solid dielectric test print of height that insulated pull rod is lifted
Thickness d, precision are 1 micron；It tightens nut and rotate lever can not to prevent transformer oil from pouring into back stay and float and survey thickness
Amount inaccuracy；Transformer oil is poured into insulation oil groove, highly should be higher than that at the top of high-field electrode；High pressure ball electrode and insulated pull rod
It is connected with stud；The centre of sphere of high pressure ball electrode and low pressure ball electrode on the straight line where pull rod with guarantee test print
The accuracy of thickness measure；Low pressure ball electrode passes through insulating oil trench bottom inner wall and with insulating oil trench bottom outer wall in same plane
On, it is pierced by glass glue bond in gap at position, to prevent transformer oil from revealing；It is pierced by the bottom of the low pressure ball electrode of insulation oil groove
Face and conductive tray are in close contact；Adjusting pressure regulator rises voltage with the speed of 2kV/s, and electricity is write down when sample punctures
Press the maximum value U of registration；The disruptive field intensity of sample is found out according to formula E=U/d.
Further, the high pressure ball electrode 12 and low pressure ball electrode 14 are brass electrode, diameter 15mm.
Further, the conductive tray 15 is brass material, 2/3 of diameter not less than insulation 13 diameter of oil groove.
The beneficial effects of the present invention are: 1, relative to conventional measurement thickness gauge to insulation sample thickness measurement inaccuracy, this
Method can accurately measure the thickness of solid insulation sample.2, low pressure ball electrode can be together with insulation oil groove and measuring table point
From, compared to traditional measurement method, when changing transformer oil do not have to low pressure pole is taken out from oil, change oil more convenient.3, our
Method makes the thickness of solid insulation sample and breakdown voltage while accurately being measured, then accurate breakdown field is obtained by calculation
By force.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present invention for solid dielectric disruptive field intensity measurement method；
Fig. 2 is disruptive field intensity measuring table structural schematic diagram of the present invention；
In figure: pressure regulator 1, experimental transformer 2, protective resistance 3, disruptive field intensity measuring table 4, ground wire 5, insulated pull rod 6, lever
7, bar 8, nut 9, thickness instrument board 10, insulating support 11, high pressure ball electrode 12, insulation oil groove 13；Low pressure ball electrode 14；It leads
Electric pallet 15；Insulator foot 16；Test print 17；Transformer oil 18.
Specific embodiment
It elaborates with reference to the accompanying drawing to embodiment of the present invention.
Specific embodiment 1: embodiment of the present invention provides a kind of measurement for solid dielectric disruptive field intensity
Method, it includes pressure regulator 1, experimental transformer 2, protective resistance 3, disruptive field intensity measuring table 4, ground wire 5；By pressure regulator 1 with
Experimental transformer 2 correctly connects and contact is good；One end of protective resistance 3 is connected with experimental transformer 2, the other end and breakdown
Field strength measurement platform 4 is connected；Conductive tray 15 in disruptive field intensity measuring table 4 is connected with ground wire 5 and contacts good.
Specific embodiment 2: present embodiment is described further embodiment one, the disruptive field intensity measurement
Platform 4 include insulated pull rod 6, lever 7, bar 8, nut 9, thickness instrument board 10, insulating support 11, high pressure ball electrode 12, absolutely
Edge oil groove 13；Low pressure ball electrode 14；Conductive tray 15；Insulator foot 16；Test print 17；Transformer oil 18；Bar 8 is fixed
In insulated pull rod 6；Presses lever 7 lifts insulated pull rod 6；Test print 17 is put into high pressure ball electrode 12 and low pressure ball electricity
Lever 7 is unclamped again between pole 14；Thickness instrument board 10 shows the i.e. solid dielectric test print of height that insulated pull rod is lifted
Thickness d, precision are 1 micron；It tightens nut 9 and rotate lever 7 can not to prevent transformer oil 18 from pouring into back stay and float and make thickness
Degree measurement inaccuracy；Transformer oil 18 is poured into insulation oil groove 13, highly should be higher than that 12 top of high-field electrode；High pressure ball electrode
12 are connect with insulated pull rod 6 with stud；The centre of sphere of high pressure ball electrode 12 and low pressure ball electrode 14 is the same as straight where pull rod 6
With the accuracy of guarantee test print thickness measure on line；Low pressure ball electrode 14 pass through insulation 13 bottom interior wall of oil groove and with insulation
13 bottom outer wall of oil groove in the same plane, is pierced by glass glue bond in gap at position, to prevent transformer oil 18 from revealing；It wears
The bottom surface of the low pressure ball electrode 14 of insulation oil groove 13 and conductive tray 15 are in close contact out；Adjusting pressure regulator makes voltage with 2kV/s
Speed rise, the maximum value U of voltage readings is write down when sample punctures；The breakdown of sample is found out according to formula E=U/d
Field strength.
Specific embodiment 3: present embodiment is described further embodiment two, the high pressure ball electrode 12
It is brass electrode, diameter 15mm with low pressure ball electrode 14.
Specific embodiment 4: present embodiment is described further embodiment two, the conductive tray 15 is
Brass material, 2/3 of diameter not less than insulation 13 diameter of oil groove.
Claims (4)
1. it is a kind of for solid dielectric test print disruptive field intensity measurement method, it is characterised in that: including pressure regulator 1,
Experimental transformer 2, protective resistance 3, disruptive field intensity measuring table 4, ground wire 5；Pressure regulator 1 is correctly connect with experimental transformer 2
And contact is good；One end of protective resistance 3 is connected with experimental transformer 2, and the other end is connected with disruptive field intensity measuring table 4
It connects；Conductive tray 15 in disruptive field intensity measuring table 4 is connected with ground wire 5 and contacts good.
2. a kind of disruptive field intensity measurement method for solid dielectric test print according to claim 1, feature
Be: the disruptive field intensity measuring table 4 includes insulated pull rod 6, lever 7, bar 8, nut 9, thickness instrument board 10, insulation
Bracket 11, high pressure ball electrode 12, insulation oil groove 13；Low pressure ball electrode 14；Conductive tray 15；Insulator foot 16；Test print 17；
Transformer oil 18；Bar 8 is fixed in insulated pull rod 6；Presses lever 7 lifts insulated pull rod 6；Test print 17 is put into
Lever 7 is unclamped again between high pressure ball electrode 12 and low pressure ball electrode 14；Thickness instrument board 10 shows the height that insulated pull rod is lifted
Degree is the thickness d of solid dielectric test print, and precision is 1 micron；Tightening nut 9 rotate lever 7 can not to prevent transformation
Device oil 18, which pours into back stay and floats, keeps thickness measure inaccurate；Transformer oil 18 is poured into insulation oil groove 13, highly should be higher than that
12 top of high-field electrode；High pressure ball electrode 12 is connect with insulated pull rod 6 with stud；High pressure ball electrode 12 and low pressure ball electrode
14 centre of sphere on the straight line where pull rod 6 with the accuracy of guarantee test print thickness measure；Low pressure ball electrode 14 passes through
Insulate 13 bottom interior wall of oil groove and with insulation 13 bottom outer wall of oil groove in the same plane, be pierced by glass gluing in gap at position
It closes, to prevent transformer oil 18 from revealing；The bottom surface for being pierced by the low pressure ball electrode 14 of insulation oil groove 13 closely connects with conductive tray 15
Touching；Adjusting pressure regulator rises voltage with the speed of 2kV/s, and the maximum value U of voltage readings is write down when sample punctures；Root
The disruptive field intensity of sample is found out according to formula E=U/d.
3. a kind of measurement method for solid dielectric test print disruptive field intensity according to claim 2, feature
Be: the high pressure ball electrode 12 and low pressure ball electrode 14 is brass electrode, diameter 15mm.
4. a kind of measurement method for solid dielectric test print disruptive field intensity according to claim 3, feature
Be: the conductive tray 15 is brass material, 2/3 of diameter not less than insulation 13 diameter of oil groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561776.5A CN110389286A (en) | 2018-12-20 | 2018-12-20 | A kind of measurement method for solid dielectric test print disruptive field intensity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811561776.5A CN110389286A (en) | 2018-12-20 | 2018-12-20 | A kind of measurement method for solid dielectric test print disruptive field intensity |
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| CN110389286A true CN110389286A (en) | 2019-10-29 |
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710627A (en) * | 1952-10-01 | 1954-06-16 | British Tabulating Mach Co Ltd | Improvements in or relating to sheet perforating apparatus |
| JP2002234930A (en) * | 2001-02-07 | 2002-08-23 | Iwakkusu Kk | Polyurethane foam suitable for gas lighter filter and gas lighter using filter made of the polyurethane foam |
| JP2005187809A (en) * | 2003-12-02 | 2005-07-14 | Toray Ind Inc | Resin composition and its production process |
| CN101793939A (en) * | 2009-09-18 | 2010-08-04 | 重庆大学 | Partial discharge simulation experiment device of suspended metal particles in oil of transformer |
| CN102338843A (en) * | 2010-07-26 | 2012-02-01 | 重庆大学 | Apparatus and method for detecting partial discharge of power transformer by utilizing fluorescence fiber |
| CN103913682A (en) * | 2014-03-28 | 2014-07-09 | 重庆大学 | Insulating gas insulating performance experiment system and method thereof applied to electrical equipment |
| CN103941128A (en) * | 2014-05-06 | 2014-07-23 | 国家电网公司 | Transformer electrical fault simulation device |
| CN204027983U (en) * | 2014-07-14 | 2014-12-17 | 山东科技大学 | A kind of Mg alloy surface thin liquid film electrochemical experimental device |
| CN204086472U (en) * | 2014-06-18 | 2015-01-07 | 国家电网公司 | A kind of insulation defect simulation test device for oil-filled transformer |
| CN204832438U (en) * | 2015-08-18 | 2015-12-02 | 国网江西省电力公司南昌供电分公司 | Transformer internal discharge trouble analogue test device based on signal acquisition discharges |
| CN105182198A (en) * | 2015-09-14 | 2015-12-23 | 哈尔滨理工大学 | Electrode device capable of measuring thin film electric breakdown performance at variable temperature |
| CN205427123U (en) * | 2016-03-16 | 2016-08-03 | 哈尔滨理工大学 | A corona initiation experimental apparatus for solid dielectric |
| JP2018063166A (en) * | 2016-10-13 | 2018-04-19 | 株式会社日立製作所 | Ester oil-filled electric apparatus, ester oil-filled transformer and analysis method of aldehyde compound contained in ester oil |
| CN207352120U (en) * | 2017-10-20 | 2018-05-11 | 哈尔滨理工大学 | A kind of electrode assembly of efficiently test breakdown performance |
| CN207636696U (en) * | 2017-11-28 | 2018-07-20 | 哈尔滨理工大学 | A kind of improvement device for the experiment of insulating materials alternating temperature alternating current breakdown |
| CN207780120U (en) * | 2018-01-31 | 2018-08-28 | 天津市新科华电力电器设备有限公司 | A kind of Voltage Withstand Test of Insulating Oil instrument |
-
2018
- 2018-12-20 CN CN201811561776.5A patent/CN110389286A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB710627A (en) * | 1952-10-01 | 1954-06-16 | British Tabulating Mach Co Ltd | Improvements in or relating to sheet perforating apparatus |
| JP2002234930A (en) * | 2001-02-07 | 2002-08-23 | Iwakkusu Kk | Polyurethane foam suitable for gas lighter filter and gas lighter using filter made of the polyurethane foam |
| JP2005187809A (en) * | 2003-12-02 | 2005-07-14 | Toray Ind Inc | Resin composition and its production process |
| CN101793939A (en) * | 2009-09-18 | 2010-08-04 | 重庆大学 | Partial discharge simulation experiment device of suspended metal particles in oil of transformer |
| CN102338843A (en) * | 2010-07-26 | 2012-02-01 | 重庆大学 | Apparatus and method for detecting partial discharge of power transformer by utilizing fluorescence fiber |
| CN103913682A (en) * | 2014-03-28 | 2014-07-09 | 重庆大学 | Insulating gas insulating performance experiment system and method thereof applied to electrical equipment |
| CN103941128A (en) * | 2014-05-06 | 2014-07-23 | 国家电网公司 | Transformer electrical fault simulation device |
| CN204086472U (en) * | 2014-06-18 | 2015-01-07 | 国家电网公司 | A kind of insulation defect simulation test device for oil-filled transformer |
| CN204027983U (en) * | 2014-07-14 | 2014-12-17 | 山东科技大学 | A kind of Mg alloy surface thin liquid film electrochemical experimental device |
| CN204832438U (en) * | 2015-08-18 | 2015-12-02 | 国网江西省电力公司南昌供电分公司 | Transformer internal discharge trouble analogue test device based on signal acquisition discharges |
| CN105182198A (en) * | 2015-09-14 | 2015-12-23 | 哈尔滨理工大学 | Electrode device capable of measuring thin film electric breakdown performance at variable temperature |
| CN205427123U (en) * | 2016-03-16 | 2016-08-03 | 哈尔滨理工大学 | A corona initiation experimental apparatus for solid dielectric |
| JP2018063166A (en) * | 2016-10-13 | 2018-04-19 | 株式会社日立製作所 | Ester oil-filled electric apparatus, ester oil-filled transformer and analysis method of aldehyde compound contained in ester oil |
| CN207352120U (en) * | 2017-10-20 | 2018-05-11 | 哈尔滨理工大学 | A kind of electrode assembly of efficiently test breakdown performance |
| CN207636696U (en) * | 2017-11-28 | 2018-07-20 | 哈尔滨理工大学 | A kind of improvement device for the experiment of insulating materials alternating temperature alternating current breakdown |
| CN207780120U (en) * | 2018-01-31 | 2018-08-28 | 天津市新科华电力电器设备有限公司 | A kind of Voltage Withstand Test of Insulating Oil instrument |
Non-Patent Citations (5)
| Title |
|---|
| T. KURIHARA等: "Tensile strength of thermally degraded resin-coated papers and their electrical breakdown strength in composite insulation system with insulation oil", 《 2008 INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATING MATERIALS (ISEIM 2008)》 * |
| ZHAO TAO等: "Breakdown characteristics of transformer oil insulation under impulse voltage with different waveform parameters", 《2017 IEEE ELECTRICAL INSULATION CONFERENCE (EIC)》 * |
| 唐炬等: "绝缘油中悬移微粒放电特性实验平台构建", 《高电压技术》 * |
| 张晓虹等: "PE/MMT纳米复合材料的电击穿与耐局放性能", 《高电压技术》 * |
| 张杰等: "1200kv封闭式气体绝缘试验变压器的设计研究", 《变压器》 * |
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Application publication date: 20191029 |