CN203909218U - Device for determination of insulation characteristics of oil paper - Google Patents
Device for determination of insulation characteristics of oil paper Download PDFInfo
- Publication number
- CN203909218U CN203909218U CN201420122642.4U CN201420122642U CN203909218U CN 203909218 U CN203909218 U CN 203909218U CN 201420122642 U CN201420122642 U CN 201420122642U CN 203909218 U CN203909218 U CN 203909218U
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- China
- Prior art keywords
- electrode
- casing
- insulation characteristic
- measuring paper
- lid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 43
- 230000001105 regulatory effect Effects 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 27
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 41
- 239000000123 paper Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- 238000011160 research Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 239000002828 fuel tank Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000015927 pasta Nutrition 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000013142 basic testing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
The utility model relates to a device for the determination of the insulation characteristics of oil paper. The device comprises an oil storage barrel, a cover and a casing, wherein the oil storage barrel, the cover and the casing are sequentially arranged. The test casing is sequentially provided with a fixed part, an electrode and a regulating part from inside to outside. By means of the device, various insulation faults, which might occur during the actual operation of a transformer, can be well simulated. The device can be directly used for guiding the construction of an ultrahigh-voltage power transmission system.
Description
Technical field:
The utility model relates to a kind of high voltage and insulation technology, more specifically relates to a kind of device of measuring paper oil insulation characteristic.
Background technology:
Country is during 12, and nearly ten of the UHVDC Transmission Lines that plan is gone into operation, this means that China will welcome the gold period of extra-high voltage cause fast development at once.But with the actual process of engineering does not conform to be, domestic to the basic research of main Electric Power Equipment Insulation characteristic on UHVDC Transmission Lines also in the starting stage, both do not carry out systematic experimental study, more do not drawn the conclusion that can make the common accreditation of engineering circles and educational circles.And the core status of converter power transformer in extra-high voltage direct-current system, again due to its specific position in system, its major insulation will be born the effect of the reversal of poles voltage under extra-high-voltage alternating current, extra-high voltage direct-current, extra-high-voltage alternating current stack direct current and extreme case simultaneously, and this just makes the basic test research of converter power transformer major insulation system insulation characteristic become particularly urgent.
The major insulation that the change of current becomes adopts oilpaper composite structure, domestic China Electric Power Research Institute, Tsing-Hua University, North China Electric Power University, Harbin University of Science and Technology etc. have carried out respectively experimental study to this composite insulation structure under extra-high-voltage alternating current, direct current, interchange stack direct current and reversal of poles, but still there is very large deficiency, these deficiencies are mainly reflected on test unit, and existing concrete analysis is as follows:
The insulation characterisitic of present each colleges and universities, research institution's Research on Oil paper system under laboratory condition, what great majority used is the test oil drum of a kind of acrylic or irony.What be positioned at this oil drum inside is test electrode system, this system is to be made up of two vertical relative test electrodes and the copper bar of connecting electrode and high-voltage connection, and use epoxy mount to be fixed, before each on-test, need to first open oil drum and adjust interelectrode distance, and then oiling, finally fuel tank sealing is started to test.This test oil drum be the earliest by Chinese DianKeYuan high pressure researchist submitted utility model application (application number: 201010285751.4 to; Application title: a kind of device for testing insulating property of high-voltage oiled paper).This device has been applied in the test of insulation characterisitic of tentatively probing into paper oil insulation structure effectively, but along with the needs of the deep and engineering reality of studying, we have to consider how to control the error that this device brings due to the deficiency in design---for example, after interelectrode distance is fixing, the vibrations that bring to the process of oiling in fuel tank and closed fuel tank, can make the electrode on support loosening to some extent, position has a little deviation, this will make interelectrode distance produce error, in the research that will carry out simultaneously, the interelectrode distance of most requirement is grade, that is to say that loosening 10% the error of just may bringing of 1mm---such error is to furtheing investigate the insulation characterisitic of oil-paper combination insulation system, particularly unacceptable for the insulation characterisitic research under small oil gap.The application, using that insulating property are outstanding, on the basis of the material of transformer oil good airproof performance, has made innovation and has improved at the aspect such as mode and the design of fuel tank shape of the relative position design of two electrodes, the method that regulates interelectrode distance, oiling.
Utility model content:
The purpose of this utility model is to provide a kind of device of measuring paper oil insulation characteristic.This device has well been simulated the multiple insulation fault that may occur in transformer actual motion, can directly apply to the construction of instructing system for ultra-high voltage transmission.
For achieving the above object, the utility model by the following technical solutions: a kind of device of measuring paper oil insulation characteristic, described device comprises the oil storage barrel, lid and the casing that set gradually; Described test casing is provided with successively fixture, electrode piece and regulating part from inside to outside.
A kind of device of measuring paper oil insulation characteristic that the utility model provides, described fixture comprises the clamping plate that are vertically set on described bottom half, the track of parallel its side that described clamping plate arrange by its side is fixed; Described side is respectively perpendicular to the symmetrical side of described casing.
A kind of device of measuring paper oil insulation characteristic that the utility model provides, described electrode piece comprises the electrode being vertically set on described clamping plate face, described electrode is connected with the described regulating part of casing outside with adaptor by connecting link successively.
Another preferred a kind of device of measuring paper oil insulation characteristic that the utility model provides, described connecting link is distinguished bottom surface vertical and described electrode and cylinder adaptor, and described connecting link is connected with described casing by the supporting mould that is arranged on described bottom half.
The preferred a kind of device of measuring paper oil insulation characteristic again that the utility model provides, described regulating part is milscale.
Another preferred a kind of device of measuring paper oil insulation characteristic that the utility model provides, two sides of described casing are respectively equipped with outlet, and described in one of them, outlet is oil-in, and described in another, outlet is oil-out.
Another preferred a kind of device of measuring paper oil insulation characteristic that the utility model provides, the material of described oil storage barrel, lid, casing and mould is acrylic material.
Another preferred a kind of device of measuring paper oil insulation characteristic that the utility model provides, described oil storage barrel comprises staving and pipeline; The pipeline that described staving connects by its barrel of bottom surface is connected with described lid, and described pipeline is provided with valve; The back up pad covering described in described staving is arranged on by vertical symmetry is arranged on and covers.
Another preferred a kind of device of measuring paper oil insulation characteristic that the utility model provides, described lid surrounding is provided with seal groove, in described seal groove, be provided with the O-ring seal of epoxy resin, described casing asked and is connected with described lid by described O-ring seal, and described case clamps by outside folder with lid.
Another preferred a kind of device of measuring paper oil insulation characteristic that the utility model provides, the material of described electrode, connecting link and adaptor is brass, and described electrode comprises ball-plate electrode, pin-plate electrode, plate-plate electrode, creeping discharge electrode and suspended discharge electrode.
Owing to having adopted technique scheme, the beneficial effect that the utility model obtains is:
1, the regulating system in the utility model is made up of two milscales, can accomplish to regulate accurately interelectrode distance, and can be outside bucket manual adjustments, so just can, by regulating interelectrode distance be put into last step that test is prepared, reduce the error that set-up procedure is brought; Electrode system and regulating system are horizontally disposed with simultaneously, have ensured that by adapter and stationary installation two systems can coaxial and equal rotational symmetry, avoided the variation of two electrode positions that vibrations bring, thereby reduced error;
2, the abort situation that in the utility model, operation often occurs for converter power transformer, simulated ball-plate, pin-plate, plate-plate, along the electrode model such as face, suspended discharge, can realize DC voltage, alternating voltage and alterating and direct current and depress the experiment of typical hydraulic oil/paper oil insulation, and then can obtain Characteristics of Partial Discharge and the breakdown characteristics of converter power transformer major insulation;
3, the utility model can be realized vacuum seal, and this has just ensured that test is not subject to the impact of extraneous factor, obtains infallible test figure;
4, the utility model has been paid special attention to the Material Selection of test unit, except being connected regulating system and electrode system, whole device all uses acrylic material to make, the advantages such as acrylic material itself has good insulation preformance, heat-resisting, physical strength is high, transparent, oil resistant; Low cost, size is little, is easy to observation, is designed to after box lid type structure also aspect very of operation, and the safety that this had both ensured in test has ensured that again whole process can observe process of the test, has taken into account the due mechanical hardness of this device simultaneously;
5, in the utility model, in the process of the test heating or vacuumize, there is transformer oil leakage phenomenon to occur for preventing, need sealing or exist oil to reveal dangerous place all to have used the O-ring seal and the folder that are used in specially on transformer all, can reach ideal sealing effectiveness;
6, mould of the present utility model can keep the connected copper bar of electrode to fix, and has well ensured that the electrode system of test is axisymmetric.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the main diagram of the utility model device;
Fig. 3 is the utility model device left view;
Wherein, 1-oil storage barrel, 2-valve, 3-seal groove, 4-electrode, 5-oil-out, 6-regulating part, 7-adaptor, 8-supporting mould, 9-track, 10-clamping plate, 11-oil-in, connecting link 12.
Embodiment
Below in conjunction with embodiment, utility model is described in further detail.
Embodiment 1:
1-3 as shown in the figure, the test unit of this routine utility model comprises the oil storage barrel 1, lid and the casing that set gradually, described oil storage barrel 1, lid, casing are acrylic material; Described casing is provided with successively fixture, electrode piece and regulating part 6 perpendicular to described fixture from inside to outside.
Described fixture comprises the clamping plate 10 that are vertically set on described bottom half, the track 9 of parallel its side that described clamping plate 10 arrange by its side is fixed connection, described side, can be conveniently to different-thickness, different big or small test product research experiment respectively perpendicular to the symmetrical side of described casing.Each plate face of described clamping plate 10 all connects an electrode piece at same position, and described electrode piece comprises the electrode 4 being arranged on 10, described clamping plate, and described electrode 4 is connected with the described regulating part 6 of casing outside with adaptor 7 by connecting link 12 successively.The bottom surface of the described web member vertical described electrode 4 of 12 difference and cylinder adaptor 7.The material of described electrode 4, connecting link 12 and adaptor 7 is brass, and described electrode 4 comprises ball-plate electrode, pin-plate electrode, plate-plate electrode, creeping discharge electrode and suspended discharge electrode, all detachable.The right cylinder that described adaptor 7 is made for brass, described adaptor 7 is connected described regulating part 6 respectively by the hole on its cylinder bottom surface with described connecting link 12, described adaptor 7 both can be incorporated into high pressure on electrode 4 smoothly, also can make whole electrode maintenance level, described connecting link 12 is connected with described casing by the supporting mould 8 that is arranged on described bottom half, two acrylic modules of described supporting mould 8 use are spliced, be adhered to described tank floor, be used for ensureing that two electrodes 4 are no matter in adjustable range process or can be relative with one heart in static situation.Each electrode is all connected with a described regulating part 6, and described regulating part 6 is milscale, and described milscale is fixed on described chamber external body, regulates two distances between electrode 4 in the situation that of can and not rocking casing at open cap not.
Two sides of described casing are respectively equipped with outlet, one of them outlet is for being located at the oil-in 11 of described casing top, another outlet is for being located at the oil-out 5 of described casing below, the in the situation that of can and not rocking casing at open cap not, described casing is carried out to the operation of oiling, oil extraction, oil strain.Described two outlets can be connected with the quick switching joint of oil filter, facilitate transformer oil turnover.
Described oil storage barrel 1 comprises staving and pipeline; The pipeline that described staving connects by its barrel of bottom surface is connected with described lid; The back up pad covering described in described staving is arranged on by vertical symmetry is arranged on and covers; Described pipeline is provided with valve 2, when described valve 2 is opened, oil storage barrel 1 is the entirety being communicated with lower part box, to in described casing when oiling, pasta can rise in oil storage barrel 1, when valve 2 turn-offs, described oil storage barrel 1 is separated two parts with lower part box, can play like this effect of good leakage test environment.
Described lid four limits are provided with seal groove 3, are provided with the O-ring seal that material is epoxy resin in described seal groove, and described casing clamps by outside folder with lid by reaching good sealing effectiveness and described casing between sealing circle and described lid.
At the trial, trial target cardboard is placed between described clamping plate, described clamping plate are fixed by track, the interface that test unit is provided with by its side is introduced oil, when completing after oiling, locking device, joint test circuit, at the outside manual adjustments milscale of casing, regulate two relative interelectrode distances, can pressurize and start test once described distance is set in testing requirements value.In the time of oiling in casing, the existence of oil storage barrel makes pasta can exceed the height of lid, and device to be exactly arranging of sealing can make external environment itself to test without any interference.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any amendment of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of this claim scope.
Claims (10)
1. a device of measuring paper oil insulation characteristic, is characterized in that: described device comprises the oil storage barrel, lid and the casing that set gradually; Described casing is provided with successively fixture, electrode piece and regulating part from inside to outside.
2. a kind of device of measuring paper oil insulation characteristic as claimed in claim 1, is characterized in that: described fixture comprises the clamping plate that are vertically set on described bottom half, and the track of parallel its side that described clamping plate arrange by its side is fixed; Described side is respectively perpendicular to the symmetrical side of described casing.
3. a kind of device of measuring paper oil insulation characteristic as claimed in claim 2, is characterized in that: described electrode piece comprises the electrode being vertically set on described clamping plate face, and described electrode is connected with the described regulating part of casing outside with adaptor by connecting link successively.
4. a kind of device of measuring paper oil insulation characteristic as claimed in claim 3, it is characterized in that: described connecting link is respectively perpendicular to the bottom surface of described electrode and cylinder adaptor, and described connecting link is connected with described casing by the supporting mould that is arranged on described bottom half.
5. a kind of device of measuring paper oil insulation characteristic as claimed in claim 1, is characterized in that: described regulating part is milscale.
6. a kind of device of measuring paper oil insulation characteristic as claimed in claim 1, is characterized in that: two sides of described casing are respectively equipped with outlet, and described in one of them, outlet is oil-in, and described in another, outlet is oil-out.
7. a kind of device of measuring paper oil insulation characteristic as claimed in claim 4, is characterized in that: the material of described oil storage barrel, lid, casing and mould is acrylic material.
8. a kind of device of measuring paper oil insulation characteristic as claimed in claim 1, is characterized in that: described oil storage barrel comprises staving and pipeline; The pipeline that described staving connects by its barrel of bottom surface is connected with described lid, and described pipeline is provided with valve; The back up pad covering described in described staving is arranged on by vertical symmetry is arranged on and covers.
9. a kind of device of measuring paper oil insulation characteristic as claimed in claim 1, it is characterized in that: described lid surrounding is provided with seal groove, in described seal groove, be provided with the O-ring seal of epoxy resin, described casing is connected by between described O-ring seal and described lid, and described case clamps by outside folder with lid.
10. a kind of device of measuring paper oil insulation characteristic as claimed in claim 2, it is characterized in that: the material of described electrode, connecting link and adaptor is brass, described electrode comprises ball-plate electrode, pin-plate electrode, plate-plate electrode, creeping discharge electrode and suspended discharge electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122642.4U CN203909218U (en) | 2014-03-19 | 2014-03-19 | Device for determination of insulation characteristics of oil paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122642.4U CN203909218U (en) | 2014-03-19 | 2014-03-19 | Device for determination of insulation characteristics of oil paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909218U true CN203909218U (en) | 2014-10-29 |
Family
ID=51783480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122642.4U Expired - Lifetime CN203909218U (en) | 2014-03-19 | 2014-03-19 | Device for determination of insulation characteristics of oil paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909218U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749499A (en) * | 2015-02-09 | 2015-07-01 | 广东电网有限责任公司电力科学研究院 | Movable testing system for transformer inter-turn insulating electrical aging simulation test |
| CN105044570A (en) * | 2015-07-01 | 2015-11-11 | 中国西电电气股份有限公司 | Mandrel material lightning impulse voltage withstanding test device |
| CN106324453A (en) * | 2016-08-15 | 2017-01-11 | 广东电网有限责任公司电力科学研究院 | Oil gap insulation discharging test platform |
| CN106646150A (en) * | 2016-10-28 | 2017-05-10 | 国家电网公司 | Movable type submersible pump insulation test container |
| CN108535610A (en) * | 2018-03-27 | 2018-09-14 | 哈尔滨理工大学 | A kind of experimental rig of transformer oil paper insulation void defects electric discharge research |
| CN108919077A (en) * | 2018-08-13 | 2018-11-30 | 清华大学深圳研究生院 | A kind of Hi-pot test device of insulating materials |
| CN112595946A (en) * | 2021-03-02 | 2021-04-02 | 奥顿电气集团有限公司 | Insulating paperboard electrical strength experiment electrode |
-
2014
- 2014-03-19 CN CN201420122642.4U patent/CN203909218U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749499A (en) * | 2015-02-09 | 2015-07-01 | 广东电网有限责任公司电力科学研究院 | Movable testing system for transformer inter-turn insulating electrical aging simulation test |
| CN105044570A (en) * | 2015-07-01 | 2015-11-11 | 中国西电电气股份有限公司 | Mandrel material lightning impulse voltage withstanding test device |
| CN105044570B (en) * | 2015-07-01 | 2018-01-09 | 中国西电电气股份有限公司 | A kind of mandrel material lightning impulse Withstand test device |
| CN106324453A (en) * | 2016-08-15 | 2017-01-11 | 广东电网有限责任公司电力科学研究院 | Oil gap insulation discharging test platform |
| CN106646150A (en) * | 2016-10-28 | 2017-05-10 | 国家电网公司 | Movable type submersible pump insulation test container |
| CN108535610A (en) * | 2018-03-27 | 2018-09-14 | 哈尔滨理工大学 | A kind of experimental rig of transformer oil paper insulation void defects electric discharge research |
| CN108919077A (en) * | 2018-08-13 | 2018-11-30 | 清华大学深圳研究生院 | A kind of Hi-pot test device of insulating materials |
| CN112595946A (en) * | 2021-03-02 | 2021-04-02 | 奥顿电气集团有限公司 | Insulating paperboard electrical strength experiment electrode |
| CN112595946B (en) * | 2021-03-02 | 2021-05-07 | 奥顿电气集团有限公司 | Insulating paperboard electrical strength experiment electrode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |