CN108680845A - Paper oil insulation electric heating combines stress ageing test apparatus and its test method - Google Patents
Paper oil insulation electric heating combines stress ageing test apparatus and its test method Download PDFInfo
- Publication number
- CN108680845A CN108680845A CN201810607115.5A CN201810607115A CN108680845A CN 108680845 A CN108680845 A CN 108680845A CN 201810607115 A CN201810607115 A CN 201810607115A CN 108680845 A CN108680845 A CN 108680845A
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- chamber
- paper oil
- oil insulation
- steel container
- electric heating
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- 238000009413 insulation Methods 0.000 title claims abstract description 61
- 230000032683 aging Effects 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000005485 electric heating Methods 0.000 title claims abstract description 19
- 230000035882 stress Effects 0.000 title claims abstract description 19
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 2
- 238000005070 sampling Methods 0.000 claims 1
- 230000005684 electric field Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 46
- 238000011160 research Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- G01R31/16—Construction of testing vessels; Electrodes therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The present invention relates to a kind of paper oil insulation electric heating joint stress ageing test apparatus and its test methods, including chamber, it is provided with to contain the rustless steel container of insulating oil in the chamber, it is touched with bottom connection in chamber rustless steel container bottom surface, bottom is provided with to place the grounding electrode of paper oil insulation sample in the rustless steel container, rustless steel container upper cover is equipped with insulated enclosure plate, and the high-field electrode that paper oil insulation sample is matched for clamping tightly with grounding electrode is provided with above grounding electrode；It is provided with heating device in the chamber.Paper oil insulation electric heating joint stress ageing test apparatus of the present invention is easy to operate, it is easy to use, it will influence the principal element temperature of paper oil insulation aging, electric field combines, paper oil insulation sample, insulating oil are sampled by stages and compared and analyzed, its insulation ag(e)ing characteristic parameter is measured, the aging rule of paper oil insulation can be more accurately studied.
Description
Technical field
The present invention relates to a kind of paper oil insulation electric heating joint stress ageing test apparatus and its test methods, belong to transformer
Oil paper insulation ageing state detection technique field.
Background technology
The compound inslation that insulation in transformer is mainly made of mineral oil and insulating paper or insulating board, long-term
Insulating materials is influenced and gradual aging by various aging actions in operational process, and it includes mainly temperature to cause the factor of aging
The factors such as degree, electric field, magnetic field, machinery.Currently, there is no the equipment for being specifically intended for research transformer oil Aging of Oil-paper Insulation in Oil rule, make
Obtaining paper oil insulation aging rule and the relationship of each factor can not grasp.
Invention content
In view of this, the object of the present invention is to provide a kind of easy to use, paper oil insulation aging rule can be accurately studied
The paper oil insulation electric heating joint stress ageing test apparatus and its test method of rule.
The present invention is realized using following scheme：A kind of paper oil insulation electric heating joint stress ageing test apparatus, including experiment
Case is provided in the chamber to contain the rustless steel container of insulating oil, rustless steel container bottom surface and bottom in chamber
It is in contact, bottom is provided with to place the grounding electrode of paper oil insulation sample in the rustless steel container, on rustless steel container
It is covered with insulated enclosure plate, the high-field electrode for being matched for clamping tightly paper oil insulation sample with grounding electrode is provided with above grounding electrode；
It is provided with heating device in the chamber.
Further, further include being located at the pressure regulator being connected with power supply outside chamber, the pressure regulator and a transformation
Device is connected, and the high-field electrode is connected through high-voltage connection with the high-pressure side of transformer, and position is provided on the high-voltage connection
Water resistance outside chamber.
Further, it is equipped with the insulating sleeve penetrated for high-voltage connection at the top of the chamber, is opened on insulated enclosure plate
Equipped with the perforation passed through for high-voltage connection；It is additionally provided with the capacitor being arranged in parallel with high-field electrode outside the chamber and divides
Depressor.
Further, the heating device uses electrical heating, and control heating device work is provided in the chamber
Temp controlled meter.
Further, the grounding electrode is disk-shaped, and the high-field electrode includes plate body and is located under plate body
There is tip, the shank totally 9 and to be scattered in two circles for the shank of side, shank lower end, wherein 6 shanks are located at outer ring and in six
Side shape distribution, in addition 3 shanks are located at inner ring and distribution triangular in shape.
Further, the grounding electrode is disk-shaped, and the high-field electrode is column.
A kind of test method of paper oil insulation electric heating joint stress ageing test apparatus as described above, includes the following steps：
（1）The vacuum drying of paper oil insulation sample, vacuum oil immersion are placed on the grounding electrode in rustless steel container and between high-field electrode；
（2）A certain amount of insulating oil is added into rustless steel container, the highly desirable of insulating oil did not had high-field electrode；（3）Stainless steel is held
Device is put into after covering insulated enclosure plate in chamber, and the high-voltage connection of high-field electrode is pierced by the high-pressure side of insulating sleeve and transformer
It is connected, chamber is then heated to set temperature；（4）Paper oil insulation sample, insulating oil are sampled by stages and carried out to score
Analysis, measures its insulation ag(e)ing characteristic parameter.
Compared with prior art, the invention has the advantages that：Paper oil insulation electric heating of the present invention combines stress aging
Experimental rig is easy to operate, easy to use, will influence the principal element temperature of paper oil insulation aging, electric field combines, to oil
Paper insulation sample, insulating oil are sampled and are compared and analyzed by stages, are measured its insulation ag(e)ing characteristic parameter, can more accurately be ground
The aging rule for studying carefully paper oil insulation has filled up the technological gap of research paper oil insulation aging rule.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, specific embodiment and phase will be passed through below
Attached drawing is closed, invention is further described in detail.
Description of the drawings
Fig. 1 is organigram of the embodiment of the present invention；
Fig. 2 is chamber internal structure schematic diagram in the embodiment of the present invention；
Fig. 3 is needle point formula structure high-field electrode organigram in the embodiment of the present invention；
Fig. 4 is column structure high-field electrode and grounding electrode cooperation schematic diagram in the embodiment of the present invention；
Figure label explanation：100- chambers, 110- rustless steel containers, 120- paper oil insulations sample, 130- grounding electrodes, 140-
Insulated enclosure plate, 150- high-field electrodes, 151- plate bodys, 152- shanks, 160- insulating sleeves, 170- temp controlled meters, 180- insulation
Oil, 200- pressure regulators, 300- transformers, 400- water resistances, 500- capacitors, 600- divider.
Specific implementation mode
As shown in Fig. 1 ~ 4, a kind of paper oil insulation electric heating joint stress ageing test apparatus, including chamber 100, chamber
100 be constant temperature ageing oven, is provided with to contain the rustless steel container 110 of insulating oil 180 in the chamber 100, no
Becoming rusty, 110 bottom surface of steel container is tactile with bottom connection in chamber, and grounding electrode is touched with rustless steel container bottom connection, rustless steel container
Bottom is touched with chamber bottom connection, and reliable ground is realized by testing box enclosure；Bottom is arranged in the rustless steel container 110
There is the grounding electrode 130 for placing paper oil insulation sample 120,110 upper cover of rustless steel container is equipped with insulated enclosure plate 140, connects
It is provided with the high-field electrode 150 that paper oil insulation sample 120 is matched for clamping tightly with grounding electrode above ground electrode；It is set in the chamber
It is equipped with heating device（It is not shown in figure）；Grounding electrode and high-field electrode can give paper oil insulation sample to apply specified electric-field strength
It spends, the temperature in heating device energy Control experiment case, can electric heating combined stress, the present invention be applied to paper oil insulation sample simultaneously
Experimental rig will influence the principal element temperature of paper oil insulation aging, electric field combines, be suitable for it is a variety of in the case of experiment,
Variable is controllable, samples and compares and analyzes by stages to paper oil insulation sample, insulating oil, measures its insulation ag(e)ing characteristic parameter, more
The aging rule for adding accurately research paper oil insulation, has filled up the technological gap of research paper oil insulation aging rule.
In the present embodiment, further include the pressure regulator 200 for being located at 100 outside of chamber and being connected with power supply, the pressure regulation
Device 200 is connected with a transformer 300, and the high-field electrode 150 is connected through high-voltage connection with the high-pressure side of transformer 300,
The water resistance 400 being provided on the high-voltage connection outside chamber.
In the present embodiment, 100 top of the chamber is equipped with the insulating sleeve 160 penetrated for high-voltage connection, insulation
The perforation passed through for high-voltage connection is offered on sealing plate 140；Set in parallel with high-field electrode is additionally provided with outside the chamber
The capacitor 500 and divider 600 set.
In the present embodiment, the heating device uses electrical heating, and control heating device work is provided in the chamber
The temp controlled meter 170 of work.
In the present embodiment, grounding electrode and high-field electrode are copper material, and the grounding electrode 130 is disk-shaped, and
There are two types of the structures of high-field electrode, and one is the needle point formula structures for testing corona discharge aging conditions, and another kind is to be used for
The column structure of creeping discharge aging conditions is tested, the wherein high-field electrode 150 of needle point formula structure includes plate body 151 and position
Shank 152 on the downside of plate body, it is 28 ° that shank lower end, which has tip, tip wedge angle angle, and the shank 9 and is distributed totally
At two circles, wherein 6 shanks are located at outer ring and hexagonal distribution, in addition 3 shanks are located at inner ring and distribution triangular in shape；Column
The high-field electrode of formula structure is column.The high-field electrode of two kinds of structures can be replaced according to experimental conditions.
A kind of test method of paper oil insulation electric heating joint stress ageing test apparatus as described above, includes the following steps：
（1）The vacuum drying of paper oil insulation sample, vacuum oil immersion are placed on the grounding electrode in rustless steel container and between high-field electrode；
（2）A certain amount of insulating oil is added into rustless steel container, the highly desirable of insulating oil did not had high-field electrode；（3）Stainless steel is held
Device is put into after covering insulated enclosure plate in chamber, and the high-voltage connection of high-field electrode is pierced by the high-pressure side of insulating sleeve and transformer
It is connected, chamber is then heated to set temperature；（4）Paper oil insulation sample, insulating oil are sampled by stages and carried out to score
Analysis, measures its insulation ag(e)ing characteristic parameter.
In the present embodiment, it before paper oil insulation sample is put into rustless steel container, needs to be selected according to experimental conditions real
High-field electrode used is tested, test corona discharge aging conditions then use the high-field electrode of needle point formula structure, test creeping discharge
Aging conditions then use the high-field electrode of column structure.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of paper oil insulation electric heating combines stress ageing test apparatus, it is characterised in that：Including chamber, in the chamber
It is provided with to contain the rustless steel container of insulating oil, rustless steel container bottom surface is touched with bottom connection in chamber, described stainless
Bottom is provided with to place the grounding electrode of paper oil insulation sample in steel container, and rustless steel container upper cover is equipped with insulated enclosure
Plate, grounding electrode top are provided with the high-field electrode that paper oil insulation sample is matched for clamping tightly with grounding electrode；It is set in the chamber
It is equipped with heating device.
2. paper oil insulation electric heating according to claim 1 combines stress ageing test apparatus, it is characterised in that：It further include position
The pressure regulator being connected with power supply outside chamber, the pressure regulator are connected with a transformer, and the high-field electrode is through height
Voltage lead wires are connected with the high-pressure side of transformer, the water resistance being provided on the high-voltage connection outside chamber.
3. paper oil insulation electric heating according to claim 2 combines stress ageing test apparatus, it is characterised in that：The experiment
Box top is equipped with the insulating sleeve penetrated for high-voltage connection, and the perforation passed through for high-voltage connection is offered on insulated enclosure plate；
The capacitor and divider being arranged in parallel with high-field electrode are additionally provided with outside the chamber.
4. paper oil insulation electric heating according to claim 1 combines stress ageing test apparatus, it is characterised in that：The heating
Device uses electrical heating, and the temp controlled meter of control heating device work is provided in the chamber.
5. paper oil insulation electric heating according to claim 1 combines stress ageing test apparatus, it is characterised in that：The ground connection
Electrode is disk-shaped, and the high-field electrode includes plate body and the shank on the downside of plate body, and shank lower end has tip,
The shank totally 9 and is scattered in two circles, wherein 6 shanks are located at outer ring and hexagonal distribution, in addition 3 shanks are located at interior
Circle and distribution triangular in shape.
6. paper oil insulation electric heating according to claim 1 combines stress ageing test apparatus, it is characterised in that：The ground connection
Electrode is disk-shaped, and the high-field electrode is column.
7. a kind of test method of paper oil insulation electric heating joint stress ageing test apparatus as claimed in claim 3, feature exist
In：Include the following steps：（1）The vacuum drying of paper oil insulation sample, vacuum oil immersion are placed on the electricity of the ground connection in rustless steel container
Between pole and high-field electrode；（2）A certain amount of insulating oil is added into rustless steel container, the highly desirable of insulating oil did not had high-voltage electricity
Pole；（3）It is put into chamber after rustless steel container is covered insulated enclosure plate, the high-voltage connection of high-field electrode is pierced by insulating sleeve
It is connected with the high-pressure side of transformer, chamber is then heated to set temperature；（4）To paper oil insulation sample, insulation oil
Phase sampling compares and analyzes, and measures its insulation ag(e)ing characteristic parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607115.5A CN108680845A (en) | 2018-06-13 | 2018-06-13 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810607115.5A CN108680845A (en) | 2018-06-13 | 2018-06-13 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108680845A true CN108680845A (en) | 2018-10-19 |
Family
ID=63810960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810607115.5A Pending CN108680845A (en) | 2018-06-13 | 2018-06-13 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
Country Status (1)
| Country | Link |
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| CN (1) | CN108680845A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060645A (en) * | 2018-10-29 | 2018-12-21 | 国网湖南省电力有限公司 | A kind of paper oil insulation material electric-thermal joint burn-in test test method and device |
| CN109917212A (en) * | 2019-04-03 | 2019-06-21 | 西安交通大学 | The experimental system and method for a kind of simulation converter power transformer inside electric heating stress |
| CN109946548A (en) * | 2019-04-19 | 2019-06-28 | 国网四川省电力公司电力科学研究院 | A kind of electric heating joint aging equipment suitable for impacting electric capacity device polypropylene film |
| CN112067438A (en) * | 2020-08-19 | 2020-12-11 | 四川大学 | Organic material aging test platform under coexistence of electric field, heat and compression |
| CN112731074A (en) * | 2020-12-17 | 2021-04-30 | 深圳供电局有限公司 | Oil paper insulation aging test system |
| CN113075505A (en) * | 2021-03-25 | 2021-07-06 | 哈尔滨理工大学 | Insulating material electric-heat combined aging test device |
| CN114152846A (en) * | 2021-11-26 | 2022-03-08 | 国网上海市电力公司 | Insulation aging test platform based on electric heat and humidity combined factor |
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| CN104076232A (en) * | 2014-07-17 | 2014-10-01 | 国网上海市电力公司 | Transformer oil-paper insulation electricity-heating unite ageing test device |
| CN206876805U (en) * | 2017-06-06 | 2018-01-12 | 广西电网有限责任公司电力科学研究院 | A kind of inside transformer tip partial discharge model |
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2018
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109060645A (en) * | 2018-10-29 | 2018-12-21 | 国网湖南省电力有限公司 | A kind of paper oil insulation material electric-thermal joint burn-in test test method and device |
| CN109917212A (en) * | 2019-04-03 | 2019-06-21 | 西安交通大学 | The experimental system and method for a kind of simulation converter power transformer inside electric heating stress |
| CN109946548A (en) * | 2019-04-19 | 2019-06-28 | 国网四川省电力公司电力科学研究院 | A kind of electric heating joint aging equipment suitable for impacting electric capacity device polypropylene film |
| CN112067438A (en) * | 2020-08-19 | 2020-12-11 | 四川大学 | Organic material aging test platform under coexistence of electric field, heat and compression |
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| CN113075505A (en) * | 2021-03-25 | 2021-07-06 | 哈尔滨理工大学 | Insulating material electric-heat combined aging test device |
| CN114152846A (en) * | 2021-11-26 | 2022-03-08 | 国网上海市电力公司 | Insulation aging test platform based on electric heat and humidity combined factor |
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Application publication date: 20181019 |