CN109060645A - A kind of paper oil insulation material electric-thermal joint burn-in test test method and device - Google Patents
A kind of paper oil insulation material electric-thermal joint burn-in test test method and device Download PDFInfo
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- CN109060645A CN109060645A CN201811265114.3A CN201811265114A CN109060645A CN 109060645 A CN109060645 A CN 109060645A CN 201811265114 A CN201811265114 A CN 201811265114A CN 109060645 A CN109060645 A CN 109060645A
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- insulation material
- oil insulation
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- paper oil
- burn
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
Abstract
The invention discloses a kind of paper oil insulation material electric-thermal joint burn-in test test method and devices, including step 1, by the dry water removal of the insulating board for being used to test；Insulating board under vacuum environment is carried out in transformer oil immersion oil and paper oil insulation material is made by step 2；Paper oil insulation material is carried out heat ageing by step 3 under nitrogen atmosphere；Paper oil insulation material after heat ageing is put into local discharge test device and carries out voltage ageing by step 4.It is more close in ageing process and real transformer that the present invention combines the thermo-electrically of paper oil insulation material, especially voltage ageing process is generated by the shelf depreciation under tip, with in real transformer mostly because manufacturing process on defect generate field strength centrostigma situation it is more similar, can more effectively manufacture paper oil insulation material aging sample.
Description
Technical field
The present invention relates to a kind of paper oil insulation material electric-thermal joint burn-in test test method and devices.
Background technique
Paper oil insulation material is used widely in the power equipments such as transformer.When equipment operates normally, paper oil insulation
Material carries always the effect of heat, electrically and mechanically iso-stress, and aging constantly occurs.Insulation characterisitic after these material agings
And mechanical performance can all be declined, after the degree of reduction is excessive, it may appear that the defects of shelf depreciation, mechanical winding deformation, most
Lead to failure eventually, and cause the accidents such as power failure, causes serious economic loss.
Traditional research method is generally concentrated on obtains the pattern of operation long period or in vacuum from real transformer
Middle carry out thermal aging test, electrical aging techniques are also based on the electric discharge aging under air gap.But there is many for this method
Problem, such as the more difficult acquisition of pattern in real transformer, the degradation oil pole in vacuum easily boils, cannot effective analogue transformer
In the case where field strength centrostigma is generated due to the defect in manufacturing process etc..Therefore, it is necessary to develop a kind of new thermoelectricity connection
The method for closing burn-in test paper oil insulation material properties.
Summary of the invention
In order to solve current heat ageing, electric discharge senile experiment do not meet aging conditions in real transformer the technical issues of,
The present invention provides a kind of paper oil insulation material electric-thermal joint burn-in test test method for capableing of the practical aging conditions of accurate simulation
And device.
In order to achieve the above technical purposes, the technical scheme is that, a kind of paper oil insulation material electric-thermal joint aging
Testing experiment method, comprising the following steps:
Step 1, by the dry water removal of the insulating board for being used to test；
Insulating board under vacuum environment is carried out in transformer oil immersion oil and paper oil insulation material is made by step 2
Material；
Paper oil insulation material is carried out heat ageing by step 3 under nitrogen atmosphere；
Paper oil insulation material after heat ageing is put into local discharge test device and carries out voltage ageing by step 4, into
It uses at least side for the electric discharge device of pin electrode progress shelf depreciation when row voltage ageing, terminates entirely to test after the completion of voltage ageing
Test.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, and the step one arrives step 3,
It is to be placed in insulating board in same vacuum drying oven to complete.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, in the step one, will insulate
Cardboard dries 48h in 120 DEG C of vacuums.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, in the step two, insulating paper
Plate is previously placed in lubricating cup, after completing step 1, is kept vacuum, transformer oil is injected into lubricating cup to soak
Oil.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, in the step two, further includes
When carrying out immersion oil, by temperature rise to 80 DEG C heating for 24 hours the step of.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, in the step three, to vacuum
The nitrogen of one atmospheric pressure of injection in baking oven, and 130 DEG C of progress thermal aging tests are warming up to, pass through paper oil insulation material and reality
The degree of polymerization of pattern compares in operating transformer, obtains the conversion relation of thermal aging test duration Yu the actual motion time limit.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, described in the step four
Transformer oil is marked in local discharge test device.
A kind of paper oil insulation material electric-thermal combines burn-in test test method, described in the step four
Local discharge test device is set there are two electrode, and paper oil insulation material is set between two electrodes, and two one, electrode is
With the pin electrode of paper oil insulation material point contact, another is the plate electrode with paper oil insulation material face contact.
A kind of paper oil insulation material electric-thermal joint burn-in test experimental rig, for the voltage ageing of paper oil insulation material, packet
Seal box and two electrodes are included, two electrodes are relatively arranged in seal box and are equipped between two electrodes for placing
The gap of paper oil insulation material, one is the pin electrode with paper oil insulation material point contact in two electrodes, another is and oil
The plate electrode of isolit face contact.
A kind of paper oil insulation material electric-thermal combines burn-in test experimental rig, is filled in the seal box
Transformer oil.
The technical effects of the invention are that including but is not limited to be protected in nitrogen using combined heat and power burn-in test of the invention
Carry out the electrical ageing test under shelf depreciation effect under shield atmosphere after progress heat ageing in severe non-uniform electric field to insulating board
Research.This method effectively can carry out burn-in test to insulating board, while obtain the Characteristics of Partial Discharge of insulating board, effectively
Analyze the electric property of insulating board material before and after aging in ground.The present invention makes the thermo-electrically of paper oil insulation material combine ageing process
With in real transformer more closely, especially voltage ageing process is generated by shelf depreciation under tip, with real transformer
In mostly because manufacturing process on defect generate field strength centrostigma situation it is more similar, it is old can more effectively to manufacture paper oil insulation material
Change sample.
Detailed description of the invention
Fig. 1 is flow diagram of the invention；
Fig. 2 is the structural schematic diagram that paper oil insulation material electric-thermal of the present invention combines burn-in test experimental rig；
1 it is wherein seal box, 2 be pin electrode, 3 be plate electrode, 4 is paper oil insulation material.
Specific embodiment
In order to make, technological means of the invention, creation characteristic, workflow, application method reach purpose and effect is easy to bright
White understanding with reference to specific embodiments the present invention is further explained.
Referring to Fig. 1, scheme provided by the invention the following steps are included:
Step 1: insulating board removes water.The insulating board that will be cut, the hair for removing edge, which is served, is placed in vacuum drying oven
In lubricating cup in, in drying 48h in 120 DEG C of vacuums, remove the moisture for absorption of making moist in cardboard, reduce moisture to aging
Interference；
Step 2: insulating board vacuum oil immersion and water removal.By the pressure difference between vacuum and atmospheric pressure, by transformer oil
It is pumped into vacuum drying oven by hose, and by the lubricating cup where rubber hose injection insulating board.Due to the effect of pressure,
Mist state is presented when transformer oil sprays at this time, insulating board complete wetting can be made, reduces the bubble being wherein likely to occur；Thereafter
80 DEG C are warming up to, heating for 24 hours, removes the moisture in transformer oil, and the oxygen and moisture reduced in air does material aging
It disturbs；
Step 3: heat ageing under paper oil insulation material nitrogen atmosphere.The nitrogen of an atmospheric pressure is injected into vacuum drying oven,
And it is warming up to 130 DEG C of progress thermal aging tests.It is carried out pair by the degree of polymerization of pattern in its degree of polymerization and actual motion transformer
Than, it can be deduced that the conversion relation of thermal aging test duration and the actual motion time limit, and take out and correspond to certain operation time limit
Paper oil insulation material sample carries out voltage ageing；
Voltage ageing is carried out step 4: oilpaper sample after aging is put into partial discharge test lubricating cup, by under tip
Severe non-uniform electric field generates shelf depreciation, is denaturalized cardboard gradually, obtains the board sample of different voltage ageing degree.
Referring to fig. 2, paper oil insulation material electric-thermal joint burn-in test experimental rig of the present invention includes seal box
With two electrodes, two electrodes are relatively arranged in seal box and are equipped between two electrodes for placing paper oil insulation material
Gap, one is the pin electrode with paper oil insulation material point contact in two electrodes, another is connects with paper oil insulation material face
The plate electrode of touching.In actual use, it is contemplated that plate electrode is set as the electrode of lower section with support paper oil insulation material, the electricity of top
Pole uses pin electrode, in order to use.Transformer oil is filled in seal box with analogue transformer internal environment.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of paper oil insulation material electric-thermal combines burn-in test test method, which comprises the following steps:
Step 1, by the dry water removal of the insulating board for being used to test；
Insulating board under vacuum environment is carried out in transformer oil immersion oil and paper oil insulation material is made by step 2；
Paper oil insulation material is carried out heat ageing by step 3 under nitrogen atmosphere；
Paper oil insulation material after heat ageing is put into local discharge test device and carries out voltage ageing by step 4, is carrying out electricity
It uses at least side for the electric discharge device of pin electrode progress shelf depreciation when aging, terminates entirely to test examination after the completion of voltage ageing
It tests.
2. according to a kind of paper oil insulation material electric-thermal joint burn-in test test method according to claim 1, feature
It is, it is to be placed in insulating board in same vacuum drying oven to complete that the step one, which arrives step 3,.
3. a kind of paper oil insulation material electric-thermal according to claim 2 combines burn-in test test method, feature exists
In in the step one, insulating board is dried 48h in 120 DEG C of vacuums.
4. a kind of paper oil insulation material electric-thermal according to claim 2 combines burn-in test test method, feature exists
In in the step two, insulating board is previously placed in lubricating cup, after completing step 1, vacuum is kept, by transformer
Oil is injected into lubricating cup to carry out immersion oil.
5. a kind of paper oil insulation material electric-thermal according to claim 2 combines burn-in test test method, feature exists
In, in the step two, further include when carrying out immersion oil, by temperature rise to 80 DEG C heating for 24 hours the step of.
6. a kind of paper oil insulation material electric-thermal according to claim 2 combines burn-in test test method, feature exists
In, in the step three, the nitrogen of one atmospheric pressure of injection into vacuum drying oven, and it is warming up to 130 DEG C of progress heat ageing examinations
It tests, is compared by paper oil insulation material and the degree of polymerization of pattern in actual motion transformer, obtain thermal aging test duration
With the conversion relation of the actual motion time limit.
7. a kind of paper oil insulation material electric-thermal according to claim 1 combines burn-in test test method, feature exists
In being marked with transformer oil in the local discharge test device in the step four.
8. a kind of paper oil insulation material electric-thermal according to claim 1 combines burn-in test test method, feature exists
In in the step four, the local discharge test device is set there are two electrode, and paper oil insulation material is set to two electricity
Between pole, and two one, electrode is the pin electrode with paper oil insulation material point contact, another is and paper oil insulation material face
The plate electrode of contact.
9. a kind of paper oil insulation material electric-thermal combines burn-in test experimental rig, special for the voltage ageing of paper oil insulation material
Sign is, including seal box and two electrodes, and two electrodes are relatively arranged in seal box and set between two electrodes
There is a gap for placing paper oil insulation material, one is the pin electrode with paper oil insulation material point contact in two electrodes, separately
One is the plate electrode with paper oil insulation material face contact.
10. a kind of paper oil insulation material electric-thermal according to claim 9 combines burn-in test experimental rig, feature exists
In being filled with transformer oil in the seal box.
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| CN201811265114.3A CN109060645A (en) | 2018-10-29 | 2018-10-29 | A kind of paper oil insulation material electric-thermal joint burn-in test test method and device |
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| CN201811265114.3A CN109060645A (en) | 2018-10-29 | 2018-10-29 | A kind of paper oil insulation material electric-thermal joint burn-in test test method and device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680845A (en) * | 2018-06-13 | 2018-10-19 | 福州天宇电气股份有限公司 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
| 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 |
| CN111638433A (en) * | 2020-06-10 | 2020-09-08 | 广西电网有限责任公司电力科学研究院 | Experimental equipment and method for partial discharge decomposition of insulating silicone oil with adjustable environmental humidity |
| CN111965505A (en) * | 2020-08-17 | 2020-11-20 | 重庆大学 | Aging test method for high-overload vegetable insulating oil |
| CN112067370A (en) * | 2020-09-11 | 2020-12-11 | 上海朋环测控技术股份有限公司 | Adsorption tube aging instrument and method |
| CN112179935A (en) * | 2020-09-30 | 2021-01-05 | 海南电网有限责任公司电力科学研究院 | Simulation test method for accelerating thermal aging of cable paper for transformer |
| CN112731074A (en) * | 2020-12-17 | 2021-04-30 | 深圳供电局有限公司 | Oil paper insulation aging test system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10135915A1 (en) * | 2001-07-24 | 2003-03-06 | Wimmershoff Rudolf | Diagnosis method for the dielectric aging of multiple material dielectrics, by execution of in-situ loss factor measurements with frequencies much lower than those of the mains power supply allowing overall aging assessment |
| CN101408579A (en) * | 2008-11-21 | 2009-04-15 | 重庆大学 | Oil paper insulated electrothermic aging test and local discharge integrated detection device of transformer |
| CN103105568A (en) * | 2013-01-16 | 2013-05-15 | 重庆市电力公司电力科学研究院 | Transformer paper oil insulation experiment device integrated with electric heating combination ageing and partial discharge |
| CN108226726A (en) * | 2018-01-03 | 2018-06-29 | 西安交通大学 | A kind of more stress of thermo-electrically-machine of UHV converter transformer paper oil insulation material combine senile experiment platform and experimental method |
| CN108680845A (en) * | 2018-06-13 | 2018-10-19 | 福州天宇电气股份有限公司 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
-
2018
- 2018-10-29 CN CN201811265114.3A patent/CN109060645A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10135915A1 (en) * | 2001-07-24 | 2003-03-06 | Wimmershoff Rudolf | Diagnosis method for the dielectric aging of multiple material dielectrics, by execution of in-situ loss factor measurements with frequencies much lower than those of the mains power supply allowing overall aging assessment |
| CN101408579A (en) * | 2008-11-21 | 2009-04-15 | 重庆大学 | Oil paper insulated electrothermic aging test and local discharge integrated detection device of transformer |
| CN103105568A (en) * | 2013-01-16 | 2013-05-15 | 重庆市电力公司电力科学研究院 | Transformer paper oil insulation experiment device integrated with electric heating combination ageing and partial discharge |
| CN108226726A (en) * | 2018-01-03 | 2018-06-29 | 西安交通大学 | A kind of more stress of thermo-electrically-machine of UHV converter transformer paper oil insulation material combine senile experiment platform and experimental method |
| CN108680845A (en) * | 2018-06-13 | 2018-10-19 | 福州天宇电气股份有限公司 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
Non-Patent Citations (1)
| Title |
|---|
| 梁帅伟;廖瑞金;杨丽君;解兵;: "油纸绝缘老化的超宽频带局部放电信号时频域特性逐步判别分析" * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108680845A (en) * | 2018-06-13 | 2018-10-19 | 福州天宇电气股份有限公司 | Paper oil insulation electric heating combines stress ageing test apparatus and its test method |
| 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 |
| CN111638433A (en) * | 2020-06-10 | 2020-09-08 | 广西电网有限责任公司电力科学研究院 | Experimental equipment and method for partial discharge decomposition of insulating silicone oil with adjustable environmental humidity |
| CN111965505A (en) * | 2020-08-17 | 2020-11-20 | 重庆大学 | Aging test method for high-overload vegetable insulating oil |
| CN112067370A (en) * | 2020-09-11 | 2020-12-11 | 上海朋环测控技术股份有限公司 | Adsorption tube aging instrument and method |
| CN112179935A (en) * | 2020-09-30 | 2021-01-05 | 海南电网有限责任公司电力科学研究院 | Simulation test method for accelerating thermal aging of cable paper for transformer |
| CN112731074A (en) * | 2020-12-17 | 2021-04-30 | 深圳供电局有限公司 | Oil paper insulation aging test system |
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