CN206114837U - Experiment physical model device of simulation oil -immersed transformer insulating properties test - Google Patents
Experiment physical model device of simulation oil -immersed transformer insulating properties test Download PDFInfo
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- CN206114837U CN206114837U CN201621154410.2U CN201621154410U CN206114837U CN 206114837 U CN206114837 U CN 206114837U CN 201621154410 U CN201621154410 U CN 201621154410U CN 206114837 U CN206114837 U CN 206114837U
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- insulating
- oil
- insulation
- electrode
- performance test
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Abstract
The utility model provides an experiment physical model device of simulation oil -immersed transformer insulating properties test, includes roof, lower plate, insulating bucket, insulated paper, goes up electrode, bottom electrode, insulation oil and insulating screw rod and insulating nut, goes up the circular via hole that a plurality of alignment setting was respectively seted up to roof and lower plate, insulating barrel head portion closely adheres together with the lower plate, insulated paper is formed by the overlapping of the circular cellulose insulated paper of plural layer, last electrode and bottom electrode are located insulated paper upper and lower position placed in the middle respectively, and the polar plate of insulated paper, last electrode and bottom electrode all soaks completely in the insulating oil. The utility model has the advantages of being simple in structure and convenient in operation, the accessible is changed different quilts and is surveyed sample and test condition, and factors such as research temperature, moisture content, transformer oil paper aging degree are to transformer insulating properties's influence.
Description
Technical field
The utility model is related to high voltage and insulation technology field, refers in particular to a kind of transformer insulated property of simulation oil immersed type
The experimental physics model equipment that can be tested.
Background technology
Oil-immersed power transformer is due to higher dielectric strength, longer service life, being widely used in high pressure, surpassing
In ultra-high-tension power transmission line.The compound inslation of insulating oil and insulating paper composition constitutes the insulation system of oil-immersed power transformer,
It is the primary condition of transformer normal work and operation, and the service life of transformer is determined by the insulation degree of insulating materials
It is fixed, in practice it has proved that, the damage of more than 85% transformer and failure are all because the infringement of insulation system and make, and affect to become
The principal element of depressor insulation system is moisture, degree of aging of transformer station high-voltage side bus temperature, transformer oil and paper etc..Reply
Voltage method (Recovery Voltage Measurement, RVM) is use both at home and abroad in recent years a kind of lossless to measurand
Harmful easy, effective insulation detecting method, the core concept of the evaluation method is that the insulation system to oil-filled transformer is applied
Plus DC voltage, the return voltage wave spectrogram of transformer insulating system time domain response is obtained, with this state of insulation to transformer
Make assessment.
Based on setting up experimental physics model based on oil-filled transformer insulation system, simulation is complicated and changeable outer in practice
Boundary's condition, by changing laboratory different temperatures environment, different in moisture content and accelerating thermal aging test analogue transformer oilpaper
Aging, the research return voltage parameter Changing Pattern at different conditions, will pass through return voltage method to transformer of insulation
Status information is diagnosed, and so as to make assessment to the state of insulation of tested transformer, transformer oil paper insulation shape is grasped in time
State property energy, so as to it is scientific, standardization, rationalize arrange service work, this is not only avoided that potential faults, and can be effective
Improve electrical network power supply reliability.
In view of this, the present inventor is for existing oil-filled transformer insulating properties test philosophy and experimental model making side
The further investigation of method, has this case to produce then.
Utility model content
The utility model provides a kind of experimental physics model equipment of the transformer insulated performance test of simulation oil immersed type, its master
Syllabus is that, by the different sample of replacing and test condition, research temperature, moisture, transformer oil/paper are aging
Impact of the factors such as degree to transformer insulated performance.
To solve above-mentioned technical problem, the utility model is adopted the following technical scheme that：
A kind of experimental physics model equipment of the simulation transformer insulated performance test of oil immersed type, including upper plate, lower shoe,
Insulation burrel, the insulating paper in the insulation burrel, Top electrode, bottom electrode, insulating oil, and for by upper plate, lower shoe and
Insulation blanket stud and insulating nut that insulation burrel is fixed, the upper plate and lower shoe respectively offer what a plurality of alignment were arranged
Circular vias, the circular vias are used to connect insulation blanket stud；The insulation bottom of the barrel holds tightly together with lower shoe, described
Insulating paper is overlapped by plural layer circular fiber element insulating paper and formed；It is placed in the middle that the Top electrode and bottom electrode are located at respectively insulating paper
Upper-lower position, and Top electrode and bottom electrode adopt T-shaped conductive structure, and the T-shaped conductive structure is long by circular pole plate and difference
Degree metallic rod composition, the pole plate of the insulating paper, Top electrode and bottom electrode is fully immersed in the insulating oil.
Further, the upper plate and lower shoe are the circular insulating board of acrylic material.
Further, the upper plate top has at least one fuel feed hole, and on the fuel feed hole oil inlet valve is provided with, and leads to
Crossing the oil inlet valve can inject the insulating oil into insulation burrel；The lower shoe bottom has at least one oil outlet, and this goes out
Fuel-displaced valve is installed on oilhole, the insulating oil in insulation burrel can be discharged by the fuel-displaced valve.
Further, the upper plate home position has screw thread via, and the screw thread via is used to connect the gold of Top electrode
Category bar, the metallic rod of the Top electrode arranges that its internal thread for passing through screw thread via is tightened in screw shaped, it is ensured that on
Electrode aligns, is adjacent to insulating paper.
Further, the lower shoe home position has assembling via, and the assembling via is used to connect the gold of bottom electrode
Category bar, the metallic rod of the bottom electrode is unremovably sealingly fastened on the assembling via.
Further, the Top electrode and bottom electrode are T-shaped conductive structure made by copper material, the T-shaped conductive knot
Structure is made up of circular pole plate and different length copper bar.
Further, the insulating paper is overlapped by the circular fiber element insulating paper of 4 layers of diameter 100mm, thickness 3mm and formed.
Further, a diameter of 10mm of the screw thread via.
Further, a diameter of 10mm of the assembling via.
Further, the insulation burrel adopts transparent acrylic material, a diameter of 170mm of the insulation burrel, height
Be 3mm for 176mm, bucket wall thickness, and the insulation burrel top and upper plate do not bind, it is separable, the insulation bottom of the barrel and
Lower shoe holds tightly together, and prevents insulating oil leakage.
Compared to the prior art, the beneficial effect of the utility model generation is:
It is the utility model simple structure, easy to operate, can pass through to change different sample and test condition, research temperature
The impact of the factor to transformer insulated performance such as degree, moisture, transformer oil/paper degree of aging.
In the utility model, in experiment, the metallic rod of Top electrode is wired to into the positive pole of test equipment, under
The metallic rod of electrode is connected to the negative pole of test equipment by wire, and the utility model is applied by high-voltage DC power supply
The high direct voltage of 2000V, at the utility model two ends polarization phenomena will be presented, after short circuit two-stage, on the utility model two ends
Electric charge can discharge immediately, while inside can occur process of depolarization.After disconnecting the shorting stub of two interpolars, process of depolarization still after
Continuous, free charge can form an electrical potential difference between the two poles of the earth, according to polarization characteristic at a dc voltage, using test equipment
The return voltage curve and parameter of polarization characteristic can be obtained, these parameters are closely related with transformer oil paper insulation status information,
Analyze the rule change between them, you can discriminatory analysis is carried out to transformer oil paper insulation situation.
Description of the drawings
Fig. 1 is related to a kind of experimental physics model equipment of the transformer insulated performance test of simulation oil immersed type for the utility model
Side structure schematic diagram.
Fig. 2 is related to a kind of experimental physics model equipment of the transformer insulated performance test of simulation oil immersed type for the utility model
Overlooking the structure diagram.
Fig. 3 is related to a kind of experimental physics model equipment of the transformer insulated performance test of simulation oil immersed type for the utility model
Present invention looks up structural representation.
Fig. 4 is related to a kind of experimental physics model equipment of the transformer insulated performance test of simulation oil immersed type for the utility model
Experiment electrical connection schematic diagram.
Specific embodiment
Specific embodiment of the present utility model is illustrated with reference to the accompanying drawings.
With reference to Fig. 1, Fig. 2 and Fig. 3.A kind of experimental physics model of simulation air gap type shelf depreciation that the utility model is related to
Device 1, its include upper plate 13, lower shoe 14, insulation burrel 15, insulating paper 18, Top electrode 17, bottom electrode 19, insulating oil 16 with
And for fixing the insulation blanket stud 11 and insulating nut 12 of experimental physics model equipment 1.Wherein, the upper plate 13 and lower shoe 14
Four ends be respectively provided with the circular vias of 4, for connecting interior hexagonal insulation blanket stud 11, play fixed experimental physics model equipment 1
Effect；The bottom of insulation burrel 15 holds tightly together with lower shoe 14；The insulating paper 18 is by 4 layers of diameter 100mm, thickness
The circular fiber element insulating paper of 3mm is overlapped and formed；The Top electrode 17 and bottom electrode 19 adopt T-shaped copper material, have by justifying
Shape pole plate and different length copper bar are constituted, and upper and lower electrode is located at respectively the upper-lower position placed in the middle of insulating paper 18, straight for applying
Stream voltage and extraction test signal；Insulating oil 16 adopt No. 25 transformer insulation oils, and above-mentioned insulating paper 18, Top electrode 17 and under
The pole plate of electrode 19 is fully immersed in insulating oil 16.
With reference to Fig. 1, Fig. 2 and Fig. 3.Wherein, the upper plate 13 and lower shoe 14 adopt a diameter of 200mm, thickness for
12mm transparent acrylic material circular insulating board.
With reference to Fig. 1, Fig. 2 and Fig. 3.There is at the top of upper plate 13 1 fuel feed hole to be connected to oil inlet valve 131, by oil-feed
Valve 131 can be to injection transformer insulating oil 16 in model equipment 1；The home position of upper plate 13 has the screw thread of 1 Φ 10mm
Via, for connecting the copper screw rod of Top electrode 17, used as the positive pole for applying DC voltage and extraction test signal, and screw rod can
It is tightened by the screw thread of via, it is ensured that upper and lower electrode（17、19）Align, be adjacent to insulating paper 18.
With reference to Fig. 1, Fig. 2 and Fig. 3.There is the bottom of lower shoe 14 1 oil outlet to be connected to fuel-displaced valve 141, by fuel-displaced
Valve can discharge the transformer insulation oil 16 in model equipment；The home position of lower shoe 14 has the assembling via of 1 Φ 10mm,
For connecting the copper bar of bottom electrode 19, as apply DC voltage and extract test signal negative pole, and copper bar with assembling via
Sealing is fixed, it is impossible to is dismantled, is prevented the seepage of transformer insulation oil 16.
With reference to Fig. 1, Fig. 2 and Fig. 3.Upper plate 13 and the end of lower shoe 14 4 have 4 circular vias, for connecting interior hexagonal
Insulation blanket stud 11, plays a part of fixed model device.
With reference to Fig. 1, Fig. 2 and Fig. 3.Wherein, the insulation burrel 15 adopt transparent acrylic material, insulation burrel 15 it is a diameter of
170mm, be highly 176mm, bucket wall thickness be 3mm, and the top of insulation burrel 15 and upper plate 13 do not bind, separable, insulation burrel
15 bottoms hold tightly together with lower shoe 14, prevent the seepage of transformer insulation oil 16.
With reference to Fig. 1, Fig. 2 and Fig. 3.In preferred embodiment of the present utility model, Top electrode 17 is by a diameter of 80mm, thickness
Circular pole plate and a diameter of 10mm, length for 5mm is constituted for the copper screw rod of 150mm, and its copper screw rod can pass through upper plate
Screw thread via be tightened, it is ensured that Top electrode 17, bottom electrode 19 align, are adjacent to insulating paper 18；Its copper screw rod
Through upper plate 13, can be connected with test signal line, as the positive pole for applying DC voltage and extraction test signal.Bottom electrode 19
It is made up of for the solid copper bar of 60mm the circular pole plate and a diameter of 10mm, length of a diameter of 80mm, thickness for 5mm, its is solid
Copper bar is fixed with the assembling via seal of lower shoe 14, it is impossible to dismantled, and prevents the seepage of transformer insulation oil 16；Its solid copper bar is worn
Lower shoe 14 is crossed, can be connected with test signal line, as the negative pole for applying DC voltage and extraction test signal.
With reference to Fig. 4.The copper screw rod of Top electrode 17 in an experiment, is wired to transformer oil by the utility model
The positive pole of paper insulation condition detecting device 2, the solid copper bar of bottom electrode 19 is connected to transformer oil paper insulation state by wire
The negative pole of testing equipment 2, by arranging high-voltage DC power supply 22 high direct voltage of 2000V is exported, and arranges controlling switch（S1）
21 are closed into K1 shelves, so as in a length of t1 of the two ends application time of experimental physics model equipment 1（The t1 times are generally 1 second ~ 1000 seconds
Between）2000V high direct voltages so that the two ends of experimental physics model equipment 1 present polarization phenomena；After pressurization, control is set and is opened
Close（S1）21 disconnection K1 are closed into the two ends of K2 short circuits model 1（The short circuit time is traditionally arranged to be 0.5t1）, experimental physics model equipment
Electric charge on 1 two ends can discharge immediately, while inside can occur process of depolarization；Controlling switch（S1）21 shorting stubs for disconnecting K2
And be closed into after K3, because the short circuit time is shorter, process of depolarization is still continuing, and free charge can be formed between model two ends
One electrical potential difference, according to polarization characteristic at a dc voltage, gathers tested using the signal gathering unit 23 of testing equipment 2
The return voltage curve of experimental physics model equipment 1 and parameter, by control and analytic unit 24 to return voltage curve and ginseng
Several Changing Patterns are analyzed, you can understand transformer oil paper insulation situation.
It is using the experimental physics model equipment 1 and old by the insulating paper of replacing different in moisture content, difference in experiment
Insulating paper/the insulating oil of change time, the insulating oil of different electrical conductivity and it is placed at a temperature of different experiments and carries out retest
Mode, can obtain different samples and return voltage curve and parameter under different condition, the different factors of analysis are to transformation
The influence degree of device paper oil insulation state, so as to study the factors such as temperature, moisture and different degree of agings to return voltage
The impact change of curve and parameter, this is significant for the analysis and research of transformer oil paper insulation state.
Specific embodiment of the present utility model is above are only, but design concept of the present utility model is not limited thereto,
All changes for carrying out unsubstantiality to the utility model using this design, all should belong to the row for invading the utility model protection domain
For.
Claims (10)
1. a kind of experimental physics model equipment of the simulation transformer insulated performance test of oil immersed type, it is characterised in that：Including upper top
Plate, lower shoe, insulation burrel, the insulating paper in the insulation burrel, Top electrode, bottom electrode, insulating oil, and for by upper top
Insulation blanket stud and insulating nut that plate, lower shoe and insulation burrel are fixed, the upper plate and lower shoe respectively offer plural number
The circular vias that individual alignment is arranged, the circular vias are used to connect insulation blanket stud；The insulation bottom of the barrel is closely glued with lower shoe
It is combined, the insulating paper is overlapped by plural layer circular fiber element insulating paper and formed；The Top electrode and bottom electrode difference position
In the upper-lower position that insulating paper is placed in the middle, and Top electrode and bottom electrode adopt T-shaped conductive structure, and the T-shaped conductive structure is by justifying
Shape pole plate and different length metallic rod are constituted, the pole plate of the insulating paper, Top electrode and bottom electrode be fully immersed in it is described absolutely
In edge oil.
2. the as claimed in claim 1 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The upper plate and lower shoe are the circular insulating board of acrylic material.
3. the as claimed in claim 1 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The upper plate top has at least one fuel feed hole, oil inlet valve is provided with the fuel feed hole, by the inlet valve
The injection insulating oil in Men Kexiang insulation burrels；The lower shoe bottom has at least one oil outlet, installs on the oil outlet
There is fuel-displaced valve, the insulating oil in insulation burrel can be discharged by the fuel-displaced valve.
4. the as claimed in claim 2 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The upper plate home position has screw thread via, and the screw thread via is used to connecting the metallic rod of Top electrode, it is described on
The metallic rod of electrode arranges that its internal thread for passing through screw thread via is tightened in screw shaped, it is ensured that Top electrode and insulation
The alignment of paper, it is adjacent to.
5. the as claimed in claim 2 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The lower shoe home position has an assembling via, and the assembling via is used to connecting the metallic rod of bottom electrode, it is described under
The metallic rod of electrode is unremovably sealingly fastened on the assembling via.
6. the as claimed in claim 1 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The Top electrode and bottom electrode are T-shaped conductive structure made by copper material, and the T-shaped conductive structure is by circular pole
Plate and different length copper bar are constituted.
7. the as claimed in claim 1 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The insulating paper is overlapped by the circular fiber element insulating paper of 4 layers of diameter 100mm, thickness 3mm and formed.
8. the as claimed in claim 4 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：A diameter of 10mm of the screw thread via.
9. the as claimed in claim 5 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：A diameter of 10mm of the assembling via.
10. the as claimed in claim 1 experimental physics model equipment of the transformer insulated performance test of a kind of simulation oil immersed type, it is special
Levy and be：The insulation burrel adopt transparent acrylic material, a diameter of 170mm of the insulation burrel, highly be 176mm, bucket
Wall thickness is 3mm, and the insulation burrel top and upper plate do not bind, it is separable, the insulation bottom of the barrel is tight with lower shoe
It is bonded together, prevents insulating oil leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621154410.2U CN206114837U (en) | 2016-10-31 | 2016-10-31 | Experiment physical model device of simulation oil -immersed transformer insulating properties test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621154410.2U CN206114837U (en) | 2016-10-31 | 2016-10-31 | Experiment physical model device of simulation oil -immersed transformer insulating properties test |
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| Publication Number | Publication Date |
|---|---|
| CN206114837U true CN206114837U (en) | 2017-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621154410.2U Expired - Fee Related CN206114837U (en) | 2016-10-31 | 2016-10-31 | Experiment physical model device of simulation oil -immersed transformer insulating properties test |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107271871A (en) * | 2017-07-21 | 2017-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Submarine cable DC break down voltage test charge accumulation dissipation system and method for testing |
| CN107576893A (en) * | 2017-08-17 | 2018-01-12 | 重庆大学 | Multi-example solid insulation electric life test system under a kind of low capacity dc source |
| CN109085467A (en) * | 2018-07-26 | 2018-12-25 | 常州市英中电气有限公司 | Test platform and system for the research and development of insulating adhesive electric property |
| CN109932307A (en) * | 2019-02-19 | 2019-06-25 | 华北电力大学 | Transformer copper oilpaper system electric heating combines senile experiment device and sampling method |
| CN110208669A (en) * | 2019-06-26 | 2019-09-06 | 国网浙江省电力有限公司电力科学研究院 | The device and method of insulation degradation between simulation oil immersed type capacitor panel of current transformer |
| CN110658427A (en) * | 2019-10-21 | 2020-01-07 | 南方电网科学研究院有限责任公司 | System and method for detecting liquid discharge characteristic |
| CN110780167A (en) * | 2019-11-12 | 2020-02-11 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN110849413A (en) * | 2019-05-30 | 2020-02-28 | 天津市津源供电设备有限公司 | Oil-immersed transformer monitoring system |
| CN111948497A (en) * | 2019-05-14 | 2020-11-17 | 广西电网有限责任公司南宁供电局 | Aging test device and method for transformer insulation paper |
| CN114002571A (en) * | 2021-11-03 | 2022-02-01 | 华北电力大学 | Profiling electrode for testing insulation characteristic of transformer angle ring structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107271871A (en) * | 2017-07-21 | 2017-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Submarine cable DC break down voltage test charge accumulation dissipation system and method for testing |
| CN107271871B (en) * | 2017-07-21 | 2023-05-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Submarine cable direct-current withstand voltage test charge accumulation dissipation system and test method |
| CN107576893A (en) * | 2017-08-17 | 2018-01-12 | 重庆大学 | Multi-example solid insulation electric life test system under a kind of low capacity dc source |
| CN107576893B (en) * | 2017-08-17 | 2019-11-08 | 重庆大学 | Multi-example solid insulation electric life test macro under a kind of low capacity DC power supply |
| CN109085467A (en) * | 2018-07-26 | 2018-12-25 | 常州市英中电气有限公司 | Test platform and system for the research and development of insulating adhesive electric property |
| CN109932307A (en) * | 2019-02-19 | 2019-06-25 | 华北电力大学 | Transformer copper oilpaper system electric heating combines senile experiment device and sampling method |
| CN111948497A (en) * | 2019-05-14 | 2020-11-17 | 广西电网有限责任公司南宁供电局 | Aging test device and method for transformer insulation paper |
| CN110849413A (en) * | 2019-05-30 | 2020-02-28 | 天津市津源供电设备有限公司 | Oil-immersed transformer monitoring system |
| CN110208669A (en) * | 2019-06-26 | 2019-09-06 | 国网浙江省电力有限公司电力科学研究院 | The device and method of insulation degradation between simulation oil immersed type capacitor panel of current transformer |
| CN110658427A (en) * | 2019-10-21 | 2020-01-07 | 南方电网科学研究院有限责任公司 | System and method for detecting liquid discharge characteristic |
| CN110658427B (en) * | 2019-10-21 | 2022-02-22 | 南方电网科学研究院有限责任公司 | System and method for detecting liquid discharge characteristic |
| CN110780167A (en) * | 2019-11-12 | 2020-02-11 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN110780167B (en) * | 2019-11-12 | 2021-08-17 | 西南交通大学 | Insulating property detection device for barrel type composite insulating material |
| CN114002571A (en) * | 2021-11-03 | 2022-02-01 | 华北电力大学 | Profiling electrode for testing insulation characteristic of transformer angle ring structure |
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| CP01 | Change in the name or title of a patent holder | ||
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Address after: 010080 Jinchuan Development Zone, the Inner Mongolia Autonomous Region, Hohhot Co-patentee after: Red phase Limited by Share Ltd Patentee after: Inner Mongolia electric power (Group) Co., Ltd. Inner Mongolia Ultra High Voltage Power Supply Bureau Address before: 010080 Jinchuan Development Zone, the Inner Mongolia Autonomous Region, Hohhot Co-patentee before: Xiamen Red Phase Instruments Inc. Patentee before: Inner Mongolia electric power (Group) Co., Ltd. Inner Mongolia Ultra High Voltage Power Supply Bureau |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20191031 |