CN204479701U - A kind of paper oil insulation local discharge test device - Google Patents
A kind of paper oil insulation local discharge test device Download PDFInfo
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- CN204479701U CN204479701U CN201520029458.XU CN201520029458U CN204479701U CN 204479701 U CN204479701 U CN 204479701U CN 201520029458 U CN201520029458 U CN 201520029458U CN 204479701 U CN204479701 U CN 204479701U
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- organic glass
- vertical slot
- upper cover
- discharge test
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Abstract
A kind of paper oil insulation local discharge test device, it is characterized in that comprising: an organic glass lubricating cup 1, end face is organic glass upper cover 3, has size equal vertical slot at least 2 right in the inner side of two long sidewalls correspondence; One organic glass electrode base 2, it is the long rectangular flat having a threaded hole in plate, and shape size and a pair vertical slot described in thickness correspondence also insert wherein; One metal electrode 6 is a long rectangular slab, and shape size and a pair vertical slot 5 described in thickness correspondence also insert another in vertical slot 5; Rectangular dielectric paper 7, shape size is identical with described brass material metal electrode 6, and it is close to the one side of described brass material metal electrode 6 in the face of organic glass electrode base 2; One vacuumizes ball valve 4 and high-pressure side electrode 8 and earth terminal electrode 9 each.
Description
Technical field
The utility model relates to a kind of discharge test device, is specifically related to a kind of paper oil insulation local discharge test device.
Background technology
Paper oil insulation has a wide range of applications in electric system.But because the insulation defect of oilpaper inside causes shelf depreciation, the accident causing insulating material performance degradation also finally to puncture happens occasionally.Therefore, the much research about paper oil insulation shelf depreciation is had at present.Due to the irrecoverability that paper oil insulation punctures, general experiment is all being carried out containing on the little defect model device of lubricating cup.Lubricating cup in the existing device distance often also existed between high-pressure side pin electrode and grounded metal ground electrode is difficult to control, individual insulating paper is difficult to ensure problems such as flattening.
In addition, the snap-in force between insulating paper and metal polar plate is for vertically to apply, and when causing vacuumizing, bubble cannot depart from insulating paper and between paper and metal polar plate, form air gap, affects experimental result.
Summary of the invention
Problem to be solved in the utility model, just be to provide a kind of paper oil insulation local discharge test device, it can adjust the distance between high-pressure side pin electrode and grounded metal ground electrode easily, ensure under various discharge test condition simultaneously, insulating paper all can flatten the position being fixed on needs, can not be floating, also can not form air gap between insulating paper and metal electrode; Different distance between convenient research high-pressure side pin electrode and grounded metal ground electrode is on metallic projections, air gap, impact along the Characteristics of Partial Discharge of insulation defect in the multiple oil such as face.
Solve the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of paper oil insulation local discharge test device, is characterized in that comprising:
One organic glass lubricating cup 1, in rectangular parallelepiped box-shaped, end face is organic glass upper cover 3, in the inner side of two long sidewalls correspondence, to have the equal vertical slot of size 5 at least 2 right, and described organic glass upper cover 3 center has external threaded hole, the threaded hole both sides vacuumizing ball valve 4 and has the patchhole inserting high-pressure side electrode 8 and earth terminal electrode 9;
One organic glass electrode base 2, it is the long rectangular flat having a threaded hole in plate, in a pair vertical slot 5 described in shape size and a pair vertical slot 5 described in thickness correspondence also insert;
One brass material metal electrode 6 is a long rectangular slab, and shape size and a pair vertical slot 5 described in thickness correspondence also insert another in vertical slot 5;
The rectangular dielectric paper 7 of thickness <0.1mm, shape size is identical with described brass material metal electrode 6, and it is close to the one side of described brass material metal electrode 6 in the face of organic glass electrode base 2;
One vacuumizes ball valve 4, is connected to the threaded hole of described organic glass upper cover 3 center; With
High-pressure side electrode 8 and earth terminal electrode 9 each, be L shape threaded screw rod, the high-pressure side electrode-inserting holes that its vertical section inserts described organic glass upper cover 3 respectively inserts described organic glass electrode base 2 respectively with earth terminal electrode-inserting holes, lower crosspiece and contacts with brass material metal electrode 6.
Described glass top cover 3 is Flange joint with described rectangular parallelepiped box-shaped lubricating cup 1.
Be equidistant between described vertical slot 5.
The ball valve 4 that vacuumizes of described organic glass upper cover is brass material 1/4 ball valve.
Described electrode base 2, the hole of organic glass upper cover 3 are M8 threaded hole, and described high-pressure side electrode and earth terminal electrode are M8 threaded screw rod.
Beneficial effect:
1. lubricating cup and upper cover all use organic glass material to make, and are convenient to observe shelf depreciation situation;
2. equal with the thickness of plate electrodes by the width of vertical slot is set as, the compression of the insulating paper be stuck between vertical slot inwall and plate electrodes outer wall can be ensured.Because snap-in force is for apply in the horizontal direction, when therefore vacuumizing, bubble can upwards be overflowed pasta, avoids the air gap formed between insulating paper and metal electrode;
3. because the spacing of each vertical slot is determined, therefore only plate electrode and electrode base need be inserted different vertical slots, just can study distance between the high-pressure side pin electrode of connecting electrode pedestal and the plate electrodes of ground connection easily to the impact of paper oil insulation shelf depreciation.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the schematic front view that the utility model is inserted with plate;
Fig. 2 is the side view that Fig. 1 removes plate and part 4;
Fig. 3 is the vertical view that Fig. 1 removes part 4, top cover and plate;
Fig. 4 is plate front view of the present utility model;
Fig. 5 is the vertical view of top cover;
Fig. 6 is side view of the present utility model;
Fig. 7 is shelf depreciation PRPD spectrogram of the present utility model;
Fig. 8 is partial discharge pulse of the present utility model time-domain diagram;
Fig. 9 is partial discharge pulse of the present utility model frequency domain figure.
Reference numeral: 1-lubricating cup, 2-electrode base, 3-upper cover, 4-vacuumizes ball valve, 5-vertical slot, 6-brass material metal electrode, 7-insulating paper, 8-high-pressure side electrode, 9-earth terminal electrode;
Embodiment
A kind of paper oil insulation local discharge test device as shown in Fig. 1 ~ 6, is characterized in that comprising:
One organic glass lubricating cup 1, in rectangular parallelepiped box-shaped, end face is organic glass upper cover 3, in the inner side of two long sidewalls correspondence, to have the equal vertical slot of size 5 at least 2 right, and described organic glass upper cover 3 center has external threaded hole, the threaded hole both sides vacuumizing ball valve 4 and has the patchhole inserting high-pressure side electrode 8 and earth terminal electrode 9;
One organic glass electrode base 2, it is the long rectangular flat having a threaded hole in plate, in a pair vertical slot 5 described in shape size and a pair vertical slot 5 described in thickness correspondence also insert;
One brass material metal electrode 6 is a long rectangular slab, and shape size and a pair vertical slot 5 described in thickness correspondence also insert another in vertical slot 5;
The rectangular dielectric paper 7 of thickness <0.1mm, shape size is identical with described brass material metal electrode 6, and it is close to the one side of described brass material metal electrode 6 in the face of organic glass electrode base 2;
One vacuumizes ball valve 4, is connected to the threaded hole of described organic glass upper cover 3 center; With
High-pressure side electrode 8 and earth terminal electrode 9 each, be L shape threaded screw rod, the high-pressure side electrode-inserting holes that its vertical section inserts described organic glass upper cover 3 respectively inserts described organic glass electrode base 2 respectively with earth terminal electrode-inserting holes, lower crosspiece and contacts with brass material metal electrode 6.
Preferably, described glass top cover 3 is Flange joint with described rectangular parallelepiped box-shaped lubricating cup 1.
Preferably, be equidistant between described vertical slot 5.
Preferably, the ball valve 4 that vacuumizes of described organic glass upper cover is brass material 1/4 ball valve.
Preferably, described electrode base 2, the hole of organic glass upper cover 3 are M8 threaded hole, and described high-pressure side electrode and earth terminal electrode are M8 threaded screw rod.
When using a kind of defect model for paper oil insulation partial discharge test of the present utility model, first band high-pressure side electrode 8 being assemblied in the threaded hole of electrode base 2, and electrode base 2 being inserted in a pair vertical slot 5 on lubricating cup wall.Insulating paper 7 one side with brass material metal electrode 6 fit, and it is inserted jointly there is with electrode base 2 certain distance another in vertical slot 5, make organic glass electrode base 2 faced by described insulating paper 7.One end of earth terminal electrode is not contacted with the one side of insulating paper 7 with brass material metal electrode 6.Insulating oil is injected lubricating cup.After upper cover 3 is built, open and it vacuumizes ball valve 4, after vacuumizing standing 24h, high-pressure side electrode 8 is connected high-voltage power supply and ground wire respectively with earth terminal electrode 9, starts to carry out partial discharge test.
Test findings according to Fig. 6-8 shows, the PRPD spectrogram of the shelf depreciation of carrying out in the device of a kind of paper oil insulation partial discharge test of the present utility model meets shelf depreciation in oil and mainly occurs in the feature of voltage rising edge.Meanwhile, shown by the frequency-domain analysis result after carrying out Fast Fourier Transform (FFT) to local discharge pulse signal, its discharge energy mainly concentrates between 10MHz-30MHz, also has certain distribution at 40MHz place simultaneously.Time domain beamformer shows that partial discharge pulse's form is mainly and be superimposed with many high frequency spikes in an Exponential Decay Wave, and this is also identical with the canonical form of shelf depreciation in oil.To sum up, result can prove that this novel lubricating cup meets current testing requirements completely by experiment.
Claims (5)
1. a paper oil insulation local discharge test device, is characterized in that comprising:
One organic glass lubricating cup (1), in rectangular parallelepiped box-shaped, end face is organic glass upper cover (3), in the inner side of two long sidewalls correspondence, to have the equal vertical slot of size (5) at least 2 right, and described organic glass upper cover (3) center has external threaded hole, the threaded hole both sides vacuumizing ball valve (4) and has the patchhole inserting high-pressure side electrode (8) and earth terminal electrode (9);
One organic glass electrode base (2), it is the long rectangular flat having a threaded hole in plate, shape size and a pair vertical slot (5) described in thickness correspondence in a pair vertical slot (5) described in inserting;
One brass material metal electrode (6) is a long rectangular slab, and shape size and a pair vertical slot (5) described in thickness correspondence also insert another in vertical slot (5);
The rectangular dielectric paper (7) of thickness <0.1mm, shape size is identical with described brass material metal electrode (6), and it is close to the one side of described brass material metal electrode (6) in the face of organic glass electrode base (2);
One vacuumizes ball valve (4), is connected to the threaded hole that described organic glass upper cover (3) hits exactly; With
High-pressure side electrode (8) and earth terminal electrode (9) each, be L shape threaded screw rod, the high-pressure side electrode-inserting holes that its vertical section inserts described organic glass upper cover (3) respectively inserts described organic glass electrode base (2) respectively with earth terminal electrode-inserting holes, lower crosspiece and contacts with brass material metal electrode (6).
2. a kind of paper oil insulation local discharge test device according to claim 1, wherein said glass top cover (3) and described rectangular parallelepiped box-shaped lubricating cup (1) are Flange joint.
3. a kind of paper oil insulation local discharge test device according to claim 1 is equidistant between wherein said vertical slot (5).
4. a kind of paper oil insulation local discharge test device according to claim 1, wherein said organic glass upper cover vacuumize ball valve (4) for brass material 1/4 ball valve.
5. a kind of paper oil insulation local discharge test device according to claim 1, wherein said electrode base (2), the hole of organic glass upper cover (3) are M8 threaded hole, and described high-pressure side electrode and earth terminal electrode are M8 threaded screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029458.XU CN204479701U (en) | 2015-01-16 | 2015-01-16 | A kind of paper oil insulation local discharge test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520029458.XU CN204479701U (en) | 2015-01-16 | 2015-01-16 | A kind of paper oil insulation local discharge test device |
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| Publication Number | Publication Date |
|---|---|
| CN204479701U true CN204479701U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520029458.XU Withdrawn - After Issue CN204479701U (en) | 2015-01-16 | 2015-01-16 | A kind of paper oil insulation local discharge test device |
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| Country | Link |
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| CN (1) | CN204479701U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698349A (en) * | 2015-01-16 | 2015-06-10 | 广东电网有限责任公司电力科学研究院 | Paper oil insulation partial discharge test device |
| CN107703429A (en) * | 2017-11-15 | 2018-02-16 | 国网山东省电力公司电力科学研究院 | A kind of planar electrode structure suitable for vacuum edge flashing |
| CN109375075A (en) * | 2018-11-22 | 2019-02-22 | 西南交通大学 | A kind of High-Voltage Experimentation bracket of for transformer paper oil insulation test |
| CN113514741A (en) * | 2021-07-21 | 2021-10-19 | 北京石油化工学院 | Experimental device for liquid electrode partial discharge simulation under direct current excitation |
-
2015
- 2015-01-16 CN CN201520029458.XU patent/CN204479701U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698349A (en) * | 2015-01-16 | 2015-06-10 | 广东电网有限责任公司电力科学研究院 | Paper oil insulation partial discharge test device |
| CN104698349B (en) * | 2015-01-16 | 2017-04-12 | 广东电网有限责任公司电力科学研究院 | Paper oil insulation partial discharge test device |
| CN107703429A (en) * | 2017-11-15 | 2018-02-16 | 国网山东省电力公司电力科学研究院 | A kind of planar electrode structure suitable for vacuum edge flashing |
| CN107703429B (en) * | 2017-11-15 | 2020-02-11 | 国网山东省电力公司电力科学研究院 | Planar electrode structure suitable for vacuum surface flashover |
| CN109375075A (en) * | 2018-11-22 | 2019-02-22 | 西南交通大学 | A kind of High-Voltage Experimentation bracket of for transformer paper oil insulation test |
| CN113514741A (en) * | 2021-07-21 | 2021-10-19 | 北京石油化工学院 | Experimental device for liquid electrode partial discharge simulation under direct current excitation |
| CN113514741B (en) * | 2021-07-21 | 2023-09-15 | 北京石油化工学院 | Experimental device for liquid electrode partial discharge simulation under direct current excitation |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150715 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |