CN204116543U - Electrode cup for measuring breakdown characteristic of transformer oil-paper composite system - Google Patents
Electrode cup for measuring breakdown characteristic of transformer oil-paper composite system Download PDFInfo
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- CN204116543U CN204116543U CN201420617688.3U CN201420617688U CN204116543U CN 204116543 U CN204116543 U CN 204116543U CN 201420617688 U CN201420617688 U CN 201420617688U CN 204116543 U CN204116543 U CN 204116543U
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- cup
- insulating sleeve
- compound system
- breakdown characteristics
- conducting rod
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Abstract
An electrode cup for measuring the breakdown characteristic of a transformer oil-paper composite system comprises a cup body, wherein a rectangular ring is arranged in the cup body, corresponding grooves are formed in the inner sides of the upper edge and the lower edge of the rectangular ring, the left side and the right side of the cup body are respectively connected with an insulating sleeve, the insulating sleeves penetrate through the cup body and enter the rectangular ring, a grading ring is arranged at one end, away from the cup body, of each insulating sleeve, a conducting rod is arranged in each insulating sleeve, an electrode tip is arranged at one end, close to the rectangular ring, of each conducting rod through a connecting rod, a supporting insulator is arranged below the cup body, and the cup body; the insulating property of the transformer oil is utilized to increase the surface flashover voltage level, the insulating sleeve with the umbrella group is adopted to improve the surface flashover voltage level of the outside of the electrode cup, and the breakdown characteristic test of a composite structure formed by a plurality of layers of paperboards and a plurality of oil gaps is easily realized. The volume of the cup body is reduced under the same voltage level, and the amount of oil used for the test is reduced.
Description
Technical field
The utility model relates to a kind of compact pole cup measured for transformer oil paper composite body system breakdown characteristics, belongs to the insulating property assessment technique field of electric power insulating oil and solid insulating material.
Background technology
Along with China's power transmission and transformation rapid industrial development, and 1000kV ultra-high voltage AC transmission engineering and the ± Fast Construction of 800kV extra-high voltage direct-current transmission engineering, the manufacturing technology as the transformer of the nucleus equipment in project of transmitting and converting electricity, converter power transformer and reactor is developed all fast.Oil-paper combination insulation structure remains transformer, reactor and converter power transformer main flow insulation system, is also the core technology of manufacturing technology.In operation, transformer, reactor and converter power transformer all will bear the long period effect of alternating voltage, lightning impulse and switching overvoltage, and the oilpaper compound system as equipment primary insulation structure needs to possess higher anti-electric breakdown performance.Therefore, the breakdown characteristics examination about transformer oil paper composite body system is the key means manufacturing material selection.
At present, the pole cup (case) both at home and abroad for carrying out the breakdown characteristics research of transformer oil paper composite body system mainly contains two kinds of modes: a kind of pole cup (case) body being cardboard and vertically placing; Another kind is pole cup (case) body of cardboard horizontal positioned.Pole cup (case) body of cardboard horizontal positioned is when doing the research of oilpaper compound system breakdown characteristics, the major defect existed is that the bubble of cardboard bottom accumulation is not easy to eliminate, the micro-bubble particularly produced in high-potting process is more difficult, the direct authenticity affecting oilpaper compound system insulating property and investigate, and inconsistent with the vertical stratification of power equipment major insulation.When adopting pole cup (case) that cardboard is vertically placed, its architectural feature is held consistent with the vertical stratification of power equipment major insulation, produce bubble also easily to discharge, but, existing test chamber is all by the standing finish of electrode cup with vertical placement cardboard, is placed on together in fuel tank, causes the long-pending body testing fuel tank very large like this, test oil amount is a lot, increases the difficulty of replica test.For the defect of the vertical electrodes case of existing cardboard, design a kind of compact pole cup measured for transformer oil paper composite body system breakdown characteristics, to address the aforementioned drawbacks, and in studying with oilpaper compound system breakdown characteristics under high pressure.
Summary of the invention
The purpose of this utility model is to provide a kind of compact pole cup measured for transformer oil paper composite body system breakdown characteristics, on the basis ensureing inside and outside surface insulation performance, oil-gap is easy to fine setting, the quantity that cardboard is placed also easily adjusts, and is also suitable for the development test of multilayer oilpaper compound system breakdown characteristics.
For achieving the above object, the utility model provides a kind of pole cup for measuring transformer oilpaper compound system breakdown characteristics, comprise cup, straight-flanked ring is provided with in described cup, on described straight-flanked ring, corresponding groove is equipped with inside lower both sides, described cup is each side connected with an insulating sleeve, it is inner that described insulating sleeve enters into described straight-flanked ring through described cup, described insulating sleeve is provided with grading ring away from one end of described cup, conducting rod is provided with in described insulating sleeve, described conducting rod is provided with electrode tip near one end of described straight-flanked ring by connecting link.
Further, the groove on described straight-flanked ring is one or more.
Further, described electrode tip stretches out described insulating sleeve and is positioned at described straight-flanked ring inside.
Further, described conducting rod stretches out grading ring away from one end of described straight-flanked ring.
Further, described insulating sleeve is with umbrella group structure.
Further, described connecting link and described conducting rod are for being flexibly connected.
Preferably, described connecting link and described conducting rod are threaded connection.
Further, be provided with supporting insulator below described cup, described cup is parallel with described supporting insulator.
Further, described supporting insulator is with umbrella group structure.
Further, described supporting insulator lower end is fixed with base.
Further, universal wheel is provided with below described base.
The utility model compared with prior art, the inner surface insulation of cup adopts insulating sleeve to stretch in transformer oil, transformer oil insulating property are utilized to increase edge flashing electric pressure, external insulation adopts the insulating sleeve of band cluster parachute, improve the outside edge flashing electric pressure of pole cup, cardboard is installed the fixing cup medial surface slot mode that adopts and is realized, and, be easy to the breakdown characteristics test realizing couch board and many oil-gap composition composite structures.Under identical electric pressure, reduce the volume of cup, reduce test oil amount, greatly increase the convenience of test operation, be more suitable for the test under more high voltage.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is the front elevation of a kind of pole cup for measuring transformer oilpaper compound system breakdown characteristics described in the utility model;
Fig. 2 is the vertical view of a kind of pole cup for measuring transformer oilpaper compound system breakdown characteristics described in the utility model;
Fig. 3 is the structural representation of straight-flanked ring described in the utility model;
Fig. 4 is the structural representation of conducting rod described in the utility model;
Fig. 5 is the structural representation of connecting link described in the utility model.
In figure: 1, cup; 2, insulating sleeve; 3, grading ring; 4, supporting insulator; 5, base; 6, cardboard; 7, electrode tip; 8, conducting rod; 9, connecting link; 10, straight-flanked ring; 11, universal wheel, 12, groove.
Embodiment
Provide embodiment below, by reference to the accompanying drawings the utility model is described in detail, but not as to restriction of the present utility model.
First embodiment
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model, comprise cup 1, straight-flanked ring 10 is provided with in described cup 1, corresponding groove 12 is equipped with inside the described upper and lower both sides of straight-flanked ring 10, described cup 1 is each side connected with an insulating sleeve 2, it is inner that described insulating sleeve 2 enters into straight-flanked ring 10 through cup 1, described insulating sleeve 2 is provided with grading ring 3 away from one end of cup 1, be provided with conducting rod 8 in described insulating sleeve 2, described conducting rod 8 is provided with electrode tip 7 near one end of straight-flanked ring 10 by connecting link 9.
During concrete use, pole cup is assembled, insulating board 6 is inserted in groove 12, add insulating oil, high-voltage power supply connecting line is connected with the conducting rod 8 of pole cup one end, another conducting rod 8 of the pole cup other end is connected with ground wire, and high-voltage power supply increases continuously till output voltage, in pole cup, punch-through occurs, and this magnitude of voltage is the voltage breakdown of paper oil insulation compound system.
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model reduces the volume of cup 1 under identical electric pressure, decreases test oil amount, considerably increases the convenience of test operation.
Second embodiment
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model, comprise cup 1, straight-flanked ring 10 is provided with in described cup 1, on described straight-flanked ring 10, corresponding groove 12 is equipped with inside lower both sides, groove 12 on described straight-flanked ring 10 is multiple, described cup 1 is each side connected with an insulating sleeve 2, it is inner that described insulating sleeve 2 enters into straight-flanked ring 10 through cup 1, described insulating sleeve 2 is provided with grading ring 3 away from one end of cup 1, conducting rod 8 is provided with in described insulating sleeve 2, described conducting rod 8 is provided with electrode tip 7 near one end of straight-flanked ring 10 by connecting link 9.
The difference of the present embodiment and the first embodiment is that the groove 12 on straight-flanked ring 10 has multiple (as shown in Figure 3).
During concrete use, pole cup is assembled, multiple insulating boards 6 are inserted in groove 12 respectively, add insulating oil, high-voltage power supply connecting line is connected with the conducting rod 8 of pole cup one end, another conducting rod 8 of the pole cup other end is connected with ground wire, and high-voltage power supply increases continuously till output voltage, in pole cup, punch-through occurs, and this magnitude of voltage is the voltage breakdown of paper oil insulation compound system.
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model reduces the volume of cup 1 under identical electric pressure, decrease test oil amount, considerably increase the convenience of test operation, and be easy to the breakdown characteristics test realizing couch board 6 and many oil-gap composition composite structures.
3rd embodiment
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model, comprise cup 1, straight-flanked ring 10 is provided with in described cup 1, on described straight-flanked ring 10, corresponding groove 12 is equipped with inside lower both sides, groove 12 on described straight-flanked ring 10 is multiple, described cup 1 is each side connected with an insulating sleeve 2, described insulating sleeve 2 is with umbrella group structure, it is inner that described insulating sleeve 2 enters into straight-flanked ring 10 through cup 1, described insulating sleeve 2 is provided with grading ring 3 away from one end of cup 1, conducting rod 8 is provided with in described insulating sleeve 2, described conducting rod 8 is provided with electrode tip 7 (as shown in Figure 2) near one end of straight-flanked ring 10 by connecting link 9.
The difference of the present embodiment and the second embodiment is that described insulating sleeve 2 is with umbrella group structure.
During concrete use, pole cup is assembled, multiple insulating boards 6 are inserted in groove 12 respectively, add insulating oil, high-voltage power supply connecting line is connected with the conducting rod 8 of pole cup one end, another conducting rod 8 of the pole cup other end is connected with ground wire, and high-voltage power supply increases continuously till output voltage, in pole cup, punch-through occurs, and this magnitude of voltage is the voltage breakdown of paper oil insulation compound system.
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model reduces the volume of cup 1 under identical electric pressure, decrease test oil amount, considerably increase the convenience of test operation, be easy to the breakdown characteristics test realizing couch board 6 and many oil-gap composition composite structures, and external insulation adopts the insulating sleeve 2 of band cluster parachute, improve the outside edge flashing electric pressure of pole cup.
4th embodiment
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model, comprise cup 1, straight-flanked ring 10 is provided with in described cup 1, on described straight-flanked ring 10, corresponding groove 12 is equipped with inside lower both sides, groove 12 on described straight-flanked ring 10 is multiple, described cup 1 is each side connected with an insulating sleeve 2, described insulating sleeve 2 is with umbrella group structure, it is inner that described insulating sleeve 2 enters into straight-flanked ring 10 through cup 1, described insulating sleeve 2 is provided with grading ring 3 away from one end of cup 1, conducting rod 8 is provided with in described insulating sleeve 2, described conducting rod 8 is provided with electrode tip 7 near one end of straight-flanked ring 10 by connecting link 9, described connecting link 9 and described conducting rod 8 are for being flexibly connected, described connecting link 9 can rotate freely mobile (as shown in Figure 4 and Figure 5) in described conducting rod 8.
The present embodiment and the difference of the 3rd embodiment are that described connecting link 9 and described conducting rod 8 are for being flexibly connected, and described connecting link 9 can rotate freely movement in described conducting rod 8.
During concrete use, pole cup is assembled, multiple insulating boards 6 are inserted in groove 12 respectively, after regulating the distance (as 1mm or 5mm) between electrode tip 7 and insulating board 6, add insulating oil, be connected by high-voltage power supply connecting line with the conducting rod 8 of pole cup one end, another conducting rod 8 of the pole cup other end is connected with ground wire, high-voltage power supply increases continuously till output voltage, in pole cup, punch-through occurs, and this magnitude of voltage is the voltage breakdown of paper oil insulation compound system.
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model reduces the volume of cup 1 under identical electric pressure, decrease test oil amount, considerably increase the convenience of test operation, be easy to the breakdown characteristics test realizing couch board 6 and many oil-gap composition composite structures, external insulation adopts the insulating sleeve 2 of band cluster parachute, improve the outside edge flashing electric pressure of pole cup, and because connecting link 9 and described conducting rod 8 are for being flexibly connected, be easy to regulate electrode gap.
5th embodiment
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model, comprise cup 1, straight-flanked ring 10 is provided with in described cup 1, on described straight-flanked ring 10, corresponding groove 12 is equipped with inside lower both sides, groove 12 on described straight-flanked ring 10 is multiple, described cup 1 is each side connected with an insulating sleeve 2, described insulating sleeve 2 is with umbrella group structure, it is inner that described insulating sleeve 2 enters into straight-flanked ring 10 through cup 1, described insulating sleeve 2 is provided with grading ring 3 away from one end of cup 1, conducting rod 8 is provided with in described insulating sleeve 2, described conducting rod 8 is provided with electrode tip 7 near one end of straight-flanked ring 10 by connecting link 9, described connecting link 9 and described conducting rod 8 are for being flexibly connected, described connecting link 9 can rotate freely movement in described conducting rod 8, supporting insulator 4 is provided with below described cup 1, described cup 1 is parallel with supporting insulator 4, described supporting insulator is with umbrella group structure, described supporting insulator 4 lower end is fixed with below base 5 described in base 5 and is provided with universal wheel 11 (as shown in Figure 1).
The difference of the present embodiment and the 4th embodiment is that described supporting insulator 4 lower end is fixed with below base 5 described in base 5 and is provided with universal wheel 11.
During concrete use, pole cup is assembled, multiple insulating boards 6 are inserted in groove 12 respectively, after regulating the distance (as 1mm or 5mm) between electrode tip 7 and insulating board 6, add insulating oil, be connected by high-voltage power supply connecting line with the conducting rod 8 of pole cup one end, another conducting rod 8 of the pole cup other end is connected with ground wire, high-voltage power supply increases continuously till output voltage, in pole cup, punch-through occurs, and this magnitude of voltage is the voltage breakdown of paper oil insulation compound system.
Pole cup for measuring transformer oilpaper compound system breakdown characteristics of the present utility model reduces the volume of cup 1 under identical electric pressure, decrease test oil amount, considerably increase the convenience of test operation, be easy to the breakdown characteristics test realizing couch board 6 and many oil-gap composition composite structures, external insulation adopts insulating sleeve 2 and the supporting insulator 4 of band cluster parachute, improve the outside edge flashing electric pressure of pole cup, because connecting link 9 and described conducting rod 8 are for being flexibly connected, be easy to regulate electrode gap, and below pole cup, be provided with transportable supporting insulator 4, conveniently moving during use.
Certainly; the utility model also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claims in the present invention.
Claims (11)
1. the pole cup for measuring transformer oilpaper compound system breakdown characteristics, comprise cup (1), it is characterized in that: in described cup (1), be provided with straight-flanked ring (10), on described straight-flanked ring (10), corresponding groove (12) is equipped with inside lower both sides, described cup (1) is each side connected with an insulating sleeve (2), it is inner that described insulating sleeve (2) enters into described straight-flanked ring (10) through described cup (1), described insulating sleeve (2) is provided with grading ring (3) away from one end of described cup (1), conducting rod (8) is provided with in described insulating sleeve (2), described conducting rod (8) is provided with electrode tip (7) near one end of described straight-flanked ring (10) by connecting link (9).
2. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 1, is characterized in that: the groove (12) on described straight-flanked ring (10) is for one or more.
3. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 1, is characterized in that: described electrode tip (7) stretches out described insulating sleeve (2) and is positioned at described straight-flanked ring (10) inside.
4. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 1, is characterized in that: described conducting rod (8) stretches out grading ring (3) away from one end of described straight-flanked ring (10).
5. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 1, is characterized in that: described insulating sleeve (2) is with umbrella group structure.
6. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 1, is characterized in that: described connecting link (9) and described conducting rod (8) are for being flexibly connected.
7. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 6, is characterized in that: described connecting link (9) and described conducting rod (8) are threaded connection.
8. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 1, it is characterized in that: described cup (1) below is provided with supporting insulator (4), and described cup (1) is parallel with described supporting insulator (4).
9. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to claim 8, is characterized in that: described supporting insulator (4) is with umbrella group structure.
10. the pole cup for measuring transformer oilpaper compound system breakdown characteristics according to any one of claim 1 ~ 9, is characterized in that: described supporting insulator (4) lower end is fixed with base (5).
11. pole cups for measuring transformer oilpaper compound system breakdown characteristics according to claim 10, is characterized in that: described base (5) below is provided with universal wheel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617688.3U CN204116543U (en) | 2014-10-23 | 2014-10-23 | Electrode cup for measuring breakdown characteristic of transformer oil-paper composite system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617688.3U CN204116543U (en) | 2014-10-23 | 2014-10-23 | Electrode cup for measuring breakdown characteristic of transformer oil-paper composite system |
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| Publication Number | Publication Date |
|---|---|
| CN204116543U true CN204116543U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617688.3U Expired - Fee Related CN204116543U (en) | 2014-10-23 | 2014-10-23 | Electrode cup for measuring breakdown characteristic of transformer oil-paper composite system |
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| CN (1) | CN204116543U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957538A (en) * | 2018-01-03 | 2018-04-24 | 国网陕西省电力公司经济技术研究院 | The experimental method that compound field is formed inside a kind of simulation converter power transformer |
| CN108957259A (en) * | 2018-07-09 | 2018-12-07 | 上海交通大学 | Transformer oil paper insulation edge flashing and breakdown joint test device |
| CN110853468A (en) * | 2019-12-06 | 2020-02-28 | 杭州睿笛生物科技有限公司 | High-voltage electric pulse experimental device and using method thereof |
| CN112595946A (en) * | 2021-03-02 | 2021-04-02 | 奥顿电气集团有限公司 | Insulating paperboard electrical strength experiment electrode |
-
2014
- 2014-10-23 CN CN201420617688.3U patent/CN204116543U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957538A (en) * | 2018-01-03 | 2018-04-24 | 国网陕西省电力公司经济技术研究院 | The experimental method that compound field is formed inside a kind of simulation converter power transformer |
| CN108957259A (en) * | 2018-07-09 | 2018-12-07 | 上海交通大学 | Transformer oil paper insulation edge flashing and breakdown joint test device |
| CN108957259B (en) * | 2018-07-09 | 2020-08-11 | 上海交通大学 | Combined test device for flashover and breakdown along surface of transformer oil-paper insulation |
| CN110853468A (en) * | 2019-12-06 | 2020-02-28 | 杭州睿笛生物科技有限公司 | High-voltage electric pulse experimental device and using method thereof |
| CN110853468B (en) * | 2019-12-06 | 2024-05-24 | 杭州睿笛生物科技有限公司 | High-voltage electric pulse experimental device and application method thereof |
| CN112595946A (en) * | 2021-03-02 | 2021-04-02 | 奥顿电气集团有限公司 | Insulating paperboard electrical strength experiment electrode |
| CN112595946B (en) * | 2021-03-02 | 2021-05-07 | 奥顿电气集团有限公司 | Insulating paperboard electrical strength experiment electrode |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |