CN205398766U - A pin electrode preparation facilities for experiment of electric branch - Google Patents
A pin electrode preparation facilities for experiment of electric branch Download PDFInfo
- Publication number
- CN205398766U CN205398766U CN201620171798.0U CN201620171798U CN205398766U CN 205398766 U CN205398766 U CN 205398766U CN 201620171798 U CN201620171798 U CN 201620171798U CN 205398766 U CN205398766 U CN 205398766U
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- needle electrode
- tungsten bar
- preparation facilities
- electrode preparation
- electrolyte
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Abstract
The utility model provides a pin electrode preparation facilities for experiment of electric branch, belongs to the high voltage insulation research field. The utility model discloses an electromagnetic relay, direct voltage source, tungsten bar, negative pole and electrolytic vessel. Wherein electromagnetic relay comprises spring, electro -magnet, metal pole, metal fixation clamp and base. The negative pole comprises the aluminium rounding dish of three aluminium poles fixed stay, and aluminium rounding dish center has the diameter to be 1.5mm's round hole. Put into electrolyte in the electrolytic vessel to arrange the negative pole in electrolytic vessel. The tungsten bar is located the central authorities of cathode aperture, and tungsten bar one end dipes electrolyte, and the immersion depth is 2mm, and the other end is fixed to be arrived on the metal fixation clamp. Direct voltage source's negative pole is connected to the negative pole, and the positive pole is connected to the metal fixation clamp through the electro -magnet.
Description
Technical field
This utility model relates to the device for making of needle electrode in solid insulation needle plate electrode system, belongs to High-Voltage Insulation research field.
Background technology
Nowadays China's rapid economic development, a lot of industry power consumptions improve year by year, the electric pressure of electrical equipment also improves constantly, and the ageing-resistant performance of the insulant used by high-tension power transmission and transformation equipment have to be enough good, and electrical tree aging process is then the major reason causing insulation failure.For the electrical tree aging process mechanism of research material, needle plate model is generally adopted to carry out experimentation.
Current conventional needle electrode preparation facilities Problems existing:
(1) owing to the needle electrode in needle plate electrode system need to have sufficiently small radius of curvature, adopt and must cut off the electricity supply when dropping in tungsten bar bottom immediately and needle electrode is extracted liquid level during chemical-electrical corrosion, otherwise the point branch of needle electrode makes radius of curvature become big owing to continuing generation chemical reaction, scope beyond the radius of curvature that experiment allows, so experimenter needs bottom continuous observation tungsten filament, this causes that conventional efficient is relatively low；
(2) in needle electrode preparation process, owing to cathode aperture is smaller, needle electrode is very easily touched with cathode aperture when taking out, and causes that needle electrode qualification rate is not high.
As can be seen here, needle electrode preparation facilities efficiency traditional at present is low, qualification rate is not high, and this is unfavorable for that the high efficiency of experiment carries out.
Summary of the invention
The purpose of this utility model is to overcome conventional needle electrode preparation facilities Problems existing, it is provided that a kind of needle electrode preparation facilities for electric branch experiment.
Preparation facilities for needle electrode described in the utility model, it includes electromagnetic relay, direct voltage source, tungsten bar, negative electrode and electrolytic vessel；Electromagnetic relay is made up of spring, electric magnet, metallic rod, metal clip and base；Negative electrode is made up of three aluminum bars and aluminium disks, and there are a cathode aperture in aluminium disks central authorities；Electrolytic vessel is put into electrolyte, and negative electrode is placed in electrolytic vessel；Tungsten bar is positioned at the central authorities of cathode aperture, and electrolyte is immersed in tungsten bar one end, and the immersed in liquid level degree of depth is 2mm, and the other end is fixed in metal clip；The negative pole of direct voltage source is connected to negative electrode, and positive pole is connected to metal clip by electric magnet；Connect direct voltage source, electric magnet energising adhesive metallic rod, spring elongation, there is electrochemical corrosion in tungsten bar, loop current is gradually reduced in the process in the electrolytic solution, when the tip portion of tungsten bar is corroded after well completely, loop current reduces rapidly, and the suction-combining force of electric magnet, less than the pulling force of spring, metallic rod is moved, needle electrode is moved out of liquid level of electrolyte, and needle electrode preparation terminates.
Further, described electric magnet rated voltage is 12V, and rated current is 1A.
Further, the diameter of described tungsten bar is 0.6mm, and length is 50mm.
Further, described direct voltage source input voltage is 220 ~ 250V, and output voltage is 0 ~ 15V, and can measure current range is 0 ~ 1A.
Further, described electrolyte is concentration is the NaOH solution of 2mol/L.
Further, described cathode aperture is diameter is the circular hole of 1.5mm.
The beneficial effects of the utility model are:
(1) this device is in the producing process of needle electrode, and needle electrode can automatically disengage liquid level of electrolyte under the effect of relay, and experimenter can operate multiple device simultaneously, improves the efficiency producing needle electrode；
(2) present arrangement avoids misoperation when manually taking out needle electrode and cause that needle electrode is destroyed, and improves the qualification rate that needle electrode is produced.
Accompanying drawing explanation
Fig. 1 is the structural representation of the needle electrode preparation facilities for electric branch experiment described in the utility model.
Fig. 2 is the structural representation of negative electrode in preparation facilities described in the utility model.
In figure: electromagnetic relay 1, direct voltage source 2, tungsten bar 3, negative electrode 4, electrolytic vessel 5, spring 6, electric magnet 7, metallic rod 8, metal clip 9, base 10, aluminum bar 11, aluminium disks 12, cathode aperture 13.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
Detailed description of the invention one:Embodiment of the present utility model provides a kind of needle electrode preparation facilities for electric branch experiment, and it includes electromagnetic relay 1, direct voltage source 2, tungsten bar 3, negative electrode 4 and electrolytic vessel 5；Electromagnetic relay 1 is made up of spring 6, electric magnet 7, metallic rod 8, metal clip 9 and base 10；Negative electrode 4 is made up of three aluminum bars 11 and aluminium disks 12, and there are a cathode aperture 13 in aluminium disks 12 central authorities.Electrolytic vessel 5 is put into electrolyte, and negative electrode 4 is placed in electrolytic vessel 5；Tungsten bar 3 is positioned at the central authorities of cathode aperture 13, and electrolyte is immersed in tungsten bar 3 one end, and the immersed in liquid level degree of depth is 2mm, and the other end is fixed in metal clip 9；The negative pole of direct voltage source 2 is connected to negative electrode 4, and positive pole is connected to metal clip 9 by electric magnet 7；Connect direct voltage source 2, electric magnet 7 is energized adhesive metallic rod 8, spring 6 stretches, and electrochemical corrosion occurs tungsten bar 3 in the electrolytic solution, and loop current is gradually reduced in the process, when the tip portion of tungsten bar 3 is corroded after well completely, loop current reduces rapidly, and the suction-combining force of electric magnet 7, less than the pulling force of spring 6, metallic rod 8 is moved, needle electrode is moved out of liquid level of electrolyte, and needle electrode preparation terminates.
Detailed description of the invention two:Embodiment one is described further by present embodiment, and described electric magnet rated voltage is 12V, and rated current is 1A.
Detailed description of the invention three:Embodiment one is described further by present embodiment, and the diameter of described tungsten bar is 0.6mm, and length is 50mm.
Detailed description of the invention four:Embodiment one is described further by present embodiment, and described direct voltage source input voltage is 220 ~ 250V, and output voltage is 0 ~ 15V, and can measure current range is 0 ~ 1A.
Detailed description of the invention five:Embodiment one is described further by present embodiment, and described electrolyte is concentration is the NaOH solution of 2mol/L.
Detailed description of the invention six:Embodiment one is described further by present embodiment, and described cathode aperture is diameter is the circular hole of 1.5mm.
Claims (6)
1. the needle electrode preparation facilities for electric branch experiment, it is characterised in that: include electromagnetic relay (1), direct voltage source (2), tungsten bar (3), negative electrode (4) and electrolytic vessel (5)；Electromagnetic relay (1) is made up of spring (6), electric magnet (7), metallic rod (8), metal clip (9) and base (10)；Negative electrode (4) is made up of three aluminum bars (11) with supporting role and aluminium disks (12), and there are a cathode aperture (13) in aluminium disks (12) central authorities；Electrolytic vessel (5) is put into electrolyte, and negative electrode (4) is placed in electrolytic vessel (5)；Tungsten bar (3) is positioned at the central authorities of cathode aperture (13), and electrolyte is immersed in tungsten bar (3) one end, and the immersed in liquid level degree of depth is 2mm, and the other end is fixed in metal clip (9)；The negative pole of direct voltage source (2) is connected to negative electrode (4), and positive pole is connected to metal clip (9) by electric magnet (7)；Connect direct voltage source (2), electric magnet (7) energising adhesive metallic rod (8), spring (6) stretches, and electrochemical corrosion occurs tungsten bar (3) in the electrolytic solution, and loop current is gradually reduced in the process, when the tip portion of tungsten bar (3) is corroded after well completely, loop current reduces rapidly, and the suction-combining force of electric magnet (7) is less than the pulling force of spring (6), and metallic rod (8) is upper moves, needle electrode is moved out of liquid level of electrolyte, and needle electrode preparation terminates.
2. a kind of needle electrode preparation facilities for electric branch experiment according to claim 1, it is characterised in that: described electric magnet (7) rated voltage is 12V, and rated current is 1A.
3. a kind of needle electrode preparation facilities for electric branch experiment according to claim 1, it is characterised in that: the diameter of described tungsten bar (3) is 0.6mm, and length is 50mm.
4. a kind of needle electrode preparation facilities for electric branch experiment according to claim 1, described direct voltage source (2) input voltage is 220 ~ 250V, and output voltage is 0 ~ 15V, and can measure current range is 0 ~ 1A.
5. a kind of needle electrode preparation facilities for electric branch experiment according to claim 1, it is characterised in that: described electrolyte is concentration is the NaOH solution of 2mol/L.
6. a kind of needle electrode preparation facilities for electric branch experiment according to claim 1, it is characterised in that: described cathode aperture (13) is diameter is the circular hole of 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171798.0U CN205398766U (en) | 2016-03-08 | 2016-03-08 | A pin electrode preparation facilities for experiment of electric branch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620171798.0U CN205398766U (en) | 2016-03-08 | 2016-03-08 | A pin electrode preparation facilities for experiment of electric branch |
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| Publication Number | Publication Date |
|---|---|
| CN205398766U true CN205398766U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620171798.0U Expired - Fee Related CN205398766U (en) | 2016-03-08 | 2016-03-08 | A pin electrode preparation facilities for experiment of electric branch |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065382A (en) * | 2018-07-05 | 2018-12-21 | 国网浙江省电力有限公司舟山供电公司 | The machine driving single-pole double throw earthing or grounding means of DC earthing electric branch test |
| CN110952130A (en) * | 2019-12-27 | 2020-04-03 | 哈尔滨理工大学 | Device and method for preparing tungsten needle electrode with small curvature radius in electric branch test |
| CN111157856A (en) * | 2020-01-03 | 2020-05-15 | 天津大学 | Insulating electric branch growth characteristic testing arrangement under magnetic field environment |
-
2016
- 2016-03-08 CN CN201620171798.0U patent/CN205398766U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065382A (en) * | 2018-07-05 | 2018-12-21 | 国网浙江省电力有限公司舟山供电公司 | The machine driving single-pole double throw earthing or grounding means of DC earthing electric branch test |
| CN109065382B (en) * | 2018-07-05 | 2024-02-20 | 国网浙江省电力有限公司舟山供电公司 | Mechanical transmission single-pole double-throw grounding device for direct-current grounding branch test |
| CN110952130A (en) * | 2019-12-27 | 2020-04-03 | 哈尔滨理工大学 | Device and method for preparing tungsten needle electrode with small curvature radius in electric branch test |
| CN110952130B (en) * | 2019-12-27 | 2023-09-15 | 哈尔滨理工大学 | Device and method for preparing tungsten needle electrode with small curvature radius in electric branch test |
| CN111157856A (en) * | 2020-01-03 | 2020-05-15 | 天津大学 | Insulating electric branch growth characteristic testing arrangement under magnetic field environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160727 Termination date: 20180308 |
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| CF01 | Termination of patent right due to non-payment of annual fee |