CN102012476A - Low-temperature superconductive insulating paschen discharge tester - Google Patents
Low-temperature superconductive insulating paschen discharge tester Download PDFInfo
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- CN102012476A CN102012476A CN2010102430129A CN201010243012A CN102012476A CN 102012476 A CN102012476 A CN 102012476A CN 2010102430129 A CN2010102430129 A CN 2010102430129A CN 201010243012 A CN201010243012 A CN 201010243012A CN 102012476 A CN102012476 A CN 102012476A
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Abstract
The invention discloses a low-temperature superconductive insulating paschen discharge tester comprising a vacuum chamber, wherein an end cover is arranged at the end part of the vacuum chamber in a sealing manner; a vacuum exhaust pipe and an air supplementing pipe which are in parallel connected penetrate through the end cover and extend into the vacuum chamber; a test sample is arranged in the vacuum chamber; the high-voltage input end of the test sample is connected with a high-voltage lead and is led out; the low-temperature superconductive insulating paschen discharge tester further comprises two vacuum gauge tubes; the tail ends of the two vacuum gauge tubes are respectively connected with vacuum gauges; the front ends of the two vacuum gauge tubes are joined at one part, penetrate through the end cover and extend into the vacuum chamber; and the outer wall of the vacuum chamber is grounded by a lead. The low-temperature superconductive insulating paschen discharge tester has simple structure and is convenient for installation and easy for operation; and by using a paschen discharge test of insulating samples to research and explore the insulation process of EAST (Experimental Advanced Superconducting Tokamak) key components, the selection of the insulating treatment process of a superconductive magnet system can be solved.
Description
Technical field
The present invention relates to a kind of multi-usage low-temperature superconducting insulation Paschen discharge test device, be applicable to the High-Voltage Insulation field tests.
Background technology
Along with the constantly dark people of superconducting power applied research, the superconducting power apparatus of developed country is just progressively near practicability and industrialization level.Controlled nuclear fusion is based on the principle of deuterium, tritium thermonuclear fusion reaction, obtains inexhaustible clean energy resource.EAST superconducting Tokamak main frame is the core of these major scientific projects, and it is to be combined by vertical (TF) superconducting coil, poloidal field (PF) superconducting coil; Coil all adopts the 4.2K supercritical helium to compel the stream cooling.The EAST device is made up of critical pieces such as longitudinal field coil, poloidal coil, vacuum chamber, cold screen, outer Dewar and supports.Crucial insulating element High-Voltage Insulation performance when studying superconducting magnet stable operation, we have designed the High-Voltage Insulation performance testing device.
Superconducting magnet mainly contains the requirement of insulating material: 1. proof voltage is poor because the perviousness of liquid helium is strong for insulating property, and therefore, the insulating material of superconducting magnet will have certain compressive resistance and anti-creeping discharge ability; 2. mechanical property should have enough physical strengths and plasticity, bearing the great electromagnetic force of superconducting magnet, and after cold cycling repeatedly, still has required dielectric properties and mechanical property; 3. thermal behavior should have good heat-conducting, and the thermal characteristics of insulating material and superconductor should be tried one's best approaching; 4. manufacturability should be easy to machine-shaping and assembling; When the 5. superconducting magnet in the capability of resistance to radiation nuclear device, its insulating material also needed to tolerate superconducting magnetic body quench, local overheating may cause magnet to damage, and also may produce high voltage and cause that the magnet layer insulation punctures.
Summary of the invention
The purpose of this invention is to provide a kind of low-temperature superconducting insulation Paschen discharge test device, study and explore the insulating process of EAST critical component, solve the insulating treatment process of superconducting magnet system and select by insulated sample Paschen discharge test.
Technical scheme of the present invention is as follows:
A kind of low-temperature superconducting insulation Paschen discharge test device includes vacuum chamber, and it is characterized in that: the end seal of described vacuum chamber has been equipped with end cap, has the vacuum exhaust pipe that is in parallel and blowdown pipe to pass described end cap and extend in the described vacuum chamber; Be placed with specimen in the described vacuum chamber, the high voltage input end of described specimen is connected with lead and draws; Also include two vacuum gauges, described two ends of regulating are connected with vacuum meter respectively, and the front end of two vacuum gauge is compiled in a place, pass described end cap and extend in the described vacuum chamber; The outer wall of described vacuum chamber is by lead ground connection.
Beneficial effect of the present invention:
The present invention is simple in structure, and is easy for installation, and easy operating is embodied in:
(1), installation, convenient disassembly; The sealing of employing steel flange, sealing effectiveness is better;
(2), be suitable for the short sample Paschen of multiple insulation discharge test, by changing vacuum chamber length, can satisfy the insulation sample of different length;
(3), vacuumize with gas supplementing opening design lightly, simple to operate, be convenient to safeguard;
(4), vacuum measurement adopts high and low vacuum to regulate vacuum measurement scope 1 * 10 for two kinds
5-10
-3Pa;
(5), the class of insulation is up to more than the 15kV, by increasing the surface creepage distance, the class of insulation can be brought up to higher level.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
Referring to Fig. 1, a kind of low-temperature superconducting insulation Paschen discharge test device includes vacuum chamber 7, and the end seal of vacuum chamber 7 has been equipped with end cap 6, has the vacuum exhaust pipe 1 that is in parallel and blowdown pipe 2 to pass end cap 6 and extend in the vacuum chamber 7; Be placed with specimen 8 in the vacuum chamber 7, the high voltage input end of specimen 8 is connected with lead and draws; Also include 4,5, two of two vacuum gauges and regulate the front end that 4,5 end is connected with the vacuum gauge 4,5 of 9,10, two in vacuum meter respectively and be compiled in a place, pass end cap 6 and extend in the vacuum chamber 7; The outer wall of vacuum chamber 7 is by lead ground connection.
Vacuum exhaust pipe 1 is connected with the vacuum unit by corrugated tube, vacuum chamber 7 is evacuated to the vacuum of requirement; The effect of blowdown pipe 2 is that Paschen when discharge is to blowdown pipe 2 tonifying Qi; Regulate 4,5 for two and be respectively high and low vacuum gauge, be used to detect the vacuum tightness in the vacuum chamber 7, its testing result draws by the reading on two vacuum meters 9,10; The end of vacuum chamber 7 and end cap 6 fasten by many M8 screw threads, and vacuum chamber 7 is the test space of specimen 8.
Claims (1)
1. low-temperature superconducting insulation Paschen discharge test device includes vacuum chamber, and it is characterized in that: the end seal of described vacuum chamber has been equipped with end cap, has the vacuum exhaust pipe that is in parallel and blowdown pipe to pass described end cap and extend in the described vacuum chamber; Be placed with specimen in the described vacuum chamber, the high voltage input end of described specimen is connected with lead and draws; Also include two vacuum gauges, described two ends of regulating are connected with vacuum meter respectively, and the front end of two vacuum gauge is compiled in a place, pass described end cap and extend in the described vacuum chamber; The outer wall of described vacuum chamber is by lead ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010243012A CN102012476B (en) | 2010-07-27 | 2010-07-27 | Low-temperature superconductive insulating paschen discharge tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010243012A CN102012476B (en) | 2010-07-27 | 2010-07-27 | Low-temperature superconductive insulating paschen discharge tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102012476A true CN102012476A (en) | 2011-04-13 |
| CN102012476B CN102012476B (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010243012A Expired - Fee Related CN102012476B (en) | 2010-07-27 | 2010-07-27 | Low-temperature superconductive insulating paschen discharge tester |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253319A (en) * | 2011-05-04 | 2011-11-23 | 中国科学院等离子体物理研究所 | Solid insulation voltage resistance performance test system under high voltage and low temperature Paschen condition |
| CN102426324A (en) * | 2011-08-24 | 2012-04-25 | 中国科学院等离子体物理研究所 | Tester for testing insulation low-temperature performance of superconducting electrical component |
| CN106483433A (en) * | 2016-10-09 | 2017-03-08 | 中国科学院合肥物质科学研究院 | A kind of control system testing vacuum dynamic equilibrium for superconducting magnet Paschen |
| CN109655725A (en) * | 2019-01-04 | 2019-04-19 | 合肥聚能电物理高技术开发有限公司 | The quickly device and method of detection solid insulating layer Paschen performance at low pressure |
| CN113325278A (en) * | 2021-05-25 | 2021-08-31 | 长春捷翼汽车零部件有限公司 | Insulation and voltage resistance detection method and detection equipment for wire harness and automobile wire harness assembly line |
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| CN1319244A (en) * | 1999-06-04 | 2001-10-24 | 松下电器产业株式会社 | Gas discharge display and method for producing the same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102253319A (en) * | 2011-05-04 | 2011-11-23 | 中国科学院等离子体物理研究所 | Solid insulation voltage resistance performance test system under high voltage and low temperature Paschen condition |
| CN102253319B (en) * | 2011-05-04 | 2013-07-03 | 中国科学院等离子体物理研究所 | Solid insulation voltage resistance performance test system under high voltage and low temperature Paschen condition |
| CN102426324A (en) * | 2011-08-24 | 2012-04-25 | 中国科学院等离子体物理研究所 | Tester for testing insulation low-temperature performance of superconducting electrical component |
| CN106483433A (en) * | 2016-10-09 | 2017-03-08 | 中国科学院合肥物质科学研究院 | A kind of control system testing vacuum dynamic equilibrium for superconducting magnet Paschen |
| CN109655725A (en) * | 2019-01-04 | 2019-04-19 | 合肥聚能电物理高技术开发有限公司 | The quickly device and method of detection solid insulating layer Paschen performance at low pressure |
| CN113325278A (en) * | 2021-05-25 | 2021-08-31 | 长春捷翼汽车零部件有限公司 | Insulation and voltage resistance detection method and detection equipment for wire harness and automobile wire harness assembly line |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102012476B (en) | 2012-10-10 |
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