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Aging and insulation testing device for vacuum arc-extinguishing chamber

A technology for vacuum interrupter and insulation testing, which is applied in measuring devices, testing dielectric strength, measuring electricity, etc., and can solve problems such as aging or insulation testing of high-voltage vacuum interrupters.

Active Publication Date: 2021-06-11
TIANJIN PINGGAO INTELLIGENT ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]The purpose of this invention is to provide a vacuum interrupter burn-in and insulation test device to solve the problem that the existing burn-in device cannot be aged or the insulation test is too high The problem of vacuum interrupter of voltage level

Method used

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  • Aging and insulation testing device for vacuum arc-extinguishing chamber
  • Aging and insulation testing device for vacuum arc-extinguishing chamber
  • Aging and insulation testing device for vacuum arc-extinguishing chamber

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specific Embodiment 2

[0078] Specific embodiment 2 of the vacuum interrupter aging and insulation testing device of the present application: the difference between this embodiment and embodiment 1 is that the cover only includes the upper cover, and the sealing ring is arranged on the hole wall of the through hole of the upper cover superior.

specific Embodiment 3

[0079] Specific embodiment 3 of the vacuum interrupter burn-in and insulation testing device of the present application: the difference between this embodiment and embodiment 1 is that the adjustment nut is not included, but an external thread is still provided on the piercing part, and it is passed through Xi'an traffic Wang Zheng and Wang Jimei of the university published any one of the three opening distance regulators recorded in "A New Type of Vacuum Interrupter Opening Distance Regulator" on "High Voltage Electrical Appliances" in the second issue of 1999. When using the type (a) opening distance adjuster, press the lower end of the opening distance adjuster against the upper cover, connect the handle with the threaded part, and adjust the opening distance of the vacuum interrupter by screwing the nut. When using the (b) type or new type of distance adjuster, connect the upper end of the distance adjuster with the external thread on the passing part, press the lower end o...

specific Embodiment 4

[0080] Specific embodiment 4 of the vacuum interrupter burn-in and insulation testing device of the present application: the difference between this embodiment and embodiment 1 is that no upper cover is provided, and the adjusting nut directly abuts against the top surface of the lower turning edge. The through hole of the loam cake is completely located on the lower turning edge. At this time, the aperture of the through hole needs to be set smaller or the adjusting nut has a larger radial dimension so that the adjusting nut can all withstand the top surface of the lower turning edge.

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Abstract

The invention relates to an aging and insulation testing device for a vacuum arc-extinguishing chamber. The aging and insulation testing device for the vacuum arc-extinguishing chamber comprises a shell, the shell is provided with an inflation cavity for accommodating the vacuum arc-extinguishing chamber to be aged or subjected to insulation testing, a conductive connecting rod is used for being fixedly connected with a movable conductive rod of a vacuum arc-extinguishing chamber to be aged, the shell is provided with a connecting rod penetrating-out channel for the conductive connecting rod to penetrate out, and a direct-acting sealing structure is arranged between the connecting rod penetrating-out channel and the peripheral surface of the conductive connecting rod. The sealing peripheral surface of the conductive connecting rod is processed according to high-grade surface processing precision, so that the sealing grade between the sealing peripheral surface and the direct-acting sealing structure is relatively high, the sealing requirement when a relatively large pressure difference exists inside and outside the inflation cavity is met, and the inflation cavity can be filled with compressed gas with relatively high pressure; therefore, the aging and insulation testing device for the vacuum arc-extinguishing chamber has a relatively high insulation grade, thereby being suitable for aging or insulation testing of the vacuum arc-extinguishing chamber with a high voltage grade.

Description

technical field [0001] The invention relates to an aging and insulation testing device for a vacuum interrupter. Background technique [0002] After the vacuum interrupter is welded and packaged, there are microscopic burrs and oxide impurities on the surface of the internal parts. These factors will affect the withstand voltage performance and the ability to break the current of the vacuum interrupter. A high voltage higher than its rated voltage is applied to the dynamic and static ends to age the high-voltage vacuum interrupter. [0003] During the aging process, the opening distance of the vacuum interrupter needs to be adjusted. The authorized announcement number is CN105609346B, and the invention patent with the authorized announcement date of 2017.12.29 discloses a vacuum interrupter aging device and its external insulation protection Tooling, the above-mentioned vacuum interrupter aging device includes a cylindrical shell, the upper end of the cylindrical shell is p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/662G01R31/12
CPCH01H33/66207G01R31/1227H01H2033/66223
Inventor 赵芳帅李小钊方启薛从军刘世柏李锟张杨齐大翠亓春伟王宇浩苏文豪薛玉栋吉磊谢培哲王茜姚锋娟齐婵
Owner TIANJIN PINGGAO INTELLIGENT ELECTRIC
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