Vacuum switch tube direct-current steep-wave bipolar large-current impact aging device and process

A vacuum switch tube, bipolar technology, applied in electrical switches, circuits, electrical components, etc., can solve the problems of contact ablation, insufficient aging, and the impact of safe operation of equipment, so as to improve the breaking success rate, increase Insulation performance and reliability, the effect of improving cleanliness and dielectric strength

Inactive Publication Date: 2016-07-06
XIAN BONENG ELECTRIC TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In recent years, domestic manufacturers have done a lot of research work on the high-current aging test of vacuum switches. The research results show that: the existing DC current aging process has the following two problems: Insufficient aging--the contacts afte...

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  • Vacuum switch tube direct-current steep-wave bipolar large-current impact aging device and process
  • Vacuum switch tube direct-current steep-wave bipolar large-current impact aging device and process
  • Vacuum switch tube direct-current steep-wave bipolar large-current impact aging device and process

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] refer to figure 1 ,Such as figure 1 A vacuum switching tube DC steep-wave bipolar high-current impact aging equipment is shown, including a DC arc-igniting power supply circuit 1, a DC steep-wave high-current bipolar impact circuit 2, and a main charging circuit 3; The arc power supply circuit 1 is connected to a DC steep-wave high-current bipolar impact circuit 2 ; the DC steep-wave high-current bipolar impact circuit 2 is connected to a main charging circuit 3 .

[0027] The DC arc ignition power supply circuit 1 includes a transformer group T2, a three-phase rectifier bridge, a filter c...

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Abstract

The invention discloses a vacuum switch tube direct-current steep-wave bipolar large-current impact aging device and process. The device comprises a direct-current arc-striking power supply circuit, a direct-current steep-wave large-current bipolar impact loop and a main charging circuit. The direct-current arc-striking power supply circuit is connected with the direct-current steep-wave large-current bipolar impact loop. The direct-current steep-wave large-current bipolar impact loop is connected with the main charging circuit. According to the invention, an alternating current cathode spot is adopted to perform current aging on a vacuum switch tube contact, and the cathode spot covers the whole surface of the contact in the aging process, so that neither the phenomenon of insufficient aging nor the phenomenon of excessive aging will happen. The insulating property and the reliability of productions are improved. According to the invention, the cleanliness and the insulating strength of a vacuum switch arc extinguishing chamber are improved, and the breaking success rate at the time when the production encounters a rated short-circuit breaking current for the first time is increased greatly.

Description

technical field [0001] The invention relates to the manufacture of electric vacuum devices and the production and manufacture of vacuum switching tubes, in particular to a vacuum switching tube core component used for vacuum switching tubes DC steep-wave bipolar high-current impact aging equipment and its technology. Background technique [0002] The finish of the vacuum switch is directly related to the insulation strength of the vacuum switch, and the finish is improved through voltage and current aging. In recent years, domestic manufacturers have done a lot of research work on the high-current aging test of vacuum switches. The research results show that: the existing DC current aging process has the following two problems: Insufficient aging--the contacts after aging Only less than 1 / 3 of the area is ablated by the arc; over-aging-the contacts after aging are sometimes severely ablated by the arc locally; this directly affects the insulation strength of the vacuum switc...

Claims

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Application Information

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IPC IPC(8): H01H9/54H01H11/00
CPCH01H9/54H01H11/00
Inventor 金基平毛晋生羽会民
Owner XIAN BONENG ELECTRIC TECH
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