Nanosecond continuous pulse ageing device and method of vacuum interrupter

Abstract

The invention relates to a nanosecond continuous pulse ageing device and method of a vacuum interrupter. The nanosecond continuous pulse ageing device comprises a control system, a direct-current power supply, an energy storage unit, a forming network, a triggering unit and a control switch part, wherein the control system is connected to the direct-current power supply and the triggering unit; the output end of the direct-current power supply is connected with the energy storage unit and the triggering unit is connected with the control switch; the energy storage unit is connected with the forming network and the forming network is used for outputting a pulse voltage to the vacuum interrupter through a current limiting unit; the control unit is connected with the energy storage unit and the lower part of the vacuum interrupter is provided with an adjusting device. According to the method provided by the invention, by adjusting the energy of one time of the discharging process and controlling discharging times in the unit time, the ageing degree and the ageing tendency are controlled and the ageing uniformity of the vacuum interrupter is improved. In the invention, a nanosecond-grade continuous pulse source is taken as an ageing power supply of the vacuum interrupter. The best ageing effect of the vacuum interrupter can be achieved by controlling the discharging energy of single pulse, the repetition frequency and the action time of the continuous pulse.

Description

technical field [0001] The invention belongs to the technical field of aging of vacuum interrupters, and specifically relates to an aging device for aging of vacuum interrupters with a nanosecond continuous pulse source as the core, and an aging device based on the new type of aging device. Refining method. Background technique [0002] At present, the traditional aging technologies for vacuum interrupters mainly include current aging and spark aging. The main function of current aging is to use the electric abrasion of the arc to remove the insulation weaknesses such as gases, oxides, and micro-protrusions attached to the electrode surface. It is beneficial to breaking large currents and suppressing after-arc breakdown. Spark aging technology refers to applying high voltage to the vacuum interrupter under static conditions, causing strong spark discharge between the contacts inside the vacuum interrupter and between the contacts and the shield. High beta emission sites on...

AI Technical Summary

Problems solved by technology

[0004] Whether it is the traditional burn-in method or the method of using high-frequency current to burn-in the vacuum interrupter, there are shortcomings such as the discharge energy is difficult to control, the number of breakdowns per unit time cannot be accurately set, and the burn-in degree and trend cannot be accurately controlled.

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