Open AccessЭлектрическая прочность диэлектриков при воздействии двуполярных импульсов напряжения субмикросекундной длительности
Author(s) -
В.Ф. Важов,
Е.В. Петренко,
А.С. Юдин
Publication year - 2022
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2022.04.52253.304-21
Subject(s) - impulse (physics) , high voltage , voltage , impulse generator , electrode , breakdown voltage , materials science , electrical engineering , pulse generator , marx generator , generator (circuit theory) , pulse (music) , dielectric , optoelectronics , engineering , physics , power (physics) , quantum mechanics
The development of electric pulse technologies for the destruction of solids states (rocks) - drilling, cutting and crushing requires reduction of high pulse voltages. In this work, for the first time, studies are proposed and carried out to determine the breakdown voltages of various dielectric media (air, water, rocks) while simultaneously supplying two pulses to the electrode system by two high voltage generators of different polarity - positive and negative, which halves the operating impulse voltage each generator. In addition, experiments have shown that for all media there is a decrease in breakdown voltage in comparison with a monopolar voltage pulse, which reaches 28% - for the breakdown of sandstone, 23% - granite, 24% - water, 25% - air. A physical explanation of the discovered effect is given.