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为了将直流300千伏高电压引入高气压钢筒内,试制了一种实验室用直流300千伏绝缘套管。绝缘套管的上半部处于大气中,下半部处于充有N_2和CO_2混合气体的高气压钢筒内。
In order to introduce a high DC voltage of 300 kV into a high-pressure steel cylinder, a laboratory DC 300 kV bushing was manufactured. The upper half of the bushing is in the atmosphere and the lower half is in a high pressure steel cylinder filled with N 2 and CO 2 gas.