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Polarity Effects of Propylene Carbonate on Breakdown Strength in Microsecond Range
Zhen Wang, Zi-cheng Zhang*, Jian-de Zhang
College of Opto-electronic Science and Engineering, National University of Defense Technology, Chang-sha 410073, China
Abstract:
We investigate the polarity effects of the propylene carbonate on the breakdown voltage using the needle-plate electrodes with gaps of 0.5, 1.0, and 2.0 mm. The devices used in this study involve a compact capacitive-energy-storage pulse power source with charging time varying from 5 ms to 20 ms and a test cell with the needle-plate electrodes. The breakdown voltage is recorded by a digital oscilloscope for each gap. The results of these three groups indicate that the positive breakdown voltage is higher than the negative one and the breakdown voltage of the PC increases with the ascending electrode gap. In addition, a simulation is conducted to support this experiment. Some explanations about the polarity effect of the PC are also given.
Key words:  Breakdown strength, Propylene carbonate, Polarity effect
FundProject:
微秒脉冲下极性效应对碳酸丙烯酯击穿场强的影响
王桢, 张自成*, 张建德
国防科技大学光电科学与工程学院,长沙 410073
摘要:
通过对比碳酸丙烯酯在针板电极间距分别为0.5、1.0和2.0 mm下的击穿电压大小的实验,研究碳酸丙烯酯的极性效应.实验设备包含一个充电时间在5~20毫秒的电容储能型脉冲型脉冲功率源和一个内置针板电极的击穿试件. 每一组的击穿电压通过示波器显示记录. 三组不同间距下的击穿实验数据表明碳酸丙烯酯的正电极击穿场强高于负电极击穿场强,并且击穿场强随着电极间距的增大而增 大. 对碳酸丙烯酯针板电极的击穿进行了仿真模拟实验. 基于实验结果对碳酸丙烯酯的极性效应给出了相应的解释.
关键词:  击穿场强,碳酸丙烯酯,极性效应
DOI:10.1063/1674-0068/28/cjcp1504080
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