Experimental study of the breakdown characteristic of glycerol as energy storage medium in pulse forming line

2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena Pub Date : 2013-10-01 DOI:10.1109/CEIDP.2013.6748250

H. B. Zhang, J. Yang, F. Gao, J. J. Lin

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引用次数: 5

Abstract

In this paper, the breakdown characteristic of glycerol acted by high voltage pulse with positive and negative polarity under different pressures and temperatures was researched experimentally. A coaxial voltage withstanding device for high voltage breakdown test was well designed and manufactured. The polarity test results of glycerol show that, at the temperature of 25 °C, the averaged positive and negative polarity breakdown field strength was found to be 246 kV/cm and 256 kV/cm respectively, which indicates that glycerol has no polarity. In addition, compared with the situation of standard atmospheric pressure, the breakdown field strength at 7 atms was increased by approximately 24.4%. Furthermore, breakdown test at different temperatures show that the average breakdown field strength of glycerol reduces gradually from 320 kV/cm for minus 45 °C to 200 kV/cm for 55 °C, and it can also be found that the breakdown field strength is gradually reduced with the increasing of liquid temperature, and the trend tends to be smooth.

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甘油作为储能介质在脉冲形成线击穿特性的实验研究

实验研究了正、负极性高压脉冲作用下甘油在不同压力和温度下的击穿特性。设计并制作了同轴耐压高压击穿试验装置。甘油极性测试结果表明，在25℃温度下，正极性击穿场强平均为246 kV/cm，负极性击穿场强平均为256 kV/cm，表明甘油无极性。另外，与标准大气压情况相比，7 μ m击穿场强提高了约24.4%。另外，不同温度下的击穿试验表明，甘油的平均击穿场强从- 45℃时的320 kV/cm逐渐降低到55℃时的200 kV/cm，并且击穿场强随液体温度的升高而逐渐降低，且趋势趋于平缓。

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2013 Annual Report Conference on Electrical Insulation and Dielectric Phenomena

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