High Power Laser and Particle Beams, Volume. 32, Issue 4, 045001(2020)
Comparison of insulation properties of several liquid dielectrics under nanosecond pulses
Figures & Tables(10)
Fig. 2. Typical waveform and amplitude of the output voltage of the test platform
Fig. 4. Breakdown data of four liquid dielectrics under the nanosecond pulse
Fig. 5. The breakdown waveforms of four liquid dielectrics under the nanosecond pulse
Fig. 7. Morphology of liquid dielectrics in standard oil cup after 50 times breakdown tests
Table 1. Breakdown data of four liquid dielectrics under DC
View tableView in ArticleTable 1. Breakdown data of four liquid dielectrics under DC
dielectric media relative permittivity breakdown votage/kV relative deviation/% breakdown field strength/(kV/mm) transformer oil 1.87 39.3±4.7 12 15.7 Galden HT200 1.83 55.7±6.8 12.2 22.3 glycerol 31 5.3±0.07 1.3 2.1 deionized water 80 5.2±0.02 0.4 2.08
Table 2. Breakdown data of four liquid dielectrics under the nanosecond pulse
View tableView in ArticleTable 2. Breakdown data of four liquid dielectrics under the nanosecond pulse
dielectric media breakdown votage/kV relative deviation/% breakdown field strength/(kV/mm) transformer oil 262.7±13.34 5.07 105.1 Galden HT200 378.8±37.3 9.8 151.2 glycerol 186.3±6.98 3.75 74.5 deionized water 128.1±9.63 7.5 51.2
Table 3. Density and viscosity of several liquid dielectrics at 20 °C
View tableView in ArticleTable 3. Density and viscosity of several liquid dielectrics at 20 °C
density/（g/cm2） viscosity/（m2/s） deionized water / Galden HT200 1 1.01×10−6 transformer oil 0.895 （5~10）×10−6 glycerol 1.25 （0.458~1.19）×10−3
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Wei Jia, Zhiqiang Chen, Fan Guo, Yaoyao Li, Yuhang Qi, Yongping Chen, Tian Yang. Comparison of insulation properties of several liquid dielectrics under nanosecond pulses[J]. High Power Laser and Particle Beams, 2020, 32(4): 045001
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Received: Sep. 5, 2019
Accepted: --
Published Online: Mar. 30, 2020
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