Mobility of charge carriers in dielectric liquids

Research output: Contribution to conferencePaper

Abstract

The mobility of charge carriers in dielectric liquids is not only an intrinsic parameter of the conduction process, but it also can define the pre-breakdown processes in the liquids. The charge carrier mobility also affects the electrostatic behavior of fine and ultra-fine (micrometer and sub-micrometer) particles in -fluids, as the charge induced on dispersed particles is defined by the charge concentration and the velocity of charge carriers in the liquid. In this paper, the charge carrier mobility was obtained by measuring conduction current in different dielectric liquids under DC stress. The investigated liquids included traditional mineral oil, synthetic and natural esters. Both, single polarity and polarity reversal methods were used to obtain the charge carrier mobility in these liquids. The results show significant differences in the mobilities of charge carriers in the mineral oil and in ester liquids. Also, the effects of the electric field on the mobilities has been investigated.

Conference

ConferenceIEEE International Conference on Dielectric Liquids (ICDL) 2019
CountryItaly
CityRoma
Period23/06/1927/06/19
Internet address

Fingerprint

Dielectric liquids
Charge carriers
Carrier mobility
Liquids
Mineral oils
Esters
Electrostatics
Electric fields
Fluids

Keywords

  • synthetic esters
  • mineral oils
  • electric currents
  • charge carrier mobility

Cite this

Xue, Q., Timoshkin, I., Given, M. J., Wilson, M. P., & MacGregor, S. J. (2019). Mobility of charge carriers in dielectric liquids. Paper presented at IEEE International Conference on Dielectric Liquids (ICDL) 2019, Roma, Italy.
Xue, Qingjiang ; Timoshkin, Igor ; Given, Martin J ; Wilson, Mark P ; MacGregor, Scott J. / Mobility of charge carriers in dielectric liquids. Paper presented at IEEE International Conference on Dielectric Liquids (ICDL) 2019, Roma, Italy.
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Xue, Q, Timoshkin, I, Given, MJ, Wilson, MP & MacGregor, SJ 2019, 'Mobility of charge carriers in dielectric liquids' Paper presented at IEEE International Conference on Dielectric Liquids (ICDL) 2019, Roma, Italy, 23/06/19 - 27/06/19, .

Mobility of charge carriers in dielectric liquids. / Xue, Qingjiang; Timoshkin, Igor; Given, Martin J; Wilson, Mark P; MacGregor, Scott J.

2019. Paper presented at IEEE International Conference on Dielectric Liquids (ICDL) 2019, Roma, Italy.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Mobility of charge carriers in dielectric liquids

AU - Xue, Qingjiang

AU - Timoshkin, Igor

AU - Given, Martin J

AU - Wilson, Mark P

AU - MacGregor, Scott J

PY - 2019/6/23

Y1 - 2019/6/23

N2 - The mobility of charge carriers in dielectric liquids is not only an intrinsic parameter of the conduction process, but it also can define the pre-breakdown processes in the liquids. The charge carrier mobility also affects the electrostatic behavior of fine and ultra-fine (micrometer and sub-micrometer) particles in -fluids, as the charge induced on dispersed particles is defined by the charge concentration and the velocity of charge carriers in the liquid. In this paper, the charge carrier mobility was obtained by measuring conduction current in different dielectric liquids under DC stress. The investigated liquids included traditional mineral oil, synthetic and natural esters. Both, single polarity and polarity reversal methods were used to obtain the charge carrier mobility in these liquids. The results show significant differences in the mobilities of charge carriers in the mineral oil and in ester liquids. Also, the effects of the electric field on the mobilities has been investigated.

AB - The mobility of charge carriers in dielectric liquids is not only an intrinsic parameter of the conduction process, but it also can define the pre-breakdown processes in the liquids. The charge carrier mobility also affects the electrostatic behavior of fine and ultra-fine (micrometer and sub-micrometer) particles in -fluids, as the charge induced on dispersed particles is defined by the charge concentration and the velocity of charge carriers in the liquid. In this paper, the charge carrier mobility was obtained by measuring conduction current in different dielectric liquids under DC stress. The investigated liquids included traditional mineral oil, synthetic and natural esters. Both, single polarity and polarity reversal methods were used to obtain the charge carrier mobility in these liquids. The results show significant differences in the mobilities of charge carriers in the mineral oil and in ester liquids. Also, the effects of the electric field on the mobilities has been investigated.

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KW - mineral oils

KW - electric currents

KW - charge carrier mobility

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Xue Q, Timoshkin I, Given MJ, Wilson MP, MacGregor SJ. Mobility of charge carriers in dielectric liquids. 2019. Paper presented at IEEE International Conference on Dielectric Liquids (ICDL) 2019, Roma, Italy.