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Effects of space charge on flow electrification characteristics under DC voltage.
- Source :
- IEEE Transactions on Dielectrics & Electrical Insulation; Aug2018, Vol. 25 Issue 4, p1492-1501, 10p
- Publication Year :
- 2018
-
Abstract
- An closed oil circulating system with plane electrode was built to study the effect of space charge on oil flow electrification under DC voltage. The results reveal that with the increase of applied voltage, the streaming current was always enhanced. However, the polarity of streaming current depends on the sample configuration. If the negative high voltage electrode was exposed to oil layer, streaming current was negative. Otherwise streaming current had a tendency to be positive as applied voltage increased. In experimental model without exposed electrode, the polarity of streaming current was always positive. And the amplitude of streaming current was related to the number of insulating papers placed under electrode. More craft papers placed under negative high voltage electrode led to the increase of streaming current. Based on the bipolar transport model, a new simulation method is proposed to study the effect of charge injection and transportation on flow electrification under DC voltage. The simulation results agree well with the experimental result. [ABSTRACT FROM AUTHOR]
- Subjects :
- SPACE charge
ELECTRIFICATION
ELECTRIC fields
ELECTRIC potential
DIRECT currents
Subjects
Details
- Language :
- English
- ISSN :
- 10709878
- Volume :
- 25
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Dielectrics & Electrical Insulation
- Publication Type :
- Academic Journal
- Accession number :
- 131244601
- Full Text :
- https://doi.org/10.1109/TDEI.2018.006977