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JEET, Vol. 10, No. 2, March 2015 
Research on the Relation between Transformer Oil Flow Electrification and Electrostatic Current
Xuejun Xie 
Area 
C  Electrophysics and Applications 
Abstract 
In order to study and obtain the mathematical relation between the electrification degree
of transformer oil flow and the electrostatic current, a small amount of data about the electrification
degree of oil flow and the corresponding electrostatic current is studied by linear regression method
and grey model method. The results show that the linear correlation between the electrification degree
and the electrostatic current was not good, and the relation between the electrification degree of oil
flow and electrostatic current (i) could be expressed as ¥ñ(0) =0.2049 i(0) +169.4419 according to grey
model GM (0, 2) when the electrification degree of oil flow is represented by the charge number
generated from transformer oil per unit volume, namely the charge density (¥ñ). 
Keyword 
Oil flow electrification,Electrostatic current,Grey model

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