论文信息 - Flow electrification measurements in a Couette flow facility

Flow electrification measurements in a Couette flow facility

A rotating cylindrical electrode experiment, with cylindrical Couette flow, has been used to simulate flow electrification in an electric power transformer. A simple model relates the terminal open circuit voltage and short circuit current to the charge redistribution by the flowing fluid. Sample measurements of the volume charge density in the oil and the terminal quantities are found to be in qualitative agreement with the model.<<ETX>>

Markus Zahn | A. P. Washabaugh

[1] Markus Zahn,et al. An absolute charge sensor of fluid electrification measurements , 1991 .

[2] Philip von Guggenberg. Applications of interdigital dielectrometry to moisture and double layer measurements in transformer insulation , 1993 .

[3] M. Zahn,et al. Application of DC voltages for determining flow electrification boundary conditions , 1993, Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93).

[4] Markus Zahn,et al. Fluid electrification measurements of transformer pressboard/oil insulation in a Couette charger , 1991 .

[5] K. Hiraishi,et al. Static Electrification and Partial Discharges Caused by Oil Flow in Forced Oil Cooled Core Type Transformers , 1979, IEEE Transactions on Power Apparatus and Systems.