Low Pressure Partial Discharge Investigation with FEM Modeling for a Twisted Pair of Insulated Conductors

Author

Liu, X.

Author_Institution

Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH

fYear

2006

fDate

15-18 Oct. 2006

Firstpage

611

Lastpage

614

Abstract

Partial discharge (PD) phenomena with a twisted pair configuration of insulated conductors have been investigated in a low pressure environment. The pressure range was from 2 to 760 Torr. PD waveforms were recorded using a 50-Omega viewing resistor. Representative PD waveforms at various pressures are presented. Three-dimensional two-variable histograms of PD amplitude and rise time vs. phase angle of the 60 Hz source voltage were developed. Visual phenomena of PD manifestation at low pressure were observed in the laboratory. Several two-dimensional cross-section modeling of the twisted pair of insulated conductors were constructed to study the electric field distribution of the electrode configuration. Correlations between the PD waveform characteristics and the physical PD mechanisms were investigated with the help of the finite element method (FEM) modeling techniques.

Keywords

finite element analysis; partial discharges; twisted pair cables; 2 to 760 Torr; 2D cross-section modeling; 3D two-variable histograms; 60 Hz; FEM modeling; electric field distribution; electrode configuration; finite element method; insulated conductors; low pressure partial discharge investigation; Argon; Conductors; Dielectrics and electrical insulation; Electrodes; Finite element methods; Gas insulation; Histograms; Partial discharges; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 2006 IEEE Conference on

Conference_Location

Kansas City, MO

Print_ISBN

1-4244-0547-5

Electronic_ISBN

1-4244-0547-5

Type

conf

DOI

10.1109/CEIDP.2006.312006

Filename

4105507