Determination of Partial Discharge Inception Voltage and Location of Partial Discharges by Means of Paschen’s Theory and FEM

Guillaume Parent (1) , Mathieu Rossi (1) , Stephane Duchesne (1) , Patrick Dular (2)

1 LSEE - Laboratoire Systèmes Electrotechniques et Environnement
2 ACE - Applied and Computational Electromagnetics [Liège]

Determining the partial discharge (PD) inception voltage (PDIV) is a key point when designing electrical coils or busbars. In this paper, a method making it possible to calculate the PDIV as well as to locate PDs in windings of any shape is presented. It is based on a 2-D finite-element computation using both dual-i.e., scalar and vector potential-electrostatic formulations and a comparison of the obtained operating points with Paschen's curve.

Keywords: Finite element method; field lines; partial discharge inception voltage

Domains: Engineering Sciences [physics]; Electromagnetism

Guillaume Parent, Mathieu Rossi, Stephane Duchesne, Patrick Dular. Determination of Partial Discharge Inception Voltage and Location of Partial Discharges by Means of Paschen’s Theory and FEM. IEEE Transactions on Magnetics, 2019, 55 (6), pp.7203504. ⟨10.1109/TMAG.2019.2902374⟩. ⟨hal-03350675⟩