Abstract
Epoxy resin and mica sheets consist the essential insulation of rotating machine stator bars. Such an insulation, although very resistant to partial discharges, is subjected to considerable electrical stresses and consequently electrical trees may ensue. In this paper, an effort is made to simulate electrical tree propagation in multiple epoxy resin/mica sheets with the aid of Cellular Automata (CA). An attempt to compare the simulation results with experimental results is also made.
Highlights
Electrical trees constitute a network of channels full of either solid, gaseous or even liquid byproducts
It was considered that the local value of the damage/unit length had to be greater than a critical value Wc. and the electric field value near the damaged area had to be greater than the critical dielectric strength of the material [15, 16]
The simulation method based on Cellular Automata (CA) takes into account the fluctuations of permittivity, the local dielectric strength of the materials and the boundary conditions according to the electromagnetic theory at the interfaces between: epoxy resin and mica sheet epoxy resin and electrodes The simulation successfully reproduces electrical tree propagation with a point–plane electrode arrangement
Summary
Abstract— Epoxy resin and mica sheets consist the essential insulation of rotating machine stator bars. Such an insulation, very resistant to partial discharges, is subjected to considerable electrical stresses and electrical trees may ensue. An effort is made to simulate electrical tree propagation in multiple epoxy resin/mica sheets with the aid of Cellular Automata (CA). An attempt to compare the simulation results with experimental results is made
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Engineering, Technology & Applied Science Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
