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Electrical breakdown or electrical treeing simulation in high voltage solid insulation material
Posted 29 nov 2020, 14:00 GMT-5 Electromagnetics, Low-Frequency Electromagnetics, Charged Particle Tracing, Plasma Physics, COMSOL Server, Materials, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers, Equation-Based Modeling Version 5.5 2 Replies
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I need to simulate an electrical tree i.e. breakdown path or cracks in insulation material created by the application of high voltage. For which,
I am using AC/DC Electrostatics physics (time dependant).
Define the geometry.
Assign the material to it.
Created a random perturbation (air bubble) into my base material.
Applied the required voltage across the sample according to its breakdown strength.
Added my partial differntial equations for electrical treeing: phase field model.
But the breakdown path/electrical tree doesnot initiate.
Can anyone please guide me in simulating electrical tree (breakdown path) in solid insulation material (Polyethylene). Do I need to add some other module for breakdown detection?
Thanks.