An accurate method for numerical simulation of electrical tree growth process by finite element method

The electrical tree growth process was simulated by using the two-dimensional finite element method. A new algorithm was developed for investigating the electrical tree growth mechanism, utilizing the concepts of the critical field F/sub c/ and the breakdown field F/sub b/, which are estimated from...

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Bibliographic Details
Main Authors: Lee, J.-H., Park, G.-S., Dong-Young, Y., Kim, S.-G., Hahn, S.-Y., Han, M.-K.
Format: Conference Proceeding
Language:English
Subjects:
Boundary conditions
Dielectrics
Electric breakdown
Finite element methods
Information geometry
Laplace equations
Numerical simulation
Shape control
Solid modeling
Trees - insulation
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Summary:The electrical tree growth process was simulated by using the two-dimensional finite element method. A new algorithm was developed for investigating the electrical tree growth mechanism, utilizing the concepts of the critical field F/sub c/ and the breakdown field F/sub b/, which are estimated from the results of tree initiation experiments. It is shown that the F/sub c/ and F/sub b/ are the key parameters for evaluating the growth probability function. The simulated tree patterns were found to agree well with the experimental tree patterns. The simulations showed that the topology of the tree pattern was critically controlled by the growth probability function shapes.< >
ISSN:1089-084X
DOI:10.1109/ELINSL.1992.247049