A phenomenological model to estimate life of insulation systems subjected to DC stress with or without polarity inversions is presented in the paper. The model is obtained applying Miner's law to life deriving from the decomposition of the supply stress in a DC voltage plus impulse voltages. The latter accounts for accelerated aging due to inversion. The model is validated resorting to life tests with and without inversions, carried out on Polyethylene materials for cable application.

Life estimation of DC insulation systems in the presence of voltage-polarity inversions

Cavallini A.;Fabiani D.;Mazzanti G.;Montanari G. C.;Simoni L.
2000

Abstract

A phenomenological model to estimate life of insulation systems subjected to DC stress with or without polarity inversions is presented in the paper. The model is obtained applying Miner's law to life deriving from the decomposition of the supply stress in a DC voltage plus impulse voltages. The latter accounts for accelerated aging due to inversion. The model is validated resorting to life tests with and without inversions, carried out on Polyethylene materials for cable application.
Proceedings of 2000 International Symposium on Electrical Insulation (IEEE/ISEI)
473
476
Cavallini A.; Fabiani D.; Mazzanti G.; Montanari G.C.; Simoni L.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11585/885971
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