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One of the most significant current discussions in insulation materials is the influence of space charge on electrical ageing processes. The space charge observed under both dc and ac high voltage makes the role of space charge in electrical ageing increasingly difficult to ignore. A considerable amount of literature has been published on electrical ageing models with different physical mechanisms...
Simulations in polymeric aging models have been performed on the DMM life model in terms of generic aging features. These simulations were carried out on polyethylene-terephthalate (PET) samples with a thickness of 1mm, under DC fields of 40 and 20 MV/m and temperatures of 110 and 180 ºC. Representation of the work was performed in 2-D to demonstrate the evolution of damage structures during aging...
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