Small but repetitive charge packets injected from both electrodes, that cross insulation very rapidly and accumulate at the counter electrodes, are observed in polyethylene-based insulating materials. The results presented in this paper show that the charge packet amplitude remains almost independent of field and temperature, while mobility and repetition rate are thermally activated quantities. This indicates that a minimum quantity of charge is needed for the packet to be injected and transported through the insulation, while at higher temperatures the number of packets per unit time and the mobility increases.
Space charge accumulation due to ultra-fast charge packets in XLPE insulated cables: the effect of temperature and field / D. Fabiani; G. C. Montanari; L. A. Dissado. - STAMPA. - (2009), pp. 337-340. (Intervento presentato al convegno IEEE International Conference on Properties and Application of Dielectric Materials (IEEE ICPADM) tenutosi a Harbin (China) nel luglio 2009).
Space charge accumulation due to ultra-fast charge packets in XLPE insulated cables: the effect of temperature and field
FABIANI, DAVIDE;MONTANARI, GIAN CARLO;
2009
Abstract
Small but repetitive charge packets injected from both electrodes, that cross insulation very rapidly and accumulate at the counter electrodes, are observed in polyethylene-based insulating materials. The results presented in this paper show that the charge packet amplitude remains almost independent of field and temperature, while mobility and repetition rate are thermally activated quantities. This indicates that a minimum quantity of charge is needed for the packet to be injected and transported through the insulation, while at higher temperatures the number of packets per unit time and the mobility increases.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
