In this paper the traditional enlargement law for AC cables − based on the so-called “volume effect” − is extended to DC cables via an innovative theoretical approach, that takes into account some aspects peculiar of HVDC cables, i.e. the dependence of the electric field profile on volume electrical resistivity of the insulation, the associated dependence of volume resistivity on electric field and temperature, the role played by the heat dissipated through the cable layers and by the thermal resistivity of the insulation. An application of the novel enlargement law developed is given in the paper considering real HVDC cables and examining the influence of some of the many parameters appearing in the model.
The application of the enlargement law to HVDC cable lines / M. Marzinotto; G. Mazzanti. - STAMPA. - 2:(2010), pp. 506-509. (Intervento presentato al convegno 2010 IEEE Conference on Electrical Insulation and Dielectric Phenomena (IEEE CEIDP). tenutosi a West Lafayette, Indiana (USA) nel 17-20 ottobre 2010) [10.1109/CEIDP.2010.5724054].
The application of the enlargement law to HVDC cable lines
MAZZANTI, GIOVANNI
2010
Abstract
In this paper the traditional enlargement law for AC cables − based on the so-called “volume effect” − is extended to DC cables via an innovative theoretical approach, that takes into account some aspects peculiar of HVDC cables, i.e. the dependence of the electric field profile on volume electrical resistivity of the insulation, the associated dependence of volume resistivity on electric field and temperature, the role played by the heat dissipated through the cable layers and by the thermal resistivity of the insulation. An application of the novel enlargement law developed is given in the paper considering real HVDC cables and examining the influence of some of the many parameters appearing in the model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
