Electric field distribution is the key factor determining the short-time voltage withstanding ability and the long-term running reliability of HVDC cable insulation. Under stable operation condition, the electric field distribution of HVDC cables is mainly determined by the conductivity of insulating materials, and the phenomenon of electric field distribution reversion will happen under the higher temperature gradient. The transient electric field distribution in HVDC cable at the moment putting into opera...
activation energy should be reduced and the electric fielddependent coefficient of conductivity of the insulatingmaterials should be increased by the effective control means inresearch and development of insulating materials,and that thetemperature gradie
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