Keywords
air inclusion
single partial discharge
computer modeling полиэтиленовая изоляция силового кабеля
воздушное включение
частичный разряд
компьютерное моделирование
How to Cite
Abstract
Computer modeling of electric and thermal fields in the polyethylene insulation of power cable containing air inclusion is carried out for the case of initiating of single partial discharge. The discharge is considered as transient process in heterogeneous dielectric characterized by changing conductivity. The mathematical model is realized by finite-element method in Comsol. As shown by means of numerical simulation, during single partial discharge the temperature of air inclusion with 10 pm radius momentarily increases by 2-4 °C. References 12, table 1, figures 5.
References
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