2011•Power System and Clean EnergyRequires access

Growth Situation and Partial Discharge Characteristics of Electrical Tree in 110kV XLPE Cable Insulation at Different Power Frequency Voltages

Ma Le

Abstract

In the aging process of the 110kv XLPE cable,it is found that the growth characteristics of the electrical tree are different at different voltages.By analyzing the growth characteristics and partial discharge at each stage,it is found that the maximum quantity of a partial discharge and frequency of partial discharges within one power frequency cycle are related to the characteristics of the tree growth.Results have proved that certain features of the partial discharge can better reflect severity of the electrical tree.

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Key concepts: Partial discharge, Electrical treeing, Power cable, Voltage, Materials science, Electrical engineering, Tree (set theory), Power (physics)