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2010•Advanced Technology of Electrical Engineering and EnergyRequires access

Propagation stage characteristics of electrical tree in 110kV XLPE cable insulation at 50Hz power frequency voltage

Li Jinfei

Open publisher page 1 citations

Abstract

Based on the combined experimental methods of real-time microscope digital imaging technology and partial discharge continuous measurement,the structure properties and propagation characteristics of electrical tree in 110kV XLPE cable insulation were studied at different 50Hz power frequency applied voltage.Combined with a number of experimental results,it was found that under the effect of different applied voltages,the electrical tree structures displayed the features of diversity,the propagation process and partial discharge showed apparent stage characteristics,and also there were different propagation mechanisms in each stage.

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What this paper is about

Based on the combined experimental methods of real-time microscope digital imaging technology and partial discharge continuous measurement,the structure properties and propagation characteristics of electrical tree in 110kV XLPE cable insulation were studied at different 50Hz power frequency applied voltage.Combined with a number of experimental results,it was found that under the effect of different applied voltages,the electrical tree structures displayed the features of diversity,the propagation process and partial discharge showed apparent stage characteristics,and also there were different propagation mechanisms in each stage.

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Available abstract

Based on the combined experimental methods of real-time microscope digital imaging technology and partial discharge continuous measurement,the structure properties and propagation characteristics of electrical tree in 110kV XLPE cable insulation were studied at different 50Hz power frequency applied voltage.Combined with a number of experimental results,it was found that under the effect of different applied voltages,the electrical tree structures displayed the features of diversity,the propagation process and partial discharge showed apparent stage characteristics,and also there were different propagation mechanisms in each stage.

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

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