The Study to Use Stress Cone Terminators for Partial Discharge Measurement in High Voltage Underground Cable

Abstract

This paper presents the studying of using the stress cone terminator for partial discharge measurement.The stress cone terminator is used for high voltage underground cable witch has rated voltage of 12/20(24) kV and a cross section area of 240 mm.2 The stress cone terminator is produced from superlenenylon for electric stress control like a capacitive stress control. The dimension of the stress cone and anelectric field stress distribution are simulated using Finite Element Method (FEM). The stress cone terminatorshave a diameter of 8.86 cm. and a length of 12 cm. It is shorter than optimization oil tube terminator 40%and it does not use insulation for stress control because a stress cone can reduce an electric field. Thosecan reduce an electric field to 7.67 kV. Furthermore, the cable terminator is utilized in measuring the partialdischarges both in laboratory and on-site tests according to IEC standards, No.60502-2 and No.60270.With low cost to produced and mobility in use, because it's has smallest size.

Keywords : Partial Discharge Measurement / Cable Terminator