Partial Discharge Activity in PILC Belted Medium Voltage Cable
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PILC belted cable, Finite Element Method, Electric Field distribution, Partial Discharges.
Abstract
The variation nature of electric field distribution within Medium Voltage (MV) cable insulation results in high sensitivity in Partial Discharge (PD) activity behaviour detection. This paper presented electric field modelling of medium voltage cable containing voids under 3-phase voltage conditions in service. The electric field distribution within a three-phase Paper Insulated Lead Covered (PILC) insulted belted cable containing different void-defect positions is analysed using the COMSOL multiphysics finite element environment. The relationship between the three phase voltages and electric stress amount of different void-defect positions is given. The results will lead to good understanding of PD activity in paper insulated lead covered belted cable.
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